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Li M, Yi X, Fan L, Yang L, Xie S, Shentu J. Bioequivalence Study of Two Formulations of Mifepristone Tablets in Healthy Chinese Subjects Under Fasting Conditions. Clin Pharmacol Drug Dev 2023; 12:874-880. [PMID: 37145969 DOI: 10.1002/cpdd.1249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 03/06/2022] [Indexed: 05/07/2023]
Abstract
A single-dose, open-label, randomized, two-period crossover-design study was conducted to evaluate the bioequivalence of the reference and test formulations of mifepristone tablets. Each subject was randomized at the beginning to receive a 25-mg tablet of the test or the reference mifepristone under fasting conditions during the first period, then received the alternate formulation during the second period following a 2-week washout period. A validated high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method was used to determine the plasma concentrations of mifepristone and its two metabolites (RU42633 and RU42698). Fifty-two healthy subjects were enrolled in this trial, 50 of whom completed the study. The 90% confidence intervals for the log-transformed Cmax , AUC0-t , and AUC0-∞ fell within the accepted 80%-125% range. Throughout the study period, a total of 58 treatment-emergent adverse events were reported. No serious adverse event was observed. In conclusion, the test and reference mifepristone were bioequivalent and well tolerated under fasting conditions.
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Affiliation(s)
- Mupeng Li
- Phase 1 Clinical Trial Center, Deyang People's Hospital, Deyang, Sichuan, China
| | - Xinchu Yi
- Phase 1 Clinical Trial Center, Deyang People's Hospital, Deyang, Sichuan, China
| | - Lianlian Fan
- Phase 1 Clinical Trial Center, Deyang People's Hospital, Deyang, Sichuan, China
| | - Luoxi Yang
- Phase 1 Clinical Trial Center, Deyang People's Hospital, Deyang, Sichuan, China
| | - Shan Xie
- Phase 1 Clinical Trial Center, Deyang People's Hospital, Deyang, Sichuan, China
| | - Jianzhong Shentu
- Phase 1 Clinical Trial Center, Deyang People's Hospital, Deyang, Sichuan, China
- Research Center for Clinical Pharmacy, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
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2
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Li W, Lin A, Qi L, Lv X, Yan S, Xue J, Mu N. Immunotherapy: A promising novel endometriosis therapy. Front Immunol 2023; 14:1128301. [PMID: 37138868 PMCID: PMC10150018 DOI: 10.3389/fimmu.2023.1128301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/29/2023] [Indexed: 05/05/2023] Open
Abstract
Endometriosis is a common disease of the female reproductive system and has malignant features. Although endometriosis by itself is a benign disease, its erosive growth characteristics lead to severe pelvic pain and female infertility. Unfortunately, several aspects of the pathogenesis of endometriosis are still unclear. Furthermore, the clinical therapeutic methods are unsatisfactory. The recurrence rate of endometriosis is high. Accumulating evidence suggests that the onset and development of endometriosis are closely related to the abnormal function of the female autoimmune system, especially the function of some immune cells such as the aggregation of neutrophils, abnormal differentiation of macrophages, decreased cytotoxicity of NK cells, and abnormal function of T- and B-cell lines. Therefore, immunotherapy is probably a novel therapeutic strategy for endometriosis besides surgery and hormone therapy. However, information regarding the clinical application of immunotherapy in the treatment of endometriosis is very limited. This article aimed to review the effects of existing immunomodulators on the development of endometriosis, including immune cell regulators and immune factor regulators. These immunomodulators clinically or experimentally inhibit the pathogenesis and development of endometriosis lesions by acting on the immune cells, immune factors, or immune-related signaling pathways. Thus, immunotherapy is probably a novel and effective clinical treatment choice for endometriosis. Experimental studies of the detailed mechanism of immunotherapy and large-scale clinical studies about the effectiveness and safety of this promising therapeutic method are required in the future.
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Affiliation(s)
- Wenshu Li
- Departments of Gynecology and Obstetrics, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, China
| | - Aimin Lin
- Departments of Gynecology and Obstetrics, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, China
- Departments of Gynecology and Obstetrics, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
| | - Lin Qi
- Departments of Gynecology and Obstetrics, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, China
| | - Xin Lv
- Departments of Gynecology and Obstetrics, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, China
| | - Shenghuan Yan
- Departments of Gynecology and Obstetrics, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, China
| | - Jing Xue
- Departments of Gynecology and Obstetrics, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, China
| | - Nan Mu
- Departments of Gynecology and Obstetrics, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, China
- Specialized Laboratory of Gynecology and Obstetrics, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai, Shandong, China
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3
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Buggio L, Dridi D, Barbara G, Merli CEE, Cetera GE, Vercellini P. Novel pharmacological therapies for the treatment of endometriosis. Expert Rev Clin Pharmacol 2022; 15:1039-1052. [PMID: 36000243 DOI: 10.1080/17512433.2022.2117155] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Endometriosis is a chronic, estrogen-dependent, inflammatory disease associated with pelvic pain, infertility, impaired sexual function, and psychological suffering. Therefore, tailored patient management appears of primary importance to address specific issues and identify the appropriate treatment for each woman. Over the years, abundant research has been carried out with the objective to find new therapeutic approaches for this multifaceted disease. AREAS COVERED This narrative review aims to present the latest advances in the pharmacological management of endometriosis. In particular, the potential role of GnRH antagonists, selective progesterone receptor modulators (SPRMs), and selective estrogen receptors modulators (SERMs) will be discussed. We performed a literature search in PubMed and Embase, and selected the best quality evidence, giving preference to the most recent and definitive original articles and reviews. EXPERT OPINION Medical therapy represents the cornerstone of endometriosis management, although few advances have been made in the last decade. Most studies have focused on the evaluation of the efficacy and safety of GnRH antagonists (plus add-back therapy in cases of prolonged treatment), which should be used as second-line treatment options in selected cases (i.e. non-responders to first-line treatments). Further studies are needed to identify the ideal treatment for women with endometriosis.
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Affiliation(s)
- Laura Buggio
- Gynecology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Commenda, 12, 20122 Milan, Italy
| | - Dhouha Dridi
- Gynecology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Commenda, 12, 20122 Milan, Italy
| | - Giussy Barbara
- Gynecology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Commenda, 12, 20122 Milan, Italy.,Department of Clinical Sciences and Community Health, Università degli Studi, Milan, Italy
| | - C E E Merli
- Gynecology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Commenda, 12, 20122 Milan, Italy
| | - Giulia Emily Cetera
- Gynecology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Commenda, 12, 20122 Milan, Italy
| | - Paolo Vercellini
- Gynecology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Commenda, 12, 20122 Milan, Italy.,Department of Clinical Sciences and Community Health, Università degli Studi, Milan, Italy
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Karena ZV, Shah H, Vaghela H, Chauhan K, Desai PK, Chitalwala AR. Clinical Utility of Mifepristone: Apprising the Expanding Horizons. Cureus 2022; 14:e28318. [PMID: 36158399 PMCID: PMC9499832 DOI: 10.7759/cureus.28318] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2022] [Indexed: 11/30/2022] Open
Abstract
Mifepristone is a progesterone and glucocorticoid receptor antagonist. Medical abortion with mifepristone and prostaglandin has revolutionized the abortion process extending abortion care to the doors of females. From as low as 2 mg/day to doses extending to 600 mg, from daily dosing to single dosage treatment, mifepristone has a wide perspective in the treatment of various pathologies. Cervical dilatation and myometrial contractility have made the utility of mifepristone feasible for second-trimester termination of pregnancy and induction of labor awaiting Food and Drug Administration approvals. Its anti-progesterone action on the menstrual cycle has a new dimension of use as a contraceptive, as well as use as a menstruation inductive agent. Its role in endometriosis, ectopic pregnancy, and adenomyosis requires more intensive research. Apoptotic action of mifepristone, interference of heterotypic cell adhesion to the basement membrane, cell migration, growth inhibition of various cancer cell lines, decreased epidermal growth factor expression, suppression of invasive and metastatic cancer potential, increase in tumor necrosis factor, downregulation of cyclin-dependent kinase 2, B-cell lymphoma 2, and Nuclear factor kappa B have opened its potential to be explored as anti-cancer treatment and its effects on leiomyoma. The drug needs to be studied more for the prospectus of its anti-glucocorticoid actions in a wider dimension beyond its acquiescence for the treatment of Cushing syndrome.
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5
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Zhong C, Lu Y, Li Y, Xie H, Zhou G, Jia L. Similarities and differences between embryonic implantation and CTC invasion: Exploring the roles of abortifacients in cancer metastasis chemoprevention. Eur J Med Chem 2022; 237:114416. [DOI: 10.1016/j.ejmech.2022.114416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 04/18/2022] [Accepted: 04/24/2022] [Indexed: 11/03/2022]
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Islam MS, Chen LW, Segars JH. Selective Progesterone Receptor Modulators (SPRMs) and Androgen Receptor Modulators (SARMs) as Treatment for Benign Gynecologic Diseases. Clin Obstet Gynecol 2021; 64:813-836. [PMID: 34524172 DOI: 10.1097/grf.0000000000000659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Common benign gynecologic conditions such as uterine fibroids and endometriosis are linked to chronic pelvic pain, abnormal and heavy uterine bleeding, and infertility. Effective medical management of these diseases is an unmet need. The steroid hormones progesterone (P4), estrogen (E2), and testosterone play a major role in reproductive physiology and uterine pathologies. Notably, selective progesterone receptor modulators have shown considerable promise as treatment options for some hormone-dependent conditions. More limited data are available regarding the safety and efficacy of selective androgen receptor modulators. In this report we review current evidence for selective progesterone receptor modulators and selective androgen receptor modulators as treatment options for benign gynecologic conditions.
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Affiliation(s)
- Md Soriful Islam
- Division of Reproductive Sciences and Women's Health Research, Department of Gynecology and Obstetrics, Johns Hopkins Medicine, Baltimore, Maryland
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7
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Islam MS, Afrin S, Jones SI, Segars J. Selective Progesterone Receptor Modulators-Mechanisms and Therapeutic Utility. Endocr Rev 2020; 41:5828992. [PMID: 32365199 PMCID: PMC8659360 DOI: 10.1210/endrev/bnaa012] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 04/30/2020] [Indexed: 02/07/2023]
Abstract
Selective progesterone receptor modulators (SPRMs) are a new class of compounds developed to target the progesterone receptor (PR) with a mix of agonist and antagonist properties. These compounds have been introduced for the treatment of several gynecological conditions based on the critical role of progesterone in reproduction and reproductive tissues. In patients with uterine fibroids, mifepristone and ulipristal acetate have consistently demonstrated efficacy, and vilaprisan is currently under investigation, while studies of asoprisnil and telapristone were halted for safety concerns. Mifepristone demonstrated utility for the management of endometriosis, while data are limited regarding the efficacy of asoprisnil, ulipristal acetate, telapristone, and vilaprisan for this condition. Currently, none of the SPRMs have shown therapeutic success in treating endometrial cancer. Multiple SPRMs have been assessed for efficacy in treating PR-positive recurrent breast cancer, with in vivo studies suggesting a benefit of mifepristone, and multiple in vitro models suggesting the efficacy of ulipristal acetate and telapristone. Mifepristone, ulipristal acetate, vilaprisan, and asoprisnil effectively treated heavy menstrual bleeding (HBM) in patients with uterine fibroids, but limited data exist regarding the efficacy of SPRMs for HMB outside this context. A notable class effect of SPRMs are benign, PR modulator-associated endometrial changes (PAECs) due to the actions of the compounds on the endometrium. Both mifepristone and ulipristal acetate are effective for emergency contraception, and mifepristone was approved by the US Food and Drug Administration (FDA) in 2012 for the treatment of Cushing's syndrome due to its additional antiglucocorticoid effect. Based on current evidence, SPRMs show considerable promise for treatment of several gynecologic conditions.
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Affiliation(s)
- Md Soriful Islam
- Department of Gynecology and Obstetrics, Division of Reproductive Sciences & Women's Health Research, Johns Hopkins Medicine, Baltimore, Maryland
| | - Sadia Afrin
- Department of Gynecology and Obstetrics, Division of Reproductive Sciences & Women's Health Research, Johns Hopkins Medicine, Baltimore, Maryland
| | - Sara Isabel Jones
- Department of Gynecology and Obstetrics, Division of Reproductive Sciences & Women's Health Research, Johns Hopkins Medicine, Baltimore, Maryland
| | - James Segars
- Department of Gynecology and Obstetrics, Division of Reproductive Sciences & Women's Health Research, Johns Hopkins Medicine, Baltimore, Maryland
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8
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Meng W, Ta N, Wang F. Add-on effect of Guizhi Fuling formula to mifepristone for endometriosis: A meta-analysis of randomized controlled trials. Medicine (Baltimore) 2019; 98:e16878. [PMID: 31415429 PMCID: PMC6831320 DOI: 10.1097/md.0000000000016878] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Guizhi Fuling pill, a famous traditional Chinese herbal formula, has been widely used for treatment of gynecological diseases. This meta-analysis sought to evaluate the add-on effect of Guizhi Fuling capsule (GZFL) to mifepristone in women with endometriosis. METHODS A comprehensively literature search was conducted using Pubed, Embase, Cochrane Library, Wanfang, CNKI, VIP databases from their inceptions to January 25, 2019. Randomized controlled trials that compared GZFL plus mifepristone to mifepristone alone for treatment of endometriosis were eligible. Main outcomes were pregnancy, reduction of the recurrence, and serum level of follicle-stimulating hormone, luteinizing hormone, estradiol or progesterone. RESULTS A total of 1052 women with endometriosis from 10 trials were identified and analyzed. Meta-analyses showed that GZFL plus mifepristone was superior to mifepristone in reducing the recurrence of endometriosis (RR 0.40; 95% CI 0.27-0.59) and improving the pregnancy (risk ratio [RR] 1.74; 95% confidence intervals [CI] 1.40-2.17). Moreover, adjuvant treatment with GZFL also significantly reduced serum level of estradiol (mean difference [MD] -20.83 pmol/L; 95% CI -34.01 to -7.65) and progesterone (MD -0.18 mmol/L; 95% CI -0.23 to -0.12). However, there were no significant differences in serum level of follicle-stimulating hormone (MD -0.42 U/L; 95% CI -1.16 to 0.31) and luteinizing hormone (MD -0.04 U/L; 95% CI -0.43 to 0.34). CONCLUSION GZFL as adjuvant therapy to mifepristone appears to have additional benefits in preventing recurrence of endometriosis and improving pregnancy among women with endometriosis. However, these conclusions should be interpreted with caution due to the methodological flaws of the included trials.
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9
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Bulun SE, Yilmaz BD, Sison C, Miyazaki K, Bernardi L, Liu S, Kohlmeier A, Yin P, Milad M, Wei J. Endometriosis. Endocr Rev 2019; 40:1048-1079. [PMID: 30994890 PMCID: PMC6693056 DOI: 10.1210/er.2018-00242] [Citation(s) in RCA: 353] [Impact Index Per Article: 70.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 04/08/2019] [Indexed: 02/08/2023]
Abstract
Pelvic endometriosis is a complex syndrome characterized by an estrogen-dependent chronic inflammatory process that affects primarily pelvic tissues, including the ovaries. It is caused when shed endometrial tissue travels retrograde into the lower abdominal cavity. Endometriosis is the most common cause of chronic pelvic pain in women and is associated with infertility. The underlying pathologic mechanisms in the intracavitary endometrium and extrauterine endometriotic tissue involve defectively programmed endometrial mesenchymal progenitor/stem cells. Although endometriotic stromal cells, which compose the bulk of endometriotic lesions, do not carry somatic mutations, they demonstrate specific epigenetic abnormalities that alter expression of key transcription factors. For example, GATA-binding factor-6 overexpression transforms an endometrial stromal cell to an endometriotic phenotype, and steroidogenic factor-1 overexpression causes excessive production of estrogen, which drives inflammation via pathologically high levels of estrogen receptor-β. Progesterone receptor deficiency causes progesterone resistance. Populations of endometrial and endometriotic epithelial cells also harbor multiple cancer driver mutations, such as KRAS, which may be associated with the establishment of pelvic endometriosis or ovarian cancer. It is not known how interactions between epigenomically defective stromal cells and the mutated genes in epithelial cells contribute to the pathogenesis of endometriosis. Endometriosis-associated pelvic pain is managed by suppression of ovulatory menses and estrogen production, cyclooxygenase inhibitors, and surgical removal of pelvic lesions, and in vitro fertilization is frequently used to overcome infertility. Although novel targeted treatments are becoming available, as endometriosis pathophysiology is better understood, preventive approaches such as long-term ovulation suppression may play a critical role in the future.
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Affiliation(s)
- Serdar E Bulun
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Bahar D Yilmaz
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Christia Sison
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Kaoru Miyazaki
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Lia Bernardi
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Shimeng Liu
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Amanda Kohlmeier
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Ping Yin
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Magdy Milad
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - JianJun Wei
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
- Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
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10
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Kagechika H, Fujii S, Yanagida N, Mori S, Kawachi E. Design and Synthesis of Cyclohexenyl-p-carborane Derivatives as a New Class of Progesterone Receptor Antagonists. HETEROCYCLES 2019. [DOI: 10.3987/com-18-s(f)38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Zhang T, De Carolis C, Man GCW, Wang CC. The link between immunity, autoimmunity and endometriosis: a literature update. Autoimmun Rev 2018; 17:945-955. [PMID: 30107265 DOI: 10.1016/j.autrev.2018.03.017] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 03/20/2018] [Indexed: 12/21/2022]
Abstract
Endometriosis (EMS), an estrogen-dependent inflammatory disorder affects approximately 5-10% of the general female population of reproductive age and 20-90% of women with pelvic pain and infertility. Many immunological factors are known to contribute significantly to the pathogenesis and pathophysiology of EMS, and both chronic local inflammation and autoantibodies in EMS shares many similarities with autoimmune diseases (AD). However, the autoimmune etiology in EMS remains controversial, and its evidence on autoimmune basis may be limited. Here we aim to review the current understanding between autoimmunity and EMS to provide important knowledge to develop future potential immunomodulatory therapy for the treatment of EMS.
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Affiliation(s)
- Tao Zhang
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; Shenzhen Youshare Biotechnology Co. Ltd, Shenzhen, Guangdong, China
| | - Caterina De Carolis
- Polymedical Center for Prevention of Recurrent Spontaneous Abortion, Rome, Italy.
| | - Gene Chi Wai Man
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
| | - Chi Chiu Wang
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong; School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong.
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13
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From pathogenesis to clinical practice: Emerging medical treatments for endometriosis. Best Pract Res Clin Obstet Gynaecol 2018; 51:92-101. [DOI: 10.1016/j.bpobgyn.2018.01.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 01/23/2018] [Indexed: 12/12/2022]
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14
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Nishiyama Y, Mori S, Makishima M, Fujii S, Kagechika H, Hashimoto Y, Ishikawa M. Novel Nonsteroidal Progesterone Receptor (PR) Antagonists with a Phenanthridinone Skeleton. ACS Med Chem Lett 2018; 9:641-645. [PMID: 30034593 DOI: 10.1021/acsmedchemlett.8b00058] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 06/23/2018] [Indexed: 12/15/2022] Open
Abstract
The progesterone receptor (PR) plays an important role in various physiological systems, including female reproduction and the central nervous system, and PR antagonists are thought to be effective not only as contraceptive agents and abortifacients but also in the treatment of various diseases, including hormone-dependent cancers and endometriosis. Here, we identified phenanthridin-6(5H)-one derivatives as a new class of PR antagonists and investigated their structure-activity relationships. Among the synthesized compounds, 37, 40, and 46 exhibited very potent PR antagonistic activity with high selectivity for PR over other nuclear receptors. These compounds are structurally distinct from other nonsteroidal PR antagonists, including cyanoaryl derivatives, and should be useful for further studies of the clinical utility of PR antagonists.
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Affiliation(s)
- Yuko Nishiyama
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Shuichi Mori
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Makoto Makishima
- Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Shinya Fujii
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Hiroyuki Kagechika
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Yuichi Hashimoto
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Minoru Ishikawa
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
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Legendre G, Delbos L, Hudon E, Chabbert-Buffet N, Geoffron S, Sauvan M, Fernandez H, Bouet PE, Descamps P. [New medical treatments for painful endometriosis: CNGOF-HAS Endometriosis Guidelines]. ACTA ACUST UNITED AC 2018. [PMID: 29530558 DOI: 10.1016/j.gofs.2018.02.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The objective of this work is to evaluate the place of new treatments in the management of endometriosis outside the context of infertility. METHODS A review of the literature was conducted by consulting Medline data until July 2017. RESULTS Dienogest is effective compared to placebo in short term (NP2) and long term (NP4) for the treatment of painful endometriosis. In comparison with GnRH agonists, dienogest is also effective in terms of decreased pain and improved quality of life in non-operated patients (NP2) as well as for recurrence of lesions and symptomatology postoperatively (NP2). Data on GnRH antagonists, selective progesterone receptor modulators as well as selective inhibitors (anti-TNF-α, matrix metalloprotease inhibitors, angiogenesis growth factor inhibitors) are insufficient to provide evidence of interest in clinical practice for the management of painful endometriosis (NP3). CONCLUSION Dienogest is recommended as second-line therapy for the management of painful endometriosis (Grade B). Because of lack of evidence, aromatase inhibitors, elagolix, SERM, SPRM and anti-TNF-α are not recommended for the management of painful endometriosis (Grade C).
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Affiliation(s)
- G Legendre
- Service de gynécologie-obstétrique, CHU Angers, 4, rue Larrey, 49033 Angers cedex 01, France; CESP-Inserm, U1018, équipe 7, genre, santé sexuelle et reproductive, UVSQ, université Paris-Saclay, université Paris Sud, 94807 Villejuif, France.
| | - L Delbos
- Service de gynécologie-obstétrique, CHU Angers, 4, rue Larrey, 49033 Angers cedex 01, France
| | - E Hudon
- Service de gynécologie-obstétrique, CHU Angers, 4, rue Larrey, 49033 Angers cedex 01, France
| | - N Chabbert-Buffet
- Service de gynécologie-obstétrique et médecine de la reproduction, Sorbonne université, centre de recherche Saint-Antoine, GRC-6 centre expert en endométriose (CE3), Assistance publique-Hôpitaux de Paris, hôpitaux universitaires Est parisien-Tenon, 75020 Paris, France
| | - S Geoffron
- Service de gynécologie-obstétrique et médecine de la reproduction, Sorbonne université, centre de recherche Saint-Antoine, GRC-6 centre expert en endométriose (CE3), Assistance publique-Hôpitaux de Paris, hôpitaux universitaires Est parisien-Tenon, 75020 Paris, France
| | - M Sauvan
- Service de gynécologie-obstétrique, Assistance publique-Hôpitaux de Paris, hôpital de Bicêtre, 94276 Le Kremlin Bicêtre cedex, France
| | - H Fernandez
- Service de gynécologie-obstétrique, Assistance publique-Hôpitaux de Paris, hôpital de Bicêtre, 94276 Le Kremlin Bicêtre cedex, France
| | - P-E Bouet
- Service de gynécologie-obstétrique, CHU Angers, 4, rue Larrey, 49033 Angers cedex 01, France
| | - P Descamps
- Service de gynécologie-obstétrique, CHU Angers, 4, rue Larrey, 49033 Angers cedex 01, France
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Geoffron S, Legendre G, Daraï E, Chabbert-Buffet N. [Medical treatment of endometriosis: Hormonal treatment of pain, impact on evolution and future perspectives]. Presse Med 2017; 46:1199-1211. [PMID: 29133081 DOI: 10.1016/j.lpm.2017.10.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 10/03/2017] [Accepted: 10/03/2017] [Indexed: 11/30/2022] Open
Abstract
CONTEXT Endometriosis is a chronic painful disease, for which hormone therapy is usually offered as a first line option to women not willing to conceive. OBJECTIVES To analyse and synthesize the literature, from 2006 onwards, on pain control, and disease evolution in oemn using combined hormonal contraceptives, progestins and GnRH analogs. Data on other current and future treatment perspectives is included as well. SOURCES Medline (Pubmed), the Cochrane Library, and endometriosis treatment recommendations published by European Society of Human Reproduction and Embryology (ESHRE), National Institute for health and Care Excellence (NICE), American College of Obstetricians and Gynecologists (ACOG), Royal College of Obstetricians and Gynaecologists (RCOG) and Société des Obstétriciens et Gynécologues du Canada (SOGC). STUDY SELECTION Meta-analysis and clinical trials are included. RESULTS Study quality is heterogeneous in general. Hormone therapy inconstantly allows pain relief and prevention of endometrioma and rectovaginal wall nodules recurrence. Available molecules and routes of administration as well as risk benefit balance are evaluated. Data on future perspectives are limited to date and do not allow use in routine. CONCLUSION Hormonal treatment of endometriosis relies on combined hormonal contraceptives (using different routes of administration), progestins and particularly the levonorgestrel-releasing IUS, and GnRH analogs as a last option, in combination with an add-back therapy. Promising alternatives are currently under preclinical and clinical evaluation.
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Affiliation(s)
- Sophie Geoffron
- AP-HP, université Pierre-et-Marie-Curie Paris 6, hôpital Tenon, service de gynécologie-obstétrique, médecine de la reproduction, 75020 Paris, France
| | - Guillaume Legendre
- CHU d'Angers, service de gynécologie-obstétrique, 49000 Angers, France; Université Paris Sud, CESP-Inserm, U1018, équipe 7, genre, santé sexuelle et reproductive, 75000 Paris, France
| | - Emile Daraï
- AP-HP, université Pierre-et-Marie-Curie Paris 6, hôpital Tenon, service de gynécologie-obstétrique, médecine de la reproduction, 75020 Paris, France; AP-HP, hôpital Tenon, centre expert en endométriose (C3E), 75020 Paris, France; UPMC, groupe de recherche clinique GRC-6, 75020 Paris, France
| | - Nathalie Chabbert-Buffet
- AP-HP, université Pierre-et-Marie-Curie Paris 6, hôpital Tenon, service de gynécologie-obstétrique, médecine de la reproduction, 75020 Paris, France; AP-HP, hôpital Tenon, centre expert en endométriose (C3E), 75020 Paris, France; UPMC, groupe de recherche clinique GRC-6, 75020 Paris, France.
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Friend DR. Drug delivery for the treatment of endometriosis and uterine fibroids. Drug Deliv Transl Res 2017; 7:829-839. [DOI: 10.1007/s13346-017-0423-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Abstract
BACKGROUND Endometriosis is defined as the presence of endometrial tissue (glands and stroma) outside the uterine cavity. This condition is oestrogen-dependent and thus is seen primarily during the reproductive years. Owing to their antiproliferative effects in the endometrium, progesterone receptor modulators (PRMs) have been advocated for treatment of endometriosis. OBJECTIVES To assess the effectiveness and safety of PRMs primarily in terms of pain relief as compared with other treatments or placebo or no treatment in women of reproductive age with endometriosis. SEARCH METHODS We searched the following electronic databases, trial registers, and websites: the Cochrane Gynaecology and Fertility Group (CGFG) Specialised Register of Controlled Trials, the Central Register of Studies Online (CRSO), MEDLINE, Embase, PsycINFO, clinicaltrials.gov, and the World Health Organization (WHO) platform, from inception to 28 November 2016. We handsearched reference lists of articles retrieved by the search. SELECTION CRITERIA We included randomised controlled trials (RCTs) published in all languages that examined effects of PRMs for treatment of symptomatic endometriosis. DATA COLLECTION AND ANALYSIS We used standard methodological procedures as expected by the Cochrane Collaboration. Primary outcomes included measures of pain and side effects. MAIN RESULTS We included 10 randomised controlled trials (RCTs) with 960 women. Two RCTs compared mifepristone versus placebo or versus a different dose of mifepristone, one RCT compared asoprisnil versus placebo, one compared ulipristal versus leuprolide acetate, and four compared gestrinone versus danazol, gonadotropin-releasing hormone (GnRH) analogues, or a different dose of gestrinone. The quality of evidence ranged from high to very low. The main limitations were serious risk of bias (associated with poor reporting of methods and high or unclear rates of attrition in most studies), very serious imprecision (associated with low event rates and wide confidence intervals), and indirectness (outcome assessed in a select subgroup of participants). Mifepristone versus placebo One study made this comparison and reported rates of painful symptoms among women who reported symptoms at baseline.At three months, the mifepristone group had lower rates of dysmenorrhoea (odds ratio (OR) 0.08, 95% confidence interval (CI) 0.04 to 0.17; one RCT, n =352; moderate-quality evidence), suggesting that if 40% of women taking placebo experience dysmenorrhoea, then between 3% and 10% of women taking mifepristone will do so. The mifepristone group also had lower rates of dyspareunia (OR 0.23, 95% CI 0.11 to 0.51; one RCT, n = 223; low-quality evidence). However, the mifepristone group had higher rates of side effects: Nearly 90% had amenorrhoea and 24% had hot flushes, although the placebo group reported only one event of each (1%) (high-quality evidence). Evidence was insufficient to show differences in rates of nausea, vomiting, or fatigue, if present. Mifepristone dose comparisons Two studies compared doses of mifepristone and found insufficient evidence to show differences between different doses in terms of effectiveness or safety, if present. However, subgroup analysis of comparisons between mifepristone and placebo suggest that the 2.5 mg dose may be less effective than 5 mg or 10 mg for treating dysmenorrhoea or dyspareunia. Gestrinone comparisons Ons study compared gestrinone with danazol, and another study compared gestrinone with leuprolin.Evidence was insufficient to show differences, if present, between gestrinone and danazol in rate of pain relief (those reporting no or mild pelvic pain) (OR 0.71, 95% CI 0.33 to 1.56; two RCTs, n = 230; very low-quality evidence), dysmenorrhoea (OR 0.72, 95% CI 0.39 to 1.33; two RCTs, n = 214; very low-quality evidence), or dyspareunia (OR 0.83, 95% CI 0.37 to 1.86; two RCTs, n = 222; very low-quality evidence). The gestrinone group had a higher rate of hirsutism (OR 2.63, 95% CI 1.60 to 4.32; two RCTs, n = 302; very low-quality evidence) and a lower rate of decreased breast size (OR 0.62, 95% CI 0.38 to 0.98; two RCTs, n = 302; low-quality evidence). Evidence was insufficient to show differences between groups, if present, in rate of hot flushes (OR 0.79, 95% CI 0.50 to 1.26; two RCTs, n = 302; very low-quality evidence) or acne (OR 1.45, 95% CI 0.90 to 2.33; two RCTs, n = 302; low-quality evidence).When researchers compared gestrinone versus leuprolin through measurements on the 1 to 3 verbal rating scale (lower score denotes benefit), the mean dysmenorrhoea score was higher in the gestrinone group (MD 0.35 points, 95% CI 0.12 to 0.58; one RCT, n = 55; low-quality evidence), but the mean dyspareunia score was lower in this group (MD 0.33 points, 95% CI 0.62 to 0.04; low-quality evidence). The gestrinone group had lower rates of amenorrhoea (OR 0.04, 95% CI 0.01 to 0.38; one RCT, n = 49; low-quality evidence) and hot flushes (OR 0.20, 95% CI 0.06 to 0.63; one study, n = 55; low quality evidence) but higher rates of spotting or bleeding (OR 22.92, 95% CI 2.64 to 198.66; one RCT, n = 49; low-quality evidence).Evidence was insufficient to show differences in effectiveness or safety between different doses of gestrinone, if present. Asoprisnil versus placebo One study (n = 130) made this comparison but did not report data suitable for analysis. Ulipristal versus leuprolide acetate One study (n = 38) made this comparison but did not report data suitable for analysis. AUTHORS' CONCLUSIONS Among women with endometriosis, moderate-quality evidence shows that mifepristone relieves dysmenorrhoea, and low-quality evidence suggests that this agent relieves dyspareunia, although amenorrhoea and hot flushes are common side effects. Data on dosage were inconclusive, although they suggest that the 2.5 mg dose of mifepristone may be less effective than higher doses. We found insufficient evidence to permit firm conclusions about the safety and effectiveness of other progesterone receptor modulators.
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Affiliation(s)
- Jing Fu
- West China Second University Hospital, Sichuan UniversityDepartment of Obstetrics and GynecologyChengduSichuanChina
| | - Hao Song
- West China Second University Hospital, Sichuan UniversityDepartment of Obstetrics and GynecologyChengduSichuanChina
- Ministry of EducationKey Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University)ChengduChina
| | - Min Zhou
- West China Second University Hospital, Sichuan UniversityDepartment of Obstetrics and GynecologyChengduSichuanChina
| | - Huili Zhu
- West China Second University Hospital, Sichuan UniversityDepartment of Obstetrics and GynecologyChengduSichuanChina
| | - Yuhe Wang
- West China Second University Hospital, Sichuan UniversityDepartment of Obstetrics and GynecologyChengduSichuanChina
| | - Hengxi Chen
- West China Second University Hospital, Sichuan UniversityDepartment of Obstetrics and GynecologyChengduSichuanChina
| | - Wei Huang
- West China Second University Hospital, Sichuan UniversityDepartment of Obstetrics and GynecologyChengduSichuanChina
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Tosti C, Biscione A, Morgante G, Bifulco G, Luisi S, Petraglia F. Hormonal therapy for endometriosis: from molecular research to bedside. Eur J Obstet Gynecol Reprod Biol 2017; 209:61-66. [DOI: 10.1016/j.ejogrb.2016.05.032] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 04/08/2016] [Accepted: 05/18/2016] [Indexed: 12/31/2022]
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Bedaiwy MA, Alfaraj S, Yong P, Casper R. New developments in the medical treatment of endometriosis. Fertil Steril 2017; 107:555-565. [PMID: 28139238 DOI: 10.1016/j.fertnstert.2016.12.025] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 12/21/2016] [Accepted: 12/21/2016] [Indexed: 12/24/2022]
Abstract
Endometriosis affects 1 in 10 women of reproductive-age. The current treatments are surgical and hormonal but have limitations, including the risk of recurrence, side effects, contraceptive action for women who desire pregnancy, and cost. New treatments include gonadotropin-releasing hormone analogues, selective progesterone (or estrogen) receptor modulators, aromatase inhibitors, immunomodulators, and antiangiogenic agents. Further research is needed into central sensitization, local neurogenesis, and the genetics of endometriosis to identify additional treatment targets. A wider range of medical options allows for the possibility of precision health and a more personalized treatment approach for women with endometriosis.
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Affiliation(s)
- Mohamed A Bedaiwy
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics & Gynecology, University of British Columbia, Vancouver, British Columbia.
| | - Sukinah Alfaraj
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics & Gynecology, University of British Columbia, Vancouver, British Columbia
| | - Paul Yong
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics & Gynecology, University of British Columbia, Vancouver, British Columbia
| | - Robert Casper
- Department of Obstetrics and Gynecology, University of Toronto, Toronto, Ontario, Canada
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Estrogen-progestins and progestins for the management of endometriosis. Fertil Steril 2016; 106:1552-1571.e2. [DOI: 10.1016/j.fertnstert.2016.10.022] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 10/10/2016] [Accepted: 10/12/2016] [Indexed: 02/08/2023]
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Pluchino N, Freschi L, Wenger JM, Streuli I. Innovations in classical hormonal targets for endometriosis. Expert Rev Clin Pharmacol 2016; 9:317-27. [PMID: 26645363 DOI: 10.1586/17512433.2016.1129895] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Endometriosis is a chronic disease of unknown etiology that affects approximately 10% of women in reproductive age. Several evidences show that endometriosis lesions are associated to hormonal imbalance, including estrogen synthesis, metabolism and responsiveness and progesterone resistance. These hormonal alterations influence the ability of endometrial cells to proliferate, migrate and to infiltrate the mesothelium, causing inflammation, pain and infertility. Hormonal imbalance in endometriosis represents also a target for treatment. We provide an overview on therapeutic strategies based on innovations of classical hormonal mechanisms involved in the development of endometriosis lesions. The development phase of new molecules targeting these pathways is also discussed. Endometriosis is a chronic disease involving young women and additional biological targets of estrogen and progesterone pharmacological manipulation (brain, bone and cardiovascular tissue) need to be carefully considered in order to improve and overcome current limits of long-term medical management of endometriosis.
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Affiliation(s)
- Nicola Pluchino
- a Division of Obstetrics and Gynecology , University Hospital of Geneva , Geneva , Switzerland
| | - Letizia Freschi
- b Division of Obstetrics and Gynecology , University Hospital of Pisa , Pisa , Italy
| | - Jean-Marie Wenger
- a Division of Obstetrics and Gynecology , University Hospital of Geneva , Geneva , Switzerland
| | - Isabelle Streuli
- a Division of Obstetrics and Gynecology , University Hospital of Geneva , Geneva , Switzerland
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Nelson AL. Investigational hormone receptor agonists as ongoing female contraception: a focus on selective progesterone receptor modulators in early clinical development. Expert Opin Investig Drugs 2015; 24:1321-30. [PMID: 26289789 DOI: 10.1517/13543784.2015.1076791] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION As efforts are made to continue to increase the safety of contraceptive methods, those without estrogen have attracted new attention. Progestin-only options are available in many delivery systems, but most cause disturbed bleeding patterns. For gynecologic patients, selective progesterone receptor modulators (SPRMs) have been approved for medical abortion, for ovulation suppression in emergency contraception, and for the treatment of heavy menstrual bleeding due to leiomyoma. AREAS COVERED This article discusses the role of SPRMs in controlling fertility on an ongoing basis with particular emphasis on mifepristone and ulipristal acetate (UPA), since none of the other compounds has progressed out of early Phase I - II testing. It also discusses important information about the mechanisms of action and safety of these two SPRMs. EXPERT OPINION Of all the investigational hormone agonist/antagonists, SPRMs have demonstrated the greatest potential as ongoing female contraceptives. They have the ability to suppress ovulation after initiation of the luteinizing hormone (LH) surge without affecting ovarian production of estrogen or inducing any significant metabolic changes. SPRMs may well be able to provide longer term contraception as oral agents, vaginal rings, and perhaps even intrauterine devices. UPA has the greatest promise. Current research needs to be expanded.
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Affiliation(s)
- Anita L Nelson
- a Los Angeles BioMedical Research Institute, David Geffen School of Medicine at UCLA, Harbor-UCLA Medical Center, Department of Obstetrics and Gynecology , 1457 3rd Street, Manhattan Beach, CA 90266, USA +1 310 937 7226 ; +1 310 937 1416 ;
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Muñoz-Hernando L, Muñoz-Gonzalez JL, Marqueta-Marques L, Alvarez-Conejo C, Tejerizo-García Á, Lopez-Gonzalez G, Villegas-Muñoz E, Martin-Jimenez A, Jiménez-López JS. Endometriosis: alternative methods of medical treatment. Int J Womens Health 2015; 7:595-603. [PMID: 26089705 PMCID: PMC4468987 DOI: 10.2147/ijwh.s78829] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Endometriosis is an inflammatory estrogen-dependent disease defined by the presence of endometrial glands and stroma at extrauterine sites. The main purpose of endometriosis management is alleviating pain associated to the disease. This can be achieved surgically or medically, although in most women a combination of both treatments is required. Long-term medical treatment is usually needed in most women. Unfortunately, in most cases, pain symptoms recur between 6 months and 12 months once treatment is stopped. The authors conducted a literature search for English original articles, related to new medical treatments of endometriosis in humans, including articles published in PubMed, Medline, and the Cochrane Library. Keywords included "endometriosis" matched with "medical treatment", "new treatment", "GnRH antagonists", "Aromatase inhibitors", "selective progesterone receptor modulators", "anti-TNF α", and "anti-angiogenic factors". Hormonal treatments currently available are effective in the relief of pain associated to endometriosis. Among new hormonal drugs, association to aromatase inhibitors could be effective in the treatment of women who do not respond to conventional therapies. GnRH antagonists are expected to be as effective as GnRH agonists, but with easier administration (oral). There is a need to find effective treatments that do not block the ovarian function. For this purpose, antiangiogenic factors could be important components of endometriosis therapy in the future. Upcoming researches and controlled clinical trials should focus on these drugs.
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Affiliation(s)
- Leticia Muñoz-Hernando
- Endometriosis Unit, Service of Obstetrics and Gynecology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Jose L Muñoz-Gonzalez
- Endometriosis Unit, Service of Obstetrics and Gynecology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Laura Marqueta-Marques
- Endometriosis Unit, Service of Obstetrics and Gynecology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Carmen Alvarez-Conejo
- Endometriosis Unit, Service of Obstetrics and Gynecology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Álvaro Tejerizo-García
- Endometriosis Unit, Service of Obstetrics and Gynecology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Gregorio Lopez-Gonzalez
- Endometriosis Unit, Service of Obstetrics and Gynecology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Emilia Villegas-Muñoz
- Endometriosis Unit, Service of Obstetrics and Gynecology, Hospital Carlos Haya, Malaga, Spain
| | - Angel Martin-Jimenez
- Endometriosis Unit, Service of Obstetrics and Gynecology, Hospital Son Llatzer, Palma de Mallorca, Spain
| | - Jesús S Jiménez-López
- Endometriosis Unit, Service of Obstetrics and Gynecology, Hospital Universitario 12 de Octubre, Madrid, Spain
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Quaas AM, Weedin EA, Hansen KR. On-label and off-label drug use in the treatment of endometriosis. Fertil Steril 2015; 103:612-25. [DOI: 10.1016/j.fertnstert.2015.01.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 01/02/2015] [Accepted: 01/02/2015] [Indexed: 01/25/2023]
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Bourdel N, Alves J, Pickering G, Ramilo I, Roman H, Canis M. Systematic review of endometriosis pain assessment: how to choose a scale? Hum Reprod Update 2014; 21:136-52. [PMID: 25180023 DOI: 10.1093/humupd/dmu046] [Citation(s) in RCA: 209] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Numerous studies concerning endometriosis and pain have been reported. However, there is no consensus on the best method to evaluate pain in endometriosis and many scales have been used. Moreover, there are only a few descriptions of minimal clinically important differences after treatment (MCID) to evaluate variations in pain. In our study, we aim to identify pain scales used in endometriosis pain treatment, to address their strong and weak points and to define which would be the ideal scale to help clinicians and researchers to evaluate endometriosis-related pain. METHODS A search of the MEDLINE and EMBASE databases was carried out for publications in English, French or Portuguese from 1980 to December 2012, for the words: endometriosis, treatment, pain. Studies were selected if they studied an endometriosis treatment and a pain scale was specified. A quantitative and a qualitative analysis of each scale was performed to define strong and weak points of each scale (systematic registration number: CRD42013005336). RESULTS A total of 736 publications were identified. After excluding duplications and applying inclusion criteria 258 studies remained. We found that the visual analog scale (VAS) is the most frequently used scale. Both VAS and the numerical rating scale (NRS) show a good balance between strong and weak points in comparison with others such as the Biberoglu and Behrman scale. Concerning MCID, only VAS, NRS and Brief Pain Inventory scales have reported MCID and, among these, only VAS MCID has been studied in endometriosis patients (VAS MCID = 10 mm). Adding the Clinical Global Impression score (CGI) to the pain scale allows calculation of the MCID. CONCLUSIONS When using pain scales their strengths and weaknesses must be known and included in the analysis. VAS is the most frequently used pain scale and, together with NRS, seems the best adapted for endometriosis pain measurement. The use of VAS or NRS for each type of typical pain related to endometriosis (dysmenorrhea, deep dyspareunia and non-menstrual chronic pelvic pain), combined with the CGI and a quality-of-life scale will provide both clinicians and researchers with tools to evaluate treatment response.
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Affiliation(s)
- Nicolas Bourdel
- Department of Gynecologic Surgery, CHU Estaing Clermont Ferrand, 63058 Clermont Ferrand Cedex 1, France Faculté de medicine, ISIT - Université d'Auvergne, Place Henri Dunant, 63000 Clermont-Ferrand, France
| | - João Alves
- Department of Gynecologic Surgery, CHU Estaing Clermont Ferrand, 63058 Clermont Ferrand Cedex 1, France
| | - Gisele Pickering
- Centre de Pharmacologie Clinique, CHU Clermont Ferrand, Inserm CIC 501, Inserm, U1107 Neuro-Dol, F-63003 Clermont-Ferrand, France
| | - Irina Ramilo
- Department of Gynecologic Surgery, CHU Estaing Clermont Ferrand, 63058 Clermont Ferrand Cedex 1, France
| | - Horace Roman
- Department of Gynecology and Obstetrics, Rouen University Hospital-Charles Nicolle, 1 rue de Germont, 76031 Rouen, France
| | - Michel Canis
- Department of Gynecologic Surgery, CHU Estaing Clermont Ferrand, 63058 Clermont Ferrand Cedex 1, France Faculté de medicine, ISIT - Université d'Auvergne, Place Henri Dunant, 63000 Clermont-Ferrand, France
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Spitz IM. Progesterone receptor antagonists and selective progesterone receptor modulators: proven and potential clinical applications. ACTA ACUST UNITED AC 2014. [DOI: 10.1586/17474108.2.2.227] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Merviel P, Lourdel E, Sanguin S, Gagneur O, Cabry R, Nasreddine A. [Interest of selective progesterone receptor modulators in endometriosis]. ACTA ACUST UNITED AC 2013; 41:524-8. [PMID: 23972920 DOI: 10.1016/j.gyobfe.2013.07.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Accepted: 06/10/2013] [Indexed: 10/26/2022]
Abstract
The SPRM (selective progesterone receptor modulators) are agonists and/or antagonists of progesterone receptor. They are responsible for anovulation, amenorrhea and a lower prostaglandin levels, which leads to an improvement in pain and regression of lesions in endometriosis. On the endometrium, a particular aspect, the progesterone receptor modulator-associated endometrial changes (PAEC), raises additional studies to verify its harmlessness. However, due to the lack of hypoestrogenism and metabolic effects with these drugs, it is very likely that the SPRM will in the near future an important place in the treatment of endometriosis.
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Affiliation(s)
- P Merviel
- Centre de gynécologie-obstétrique, centre d'AMP, CHU d'Amiens, 124, rue Camille-Desmoulins, 80054 Amiens cedex 1, France.
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Streuli I, de Ziegler D, Santulli P, Marcellin L, Borghese B, Batteux F, Chapron C. An update on the pharmacological management of endometriosis. Expert Opin Pharmacother 2013; 14:291-305. [PMID: 23356536 DOI: 10.1517/14656566.2013.767334] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Endometriosis is a common disease that causes pain symptoms and/or infertility in women in their reproductive years. The disease is characterised by the presence of endometrium-like tissue - glands and stroma - outside the uterine cavity. Different treatment options exist for endometriosis including medical and surgical treatments or a combination of the two approaches. The most commonly used medications are non-steroidal anti-inflammatory drugs, GnRH agonists, androgen derivatives such as danazol, combined oral contraceptive pills, progestogens and more recently the levonorgestrel intrauterine system. AREAS COVERED The authors review current medical treatments used for symptomatic endometriosis and also discuss new treatment approaches. The authors conducted a literature search for randomised controlled trials related to medical treatments of endometriosis in humans, searched the Cochrane library for reviews and also searched for registered trials that have not yet been published on ClinicalTrials.gov. EXPERT OPINION The medical treatment of endometriosis is effective at treating pain and preventing recurrence of disease after surgery. Remarkably, the oral contraceptive pill taken continuously is as effective as GnRH-a, while causing far less side-effects. Conversely, no treatment currently exists for enhancing fecundity in women whose infertility is associated with endometriosis. As all existing therapies of endometriosis are contraceptive, great efforts should be targeted at researching novel products that reduce the disease expression without shuttering ovulation.
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Affiliation(s)
- Isabelle Streuli
- Service de gynécologie, obstétrique et médecine de la reproduction, Groupe hospitalier du centre Cochin -- Broca -- Hôtel-Dieu, CHU Cochin, Paris, France
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Brandhagen BN, Tieszen CR, Ulmer TM, Tracy MS, Goyeneche AA, Telleria CM. Cytostasis and morphological changes induced by mifepristone in human metastatic cancer cells involve cytoskeletal filamentous actin reorganization and impairment of cell adhesion dynamics. BMC Cancer 2013; 13:35. [PMID: 23351358 PMCID: PMC3562154 DOI: 10.1186/1471-2407-13-35] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Accepted: 01/24/2013] [Indexed: 01/07/2023] Open
Abstract
Background Changes in cell shape and plasticity in cytoskeletal dynamics are critically involved in cell adhesion, migration, invasion and the overall process of metastasis. Previous work in our laboratory demonstrated that the synthetic steroid mifepristone inhibited the growth of highly metastatic cancer cells, while simultaneously causing striking changes in cellular morphology. Here we assessed whether such morphological alterations developed in response to cytostatic concentrations of mifepristone are reversible or permanent, involve rearrangement of cytoskeletal proteins, and/or affect the adhesive capacity of the cells. Methods Cancer cell lines of the ovary (SKOV-3), breast (MDA-MB-231), prostate (LNCaP), and nervous system (U87MG) were exposed to cytostatic concentrations of mifepristone and studied by phase-contrast microscopy. The transient or permanent nature of the cytostasis and morphological changes caused by mifepristone was assessed, as well as the rearrangement of cytoskeletal proteins. De-adhesion and adhesion assays were utilized to determine if mifepristone-arrested and morphologically dysregulated cells had abnormal de-adhesion/adhesion dynamics when compared to vehicle-treated controls. Results Mifepristone-treated cells displayed a long, thin, spindle-like shape with boundaries resembling those of loosely adhered cells. Growth arrest and morphology changes caused by mifepristone were reversible in SKOV-3, MDA-MB-231 and U87MG, but not in LNCaP cells that instead became senescent. All cancer cell types exposed to mifepristone displayed greatly increased actin ruffling in association with accelerated de-adhesion from the culture plate, and delayed adhesion capacity to various extracellular matrix components. Conclusions Cytostatic concentrations of mifepristone induced alterations in the cellular structure of a panel of aggressive, highly metastatic cancer cells of different tissues of origin. Such changes were associated with re-distribution of actin fibers that mainly form non-adhesive membrane ruffles, leading to dysregulated cellular adhesion capacity.
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Affiliation(s)
- BreeAnn N Brandhagen
- Division of Basic Biomedical Science, Sanford School of Medicine of The University of South Dakota, 414 East Clark Street, Vermillion, SD 57069, USA
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Novel progesterone receptor modulators: 4-Aryl-phenylsulfonamides. Bioorg Med Chem Lett 2012; 22:7119-22. [DOI: 10.1016/j.bmcl.2012.09.077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 09/17/2012] [Accepted: 09/21/2012] [Indexed: 11/21/2022]
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Chabbert-Buffet N, Pintiaux A, Bouchard P. The immninent dawn of SPRMs in obstetrics and gynecology. Mol Cell Endocrinol 2012; 358:232-43. [PMID: 22415029 DOI: 10.1016/j.mce.2012.02.021] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 02/21/2012] [Accepted: 02/22/2012] [Indexed: 12/30/2022]
Abstract
Selective progesterone receptor modulators (SPRMs) have been developed since the late 70s when mifepristone was first described. They act through nuclear progesterone receptors and can have agonist or mixed agonist antagonist actions depending on the cell and tissue. Mifepristone has unique major antagonist properties allowing its use for pregnancy termination. Ulipristal acetate has been marketed in 2009 for emergency contraception and has been recently approved for preoperative myoma treatment. Further perspectives for SPRMs use include long term estrogen free contraception, endometriosis treatment. However long term applications will be possible only after confirmation of endometrial safety.
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Affiliation(s)
- Nathalie Chabbert-Buffet
- Obstetrics, Gynecology and Reproductive Medicine Department, AP-HP, Hospital Tenon, UPMC Paris 06, Paris, France.
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Li X, Bao Y, Fang P, Chen Y, Qiao Z. Effect of mifepristone on COX-2 both in eutopic and ectopic endometrium in mouse endometriotic model. Arch Gynecol Obstet 2012; 286:939-46. [DOI: 10.1007/s00404-012-2379-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2011] [Accepted: 05/08/2012] [Indexed: 10/28/2022]
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Streuli I, de Ziegler D, Borghese B, Santulli P, Batteux F, Chapron C. New treatment strategies and emerging drugs in endometriosis. Expert Opin Emerg Drugs 2012; 17:83-104. [PMID: 22439891 DOI: 10.1517/14728214.2012.668885] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Introduction: Endometriosis, histologically defined as the presence of endometrium-like tissue - glands and stroma - that develops outside of the uterine cavity, is still an enigmatic disease responsible for pelvic pain and infertility. The current treatments of endometriosis are surgery and hormonal therapies that act by suppressing ovulation and/or directly on steroid receptors located in endometriotic lesions. Areas covered: New hormonal and non-hormonal therapies are being developed for the treatment of endometriosis-related pain. The authors review the state of advancement and the results of novel treatments studied in registered trials ( www.ClinicalTrials.gov ). Cellular signaling pathways activated in endometriotic cells, which constitute potential targets for future treatments, are also described. Expert opinion: Therapeutic research efforts should focus on identifying and testing substances capable of acting locally on the lesions themselves, without interfering with ovulation, in order to be efficacious on both pain symptoms and infertility.
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Affiliation(s)
- Isabelle Streuli
- Université Paris Descartes, Sorbonne Paris Cité, Faculté de médecine - Assistance Publique des Hôpitaux de Paris, CHU Cochin, Department of Obstetrics Gynaecology and Reproductive Medicine , Paris , France
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Cleve A, Fritzemeier KH, Haendler B, Heinrich N, Möller C, Schwede W, Wintermantel T. Pharmacology and clinical use of sex steroid hormone receptor modulators. Handb Exp Pharmacol 2012:543-587. [PMID: 23027466 DOI: 10.1007/978-3-642-30726-3_24] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Sex steroid receptors are ligand-triggered transcription factors. Oestrogen, progesterone and androgen receptors form, together with the glucocorticoid and mineralocorticoid receptors, a subgroup of the superfamily of nuclear receptors. They share a common mode of action, namely translating a hormone-i.e. a small-molecule signal-from outside to changes in gene expression and cell fate, and thereby represent "natural" pharmacological targets.For pharmacological therapy, these receptors have originally been addressed by hormones and synthetic hormone analogues in order to overcome pathologies related to deficiencies in the natural ligands. Another major use for female sex hormone receptor modulators is oral contraception, i.e. birth control.On the other side, blocking the activity of sex steroid receptors has become an established way to treat hormone-dependent malignancies, such as breast and prostate cancer.In this review, we will discuss how the experience gained from the classical pharmacology of these receptors and their molecular similarities led to new options for the treatment of gender-specific diseases and highlight recent progress in medicinal chemistry of sex hormone-modulating drugs.
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Affiliation(s)
- A Cleve
- Bayer Pharma AG, Muellerstr. 178, Berlin, Germany
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Bouchard P, Chabbert-Buffet N, Fauser BCJM. Selective progesterone receptor modulators in reproductive medicine: pharmacology, clinical efficacy and safety. Fertil Steril 2011; 96:1175-89. [PMID: 21944187 DOI: 10.1016/j.fertnstert.2011.08.021] [Citation(s) in RCA: 124] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Revised: 08/08/2011] [Accepted: 08/12/2011] [Indexed: 11/19/2022]
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Sakai H, Hirano T, Mori S, Fujii S, Masuno H, Kinoshita M, Kagechika H, Tanatani A. 6-arylcoumarins as novel nonsteroidal type progesterone antagonists: an example with receptor-binding-dependent fluorescence. J Med Chem 2011; 54:7055-65. [PMID: 21916484 DOI: 10.1021/jm2005404] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Various 6-arylcoumarin derivatives were designed and synthesized as candidate nonsteroidal type progesterone antagonists. 6-Bromocoumarin derivatives were prepared from the corresponding 4-substituted 2-acetoxy-5-bromobenzaldehyde by employing the Still-Gennari modification of the Horner-Wadsworth-Emmons olefination reaction and were converted to 6-arylcoumarins by means of Suzuki-Miyaura cross-coupling reactions. The biological activities of these coumarin derivatives were evaluated by means of alkaline phosphatase assay in the T47D human breast carcinoma cell line. Among the synthesized compounds, 36 (IC(50) = 0.12 μM) and 38 (IC(50) = 0.065 μM), bearing a five-membered heterocycle, showed potent PR antagonist activity. Competitive binding assay showed that compounds 8 and 34 have potent PR binding affinity. The fluorescence of compound 8 was dependent on the solvent properties and was increased in the presence of PR ligand binding domain. This property might be applicable to the development of fluorescence probes for studies on PR.
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Affiliation(s)
- Haruka Sakai
- Department of Chemistry, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
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A convenient enantioselective synthesis of 3-asymmetrically substituted oxindoles as progesterone receptor antagonists. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.05.120] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Guo SW, Liu M, Shen F, Liu X. Use of mifepristone to treat endometriosis: a review of clinical trials and trial-like studies conducted in China. ACTA ACUST UNITED AC 2011; 7:51-70. [PMID: 21175391 DOI: 10.2217/whe.10.79] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
China was the first country in the world that approved mifepristone (RU-486) for abortion. A total of 6 years after the report published in the Western world indicated that mifepristone may also be effective in treating endometriosis, the first paper on the same topic was published in China in 1997. Since then, over 160 studies on this topic have been published in China. We retrieved 104 papers on clinical trials and trial-like studies conducted in China evaluating the use of mifepristone to treat endometriosis that were published in the last 11 years. We found that the quality of these studies is well below an acceptable level, making it difficult to judge whether mifepristone is truly efficacious. There are intriguing signs that these studies, as a whole, have serious anomalies. The areas that are glaringly deficient are informed consent, choice of outcome measures, the evaluation of outcome measures, data analysis and randomization. The uniformly low quality is disquieting, given the large quantity of studies, the enormous amount of resource and energy put into these studies and, above all, the weighty issue of treatment efficacy that concerns each and every patient with endometriosis. Equally disquieting are the low-quality repetition, the absence of a critical, systematic review on the subject, the lack of suggestions for multicenter clinical trials and the seemingly unnecessary duplication of clinical trials without due informed consent. In view of this, it may be time to institute changes in attitude and practice, and to change education and training programs in the methodology of clinical trials in obstetrics and gynecology research in China.
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Affiliation(s)
- Sun-Wei Guo
- Obstetrics & Gynecology Hospital, Fudan University Shanghai College of Medicine, 419 Fangxie Road, Shanghai 200011, China.
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Bungay PJ, Tweedy S, Howe DC, Gibson KR, Jones HM, Mount NM. Preclinical and clinical pharmacokinetics of PF-02413873, a nonsteroidal progesterone receptor antagonist. Drug Metab Dispos 2011; 39:1396-405. [PMID: 21543556 DOI: 10.1124/dmd.110.037234] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The recently discovered selective nonsteroidal progesterone receptor (PR) antagonist 4-[3-cyclopropyl-1-(methylsulfonylmethyl)-5-methyl-1H-pyrazol-4-yl]oxy-2,6-dimethylbenzonitrile (PF-02413873) was characterized in metabolism studies in vitro, in preclinical pharmacokinetics in rat and dog, and in an initial pharmacokinetic study in human volunteers. Clearance (CL) of PF-02413873 was found to be high in rat (84 ml · min(-1) · kg(-1)) and low in dog (3.8 ml · min(-1) · kg(-1)), consistent with metabolic stability determined in liver microsomes and hepatocytes in these species. In human, CL was low in relation to hepatic blood flow, consistent with metabolic stability in human in vitro systems, where identified metabolites suggested predominant cytochrome P450 (P450)-catalyzed oxidative metabolism. Prediction of CL using intrinsic CL determined in human liver microsomes (HLM), recombinant human P450 enzymes, and single species scaling (SSS) from pharmacokinetic studies showed that dog SSS and HLM scaling provided the closest estimates of CL of PF-02413873 in human. These CL estimates were combined with a physiologically based pharmacokinetic (PBPK) model to predict pharmacokinetic profiles after oral suspension administration of PF-02413873 in fasted and fed states in human. Predicted plasma concentration versus time profiles were found to be similar to those observed in human over the PF-02413873 dose range 50 to 500 mg and captured the enhanced exposure in fed subjects. This case study of a novel nonsteroidal PR antagonist underlines the utility of PBPK modeling techniques in guiding prediction confidence and design of early clinical trials of novel chemical agents.
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Affiliation(s)
- Peter J Bungay
- Pharmacokinetics, Dynamics & Metabolism, Pfizer Worldwide Research & Development, Ramsgate Road, Sandwich, Kent CT13 9NJ, UK.
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45
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46
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Stratton P, Berkley KJ. Chronic pelvic pain and endometriosis: translational evidence of the relationship and implications. Hum Reprod Update 2010; 17:327-46. [PMID: 21106492 DOI: 10.1093/humupd/dmq050] [Citation(s) in RCA: 248] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Many clinicians and patients believe that endometriosis-associated pain is due to the lesions. Yet causality remains an enigma, because pain symptoms attributed to endometriosis occur in women without endometriosis and because pain symptoms and severity correlate poorly with lesion characteristics. Most research and reviews focus on the lesions, not the pain. This review starts with the recognition that the experience of pain is determined by the central nervous system (CNS) and focuses on the pain symptoms. METHODS Comprehensive searches of Pubmed, Medline and Embase were conducted for current basic and clinical research on chronic pelvic pain and endometriosis. The information was mutually interpreted by a basic scientist and a clinical researcher, both in the field of endometriosis. The goal was to develop new ways to conceptualize how endometriosis contributes to pain symptoms in the context of current treatments and the reproductive tract. RESULTS Endometriotic lesions can develop their own nerve supply, thereby creating a direct and two-way interaction between lesions and the CNS. This engagement provides a mechanism by which the dynamic and hormonally responsive nervous system is brought directly into play to produce a variety of individual differences in pain that can, in some women, become independent of the disease itself. CONCLUSIONS Major advances in improving understanding and alleviating pain in endometriosis will likely occur if the focus changes from lesions to pain. In turn, how endometriosis affects the CNS would be best examined in the context of mechanisms underlying other chronic pain conditions.
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Affiliation(s)
- Pamela Stratton
- Program in Reproductive and Adult Endocrinology, Eunice Kennedy Shriver National Institute of Child Health and Development, National Institutes of Health, Bldg. 10, CRC, RM 1-3140, 10 Center Dr. MSC 1109, Bethesda, MD 20892-1109 USA.
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47
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Spitz IM. Mifepristone: where do we come from and where are we going? Contraception 2010; 82:442-52. [DOI: 10.1016/j.contraception.2009.12.012] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2009] [Accepted: 12/15/2009] [Indexed: 01/08/2023]
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Im A, Appleman LJ. Mifepristone: pharmacology and clinical impact in reproductive medicine, endocrinology and oncology. Expert Opin Pharmacother 2010; 11:481-8. [PMID: 20102310 DOI: 10.1517/14656560903535880] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
IMPORTANCE OF THE FIELD Mifepristone is a synthetic selective progesterone-receptor modulator (SPRM) that is widely used around the globe in the field of reproductive medicine. At present mifepristone is approved in a number of countries for early termination of pregnancy (TOP), cervical dilatation before surgical TOP, and management of early embryonic loss or fetal death. A number of new clinical applications are being developed in gynecology, endocrinology and oncology. Mifepristone has also served as an invaluable tool in the study of steroid hormone biology. AREAS COVERED IN THIS REVIEW Current indications for mifepristone are reviewed. New applications for mifepristone under clinical investigation are discussed. In addition, the unique molecular and cellular effects of mifepristone are described. WHAT THE READER WILL GAIN The reader will understand the mechanisms of action of mifepristone and the underlying steroid hormone biology. The reader will know the approved clinical indications for mifepristone and appreciate the ongoing basic and clinical research into new applications. TAKE HOME MESSAGE Mifepristone is the first-discovered and still most widely used antiprogestin. It has several indications in reproductive medicine and is under investigation for a variety of potential applications in other fields of medicine. The molecular and cellular effects of mifepristone illuminate important aspects of steroid hormone biology.
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Affiliation(s)
- Annie Im
- University of Pittsburgh, Division of Hematology/Oncology, Department of Medicine, 5150 Centre Avenue, Pittsburgh, PA 15232, USA
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A novel mifepristone-loaded implant for long-term treatment of endometriosis: in vitro and in vivo studies. Eur J Pharm Sci 2010; 39:421-7. [PMID: 20132884 DOI: 10.1016/j.ejps.2010.01.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2009] [Revised: 11/24/2009] [Accepted: 01/26/2010] [Indexed: 11/20/2022]
Abstract
The objective of this study was to prepare a novel mifepristone-loaded PCL/Pluronic F68 implant to achieve long-term treatment of endometriosis. PCL/Pluronic F68 compound (90/10, w/w) with viscosity average molecular weight of 65,000 was successfully synthesized. The end-capped Pluronic F68 was incorporated in PCL matrixes as molecular dispersion without forming a copolymer. The mifepristone-loaded implant made of PCL/Pluronic F68 compound was a cylindrical capsule with an outer diameter of 2.5mm and an inner diameter of 2.2mm. The surface of PCL/Pluronic F68 compound appears porous because Pluronic F68 which is water soluble could leach out due to the water phase. Drug loading of 0.75-, 1.5- and 3.0-cm length implants was 3.05+/-0.18, 6.06+/-0.41 and 11.87+/-0.39mg, respectively. A sustained mifepristone release rate without obvious initial burst and later decline over a period of 180d was observed. The cumulative drug release showed a linear relationship with time, indicating that mifepristone release from the implants followed zero-order kinetics (R(2)>0.99). The data showed that the C(max) and AUC(0-inf) were proportional to imlant length and dose, and all groups reached plasma C(max) at about the same time (approximately 7d) and had similar T(1/2) (approximately 150d) and MRT (approximately 220d). There were obvious inhibitory effects on the growth of endometrial explants in Wister rats in a dose-dependent manner after administration of mifepristone-loaded implants with implant length from 1.5 to 9.0cm for 1-3 months. However, mifepristone-loaded implants with implant length of 12.0cm had no better inhibitory effects on the growth of endometrium when compared with the implants with implant length of 9.0cm (P>0.05). In conclusion, subcutaneous implantation of mifepristone-loaded PCL/Pluronic F68 capsules was proven an effective means for long-term treatment of chronic endometriosis.
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Ellmann S, Sticht H, Thiel F, Beckmann MW, Strick R, Strissel PL. Estrogen and progesterone receptors: from molecular structures to clinical targets. Cell Mol Life Sci 2009; 66:2405-26. [PMID: 19333551 PMCID: PMC11115849 DOI: 10.1007/s00018-009-0017-3] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2008] [Revised: 02/19/2009] [Accepted: 03/06/2009] [Indexed: 01/24/2023]
Abstract
Research involving estrogen and progesterone receptors (ER and PR) have greatly contributed to our understanding of cell signaling and transcriptional regulation. In addition to the classical ER and PR nuclear actions, new signaling pathways have recently been identified due to ER and PR association with cell membranes and signal transduction proteins. Bio-informatics has unveiled how ER and PR recognize their ligands, selective modulators and co-factors, which has helped to implement them as key targets in the treatment of benign and malignant tumors. Knowledge regarding ER and PR is vast and complex; therefore, this review will focus on their isoforms, signaling pathways, co-activators and co-repressors, which lead to target gene regulation. Moreover it will highlight ER and PR involvement in benign and malignant diseases as well as pharmacological substances influencing cell signaling and provide established and new structural insights into the mechanism of activation and inhibition of these receptors.
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MESH Headings
- Amino Acid Sequence
- Animals
- Computational Biology
- Estradiol/chemistry
- Estradiol/metabolism
- Humans
- Ligands
- Models, Molecular
- Molecular Sequence Data
- Phylogeny
- Progesterone/chemistry
- Progesterone/metabolism
- Protein Isoforms/chemistry
- Protein Isoforms/genetics
- Protein Isoforms/metabolism
- Protein Structure, Tertiary
- Receptors, Estrogen/chemistry
- Receptors, Estrogen/classification
- Receptors, Estrogen/genetics
- Receptors, Estrogen/metabolism
- Receptors, Progesterone/chemistry
- Receptors, Progesterone/classification
- Receptors, Progesterone/genetics
- Receptors, Progesterone/metabolism
- Receptors, Steroid/agonists
- Receptors, Steroid/antagonists & inhibitors
- Selective Estrogen Receptor Modulators/chemistry
- Selective Estrogen Receptor Modulators/metabolism
- Sequence Alignment
- Signal Transduction/physiology
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Affiliation(s)
- Stephan Ellmann
- Department of Gynaecology and Obstetrics, Laboratory for Molecular Medicine, University-Clinic Erlangen, Universitaetsstr. 21-23, 91054 Erlangen, Germany
| | - Heinrich Sticht
- Department of Bioinformatics, Institute of Biochemistry, University of Erlangen-Nuremberg, Fahrstr. 17, 91054 Erlangen, Germany
| | - Falk Thiel
- Department of Gynaecology and Obstetrics, Laboratory for Molecular Medicine, University-Clinic Erlangen, Universitaetsstr. 21-23, 91054 Erlangen, Germany
| | - Matthias W. Beckmann
- Department of Gynaecology and Obstetrics, Laboratory for Molecular Medicine, University-Clinic Erlangen, Universitaetsstr. 21-23, 91054 Erlangen, Germany
| | - Reiner Strick
- Department of Gynaecology and Obstetrics, Laboratory for Molecular Medicine, University-Clinic Erlangen, Universitaetsstr. 21-23, 91054 Erlangen, Germany
| | - Pamela L. Strissel
- Department of Gynaecology and Obstetrics, Laboratory for Molecular Medicine, University-Clinic Erlangen, Universitaetsstr. 21-23, 91054 Erlangen, Germany
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