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Carbone DP, Ciuleanu TE, Schenker M, Cobo M, Bordenave S, Juan-Vidal O, Menezes J, Reinmuth N, Richardet E, Cheng Y, Mizutani H, Felip E, Zurawski B, Alexandru A, Paz-Ares L, Lu S, John T, Zhang X, Mahmood J, Hu N, De T, Santi I, Penrod JR, Yuan Y, Lee A, Reck M. Four-year clinical update and treatment switching-adjusted outcomes with first-line nivolumab plus ipilimumab with chemotherapy for metastatic non-small cell lung cancer in the CheckMate 9LA randomized trial. J Immunother Cancer 2024; 12:e008189. [PMID: 38346853 PMCID: PMC10862253 DOI: 10.1136/jitc-2023-008189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/27/2023] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND In CheckMate 9LA, nivolumab plus ipilimumab with chemotherapy prolonged overall survival (OS) versus chemotherapy regardless of tumor PD-L1 expression or histology. We report updated efficacy and safety in all randomized patients with a minimum 4-year follow-up and an exploratory treatment-switching adjustment analysis in all treated patients who received chemotherapy and subsequent immunotherapy. METHODS Adults with stage IV/recurrent non-small cell lung cancer (NSCLC), no sensitizing EGFR/ALK alterations, and ECOG performance status ≤1 were randomized 1:1 to nivolumab 360 mg every 3 weeks plus ipilimumab 1 mg/kg every 6 weeks with chemotherapy (two cycles) or chemotherapy (four cycles, with optional maintenance pemetrexed for the nonsquamous population). Assessments included OS, progression-free survival, and objective response rate. Exploratory analyses included efficacy by tumor PD-L1 expression and histology and in patients who discontinued nivolumab plus ipilimumab with chemotherapy due to treatment-related adverse events (TRAEs), and a treatment-switching adjustment analysis using inverse probability of censoring weighting. RESULTS With a 47.9-month minimum follow-up for OS, nivolumab plus ipilimumab with chemotherapy continued to prolong OS over chemotherapy in all randomized patients (HR 0.74, 95% CI 0.63 to 0.87; 4-year OS rate: 21% versus 16%), regardless of tumor PD-L1 expression (HR (95% CI): PD-L1<1%, 0.66 (0.50 to 0.86) and ≥1%, 0.74 (0.60 to 0.92)) or histology (squamous, 0.64 (0.48 to 0.84) and non-squamous, 0.80 (0.66 to 0.97)). In patients who discontinued all components of nivolumab plus ipilimumab with chemotherapy due to TRAEs (n=61), the 4-year OS rate was 41%. With treatment-switching adjustment for the 36% of patients receiving subsequent immunotherapy in the chemotherapy arm, the estimated HR of nivolumab plus ipilimumab with chemotherapy versus chemotherapy was 0.66 (95% CI 0.55 to 0.80). No new safety signals were observed. CONCLUSIONS In this 4-year update, patients treated with nivolumab plus ipilimumab with chemotherapy continued to have long-term, durable efficacy benefit over chemotherapy regardless of tumor PD-L1 expression and/or histology. A greater estimated relative OS benefit was observed after adjustment for subsequent immunotherapy use in the chemotherapy arm. These results further support nivolumab plus ipilimumab with chemotherapy as a first-line treatment for patients with metastatic/recurrent NSCLC, including those with tumor PD-L1<1% or squamous histology, populations with high unmet needs.
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Affiliation(s)
- David P Carbone
- Division of Medical Oncology and the Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Tudor-Eliade Ciuleanu
- Department of Medical Oncology, Institutul Oncologic Prof Dr Ion Chiricută and University of Medicine and Pharmacy Iuliu Haţieganu, Cluj-Napoca, Romania
| | - Michael Schenker
- Department of Medical Oncology, SF Nectarie Oncology Center, Craiova, Romania
| | - Manuel Cobo
- Department of Medical Oncology, Unidad de Gestión Clínica Intercentros de Oncología Médica, Hospitales Universitarios Regional y Virgen de la Victoria, IBIMA, Málaga, Spain
| | | | - Oscar Juan-Vidal
- Department of Medical Oncology, Hospital Universitario La Fe, Valencia, Spain
| | - Juliana Menezes
- Department of Oncology, Hospital Nossa Senhora da Conceição, Porto Alegre, Brazil
| | - Niels Reinmuth
- Department of Oncology, Asklepios Lung Clinic, German Center for Lung Research, Munich-Gauting, Germany
| | - Eduardo Richardet
- Department of Clinical Oncology, IONC Instituto Oncológico de Córdoba, Córdoba, Argentina
| | - Ying Cheng
- Department of Oncology, Jilin Cancer Hospital, Changchun, Jilin, China
| | - Hideaki Mizutani
- Department of Thoracic Oncology, Saitama Cancer Center, Saitama, Japan
| | - Enriqueta Felip
- Medical Oncology Service, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Bogdan Zurawski
- Chemotherapy Department, Ambulatorium Chemioterapii, Bydgoszcz, Poland
| | - Aurelia Alexandru
- Department of Oncology, Institute of Oncology Prof Dr Alexandru Trestioreanu Bucha, Bucharest, Romania
| | - Luis Paz-Ares
- Medical Oncology Department, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Madrid, Spain
| | - Shun Lu
- Department of Medical Oncology, Shanghai Lung Cancer Center, Shanghai Chest Hospital, Shanghai JiaoTong University, Shanghai, China
| | - Thomas John
- Medical Oncology Department, Austin Hospital, Heidelberg, Victoria, Australia
| | - Xiaoqing Zhang
- Global Drug Development, Oncology Clinical Development, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Javed Mahmood
- Global Drug Development, Oncology Clinical Development, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Nan Hu
- Global Biometrics and Data Sciences, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Tuli De
- Parexel, Billerica, Massachusetts, USA
| | | | - John R Penrod
- Global Drug Development, Oncology Clinical Development, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Yong Yuan
- Global Drug Development, Oncology Clinical Development, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Adam Lee
- Global Drug Development, Oncology Clinical Development, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Martin Reck
- Department of Thoracic Oncology, Airway Research Center North, German Center for Lung Research, Lung Clinic, Grosshansdorf, Germany
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Masuda J, Sakai H, Tsurutani J, Tanabe Y, Masuda N, Iwasa T, Takahashi M, Futamura M, Matsumoto K, Aogi K, Iwata H, Hosonaga M, Mukohara T, Yoshimura K, Imamura CK, Miura S, Yamochi T, Kawabata H, Yasojima H, Tomioka N, Yoshimura K, Takano T. Efficacy, safety, and biomarker analysis of nivolumab in combination with abemaciclib plus endocrine therapy in patients with HR-positive HER2-negative metastatic breast cancer: a phase II study (WJOG11418B NEWFLAME trial). J Immunother Cancer 2023; 11:e007126. [PMID: 37709297 PMCID: PMC10503337 DOI: 10.1136/jitc-2023-007126] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2023] [Indexed: 09/16/2023] Open
Abstract
BACKGROUND Hormone receptor (HR)-positive breast cancer is a disease for which no immune checkpoint inhibitors have shown promise as effective therapies. Cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitors synergistically increased the effectiveness of antiprogrammed cell death protein-1 (anti-PD-1)/programmed death-ligand 1 (PD-L1) antibodies in preclinical studies. METHODS This non-randomized, multicohort, phase II study evaluated the efficacy and safety of the anti-PD-1 antibody nivolumab 240 mg administered every 2 weeks in combination with the CDK4/6 inhibitor abemaciclib 150 mg twice daily and either fulvestrant (FUL) or letrozole (LET) as a first-line or second-line treatment for HR-positive HER2-negative metastatic breast cancer. The primary end point was the objective response rate (ORR), and secondary end points were toxicity, progression-free survival, and overall survival. Blood, tissue, and fecal samples were collected at multiple points for correlative studies to evaluate immunity biomarkers. RESULTS From June 2019 to early study termination due to safety concerns on July 2020, 17 patients were enrolled (FUL: n=12, LET: n=5). One patient with a prior treatment history in the FUL cohort was excluded. ORRs were 54.5% (6/11) and 40.0% (2/5) in the FUL and LET cohorts, respectively. Treatment-emergent (TE) adverse events (AEs) of grade ≥3 occurred in 11 (92%) and 5 (100%) patients in the FUL and LET cohorts, respectively. The most common grade ≥3 TEAEs were neutropenia (7 (58.3%) and 3 (60.0%) in the FUL and LET cohorts, respectively), followed by alanine aminotransferase elevation (5 (41.6%) and 4 (80.0%)). One treatment-related death from interstitial lung disease occurred in the LET cohort. Ten patients developed liver-related grade ≥3 AEs. Liver biopsy specimens from 3 patients showed hepatitis characterized by focal necrosis with predominant CD8+ lymphocyte infiltration. Marked elevation of tumor necrosis factor-related cytokines and interleukin-11, and a decrease in peripheral regulatory T cells (Tregs), were observed in patients with hepatotoxicity. These findings suggest that treatment-related toxicities were immune-related AEs likely caused by proinflammatory cytokine production and suppression of Treg proliferation due to the addition of abemaciclib to nivolumab therapy. CONCLUSIONS Although the combination of nivolumab and abemaciclib was active, it caused severe and prolonged immune-related AEs. TRIAL REGISTRATION NUMBER JapicCTI-194782, jRCT2080224706, UMIN000036970.
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Affiliation(s)
- Jun Masuda
- Department of Breast Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Koto-ku, Tokyo, Japan
- Department of Medical Oncology, Toranomon Hospital, Minato-ku, Tokyo, Japan
| | - Hitomi Sakai
- Advanced Cancer Translational Research Institute, Showa University, Shinagawa-ku, Tokyo, Japan
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka, Japan
| | - Junji Tsurutani
- Advanced Cancer Translational Research Institute, Showa University, Shinagawa-ku, Tokyo, Japan
| | - Yuko Tanabe
- Department of Medical Oncology, Toranomon Hospital, Minato-ku, Tokyo, Japan
| | - Norikazu Masuda
- Department of Breast and Endocrine Surgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
- Department of Surgery, Breast Oncology, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Tsutomu Iwasa
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka, Japan
| | - Masato Takahashi
- Department of Breast Surgery, National Hospital Organization Hokkaido Cancer Center, Sapporo, Hokkaido, Japan
- Department of Breast Surgery, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Manabu Futamura
- Department of Surgical Oncology, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Koji Matsumoto
- Department of Medical Oncology, Hyogo Cancer Center, Akashi, Hyogo, Japan
| | - Kenjiro Aogi
- Department of Breast Surgery, National Hospital Organization Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - Hiroji Iwata
- Department of Breast Oncology, Aichi Cancer Center, Nagoya, Aichi, Japan
| | - Mari Hosonaga
- Department of Breast Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Koto-ku, Tokyo, Japan
| | - Toru Mukohara
- Department of Medical Oncology, National Cancer Center-Hospital East, Kashiwa, Chiba, Japan
| | - Kiyoshi Yoshimura
- Department of Clinical Immuno-oncology, Clinical Research Institute for Clinical Pharmacology and Therapeutics, Showa University, Shinagawa-ku, Tokyo, Japan
| | - Chiyo K Imamura
- Advanced Cancer Translational Research Institute, Showa University, Shinagawa-ku, Tokyo, Japan
| | - Sakiko Miura
- Department of Pathology, Showa University, Shinagawa-ku, Tokyo, Japan
| | - Toshiko Yamochi
- Department of Pathology, Showa University, Shinagawa-ku, Tokyo, Japan
| | - Hidetaka Kawabata
- Department of Breast and Endocrine Surgery, Toranomon Hospital, Minato-ku, Tokyo, Japan
| | - Hiroyuki Yasojima
- Department of Surgery, Breast Oncology, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Nobumoto Tomioka
- Department of Breast Surgery, National Hospital Organization Hokkaido Cancer Center, Sapporo, Hokkaido, Japan
| | - Kenichi Yoshimura
- Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, Japan
| | - Toshimi Takano
- Department of Breast Medical Oncology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Koto-ku, Tokyo, Japan
- Department of Medical Oncology, Toranomon Hospital, Minato-ku, Tokyo, Japan
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3
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Atkins MB, Abu-Sbeih H, Ascierto PA, Bishop MR, Chen DS, Dhodapkar M, Emens LA, Ernstoff MS, Ferris RL, Greten TF, Gulley JL, Herbst RS, Humphrey RW, Larkin J, Margolin KA, Mazzarella L, Ramalingam SS, Regan MM, Rini BI, Sznol M. Maximizing the value of phase III trials in immuno-oncology: A checklist from the Society for Immunotherapy of Cancer (SITC). J Immunother Cancer 2022; 10:jitc-2022-005413. [PMID: 36175037 PMCID: PMC9528604 DOI: 10.1136/jitc-2022-005413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/20/2022] [Indexed: 11/03/2022] Open
Abstract
The broad activity of agents blocking the programmed cell death protein 1 and its ligand (the PD-(L)1 axis) revolutionized oncology, offering long-term benefit to patients and even curative responses for tumors that were once associated with dismal prognosis. However, only a minority of patients experience durable clinical benefit with immune checkpoint inhibitor monotherapy in most disease settings. Spurred by preclinical and correlative studies to understand mechanisms of non-response to the PD-(L)1 antagonists and by combination studies in animal tumor models, many drug development programs were designed to combine anti-PD-(L)1 with a variety of approved and investigational chemotherapies, tumor-targeted therapies, antiangiogenic therapies, and other immunotherapies. Several immunotherapy combinations improved survival outcomes in a variety of indications including melanoma, lung, kidney, and liver cancer, among others. This immunotherapy renaissance, however, has led to many combinations being advanced to late-stage development without definitive predictive biomarkers, limited phase I and phase II data, or clinical trial designs that are not optimized for demonstrating the unique attributes of immune-related antitumor activity-for example, landmark progression-free survival and overall survival. The decision to activate a study at an individual site is investigator-driven, and generalized frameworks to evaluate the potential for phase III trials in immuno-oncology to yield positive data, particularly to increase the number of curative responses or otherwise advance the field have thus far been lacking. To assist in evaluating the potential value to patients and the immunotherapy field of phase III trials, the Society for Immunotherapy of Cancer (SITC) has developed a checklist for investigators, described in this manuscript. Although the checklist focuses on anti-PD-(L)1-based combinations, it may be applied to any regimen in which immune modulation is an important component of the antitumor effect.
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Affiliation(s)
- Michael B Atkins
- Georgetown Lombardi Comprehensive Cancer Center, Washington, District of Columbia, USA
| | | | - Paolo A Ascierto
- Istituto Nazionale Tumori IRCCS Fondazione "G Pascale", Napoli, Italy
| | - Michael R Bishop
- The David and Etta Jonas Center for Cellular Therapy, University of Chicago, Chicago, Illinois, USA
| | - Daniel S Chen
- Engenuity Life Sciences, Burlingame, California, USA
| | - Madhav Dhodapkar
- Center for Cancer Immunology, Winship Cancer Institute at Emory University, Atlanta, Georgia, USA
| | - Leisha A Emens
- UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Marc S Ernstoff
- DCTD/DTP-IOB, ImmunoOncology Branch, NCI, Bethesda, Maryland, USA
| | | | - Tim F Greten
- Gastrointestinal Malignancies Section, National Cancer Institue CCR Liver Program, Bethesda, Maryland, USA
| | - James L Gulley
- Center for Immuno-Oncology, National Cancer Institute, Bethesda, Maryland, USA
| | | | | | | | - Kim A Margolin
- St. John's Cancer Institute, Santa Monica, California, USA
| | - Luca Mazzarella
- Experimental Oncology, New Drug Development, European Instititue of Oncology IRCCS, Milan, Italy
| | | | - Meredith M Regan
- Dana-Farber/Harvard Cancer Center, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | | | - Mario Sznol
- Yale School of Medicine, New Haven, Connecticut, USA
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4
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Motzer RJ, Escudier B, McDermott DF, Arén Frontera O, Melichar B, Powles T, Donskov F, Plimack ER, Barthélémy P, Hammers HJ, George S, Grünwald V, Porta C, Neiman V, Ravaud A, Choueiri TK, Rini BI, Salman P, Kollmannsberger CK, Tykodi SS, Grimm MO, Gurney H, Leibowitz-Amit R, Geertsen PF, Amin A, Tomita Y, McHenry MB, Saggi SS, Tannir NM. Survival outcomes and independent response assessment with nivolumab plus ipilimumab versus sunitinib in patients with advanced renal cell carcinoma: 42-month follow-up of a randomized phase 3 clinical trial. J Immunother Cancer 2020; 8:e000891. [PMID: 32661118 PMCID: PMC7359377 DOI: 10.1136/jitc-2020-000891] [Citation(s) in RCA: 144] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/22/2020] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The extent to which response and survival benefits with immunotherapy-based regimens persist informs optimal first-line treatment options. We provide long-term follow-up in patients with advanced renal cell carcinoma (aRCC) receiving first-line nivolumab plus ipilimumab (NIVO+IPI) versus sunitinib (SUN) in the phase 3 CheckMate 214 trial. Survival, response, and safety outcomes with NIVO+IPI versus SUN were assessed after a minimum of 42 months of follow-up. METHODS Patients with aRCC were enrolled from October 16, 2014, through February 23, 2016. Patients stratified by International Metastatic Renal Cell Carcinoma Database Consortium (IMDC) risk and region were randomized to nivolumab (3 mg/kg) plus ipilimumab (1 mg/kg) every 3 weeks for four doses, followed by nivolumab (3 mg/kg) every 2 weeks; or SUN (50 mg) once per day for 4 weeks (6-week cycle). Primary endpoints: overall survival (OS), progression-free survival (PFS), and objective response rate (ORR) per independent radiology review committee in IMDC intermediate-risk/poor-risk patients. Secondary endpoints: OS, PFS, and ORR in the intention-to-treat (ITT) population and safety. Favorable-risk patient outcomes were exploratory. RESULTS Among ITT patients, 550 were randomized to NIVO+IPI (425 intermediate/poor risk; 125 favorable risk) and 546 to SUN (422 intermediate/poor risk; 124 favorable risk). Among intermediate-risk/poor-risk patients, OS (HR, 0.66; 95% CI, 0.55-0.80) and PFS (HR, 0.75; 95% CI, 0.62-0.90) benefits were observed, and ORR was higher (42.1% vs 26.3%) with NIVO+IPI versus SUN. In ITT patients, both OS benefits (HR, 0.72; 95% CI, 0.61-0.86) and higher ORR (39.1% vs 32.6%) were observed with NIVO+IPI versus SUN. In favorable-risk patients, HR for death was 1.19 (95% CI, 0.77-1.85) and ORR was 28.8% with NIVO+IPI versus 54.0% with SUN. Duration of response was longer (HR, 0.46-0.54), and more patients achieved complete response (10.1%-12.8% vs 1.4%-5.6%) with NIVO+IPI versus SUN regardless of risk group. The incidence of treatment-related adverse events was consistent with previous reports. CONCLUSIONS NIVO+IPI led to improved efficacy outcomes versus SUN in both intermediate-risk/poor-risk and ITT patients that were maintained through 42 months' minimum follow-up. A complete response rate >10% was achieved with NIVO+IPI regardless of risk category, with no new safety signals detected in either arm. These results support NIVO+IPI as a first-line treatment option with the potential for durable response. TRIAL REGISTRATION NUMBER NCT02231749.
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Affiliation(s)
- Robert J Motzer
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Bernard Escudier
- Department of Medical Oncology, Gustave Roussy, Villejuif, France
| | - David F McDermott
- Department of Medicine, Beth Israel Deaconess Medical Center, Dana-Farber/Harvard Cancer Center, Boston, Massachusetts, USA
| | | | - Bohuslav Melichar
- Department of Oncology, Palacky University, and University Hospital Olomouc, Olomouc, Czech Republic
| | - Thomas Powles
- Department of Genitourinary Oncology, Barts Cancer Institute, Cancer Research UK Experimental Cancer Medicine Centre, Queen Mary University of London, Royal Free National Health Service Trust, London, UK
| | - Frede Donskov
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - Elizabeth R Plimack
- Department of Hematology/Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania, USA
| | - Philippe Barthélémy
- Department of Medical Oncology, Hôpitaux Universitaires de Strasbourg / ICANS, Strasbourg, France
| | - Hans J Hammers
- Division of Hematology and Oncology, UT Southwestern Kidney Cancer Program, Dallas, Texas, USA
| | - Saby George
- Divisions of Medical Oncology and Urology, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA
| | - Viktor Grünwald
- Interdisciplinary Genitourinary Oncology, West German Cancer Center Essen, Essen, Germany
- Clinic for Medical Oncology and Clinic for Urology, Essen University Hospital, Essen, Germany
| | - Camillo Porta
- Department of Internal Medicine, University of Pavia, Pavia, Italy
| | - Victoria Neiman
- Davidoff Cancer Center, Rabin Medical Center, Petah Tikva, Israel
- Tel Aviv University, Tel Aviv, Israel
| | - Alain Ravaud
- Department of Medical Oncology, Bordeaux University Hospital, Bordeaux, France
| | - Toni K Choueiri
- Department of Medical Oncology, Dana-Farber Cancer Institute, The Lank Center for Genitourinary Oncology, Boston, Massachusetts, USA
| | - Brian I Rini
- Department of Hematology and Oncology, Cleveland Clinic Taussig Cancer Institute, Cleveland, Ohio, USA
- Dr. Rini is now with the Department of Medicine, Vanderbilt-Ingram Cancer Center, Nashville, Tennessee, USA
| | - Pamela Salman
- Instituto Oncológico Fundación Arturo López Pérez, Santiago, Chile
| | | | - Scott S Tykodi
- Department of Medicine, Division of Medical Oncology, University of Washington, Seattle, Washington, USA
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | - Howard Gurney
- Department of Medical Oncology, Westmead Hospital, Sydney, New South Wales, Australia
- Department of Medicine, Health and Human Sciences, Macquarie University, Sydney, New South Wales, Australia
| | - Raya Leibowitz-Amit
- Oncology Institute, Shamir Medical Center, Be'er Yaakov, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Poul F Geertsen
- Department of Oncology, Herlev Hospital, Copenhagen, Denmark
| | - Asim Amin
- Department of Medical Oncology, Levine Cancer Institute, Atrium Health, Charlotte, North Carolina, USA
| | - Yoshihiko Tomita
- Departments of Urology and Molecular Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | | | | | - Nizar M Tannir
- Department of Genitourinary Medical Oncology, MD Anderson Cancer Center, University of Texas, Houston, Texas, USA
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5
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Abstract
Since the discovery of proprotein convertase subtilisin kexin 9 (PCSK9) in 2003, this PC has attracted a lot of attention from the scientific community and pharmaceutical companies. Secreted into the plasma by the liver, the proteinase K-like serine protease PCSK9 binds the low-density lipoprotein (LDL) receptor at the surface of hepatocytes, thereby preventing its recycling and enhancing its degradation in endosomes/lysosomes, resulting in reduced LDL-cholesterol clearance. Surprisingly, in a nonenzymatic fashion, PCSK9 enhances the intracellular degradation of all its target proteins. Rare gain-of-function PCSK9 variants lead to higher levels of LDL-cholesterol and increased risk of cardiovascular disease; more common loss-of-function PCSK9 variants are associated with reductions in both LDL-cholesterol and risk of cardiovascular disease. It took 9 years to elaborate powerful new PCSK9-based therapeutic approaches to reduce circulating levels of LDL-cholesterol. Presently, PCSK9 monoclonal antibodies that inhibit its function on the LDL receptor are evaluated in phase III clinical trials. This review will address the biochemical, genetic, and clinical aspects associated with PCSK9's biology and pathophysiology in cells, rodent and human, with emphasis on the clinical benefits of silencing the expression/activity of PCSK9 as a new modality in the treatment of hypercholesterolemia and associated pathologies.
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Affiliation(s)
- Nabil G Seidah
- From the Laboratories of Biochemical Neuroendocrinology (N.G.S., Z.A.) and Functional Endoproteolysis (M.C., M.M.), Institut de Recherches Cliniques de Montréal, affiliated to the Université de Montréal, Montréal, Quebec, Canada; and Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada (M.C., M.M.)
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