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Goel RR, Rook AH. Immunobiology and treatment of cutaneous T-cell lymphoma. Expert Rev Clin Immunol 2024:1-12. [PMID: 38450476 DOI: 10.1080/1744666x.2024.2326035] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 02/28/2024] [Indexed: 03/08/2024]
Abstract
INTRODUCTION Primary cutaneous T cell lymphomas (CTCL) are a heterogenous group of non-Hodgkin lymphomas derived from skin-homing T cells. These include mycosis fungoides and its leukemic variant Sezary syndrome, as well as the CD30+ lymphoproliferative disorders. AREAS COVERED In this review, we provide a summary of the current literature on CTCL, with a focus on the immunopathogenesis and treatment of mycosis fungoides and Sezary syndrome. EXPERT OPINION Recent advances in immunology have provided new insights into the biology of malignant T cells. This in turn has led to the development of new therapies that modulate the immune system to facilitate tumor clearance or target specific aspects of tumor biology.
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Affiliation(s)
- Rishi R Goel
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Institute for Immunology and Immune Health (I3H), Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Alain H Rook
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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Geskin L, Querfeld C, Hodak E, Nikbakht N, Papadavid E, Ardigò M, Wehkamp U, Bagot M. Expert opinions and clinical experiences with chlormethine gel as maintenance treatment for patients with mycosis fungoides. Front Med (Lausanne) 2024; 10:1298988. [PMID: 38304309 PMCID: PMC10832661 DOI: 10.3389/fmed.2023.1298988] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 12/12/2023] [Indexed: 02/03/2024] Open
Abstract
Maintenance treatment can be recommended for patients with mycosis fungoides (MF) whose disease responds to primary treatment. While positive outcomes have been observed in small studies with maintenance therapy, there is a lack of practical guidelines and agreement on when and how maintenance therapy for MF should be approached. In this article, we discuss expert opinions and clinical experiences on the topic of maintenance therapy for patients with MF, with a focus on chlormethine gel. Ideally, patients should have a durable response before initiating maintenance therapy. The definition of and required duration of durable response are topics that are open to debate and currently have no consensus. Chlormethine gel has several attributes that make it suitable for maintenance therapy; it can be easily applied at home, can be combined with other treatment options for maintenance, and has a manageable safety profile. Chlormethine gel as maintenance therapy can be applied at decreasing frequencies after active treatment with chlormethine gel or other therapies until the minimally effective dose is reached. Patients generally tend to adhere well to chlormethine gel maintenance regimens and may remain on treatment for several years. The experiences described here may be useful for clinicians when deciding on maintenance treatment regimens for their patients. Development of guidelines based on clinical trial outcomes will be important to ensure the most effective maintenance treatment strategies are used for patients with MF.
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Affiliation(s)
- Larisa Geskin
- Columbia University Medical Center, Columbia University, New York, NY, United States
| | - Christiane Querfeld
- Division of Dermatology and Department of Pathology, City of Hope National Medical Center and Beckman Research Institute, Duarte, CA, United States
| | - Emmilia Hodak
- Davidoff Medical Center, Rabin Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - Neda Nikbakht
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Evangelia Papadavid
- National Center of Excellence for Rare Disease, Second Department of Dermatology and Venereology, Attikon University General Hospital, Athens, Greece
| | - Marco Ardigò
- San Gallicano Dermatological Institute, IRCCS, Rome, Italy
- Dermatology Unit, IRCCS Humanitas Research Hospital, Rozzano, Italy
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
| | - Ulrike Wehkamp
- Department of Dermatology, University Hospital Schleswig-Holstein, Kiel, Germany
- MSH Medical School Hamburg, Hamburg, Germany
| | - Martine Bagot
- Department of Dermatology, AP-HP, Université de Paris, Hôpital Saint-Louis, Paris, France
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Ardigò M, Nikbakht N, Teoli M, Gleason L, Crisan L, Querfeld C. Chlormethine gel in combination with other therapies for treatment of mycosis fungoides: a review with patient cases. Front Med (Lausanne) 2024; 10:1308491. [PMID: 38274457 PMCID: PMC10810130 DOI: 10.3389/fmed.2023.1308491] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 12/04/2023] [Indexed: 01/27/2024] Open
Abstract
Topical chlormethine gel has been approved as monotherapy for treatment of adult patients with mycosis fungoides (MF), the most common form of cutaneous T-cell lymphoma. In clinical practice, chlormethine gel is often combined with other skin-directed or systemic therapies to optimize response and target recalcitrant lesions. Positive outcomes with combination regimens using chlormethine gel and topical corticosteroids, phototherapy, retinoids, methotrexate, or interferon-α have been reported in literature. However, there are no treatment guidelines on the use of combination regimens with chlormethine gel. To provide real-world evidence and guidance on the use of chlormethine gel combination regimens, several cases of patients treated with chlormethine gel combined with phototherapy (n = 5), retinoids (n = 16), or mogamulizumab (n = 3) are presented. These different combination regimens showed promising results. Most patients had a complete or partial response following treatment and the combinations were well-tolerated over extended treatment periods. Patients receiving chlormethine gel with retinoids had long-term periods of remission, even after treatment discontinuation. Durations of response of up to 3 years were observed in these patients. This long-term disease control may be the result of disease-modifying effects of chlormethine. Previous studies have shown targeted reductions in malignant T-cell clones in patients treated with chlormethine gel as well as improved post-treatment responses. Further research is needed to determine the effectiveness and safety of combination treatment regimens with chlormethine gel and to assess the impact chlormethine gel has on disease control.
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Affiliation(s)
- Marco Ardigò
- Clinical Dermatology Department, San Gallicano Dermatological Institute, IRCCS, Rome, Italy
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
| | - Neda Nikbakht
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Miriam Teoli
- Clinical Dermatology Department, San Gallicano Dermatological Institute, IRCCS, Rome, Italy
| | - Laura Gleason
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Liliana Crisan
- Division of Dermatology and Department of Pathology, City of Hope National Medical Center and Beckman Research Institute, Duarte, CA, United States
| | - Christiane Querfeld
- Division of Dermatology and Department of Pathology, City of Hope National Medical Center and Beckman Research Institute, Duarte, CA, United States
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Alberti-Violetti S, Ardigò M, Massone C, Pileri A, Sala R, Teoli M, Grandi V, Quaglino P, Pimpinelli N, Berti E. Effectiveness and tolerability of chlormethine gel for the management of mycosis fungoides: a multicenter real-life evaluation. Front Oncol 2024; 13:1298296. [PMID: 38239642 PMCID: PMC10794371 DOI: 10.3389/fonc.2023.1298296] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 11/29/2023] [Indexed: 01/22/2024] Open
Abstract
Background Topical chlormethine (CL) is recommended as a first-line treatment for early-stage mycosis fungoides (MF) and in 2017, the European Medicines Agency approved the CL gel formulation to treat adult patients. More recently, to increase patient compliance and adherence, clinicians have developed flexible protocols that allow the concomitant use of CL gel with topical corticosteroids in daily practice regimens. Therefore, sharing real-life data on CL gel use and side effects management may help improve the use of this agent. Objectives To expand knowledge about the actual use of CL gel in patients with MF, the present study assessed the improvement of MF skin lesions after CL gel treatment and provided information on the management of cutaneous adverse events (AEs) in a real-life setting. Methods This was an Italian retrospective study conducted among six dermatology referral centers. Patients ≥18 years affected by MF and in treatment with CL gel (160 µ/g), alone or in combination according to routine clinical practice, between December 2019 and December 2021 were considered. The study's primary aim was to evaluate the effectiveness of CL gel in terms of overall response rate (ORR) after 3 months of treatment. Results A total of 79 patients (61% male) with different stages of MF (84% early stage) were included. CL gel was prescribed mainly in association with topical corticosteroids (66% of patients). ORR after 3 months of treatment was 42%, with no differences between early- and advanced-stage MF. Response rates improved over time up to 97% after 18 months of treatment. Overall, 66 AEs were reported in 67% of patients; most were hyperpigmentation (45%) and irritant contact dermatitis (37%). Six AEs led to treatment discontinuation, and five out of six (83%) patients who reported these events resumed treatment after interruption. No AEs were classified as severe. Conclusions Our observations support the use of CL gel in patients with early- and advanced-stage MF, making it a valuable treatment option.
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Affiliation(s)
- Silvia Alberti-Violetti
- Dermatology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Marco Ardigò
- San Gallicano Dermatological Institute IRCCS, Rome, Italy
| | - Cesare Massone
- Dermatology Unit & Scientific Directorate, Galliera Hospital, Genova, Italy
| | - Alessandro Pileri
- Dermatology, IRCCS Azienda Ospedaliera-Universitaria di Bologna, Policlinico di Sant’Orsola, Bologna, Italy
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Raffaella Sala
- Dermatology Unit, ASST Spedali Civili and University of Brescia, Brescia, Italy
| | - Miriam Teoli
- San Gallicano Dermatological Institute IRCCS, Rome, Italy
| | - Vieri Grandi
- Department of Health Sciences, Dermatology Unit, University of Florence, Florence, Italy
| | - Pietro Quaglino
- Department of Medical Sciences, Dermatology Clinic, University of Turin, Turin, Italy
| | - Nicola Pimpinelli
- Department of Health Sciences, Dermatology Unit, University of Florence, Florence, Italy
| | - Emilio Berti
- Dermatology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
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Latzka J, Assaf C, Bagot M, Cozzio A, Dummer R, Guenova E, Gniadecki R, Hodak E, Jonak C, Klemke CD, Knobler R, Morrris S, Nicolay JP, Ortiz-Romero PL, Papadavid E, Pimpinelli N, Quaglino P, Ranki A, Scarisbrick J, Stadler R, Väkevä L, Vermeer MH, Wehkamp U, Whittaker S, Willemze R, Trautinger F. EORTC consensus recommendations for the treatment of mycosis fungoides/Sézary syndrome - Update 2023. Eur J Cancer 2023; 195:113343. [PMID: 37890355 DOI: 10.1016/j.ejca.2023.113343] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/28/2023] [Accepted: 08/23/2023] [Indexed: 10/29/2023]
Abstract
On behalf of the EORTC Cutaneous Lymphoma Tumours Group (EORTC-CLTG) and following up on earlier versions published in 2006 and 2017 this document provides an updated standard for the treatment of mycosis fungoides and Sézary syndrome (MF/SS). It considers recent relevant publications and treatment options introduced into clinical practice after 2017. Consensus was established among the authors through a series of consecutive consultations in writing and a round of discussion. Treatment options are assigned to each disease stage and, whenever possible and clinically useful, separated into first- and second line options annotated with levels of evidence. Major changes to the previous version include the incorporation of chlormethine, brentuximab vedotin, and mogamulizumab, recommendations on the use of pegylated interferon α (after withdrawal of recombinant unpegylated interferons), and the addition of paragraphs on supportive therapy and on the care of older patients. Still, skin-directed therapies are the most appropriate option for early-stage MF and most patients have a normal life expectancy but may suffer morbidity and impaired quality of life. In advanced disease treatment options have expanded recently. Most patients receive multiple consecutive therapies with treatments often having a relatively short duration of response. For those patients prognosis is still poor and only for a highly selected subset long term remission can be achieved with allogeneic stem cell transplantation. Understanding of the disease, its epidemiology and clinical course, and its most appropriate management are gradually advancing, and there is well-founded hope that this will lead to further improvements in the care of patients with MF/SS.
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Affiliation(s)
- Johanna Latzka
- Department of Dermatology and Venereology, University Hospital of St. Pölten, Karl Landsteiner University of Health Sciences, St. Pölten, Austria; Karl Landsteiner Institute of Dermatological Research, Department of Dermatology and Venereology, University Hospital of St. Pölten, St. Pölten, Austria.
| | - Chalid Assaf
- Department of Dermatology, HELIOS Klinikum Krefeld, Krefeld, Germany; Institute for Molecular Medicine, Medical School Hamburg, University of Applied Sciences and Medical University, Hamburg, Germany; Department of Dermatology, HELIOS Klinikum Schwerin, University Campus of The Medical School Hamburg, Schwerin, Germany
| | - Martine Bagot
- Department of Dermatology, Hopital Saint Louis, Université Paris Cité, INSERM U976, Paris, France
| | - Antonio Cozzio
- Department of Dermatology and Allergology, Kantonspital St. Gallen, St. Gallen, Switzerland
| | - Reinhard Dummer
- Department of Dermatology, University of Zurich, Zurich, Switzerland
| | - Emmanuella Guenova
- Department of Dermatology, University Hospital of Lausanne and Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Robert Gniadecki
- Department of Dermatology, University of Copenhagen, Copenhagen, Denmark; Division of Dermatology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Emmilia Hodak
- Cutaneous Lymphoma Unit, Davidoff Cancer Center, Rabin Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Constanze Jonak
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | | | - Robert Knobler
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Stephen Morrris
- Guy's and St Thomas' NHS Foundation Trust, Guy's Hospital, London, UK
| | - Jan P Nicolay
- Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Mannheim, Germany
| | - Pablo L Ortiz-Romero
- Department of Dermatology, Hospital Universitario 12 de Octubre, Institute i+12, CIBERONC, Medical School, University Complutense, Madrid, Spain
| | - Evangelia Papadavid
- National and Kapodistrian University of Athens, 2nd Department of Dermatology and Venereology, Attikon General Hospital, University of Athens, Chaidari, Greece
| | - Nicola Pimpinelli
- Department of Health Sciences, Division of Dermatology, University of Florence, Florence, Italy
| | - Pietro Quaglino
- Department of Medical Sciences, Section of Dermatology, University of Turin, Turin, Italy
| | - Annamari Ranki
- Department of Dermatology and Allergology, Inflammation Center, Helsinki University Central Hospital, Helsinki, Finland
| | - Julia Scarisbrick
- Department of Dermatology, University Hospital Birmingham, Birmingham, UK
| | - Rudolf Stadler
- University Department of Dermatology, Venereology, Allergology and Phlebology, Skin Cancer Center, Johannes Wesling Medical Centre Minden, Ruhr University Bochum, Bochum, Germany
| | - Liisa Väkevä
- Department of Dermatology and Allergology, Inflammation Center, Helsinki University Central Hospital, Helsinki, Finland
| | - Maarten H Vermeer
- Department of Dermatology, Leiden University Medical Center, Leiden, the Netherlands
| | - Ulrike Wehkamp
- Department of Dermatology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany; Medical Department, Medical School of Hamburg, Hamburg, Germany
| | - Sean Whittaker
- St. John's Institute of Dermatology, School of Basic and Medical Biosciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Rein Willemze
- Department of Dermatology, Leiden University Medical Center, Leiden, the Netherlands
| | - Franz Trautinger
- Department of Dermatology and Venereology, University Hospital of St. Pölten, Karl Landsteiner University of Health Sciences, St. Pölten, Austria; Karl Landsteiner Institute of Dermatological Research, Department of Dermatology and Venereology, University Hospital of St. Pölten, St. Pölten, Austria
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Guenova E, Ortiz-Romero PL, Poligone B, Querfeld C. Mechanism of action of chlormethine gel in mycosis fungoides. J Eur Acad Dermatol Venereol 2023; 37:1739-1748. [PMID: 37262305 DOI: 10.1111/jdv.19237] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 05/11/2023] [Indexed: 06/03/2023]
Abstract
Mycosis fungoides (MF), the most common type of cutaneous T-cell lymphoma, is characterized by proliferation of malignant skin-tropic T cells. Progression from early-stage disease (skin patches and/or plaques) to more advanced stages (cutaneous tumours, erythroderma or extracutaneous involvement) occurs slowly and can be discontinuous. Prognosis is poor for the ~25% of patients who progress to advanced disease. Patients at any stage of MF may experience reduced health-related quality of life (QoL) via a spectrum of physically and psychologically debilitating symptoms that can impact many aspects of daily life. Allogeneic stem-cell transplantation is a curative treatment option for some patients with advanced disease, but otherwise there is currently no cure for MF; patients are often refractory to several treatments and require lifelong management. The goals of therapy are symptom control, prevention of disease progression, avoidance of treatment-related toxicity and maintenance/improvement of QoL. Although treatment regimens exist it can be difficult to know how to prioritize them, hence therapies are tailored according to patient needs and drug availabilities, following clinical recommendations. International consensus guidelines recommend skin-directed therapies (SDTs) as first-line treatment for early-stage disease, and SDTs combined with systemic therapy for advanced stages. Chlormethine (CL), also known as mechlorethamine, chlorethazine, mustine, HN2, caryolysine and embichin, is a synthetic deoxyribonucleic acid-alkylating agent that was used as a chemical weapon (mustard gas) during the First World War. Subsequent investigation revealed that survivors of mustard gas exposure had lymphocytopenia, and that CL could inhibit rapidly proliferating malignant T cells. CL has since been developed as a topical treatment for MF and prescribed as such for over 70 years. This review aims to summarize the current knowledge regarding the mechanism of action of CL in the cutaneous micro-environment, in the specific context of MF treatment.
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Affiliation(s)
- E Guenova
- University Hospital Lausanne (CHUV), Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - P L Ortiz-Romero
- Department of Dermatology, Institute i+12, CIBERONC, Medical School, Hospital 12 de Octubre, University Complutense, Madrid, Spain
| | - B Poligone
- Rochester Skin Lymphoma Medical Group, Fairport, New York, USA
| | - C Querfeld
- Division of Dermatology, Department of Pathology, City of Hope National Medical Center, Beckman Research Institute, Duarte, California, USA
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Fahmy LM, Kwinta BD, Schreidah CM, Ferris LK, Geskin LJ. Topical Mechlorethamine for the Treatment of Psoriasis: A Report of Two Cases and Literature Review. Dermatol Ther (Heidelb) 2023; 13:617-627. [PMID: 36543971 PMCID: PMC9884718 DOI: 10.1007/s13555-022-00871-2] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 11/29/2022] [Indexed: 12/24/2022] Open
Abstract
INTRODUCTION Psoriasis is a common inflammatory skin disease that significantly impacts patients' psychosocial wellbeing. Despite increasingly effective treatment options, the recurrence of plaques after discontinuation of therapy in many patients highlights the need for additional therapies. METHODS We report two cases of patients with concurrent psoriasis and mycosis fungoides who were treated with topical mechlorethamine (MCH). A literature review was performed by searching PubMed using the keywords psoriasis, mechlorethamine, chlormethine, and nitrogen mustard. RESULTS Both patients had significant improvement in their psoriasis following treatment with topical MCH gel, which was well tolerated and maintained clearance after 1 and 3 years of follow-up. Seven prospective cohort studies investigating the use of topical MCH were identified through literature review. Out of five studies reporting clinical outcomes by patient, 68 of 77 patients (88%) experienced an improvement in their psoriasis, with 47 of 77 (61%) achieving complete or near-complete clearance. The remaining two studies reported clinical outcomes by lesion, demonstrating improvement in 40 of 45 lesions (88%) and complete or near-complete clearance in 32 of 42 lesions (76%). Contact dermatitis was the most frequent adverse effect, observed in 56 of 125 patients (45%). CONCLUSIONS Topical MCH may be an option for patients with psoriasis who fail or have incomplete responses to other treatments. Published studies are limited by lack of standardized treatment regimens and well-defined outcome measures, highlighting the need for prospective clinical trials to better understand the utility of this topical agent in psoriasis.
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Affiliation(s)
- Lauren M Fahmy
- Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Bradley D Kwinta
- Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Celine M Schreidah
- Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - Laura K Ferris
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Larisa J Geskin
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY, USA.
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Crimp C, Gangal A, Tarabadkar ES, Shinohara MM. Mechlorethamine Hydrochloride Gel in the Treatment of Mycosis Fungoides–Type Cutaneous T-Cell Lymphoma (MF-CTCL): A Focus on Patient Selection and Special Considerations. Cancer Manag Res 2022; 14:3271-3279. [DOI: 10.2147/cmar.s351420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 11/08/2022] [Indexed: 11/23/2022] Open
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Giuliano C, Frizzarin S, Alonzi A, Stimamiglio V, Ortiz-Romero PL. Chlormethine Gel for the Treatment of Mycosis Fungoides Cutaneous T-Cell Lymphoma: In Vitro Release and Permeation Testing. Dermatol Ther (Heidelb) 2022; 12:2517-2529. [PMID: 36229764 PMCID: PMC9588113 DOI: 10.1007/s13555-022-00813-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 09/07/2022] [Indexed: 12/31/2022] Open
Abstract
Introduction The DNA-alkylating agent chlormethine (CL, or mechlorethamine) is approved in several countries worldwide as a 0.016% w/w topical CL gel formulation, to treat mycosis fungoides cutaneous T-cell lymphoma, with a positive benefit/risk ratio. Methods Release profiles of CL from the gel and a compounded ointment-based 0.016% CL formulation were compared via in vitro release testing (IVRT), utilizing static diffusion cells, a pseudo-infinite dose, and polytetrafluoroethylene membranes, over 5 h. The percutaneous absorption profile of CL gel in ex vivo human skin was also examined, using in vitro permeation testing (IVPT) with flow-through diffusion cells, dermatomed skin (epidermis plus dermis) and epidermal membranes, a finite dose, over 24 h. Results In IVRT experiments, the mean ± SD CL release rate was significantly higher for the gel versus the ointment (5.70 ± 0.73 versus 2.38 ± 1.03 μg/cm2/√h); the formulations were inequivalent per the US Food and Drug Administration scale-up and postapproval changes for nonsterile semisolid dosage forms (FDA SUPAC-SS) criteria. Mean IVPT cumulative CL (gel) permeating through epidermal membrane was higher than for dermatomed skin (4.6% versus 2.5% of applied dose). Mean residual CL on the epidermal membrane surface was 1.3% of the applied dose. Conclusions CL gel (0.016%) and ointment were inequivalent, with an optimized release profile, suggesting minimal passage of CL gel through human epidermal tissue to the dermis. Supplementary Information The online version contains supplementary material available at 10.1007/s13555-022-00813-y.
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Affiliation(s)
- Claudio Giuliano
- Research and Preclinical Development, Helsinn Healthcare SA, Via Pian Scairolo 9, 6912, Pazzallo-Lugano, Switzerland.
| | | | | | | | - Pablo L Ortiz-Romero
- Department of Dermatology, Institute i+12, CIBERONC, Medical School, Hospital 12 de Octubre, University Complutense, Madrid, Spain
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10
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Wehkamp U, Ardigò M, Papadavid E, Querfeld C, Nikbakht N. Chlormethine Gel for Patients with Mycosis Fungoides Cutaneous T Cell Lymphoma: A Review of Efficacy and Safety in Clinical Trial and Real-World Settings. Adv Ther 2022; 39:3979-4002. [PMID: 35852707 PMCID: PMC9294809 DOI: 10.1007/s12325-022-02219-w] [Citation(s) in RCA: 6] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/08/2022] [Indexed: 01/21/2023]
Abstract
Mycosis fungoides (MF) is a rare disease and is the most common form of cutaneous T cell lymphoma. Topical chlormethine (CL) gel is the first cytotoxic chemotherapy gel that was specifically developed for treatment of MF. In this review, we provide an overview of all available data on the use of CL gel for treatment of patients with MF. On the basis of the current data collected, CL gel is highly effective, with good response rates observed both in clinical trial and real-world settings. While the gel is approved for monotherapy, it is also used in combination with concomitant skin-directed or systemic therapies in clinical practice. Responses to CL gel treatment can be rapid, but they also frequently occur with a delayed onset of up to 6 months. This indicates that continued treatment with CL gel is important. CL gel has a manageable safety profile, with most adverse events being mild and skin related. Contact dermatitis is one of the more common skin-related adverse events to occur with CL gel treatment that can potentially lead to treatment discontinuation. The data from the literature indicate that patients being treated with CL gel should be monitored carefully, and that dermatitis must be managed effectively to allow patients to continue treatment and achieve the best possible response to treatment.
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Affiliation(s)
- Ulrike Wehkamp
- Department of Dermatology, Venereology and Allergology, University Hospital Schleswig-Holstein, Campus Kiel, Arnold-Heller-Str. 3, 24105 Kiel, Germany
| | - Marco Ardigò
- San Gallicano Dermatologica Institute IRCCS, Rome, Italy
| | - Evangelia Papadavid
- National and Kapodistrian University of Athens, Athens, Greece
- 2nd Department of Dermatology and Venereology, National Center of Excellence for Rare Disease, Attikon University General Hospital, Athens, Greece
| | - Christiane Querfeld
- Division of Dermatology, Department of Pathology, City of Hope Comprehensive Cancer Center, Beckman Institute, Duarte, CA USA
| | - Neda Nikbakht
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, PA USA
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Correia E, Krishnasamy S, Suriano JG, Shi W, Alpdogan SO, Sahu J, Porcu P, Nikbakht N. Response to Chlormethine/Mechlorethamine gel Maintenance Treatment Regimen in Patients With Mycosis Fungoides: A Single-center Retrospective Study. Clin Lymphoma Myeloma Leuk 2022; 22:581-588. [PMID: 35393251 DOI: 10.1016/j.clml.2022.02.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/07/2022] [Accepted: 02/20/2022] [Indexed: 02/08/2023]
Abstract
BACKGROUND Mycosis fungoides (MF), the most common subtype of Cutaneous T-cell lymphomas, is caused by malignant T-cell proliferations in the skin that can invade blood, lymph nodes, or viscera. Currently, data on efficacy of maintenance therapies in MF are lacking. We developed a unique protocol to use chlormethine/mechlorethamine 0.016% gel formulation as maintenance regimen for MF patients in remission. PURPOSE To determine progression-free survival and efficacy of chlormethine/mechlorethamine as maintenance and active treatment regimens for MF. MATERIALS AND METHODS A retrospective review of MF patients seen at Thomas Jefferson University from 2012 to 2020 was conducted. Patients of all stages treated with chlormethine/mechlorethamine as maintenance or active treatment with 2 consecutive mSWATs (modified Severity Weighted Assessment Tool) documented were included. Treatment outcomes were assessed by change in mSWAT and progression-free survival. Dermatology Life Quality Index surveys before and after treatment were analyzed. RESULTS Of 186 MF patients, 44 met inclusion criteria. Patients on maintenance therapy had a 65.22% progression-free survival rate with median time to progression of 29.45 months. By-time analysis for responders on active and maintenance treatment showed an increased response over time. Peak responses were seen at last mSWAT recorded. Both cohorts experienced improved quality-of-life scores from initiation to discontinuation of chlormethine/mechlorethamine. CONCLUSION Patients on maintenance and active chlormethine/mechlorethamine treatment regimens demonstrated improvement in mSWAT and quality-of-life. Chlormethine/mechlorethamine treatment showed progression-free survival for a median of 29.45 months, indicating this therapy may be an effective maintenance regimen.
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Affiliation(s)
- Emily Correia
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, PA
| | - Shalini Krishnasamy
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, PA
| | - Jayson G Suriano
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, PA
| | - Wenyin Shi
- Department of Radiation Oncology, Thomas Jefferson University, Philadelphia, PA
| | | | - Joya Sahu
- Dermatology Specialists of Alabama, Madison, AL
| | - Pierluigi Porcu
- Department of Hematology & Oncology, Thomas Jefferson University, Philadelphia, PA
| | - Neda Nikbakht
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, PA.
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12
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Laghi A, Franceschini C, Mandel VD, Teoli M, Musicco F, Sansone M, La Malfa AM, Ardigò M. Topical chlormethine gel in the treatment of mycosis fungoides: a single-center real-life experience and systematic review of the literature. Dermatol Ther 2022; 35:e15683. [PMID: 35778940 DOI: 10.1111/dth.15683] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 05/21/2022] [Accepted: 06/29/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Gel formulation of chlormethine (CG) has gained a preeminent role among therapies available for mycosis fungoides (MF). OBJECTIVES To evaluate the frequency of use of CG for MF treatment and to determine the limits and potentialities of CG in a real-world setting. MATERIALS AND METHODS A systematic review of articles published prior to October 2021 was performed. Articles were included in the review if a full-text English version was available. MEDLINE (PubMed), Scopus and Web of Science were each queried from their date of inception with the following terms: "mechlorethamine gel", "chlormethine gel" and "mycosis fungoides". The reference lists of the studies retrieved were searched manually. Moreover, this study included all consecutive patients with different stages of MF (from IA to IIB) who started treatment with CG gel between July 2020 and May 2021. Data of the literature were compared to our single-center real-life experience. RESULTS Of the surveyed literature, 11 publications were included in the final analysis describing a total of 548 patients with MF. 11 patients with a median (standard deviation) age of 66 years (15.1) were enrolled and followed up, receiving CG (0.02% chlormethine HCl). Response to treatment resulted higher (90.1%) in our study population than in other real-world experiences published in literature. CONCLUSION This systematic review supports the role of CG for MF treatment, showing its limits and potentialities. Our single-center real-life experience revealed an elevated percentage of clinical response with high safety and tolerance, demonstrating its versatile use with dose and application rate adaptability.
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Affiliation(s)
- Alessandro Laghi
- Dermatology Unit, Department of Medicine, Celio Military Hospital, Rome, Italy
| | - Chiara Franceschini
- Porphyria and Rare Diseases Unit, San Gallicano Dermatological Institute - IRCCS, Rome, Italy
| | - Victor Desmond Mandel
- Porphyria and Rare Diseases Unit, San Gallicano Dermatological Institute - IRCCS, Rome, Italy
| | - Miriam Teoli
- Porphyria and Rare Diseases Unit, San Gallicano Dermatological Institute - IRCCS, Rome, Italy
| | - Felice Musicco
- Hospital Pharmacy, Regina Elena National Cancer Institute - IRCCS, Rome, Italy
| | - Massimo Sansone
- Hospital Pharmacy, Regina Elena National Cancer Institute - IRCCS, Rome, Italy
| | | | - Marco Ardigò
- Porphyria and Rare Diseases Unit, San Gallicano Dermatological Institute - IRCCS, Rome, Italy
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13
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Assaf C, Booken N, Dippel E, Guenova E, Jonak C, Klemke CD, Nicolay JP, Schlaak M, Wobser M, Trautinger F. Chlormethin-Gel zur Behandlung der Mycosis fungoides: Ein Expertenkonsens aus Deutschland, Österreich und der Schweiz (DACH-Region) zum Therapiemanagement. J Dtsch Dermatol Ges 2022; 20:579-588. [PMID: 35578416 DOI: 10.1111/ddg.14688_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 11/11/2021] [Indexed: 11/26/2022]
Abstract
HINTERGRUND Chlormethin-Gel ist in Europa zur Therapie von Patienten mit Mycosis fungoides in allen Krankheitsstadien zugelassen. Die optimalen Behandlungsregime hinsichtlich Frequenz, Dosierung, Kombinations- oder Erhaltungstherapien sind noch nicht vollständig etabliert. METHODIK Zehn in der Erforschung und Behandlung kutaner T-Zell-Lymphome erfahrene Experten aus Deutschland, Österreich und der Schweiz (DACH-Region) wurden schriftlich zu Indikation, Anwendungsfrequenz, Beurteilung des Therapieerfolgs, Begleittherapie, Nebenwirkungen, Kombinationstherapien in späteren Krankheitsstadien, Erhaltungstherapie und Adhärenz im Rahmen der Therapie der Mycosis fungoides mit Chlormethin-Gel befragt. Die strukturiert aufbereiteten Ergebnisse der Umfrage wurden in einer Konsensuskonferenz diskutiert und Empfehlungen zum Management der Therapie mit Chlormethin-Gel entwickelt. ERGEBNISSE Wesentlich für die Therapie mit Chlormethin-Gel ist ein individuelles, symptomorientiertes Therapiemanagement. Systemische Nebenwirkungen des Wirkstoffs sind wegen der fehlenden systemischen Verfügbarkeit bei topischer Anwendung unwahrscheinlich. Die häufig auftretende allergische oder irritativ-toxische Kontaktdermatitis kann durch eine Anpassung des Therapieregimes, Therapiepausen sowie nebenwirkungsspezifische und unterstützende Maßnahmen häufig beherrscht werden. Ein einschleichender Therapiebeginn mit Anwendung von Chlormethin-Gel jeden zweiten Tag kann die Tolerabilität wesentlich verbessern, insbesondere wenn die Therapie alternierend mit topischen Kortikosteroiden erfolgt. SCHLUSSFOLGERUNGEN Die Anwendung von Chlormethin-Gel bei Mycosis fungoides wird durch die begleitende Kontaktdermatitis häufig eingeschränkt. Mit einem geeigneten Therapie- und Nebenwirkungsmanagement können vermeidbare Therapieabbrüche verhindert werden und mehr Patienten von der Therapie profitieren.
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Affiliation(s)
- Chalid Assaf
- Klinik für Dermatologie und Venerologie, HELIOS Klinikum Krefeld, Krefeld, Deutschland
| | - Nina Booken
- Klinik und Poliklinik für Dermatologie und Venerologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Deutschland
| | - Edgar Dippel
- Hautklinik Ludwigshafen, Ludwigshafen, Deutschland
| | - Emmanuella Guenova
- Klinik für Dermatologie der Universitätsklinik Lausanne, Fakultät für Biologie und Medizin der Universität Lausanne, Lausanne, Schweiz
| | - Constanze Jonak
- Universitätsklinik für Dermatologie, Medizinische Universität Wien, Wien, Österreich
| | - Claus-Detlev Klemke
- Hautklinik und Hauttumorzentrum, Städtisches Klinikum Karlsruhe, Akademisches Lehrkrankenhaus der Universität Freiburg, Freiburg, Deutschland
| | - Jan P Nicolay
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Mannheim GmbH, Mannheim, Deutschland
| | - Max Schlaak
- Klinik für Dermatologie, Venerologie und Allergologie, Hauttumorcentrum, Charité - Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Deutschland
| | - Marion Wobser
- Klinik und Poliklinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Würzburg, Würzburg, Deutschland
| | - Franz Trautinger
- Abteilung für Haut- und Geschlechtskrankheiten, Universitätsklinikum St. Pölten, Karl Landsteiner Privatuniversität für Gesundheitswissenschaften, St. Pölten, Österreich
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14
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Abstract
The therapeutic approach for mycosis fungoides, the most common type of primary cutaneous T-cell lymphoma, is based mainly on the stage of the disease, and skin-directed treatment is recommended by all international guidelines as the first-line treatment in early-stage disease. Skin-directed treatments may be also given in combination with systemic therapies in early-stage mycosis fungoides patients recalcitrant to different types of skin-directed treatments, or in certain patients with high-risk features. Advanced-stage mycosis fungoides is treated mainly with systemic treatments, which may be combined with skin-directed treatments. Due to the rarity of mycosis fungoides, controlled clinical trials of the different skin-directed treatment modalities are almost non-existent, with a few exceptions, and therefore recommendations are largely based on cohort studies and expert opinion. This paper reviews the new developments in skin-directed treatments and provides an update on new studies of already well-known therapies, and an update on novel treatments.
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Affiliation(s)
- Iris Amitay-Laish
- Division of Dermatology, Rabin Medical Center-Beilinson Hospital, Petach Tikva; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Emmilia Hodak
- Division of Dermatology, Rabin Medical Center-Beilinson Hospital, Petach Tikva; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
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15
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Querfeld C, Scarisbrick JJ, Assaf C, Kim YH, Guitart J, Quaglino P, Hodak E. Chlormethine Gel Versus Chlormethine Ointment for Treatment of Patients with Mycosis Fungoides: A Post-Hoc Analysis of Clinical Trial Data. Am J Clin Dermatol 2022; 23:561-570. [PMID: 35536441 PMCID: PMC9334402 DOI: 10.1007/s40257-022-00687-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/17/2022] [Indexed: 01/19/2023]
Abstract
BACKGROUND Chlormethine gel was approved for treatment of mycosis fungoides, the most common cutaneous T-cell lymphoma, on the basis of results from study 201 and study 202. A post-hoc analysis of study 201 found interesting trends regarding improved efficacy of chlormethine gel vs ointment and noted a potential association between dermatitis and clinical response. OBJECTIVE To expand these results by performing a post-hoc analysis of study 202. PATIENTS AND METHODS Patients received chlormethine gel or ointment during study 201 (12 months) and higher-concentration chlormethine gel during study 202 (7-month extension). Response was assessed using Composite Assessment of Index Lesion Severity (CAILS). Associations between treatment frequency, response, and skin-related adverse events (AEs) were assessed using multivariate time-to-event analyses. Time-to-response and repeated measures analyses were compared between patients who only used chlormethine gel and those who switched from ointment to gel. RESULTS No associations were seen between treatment frequency and improved skin response (CAILS) or AE occurrence within the 201/202 study populations. However, an association was observed specifically between contact dermatitis and improved CAILS response at the next visit (p < 0.0001). Patients who used chlormethine gel during both studies had a significantly (p < 0.05) shorter time to response and higher overall response rates than patients who initiated treatment with ointment. CONCLUSIONS This post-hoc analysis shows that patients who initiated treatment using chlormethine gel had faster and higher responses compared with patients who initially used chlormethine ointment for 12 months. The development of contact dermatitis may be a potential prognostic factor for response. TRIAL REGISTRATION NUMBERS AND DATES OF REGISTRATION Study 201: NCT00168064, September 14, 2002; Study 202: NCT00535470, September 26, 2007.
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Affiliation(s)
- Christiane Querfeld
- City of Hope Cancer Center and Beckman Research Institute, 1500 East Duarte Rd, Duarte, CA, 91010, USA.
| | | | - Chalid Assaf
- Department of Dermatology and Venerology, Helios Klinikum Krefeld, Krefeld, Germany
- Academic Teaching Hospital of the University of Aachen, Aachen, Germany
| | - Youn H Kim
- Department of Dermatology, Stanford Cancer Center, Stanford, CA, USA
| | - Joan Guitart
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Pietro Quaglino
- Department of Medical Sciences, Dermatology Clinic, University of Turin, Turin, Italy
| | - Emmilia Hodak
- Division of Dermatology, Rabin Medical Center, Beilinson Hospital, Petah Tikvah, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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16
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Assaf C, Booken N, Dippel E, Guenova E, Jonak C, Klemke C, Nicolay JP, Schlaak M, Wobser M, Trautinger F. The optimal use of chlormethine gel for mycosis fungoides: An expert consensus from Germany, Austria and Switzerland (DACH region). J Dtsch Dermatol Ges 2022; 20:579-586. [DOI: 10.1111/ddg.14688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 11/11/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Chalid Assaf
- Department of Dermatology and Venereology HELIOS Klinikum Krefeld Krefeld Germany
| | - Nina Booken
- Department of Dermatology and Venereology University Hospital Hamburg‐ Eppendorf Hamburg Germany
| | - Edgar Dippel
- Department of Dermatology Ludwigshafen Medical Center Ludwigshafen Germany
| | - Emmanuella Guenova
- Department of Dermatology Lausanne University Hospital Faculty of Biology and Medicine University of Lausanne Lausanne Switzerland
| | - Constanze Jonak
- Department of Dermatology Medical University of Vienna Vienna Austria
| | - Claus‐Detlev Klemke
- Department of Dermatology and Skin Tumor Center Karlsruhe Medical Center Karlsruhe Germany Academic Teaching Hospital of the University of Freiburg Freiburg Germany
| | - Jan P. Nicolay
- Department of Dermatology Venereology and Allergology University Medical Center Mannheim Mannheim Germany
| | - Max Schlaak
- Department of Dermatology Venereology and Allergology Skin Tumor Center Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Berlin Germany
| | - Marion Wobser
- Department of Dermatology Venereology and Allergology Würzburg University Hospital Würzburg Germany
| | - Franz Trautinger
- Department of Dermatology and Venereology University Hospital St. Pölten Karl Landsteiner University of Health Sciences St. Pölten Austria
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Chang YT, Ignatova D, Hoetzenecker W, Pascolo S, Fassnacht C, Guenova E. Increased Chlormethine-Induced DNA Double-Stranded Breaks in Malignant T Cells from Mycosis Fungoides Skin Lesions. JID Innov 2022; 2:100069. [PMID: 34977846 DOI: 10.1016/j.xjidi.2021.100069] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 01/16/2023] Open
Abstract
Mycosis fungoides (MF) is a type of cutaneous T-cell lymphoma. Chlormethine (CL) is recommended as first-line therapy for MF, with a major purpose to kill tumor cells through DNA alkylation. To study the extent of treatment susceptibility and tumor specificity, we investigated the gene expression of different DNA repair pathways, DNA double-stranded breaks, and tumor cell proliferation of clonal TCR Vβ+ tumor cell populations in cutaneous T-cell lymphoma skin cells on direct exposure to CL. Healthy human T cells were less susceptible to CL exposure than two T-lymphoma cell lines, resulting in higher proportions of viable cells. Interestingly, in T cells from MF lesions, we observed a downregulation of several important DNA repair pathways, even complete silencing of RAD51AP1, FANC1, and BRCA2 involved in homologous recombination repair. In the presence of CL, the double-stranded DNA breaks in malignant MF skin T cells increased significantly as well as the expression of the apoptotic gene CASP3. These data point toward an important effect of targeting CL on MF skin tumor T cells, which support CL use as an early cutaneous lymphoma treatment and can be of synergistic use, especially beneficial in the setting of combination skin-directed therapies for cutaneous T-cell lymphoma.
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Kim EJ, Guitart J, Querfeld C, Girardi M, Musiek A, Akilov OE, Angello JT, Bailey WL, Geskin LJ. The PROVe Study: US Real-World Experience with Chlormethine/Mechlorethamine Gel in Combination with Other Therapies for Patients with Mycosis Fungoides Cutaneous T-Cell Lymphoma. Am J Clin Dermatol 2021; 22:407-14. [PMID: 33656660 DOI: 10.1007/s40257-021-00591-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/23/2021] [Indexed: 11/05/2022]
Abstract
Background Chlormethine/mechlorethamine gel is a skin-directed therapy for patients with mycosis fungoides cutaneous T-cell lymphoma. Currently, real-world data on chlormethine gel are lacking. Objective Our objective was to analyze the effect of chlormethine gel in combination with other therapies on efficacy, safety, and health-related quality of life in a real-world setting. Methods This prospective, observational study enrolled adult patients actively using chlormethine gel. Patients were monitored for up to 2 years during standard-of-care clinic visits. No specific visit schedules or clinical assessments, with the exception of patient-completed questionnaires, were mandated because of the expected variability in practice patterns. The primary efficacy endpoint was the proportion of patients with stage IA–IB disease receiving chlormethine + topical corticosteroids + other with ≥ 50% decrease in body surface area from baseline to 12 months. Response was assessed at each visit using by-time analysis, which investigates the trend to treatment response and allows assessment of response over time. Health-related quality of life was assessed with the Skindex-29 questionnaire. Results In total, 298 patients were monitored. At 12 months post-treatment initiation, 44.4% (chlormethine + topical corticosteroids + other) and 45.1% (patients receiving chlormethine + other treatment) of efficacy-evaluable patients were responders. By-time analysis demonstrated that peak response occurred (chlormethine + other; 66.7%) at 18 months. There was a significant correlation between responder status and lower post-baseline Skindex-29 scores. Conclusions This real-world study confirmed that chlormethine gel is an important therapeutic option for patients with mycosis fungoides and contributes to reducing the severity of skin lesions and improving health-related quality of life. Infographic ![]()
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