PMID- 35536441 OWN - NLM STAT- MEDLINE DCOM- 20220801 LR - 20221031 IS - 1179-1888 (Electronic) IS - 1175-0561 (Print) IS - 1175-0561 (Linking) VI - 23 IP - 4 DP - 2022 Jul TI - Chlormethine Gel Versus Chlormethine Ointment for Treatment of Patients with Mycosis Fungoides: A Post-Hoc Analysis of Clinical Trial Data. PG - 561-570 LID - 10.1007/s40257-022-00687-y [doi] AB - 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. CI - (c) 2022. The Author(s). FAU - Querfeld, Christiane AU - Querfeld C AD - City of Hope Cancer Center and Beckman Research Institute, 1500 East Duarte Rd, Duarte, CA, 91010, USA. cquerfeld@coh.org. FAU - Scarisbrick, Julia J AU - Scarisbrick JJ AD - University of Birmingham, Birmingham, UK. FAU - Assaf, Chalid AU - Assaf C AD - Department of Dermatology and Venerology, Helios Klinikum Krefeld, Krefeld, Germany. AD - Academic Teaching Hospital of the University of Aachen, Aachen, Germany. FAU - Kim, Youn H AU - Kim YH AD - Department of Dermatology, Stanford Cancer Center, Stanford, CA, USA. FAU - Guitart, Joan AU - Guitart J AD - Northwestern University Feinberg School of Medicine, Chicago, IL, USA. FAU - Quaglino, Pietro AU - Quaglino P AD - Department of Medical Sciences, Dermatology Clinic, University of Turin, Turin, Italy. FAU - Hodak, Emmilia AU - Hodak E AD - Division of Dermatology, Rabin Medical Center, Beilinson Hospital, Petah Tikvah, Israel. AD - Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel. LA - eng SI - ClinicalTrials.gov/NCT00168064 SI - ClinicalTrials.gov/NCT00535470 PT - Journal Article DEP - 20220510 PL - New Zealand TA - Am J Clin Dermatol JT - American journal of clinical dermatology JID - 100895290 RN - 0 (Gels) RN - 0 (Ointments) RN - 50D9XSG0VR (Mechlorethamine) SB - IM MH - Clinical Trials as Topic MH - Dermatitis, Contact/epidemiology MH - Gels MH - Humans MH - *Mechlorethamine/adverse effects MH - *Mycosis Fungoides/drug therapy MH - Ointments MH - *Skin Neoplasms/drug therapy MH - Treatment Outcome PMC - PMC9334402 COIS- C. Querfeld: Research grant: Celgene; clinical investigator: Helsinn, Celgene, Trillium, miRagen, Bioniz, Kyowa Kirin; advisory board: Helsinn, miRagen, Bioniz, Almirall, Trillium, Kyowa Kirin, Stemline Therapeutics. J.J. Scarisbrick: Consultancy: Takeda, Helsinn, Recordati, 4SC, Kyowa, Mallinckrodt, miRagen; research grant: Kyowa. C. Assaf: Advisory board: 4SC, Takeda, Helsinn, Innate Pharma, Recordati Rare Diseases, Kyowa. Y.H. Kim: Steering committee and research funding: Eisai; research funding: Forty Seven; advisory board member: Seattle Genetics; steering committee member, advisory board, and research funding: Kyowa Hakko Kirin; research funding: Portola, Horizon; research funding: Soligenix; steering committee, advisory board, research funding: Innate; research funding: Elorac; advisory board and research funding: Galderma; steering committee and research funding: Corvus; research funding Trillium. J. Guitart: Research support: Galderma, Soligenix; scientific advisory board: Kyowa Kirin. P. Quaglino: Advisory board: 4SC, Takeda, Actelion, Innate Pharma, Helsinn, Recordati Rare Diseases, Kyowa, Therakos. E. Hodak: Scientific advisory board: Actelion, Helsinn, Recordati Rare Diseases, Takeda; speakers' bureau: Helsinn, Rafa, Takeda. EDAT- 2022/05/11 06:00 MHDA- 2022/08/02 06:00 PMCR- 2022/05/10 CRDT- 2022/05/10 11:18 PHST- 2022/03/17 00:00 [accepted] PHST- 2022/05/11 06:00 [pubmed] PHST- 2022/08/02 06:00 [medline] PHST- 2022/05/10 11:18 [entrez] PHST- 2022/05/10 00:00 [pmc-release] AID - 10.1007/s40257-022-00687-y [pii] AID - 687 [pii] AID - 10.1007/s40257-022-00687-y [doi] PST - ppublish SO - Am J Clin Dermatol. 2022 Jul;23(4):561-570. doi: 10.1007/s40257-022-00687-y. Epub 2022 May 10.