PMID- 36284059 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221121 IS - 2193-8210 (Print) IS - 2190-9172 (Electronic) VI - 12 IP - 12 DP - 2022 Dec TI - Maintenance and Concomitant Therapy Use with Chlormethine Gel Among Patients with Stage IA/IB Mycosis Fungoides-Type Cutaneous T-Cell Lymphoma (MF-CTCL): A Real-World Evidence Study. PG - 2781-2795 LID - 10.1007/s13555-022-00831-w [doi] AB - INTRODUCTION: Chlormethine (CL) gel is a skin-directed therapy approved for treatment of stage IA/IB mycosis fungoides-type cutaneous T-cell lymphoma (MF-CTCL) in the USA. MF-CTCL has a chronic clinical course, requiring long-term maintenance therapy with one or more therapies. This analysis describes real-world patterns of maintenance therapy and use of concomitant therapy with CL gel among patients with stage IA/IB MF-CTCL. METHODS: In a US-based registry, MF-CTCL patients treated with CL gel were enrolled between 3/2015 and 10/2018 across 46 centers and followed for up to 2 years. Patient demographics, clinical characteristics, CL gel treatment patterns, concomitant treatments, clinical response, and adverse events (AEs) were collected from medical records. Descriptive statistics are reported. RESULTS: Of the 206 patients with stage IA/IB MF-CTCL, 58.7% were male, and average age was 60.7 years with 4.6 years since diagnosis. Topical steroids, phototherapy, and topical retinoids were used concomitantly with CL gel in 62.6%, 26.2%, and 6.3% of patients, respectively. Most concomitant therapies (up to 85%) were started before CL gel initiation and, in about half of the cases (up to 57%), were used concurrently for >/= 12 months. Overall, 158 (76.7%) patients experienced partial response (PR) and 144 continued with maintenance therapy. After achieving PR, most patients (74.3%) kept the same maintenance therapy schedule, most commonly once daily. Of patients who had any skin-related AE (31.6%) or skin-related AEs associated with CL gel (28.2%), nearly half experienced CL gel treatment interruption and ~40% had a dosing reduction. The observed real-world treatment patterns were concordant with National Comprehensive Cancer Network (NCCN) guidelines. CONCLUSION: The study results suggest that continuing CL gel maintenance therapy and combining treatments with CL gel are common practice in the real-world setting, with most maintained on a stable dosing schedule. Careful management of AEs may help patients maintain long-term optimal dosing with less treatment interruptions and dosing reductions. CI - (c) 2022. The Author(s). FAU - Querfeld, Christiane AU - Querfeld C AD - City of Hope and Beckman Research Institute, 1500 E Duarte Rd, Duarte, CA, 91010, USA. FAU - Nelson, Winnie W AU - Nelson WW AD - Helsinn Therapeutics (U.S.), Inc., 170 Wood Avenue South, 5th Floor, Iselin, NJ, 08830, USA. FAU - Gor, Deval AU - Gor D AD - Genesis Research, LLC., 111 River St, Suite 1120, Hoboken, NJ, 07030, USA. FAU - Pashos, Chris L AU - Pashos CL AD - Genesis Research, LLC., 111 River St, Suite 1120, Hoboken, NJ, 07030, USA. FAU - Doan, Quan V AU - Doan QV AD - Genesis Research, LLC., 111 River St, Suite 1120, Hoboken, NJ, 07030, USA. FAU - Turini, Marco AU - Turini M AD - Helsinn Healthcare SA, Via Pian Scairolo 9, Lugano-Pazzallo, 6912, Lugano, Switzerland. FAU - Angello, James T AU - Angello JT AD - Helsinn Therapeutics (U.S.), Inc., 170 Wood Avenue South, 5th Floor, Iselin, NJ, 08830, USA. FAU - Geskin, Larisa J AU - Geskin LJ AD - Department of Dermatology, Columbia University, 161 Fort Washington Ave, 12th Floor, New York, NY, 10032, USA. ljg2145@cumc.columbia.edu. LA - eng PT - Journal Article DEP - 20221025 PL - Switzerland TA - Dermatol Ther (Heidelb) JT - Dermatology and therapy JID - 101590450 PMC - PMC9674809 OTO - NOTNLM OT - Chlormethine gel OT - MF-CTCL OT - Mechlorethamine gel OT - Mycosis fungoides-type cutaneous T-cell lymphoma OT - Real-world setting OT - Registry OT - Treatment patterns EDAT- 2022/10/26 06:00 MHDA- 2022/10/26 06:01 PMCR- 2022/10/25 CRDT- 2022/10/25 23:18 PHST- 2022/08/25 00:00 [received] PHST- 2022/10/04 00:00 [accepted] PHST- 2022/10/26 06:00 [pubmed] PHST- 2022/10/26 06:01 [medline] PHST- 2022/10/25 23:18 [entrez] PHST- 2022/10/25 00:00 [pmc-release] AID - 10.1007/s13555-022-00831-w [pii] AID - 831 [pii] AID - 10.1007/s13555-022-00831-w [doi] PST - ppublish SO - Dermatol Ther (Heidelb). 2022 Dec;12(12):2781-2795. doi: 10.1007/s13555-022-00831-w. Epub 2022 Oct 25.