PMID- 29188284 OWN - NLM STAT- MEDLINE DCOM- 20190911 LR - 20220410 IS - 2374-2445 (Electronic) IS - 2374-2437 (Print) IS - 2374-2437 (Linking) VI - 4 IP - 3 DP - 2018 Mar 1 TI - Vemurafenib for BRAF V600-Mutant Erdheim-Chester Disease and Langerhans Cell Histiocytosis: Analysis of Data From the Histology-Independent, Phase 2, Open-label VE-BASKET Study. PG - 384-388 LID - 10.1001/jamaoncol.2017.5029 [doi] AB - IMPORTANCE: The histiocytic neoplasms Erdheim-Chester disease (ECD) and Langerhans cell histiocytosis (LCH) are highly enriched for BRAF V600 mutations and have been previously shown to be responsive to treatment with vemurafenib, an inhibitor of the BRAF V600 kinase. However, the long-term efficacy and safety of prolonged vemurafenib use in these patients are not defined. Here we analyze the final efficacy and safety data for vemurafenib in patients with ECD and LCH enrolled in the VE-BASKET study. OBJECTIVE: To determine the efficacy and safety of vemurafenib in adults with ECD or LCH enrolled in the VE-BASKET study. DESIGN, SETTING, AND PARTICIPANTS: The VE-BASKET study was an open-label, nonrandomized, multicohort study for patients with nonmelanoma cancers harboring the BRAF V600 mutation. Patients with BRAF V600-mutant ECD or LCH were enrolled in an "other solid tumor" cohort of the VE-BASKET study, and they were enrolled in the present study. INTERVENTIONS: Patients received vemurafenib, 960 mg, twice daily continuously until disease progression, study withdrawal, or occurrence of intolerable adverse effects. MAIN OUTCOMES AND MEASURES: The primary end point was confirmed objective response rate (ORR) by Response Evaluation Criteria in Solid Tumors (RECIST, version 1.1). Secondary end points included progression-free survival (PFS), overall survival (OS), metabolic response by modified positron-emission tomography (PET) Response Criteria in Solid Tumors (PERCIST) using 18F-fluorodeoxyglucose (FDG)-PET/computed tomography (CT), and safety. RESULTS: A total of 26 patients from the VE-BASKET trial (22 with ECD, 4 with LCH) were included in the present study (14 women and 12 men; median age, 61 years; age range, 51-74 years). The confirmed ORR was 61.5% (95% CI, 40.6%-79.8%) in the overall cohort and 54.5% (95% CI, 32.2%-75.6%) in patients with ECD. All evaluable patients achieved stable disease or better. The median PFS and OS had not been reached in the overall cohort at study closure despite a median follow-up of 28.8 months; 2-year PFS was 86% (95% CI, 72%-100%), and 2-year OS was 96% (95% CI, 87%-100%). All 15 patients evaluated by FDG-PET/CT achieved a metabolic response, including 12 patients (80%) with a complete metabolic response. The most common adverse events (AEs) in the overall cohort included arthralgia, maculopapular rash, fatigue, alopecia, prolonged QT interval, skin papilloma, and hyperkeratosis. Hypertension and dermatologic AEs occurred at higher rates than those reported in metastatic melanoma. CONCLUSIONS AND RELEVANCE: In this study, vemurafenib had prolonged efficacy in patients with BRAF V600-mutant ECD and LCH and warrants consideration as a new standard of care for these patients. FAU - Diamond, Eli L AU - Diamond EL AD - Memorial Sloan Kettering Cancer Center, New York, New York. AD - Weill Cornell Medical College, New York, New York. FAU - Subbiah, Vivek AU - Subbiah V AD - MD Anderson Cancer Center, Houston, Texas. FAU - Lockhart, A Craig AU - Lockhart AC AD - Sylvester Comprehensive Cancer Center and University of Miami Miller School of Medicine, Miami. FAU - Blay, Jean-Yves AU - Blay JY AD - Centre Leon Berard, Lyon, France. FAU - Puzanov, Igor AU - Puzanov I AD - Roswell Park Cancer Institute, Buffalo, New York. FAU - Chau, Ian AU - Chau I AD - Royal Marsden Hospital, Sutton, Surrey, England. FAU - Raje, Noopur S AU - Raje NS AD - Massachusetts General Hospital, Boston. FAU - Wolf, Jurgen AU - Wolf J AD - University Hospital Koln, Koln, Germany. FAU - Erinjeri, Joseph P AU - Erinjeri JP AD - Memorial Sloan Kettering Cancer Center, New York, New York. AD - Weill Cornell Medical College, New York, New York. FAU - Torrisi, Jean AU - Torrisi J AD - Memorial Sloan Kettering Cancer Center, New York, New York. AD - Weill Cornell Medical College, New York, New York. FAU - Lacouture, Mario AU - Lacouture M AD - Memorial Sloan Kettering Cancer Center, New York, New York. AD - Weill Cornell Medical College, New York, New York. FAU - Elez, Elena AU - Elez E AD - Vall d'Hebron University Hospital and Institute of Oncology (VHIO) and Universitat Autonoma de Barcelona, Barcelona, Spain. FAU - Martinez-Valle, Ferran AU - Martinez-Valle F AD - Vall d'Hebron University Hospital and Institute of Oncology (VHIO) and Universitat Autonoma de Barcelona, Barcelona, Spain. FAU - Durham, Benjamin AU - Durham B AD - Memorial Sloan Kettering Cancer Center, New York, New York. AD - Weill Cornell Medical College, New York, New York. FAU - Arcila, Maria E AU - Arcila ME AD - Memorial Sloan Kettering Cancer Center, New York, New York. AD - Weill Cornell Medical College, New York, New York. FAU - Ulaner, Gary AU - Ulaner G AD - Memorial Sloan Kettering Cancer Center, New York, New York. AD - Weill Cornell Medical College, New York, New York. FAU - Abdel-Wahab, Omar AU - Abdel-Wahab O AD - Memorial Sloan Kettering Cancer Center, New York, New York. AD - Weill Cornell Medical College, New York, New York. FAU - Pitcher, Bethany AU - Pitcher B AD - Hoffmann-La Roche Ltd, Mississauga, Ontario, Canada. FAU - Makrutzki, Martina AU - Makrutzki M AD - F. Hoffmann-La Roche Ltd, Basel, Switzerland. FAU - Riehl, Todd AU - Riehl T AD - Genentech Inc, South San Francisco, California. FAU - Baselga, Jose AU - Baselga J AD - Memorial Sloan Kettering Cancer Center, New York, New York. AD - Weill Cornell Medical College, New York, New York. FAU - Hyman, David M AU - Hyman DM AD - Memorial Sloan Kettering Cancer Center, New York, New York. AD - Weill Cornell Medical College, New York, New York. LA - eng GR - P30 CA008748/CA/NCI NIH HHS/United States GR - R01 CA201247/CA/NCI NIH HHS/United States PT - Clinical Trial, Phase II PT - Journal Article PT - Multicenter Study PL - United States TA - JAMA Oncol JT - JAMA oncology JID - 101652861 RN - 0Z5B2CJX4D (Fluorodeoxyglucose F18) RN - 207SMY3FQT (Vemurafenib) RN - EC 2.7.11.1 (BRAF protein, human) RN - EC 2.7.11.1 (Proto-Oncogene Proteins B-raf) RN - HG18B9YRS7 (Valine) SB - IM EIN - JAMA Oncol. 2019 Jan 1;5(1):122. PMID: 30422161 CIN - JAMA Oncol. 2019 Jan 1;5(1):118-119. PMID: 30422162 MH - Aged MH - Amino Acid Substitution/genetics MH - Erdheim-Chester Disease/diagnosis/*drug therapy/*genetics/mortality MH - Female MH - Fluorodeoxyglucose F18 MH - Histiocytosis, Langerhans-Cell/diagnosis/*drug therapy/genetics/mortality MH - Humans MH - Male MH - Middle Aged MH - *Mutation, Missense MH - Positron Emission Tomography Computed Tomography MH - Prognosis MH - Proto-Oncogene Proteins B-raf/*genetics MH - Survival Analysis MH - Treatment Outcome MH - Valine/genetics MH - Vemurafenib/*therapeutic use PMC - PMC5844839 MID - NIHMS933869 COIS- Conflict of Interest Disclosures: Dr Subbiah reports grants from Roche/Genentech during the conduct of the study; grants from Novartis, Bayer, GSK, Bluprint Medicines, LOXO, Fujifilm, NCI-CTEP, and the NCCN outside the submitted work. Dr Blay reports grants, personal fees and nonfinancial support from Roche, grants from GSK, and grants and personal fees from Novartis during the conduct of the study. Dr Puzanov reports personal fees from Roche during the conduct of the study and personal fees from Amgen outside the submitted work. Dr Chau reports grants and personal fees from Sanofi Oncology, personal fees from Eli-Lilly, Bristol-Myers Squibb, MSD, Bayer, Roche, Five Prime Therapeutics, Taiho, Pfizer, Amgen, and Gilead Science, and grants from Janssen-Cilag, Merck-Serono, and Novartis, outside the submitted work. Dr Wolf reports research grants from AbbVie, AstraZeneca, BMS, Boehringer Ingelheim, Chugai, Ignyta, Lilly, MSD, Novartis, Pfizer, Roche, BMS, MSD, Novartis, Pfizer, and advisory boards and lecture fees from Roche, outside the submitted work. Dr Lacouture reports research grants and consulting fees from Genentech/Roche, research grants from BMS, personal fees from Foamix, Debio, Janssen, Galderma, and Adgero, outside the submitted work. Dr Martinez-Valle reports grants from Pfizer, outside the submitted work. Dr Pitcher is an employee of F. Hoffmann-La Roche Ltd, Mississauga, Ontario, Canada. Dr Makrutzki is an employee of F. Hoffmann-La Roche Ltd, Basel, Switzerland. Dr Riehl is an employee of F. Hoffmann-La Roche Ltd and owns stock in F. Hoffmann-La Roche Ltd. Dr Hyman reports personal fees from Atara Biotherapeutics, Chugai Pharma, CytomX Therapeutics, Boehringer Ingelheim, and AstraZeneca; and grants from AstraZeneca, Puma Biotechnology, and Loxo Oncology outside the submitted work. No other disclosures are reported. EDAT- 2017/12/01 06:00 MHDA- 2019/09/12 06:00 PMCR- 2018/11/29 CRDT- 2017/12/01 06:00 PHST- 2017/12/01 06:00 [pubmed] PHST- 2019/09/12 06:00 [medline] PHST- 2017/12/01 06:00 [entrez] PHST- 2018/11/29 00:00 [pmc-release] AID - 2664827 [pii] AID - cbr170036 [pii] AID - 10.1001/jamaoncol.2017.5029 [doi] PST - ppublish SO - JAMA Oncol. 2018 Mar 1;4(3):384-388. doi: 10.1001/jamaoncol.2017.5029.