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Ref Type Journal Article
PMID (38197815)
Authors Drilon A, Camidge DR, Lin JJ, Kim SW, Solomon BJ, Dziadziuszko R, Besse B, Goto K, de Langen AJ, Wolf J, Lee KH, Popat S, Springfeld C, Nagasaka M, Felip E, Yang N, Velcheti V, Lu S, Kao S, Dooms C, Krebs MG, Yao W, Beg MS, Hu X, Moro-Sibilot D, Cheema P, Stopatschinskaja S, Mehta M, Trone D, Graber A, Sims G, Yuan Y, Cho BC, TRIDENT-1 Investigators
Title Repotrectinib in ROS1 Fusion-Positive Non-Small-Cell Lung Cancer.
URL
Abstract Text The early-generation ROS1 tyrosine kinase inhibitors (TKIs) that are approved for the treatment of ROS1 fusion-positive non-small-cell lung cancer (NSCLC) have antitumor activity, but resistance develops in tumors, and intracranial activity is suboptimal. Repotrectinib is a next-generation ROS1 TKI with preclinical activity against ROS1 fusion-positive cancers, including those with resistance mutations such as ROS1 G2032R.In this registrational phase 1-2 trial, we assessed the efficacy and safety of repotrectinib in patients with advanced solid tumors, including ROS1 fusion-positive NSCLC. The primary efficacy end point in the phase 2 trial was confirmed objective response; efficacy analyses included patients from phase 1 and phase 2. Duration of response, progression-free survival, and safety were secondary end points in phase 2.On the basis of results from the phase 1 trial, the recommended phase 2 dose of repotrectinib was 160 mg daily for 14 days, followed by 160 mg twice daily. Response occurred in 56 of the 71 patients (79%; 95% confidence interval [CI], 68 to 88) with ROS1 fusion-positive NSCLC who had not previously received a ROS1 TKI; the median duration of response was 34.1 months (95% CI, 25.6 to could not be estimated), and median progression-free survival was 35.7 months (95% CI, 27.4 to could not be estimated). Response occurred in 21 of the 56 patients (38%; 95% CI, 25 to 52) with ROS1 fusion-positive NSCLC who had previously received one ROS1 TKI and had never received chemotherapy; the median duration of response was 14.8 months (95% CI, 7.6 to could not be estimated), and median progression-free survival was 9.0 months (95% CI, 6.8 to 19.6). Ten of the 17 patients (59%; 95% CI, 33 to 82) with the ROS1 G2032R mutation had a response. A total of 426 patients received the phase 2 dose; the most common treatment-related adverse events were dizziness (in 58% of the patients), dysgeusia (in 50%), and paresthesia (in 30%), and 3% discontinued repotrectinib owing to treatment-related adverse events.Repotrectinib had durable clinical activity in patients with ROS1 fusion-positive NSCLC, regardless of whether they had previously received a ROS1 TKI. Adverse events were mainly of low grade and compatible with long-term administration. (Funded by Turning Point Therapeutics, a wholly owned subsidiary of Bristol Myers Squibb; TRIDENT-1 ClinicalTrials.gov number, NCT03093116.).

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Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Drugs Efficacy Evidence Clinical Trials
Drug Name Trade Name Synonyms Drug Classes Drug Description
Gene Variant Impact Protein Effect Variant Description Associated with drug Resistance
ROS1 F2004I missense unknown ROS1 F2004I lies within the protein kinase domain of the Ros1 protein (UniProt.org). F2004I has been identified in the scientific literature (PMID: 34907086, PMID: 38197815), but has not been biochemically characterized and therefore, its effect on Ros1 protein function is unknown (PubMed, Mar 2024).
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
ROS1 fusion ROS1 G2032R lung non-small cell carcinoma predicted - sensitive Repotrectinib Phase I Actionable In a Phase I/II trial (TRIDENT-1), Augtyro (repotrectinib) treatment resulted in a confirmed objective response rate of 59% (10/17) in patients with TKI-pretreated, ROS1 fusion-positive non-small cell lung cancer harboring ROS1 G2032R (PMID: 38197815; NCT03093116). 38197815
ROS1 fusion lung non-small cell carcinoma sensitive Repotrectinib FDA approved Actionable In a Phase I/II trial (TRIDENT-1) that supported FDA approval, Augtyro (repotrectinib) resulted in an objective response rate of 79% (56/71, 7 complete and 49 partial responses) and 38% (21/56, 3 complete and 18 partial responses), median duration of response of 34.1 and 14.8 months, and a median progression-free survival of 35.7 and 9.0 months in patients with TKI-naive and TKI-treated, ROS1 fusion-positive non-small cell lung cancer, respectively (PMID: 38197815; NCT03093116). 38197815 detail...