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A multi-arm phase I dose escalating study of an oral NOTCH inhibitor BMS-986115 in patients with advanced solid tumours.

ABSTRACT: Background Inhibiting Notch is a promising anti-cancer strategy as it plays a critical role in cancer stem cells maintenance and tumour angiogenesis. BMS-986115 is an orally active, selective inhibitor of gamma-secretase mediated Notch signalling. Method Two dose escalation schedules (Arm-A continuous daily schedule and Arm-B intermittent 2 times weekly schedule) of BMS-986115 were evaluated in advanced solid tumour patients. The primary objective was to establish the safety, tolerability and Maximum Tolerated Dose (MTD) of BMS-986115. Results Thirty six patients (24 in Arm A and 12 in Arm B) were treated. The most frequent treatment related adverse advents were diarrhoea (72%), hypophosphataemia (64%), and nausea (61%). The MTD was 1.5 mg daily in Arm A but not established in Arm B. Four patients in Arm A and 2 in Arm B experienced dose limiting toxicities (grade 3 nausea, diarrhoea, pruritus/urticaria and ileus). BMS-986115 showed dose related increase in exposure within the dose range tested. Target inhibition of Notch pathway related genes was observed. Three patients in Arm A and 2 in Arm B achieved stable disease for more than 6 months. Conclusion The daily oral dosing of BMS-986115 is safe and tolerable with biological activity demonstrated by continuous target engagement and Notch signalling inhibition.

SUBMITTER: Aung KL

PROVIDER: S-EPMC7523345 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature

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A multi-arm phase I dose escalating study of an oral NOTCH inhibitor BMS-986115 in patients with advanced solid tumours.

Aung Kyaw L KL El-Khoueiry Anthony B AB Gelmon Karen K Tran Ben B Bajaj Gaurav G He Bing B Chen Tian T Zhu Lili L Poojary Sharath S Basak Shashwati S Qi Zhenhao Z Spreafico Anna A Fischer Bruce S BS Desai Jayesh J

Investigational new drugs 20180410 6

Background Inhibiting Notch is a promising anti-cancer strategy as it plays a critical role in cancer stem cells maintenance and tumour angiogenesis. BMS-986115 is an orally active, selective inhibitor of gamma-secretase mediated Notch signalling. Method Two dose escalation schedules (Arm-A continuous daily schedule and Arm-B intermittent 2 times weekly schedule) of BMS-986115 were evaluated in advanced solid tumour patients. The primary objective was to establish the safety, tolerability and Ma ...[more]

PMID: 29637471

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Project description:BACKGROUND:NTRK1, NTRK2 and NTRK3 gene fusions (NTRK gene fusions) occur in a range of adult cancers. Larotrectinib is a potent and highly selective ATP-competitive inhibitor of TRK kinases and has demonstrated activity in patients with tumours harbouring NTRK gene fusions. PATIENTS AND METHODS:This multi-centre, phase I dose escalation study enrolled adults with metastatic solid tumours, regardless of NTRK gene fusion status. Key inclusion criteria included evaluable and/or measurable disease, Eastern Cooperative Oncology Group performance status 0-2, and adequate organ function. Larotrectinib was administered orally once or twice daily, on a continuous 28-day schedule, in increasing dose levels according to a standard 3?+?3 dose escalation scheme. The primary end point was the safety of larotrectinib, including dose-limiting toxicity. RESULTS:Seventy patients (8 with tumours with NTRK gene fusions; 62 with tumours without a documented NTRK gene fusion) were enrolled to 6 dose cohorts. There were four dose-limiting toxicities; none led to study drug discontinuation. The maximum tolerated dose was not reached. Larotrectinib-related adverse events were predominantly grade 1; none were grade 4 or 5. The most common grade 3 larotrectinib-related adverse event was anaemia [4 (6%) of 70 patients]. A dose of 100?mg twice daily was recommended for phase II studies based on tolerability and antitumour activity. In patients with evaluable TRK fusion cancer, the objective response rate by independent review was 100% (eight of the eight patients). Eight (12%) of the 67 assessable patients overall had an objective response by investigator assessment. Median duration of response was not reached. Larotrectinib had limited activity in tumours with NTRK mutations or amplifications. Pharmacokinetic analysis showed exposure was generally proportional to administered dose. CONCLUSIONS:Larotrectinib was well tolerated, demonstrated activity in all patients with tumours harbouring NTRK gene fusions, and represents a new treatment option for such patients. CLINCALTRIALS.GOV NUMBER:NCT02122913.

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A multi-arm phase I dose escalating study of an oral NOTCH inhibitor BMS-986115 in patients with advanced solid tumours.

Publications

A multi-arm phase I dose escalating study of an oral NOTCH inhibitor BMS-986115 in patients with advanced solid tumours.

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