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Clinical Trial ● Currently Recruiting Phase I NCT05786924

Phase 1/2 Trial of S241656 in Selected RAS/MAPK Mutation- Positive Malignancies

Phase 1/2 Trial of S241656 in Selected RAS/MAPK Mutation- Positive Malignancies — Recruiting • Phase I • Oncology • NCT05786924.

📅 18 Jun 2026 ⏱ 3 min read
Currently Recruiting
This trial is actively seeking participants in the UK. Discuss eligibility with your patient before referring.
Status
Currently Recruiting
Phase
Phase I
NCT ID
NCT05786924
Sponsor
Institut de Recherches Internationales Servier
Start
2023-04-18
ClinicaliQ Trial Snapshot
  • Phase 1/2 Trial of S241656 in Selected RAS/MAPK Mutation- Positive Malignancies — Recruiting • Phase I • Oncology • NCT05786924.
  • What is being tested: S241656 is a novel investigational agent being evaluated in a first-in-human trial as monotherapy and in combination with established anti-cancer therapies in patients with RAS/MAPK mutation-positive advanced malignancies, progressing through dose escalation and expansion phases.
  • Patient eligibility overview: The trial enrolls adult patients with advanced solid tumours harbouring specific RAS or MAPK pathway mutations; participants must have adequate organ function and prior treatment experience varies by cohort, with some requiring prior therapy lines.
Use This Page For
  • Quick orientation before opening the registry record.
  • Checking recruitment status, phase and sponsor at a glance.
  • Connecting this trial to nearby guidelines, Drug Science and education.
What This Trial Is Studying

BDTX-4933-101 is a first-in-human, open-label, Phase 1/2 dose escalation, dose optimization and expansion study designed to evaluate the safety and tolerability of S241656 as monotherapy and in combination with other anti-cancer therapies in participants with selected advanced malignancies. The study population for the Dose Escalation part of the study comprises adults with recurrent advanced/metastatic non-small cell lung cancer (NSCLC), Gastrointestinal (GI) cancers, and other solid tumors harboring KRAS, HRAS, NRAS, BRAF, and/or CRAF (Rapidly Accelerated Fibrosarcoma (RAF1)) mutations or alterations. A dose optimization part in adults with NSCLC may follow…

Eligibility Snapshot
  • Key Inclusion Criteria: * Life expectancy of ≥ 12 weeks in the opinion of the investigator. * Histologically or cytologically confirmed recurrent locally advanced (unresectable) or metastatic solid tumors with documented RAS or RAF mutations or alterations. * Adequate bone marrow and organ function. * Recovered from toxicity to prior anti-cancer therapy. Part 1 Dose Escalation cohort ONLY: * Part 1A: Advanced/metastatic NSCLC with KRAS non-G12C, HRAS, NRAS, BRAF or CRAF (RAF1) mutations or alterations * Part 1B: Advanced/metastatic GI tumors (e.g., PDAC, CRC, and BTC) with KRAS, HRAS, NRAS, BRAF, and/or CRAF (RAF1) mutations or alterations * Part 1C: Advanced/metastatic PDAC with KRAS, HRAS, NRAS, BRAF, and/or CRAF (RAF1) mutations or alterations * Part 1D: Colorectal adenocarcinoma with KRAS, HRAS, NRAS, BRAF, and/or CRAF (RAF1) mutations or alterations * Part 1E: Other advanced/metastatic non-GI, non-NSCLC solid tumors with KRAS, HRAS, NRAS, BRAF, CRAF (RAF1) mutations or alterations Part 2 Dose Optimization and Expansion cohorts ONLY: * Part 2A: Advanced/metastatic NSCLC with KRAS non-G12C mutations and/or BRAF mutations * Part 2A1: Advanced/metastatic NSCLC with KRAS non-G12C mutations * Part 2A2: Advanced/metastatic NSCLC with BRAF mutations * Part 2A3: Advanced/metastatic NSCLC with KRAS non-G12C or BRAF mutations or alterations and active…

Use the source registry for the full inclusion and exclusion criteria before discussing referral or enrolment.

Full Trial Details
View this trial on the source registry
Eligibility criteria, protocol, and results when available
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