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A Phase 1/2, Open-label Study of Oral S241656 (BDTX-4933) as Monotherapy and in Combination with Other Anti-Cancer Therapies in Patients with KRAS, BRAF and Other Selected RAS/MAPK Mutation-Positive Malignancies

Status
Not yet recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2025-523474-16-00
Enrollment
75
Registered
2026-04-21
Start date
Unknown
Completion date
Unknown
Last updated
2026-04-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Malignancies with Documented KRAS, BRAF and Other Selected RAS/MAPK Mutations

Brief summary

Dose Escalation: Incidence of dose-limiting toxicities occurring within the first 28-day cycle Number of Adverse Events and Serious Adverse Events Dose Expansion: Objective response

Detailed description

1. Dose Escalation: PK parameters of S241656 and its metabolite S243796, including but not limited to Cmax, tmax, AUC, and t½, 2. Dose Escalation: Objective response Disease Control Clinical Benefit Duration of Response Time to response Progression free survival Overall survival, 3. Dose Escalation: Clinical efficacy parameters Safety and tolerability parameters PK including: Exposure-toxicity relationship, 4. Dose Expansion: Clinical Efficacy Parameters Safety and Tolerability Parameters PK & PD parameters, 5. Dose Expansion: Disease Control Clinical Benefit Duration of Response Time to Response Progression free survival Overall Survival, 6. Dose Expansion: PK parameters of S241656 and its metabolite S243796, but not limited to Cmax, tmax, AUC, and t½

Interventions

Sponsors

Institut De Recherches Internationales Servier IRIS
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Dose Escalation: Incidence of dose-limiting toxicities occurring within the first 28-day cycle Number of Adverse Events and Serious Adverse Events Dose Expansion: Objective response

Secondary

MeasureTime frame
1. Dose Escalation: PK parameters of S241656 and its metabolite S243796, including but not limited to Cmax, tmax, AUC, and t½, 2. Dose Escalation: Objective response Disease Control Clinical Benefit Duration of Response Time to response Progression free survival Overall survival, 3. Dose Escalation: Clinical efficacy parameters Safety and tolerability parameters PK including: Exposure-toxicity relationship, 4. Dose Expansion: Clinical Efficacy Parameters Safety and Tolerability Parameters PK & PD parameters, 5. Dose Expansion: Disease Control Clinical Benefit Duration of Response Time to Response Progression free survival Overall Survival, 6. Dose Expansion: PK parameters of S241656 and its metabolite S243796, but not limited to Cmax, tmax, AUC, and t½

Outcome results

None listed

Source: EU CTIS · Data processed: Apr 23, 2026