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A Study to Evaluate S241656 Alone or in Combination in Participants With Selected Myeloid Malignancies

NCT07719348 · Status: NOT_YET_RECRUITING · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 64

Last updated 2026-07-22

No results posted yet for this study

Summary

The objective of this study is to evaluate the safety, tolerability, and pharmacokinetics (PK) of S241656 and to determine the recommended dose for expansion (RDE) of S241656 in participants with relapsed/refractory (R/R) acute myeloid leukemia (AML), myelodysplastic syndrome/acute myeloid leukemia (MDS/AML), or chronic myelomonocytic leukemia (CMML). Part 1A dose escalation will determine the RDE to be used in a future expansion stage of the trial. An optional Part 1B drug-drug interaction (DDI) substudy will evaluate the effect of posaconazole on the PK of S241656.

The study consists of a screening period of up to 21 days, a treatment period consisting of continuous 28-day cycles of treatment, an end-of-treatment visit, a safety follow-up period, and long-term disease and survival follow-up every 3 months. Participants in the optional DDI substudy may continue treatment in the main study following completion of the DDI assessment period. Participants may undergo bone marrow aspirates and/or biopsies, blood tests, electrocardiograms (ECGs), echocardiograms or multigated acquisition (MUGA) scans, physical examinations, ophthalmologic assessments, and disease response questionnaires.

Conditions

Interventions

DRUG

S241656

Tablets taken by mouth.

DRUG

Posaconazole

Tablets taken by mouth

Sponsors & Collaborators

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
SEQUENTIAL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-09-15
Primary Completion
2027-11-01
Completion
2030-09-30
FDA Drug
Yes

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Entities

Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07719348 on ClinicalTrials.gov