NCT07633756

A Phase 1b, Open-Label Study Of REC-617, A Selective CDK7 Inhibitor, In Patients With Metastatic Or Unresectable RB1-Negative Leiomyosarcoma After Prior Systemic Therapy

Recruiting
PHASE1Ages 18+InterventionalTreatment
M.D. Anderson Cancer Center
~15 participants
Updated 2026-07-31 on ClinicalTrials.gov
What's tested:REC617

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Safety and adverse events (AEs).
Measured over Through study completion; an average of 1 year
Phase 1b
Open Label
REC-617
RB1-Negative
Leiomyosarcoma
1 sites across 1 states
Texas1
  • Elise Nassif, MD · PRINCIPAL_INVESTIGATOR · M.D. Anderson Cancer Center

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Eligibility criteria

Exclusion

Participants who are receiving any other investigational agents or have received any other investigational agent within 3 weeks prior to enrollment.
Current enrollment in another clinical study unless it is non-interventional or the follow-up period of an interventional study.
Prior treatment with radiotherapy (including radio-labeled spheres and/or cyberknife, hepatic arterial embolization (with or without chemotherapy) or cryotherapy/ablation) is allowed if these therapies did not affect the areas of measurable disease being used for this protocol.
Received medications known to prolong QTc within 5 half-lives before the first dose of the study treatment. List of medications that prolong QTc can be obtained from crediblemeds.org.
Administration of a live vaccine within 28 days of starting study treatment and for up to 1 month after the final dose of study treatment or anticipation that such vaccine will be required during the study. Note: mRNA-based vaccines for COVID-19 are allowed as well as inactivated flu vaccines.
Has had or is scheduled to have major surgery \<28 days prior to the first dose of study treatment.
Active concurrent second malignancy within 2 years of trial enrollment. Note: Participants with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen are eligible for this trial. Examples include non-melanomatous skin cancer, in situ carcinoma, or low-risk prostate cancer.
Unresolved or unstable toxic side-effects of prior anticancer therapy, except fatigue, alopecia, infertility, peripheral neuropathy, or those relating to palliative radiotherapy within 6 weeks prior to first dose of study treatment will have resolved to Grade 1 or less.
Active gastrointestinal bleeding.
Evidence of severe or uncontrolled systemic disease or psychiatric illness that, in the investigator's judgment, would limit safety or compliance.
Impaired gastrointestinal absorption
History of allergic reactions to compounds like REC-617. D. Transplant History
Prior organ or allogeneic stem-cell transplantation
  • Safety and adverse events (AEs).Through study completion; an average of 1 year

    Incidence of Adverse Events, Graded According to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Version (v) 5.0