BMS-986500 alone or with other therapies for advanced solid tumors

A Phase 1 First-in-human Study of BMS-986500 as Monotherapy in Advanced Solid Tumors and as Combination Therapy in CDK4/6 Inhibitor Pre-treated Advanced Breast Cancer

Phase 1 Interventional Bristol-Myers Squibb · NCT06997029

This trial will test whether BMS-986500 by itself or combined with palbociclib and fulvestrant can help adults with advanced solid tumors, including breast and ovarian cancers, especially after CDK4/6 inhibitor treatment.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment234 (estimated)
Ages18 Years and up
SexAll
SponsorBristol-Myers Squibb Industry-sponsored
Locations21 sites (Birmingham, Alabama and 20 other locations)
Trial IDNCT06997029 on ClinicalTrials.gov

What this trial studies

This is a Phase 1, open-label trial testing BMS-986500 as monotherapy in adults with advanced, unresectable, or metastatic solid tumors and as combination therapy in selected breast and ovarian cancer cohorts. The study uses dose-escalation and expansion cohorts to define safety, tolerability, and an appropriate dose, with tumor response measured by RECIST v1.1. Part 2A specifically enrolls patients with CCNE1-amplified ovarian cancer, while combination arms focus on patients previously treated with CDK4/6 inhibitors. Eligible participants must be adults with measurable disease and ECOG performance status 0–1, and the protocol excludes patients with active brain metastases, significant cardiac disease, recent major bleeding, or high-grade neuropathy.

Who should consider this trial

Good fit: Adults (≥18) with histologically confirmed advanced, unresectable, or metastatic solid tumors with measurable disease and ECOG 0–1 are the main candidates, with specific cohorts for CDK4/6-pretreated breast cancer and CCNE1-amplified ovarian cancer in Part 2A.

Not a fit: Patients with active brain metastases, significant cardiac disease, recent clinically significant bleeding, Grade ≥2 peripheral neuropathy, or other protocol-defined exclusions are unlikely to be eligible or to benefit from participation.

Why it matters

Potential benefit: If successful, this approach could offer a new treatment option for people with advanced solid tumors and a targeted combo option for breast and CCNE1-amplified ovarian cancers after CDK4/6 therapy.

How similar studies have performed: Other early-phase targeted-agent combinations have shown preliminary activity in advanced cancers, but BMS-986500 is in early human testing and has limited prior clinical data.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Participants must be ≥ 18 years of age.
* Participants must have histologically confirmed diagnosis of a locally advanced, unresectable, or metastatic solid tumor malignancy.
* Participants must have a measurable disease per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1
* Participants must have a stable Eastern Cooperative Oncology Group Performance Status of 0 or 1.
* For Part 2A only, participants must have CCNE1-amplified ovarian cancer

Exclusion Criteria:

* Participants must not have an active brain metastasis.
* Participants must not have impaired cardiac function or clinically significant cardiac disease.
* Participants must not have bleeding disorder or any history of clinically significant bleeding within the prior 3 months.
* Participants must not have Grade ≥ 2 peripheral neuropathy.
* Other protocol-defined Inclusion/Exclusion criteria apply.

Where this trial is running

Birmingham, Alabama and 20 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Advanced Solid TumorAdvanced Breast CancerAdvanced Ovarian Cancercanceroncologysolid tumor
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.