A Clinical Trial to Assess COM503 in Participants With Advanced Solid Malignancies

NCT ID: NCT06759649

Last Updated: 2025-12-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-01-07

Study Completion Date

2027-11-22

Brief Summary

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The overall goal of this first-in-human (FIH) clinical trial is to learn about the safety and dosing of COM503 when given alone or in combination with zimberelimab in participants with advanced solid tumors.

The primary objectives of this study are:

* To assess the safety and tolerability of COM503 as monotherapy and COM503 in combination with zimberelimab in participants with advanced solid tumors.
* To identify the maximum tolerated dose (MTD) / maximum administered dose (MAD) and/or the recommended phase 2 dose (RP2D) of COM503 as monotherapy and in combination with zimberelimab in participants with advanced solid tumors.

Detailed Description

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Conditions

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Neoplasm Cancer, Malignant Tumors

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Part 1, A-1

Monotherapy Dose Escalation

Group Type EXPERIMENTAL

COM503

Intervention Type DRUG

Intravenous Infusion

Part 1, A-2

Backfill

Group Type EXPERIMENTAL

COM503

Intervention Type DRUG

Intravenous Infusion

Part 1, B

Dose escalation, COM503 in combination with a fixed dose of zimberelimab.

Group Type EXPERIMENTAL

COM503

Intervention Type DRUG

Intravenous Infusion

Zimberelimab

Intervention Type DRUG

Intravenous infusion

Part 2, A

Dose expansion, COM503 monotherapy

Group Type EXPERIMENTAL

COM503

Intervention Type DRUG

Intravenous Infusion

Part 2, B

Dose expansion, COM503 in combination with a fixed dose of zimberelimab.

Group Type EXPERIMENTAL

COM503

Intervention Type DRUG

Intravenous Infusion

Zimberelimab

Intervention Type DRUG

Intravenous infusion

Interventions

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COM503

Intravenous Infusion

Intervention Type DRUG

Zimberelimab

Intravenous infusion

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Participants with histologically/cytologically confirmed advanced recurrent or metastatic solid tumor malignancy
* Part 1 (dose escalation): Participants must have had disease progression on or following all available standard of care (SOC) therapies known to confer clinical benefit.
* Part 2 (dose expansion): Participants may be enrolled following disease progression that has progressed after at least 1 available standard therapy; or for whom standard therapy has proven to be ineffective or intolerable or is considered inappropriate; or for whom a clinical trial of an investigational agent is a recognized SOC.
* Participants must have a solid tumor measurable by computed tomography (CT) or magnetic resonance imaging (MRI) as per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1) criteria by investigator assessment

Exclusion Criteria

* History of another malignancy within 2 years prior to the first trial intervention administration (unless the malignancy was treated with curative intent with low risk of recurrence \[e.g., nonmelanoma skin cancer, histologically confirmed complete excision of carcinoma in situ, or similar\] which are allowed to enroll).
* Therapy with Immunosuppressive doses of systemic medications, such as steroids (doses \>10 mg/day prednisone or equivalent daily) within 2 weeks before trial intervention administration
* Have known active central nervous system (CNS) metastases and/or leptomeningeal disease (LMD).
* Active and clinically relevant bacterial, fungal, or viral infection that is not controlled or requires systemic antibiotics, antifungals, or antivirals, respectively.
* Ascites or pleural effusion that is symptomatic and/or requiring drainage within 2 weeks prior to the first trial intervention administration.
* Have active hepatitis B virus (HBV) or hepatitis C virus (HCV), or participants with human immunodeficiency virus (HIV).
* Any medical condition that, in the investigator's or sponsor's opinion, poses an undue risk to the participant's participation in the trial.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Gilead Sciences

INDUSTRY

Sponsor Role collaborator

Compugen Ltd

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Yale- New Haven Hospital- Yale Cancer Center

New Haven, Connecticut, United States

Site Status RECRUITING

Beth Israel Deaconess Medical Center

Boston, Massachusetts, United States

Site Status RECRUITING

START Midwest

Grand Rapids, Michigan, United States

Site Status RECRUITING

The West Clinic, PLCC dba West Cancer Center

Germantown, Tennessee, United States

Site Status RECRUITING

NEXT Oncology San Antonio

San Antonio, Texas, United States

Site Status RECRUITING

START

San Antonio, Texas, United States

Site Status RECRUITING

NEXT Oncology Virginia

Fairfax, Virginia, United States

Site Status RECRUITING

Rambam Health Care Campus

Haifa, Israel, Israel

Site Status RECRUITING

Countries

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United States Israel

Central Contacts

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Michelle Chief Medical Officer, MD

Role: CONTACT

+14153734034

Facility Contacts

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Study Coordinator

Role: primary

2038154124

Role: primary

6179757423

Manish Sharma

Role: primary

6169545554

Manager of Phase 1 Research

Role: primary

9016830055

David Sommerhalder

Role: primary

2105809500

Drew Rasco

Role: primary

2105935250

Mohammed Salkeni

Role: primary

7037834510

Sudy Coordinator

Role: primary

97247776238

Other Identifiers

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CPG-05-101

Identifier Type: -

Identifier Source: org_study_id

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