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Completed Phase 1 Interventional

Study to Test the Safety and Tolerability of PF-07257876 in Participants With Selected Advanced Tumors.

ClinicalTrials.gov ID: NCT04881045

Public ClinicalTrials.gov record NCT04881045. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 26, 2026, 5:30 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A PHASE 1 DOSE ESCALATION AND EXPANSION STUDY EVALUATING THE SAFETY, TOLERABILITY, PHARMACOKINETICS, PHARMACODYNAMICS, AND ANTITUMOR ACTIVITY OF PF-07257876 IN PATIENTS WITH ADVANCED OR METASTATIC TUMORS

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is a first-in-human, Phase 1, open label, multicenter, multiple dose, dose escalation and dose expansion study intended to evaluate the safety, pharmacokinetic, pharmacodynamic and potential clinical benefit of PF-07257876, a CD47-PD-L1 bispecific antibody, in participants with selected advanced or metastatic tumors for whom no standard therapy is available. The study contains 2 parts, single agent Dose Escalation (Part 1) to determine the recommended dose of PF-07257876, followed by Dose Expansion (Part 2) in selected tumor types at the recommended dose.

Study identification

NCT ID
NCT04881045
Recruitment status
Completed
Study type
Interventional
Phase
Phase 1
Lead sponsor
Pfizer
Industry
Enrollment
29 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Aug 18, 2021 (Actual)
Primary completion
Oct 24, 2023 (Actual)
Completion
Oct 24, 2023 (Actual)
Last update posted
Jun 2, 2026

2021 – 2023

United States locations

U.S. sites
39
U.S. states
12
U.S. cities
28
Facility City State ZIP Site status
Mayo Clinic Hospital Phoenix Arizona 85054 —
Mayo Clinic Scottsdale Arizona 85259 —
Highlands Oncology Group Fayetteville Arkansas 72703 —
Highlands Oncology Group Rogers Arkansas 72758 —
Highlands Oncology Group Springdale Arkansas 72762 —
Hoag Hospital Irvine Irvine California 92618 —
The Angeles Clinic and Research Institute, A Cedars-Sinai Affiliate Los Angeles California 90025 —
Keck Hospital of USC Los Angeles California 90033 —
Keck School of Medicine of USC Los Angeles California 90033 —
LAC+USC Medical Center Los Angeles California 90033 —
USC/Norris Comprehensive Cancer Center Los Angeles California 90033 —
Hoag Memorial Hospital Presbyterian Newport Beach California 92663 —
Keck Hospital of USC Pasadena Pasadena California 91105 —
The Angeles Clinic and Research Institute, A Cedars-Sinai Affiliate (Emergency Back-Up Only) Santa Monica California 90404 —
Mayo Clinic Jacksonville Jacksonville Florida 32224 —
Mayo Clinic Rochester Rochester Minnesota 55905 —
Siteman Cancer Center - St Peters City of Saint Peters Missouri 63376 —
Siteman Cancer Center - West County Creve Coeur Missouri 63141 —
Siteman Cancer Center-North County Florissant Missouri 63031 —
Barnes-Jewish Hospital St Louis Missouri 63110 —
Washington University School of Medicine St Louis Missouri 63110 —
Washington University St Louis Missouri 63110 —
Siteman Cancer Center - South County St Louis Missouri 63129 —
Hackensack University Medical Center Hackensack New Jersey 07601 —
John Theurer Cancer Center at Hackensack University Medical Center Hackensack New Jersey 07601 —
Duke Cancer Institute Durham North Carolina 27710 —
UPMC Hillman Cancer Center - Camp Hill Camp Hill Pennsylvania 17011 —
UPMC Hillman Cancer Center - Carlisle Carlisle Pennsylvania 17015 —
UPMC Hillman Cancer Center Erie Erie Pennsylvania 16505 —
UPMC Pinnacle - Community Osteopathic / Medical Sciences Pavilion (MSP) Harrisburg Pennsylvania 17109 —
UPMC Pinnacle - Ortenzio Cancer Center (OCC) Mechanicsburg Pennsylvania 17050 —
Magee-Womens Hospital of UPMC Pittsburgh Pennsylvania 15213 —
UPMC Hillman Cancer Center Pittsburgh Pennsylvania 15232 —
UPMC Shadyside Hospital Pittsburgh Pennsylvania 15232 —
UPMC Memorial York Pennsylvania 17408 —
Rhode Island Hospital Providence Rhode Island 02903 —
The Miriam Hospital Providence Rhode Island 02906 —
Virginia Cancer Specialists Fairfax Virginia 22031 —
Seattle Cancer Care Alliance Seattle Washington 98109 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 4 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04881045, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jun 2, 2026 · Synced Oct 26, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT04881045 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →