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

Phase 1
Completed
Conditions
Squamous Cell Carcinoma of the Head and Neck
Ovarian Cancer
Non-Small Cell Lung Cancer
Interventions
Biological: PF-07257876
Registration Number
NCT04881045
Lead Sponsor
Pfizer
Brief Summary

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.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
29
Inclusion Criteria
  • Histological/cytological diagnosis of selected advanced or metastatic tumor
  • Prior treatment with PD-1 (Programmed cell death 1) or PD-L1 (programmed death-ligand 1) in NSCLC and SCCHN or platinum-based therapy in Ovarian cancer
  • Confirmed radiographic progression of disease
  • PD-L1 IHC positivity โ‰ฅ1%
  • Have โ‰ฅ1 measurable lesion as defined by RECIST 1.1 that has not been previously irradiated
  • Eastern Cooperative Oncology Group performance status 0-1
  • Adequate hematologic, renal and liver functions
  • Resolved acute effects of any prior therapy
  • Participants in Part 1 must be able to provide archival tumor tissue collected within the prior 6 months or consent to undergo a fresh biopsy during screening. Participants enrolled to the MTD (Maximum Tolerated Dose) cohort in Part 1 must consent to mandatory paired pre-treatment and on-treatment biopsies. Participants in Part 2 must consent to a pre-treatment biopsy and a subset of patients must consent to a paired on-study biopsy as well until the Sponsor deems an adequate number have been received.
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Exclusion Criteria
  • Participants with known brain metastasis larger than 4 cm or that is symptomatic. New brain metastases detected at screening. Participants with previously diagnosed brain metastases are eligible if they have completed treatment and recovered from acute effects prior to study entry.
  • Abnormal neurological assessment by investigator
  • Other active malignancy within 3 years prior to enrollment, except for adequately treated basal cell or squamous cell skin cancer, or carcinoma in situ
  • Major surgery or radiation therapy within 4 weeks prior to planned first dose
  • Last systemic anti-cancer therapy within 28 days or 5 half-lives (whichever is shorter) prior to planned first dose (6 weeks for mitomycin C or nitrosoureas)
  • Active bleeding disorder in the past 6 months prior to first dose
  • History of clinically significant severe immune mediated adverse event that was considered related to prior immune modulatory therapy and required immunosuppressive therapy (other than hormone replacement therapy)
  • History of idiopathic pulmonary fibrosis (including pneumonitis), drug-induced pneumonitis, organizing pneumonia (ie, bronchiolitis obliterans, cryptogenic organizing pneumonia), evidence of active pneumonitis on screening chest CT(computer tomography) scan
  • Anticoagulation with vitamin K antagonists or factor Xa inhibitors is not allowed
  • Treatment with chronic systemic corticosteroids or other immunosuppressive medications
  • Participation in other studies involving investigational drug(s) within 4 weeks prior to planned first dose
  • Active, uncontrolled bacterial, fungal, or viral infection, Hepatitis B, Hepatitis C, or Human immunodeficiency virus (HIV) infection
  • Active COVID-19/SARS-CoV2
  • Pregnant or breastfeeding female participant
  • Organ transplant requiring immunosuppressive treatment or prior allogeneic bone marrow or hematopoietic stem cell transplant
  • Significant cardiac or pulmonary conditions or events within previous 6 months
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Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
Dose Escalation (Part 1)PF-07257876Participants will receive PF-07257876 at escalating dose levels.
Dose Expansion (Part 2) - Cohort 1 (NSCLC)PF-07257876Participants with non-small cell lung cancer (NSCLC) will receive PF-07257876 at the recommended dose from Part 1.
Dose Expansion (Part 2) - Cohort 2 (SCCHN)PF-07257876Participants with squamous cell carcinoma of the head and neck (SCCHN) will receive PF-07257876 at the recommended dose from Part 1.
Primary Outcome Measures
NameTimeMethod
Number of participants with adverse events (AEs)Baseline through up to 2 years

AEs characterized by type, frequency, severity (as graded by National Cancer Institute Common Terminology Criteria for Adverse Events \[NCI CTCAE\] version 5.0), timing, seriousness, and relationship to study therapy.

Number of participants with clinically significant laboratory abnormalitiesBaseline through up to 2 years

Laboratory abnormalities as characterized by type, frequency, severity (as graded by NCI CTCAE version 5.0), and timing.

Objective response rate (ORR) in the Expansion cohorts (Part 2)Baseline through up to 2 years or until disease progression

Tumor response based on Response Evaluation Criteria in Solid Tumors (RECIST) v1.1

Number of participants with dose limiting toxicities (DLTs) in Dose Escalation (Part 1)Baseline through end of Cycle 1 (each cycle is 28 days)

DLTs will be evaluated during Cycle 1 (a cycle is 28 days) in Part 1. The number of DLTs will be used to determine the optimal dose

Secondary Outcome Measures
NameTimeMethod
Single dose PK parameter: Area under the Curve (AUClast) in Part 1Cycle 1, Cycle 2, Cycle 3, Cycle 4, and pre-dose on Day 1 at Cycle 5 and every third cycle thereafter (all cycles are 28 days) and at End of Treatment, up to 2 years

Area under the concentration-time curve from time zero to the last quantifiable time point prior to the next dose.

Multiple dose PK parameter: Maximal concentration (Cmax, ss) in Part 1Cycle 1, Cycle 2, Cycle 3, Cycle 4, and pre-dose on Day 1 at Cycle 5 and every third cycle thereafter (all cycles are 28 days) and at End of Treatment, up to 2 years

Maximum observed steady state plasma concentration of PF-07257876 (Cmax, ss)

Multiple dose PK parameter: Time to maximal plasma concentration (Tmax, ss) in Part 1Cycle 1, Cycle 2, Cycle 3, Cycle 4, and pre-dose on Day 1 at Cycle 5 and every third cycle thereafter (all cycles are 28 days) and at End of Treatment, up to 2 years

Time to reach Maximum Observed Steady State Plasma Concentration (Tmax,ss).

Duration of response (DOR)Baseline through up to 2 years or until disease progression

DOR as assessed using RECIST 1.1

Progression free survival (PFS)Baseline through up to 2 years or until disease progression

PFS as assessed using RECIST 1.1

Time to progression (TTP)Baseline through up to 2 years or until disease progression

TTP as assessed using RECIST 1.1

Single dose PK parameter: Time to maximal plasma concentration (Tmax) in Part 1Cycle 1, Cycle 2, Cycle 3, Cycle 4, and pre-dose on Day 1 at Cycle 5 and every third cycle thereafter (all cycles are 28 days) and at End of Treatment, up to 2 years

Time to maximal observed plasma concentration of PF-07257876 (Tmax)

Intratumor PD-L1 expressionBaseline through Cycle 2 Day 15 (each cycle is 28 days)

PD-L1 expression levels in pretreatment tumor biopsies

ORR in Dose Escalation (Part 1)Baseline through up to 2 years or until disease progression

Tumor response assessment based on RECIST 1.1

Immunogenicity of PF-07257876Cycle 1, Cycle 2, Cycle 3, Cycle 4, and pre-dose on Day 1 at Cycle 5 and every third cycle thereafter (all cycles are 28 days) and at End of Treatment, up to 2 years

Incidence, titers, and duration (if data permit) of antidrug antibodies (ADA) and neutralizing antibodies against PF-07257876

Intratumor T cell levelsBaseline through Cycle 2 Day 15 (each cycle is 28 days)

Immune biomarker levels in archival biopsies and/or de novo and on-treatment tumor biopsies.

Single dose Pharmacokinetics (PK) parameter: Maximal concentration (Cmax) in Part 1Cycle 1, Cycle 2, Cycle 3, Cycle 4, and pre-dose on Day 1 at Cycle 5 and every third cycle thereafter (all cycles are 28 days) and at End of Treatment, up to 2 years

Maximum observed plasma concentration of PF-07257876 (Cmax)

Multiple dose PK parameter: Area under the Curve (AUCtau, ss) in Part 1Cycle 1, Cycle 2, Cycle 3, Cycle 4, and pre-dose on Day 1 at Cycle 5 and every third cycle thereafter (all cycles are 28 days) and at End of Treatment, up to 2 years

Area Under the curve within one dose interval at steady state (AUCtau,ss)

Lowest concentration (Ctrough) reached before the next dose is administered in Part 2Pre-dose on Day 1 at Cycles 1, 2, 3, 4, 5 and every third cycle thereafter (each cycle is 28 days) and End of Treatment visit, up to 2 years

PK assessment for PF-07257876

Overall Survival (OS) in the Expansion Cohorts (Part 2)Baseline through up to 2 years or until disease progression

Proportion of patients alive

Trial Locations

Locations (41)

Siteman Cancer Center - St Peters

๐Ÿ‡บ๐Ÿ‡ธ

Saint Peters, Missouri, United States

Hospital General Universitario Gregorio Maraรฑon

๐Ÿ‡ช๐Ÿ‡ธ

Madrid, Madrid, Comunidad DE, Spain

The Angeles Clinic and Research Institute, A Cedars-Sinai Affiliate (Emergency Back-Up Only)

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Santa Monica, California, United States

John Theurer Cancer Center at Hackensack University Medical Center

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Hackensack, New Jersey, United States

Highlands Oncology Group

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Springdale, Arkansas, United States

Siteman Cancer Center-North County

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Florissant, Missouri, United States

Washington University School of Medicine

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Saint Louis, Missouri, United States

Hackensack University Medical Center

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Hackensack, New Jersey, United States

Hospital Universitari Vall d'Hebron

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Barcelona, Barcelona [barcelona], Spain

Mayo Clinic Jacksonville

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Jacksonville, Florida, United States

UPMC Hillman Cancer Center - Carlisle

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Carlisle, Pennsylvania, United States

UPMC Hillman Cancer Center Erie

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Erie, Pennsylvania, United States

Siteman Cancer Center - West County

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Creve Coeur, Missouri, United States

UPMC Pinnacle - Ortenzio Cancer Center (OCC)

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Mechanicsburg, Pennsylvania, United States

Hospital Universitario 12 de Octubre

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Madrid, Madrid, Comunidad DE, Spain

Hospital Clinico de Valencia

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Valencia, Valenciana, Comunitat, Spain

Hoag Hospital Irvine

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Irvine, California, United States

The Angeles Clinic and Research Institute, A Cedars-Sinai Affiliate

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Los Angeles, California, United States

Keck School of Medicine of USC

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Los Angeles, California, United States

Keck Hospital of USC

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Los Angeles, California, United States

UPMC Hillman Cancer Center

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Pittsburgh, Pennsylvania, United States

LAC+USC Medical Center

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Los Angeles, California, United States

USC/Norris Comprehensive Cancer Center

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Los Angeles, California, United States

Hoag Memorial Hospital Presbyterian

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Newport Beach, California, United States

Magee-Womens Hospital of UPMC

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Pittsburgh, Pennsylvania, United States

UPMC Shadyside Hospital

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Pittsburgh, Pennsylvania, United States

UPMC Memorial

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York, Pennsylvania, United States

Keck Hospital of USC Pasadena

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Pasadena, California, United States

Siteman Cancer Center - South County

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Saint Louis, Missouri, United States

Washington University

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Saint Louis, Missouri, United States

UPMC Hillman Cancer Center - Camp Hill

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Camp Hill, Pennsylvania, United States

UPMC Pinnacle - Community Osteopathic / Medical Sciences Pavilion (MSP)

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Harrisburg, Pennsylvania, United States

Virginia Cancer Specialists

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Fairfax, Virginia, United States

Duke Cancer Institute

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Durham, North Carolina, United States

Seattle Cancer Care Alliance

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Seattle, Washington, United States

Mayo Clinic

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Scottsdale, Arizona, United States

Barnes-Jewish Hospital

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Saint Louis, Missouri, United States

Mayo Clinic Hospital

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Phoenix, Arizona, United States

Mayo Clinic Rochester

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Rochester, Minnesota, United States

The Miriam Hospital

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Providence, Rhode Island, United States

Rhode Island Hospital

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Providence, Rhode Island, United States

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