A Clinical Trial of PF-08046037 Alone or With Sasanlimab in Patients With Advanced or Metastatic Malignancies

NCT ID: NCT06974734

Last Updated: 2026-01-15

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

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE1

Total Enrollment

9 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-05-06

Study Completion Date

2026-04-30

Brief Summary

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The purpose of this study is to learn about the safety and the effects of PF-08046037 alone or with sasanlimab for the treatment of certain advanced or metastatic malignancies.

This study is seeking participants who:

* have advanced or metastatic non-small cell lung cancer (NSCLC), head and neck squamous cell carcinoma (HNSCC), melanoma, or pancreatic ductal adenocarcinoma (PDAC);
* are able to provide tumor tissue samples;
* have measurable disease. All participants will receive while at the clinic PF-08046037 alone as an intravenous (IV) infusion (given directly into a vein) or with sasanlimab as a subcutaneous (SQ) injection (given under the skin) once every 3 weeks.

Participants will continue to take the study drug(s) until their cancer is no longer responding or if the patient cannot safely take them. The study team will monitor how each participant is doing with the study treatment during regular visits at the study clinic.

Detailed Description

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Conditions

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Carcinoma, Non Small Cell Lung Carcinoma, Pancreatic Ductal Malignant Melanoma Squamous Cell Carcinoma of the Head and Neck (SCCHN)

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

Dose escalation and expansion
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Part 1a

PF-08046037 monotherapy dose escalation

Group Type EXPERIMENTAL

PF-08046037

Intervention Type DRUG

Given into the vein (IV; intravenous)

Part 2a

PF-08046037 monotherapy dose optimization

Group Type EXPERIMENTAL

PF-08046037

Intervention Type DRUG

Given into the vein (IV; intravenous)

Part 3a

PF-08046037 monotherapy dose expansion

Group Type EXPERIMENTAL

PF-08046037

Intervention Type DRUG

Given into the vein (IV; intravenous)

Part 1b

PF-08046037 +sasanlimab dose escalation

Group Type EXPERIMENTAL

PF-08046037

Intervention Type DRUG

Given into the vein (IV; intravenous)

sasanlimab

Intervention Type DRUG

Given under the skin (SQ; subcutaneous)

Part 2b

PF-08046037 + sasanlimab dose optimization

Group Type EXPERIMENTAL

PF-08046037

Intervention Type DRUG

Given into the vein (IV; intravenous)

sasanlimab

Intervention Type DRUG

Given under the skin (SQ; subcutaneous)

Part 3b

PF-08046037 + sasanlimab dose expansion

Group Type EXPERIMENTAL

PF-08046037

Intervention Type DRUG

Given into the vein (IV; intravenous)

sasanlimab

Intervention Type DRUG

Given under the skin (SQ; subcutaneous)

Interventions

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PF-08046037

Given into the vein (IV; intravenous)

Intervention Type DRUG

sasanlimab

Given under the skin (SQ; subcutaneous)

Intervention Type DRUG

Other Intervention Names

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SGN-PDL1iT PF-06801591

Eligibility Criteria

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Inclusion Criteria

This study is seeking participants who have the following tumor types and can provide tumor tissue samples as per below.

1. Tumor types

* Monotherapy Dose Escalation (Part 1a) and Optimization (Part 2a) cohorts

* Advanced or metastatic NSCLC, HNSCC, melanoma, or PDAC
* Must have progressive disease following at least 1 prior approved systemic therapy
* Monotherapy Dose Expansion (Part 3a)

• Advanced or metastatic NSCLC or PDAC
* Combination Safety Evaluation (Part 1b) and Dose Optimization (Part 2b)

* Advanced or metastatic NSCLC or HNSCC
* May be either a) not received prior immunotherapy for the tumor type OR b) relapse/ refractory after prior immunotherapy
* Combination Dose Expansion (Part 3b)

* Unresectable locally advanced or metastatic HNSCC or NSCLC
* Must not have received prior systemic cytotoxic therapy in the locally advanced or metastatic setting (first-line setting)
* Must be treatment naïve to any immunotherapy
* NSCLC must have PD-L1 expression TPS \>=50%
* HNSCC must have PD-L1 expression CPS \>=1
2. Tissue requirement

* Part 1 at lower doses: sufficient archival tissue collected within 12 months of enrollment for submission to central laboratory
* Part 1 at higher doses: de novo baseline tumor biopsy or archival tissue within 12 months of enrollment
* Part 1 backfill: de novo baseline and on-treatment tumor biopsies are required
* Part 2 and 3: de novo baseline or archival tissue within 6 months of enrollment
* Part 2 and 3: mandatory on-treatment tumor biopsy, if required by sponsor
3. Measurable disease per RECIST v1.1

Participants who meet the following might not be able to participate.

1. History of Grade \>=3 immune mediated AE related to prior immune modulatory therapy and required immunosuppressive therapy
2. Active or prior autoimmune disease that might deteriorate when receiving an immunostimulatory agent
3. History of uveitis within the preceding 6 months
4. Clinically significant Grade \>=3 neurodegenerative disease
5. Grade 3 or higher pulmonary disease unrelated to underlying malignancy
6. Previous exposure to an investigational immunostimulatory antibody conjugate or systemic TLR agonist
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Pfizer

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Pfizer CT.gov Call Center

Role: STUDY_DIRECTOR

Pfizer

Locations

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Presbyterian/ St. Lukes Medical Center

Denver, Colorado, United States

Site Status

Sarah Cannon Research Institute at HealthONE

Denver, Colorado, United States

Site Status

Smilow Cancer Hospital - Yale New Haven Health

New Haven, Connecticut, United States

Site Status

Yale - New Haven Hospital - Yale Cancer Center

New Haven, Connecticut, United States

Site Status

Smilow Cancer Hospital Phase 1 Unit

New Haven, Connecticut, United States

Site Status

Smilow Cancer Hospital - Trumbull

Trumbull, Connecticut, United States

Site Status

Community Health Network, Inc

Indianapolis, Indiana, United States

Site Status

Community Health Network, Inc.

Indianapolis, Indiana, United States

Site Status

Community Health Network, Inc.

Indianapolis, Indiana, United States

Site Status

Community Health Network, Inc.

Indianapolis, Indiana, United States

Site Status

START Midwest

Grand Rapids, Michigan, United States

Site Status

UPMC Vision Center

Pittsburgh, Pennsylvania, United States

Site Status

UPMC Hillman Cancer Center

Pittsburgh, Pennsylvania, United States

Site Status

UPMC Presbyterian Shadyside Hospital

Pittsburgh, Pennsylvania, United States

Site Status

Sarah Cannon Research Institute - Pharmacy

Nashville, Tennessee, United States

Site Status

SCRI Oncology Partners

Nashville, Tennessee, United States

Site Status

Tristar Centennial Medical Center

Nashville, Tennessee, United States

Site Status

Methodist Hospital

San Antonio, Texas, United States

Site Status

START San Antonio

San Antonio, Texas, United States

Site Status

Pan American Center for Oncology Trials, LLC

Rio Piedras, , Puerto Rico

Site Status

Countries

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United States Puerto Rico

Related Links

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https://pmiform.com/clinical-trial-info-request?StudyID=C5941001

To obtain contact information for a study center near you, click here.

Other Identifiers

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2025-521499-69-00

Identifier Type: CTIS

Identifier Source: secondary_id

C5941001

Identifier Type: -

Identifier Source: org_study_id

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