A Study to Learn About PF-07921585 Alone or With Other Anti-cancer Medicines in People With Cancer
The purpose of this study is to learn about the safety and effects of the study medicine (called PF-07921585) in people with cancer that has advanced or spread to other parts of the body. This study is seeking participants who have any of the following cancer types: * non-small cell lung cancer * colorectal cancer * bladder cancer * melanoma (a type of skin cancer) * kidney cancer * head and neck cancer Participants will receive the study medicine PF-07921585 alone or in combination with another study medicine called sasanlimab at the study clinic. PF-07921585 will be given as an infusion into a vein or as shots under the skin, once every 3 weeks. Sasanlimab will be given as shots under the skin, also once every 3 weeks. The experiences of participants receiving the study medicine will be studied to help see if the study medicine is safe and effective. Participants may receive study medicine for up to 2 years, depending on how the cancer responds to the study treatment. Participants may continue receiving study medicine after 2 years if there are any benefits from the study treatment. Participants will attend visits once every 3 weeks with the first 9 weeks having more frequent visits, to check the safety of the study treatment.
Ask AI to explain this studyKey things to know
This describes the study’s primary purpose.
The study team can explain what participation involves.
These are broad labels—not an eligibility decision.
Checked against the public recordLast updated Mar 23, 2026 · Source: ClinicalTrials.gov
Ask the study team to confirm whether enrollment is open.
Interventional
Locations may change over time.
Study sponsor
What this study is about
- Purpose
- Treatment
- Study type
- Interventional
- Phase
- Phase 1
- Sponsor
- Pfizer
- Interventions being studied
- Biological: PF-07921585; Biological: Sasanlimab
How this study is categorized
These labels come from structured fields and exact terms in the public record.
Who may be able to participate
The sponsor separates these requirements into two groups. You do not need to interpret them alone—use them to guide a conversation with the study team.
- Key 1. Participants aged ≥18 years or older at the time of informed consent. 2. Tumor types and prior treatment requirements: Participants entering Parts 2 and 3 must have at least 1 measurable lesion. Part 1 and Part 2: Eligible advanced/metastatic tumor types include NSCLC, urothelial carcinoma (UC), renal cell carcinoma (RCC), melanoma, head and neck squamous cell carcinoma (HNSCC), and microsatellite stable colorectal cancer (MSS-CRC). Participants must have demonstrated radiographic progression on standard treatment(s) for their cancer Part 3:
- Cohort 1: Participants with metastatic melanoma with resistance to checkpoint inhibitor therapy and BRAF/MEKi.
- Cohort 2: Participants with metastatic MSS-CRC.
- Cohort 3: Participants with previously untreated metastatic NSCLC. 3. ECOG PS 0 or 1. Key
1. Participants with any other active malignancy within 3 years prior to enrollment. 2. Known or suspected hypersensitivity to, or severe allergic history of, human albumin or anti-PD-(L)1 therapy. 3. History of Grade ≥3 immune-related AE (irAE) or unresolved irAEs prior to first dose of study intervention. Exception: vitiligo and endocrinopathy that is controlled with hormonal therapy. 4. History of venous thromboembolic event \<12 weeks prior to starting study treatment. 5. Active or history of clinically significant gastrointestinal (GI) disease. 6. Active or history of interstitial lung disease or Grade ≥2 pneumonitis. 7. Active or history of clinically significant autoimmune disease. 8. Active bleeding disorder. 9. Participants who have undergone treatment with any investigational IL-12 agent. 10. Active, uncontrolled infections
Important: This is the sponsor’s public criteria, not a determination of eligibility. The study team must review your individual situation.
U.S. locations
- Highlands Oncology GroupFayetteville, Arkansas
- Highlands Oncology GroupRogers, Arkansas
- Highlands Oncology GroupSpringdale, Arkansas
- Presbyterian/St. Lukes Medical CenterDenver, Colorado
- Sarah Cannon Research Institute at HealthONEDenver, Colorado
- Florida Cancer Specialists Sarasota Drug Development UnitSarasota, Florida
- START MidwestGrand Rapids, Michigan
- Sarah Cannon Research Institute- PharmacyNashville, Tennessee
- SCRI Oncology PartnersNashville, Tennessee
Source and freshness
Processed from ClinicalTrials.gov. Last public update: Mar 23, 2026. Always confirm current availability with the study team.