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A Study to Learn About the Medicine Called PF-08634404 Dosed Alone and in Combination With Other Anticancer Therapies in Adults With Locally Advanced or Metastatic Renal Cell Cancer

AN INTERVENTIONAL PHASE 1B/2 STUDY TO EVALUATE THE SAFETY AND EFFICACY OF PF-08634404 MONOTHERAPY AND IN COMBINATION WITH OTHER ANTICANCER AGENTS IN ADULT PARTICIPANTS WITH LOCALLY ADVANCED OR METASTATIC RENAL CELL CARCINOMA

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07227415
Enrollment
224
Registered
2025-11-12
Start date
2026-02-10
Completion date
2028-11-01
Last updated
2026-03-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Carcinoma, Renal Cell, Advanced Renal Cell Carcinoma, Renal Cancer, Renal Neoplasm, Clear Cell Renal Cell Carcinoma, Metastatic Renal Cell Carcinoma, Clear-cell Metastatic Renal Cell Carcinoma, Carcinoma, Renal Cell Metastasis, Advanced or Metastatic Renal Cell Carcinoma, Carcinoma, Renal Cell, Advanced, Metastatic Renal Cell Cancer, Metastatic Renal Cell Carcinoma ( mRCC), Metastatic/Advanced Renal Cell Carcinoma

Keywords

Renal cell carcinoma, renal cancer, renal neoplasm

Brief summary

This study is testing a new medicine called PF-08634404 and how it works in adults with advanced Renal Cell Carcinoma (RCC)- a type of kidney cancer that is either locally advanced (spread to nearby tissues) or metastatic (spread to other parts of the body). The study will look at the safety of the study medicine, when given alone or with other anticancer medicines, and how this type of cancer responds to them. To join the study, participants must be adults; with locally advanced or metastatic RCC; who have not received treatment for their advanced kidney cancer. Participants will receive study medicine either alone or with other anticancer medicines. The medicine will be given through intravenous (IV) infusions, which means it will be injected directly into a vein. All treatments will take place at clinical study sites, where trained medical staff will take care of participants during and after each visit.

Interventions

BIOLOGICALPF-08634404

Concentrate for solution for infusion

DRUGCombination 1

Combination Drug 1

DRUGCombination 2

Combination Drug 2

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* 18 years of age or older at screening * Locally advanced (not amenable to curative surgery or radiation therapy) or metastatic RCC with diagnosis confirmed by histology/cytology * At least one measurable (as defined by the investigator) and untreated lesion * Adequate hematologic, hepatic, cardiac and renal function * No prior systemic therapy for RCC (immunotherapy after surgery is allowed if received \>12 months prior) * Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1. * All International Metastatic Renal Cell Carcinoma Database Consortium (IMDC) based risk categories.

Exclusion criteria

Participants may be excluded if they meet any of the following: * Known active brain lesions including leptomeningeal metastasis, brainstem, meningeal or spinal cord metastases or compression. * Clinically significant risk of haemorrhage or fistula * History of another malignancy within 3 years * History of allogeneic organ transplantation and allogeneic hematopoietic stem cell transplantation. * active autoimmune diseases requiring systemic treatment within the past 2 years * uncontrolled cardiac and other comorbidities within 6 months prior to the first dose * Major surgery or severe trauma within 4 weeks before the first dose, or planned major surgery during the study * History of severe bleeding tendency or coagulation dysfunction * History of oesophageal varices, severe ulcers, gastrointestinal perforation, abdominal fistula, gastrointestinal obstruction, intra-abdominal abscess * Acute, chronic or symptomatic infections * Participants with history of immunodeficiency

Design outcomes

Primary

MeasureTime frameDescription
Confirmed objective response rate (ORR) using RECIST v1.1 as assessed by investigatorUp to approximately 3 yearsORR is defined as the proportion of participants in the analysis population having a best overall response (BOR) of confirmed complete response (CR) or confirmed partial response (PR) according to RECIST v1.1 as assessed by investigator.
Number of Participants with Treatment Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)Through 90 days after the last study intervention (Up to approximately 3 years)AEs as characterized by type, frequency, severity (as graded by NCI CTCAE version 5.0), timing, seriousness, and relationship to study intervention.
Number of participants with dose limiting toxicity (DLT)Though end of DLT evaluation period (Up to approximately 3 years)The number of participants who experienced DLTs during the DLT evaluation period in Cohort B (combination 1) and Cohort C (combination 2).

Secondary

MeasureTime frameDescription
Duration of Response (DOR) per RECIST v1.1 by investigatorUp to approximately 3 yearsDOR is defined as the time from the first documentation of objective response (CR or PR that is subsequently confirmed) to the date of first documented disease progression per RECIST v1.1 or death due to any cause, whichever occurs first.
Progression Free Survival (PFS) per RECIST v1.1 by investigatorUp to approximately 3 yearsProgression-free survival is defined as the time from the date of randomization to the date of the first documentation of objective progressive disease (PD) assessed by investigator per RECIST v1.1, or death due to any cause, whichever occurs first.
Overall Survival (OS)Up to approximately 3 yearsOverall survival defined as the time from the date of randomization to the date of death due to any cause.
Number of Participants With Clinical Laboratory AbnormalitiesTime from the date of first dose of study intervention through 30-37 days after last dose of study intervention (approximately 3 years)laboratory abnormalities as characterized by type, frequency, severity (as graded by NCI CTCAE version 5.0) and timing
Pharmacokinetics (PK): Serum concentration of PF-08634404Up to 37 days after the last dose of treatmentPre-dose and post dose concentrations of PF-08634404
Incidence of Anti-Drug Antibody (ADA) against PF-08634404Up to 37 days after the last dose of treatmentTo evaluate the immunogenicity of PF-08634404

Countries

Australia, Japan, United States

Contacts

CONTACTPfizer CT.gov Call Center
ClinicalTrials.gov_Inquiries@pfizer.com1-800-718-1021
STUDY_DIRECTORPfizer CT.gov Call Center

Pfizer

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 3, 2026