Carcinoma, Renal CellPhase 1/2NCT07227415
Symbiotic-GU-08: 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
A Phase 1/2 study testing PF-08634404, Ipilimumab and Axitinib in people with Carcinoma, Renal Cell and Advanced Renal Cell Carcinoma, run by Pfizer at 183 sites in 6 countries.
Trial 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). Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Carcinoma, Renal Cell, Advanced Renal Cell Carcinoma, Renal Cancer
- What is being tested?
- PF-08634404, Ipilimumab and Axitinib
- Type of treatment
- Pill or oral medicine, Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 224 participants
- Where
- 183 sitesin 6 countries
- Study dates
- 10 Feb 2026to 1 Nov 2028
- Phase
- Phase 1/2
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- 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
Who cannot join
- 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
Show all 12Show fewer
- 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 or acute gastrointestinal bleeding within 6 months prior to the first dose
- Acute, chronic or symptomatic infections
- Participants with history of immunodeficiency
Trial locations and contacts
183 sites in 6 countries. Contact the study team or a site near you to ask about taking part.
183 sites in 6 countries
United States160 sites, 160 recruiting
- Recruiting
New York Oncology Hematology, P.C.
Albany, New York, 12206
- Not yet recruiting
UCLA Hematology/Oncology - Alhambra
Alhambra, California, 91801
- Not yet recruiting
UCLA Hematology/Oncology - Atascadero
Atascadero, California, 93422
- Recruiting
Rocky Mountain Cancer Centers,LLP
Aurora, Colorado, 80012
- Recruiting
Clinical and Translational Research Center(CTRC)
Aurora, Colorado, 80045
- Recruiting
University of Colorado Hospital - Anschutz Inpatient Pavilion (AIP)
Aurora, Colorado, 80045
- Recruiting
University of Colorado Hospital - Anschutz Outpatient Pavilion (AOP)
Aurora, Colorado, 80045
- Recruiting
University of Colorado Hospital-Anschutz Cancer Pavilion (ACP)
Aurora, Colorado, 80045
- Recruiting
Texas Oncology - Central South
Austin, Texas, 78705
- Recruiting
Texas Oncology - Central South
Austin, Texas, 78731
- Recruiting
Texas Oncology - Central South
Austin, Texas, 78745
- Recruiting
Texas Oncology - Central South
Austin, Texas, 78758
- Recruiting
MSK Basking Ridge
Basking Ridge, New Jersey, 07920
- Recruiting
Texas Oncology - Gulf Coast
Beaumont, Texas, 77702
- Recruiting
Oncology & Hematology Associates of Southwest Virginia, Inc., DBA Blue Ridge Cancer Care
Blacksburg, Virginia, 24060
- Recruiting
Brigham and Women's Hospital
Boston, Massachusetts, 02115
- Recruiting
Dana-Farber Cancer Institute
Boston, Massachusetts, 02215
- Not yet recruiting
UCLA Hematology/Oncology - Burbank
Burbank, California, 91505
- Recruiting
Minnesota Oncology Hematology, P.A.
Burnsville, Minnesota, 55337
- Recruiting
Minnesota Oncology Hematology, P.A.
Chaska, Minnesota, 55318
- Recruiting
Tennessee Oncology, PLLC- Chattanooga Downtown
Chattanooga, Tennessee, 37403
- Recruiting
Tennessee Oncology, PLLC - Chattanooga Med Park II
Chattanooga, Tennessee, 37404
- Recruiting
Tennessee Oncology, PLLC - Chattanooga Memorial
Chattanooga, Tennessee, 37404
- Recruiting
Tennessee Oncology, PLLC - Investigational Drug Services/Supply Storage
Chattanooga, Tennessee, 37404
- Recruiting
Tennessee Oncology, PLLC- Chattanooga East
Chattanooga, Tennessee, 37421
- Recruiting
Siteman Cancer Center - St. Peters
City of Saint Peters, Missouri, 63376
- Recruiting
New York Oncology Hematology - Clifton Park Cancer Center
Clifton Park, New York, 12065
- Recruiting
MSK Commack
Commack, New York, 11725
- Not yet recruiting
The University of Texas, MD Anderson Cancer Center - Conroe
Conroe, Texas, 77384
- Recruiting
Tennessee Oncology, PLLC- Cookeville
Cookeville, Tennessee, 38501
- Recruiting
Minnesota Oncology Hematology, P.A.
Coon Rapids, Minnesota, 55433
- Recruiting
Siteman Cancer Center - West County
Creve Coeur, Missouri, 63141
- Recruiting
University of Texas Southwestern Medical Center - Simmons Cancer Center
Dallas, Texas, 75235
- Recruiting
University of Texas Southwestern Medical Center-William P. Clements Jr. University Hospital
Dallas, Texas, 75235
- Recruiting
University of Texas Southwestern Simmons Cancer Center - Redbird
Dallas, Texas, 75237
- Recruiting
University of Texas Southwestern Medical Center-Zale Lipshy University Hospital
Dallas, Texas, 75390
- Recruiting
UT Southwestern Medical Center
Dallas, Texas, 75390
- Recruiting
UCHealth Cherry Creek Medical Center
Denver, Colorado, 80206
- Recruiting
Rocky Mountain Cancer Centers,LLP
Denver, Colorado, 80218
- Recruiting
Tennessee Oncology, PLLC-Dickson
Dickson, Tennessee, 37055
- Recruiting
City of Hope (City of Hope National Medical Center, City of Hope Medical Center)
Duarte, California, 91010
- Recruiting
City of Hope Investigational Drug Services (IDS)
Duarte, California, 91010
- Recruiting
Minnesota Oncology Hematology, P.A.
Edina, Minnesota, 55435
- Recruiting
UC San Diego Medical Center - Encinitas
Encinitas, California, 92024
- Not yet recruiting
UCLA Hematology/Oncology- Encino
Encino, California, 91436
- Recruiting
Virginia Cancer Specialists, PC
Fairfax, Virginia, 22031
- Recruiting
Highlands Oncology Group
Fayetteville, Arkansas, 72703
- Recruiting
Siteman Cancer Center - North County
Florissant, Missouri, 63031
- Recruiting
University of Texas Southwestern Simmons Cancer Center - Fort Worth
Fort Worth, Texas, 76104
- Recruiting
Tennessee Oncology, PLLC- Franklin Proton Center
Franklin, Tennessee, 37067
- Recruiting
Tennessee Oncology, PLLC-Franklin
Franklin, Tennessee, 37067
- Recruiting
Tennessee Oncology, PLLC-Gallatin
Gallatin, Tennessee, 37066
- Recruiting
Texas Oncology - Central South
Harlingen, Texas, 78550
- Recruiting
MSK Westchester
Harrison, New York, 10604
- Recruiting
Tennessee Oncology, PLLC-Hendersonville
Hendersonville, Tennessee, 37075
- Recruiting
Highlands Ranch Hospital
Highlands Ranch, Colorado, 80129
- Recruiting
Texas Oncology - Gulf Coast
Houston, Texas, 77024
- Not yet recruiting
University of Texas MD Anderson Cancer Center
Houston, Texas, 77030
- Recruiting
Texas Oncology - Gulf Coast
Houston, Texas, 77054
- Not yet recruiting
The University of Texas, MD Anderson Cancer Center - West Houston
Houston, Texas, 77079
- Recruiting
Minnesota Oncology Hematology, P.A.
Hudson, Wisconsin, 54016
- Not yet recruiting
UCLA Hematology/Oncology- Irvine
Irvine, California, 92604
- Recruiting
City of Hope at Irvine Lennar
Irvine, California, 92618
- Recruiting
City of Hope Investigational Drug Services (IDS)
Irvine, California, 92618
- Recruiting
US Oncology Investigational Products Center (IPC)
Irving, Texas, 75063
- Recruiting
US Oncology Investigational Products Center
Irving, Texas, 75063
- Recruiting
Mayo Clinic Pharmacy
Jacksonville, Florida, 32224
- Recruiting
UC San Diego / Moores Cancer Center
La Jolla, California, 92037
- Recruiting
UC San Diego Koman Family Outpatient Pavilion
La Jolla, California, 92037
- Recruiting
UC San Diego Medical Center - La Jolla (Jacobs Medical Center / Thornton Pavilion)
La Jolla, California, 92037
- Recruiting
UC San Diego Sulpizio Cardiovascular Center
La Jolla, California, 92037
- Not yet recruiting
UCLA Hematology/Oncology - Laguna Hills
Laguna Hills, California, 92653
- Recruiting
Orlando Health Cancer Institute
Lake Mary, Florida, 32746
- Recruiting
Rocky Mountain Cancer Centers, LLP
Lakewood, Colorado, 80228
- Not yet recruiting
The University of Texas, MD Anderson Cancer Center - League City
League City, Texas, 77573
- Recruiting
Tennessee Oncology, PLLC-Lebanon
Lebanon, Tennessee, 37090
- Recruiting
Rocky Mountain Cancer Centers,LLP
Lone Tree, Colorado, 80124
- Recruiting
UC Health Lone Tree Medical Center
Lone Tree, Colorado, 80124
- Recruiting
City of Hope
Long Beach, California, 90813
- Recruiting
Memorial Sloan Kettering Cancer Center - Investigational Drug Service Pharmacy
Long Island City, New York, 11101
- Not yet recruiting
Investigational Drug Services, Bowyer Pharmacy
Los Angeles, California, 90095
- Not yet recruiting
Ronald Reagan UCLA Medical Center, Drug Information Center
Los Angeles, California, 90095
- Not yet recruiting
UCLA Hematology/Oncology
Los Angeles, California, 90095
- Recruiting
Oncology & Hematology Associates of Southwest Virginia, Inc., DBA Blue Ridge Cancer Care
Low Moor, Virginia, 24457
- Recruiting
Minnesota Oncology Hematology, P.A.
Maple Grove, Minnesota, 55369
- Recruiting
Minnesota Oncology Hematology, P.A.
Maplewood, Minnesota, 55109
- Not yet recruiting
UCLA Hematology/Oncology - Marina del Rey
Marina del Rey, California, 90292
- Recruiting
Texas Oncology - Central South
McAllen, Texas, 78503
- Recruiting
MSK Monmouth
Middletown, New Jersey, 07748
- Recruiting
MSK Bergen
Montvale, New Jersey, 07645
- Recruiting
Tennessee Oncology, PLLC-Mount Juliet
Mount Juliet, Tennessee, 37122
- Recruiting
Tennessee Oncology, PLLC-Murfreesboro
Murfreesboro, Tennessee, 37129
- Recruiting
Grand Strand Medical Center
Myrtle Beach, South Carolina, 295724607
- Recruiting
Carolina Urologic Research Center, LLC
Myrtle Beach, South Carolina, 29572
- Recruiting
Parkway Surgery Center
Myrtle Beach, South Carolina, 29572
- Recruiting
Sarah Cannon Research Institute
Nashville, Tennessee, 37203
- Recruiting
SCRI Oncology Partners
Nashville, Tennessee, 37203
- Recruiting
Tennessee Oncology, PLLC- Elliston Place Plaza
Nashville, Tennessee, 37203
- Recruiting
Tennessee Oncology, PLLC-Elliston Place Plaza Medical Oncology &Hematology
Nashville, Tennessee, 37203
- Recruiting
Tennessee Oncology, PLLC-Investigational Drug Services
Nashville, Tennessee, 37203
- Recruiting
Tennessee Oncology, PLLC- Saint Thomas West
Nashville, Tennessee, 37205
- Recruiting
Tennessee Oncology, PLLC- Skyline
Nashville, Tennessee, 37207
- Recruiting
Tennessee Oncology, PLLC- Southern Hills
Nashville, Tennessee, 37211
- Recruiting
Henry-Joyce Cancer Clinic
Nashville, Tennessee, 37232
- Recruiting
Icahn School of Medicine at Mount Sinai
New York, New York, 10029
- Recruiting
Evelyn H. Lauder Breast and Imaging Center (BAIC)
New York, New York, 10065
- Recruiting
Memorial Sloan Kettering Cancer Center - Main Campus
New York, New York, 10065
- Recruiting
Sidney Kimmel Center for Prostate and Urological Cancers - Memorial Sloan Kettering Cancer Center
New York, New York, 10065
- Recruiting
Dana-Farber Cancer Institute - Chestnut Hill
Newton, Massachusetts, 02467
- Recruiting
Orlando Health Ambulatory Care Center
Orlando, Florida, 32806
- Recruiting
Orlando Health Cancer Institute
Orlando, Florida, 32806
- Recruiting
Orlando Health Orlando Regional Medical Center
Orlando, Florida, 32806
- Not yet recruiting
UCLA Hematology/Oncology - Pasadena
Pasadena, California, 91105
- Recruiting
Texas Oncology - Gulf Coast
Pearland, Texas, 77584
- Recruiting
Mayo Clinic Building- Phoenix
Phoenix, Arizona, 85054
- Not yet recruiting
UCLA Hematology/Oncology - Porter Ranch
Porter Ranch, California, 91326
- Recruiting
Northwest Cancer Specialists, P.C.
Portland, Oregon, 97227
- Recruiting
University of Texas Southwestern Simmons Cancer Center - Richardson/Plano
Richardson, Texas, 75080
- Recruiting
Tennessee Oncology, PLLC- Ringgold
Ringgold, Georgia, 30736
- Recruiting
Oncology & Hematology Associates of Southwest Virginia, Inc., DBA Blue Ridge Cancer Care
Roanoke, Virginia, 24014
- Recruiting
Mayo Clinic Hospital, Methodist Campus, Research Pharmacy
Rochester, Minnesota, 55902
- Recruiting
Mayo Clinic Cancer Center Outpatient Pharmacy
Rochester, Minnesota, 55905
- Recruiting
Highlands Oncology Group
Rogers, Arkansas, 72758
- Recruiting
Oncology & Hematology Associates of Southwest Virginia, Inc., DBA Blue Ridge Cancer Care
Salem, Virginia, 24153
- Recruiting
UC San Diego Medical Center - Bankers Hill
San Diego, California, 92101
- Recruiting
UC San Diego McGrath Outpatient Pavilion - Hillcrest
San Diego, California, 92103
- Recruiting
UC San Diego Medical Center - Hillcrest
San Diego, California, 92103
- Recruiting
UC San Diego Medical Center - Rancho Bernardo
San Diego, California, 92127
- Not yet recruiting
UCLA Hematology/Oncology - San Luis Obispo
San Luis Obispo, California, 93401
- Not yet recruiting
UCLA Hematology/Oncology- Santa Barbara
Santa Barbara, California, 93101
- Not yet recruiting
UCLA Hematology/Oncology - Santa Monica
Santa Monica, California, 90404
- Recruiting
Mayo Clinic Arizona
Scottsdale, Arizona, 85259
- Recruiting
Fred Hutchinson Cancer Center
Seattle, Washington, 98109
- Recruiting
University Of Washington Medical Center
Seattle, Washington, 98195
- Recruiting
Tennessee Oncology, PLLC- Shelbyville
Shelbyville, Tennessee, 37160
- Recruiting
Memorial Hospital
Shiloh, Illinois, 62269
- Recruiting
Siteman Cancer Center - Shiloh
Shiloh, Illinois, 62269
- Recruiting
Tennessee Oncology, PLLC- Smyrna
Smyrna, Tennessee, 37167
- Recruiting
Highlands Oncology Group, PA
Springdale, Arkansas, 72762
- Recruiting
Siteman Cancer Center
St Louis, Missouri, 63108
- Recruiting
Barnes-Jewish Hospital
St Louis, Missouri, 63110
- Recruiting
Washington University School of Medicine - Siteman Cancer Center
St Louis, Missouri, 63110
- Recruiting
Siteman Cancer Center - South County
St Louis, Missouri, 63129
- Not yet recruiting
The University of Texas, MD Anderson Cancer Center - Sugar Land
Sugar Land, Texas, 77478
- Recruiting
Texas Oncology - Gulf Coast
Sugar Land, Texas, 77479
- Recruiting
Texas Oncology - Gulf Coast
The Woodlands, Texas, 77380
- Not yet recruiting
UCLA Hematology/Oncology- Torrance
Torrance, California, 90505
- Recruiting
MSK Nassau
Uniondale, New York, 11553
- Recruiting
City of Hope UPLAND
Upland, California, 91786
- Not yet recruiting
UCLA Hematology/Oncology - Santa Clarita
Valencia, California, 91355
- Recruiting
Northwest Cancer Specialists, P.C.
Vancouver, Washington, 98684
- Not yet recruiting
UCLA Hematology/Oncology- Ventura
Ventura, California, 93003
- Recruiting
UC San Diego Medical Center - Vista
Vista, California, 92081
- Recruiting
Texas Oncology - Central South
Waco, Texas, 76712
- Recruiting
Texas Oncology - Gulf Coast
Webster, Texas, 77598
- Recruiting
Texas Oncology - Central South
Weslaco, Texas, 78596
- Not yet recruiting
UCLA Hematology/Oncology- Westlake
Westlake Village, California, 91361
- Recruiting
Minnesota Oncology Hematology, P.A.
Woodbury, Minnesota, 55125
- Recruiting
Oncology & Hematology Associates of Southwest Virginia, Inc., DBA Blue Ridge Cancer Care
Wytheville, Virginia, 24382
- Recruiting
City Of Hope - Chicago
Zion, Illinois, 60099
China7 sites, 7 recruiting
- Recruiting
Beijing Cancer hospital
Beijing, Beijing Municipality, 100142
- Recruiting
Hunan Cancer Hospital
Changsha, Hunan, 410013
- Recruiting
Chongqing University Cancer Hospital
Chongqing, Chongqing Municipality, 400030
- Recruiting
Qilu Hospital of Shandong University
Jinan, Shandong, 250012
- Recruiting
Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School
Nanjing, Jiangsu, 210008
- Recruiting
The first affiliated hospital of Ningbo university
Ningbo, Zhejiang, 315010
- Recruiting
Union Hospital Tongji Medical College Huazhong University of Science and Technology
Wuhan, Hubei, 430022
Spain6 sites, 6 recruiting
- Recruiting
Hospital de la Santa Creu i Sant Pau
Barcelona, Catalunya [cataluña], 08041
- Recruiting
Vall d'Hebron Institute of Oncology (VHIO)
Barcelona, 08035
- Recruiting
Hospital Clinico San Carlos
Madrid, 28040
- Recruiting
Hospital Universitario Fundación Jiménez Díaz
Madrid, 28040
- Recruiting
Hospital Universitario 12 de Octubre
Madrid, 28041
- Recruiting
Hospital Universitario Virgen de la Victoria
Málaga, Málaga, 29010
Japan5 sites, 5 recruiting
- Recruiting
National Hospital Organization Kyushu Cancer Center
Fukuoka, 811-1395
- Recruiting
Keio university hospital
Shinjuku-ku, Tokyo, 1608582
- Recruiting
The University of Osaka Hospital
Suita, Osaka, 565-0871
- Recruiting
Yamagata University Hospital
Yamagata, 990-9585
- Recruiting
Yokohama City University Medical Center
Yokohama, Kanagawa, 232-0024
Germany3 sites, 3 recruiting
- Not yet recruiting
Charité Universitaetsmedizin Berlin
Berlin, 10117
- Recruiting
Universitätsklinikum Carl Gustav Carus an der TU Dresden
Dresden, Saxony, 01307
- Not yet recruiting
Heidelberg University Hospital
Heidelberg, Baden-Wurttemberg, 69120
Australia2 sites, 2 recruiting
- Recruiting
Icon Cancer Centre Wesley
Auchenflower, Queensland, 4066
- Recruiting
Monash Health
Clayton, Victoria, 3168
About this study
Official title: 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
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.
- Conditions
- Carcinoma, Renal Cell, Advanced Renal Cell Carcinoma, Renal Cancer, Renal Neoplasm, Clear Cell Renal Cell Carcinoma, Metastatic Renal Cell Carcinoma
- Being tested
- PF-08634404, Ipilimumab, Axitinib, Casdatifan
- Keywords
- Renal cell carcinoma, renal cancer, renal neoplasm
- Medical subject headings
- Carcinoma, Renal Cell, Kidney Neoplasms, Clear-cell metastatic renal cell carcinoma, Carcinoma, Neoplasm Metastasis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
PF-08634404Drug
Also called SSGJ-707
Concentrate for solution for infusion
IpilimumabDrug
Also called yervoy
Solution for infusion
AxitinibDrug
Tablet
CasdatifanDrug
Tablet
| Study group | Role | What they receive |
|---|---|---|
| Cohort A | Experimental | Participants will receive PF-08634404 IV. Receives: Drug: PF-08634404 |
| Cohort B | Experimental | Participants will receive PF-08634404 in combination with ipilimumab. Receives: Drug: PF-08634404; Drug: Ipilimumab |
| Cohort C | Experimental | Participants will receive PF-08634404 IV in combination with axitinib. Receives: Drug: PF-08634404; Drug: Axitinib |
| Cohort D | Experimental | Participants will receive PF-08634404 in combination with Casdatifan. Receives: Drug: PF-08634404; Drug: Casdatifan |
What is being measured
The primary outcome is the main question the study is designed to answer.
Confirmed objective response rate (ORR) using RECIST v1.1 as assessed by investigator
ORR 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.
Measured: Up to approximately 3 years
Number of Participants with Treatment Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)
AEs as characterized by type, frequency, severity (as graded by NCI CTCAE version 5.0), timing, seriousness, and relationship to study intervention.
Measured: Through 90 days after the last study intervention (Up to approximately 3 years)
Number of participants with dose limiting toxicity (DLT)
The number of participants who experienced DLTs during the DLT evaluation period in Cohort B (combination 1) and Cohort C (combination 2).
Measured: Though end of DLT evaluation period (Up to approximately 3 years)
Secondary outcomes (6)
Duration of Response (DOR) per RECIST v1.1 by investigator
DOR 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.
Measured: Up to approximately 3 years
Progression Free Survival (PFS) per RECIST v1.1 by investigator
Progression-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.
Measured: Up to approximately 3 years
Overall Survival (OS)
Overall survival defined as the time from the date of randomization to the date of death due to any cause.
Measured: Up to approximately 3 years
Number of Participants With Clinical Laboratory Abnormalities
laboratory abnormalities as characterized by type, frequency, severity (as graded by NCI CTCAE version 5.0) and timing
Measured: Time from the date of first dose of study intervention through 30-37 days after last dose of study intervention (approximately 3 years)
Pharmacokinetics (PK): Serum concentration of PF-08634404
Pre-dose and post dose concentrations of PF-08634404
Measured: Up to 37 days after the last dose of treatment
Incidence of Anti-Drug Antibody (ADA) against PF-08634404
To evaluate the immunogenicity of PF-08634404
Measured: Up to 37 days after the last dose of treatment
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Nov 2025
- Study start10 Feb 2026
- Primary completion2 Nov 2027 (estimated)
- Study completion1 Nov 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Carcinoma, Renal CellStudies of the same condition, open and under way.
- More trials run by PfizerThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1/2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Sequential
- Masking
- None (open label)
- Enrolment
- 224 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Pfizer
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Pfizer CT.gov Call Center, Study director, Pfizer
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07227415
- Sponsor's protocol ID
- C6461008
- Other IDs
- 2025-523524-53-00, Symbiotic-GU-08, 2025
- Status last verified
- Oct 2026
- First submitted
- 7 Nov 2025
- Last updated
- 8 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.
Study at a glance
From the registry record, last updated by the sponsor on 8 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- 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
- ClinicalTrials.gov ID
- NCT07227415
- Acronym / sponsor ID
- C6461008
- Conditions
- Carcinoma, Renal Cell, Advanced Renal Cell Carcinoma, Renal Cancer, Renal Neoplasm, Clear Cell Renal Cell Carcinoma, Metastatic Renal Cell Carcinoma
- Keywords
- Renal cell carcinoma, renal cancer, renal neoplasm
- Phase
- Phase 1/2
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 224 participants (estimated)
- Lead sponsor
- PfizerIndustry (pharma, biotech, devices)
- Study start
- 10 Feb 2026 (actual)
- Primary completion
- 2 Nov 2027 (estimated)
- Study completion
- 1 Nov 2028 (estimated)
- First posted
- 12 Nov 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Sequential
- Masking
- None (open label)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Cohort A | Experimental | Drug: PF-08634404Participants will receive PF-08634404 IV. |
| Cohort B | Experimental | Drug: PF-08634404, Drug: IpilimumabParticipants will receive PF-08634404 in combination with ipilimumab. |
| Cohort C | Experimental | Drug: PF-08634404, Drug: AxitinibParticipants will receive PF-08634404 IV in combination with axitinib. |
| Cohort D | Experimental | Drug: PF-08634404, Drug: CasdatifanParticipants will receive PF-08634404 in combination with Casdatifan. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (7 listed)
- 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)
Key exclusion criteria (12 listed)
- 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
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| PF-08634404Also: SSGJ-707Concentrate for solution for infusion | Drug | Cohort A, Cohort B, Cohort C, Cohort D |
| IpilimumabAlso: yervoySolution for infusion | Drug | Cohort B |
| AxitinibTablet | Drug | Cohort C |
| CasdatifanTablet | Drug | Cohort D |
Primary outcome
Confirmed objective response rate (ORR) using RECIST v1.1 as assessed by investigator
Time frame: Up to approximately 3 years
ORR 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)
Time frame: 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)
Time frame: 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).
6 secondary outcomes
Duration of Response (DOR) per RECIST v1.1 by investigator
Time frame: Up to approximately 3 years
Progression Free Survival (PFS) per RECIST v1.1 by investigator
Time frame: Up to approximately 3 years
Overall Survival (OS)
Time frame: Up to approximately 3 years
Number of Participants With Clinical Laboratory Abnormalities
Time frame: Time from the date of first dose of study intervention through 30-37 days after last dose of study intervention (approximately 3 years)
Pharmacokinetics (PK): Serum concentration of PF-08634404
Time frame: Up to 37 days after the last dose of treatment
Incidence of Anti-Drug Antibody (ADA) against PF-08634404
Time frame: Up to 37 days after the last dose of treatment
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 8 Oct 2026.
- To obtain contact information for a study center near you, click here.Link provided by the sponsor.
- Individual participant dataSharing planned: No. Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Pfizer CT.gov Call Center study director
Pfizer
183 sites in 6 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1/2 study testing PF-08634404, Ipilimumab and Axitinib in people with Carcinoma, Renal Cell and Advanced Renal Cell Carcinoma, run by Pfizer at 183 sites in 6 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 8 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 183 sites in United States, China, Spain, Japan, Germany and 1 more country. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this combined phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Pfizer CT.gov Call Center (1-800-718-1021, ClinicalTrials.gov_Inquiries@pfizer.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Confirmed objective response rate (ORR) using RECIST v1.1 as assessed by investigator (time frame: Up to approximately 3 years). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Oct 2026.