NCT07227012 Symbiotic-GI-13: A Study to Learn About Study Medicine Called PF-08634404 as a Single Treatment and Combination Treatment in Adult Participants With a Liver Cancer Called Hepatocellular Carcinoma, That is Too Advanced to be Removed by Surgery and May Have Spread to Other Parts of the Body.
| NCT ID | NCT07227012 |
| Status | Recruiting |
| Phase | Phase 1, Phase 2 |
| Sponsor | Pfizer |
| Condition | Carcinoma, Hepatocellular |
| Study Type | INTERVENTIONAL |
| Enrollment | 138 participants |
| Start Date | 2025-12-01 |
| Primary Completion | 2027-10-18 |
Eligibility & Interventions
Eligibility Fast-Check
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What to Expect as a Participant
You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.
Phase 1 is the earliest stage of human testing — safety and dosage are the primary focus. Visits are frequent and medical supervision is intensive. You will be among the first people to receive this treatment.
This trial targets 138 participants in total. It began in 2025-12-01 with a primary completion date of 2027-10-18.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
The purpose of this study is to learn about the effects of study medicine (PF-08634404) when given alone or with another antibody (ipilimumab) for the treatment of a type of liver cancer called hepatocellular carcinoma (HCC) that is either locally advanced (spread to nearby tissues) or has spread to other parts of the body. To join the study, participants must meet the following conditions: * Be 18 years or older. * Have locally advanced or metastatic HCC. * Is not a candidate for complete surgical or loco-regional therapies. * Have not received any whole-body treatment for HCC. Participants will receive PF-08634404 either alone or in combination with ipilimumab. The medicine will be given through intravenous (IV) infusions, which means it will be administered directly into a vein. All treatments will take place at clinical trial sites, where trained medical staff will monitor participants during and after each visit.
Eligibility Criteria
Inclusion Criteria: * 18 years of age or older at screening. * Locally advanced or metastatic HCC with diagnosis confirmed by histology/cytology or clinically by AASLD criteria (for patients with cirrhosis). Participants without cirrhosis require histological confirmation of diagnosis. * Disease that is not amenable to curative surgical and/or locoregional therapies, or progressive disease after surgical and/or locoregional therapies. * At least 1 measurable (as defined by RECIST 1.1 per investigator) and untreated lesion. * Adequate hepatic, liver, and renal function * No prior systemic therapy for HCC. * ECOG performance status 0 or 1 * Child-Pugh Class A Key Exclusion Criteria: * Moderate or severe ascites. * History of hepatic encephalopathy. * Participants with known active CNS lesions, including leptomeningeal metastasis, brainstem, meningeal, or spinal cord metastases or compression. * Clinically significant risk of hemorrhage or fistula. * Participants with any history of another malignancy within 3 years. * History of allogeneic organ transplantation and allogeneic hematopoietic stem cell transplantation. * Participants with active autoimmune diseases requiring systemic treatment within the past 2 years. * Clinically significant cardiovascular disease within 6 months prior to the first dose. * Major surgery or severe trauma within 4 weeks prior to the first dose or planned major surgery during the study. * History of severe bleeding tendency or coagulation dysfunction. * History of severe ulcers, unhealed wounds, gastrointestinal perforation, abdominal fistula, gastrointestinal obstruction, intra-abdominal abscess, or acute gastrointestinal bleeding, including bleeding event due to esophageal and/or gastric varices, within 6 months prior to the first dose. * Participants with acute, chronic or symptomatic infections. * Participants with history of immunodeficiency.
Contact & Investigator
Pfizer CT.gov Call Center
STUDY DIRECTOR
Pfizer
Frequently Asked Questions
Who can join the NCT07227012 clinical trial?
This trial is open to participants of all sexes, aged 18 Years or older, studying Carcinoma, Hepatocellular. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
What phase is the NCT07227012 trial and what does that mean for participants?
Phase 1 trials are the first stage of human testing. The primary goal is to assess safety and determine appropriate dosage levels. Participants are closely monitored. These trials typically involve a small number of volunteers.
Is NCT07227012 currently recruiting?
Yes, NCT07227012 is actively recruiting participants. Contact the research team at ClinicalTrials.gov_Inquiries@pfizer.com for enrollment information.
Where is the NCT07227012 trial being conducted?
This trial is being conducted at Los Angeles, United States, Los Angeles, United States, Los Angeles, United States, Los Angeles, United States and 11 additional locations.
Who is sponsoring the NCT07227012 clinical trial?
NCT07227012 is sponsored by Pfizer. The principal investigator is Pfizer CT.gov Call Center at Pfizer. The trial plans to enroll 138 participants.