NCT06600321 · Alnylam Pharmaceuticals
A Study to Evaluate ALN-BCAT in Patients With Hepatocellular Carcinoma
What this study is about
The purpose of the gradually increasing doses part of the study is to characterize the safety and how well patients handle the treatment of ALN-BCAT as treatment given alone and in combination with pembrolizumab; and to determine the recommended dose(s) for expansion (RDFE) of ALN-BCAT as treatment given alone and in combination with pembrolizumab.
View original scientific description
The purpose of the dose escalation part of the study is to characterize the safety and tolerability of ALN-BCAT as monotherapy and in combination with pembrolizumab; and to determine the recommended dose(s) for expansion (RDFE) of ALN-BCAT as monotherapy and in combination with pembrolizumab. The purpose of the dose expansion part of the of the study is to evaluate the antitumor activity of ALN-BCAT as monotherapy and in combination with pembrolizumab; to characterize the safety and tolerability of ALN-BCAT as monotherapy and in combination with pembrolizumab.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Has HCC confirmed histologically or cytologically, or, for patients with liver cirrhosis, clinically by the American Association for the Study of Liver Diseases (AASLD) criteria
- Has had at least one line of systemic therapy for unresectable advanced or metastatic disease
- Has at least one wingless-related integration site (WNT)-pathway activating mutation
- Child-Pugh class A or B7
Exclusion criteria
- Has fibrolamellar HCC, sarcomatoid HCC, or mixed cholangio-HCC tumors
- Has symptomatic extrahepatic disease
- Has received anti-cancer therapy or investigational drugs ≤3 weeks prior to the first dose of study drug Note: other protocol defined inclusion / exclusion criteria apply
Where
- Phoenix, Arizona
- La Jolla, California
- Los Angeles, California
- Jacksonville, Florida
- Atlanta, Georgia
- Chicago, Illinois
- Ann Arbor, Michigan
- Rochester, Minnesota
- New York, New York
- Cleveland, Ohio
- Pittsburgh, Pennsylvania
- Dallas, Texas
And 3 more locations — see the full list below.
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jun 17, 2026 · Source of record for eligibility and locations