NCT06600321

Brief Summary

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.

Trial Health

80
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
158

participants targeted

Target at P75+ for phase_1

Timeline
19mo left

Started Dec 2024

Typical duration for phase_1

Geographic Reach
3 countries

23 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress48%
Dec 2024Oct 2027

First Submitted

Initial submission to the registry

September 13, 2024

Completed
6 days until next milestone

First Posted

Study publicly available on registry

September 19, 2024

Completed
3 months until next milestone

Study Start

First participant enrolled

December 30, 2024

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2027

Expected
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

October 31, 2027

Last Updated

May 1, 2026

Status Verified

April 1, 2026

Enrollment Period

2.8 years

First QC Date

September 13, 2024

Last Update Submit

April 29, 2026

Conditions

Keywords

Hepatocellular carcinoma (HCC)PembrolizumabCTNNB1Liver diseaseLiver cancerLiver neoplasmsCarcinoma, hepatocellularWNT pathway activating

Outcome Measures

Primary Outcomes (4)

  • Frequency of Adverse Events (AEs)

    From the time of first dose of study drug administration to 30-37 days after the last dose

  • Severity of AEs

    From the time of first dose of study drug administration to 30-37 days after the last dose

  • Dose Escalation: Occurrence of Dose-limiting Toxicities (DLTs)

    From the time of first dose of study drug administration up to 21 days

  • Dose Expansion: Antitumor Activity as assessed by Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1)

    Up to 30-37 Days after the last dose

Secondary Outcomes (3)

  • Concentrations of ALN-BCAT in Plasma

    Up to the end of the last study drug administration

  • Percent Change in Gene that Encodes ß-catenin Protein (CTNNB1) Messenger Ribonucleic Acid (mRNA) Expression Comparing Pre- treatment with On-treatment Tumor Samples

    Up to 30 days

  • Dose Escalation: Antitumor Activity as assessed by RECIST v1.1

    Up to 30-37 Days after the last dose

Study Arms (4)

Monotherapy: Dose Escalation

EXPERIMENTAL

Patients will be administered multiple doses of ALN-BCAT.

Drug: ALN-BCAT

Monotherapy: Dose Expansion

EXPERIMENTAL

Patients will be administered multiple doses of ALN-BCAT.

Drug: ALN-BCAT

Combination Therapy: Dose Escalation

EXPERIMENTAL

Patients will be administered multiple doses of ALN-BCAT in combination with pembrolizumab.

Drug: ALN-BCATDrug: Pembrolizumab

Combination Therapy: Dose Expansion

EXPERIMENTAL

Patients will be administered multiple doses of ALN-BCAT in combination with pembrolizumab.

Drug: ALN-BCATDrug: Pembrolizumab

Interventions

Administered by intravenous (IV) infusion

Combination Therapy: Dose EscalationCombination Therapy: Dose ExpansionMonotherapy: Dose EscalationMonotherapy: Dose Expansion

Administered by intravenous (IV) infusion

Also known as: Keytruda, MK-3475
Combination Therapy: Dose EscalationCombination Therapy: Dose Expansion

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • 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

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (23)

Clinical Trial Site

Phoenix, Arizona, 85054, United States

RECRUITING

Clinical Trial Site

La Jolla, California, 92037, United States

RECRUITING

Clinical Trial Site

Los Angeles, California, 90033, United States

RECRUITING

Clinical Trial Site

Jacksonville, Florida, 32224, United States

RECRUITING

Clinical Trial Site

Atlanta, Georgia, 30322, United States

RECRUITING

Clinical Trial Site

Chicago, Illinois, 60637, United States

RECRUITING

Clinical Trial Site

Ann Arbor, Michigan, 48109, United States

RECRUITING

Clinical Trial Site

Rochester, Minnesota, 55905, United States

RECRUITING

Clinical Trial Site

New York, New York, 10029, United States

RECRUITING

Clinical Trial Site

New York, New York, 10032, United States

RECRUITING

Clinical Trial Site

Cleveland, Ohio, 44106, United States

RECRUITING

Clinical Trial Site

Pittsburgh, Pennsylvania, 15232, United States

RECRUITING

Clinical Trial Site

Dallas, Texas, 75390, United States

RECRUITING

Clinical Trial Site

Houston, Texas, 77030, United States

RECRUITING

Clinical Trial Site

San Antonio, Texas, 78229, United States

RECRUITING

Clinical Trial Site

Richmond, Virginia, 23298, United States

RECRUITING

Clinical Trial Site

Milan, 20132, Italy

RECRUITING

Clinical Trial Site

Rozzano, 20089, Italy

RECRUITING

Clinical Trial Site

Verona, 37134, Italy

RECRUITING

Clinical Trial Site

Busan, 49241, South Korea

RECRUITING

Clinical Trial Site

Seongnam, 13496, South Korea

RECRUITING

Clinical Trial Site

Seongnam, 13620, South Korea

RECRUITING

Clinical Trial Site

Seoul, 03722, South Korea

RECRUITING

MeSH Terms

Conditions

Carcinoma, HepatocellularLiver DiseasesLiver Neoplasms

Interventions

pembrolizumab

Condition Hierarchy (Ancestors)

AdenocarcinomaCarcinomaNeoplasms, Glandular and EpithelialNeoplasms by Histologic TypeNeoplasmsDigestive System NeoplasmsNeoplasms by SiteDigestive System Diseases

Study Officials

  • Medical Director

    Alnylam Pharmaceuticals

    STUDY DIRECTOR

Central Study Contacts

Alnylam Clinical Trial Information Line

CONTACT

Alnylam Clinical Trial Information Line

CONTACT

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 13, 2024

First Posted

September 19, 2024

Study Start

December 30, 2024

Primary Completion (Estimated)

September 30, 2027

Study Completion (Estimated)

October 31, 2027

Last Updated

May 1, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Locations