Study of ACC-1898 in Adult Participants With Advanced Solid Tumors

Sponsor
AccSalus Biosciences, Inc.
Study ID
NCT07252661
Phase
PHASE1
Status
Not Yet Recruiting

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Conditions

Eligibility Criteria

Sex
ALL
Age
18 Years - N/A
Healthy Volunteers
Not accepted

Interventions

  • ACC-1898 — DRUG
    ACC-1898 is an oral small-molecule tyrosine kinase inhibitor (TKI). Administered once daily by mouth in continuous 21-day cycles. Starting doses range from 80 mg to 300 mg QD, with possible intra-patient dose modifications. Arm(s)/Group(s): * Arm 1 - ACC-1898 Monotherapy * Arm 2 - ACC-1898 Monotherapy Route of Administration: Oral (tablet) Dose Form: Film-coated tablet (20 mg and 40 mg strengths) Treatment Duration: Up to 2 years or until disease progression or unacceptable toxicity.

Study Details

This is a research study of an experimental drug called ACC-1898. ACC-1898 is an oral tyrosine kinase inhibitor (TKI) that blocks several proteins kinases which may help cancer cells grow and spread. The purpose of this Phase 1 clinical trial is to find a safe dose of ACC-1898 and to understand how the body absorbs, distributes, and eliminates the drug (pharmacokinetics / PK). The study will also look for early signs that ACC-1898 may slow or shrink tumors and explore possible biological markers related to drug activity. Adults with advanced or metastatic solid tumors who have no remaining standard treatment options may take part. All participants will receive ACC-1898 tablets by mouth once daily in repeating 21-day cycles. Treatment may continue for up to two years if the cancer does not worsen and side effects are manageable. Safety information, laboratory results and imaging scans (CT or MRI) will be collected regularly. The study will first test different dose levels (dose-escalation phase) and may later expand enrollment in selected tumor types once a recommended dose is found.

Key Dates

First listed
Nov 28, 2025
Start date
Jan 31, 2026
Status verified
Nov 2025
Primary completion
Jun 30, 2027
Completion
Dec 31, 2027

Study Design

Enrollment
40 participants (estimated)
Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT

Arms

  • Experimental: Participants receive ACC-1898 tablets orally once daily (QD) in 21-day cycles
    Dose-Escalation (Part 1): Determine the maximum tolerated dose (MTD) and/or optimal biologic dose (OBD) using an Accelerated Titration → Bayesian Optimal Interval (ATD-BOIN) design. Treatment continues until disease progression, unacceptable toxicity, withdrawal, or study completion
  • Experimental: ACC-1898 Dose Expansion Cohorts
    Participants will receive ACC-1898 tablets orally once daily (QD) in repeating 21-day cycles at dose levels determined from Part 1 (dose escalation). This Phase 1b dose-expansion phase will enroll patients with selected advanced or metastatic solid tumors to further characterize the safety, pharmacokinetics, pharmacodynamics, and preliminary antitumor activity of ACC-1898 at the recommended Part 2 dose(s). Up to three tumor-specific expansion cohorts may be opened. Within each indication, participants may be randomized between two ACC-1898 dose levels that demonstrated acceptable safety and evidence of activity in Part 1. Treatment will continue until disease progression, unacceptable toxicity, withdrawal of consent, or study completion. Paired tumor biopsies and optional blood samples will be collected to explore biomarker and PK/PD correlations.

Primary Outcome Measure

Incidence of Dose-Limiting Toxicities (DLTs) Part 1 (Dose Escalation) [ Time Frame: Cycle 1 (each cycle = 21 days) ]

Central Contacts

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