A Phase Ⅰ/Ⅱa Study of HMPL-A251 in Participants With Advanced or Metastatic HER2-expressing Solid Tumors

NCT07228247 · Status: RECRUITING · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 147

Last updated 2025-12-29

No results posted yet for this study

Summary

This is a first-in-human (FIH), phase Ⅰ/Ⅱa, open-label, multicenter clinical study of HMPL-A251 monotherapy in adult participants with unresectable, advanced or metastatic HER2-expressing solid tumors.

Conditions

  • Solid Tumors, Adult

Interventions

DRUG

HMPL-A251

Six dose cohorts are planned for the Dose Escalation phase; at least three participants with solid tumors will be enrolled in each dose cohort. Bayesian optimal interval design with backfill (BF-BOIN, Zhao, 2023) will be used to guide dose escalation and determine the MTD and/or RDE of HMPL-A251. All study participants will receive HMPL-A251 as IV infusion until PD, intolerable toxicity, or other protocol-specified criteria for ending study treatment, whichever occurs first.

DRUG

HMPL-A251

Participants will be randomized in a 1:1 ratio to receive treatment in two RDEs levels (approximately 15 participants per dose level) for each cohort. All study participants will receive HMPL-A251 as IV infusion until PD, intolerable toxicity, or other protocol-specified criteria for ending study treatment, whichever occurs first.

Sponsors & Collaborators

  • Hutchmed

    lead INDUSTRY

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
SEQUENTIAL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-12-16
Primary Completion
2028-11-30
Completion
2028-12-31
FDA Drug
Yes

Countries

  • United States
  • China

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07228247 on ClinicalTrials.gov