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A Phase Ⅰ/Ⅱa Study of HMPL-A251 in Participants With Advanced or Metastatic HER2-expressing Solid Tumors
Sponsor: Hutchmed
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.
Official title: A Phase Ⅰ/Ⅱa Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Immunogenicity and Preliminary Efficacy of HMPL-A251 in Participants With Advanced or Metastatic HER2-Expressing Solid Tumors
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
147
Start Date
2025-12-16
Completion Date
2028-12-31
Last Updated
2025-12-29
Healthy Volunteers
No
Conditions
Interventions
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.
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.
Locations (11)
SCRI HealthONE
Denver, Colorado, United States
BRCR Global
Plantation, Florida, United States
Memorial Sloan Kettering Cancer Center
New York, New York, United States
Cleveland Clinic Taussig Cancer Center
Cleveland, Ohio, United States
Vanderbilt University Medical Center
Nashville, Tennessee, United States
Peking University First Hospital
Beijing, China
Hunan Cancer Hospital
Changsha, China
Fujian Cancer Hospital
Fujian, China
Sun Yat-sen University Cancer Center
Guangzhou, China
The First Affiliated Hospital of Anhui Medical University
Hefei, China
Henan Cancer Hospital
Zhengzhou, China