Clinical trial Recruiting at 4 sites Phase 1 Interventional Ages 19 and up

Evaluating AST-201 for GPC3-positive advanced solid tumors

Official title: A Multi-center, Open-label, Dose Escalation and Expansion, Phase 1 Study to Evaluate the Tolerability, Safety and Pharmacokinetics of AST-201 in Patients With GPC3-positive Advanced Solid Tumors

Run by Aptamer Sciences, Inc. · NCT06687941 · Data updated 2026-11-12

This study is testing a new treatment called AST-201 to see if it can help people with advanced solid tumors that have a specific marker called GPC3.

Quick facts

PhasePhase 1
Study typeInterventional
Ages19 Years and up
SexAll
Enrollment70 (estimated)
SponsorAptamer Sciences, Inc.
Industry-sponsored
Locations4 sites (Goyang-si, Gyeonggi-do and 3 other locations)
StatusRecruiting
StartedMarch 11, 2025
Main results expectedDecember 2027
Study endsMay 2028
Registry record updatedMarch 27, 2026
Trial IDNCT06687941 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 19 and older with GPC3-positive advanced recurrent solid tumors.

Probably not a fit

Patients with ischemic heart disease or those who have received anti-tumor treatment within the last four weeks may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical study is the first in humans to evaluate AST-201, a novel aptamer-drug conjugate, in patients with GPC3-positive advanced solid tumors. The study is divided into two phases: Phase 1a focuses on determining the maximum tolerated dose and pharmacokinetic properties of AST-201, while Phase 1b assesses its safety and preliminary efficacy across specific tumor types. Patients will receive AST-201 as a single agent, and the study aims to gather data to support future clinical development of this treatment for GPC3-positive tumors.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with advanced solid tumors that express GPC3.

How similar studies have gone: While this approach is novel, preclinical studies have shown promising efficacy of AST-201 in GPC3-positive tumor models.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria

* Male and female aged ≥19 years
* Histologically and/or cytologically diagnosed as the advanced recurrent solid tumor
* GPC3-positive confirmed by IHC test
* At least 1 measurable or non-measurable but evaluable lesion as defined per RECIST v1.1 (modified RECIST for hepatocellular carcinoma)
* ECOG performance status of 0 or 1
* Life expectancy at least 12 weeks
* Adequate hematologic, hepatic, renal, and heart/coagulation function
* Child-Pugh Class of A for HCC

Exclusion Criteria

* Subjects with ischemic heart disease
* Subjects with anti-tumor treatment within 4 weeks
* Subjects with comorbidities such as uncontrolled hypertension, heart failure, etc.
* Pregnant or potentially pregnant and lactating woman

Where it's running

  • National Cancer Center, Korea
    Goyang-si, Gyeonggi-do, South Korea
    Recruiting
  • CHA Bundang Medical Center
    Seongnam, South Korea
    Recruiting
  • Severance Hospital
    Seoul, South Korea
    Recruiting
  • Samsung Medical Center
    Seoul, South Korea
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.