A First-In-Human Phase I/IIa Study to Evaluate DA 3501 in Patients With Advanced Gastric or Gastro-esophageal Junction Adenocarcinoma and Pancreatic Ductal Adenocarcinoma

Summary

The goal of this clinical trial is to determine the MTD or OBED of DA-3501 given in Q3W to determine a wRP2D in patients with advanced CLDN18.2 expressing (CLDN18.2+) GC/GEJ and advanced CLDN18.2+ PDAC. Participants will receive the assigned dose once every three weeks and, according to the study procedures, will undergo tumor assessments as well as safety assessments, PK evaluations, and ADA testing.

Interventions

• DA-3501 · DRUG

  Participant will receive DA-3501 at the assigned dose level administered intravenously once every three weeks.

Published eligibility criteria

Verbatim from the registry. Only the site can decide how these apply to a specific patient.

Inclusion Criteria:

1. Patients aged ≥ 19 years
2. Histologically or cytologically documented advanced CLDN18.2+ GC/GEJ adenocarcinoma or advanced CLDN18.2+ PDAC
3. Measurable disease as defined by Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1)
4. Life expectancy ≥12 weeks as judged by the Investigator

Exclusion Criteria:

1. Cardiac abnormalities
2. Gastrointestinal abnormalities
3. Active and clinically significant bacterial, fungal, or viral infection, including known hepatitis B virus (HBV), known hepatitis C virus (HCV), known human immunodeficiency virus (HIV).
4. Active systemic infection requiring IV antibiotics therapy.

Sites (3)

• CHA University Bundang Medical Center, Seongnam, Bundang · Recruiting
• Seoul National University Bundang Hospital, Seongnam, Bundang · Recruiting
• Severance Hospital, Seoul, Seoul · Recruiting