Clinical trial Recruiting at 2 sites Phase1; Phase2 Interventional Ages 18 and up

Investigating DA-4505 and Pembrolizumab for Advanced Solid Tumors

Official title: an Open-Label, Phase 1/2a, First-in-Human Study to Investigate Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Efficacy of DA-4505 as a Single Agent and in Combination With Pembrolizumab in Adult Patients With Locally Advanced or Metastatic Solid Tumors

Run by Dong-A ST Co., Ltd. · NCT06293651 · Data updated 2026-11-12

This study is testing a new treatment called DA-4505, both alone and with Pembrolizumab, to see if it helps adults with advanced solid tumors.

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment125 (estimated)
SponsorDong-A ST Co., Ltd.
Industry-sponsored
Drugs / interventionschimeric antigen receptor, Pembrolizumab
Locations2 sites (Seoul and 1 other locations)
StatusRecruiting
StartedApril 18, 2024
Main results expectedJanuary 2026
Study endsOctober 2029
Registry record updatedFebruary 12, 2025
Trial IDNCT06293651 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults aged 18 and older with locally advanced or metastatic solid tumors and an expected survival of at least three months.

Probably not a fit

Patients who have unresolved adverse reactions from previous cancer therapies or are currently enrolled in another clinical trial 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 trial is an open-label, Phase 1/2a study designed to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and efficacy of DA-4505, both as a standalone treatment and in combination with Pembrolizumab, in adult patients with locally advanced or metastatic solid tumors. The study will involve dose-escalation and dose-expansion phases to determine the optimal dosing and effectiveness of the treatments. Participants will be monitored for adverse effects and treatment responses throughout the trial.

Why it matters

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

How similar studies have gone: Other studies have shown promise with similar immunotherapy approaches, but this specific combination is being explored for the first time.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Aged 18 and older.
2. Capable of giving signed informed consent.
3. Diagnosed with particular disease characteristics.
4. Expected survival ≥ 3 months.
5. Eastern Cooperative Oncology Group (ECOG) performance status ≤ 1.
6. A female patient is eligible to participate if she is not pregnant or breastfeeding.
7. A male patient is eligible to participate if he agrees to remain abstinent or use a male condom when having sexual intercourse with a WOCBP, or if he has had a bilateral vasectomy.
8. Have measurable disease by revised RECIST v1.1 criteria.

Exclusion Criteria:

1. Inability to take oral medications or gastrointestinal abnormalities potentially impacting absorption.
2. Current enrollment or past participation in another clinical trial.
3. Unresolved adverse reactions (except alopecia) from previous cancer-directed therapy.
4. Use of cancer-directed therapies, including chimeric antigen receptor T cell therapy.
5. Autologous transplantation within 60 days.
6. Prior allogeneic transplantation.
7. Major surgery within 30 days, or unresolved complications after a major or minor surgery.
8. History of or currently active cardiovascular disease.
9. Clinically significant respiratory, hepatic, renal, gastrointestinal, endocrinological, hematological, or neurological disorders.
10. History of other malignancy.

Where it's running

  • Asan Medical Center
    Seoul, South Korea
    Recruiting
  • Severance Hospital
    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.