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Clinical Trial 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

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

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06293651
Enrollment
125
Registered
2024-03-05
Start date
2024-04-18
Completion date
2029-10-31
Last updated
2025-02-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Locally Advanced or Metastatic Solid Tumors

Brief summary

This study is an Open-Label, Phase 1/2a, First-in-Human, Dose-Escalation, Dose-Expansion, and Proof-of-Concept 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.

Interventions

DRUGDA-4505

Phase 1a: Dose escalation Phase 1b: OBD and MTD Phase 2a: RP2D

DRUGDA-4505 + Pembrolizumab

Phase 1a/b: OBD, MTD of DA-4505 + 200mg of Pembrolizumab Phase 2a: RP2D of DA-4505 + 200mg of Pembrolizumab

Sponsors

Dong-A ST Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

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.

Design outcomes

Primary

MeasureTime frameDescription
Proportion of adverse events (AEs) meeting protocol-defined dose-limiting toxicity(DLT) criteriaCycle 1(21 days) in dose escalationThe recommended Phase 2 dose(RP2D) will be the optimal biological dose (OBD) based on consideration of safety and tolerability information along with all available pharmacokinetic (PK), pharmacodynamic (PD), and efficacy data.
PK parameters for DA-4505 (Peak Plasma Concentration (Cmax))Day 1 and 2 of first 2 cycles (every 21 days)Determine DA-4505 Cmax
PK parameters for DA-4505 (Area Under the Curve (AUC))Day 1 and 2 of first 2 cycles (every 21 days)Determine DA-4505 AUC
PK parameters for DA-4505 (half-life (t1/2))Day 1 and 2 of first 2 cycles (every 21 days)Determine DA-4505 half-life (t1/2).
Response per revised Response Evaluation Criteria in Solid Tumors (RECIST) version (v) 1.1)approximately 12 monthsTo determine the anti-tumor activity of both DA-4505 as a single agent and in combination with pembrolizumab

Countries

South Korea

Contacts

Primary ContactJayun Jang
janycan@donga.co.kr+82-2-920-8306
Backup ContactHye-yeong Han
hyhan@donga.co.kr

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026