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PHASE 1/2, OPEN-LABEL, MULTICENTER, FIRST IN-HUMAN STUDY OF DS-3939a IN SUBJECTS WITH ADVANCED SOLID TUMORS

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-507937-14-00
Acronym
DS3939-077
Enrollment
114
Registered
2024-10-11
Start date
2025-03-25
Completion date
Unknown
Last updated
2025-09-25

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

Conditions

Metastatic Solid Tumor, Advanced Solid Tumor

Brief summary

Dose-limiting Toxicities (DLTs) [Part 1 only], Treatmentemergent Adverse Events (TEAEs), Laboratory findings, electrocardiogram (ECG), vital signs, echocardiogram or multigated acquisition (ECHO/MUGA) findings, physical examination results, Objective Response Rate (ORR) [Part 2 only]

Detailed description

Objective Response Rate (ORR) [Part 1 only], Disease Control Rate (DCR), Duration of Response (DoR), Time to Response (TTR), Progression Free Survival (PFS), Overall Survival (OS), TA-MUC1 Expression by Immunohistochemistry (IHC), Plasma PK parameters (eg, AUClast, AUCtau, Cmax, Tmax, Ctrough, and t1/2) of total conjugated payload, total anti-TAMUC1 antibody, and free payload, Anti-drug Antibodies (ADAs) for DS-3939a (status and titers) at Baseline and on treatment

Interventions

Sponsors

Daiichi Sankyo Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Dose-limiting Toxicities (DLTs) [Part 1 only], Treatmentemergent Adverse Events (TEAEs), Laboratory findings, electrocardiogram (ECG), vital signs, echocardiogram or multigated acquisition (ECHO/MUGA) findings, physical examination results, Objective Response Rate (ORR) [Part 2 only]

Secondary

MeasureTime frame
Objective Response Rate (ORR) [Part 1 only], Disease Control Rate (DCR), Duration of Response (DoR), Time to Response (TTR), Progression Free Survival (PFS), Overall Survival (OS), TA-MUC1 Expression by Immunohistochemistry (IHC), Plasma PK parameters (eg, AUClast, AUCtau, Cmax, Tmax, Ctrough, and t1/2) of total conjugated payload, total anti-TAMUC1 antibody, and free payload, Anti-drug Antibodies (ADAs) for DS-3939a (status and titers) at Baseline and on treatment

Countries

Belgium, France, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026