ClinicalTrials.gov record
Active, not recruiting Phase 1 Interventional

A Study Evaluating DS-1055a in Participants With Relapsed or Refractory Locally Advanced or Metastatic Solid Tumors

ClinicalTrials.gov ID: NCT04419532

Public ClinicalTrials.gov record NCT04419532. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced May 4, 2026, 2:50 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 1, First In Human Study of DS-1055a in Subjects With Relapsed or Refractory Locally Advanced or Metastatic Solid Tumors

Study identification

NCT ID
NCT04419532
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 1
Lead sponsor
Daiichi Sankyo
Industry
Enrollment
40 participants

Conditions and interventions

Interventions

  • DS-1055a Drug

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Oct 8, 2020
Primary completion
Jun 30, 2027
Completion
Jun 30, 2027
Last update posted
Mar 19, 2026

2020 – 2027

United States locations

U.S. sites
2
U.S. states
2
U.S. cities
2
Facility City State ZIP Site status
Memorial Sloan Kettering Cancer Center New York New York 10065
University of Cincinnati Cancer Center Cincinnati Ohio 45219

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 4 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04419532, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Mar 19, 2026 · Synced May 4, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04419532 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →