For Healthcare Professionals

A Study to Provide Continued Access to and Assess Long-Term Safety of the Study Drug(s)

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About the study

This open-label, multicenter, rollover study will provide continued treatment for participants deriving benefit from different therapies received in studies sponsored by Daiichi Sankyo, Inc. (DS) or DS/Astra Zeneca (AZ)-sponsored study (eg. DS8201-A-J101, DS8201-A-U201, DS8201-A-U204, DS8201-A-U207, DS8201-A-U303).
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Who can take part

You may be eligible to participate in the study if you meet the following criteria:

INCLUSION CRITERIA

Inclusion Criteria:

  1. Signed informed consent form, prior to the start of any study-specific qualification procedures and willing to comply with all study requirements.
  2. Currently enrolled in a DS or DS/AZ-sponsored parent study that has met EOS definition.
  3. No evidence of progressive disease and determined to have investigator-assessed clinical benefit from continued treatment with a DS or DS/AZ alliance study drug(s).

EXCLUSION CRITERIA

Exclusion Criteria:

  1. Participants with any unresolved/ongoing AE(s) that meets the study drug discontinuation criteria
  2. Participant who has been off T-DXd therapy for >18 weeks (126 days) between the last dose from the parent study and the initiation of study drug administration on this study
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Study Locations

Enter your ZIP code/Postal code/PIN code to locate study sites near you:

How to Apply


Contact the study center to learn if this study is a good match for you.
Phone iconCall 908-992-6400Email iconEmail Study Center

Study Details


Contition

Advanced Cancer,Metastatic Cancer

Age

18+

Phase

PHASE3

Participants Needed

50

Est. Completion Date

Aug 3, 2026

Treatment Type

INTERVENTIONAL


Sponsor

Daiichi Sankyo

ClinicalTrials.gov NCT Identifier

NCT06174987

Study Number

ROMast-001

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