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Study details
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Testing a Combination of DS-8201a and Olaparib in HER2-Expressing Cancers

National Cancer Institute (NCI)
NCT IDNCT04585958ClinicalTrials.gov data as of Apr 2026
Phase

Phase 1

Target enrollment

55

Study length

about 5.6 years

Ages

18+

Locations

5 sites in AZ, FL, MA +2

What this study is about

This trial is testing the safety and best dose of DS-8201a and olaparib, a treatment combination, in people with HER2-positive cancers that have spread or are resistant to platinum chemotherapy. The goal is to determine how well this treatment works and what side effects it causes.

Simplified from trial records by PatientMatch.

What you may be asked to do

  • 1.Receive Trastuzumab Deruxtecan
  • 2.Take Olaparib
  • 3.Undergo Biopsy Procedure
  • +3 more

Participation Burden

What's physically and logistically required of participants.

Logistics & Travel
In-person visits

Requires travel to a study site

Physical Intervention
OralInjection / IV

How treatment is administered

Treatment Assignment
All receive treatment

Everyone gets the investigational treatment.

Extracted study details

Pulled from the trial record to show what is being tested and what the study is measuring.

Drug classes

olaparib, trastuzumab deruxtecan

Drug routes

oral, infusion

Endpoints

Primary: Incidence of adverse events, Maximum tolerated dose/recommended phase 2 dose

Secondary: Clinical benefit rate (CBR), Duration of response (DOR), Objective response rate (ORR), Plasma pharmacokinetic (PK) profiles

Procedures

biopsy, diagnostic, imaging

Body systems

Oncology