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Completed Phase 3 Interventional Results available

SYD985 vs. Physician's Choice in Participants With HER2-positive Locally Advanced or Metastatic Breast Cancer

ClinicalTrials.gov ID: NCT03262935

Public ClinicalTrials.gov record NCT03262935. 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 Oct 22, 2026, 8:51 PM 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 Multi-centre, Open-label, Randomized Clinical Trial Comparing the Efficacy and Safety of the Antibody-drug Conjugate SYD985 to Physician's Choice in Patients With HER2-positive Unresectable Locally Advanced or Metastatic Breast Cancer

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this study is to demonstrate that SYD985 \[(vic-)trastuzumab duocarmazine\] is superior to physician's choice in prolonging progression free survival.

Study identification

NCT ID
NCT03262935
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Byondis B.V.
Industry
Enrollment
437 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
Female
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
Dec 15, 2017 (Actual)
Primary completion
Mar 31, 2021 (Actual)
Completion
Jun 30, 2022 (Actual)
Last update posted
Oct 19, 2023

2017 – 2022

United States locations

U.S. sites
23
U.S. states
15
U.S. cities
20
Facility City State ZIP Site status
Southern Cancer Center Mobile Alabama 36608 —
Arizona Clinical Research Center Tucson Arizona 85715 —
Moores UCSD Cancer Center San Diego California 92093 —
Woodlands Medical Specialists Pensacola Florida 32503 —
Rush University Medical Center Chicago Illinois 60612 —
Cancer Center of Kansas Wichita Kansas 67214 —
University of Maryland Greenebaum Cancer Center Baltimore Maryland 21144 —
Greater Baltimore Medical Center Baltimore Maryland 21204 —
Henry Ford Hospital Detroit Michigan 48202 —
Saint Luke's Hospital of Kansas City Kansas City Missouri 64111 —
FirstHealth Outpatient Cancer Center Pinehurst North Carolina 28374 —
Toledo Clinic Cancer Center Toledo Ohio 43623 —
Northwest Cancer Specialists Portland Oregon 97213 —
Magee-Womens Hospital of UPMS Pittsburgh Pennsylvania 15213 —
Texas Oncology PA (Texas Oncology-Dallas Presbyterian Hospital) Dallas Texas 75231 —
Texas Oncology- Baylor Charles A. Sammor Dallas Texas 75246 —
Texas Oncology - Denton South Denton Texas 76210 —
Texas Oncology-Memorial City Houston Texas 77024 —
Baylor College of Medicine Houston Texas 77030-34011 —
Texas Oncology-San Antonio Northeast San Antonio Texas 78217 —
Texas Oncology-Tyler Tyler Texas 75702 —
Virginia Cancer Specialists, PC Fairfax Virginia 22031 —
Virginia Oncology Associates Norfolk Virginia 23502 —

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 67 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03262935, 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 Oct 19, 2023 · Synced Oct 22, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT03262935 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →