Clinical trialNCT04893109RecruitingPhase 2Interventional

ATEMPT 2.0: Adjuvant T-DM1 vs TH

SponsorDana-Farber Cancer InstituteEnrollment500Breast CancerHER2-positive Breast Cancer

View the registry record on ClinicalTrials.gov

Summary

The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

Sara Tolaney, MD, PhD
Dana-Farber Cancer Institute
Principal InvestigatorKOL profile →
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

53 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

Ucsf Helen Diller Family Comprehensive Cancer Center
San Francisco, California, United States
Hope Rugo, MD
Recruiting
Smilow Cancer Hospital Care Center at Derby
Derby, Connecticut, United States
Daniel O'Neil, MD
Recruiting
Smilow Cancer Hospital Care Center at Fairfield
Fairfield, Connecticut, United States
Daniel O'NEIL, MD
Recruiting
Smilow Cancer Hospital Care Center at Glastonbury
Glastonbury, Connecticut, United States
Daniel O'Neil, MD
Recruiting
Smilow Cancer Hospital Care Center at Greenwich
Greenwich, Connecticut, United States
Daniel O'Neil, MD
Recruiting
Smilow Cancer Hospital Care Center at Guilford
Guilford, Connecticut, United States
Daniel O'Neil, MD
Recruiting
Smilow Cancer Hospital Care Center at St. Francis
Hartford, Connecticut, United States
Daniel O'Neil, MD
Recruiting
Smilow Cancer Hospital Care Center at Long Ridge
Long Ridge, Connecticut, United States
Daniel O'Neil, MD
Recruiting
Yale Cancer Center at Yale University School of Medicine
New Haven, Connecticut, United States
Daniel O'Niel, MD
Recruiting
Smilow Cancer Hospital Care Center at North Haven
North Haven, Connecticut, United States
Daniel O'neil, MD
Recruiting
Stamford Hospital
Stamford, Connecticut, United States
K. M. Steve Lo, MD
Recruiting
Smilow Cancer Hospital Care Center at Torrington
Torrington, Connecticut, United States
Daniel O'Neil, MD
Recruiting
Smilow Cancer Hospital Care Center at Trumbull
Trumbull, Connecticut, United States
Daniel O'Neil, MD
Recruiting
Smilow Cancer Hospital Care Center at Waterbury
Waterbury, Connecticut, United States
Daniel O'Neil, MD
Recruiting
Smilow Cancer Hospital Care Center at Waterford
Waterford, Connecticut, United States
Daniel O'Neil, MD
Recruiting
Miami Cancer Institute/baptist Hospital of Miami
Miami, Florida, United States
Reshma Mahtani, DO
Recruiting
Miami Cancer Institute - Plantation (mcip)
Plantation, Florida, United States
Reshma Mahtani, DO
Recruiting
the University of Chicago Medical Center
Chicago, Illinois, United States
Nan Chen, MD
Recruiting
Iu Health North Hospital
Carmel, Indiana, United States
Active, not recruiting
Indiana University Health Joe & Shelly Schwarz Cancer Center
Carmel, Indiana, United States
Active, not recruiting
Indiana University Melvin and Bren Simon Comprehensive Cancer Center
Indianapolis, Indiana, United States
Active, not recruiting
Indiana University Sidney and Lois Eskenazi Hospital
Indianapolis, Indiana, United States
Active, not recruiting
Eastern Maine Medical Center (northern Light)
Brewer, Maine, United States
Sarah J Sinclair, DO
Recruiting
New England Cancer Specialists
Scarborough, Maine, United States
Chiara Battelli, MD
Recruiting
Beth Israel Deaconess Medical Center
Boston, Massachusetts, United States
Nadine Tung, MD
Recruiting
Dana Farber Cancer Institute
Boston, Massachusetts, United States
Sara M. Tolaney, MD MPH
Recruiting
Massachusetts General Hospital
Boston, Massachusetts, United States
Laura Spring, MD
Recruiting
Dana-Farber at St. Elizabeth'S Medical Center
Brighton, Massachusetts, United States
Sara Giordano, MD
Recruiting
Lahey Clinic
Burlington, Massachusetts, United States
Corrine Zarwan, MD
Recruiting
Mass General North Shore Cancer Center
Danvers, Massachusetts, United States
Katherine Harris, MD
Recruiting
Dana-Farber Brigham Cancer Center - Foxborough
Foxborough, Massachusetts, United States
Natalie Sinclair, MD
Recruiting
Dana-Farber Cancer Instiute - Merrimack Valley
Methuen, Massachusetts, United States
Pedro Sanz-Altamira, MD
Recruiting
Dana-Farber at Milford
Milford, Massachusetts, United States
Natalie Sinclair, MD
Recruiting
Newton Wellesley Hospital
Newton, Massachusetts, United States
Aron Rosenstock, MD
Recruiting
Berkshire Medical Center
Pittsfield, Massachusetts, United States
Thomas Fynan, MD
Recruiting
Dana Farber at South Shore Hospital
Weymouth, Massachusetts, United States
Meredith Faggen, MD
Recruiting
Nh Oncology-Hematology, Pa - Payson Center for Cancer Care
Concord, New Hampshire, United States
Douglas Weckstein, MD
Recruiting
Dana-Farber Cancer Insitute at Londonderry Hospital
Londonderry, New Hampshire, United States
Jeanna Walsh, MD
Recruiting
Solinsky Center for Cancer Care (nh Oncology-Hematology, Pa)
Manchester, New Hampshire, United States
Douglas Weckstein, MD
Recruiting
New England Cancer Specialists - Portsmouth
Portsmouth, New Hampshire, United States
Chiara Battelli, MD
Recruiting

13 more sites on the registry record.ClinicalTrials.gov ↗

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

Paclitaxel →Trastuzumab →

Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 16 Jun 2021
Primary completion: 1 Nov 2026
Completion: 1 May 2028
Last update posted: 24 Apr 2026
Registered enrollment: 500
Registry id: NCT04893109

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.