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Recruiting No phase listed Observational

Immune Response to Anti-HER2 Therapies in Patients With HER2-Positive Stage I-IV Breast Cancer

ClinicalTrials.gov ID: NCT04517838

Public ClinicalTrials.gov record NCT04517838. 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 Jul 21, 2026, 12:33 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

Immune Response to Anti-HER2 Therapies

Study identification

NCT ID
NCT04517838
Recruitment status
Recruiting
Study type
Observational
Phase
Not listed
Lead sponsor
Mayo Clinic
Other
Enrollment
230 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
Jul 30, 2020
Primary completion
Jul 26, 2028
Completion
Jul 26, 2028
Last update posted
Jun 15, 2026

2020 – 2028

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Mayo Clinic in Florida Jacksonville Florida 32224-9980 Recruiting

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

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04517838, 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 Jun 15, 2026 · Synced Jul 21, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04517838 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →