Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 2 Interventional Results available

Umbrella Trial of Subtype-Targeted Therapies in ER+/HER2- Breast Cancer

ClinicalTrials.gov ID: NCT05101564

Public ClinicalTrials.gov record NCT05101564. 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 Sep 1, 2026, 9:45 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

An Umbrella, Randomized, Controlled, Pre Operative Trial Testing Integrative Subtype Targeted Therapeutics in Estrogen Receptor Positive, HER2-Negative Breast Cancer

Brief summary

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

The purpose of this study is to learn if adding a new drug that is targeted at a specific genetic change found in some breast tumors pre-operatively will slow the growth of the tumor more than standard anti-hormone therapy used to treat this type of breast cancer. Different therapies are being tested based on the specific gene changes in the tumor. Not every tumor will have a gene change that is being studied.

Study identification

NCT ID
NCT05101564
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Jennifer Lee Caswell-Jin
Other
Enrollment
19 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
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
Mar 19, 2023
Primary completion
Jun 2, 2024
Completion
Jun 2, 2024
Last update posted
Feb 11, 2026

2023 – 2024

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Stanford University Stanford California 94304

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

Recently updated Breast Cancer trials

Other public records listing Breast Cancer. Sorted by last update posted; newest first. Not a recommendation.

All Breast Cancer trials →

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05101564, 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 Feb 11, 2026 · Synced Sep 1, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT05101564 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →