Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 1Phase 2 Interventional Results available

Phase I/II Trial of Letrozole and Sorafenib in Post-Menopausal Hormone-Receptor + Breast Cancer

ClinicalTrials.gov ID: NCT00634634

Public ClinicalTrials.gov record NCT00634634. 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 4, 2026, 6:09 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

Phase I/II Trial of Letrozole (Femara) and Sorafenib (Nexavar) in Postmenopausal Women With Hormone-Receptor Positive Locally Advanced or Metastatic Breast Cancer

Brief summary

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

Letrozole is an aromatase inhibitor that is approved in the first-line treatment of postmenopausal women with hormone receptor-positive or hormone receptor unknown locally advanced or metastatic breast cancer. Sorafenib may stop the growth of tumor cells by blocking blood flow to the tumor and by blocking some of the enzymes needed for cell growth. This phase I/II trial is studying the side effects and best dose of sorafenib when given in combination with letrozole and to see how well they work in treating postmenopausal women with metastatic breast cancer.

Study identification

NCT ID
NCT00634634
Recruitment status
Completed
Study type
Interventional
Phase
Phase 1, Phase 2
Enrollment
52 participants

Conditions and interventions

Interventions

Drug

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
Aug 10, 2008
Primary completion
Apr 19, 2019
Completion
Apr 27, 2023
Last update posted
Nov 8, 2023

2008 – 2023

United States locations

U.S. sites
4
U.S. states
3
U.S. cities
4
Facility City State ZIP Site status
Georgetown University Hospital Washington D.C. District of Columbia 20007
Emory University Atlanta Georgia 30322
Rutgers Cancer Institute of New Jersey New Brunswick New Jersey 08901
Cooper Hospital/University Medical Center Voorhees Township New Jersey 08690

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 NCT00634634, 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 Nov 8, 2023 · Synced Sep 4, 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 NCT00634634 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →