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Clinical trialNCT01791478Active, not recruitingPhase 1Interventional

BYL719 and Letrozole in Post-Menopausal Patients With Hormone Receptor-Positive Metastatic Breast Cancer

SponsorVanderbilt-Ingram Cancer CenterEnrollment46Estrogen Receptor-positive Breast CancerHER2-negative Breast CancerInvasive Ductal Breast CarcinomaProgesterone Receptor-positive Breast CancerRecurrent Breast CancerStage IV 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.

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

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

United States
  • Massachusetts General Hospital, Dana-Farber Cancer Institute

    Boston, Massachusetts, United States

  • Vanderbilt-Ingram Cancer Center

    Nashville, Tennessee, United States

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

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

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

Start
30 Apr 2013
Primary completion
31 Dec 2014
Completion
28 Feb 2025
Last update posted
23 Jul 2024
Registered enrollment
46
Registry id
NCT01791478

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.