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Clinical trialNCT04657679TerminatedPhase 4Interventional

Pharmacokinetics and Pharmacogenomics of Ribociclib in Race-based Cohorts

SponsorGeorgetown UniversityEnrollment21Breast Cancer
View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

The aim is to determine the pharmacological and biochemical association between ribociclib exposure and CYP3A variants in African American/Blacks and Non-Hispanic White patients. The investigators hypothesize that patients treated with ribociclib who are CYP3A5 poor metabolizers may be exposed to higher levels of ribociclib than CYP3A5 intermediate or normal metabolizers. The findings could allow clinicians to tailor treatments to maintain therapeutic doses while limiting toxicities.
clinicaltrials.gov ↗

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

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

United States
  • Medstar Georgetown University Hospital

    Washington D.C., District of Columbia, United States

  • Medstar Washington Hospital Center

    Washington D.C., District of Columbia, United States

  • Tufts Medical Center

    Boston, Massachusetts, United States

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.

Ribociclib →
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
20 May 2021
Primary completion
30 Oct 2023
Completion
30 Oct 2023
Last update posted
26 Nov 2024
Registered enrollment
21
Registry id
NCT04657679
clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; FindMyKOL does not interpret them.