Skip to content

Genotype Information and Functional Testing Study

GIFT: Genotype Information and Functional Testing Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00992420
Acronym
GIFT
Enrollment
2000
Registered
2009-10-09
Start date
2009-10-01
Completion date
2010-08-31
Last updated
2022-11-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Coronary Artery Disease

Keywords

thienopyridine, platelets, CYP2C19, clopidogrel, platelet function tests, platelet, genes, cytochrome P450, single nucleotide polymorphisms, Platelet Aggregation Inhibitors

Brief summary

This study is a sub-study of GRAVITAS (clinicaltrials.gov identifier NCT00645918). The purpose of this study is to assess which genes influence residual platelet reactivity on standard dose clopidogrel therapy, and also to determine whether certain genes influence the incremental change in platelet reactivity with high-dose clopidogrel maintenance dosing in patients who have high residual platelet reactivity on standard dosing.

Detailed description

AS DESCRIBED BY THE PI: This study is a sub-study of GRAVITAS (clinicaltrials.gov identifier NCT00645918). The purpose of this study is to assess which genes influence residual platelet reactivity on standard dose clopidogrel therapy, and also to determine whether certain genes influence the incremental change in platelet reactivity with high-dose clopidogrel maintenance dosing in patients who have high residual platelet reactivity on standard dosing.

Interventions

None listed

Sponsors

Bristol-Myers Squibb
CollaboratorINDUSTRY
Sanofi
CollaboratorINDUSTRY
Accumetrics, Inc.
CollaboratorINDUSTRY
Scripps Health
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients meeting inclusion criteria for GRAVITAS who undergo VerifyNow blood sampling for VerifyNow P2Y12 platelet function testing and IVRS entry for GRAVITAS randomization/selection determination

Exclusion criteria

* See GRAVITAS trial (ClinicalTrials.gov identifier: NCT00645918)

Design outcomes

Primary

MeasureTime frameDescription
residual platelet reactivity6 monthsOutcome 1 is residual platelet reactivity the measurement

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 26, 2026