Your DNA could determine which heart drug works best

NCT ID NCT03161678

First seen Jul 24, 2026 · Last updated Jul 24, 2026

Summary

This trial investigates whether a common genetic variation in the CES1 gene affects how the body processes two antiplatelet drugs, clopidogrel and ticagrelor. Healthy volunteers of Amish descent will take each drug for eight days in a crossover design, and researchers will measure platelet function before and after treatment. The goal is to see if genetic differences can predict which drug works better for a given person, potentially paving the way for personalized antiplatelet therapy.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
clopidogrel and ticagrelor
What this could lead to
If genetic differences are found to matter, doctors could one day choose the right antiplatelet drug based on a person's DNA, potentially preventing heart attacks and strokes more effectively.
What could go wrong
This is a small, early-stage study in healthy volunteers, not patients. The results may not apply to real-world heart attack patients, and the genetic effect may be too small to guide treatment.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for MYOCARDIAL INFARCTION are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Amish Research Clinic

    Lancaster, Pennsylvania, 17602, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.