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Genotype Guided PPI Dosing

Nemours Children's Clinic · FDA-approved active Small molecule

Genotype-guided PPI dosing optimizes proton pump inhibitor therapy by tailoring doses based on individual CYP2C19 metabolizer status to improve efficacy and safety.

Genotype-guided PPI dosing optimizes proton pump inhibitor therapy by tailoring doses based on individual CYP2C19 metabolizer status to improve efficacy and safety. Used for Gastroesophageal reflux disease (GERD) — genotype-guided dosing, Peptic ulcer disease — genotype-guided dosing, Acid-related disorders requiring PPI therapy — genotype-guided dosing.

At a glance

Generic nameGenotype Guided PPI Dosing
Also known asPrilosec, Nexium, Prevacid, Proton Pump Inhibitor
SponsorNemours Children's Clinic
Drug classProton pump inhibitor (PPI) — dosing optimization strategy
TargetCYP2C19 (cytochrome P450 2C19 enzyme variants)
ModalitySmall molecule
Therapeutic areaGastroenterology
PhaseFDA-approved

Mechanism of action

This is a pharmacogenomic dosing strategy rather than a novel drug. It uses genetic testing of CYP2C19 variants to classify patients as poor, intermediate, extensive, or ultra-rapid metabolizers, then adjusts PPI doses accordingly. Poor metabolizers require lower doses to avoid toxicity, while ultra-rapid metabolizers may need higher doses for therapeutic effect.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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