Pharmacogenetic Prediction of Metoprolol Effectiveness

NCT02293096 · Status: TERMINATED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 462

Last updated 2021-09-16

Study results available
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Summary

The investigators will prospectively follow a population of patients with uncontrolled high blood pressure beginning metoprolol succinate therapy to determine the drug effect in an observational clinical trial. The investigators will determine each individual's genotype for both CYP2D6 and Adrenoceptor Beta 1 (ADRB1). Metabolomic markers will be identified to determine if specific metabolites are associated with drug response. The investigators' overall objective is to determine if genetics predicts metoprolol succinate response better than clinical factors such as age, race, body mass index, dose, and medication co-ingestion.

Conditions

Interventions

DRUG

metoprolol succinate

GENETIC

Genotyping

CYP2D6 only clinically pertinent pathway of metoprolol metabolism and polymorphisms have been associated with altered levels of metoprolol. ADRB1 is the drug target and polymorphism in this receptor has been associated with variable drug response. Genotyping will occur after the treatment phase is complete. Thus the investigator, the subject, and the outcomes investigator will be blind to the intervention.

PROCEDURE

CYP2D6 Phenotyping

Phenotype can be discordant from what is predicted by genotype due to variability in absorption, hepatic blood flow, drug interaction and drug elimination. These factors can be accounted for by utilizing a phenotyping assay that determines area under the curve of the probe since the probe is affected by the same variables dictating metabolism phenotype of the therapeutic drug. Investigators will be blind to the patient blood pressure outcome for this intervention.

Sponsors & Collaborators

  • National Institute of General Medical Sciences (NIGMS)

    collaborator NIH
  • University of Colorado, Denver

    lead OTHER

Principal Investigators

  • Andrew Monte, MD · University of Colorado, Denver

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
QUADRUPLE
Model
SINGLE_GROUP

Eligibility

Min Age
30 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2014-09-30
Primary Completion
2017-08-23
Completion
2017-08-23

Countries

  • United States

Study Locations

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Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02293096 on ClinicalTrials.gov