Cytochrome P450's Pharmacogenomics in Chronic Pain Patients (FACIDOCRO)

March 26, 2018 updated by: Andrea Fanelli, University of Bologna

Exploratory Study of Cytochrome P450's Pharmacogenomics in Chronic Pain Patients

The use of titrated drugs is at the base of a successful antalgic treatment in order to provide both an adequate relief and a satisfactory tolerability profile. These molecules, though, have a varying degree of efficacy in different subjects due to medical and genetic reasons. The latter are mainly represented by cytochrome (CYP) P450, in particular CYP2D6's polymorphisms are responsible for the diversified metabolism of analgesics used in chronic pain treatments.

Four main types of enzymatic metabolism make up the population, each one defined by a different CYP2D6 allele: extensive metabolizers, ultra-rapid metabolizers, intermediate metabolizers and poor metabolizers.

Moreover, regarding polytherapies, the analgesics' metabolism could be influenced by coadministration of other drugs, thus determining an inhibition or induction of the metabolic enzymes - known as phenocopying - and potentially also a change in the metabolic phenotype itself. The final outcome is the inconstancy of effectiveness and of the risk of developing side effects.

The primary objective of this study is to define a genetic pattern for the gene CYP2D6 by assessing the incidence of poor or ultrarapid metabolizers in a population of chronic pain patients. This will also allow to observe phenocopying in the same population.

Hence 100 patients diagnosed with chronic pain will be enrolled. The genetic pattern of the gene CYP2D6 of such patients will be examined by taking mouth samples. At the same time parametric tests for paired data to survey the correlations between phenotypical patterns and pharmacological therapies will be conducted.

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Actual)

100

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Italy
      • Bologna, Italy, 40138
        • Andrea Fanelli

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 90 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Chronic pain patients who are treated in a pain therapy clinic

Description

Inclusion Criteria:

  • Diagnosis of chronic pain

Exclusion Criteria:

-

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Analyzing the genetic pattern of CYP2D6's genes
Time Frame: 8-10 months
Analyzing the genetic pattern of CYP2D6's genes in a population of chronic pain patients who are treated in a pain therapy clinic
8-10 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Evaluating the incidence of metabolic phenotype's variation
Time Frame: 8-10 months
Evaluating the incidence of metabolic phenotype's variation (phenocopying) in a population of chronic pain patients who are treated in a pain therapy clinic
8-10 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Bologna

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 8, 2018

Primary Completion (Actual)

March 23, 2018

Study Completion (Actual)

March 23, 2018

Study Registration Dates

First Submitted

January 17, 2018

First Submitted That Met QC Criteria

January 25, 2018

First Posted (Actual)

January 26, 2018

Study Record Updates

Last Update Posted (Actual)

March 29, 2018

Last Update Submitted That Met QC Criteria

March 26, 2018

Last Verified

January 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • FACIDOCRO

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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