A New Mode of Action of Anti-TNF, Reverse Signaling, in Rheumatoid Arthritis (TNF-RS-PR)

July 28, 2022 updated by: University Hospital, Toulouse

Pilot Study Investigating a New Mode of Action of Anti-TNF, Reverse Signaling, in Rheumatoid Arthritis

Blood test in Rheumatoid Arthritis (RA) patients with good response to anti-Tumor Necrosis Factor (anti-TNF) and in patients with moderate or non-response will be done in the month following the evaluation of clinical response to therapy. Isolation of mononuclear cells and purification of monocyte by negative selection. Cell culture of monocyte in presence or not of anti-TNF for 24 hours and analyze of CD36 (cluster of differentiation antigen 36) expression (principal outcome). For secondary outcomes analyze monocyte phenotype, NRF2 nuclear translocation, and clinical data of patients.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

33

Phase

  • Not Applicable

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

  • France
      • Toulouse, France, 31059
        • University Hospital Toulouse

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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • RA defined according to the American College of Rheumatology (ACR) 2010 criteria,
  • treated by anti-TNF + methotrexate, good responders in in one arm, and moderate or non-responders in the other arm according to EULAR (European Ligue Against Rheumatism) response criteria after three months of treatment

Exclusion Criteria:

  • contra-indication to anti-TNF
  • corticosteroid more than 10mg by a day equivalent prednisone,
  • modification of DMARD (disease-modifying antirheumatic drugs) in the last three months
  • comprehension trouble
  • Factors modifying CD36 -cluster of differentiation antigen 36- expression as diabetes mellitus, kidney disease, HIV

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

  • Primary Purpose: Basic Science
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Group 1
patients with good response to anti-TNF had a blood test
Diagnostic test: Blood test
Experimental: Group 2
patients with moderate or non-response to anti-TNF had a blood test
Diagnostic test: Blood test

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
CD36 expression
Time Frame: Day 0
Percentage of increase of CD36 (cluster of differentiation 36) expression induced by anti-TNF ex vivo after 24h of cell culture in two groups of human monocytes: monocytes providing of RA patients good responder to anti-TNF in one hand, and moderate or non-responder in the other hand.
Day 0

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Monocytes
Time Frame: Day 0
Phenotype of freshly isolated monocytes before cell-culture
Day 0
Nuclear translocation of NRF2
Time Frame: Day 0
Nuclear translocation of Nuclear factor (erythroid-derived 2)-like 2 (NRF2) induced by anti-TNF ex vivo
Day 0

Collaborators and Investigators

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

Sponsor

University Hospital, Toulouse

Investigators

  • Principal Investigator: Jean-Frédéric Boyer, MD, University Hospital, Toulouse

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 1, 2017

Primary Completion (Actual)

March 12, 2020

Study Completion (Actual)

March 12, 2020

Study Registration Dates

First Submitted

June 12, 2017

First Submitted That Met QC Criteria

July 11, 2017

First Posted (Actual)

July 13, 2017

Study Record Updates

Last Update Posted (Actual)

July 29, 2022

Last Update Submitted That Met QC Criteria

July 28, 2022

Last Verified

July 1, 2022

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 15 7735 02

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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