A New Mode of Action of Anti-TNF, Reverse Signaling, in Rheumatoid Arthritis

Rheumatoid Arthritis Clinical Trial

— TNF-RS-PR  

Official title:

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

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03216928
• Other study ID #: 15 7735 02
• Status: Completed
• Phase: N/A
• Start date: January 2017
• Est. completion date: March 12, 2020

Study information

• Verified date: July 2022
• Source: University Hospital, Toulouse
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 33
• Est. completion date: March 12, 2020
• Est. primary completion date: March 12, 2020
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

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

Related Conditions & MeSH terms

• Arthritis
• Arthritis, Rheumatoid
• Rheumatoid Arthritis

Intervention

Diagnostic Test:
• Blood test

Locations

Country	Name	City	State
France	University Hospital Toulouse	Toulouse

Sponsors (1)

Lead Sponsor	Collaborator
University Hospital, Toulouse

Country where clinical trial is conducted

France, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	CD36 expression	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	Monocytes	Phenotype of freshly isolated monocytes before cell-culture	Day 0
Secondary	Nuclear translocation of NRF2	Nuclear translocation of Nuclear factor (erythroid-derived 2)-like 2 (NRF2) induced by anti-TNF ex vivo	Day 0