Viewing Study NCT05812157


Ignite Creation Date: 2025-12-24 @ 6:31 PM
Ignite Modification Date: 2025-12-31 @ 1:48 AM
Study NCT ID: NCT05812157
Status: RECRUITING
Last Update Posted: 2025-05-09
First Post: 2023-03-31
Is NOT Gene Therapy: True
Has Adverse Events: False

Brief Title: Optimizing Anti-IL17 Antibody Therapy by Associating Fiber Supplementation to Correct Treatment-aggravated Gut Dysbiosis in Axial Spondyloarthritis - RESPOND-IL17
Sponsor: Centre Hospitalier Universitaire de Nīmes
Organization:

Study Overview

Official Title: Optimization of Anti-IL17 Antibody Therapy by Associating Fiber Supplementation to Correct Treatment-aggravated Gut Dysbiosis in Axial Spondyloarthritis - RESPOND-IL17
Status: RECRUITING
Status Verified Date: 2025-05
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: RESPOND-IL17
Brief Summary: Fiber is the main source of energy for colonic bacteria and its consumption favorably modifies the composition of the microbiota in only a few days. Their fermentation in the colon releases short-chain fatty acids (SCFAs). Clostridiales contain many strains producing SCFAs. These SCFAs can restore the intestinal barrier and promote certain anti-inflammatory cells, including regulatory T cells (Tregs), which are essential to the mechanisms in tolerance of the self. Fibers could therefore correct the intestinal abnormalities present in patients with axial spondyloarthritis (AxSpA) and aggravated by anti-IL-17 drugs and thus improve the therapeutic response to these treatments.

The hypothesis is that dietary fiber will correct the dysbiosis in AxSpA patients and increase the release of SCFAs, which favorably modulate the immune response and improve AxSpA.
Detailed Description: Axial spondyloarthritis (AxSpA) is the second most common chronic inflammatory rheumatic disease, which develops preferentially in young subjects and results in a significant impairment of quality of life, particularly due to painful symptoms. The importance of the digestive system has long been recognized, since this disease is considered to be part of a larger group of diseases including Crohn's disease and ulcerative colitis because of their frequent association in the same patient, and because leaky gut disorders and alterations of the intestinal microbiota (dysbiosis) have been described in these patients. These abnormalities may stimulate the immune system and therefore be involved in inflammatory processes (especially Th17). The available treatments are based on non-steroidal anti-inflammatory drugs, and in the event of failure or intolerance, biomedicines targeting TNF can be used. Therapeutic monoclonal antibodies against IL-17 have recently enriched the therapeutic arsenal. Although most anti-TNF agents have a beneficial effect on the rheumatologic and digestive aspects of these diseases, anti-IL-17 agents are not expected to be effective in inflammatory bowel diseases.

Indeed, a deleterious role of anti-IL-17 on the intestinal microbiota has even been demonstrated, which could result in a reduction of the systemic anti-inflammatory effect expected from these molecules, and consequently of the clinical benefit felt by the patient. In fact, anti-IL-17s lead to a significant decrease in Clostridiales, bacteria that participate in intestinal homeostasis.

Fiber is the main source of energy for colonic bacteria and its consumption favorably modifies the composition of the microbiota in just a few days. Their fermentation in the colon releases short-chain fatty acids (SCFAs). Clostridiales contain many strains producing SCFAs. These SCFAs can restore the intestinal barrier and promote certain anti-inflammatory cells, including regulatory T cells (Tregs), which are essential to the mechanisms in tolerance of the self. Fibers could therefore correct the intestinal abnormalities present in AxSpA patients and aggravated by anti-IL-17 drugs and thus improve the therapeutic response to these treatments.

The hypothesis is therefore that dietary fiber will correct the dysbiosis in AxSpA patients and increase the release of SCFAs, which favorably modulate the immune response and thus improve AxSpA.

Study Oversight

Has Oversight DMC: False
Is a FDA Regulated Drug?: False
Is a FDA Regulated Device?: False
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: False
Is an FDA AA801 Violation?: