RecruitingNCT06933134

Prospective Validation of a Pharmacological Biomarker for Low-Dose Rituximab in Rheumatoid Arthritis


Sponsor

University Hospital, Tours

Enrollment

30 participants

Start Date

Apr 23, 2026

Study Type

OBSERVATIONAL

Conditions

Summary

Evaluation of the prediction of clinical response to rituximab at a dose of 1000 mg once using a pharmacological model including several pharmacokinetic and pharmacodynamic parameters.


Eligibility

Min Age: 18 Years

Inclusion Criteria5

  • Age ≥ 18 years
  • Diagnosis of rheumatoid arthritis meeting ACR/EULAR 2010 criteria.
  • Candidates for a Low Dose regimen: on standard dose rituximab and with a good clinical response according to the referring rheumatologist. No maximum duration of use of standard-dose rituximab has been defined.
  • In the case of co-prescription of csDMARDs (Methotrexate, Leflunomide, Salazopyrine, Plaquenil), the dose must have been stable for 3 months.
  • If corticosteroids are co-prescribed, the dose should be ≤ 10 mg/d and stable for 3 months.

Exclusion Criteria6

  • Other associated targeted disease-modifying therapy
  • Sjögren's syndrome or other associated inflammatory rheumatism
  • Fibromyalgia or other pathology having an impact on the assessment of disease activity
  • Any active haematological disease affecting lymphocytes (chronic lymphocytic leukaemia, Hodgkin's and non-Hodgkin's lymphomas, lymphoplasmacytic lymphoma, T lymphoma).
  • Opposition to data processing
  • No inclusion of persons covered by articles L. 1121-5 to L. 1121-8 and L. 1122-1-2 of the Public Health Code (e.g. minors, protected adults, etc.).

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Locations(1)

University hospital

Tours, France

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NCT06933134


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