Completed

Investigations of Blood, Synovial Tissue and Synovial Fluids From Patients With Rheumatoid Arthritis and Related Conditions

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What is being collected

Data Collection

Who is being recruted

Arthritis+17

+ Arthritis, Rheumatoid

+ Autoimmune Diseases

See all eligibility criteria
How is the trial designed

Observational
Study Start: December 1991
See protocol details

Summary

Principal SponsorNational Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: December 1, 1991

Actual date on which the first participant was enrolled.

Blood, synovial fluids and/or synovial tissues will be obtained from patients with rheumatoid arthritis and related chronic inflammatory arthritides. The synovial tissues will be obtained by one of the following methods: a) needle biopsy, or b) at the time of a total joint replacement or a therapeutic arthroscopic procedure. These materials will be utilized for laboratory studies of etiopathogenetic mechanisms of rheumatoid arthritis and related autoimmune joint diseases.

Official TitleInvestigations of Blood, Synovial Tissue and Synovial Fluids From Patients With Rheumatoid Arthritis and Related Conditions
NCT00001291
Principal SponsorNational Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

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

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

ArthritisArthritis, RheumatoidAutoimmune DiseasesBone DiseasesConnective Tissue DiseasesImmune System DiseasesJoint DiseasesMusculoskeletal DiseasesOsteoarthritisPsoriasisRheumatic DiseasesSkin DiseasesSpinal DiseasesSpondylitisSynovitisArthritis, PsoriaticSkin and Connective Tissue DiseasesSkin Diseases, PapulosquamousSpondylarthritisSpondylarthropathies

Criteria

Patients with rheumatoid arthritis, particularly new onset disease, but certain patients with other forms of arthritis will also be included. Significantly swollen or tender knee or significantly swollen shoulders, elbows, wrists, ankles, olecranon bursa or even smaller joints. Synovial tissue specimens will not be obtained from patients when any of the following conditions are present: abnormal bleeding or clotting tests, platelet count less than 100,000, or sepsis.

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

Suspended

National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)

Bethesda, United StatesOpen National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) in Google Maps
CompletedOne Study Center