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Completed

NCT Number: NCT00000435

dnaJ Peptide for Relieving Rheumatoid Arthritis

A small protein called dnaJ peptide may help people with rheumatoid arthritis (RA) by preventing their immune system cells from attacking their own tissues. The purpose of this study is to determine if small amounts of dnaJ peptide can "re-educate" immune cells in people with RA so that the cells stop attacking joint tissues.

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Key information

Age range

18 year–85 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

University of Arizona Health Sciences Center, Tucson, Arizona, United States

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About this study

Immune modulation is a promising new approach for the treatment of RA. Studies have shown that immune cells in the joints of people in the early stages of RA react strongly against dnaJ peptides from bacteria. These immune cells may also cross-react with human dnaJ peptides in the joints to cause inflammation. dnaJ may help RA by "re-educating" the immune system and dampening the abnormal inflammatory immune response in RA.

This study will last 7 months. Participants will be randomly assigned to receive either dnaJ or placebo by mouth. At screening, participants will have medical history, physical, and medication assessment. At screening, at 6 study visits every month after the start of treatment, and at 1 month follow-up, participants will have a joint exam, blood and urine collection, and will fill out a questionnaire about their condition.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Active rheumatoid arthritis as defined by the revised American College of Rheumatology (ACR) 1987 criteria. Evidence of active disease will be based on at least six swollen or nine tender joints.
  • Diagnosis of rheumatoid arthritis of less than 5 years
  • Reactivity to dnaJ
  • Agree to use acceptable methods of contraception
  • Able to understand and sign informed consent

Exclusion criteria

  • Patients taking more 7.5 mg of prednisone or disease modifying agents other than hydrochloroquine or sulfasalazine (i.e., gold, penicillamine, azathioprine, cyclophosphamide, methotrexate, cyclosporine, or anti-TNF agents)
  • Serum creatinine greater than 1.5 mg/dl
  • SGOT less than SGPT
  • Alkaline phosphatase greater than 2 times age/sex adjusted normal values
  • Hematocrit of less than 30
  • Platelets less than 130,000
  • History of lymphoma
  • Any active malignancy or cancer requiring treatment in the last 5 years, except for nonmelanoma skin cancers and carcinoma of the cervix in situ
  • Medical or psychiatric condition or active serious infection
  • Pregnant or breastfeeding

Treatment and study plan

dnaJ peptide

Drug

dnaJP1 was taken in pill form at 25mg/day for 6 months

None-placebo

Drug

placebo was taken in pill form at 25mg/day for 6 months

Primary outcomes

  1. Area under the curve or 'AUC' obtained by adding 0 for no response and 1 for an ACR 20 response for visits on Day 112, 140, and 168

    Time frame: time points 112, 140 and 168 of the 6-month trial

Secondary outcomes

  1. Day 112 ACR 20 score

    Time frame: Visit day 112 of the 6-month trial

Sponsors and collaborators

Lead sponsor

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

Nih

Registry information

Official study title

A Clinical Trial of Shared Epitope Peptides in Rheumatoid Arthritis (RA)

Important dates

Study start
1999
Study completion
2004
First posted
Jan 24, 2000
Registry last updated
Jul 31, 2007

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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