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Pilot Cross-Sectional Study Assessing the Correlation between Marijuana Use and Rheumatoid Arthritis and Systemic

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Cannabis use in rheumatoid arthritis patients may prolong flares but does not increase their frequency. Further research is needed on cannabis and autoimmune disease management.

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Area of Science:

  • Rheumatology
  • Immunology
  • Pharmacology

Background:

  • Cannabis use is rising among patients with autoimmune rheumatic diseases for symptom relief.
  • The impact of cannabis on disease activity in these conditions is not well understood.
  • This study investigates the association between cannabis use and disease flares in rheumatoid arthritis and systemic lupus erythematosus.

Purpose of the Study:

  • To assess if cannabis use is linked to differences in flare frequency or duration in patients with rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), or both.
  • To explore potential risks associated with cannabis consumption in managing autoimmune rheumatic diseases.

Main Methods:

  • A cross-sectional study involving 85 adult patients with confirmed RA, SLE, or both, receiving standard treatment.
  • Data collected via structured interviews on cannabis use, flare characteristics, and patient-reported outcomes.
  • Demographics, comorbidities, substance use, and inflammatory markers were also recorded.

Main Results:

  • Cannabis use was reported by 30% of RA patients, 47% of SLE patients, and 71.4% of those with both diagnoses.
  • In RA patients, cannabis use was associated with a significantly higher odds of flares lasting longer than 3 days (OR 4.4).
  • No association was found between cannabis use and RA flare frequency; analyses for SLE and combined RA/SLE groups were limited by small sample sizes.

Conclusions:

  • Cannabis use in rheumatoid arthritis patients is associated with prolonged flares, not increased frequency.
  • The immunologic effects of cannabis in autoimmune diseases require further investigation.
  • Clinicians should discuss potential risks of cannabis use with patients managing autoimmune conditions.