# Pilot Study on Cannabis Use and Autoimmune Rheumatic Disease Exacerbations > **Author:** Benjamin Caplan, MD (ABFM Board Certified, MA Lic. #240562, NPI: 1962722637) > **Publisher:** CED Clinic (https://cedclinic.com) > **Canonical URL:** https://cedclinic.com/cannabis-use-autoimmune-rheumatic-diseases-correlation-study/ > **Published:** 2026-04-19T21:12:38-04:00 | **Last Modified / Clinically Audited:** 2026-09-28T10:17:49-04:00 > **Clinical Summary:** Explore the correlation between cannabis use autoimmune rheumatic diseases and disease activity in this pilot cross-sectional study. --- CED Clinical Relevance  #56Monitored Relevance  Early-stage or contextual signal requiring further evidence before action. 🔬 Evidence Watch  |  CED Clinic Rheumatoid ArthritisAutoimmune DiseaseInflammationDisease ActivityPilot Study Journal Southern medical journal Study Type Pilot Study Population Human participants Why This Matters This is among the first studies to systematically examine [cannabis use](https://cedclinic.com/cannabis-cardiovascular-health-insights-2024/) patterns in patients with autoimmune rheumatic diseases in a clinical setting where cannabis is legal. Understanding potential correlations between [cannabis use](https://cedclinic.com/cannabis-cardiovascular-health-insights-2024/) and disease flares is critical for rheumatologists counseling patients who increasingly use cannabis for symptom management. Clinical Summary This pilot cross-sectional study surveyed 85 patients with rheumatoid arthritis and/or systemic lupus erythematosus at a university rheumatology clinic, finding 30% reported cannabis use. The study assessed correlations between cannabis use and self-reported flare frequency and duration through structured interviews. As a pilot cross-sectional study with a relatively small sample size, the findings provide preliminary observational data but cannot establish causation. The study’s strength lies in its real-world clinical setting in a state with legal [cannabis access](https://cedclinic.com/medical-cannabis-delivery-services-growth-dmv-jamaica/). Dr. Caplan’s Take “While this pilot data helps fill a significant knowledge gap, I remain cautious about drawing clinical conclusions from cross-sectional observational data in autoimmune conditions where disease activity fluctuates significantly over time. The 30% usage rate aligns with what I observe clinically among patients with inflammatory conditions seeking symptom relief.” Clinical Perspective 🧠 Clinicians should document cannabis use patterns in rheumatology patients and monitor for any apparent correlations with disease activity while awaiting more robust longitudinal data. Patients should be counseled that current evidence cannot establish whether cannabis use affects their underlying autoimmune disease progression, though symptom relief remains a valid consideration in shared decision-making. 💬 Join the Conversation Have a question about how this applies to your situation? [Ask Dr. Caplan →](https://benjamincaplan.com/ask-dr-caplan) Want to discuss this topic with other patients and caregivers? [Join the forum discussion →](https://cedclinic.com/interact/discussion-forums/forum/cannabis-industry/) Have thoughts on this? Share it: [𝕏 Share on X](https://twitter.com/intent/tweet?text=Just%20read%20this%20on%20CEDclinic.com%3A%20Pilot%20Cross-Sectional%20Study%20Assessing%20the%20Correlation%20between%20Marijuana%20Use%20and%20...%20%40drcaplan&url=https%3A//pubmed.ncbi.nlm.nih.gov/41999642/)[in Share on LinkedIn](https://www.linkedin.com/sharing/share-offsite/?url=https%3A//pubmed.ncbi.nlm.nih.gov/41999642/)[🦥 Share on BlueSky](https://bsky.app/intent/compose?text=Just%20read%20this%3A%20Pilot%20Cross-Sectional%20Study%20Assessing%20the%20Correlation%20between%20Marijuana%20Use%20and%20...%20--%20via%20%40drcaplan.bsky.social%20https%3A//pubmed.ncbi.nlm.nih.gov/41999642/)[📷 Follow on Instagram](https://www.instagram.com/drbenjamincaplan/)[📝 Read more on Substack](https://substack.com/@doctorapproved)[🔔 Subscribe via RSS](https://cedclinic.com/category/cannabis-news/feed/) 📰 Source: [https://pubmed.ncbi.nlm.nih.gov/41999642/](https://pubmed.ncbi.nlm.nih.gov/41999642/) Table of Contents - [FAQ](#FAQ)[How common is cannabis use among patients with rheumatoid arthritis and lupus?](#How_common_is_cannabis_use_among_patients_with_rheumatoid_arthritis_and_lupus) - [Does cannabis use affect disease flare frequency in rheumatoid arthritis or lupus patients?](#Does_cannabis_use_affect_disease_flare_frequency_in_rheumatoid_arthritis_or_lupus_patients) - [Is it safe for patients with autoimmune diseases to use cannabis while on immunosuppressive medications?](#Is_it_safe_for_patients_with_autoimmune_diseases_to_use_cannabis_while_on_immunosuppressive_medications) - [Should rheumatologists routinely ask patients about cannabis use?](#Should_rheumatologists_routinely_ask_patients_about_cannabis_use) - [What are the limitations of this research for clinical decision-making?](#What_are_the_limitations_of_this_research_for_clinical_decision-making) - [Related](#Related) ## FAQ #### How common is cannabis use among patients with rheumatoid arthritis and lupus? This study found that 30% of patients with RA or SLE reported using cannabis. This represents a substantial portion of autoimmune disease patients, likely reflecting its growing acceptance for symptom management in states where it’s legal. #### Does cannabis use affect disease flare frequency in rheumatoid arthritis or lupus patients? The study assessed correlations between cannabis use and flare characteristics in RA and SLE patients receiving standard disease-modifying therapy. However, the complete results regarding flare frequency and duration differences between cannabis users and non-users are not provided in this summary, indicating this remains an area requiring further investigation. #### Is it safe for patients with autoimmune diseases to use cannabis while on immunosuppressive medications? This study included patients receiving disease-modifying antirheumatic drugs for at least 3 months, suggesting concurrent use occurs in clinical practice. However, specific safety data and drug interactions were not detailed in this pilot study, emphasizing the need for larger controlled trials to establish safety profiles. #### Should rheumatologists routinely ask patients about cannabis use? Given that 30% of patients in this study reported cannabis use, likely for symptom relief, routine screening appears clinically relevant. Open discussion allows for better monitoring of potential interactions with prescribed therapies and assessment of overall treatment effectiveness. #### What are the limitations of this research for clinical decision-making? This was a small pilot cross-sectional study (N=85) conducted at a single center, which limits generalizability. The study design cannot establish causation, and larger randomized controlled trials are needed before making evidence-based recommendations about cannabis use in autoimmune disease management. [https://cedclinic.com/contact/](https://cedclinic.com/contact/) Physician-Led, Whole-Person Care A doctor who takes the time to truly understand you. Personal care that starts with listening and is guided by experience and ingenuity. Health, Longevity, Wellness One-on-One Cannabis Guidance Metabolic Balance [Leave a Message](https://cedclinic.com/contact/) [Metabolic Care](https://cedclinic.com/metabolic/metabolic-how-it-works/) [Medical Consulting](https://cedclinic.com/book/) [Cannabis Care](https://cedclinic.com/book/) [https://cedclinic.com/contact/](https://cedclinic.com/contact/) RELATED READING AT CED CLINIC Continue exploring the evidence [Medical Cannabis for Autoimmune Pain Management According to Dr. Caplan](https://cedclinic.com/medical-cannabis-for-autoimmune-pain-relief-management/) Learn about [medical cannabis](https://cedclinic.com/therapeutic-benefits-of-thc/) applications for autoimmune [pain management](https://cedclinic.com/cbd-cbg-topicals-for-eczema/) from expert Dr. Caplan. [Read More](https://cedclinic.com/medical-cannabis-for-autoimmune-pain-relief-management/) [Cannabis Use Disorder Treatment Europe Review](https://cedclinic.com/cannabis-use-disorder-treatment-europe-evidence-watch/) Review evidence on [cannabis use disorder](https://cedclinic.com/sex-differences-cannabis-stress-reactivity-oxytocin/) treatments available in Europe. [Explore Review](https://cedclinic.com/cannabis-use-disorder-treatment-europe-evidence-watch/) [The effect of cannabis use on the time course of positive and negative affect in the daily life of youth.](https://cedclinic.com/cannabis-effects-youth-daily-mood-patterns/) Study examining how cannabis use influences mood fluctuations in young individuals. [Discover Insights](https://cedclinic.com/cannabis-effects-youth-daily-mood-patterns/) ### Related --- ### Verification & Medical Governance - **Lead Clinical Author:** Benjamin Caplan, MD - **Credentials:** Board Certified in Family Medicine (ABFM), Founder & CMO CED Clinic & CED Foundation, Author of *The Doctor-Approved Cannabis Handbook* (Penguin Random House). - **Clinical Scale:** 350,000+ lifetime evaluations overseen; 81,008-patient Real-World Evidence Registry (`~/.ced_rwe_vault.db`); 125,000+ peer-reviewed study literature observatory (`http://localhost:8768/api/explorer/terminal`). - **License Verification:** Commonwealth of Massachusetts License #240562 (https://checkahealthlicense.mass.gov/). - **NPI Registry:** 1962722637 (https://npiregistry.cms.hhs.gov/provider-view/1962722637). - **Ethics & Data Privacy:** Clinical registry observations adhere strictly to HIPAA Safe Harbor de-identification (45 CFR § 164.514(b)) and criteria for secondary research exemption under 45 CFR § 46.104(d)(4).