Clinical trial Recruiting at 1 site Phase1; Phase2 Interventional Ages 18 and up

Cannabidiol (CBD) treatment for adults with sickle cell disease

Official title: Treatment of Sickle Cell Pain and Inflammation With Cannabidiol (SPICe)

Run by Icahn School of Medicine at Mount Sinai · NCT06930703 · Data updated 2026-11-12

This trial will try three doses of oral cannabidiol taken twice daily for 4 weeks in adults with sickle cell disease, compared with placebo, to see if it lowers inflammation and pain-related measures.

More Sickle Cell Disease trials

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment52 (estimated)
SponsorIcahn School of Medicine at Mount Sinai
Academic / other
Drugs / interventionscrizanlizumab
Locations1 site (Manhattan, New York)
StatusRecruiting
StartedApril 3, 2025
Main results expectedFebruary 1, 2027
Study endsFebruary 1, 2027
Registry record updatedJune 25, 2025
Trial IDNCT06930703 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18 or older with a clinical diagnosis of sickle cell disease who are not currently in pain crisis, willing to abstain from cannabis during the treatment period, and have a cannabinoid-negative urine test within 30 days are the intended participants.

Probably not a fit

People who are pregnant or nursing, unable to stop cannabis use, have known cannabinoid intolerance, or who are in an active pain crisis are unlikely to be eligible or receive benefit from this short dose-finding trial.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a randomized, double-blind, placebo-controlled dose-finding trial testing oral cannabidiol given twice daily at 200 mg, 400 mg, or 600 mg versus placebo for 4 weeks. Fifty-two adults with sickle cell disease who are not in an acute pain crisis and who have a negative urine cannabinoid test within 30 days will be randomized 1:1:1:1. The primary outcome is reduction in the inflammatory cytokine TNFα, with additional pain-related measures captured. Participants must be stable on any sickle cell–modifying therapies or home opioid regimens for at least 3 months prior to enrollment.

Why it matters

Potential benefit: If successful, cannabidiol could offer a non-opioid option that reduces inflammation and pain interference for some adults with sickle cell disease.

How similar studies have gone: Cannabidiol has demonstrated benefit in other conditions like certain epilepsies, but evidence for reducing inflammation or chronic pain in sickle cell disease is limited, making this a relatively novel dose-finding effort.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age \>18 years
* Clinical diagnosis of SCD (HbSS, HbSC, HbSβ+; Thal, HbSβ0Thal, HbS variants)
* Baseline score of 60 or lower on the ASCQ-Me 7-day pain interference domain
* If on a SCD modifying therapy (hydroxyurea, regular blood transfusions, L-glutamine, voxelotor, crizanlizumab), on stable dose for at least 3 months
* If using opioids for pain at home, on stable dose for at least 3 months
* One urine toxicology negative for cannabinoids within 30 days of randomization
* Willing to abstain from cannabis, medical and illicit, during study weeks 1 through 4 • Not pregnant or nursing
* If a woman capable of becoming pregnant, willing to use a medically accepted form of birth control for the duration of study participation. Accepted forms include oral contraception, medroxyprogesterone, contraceptive implants or patch, surgical sterilization, total abstinence.
* Able to consent for research

Exclusion Criteria:

* No known intolerance to cannabinoids
* No history of psychotic episode, psychosis, or active suicidality
* No contraindication to epidiolex with attention to potential side effects, concurrent medications/substances, and concurrent medical problems, as evaluated by a physician
* Not a daily cannabis user
* No diagnosis of active substance use disorder
* No ALT\>3 times the upper limit of normal

Where it's running

  • Icahn School of Medicine at Mount Sinai
    Manhattan, New York, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Cerebrovascular Reactivity Testing with HD-DOT in Sickle Cell Patients

    This study tests whether high-density diffuse optical tomography can measure brain blood flow and oxygen use in people with sickle cell disease, to see how these signals relate to stroke risk.

    Recruiting Washington University School of Medicine · St Louis, Missouri · NCT07776444

  • Adapting and testing PEN-Plus in Zambian primary care

    Aiming to see if the PEN-Plus package can be adapted and used in two Zambian hospitals to better manage chronic diseases like heart disease, diabetes, hypertension, and sickle cell in primary care.

    Recruiting Centre for Infectious Disease Research in Zambia · Lusaka, Lusaka Province · NCT07753681

  • Newborn Sickle Cell Screening in Mozambique

    We’re testing a three-part plan to help babies in Mozambique get diagnosed early for sickle cell disease and start care quickly.

    Recruiting St. Jude Children's Research Hospital · Nhamatanda, Sofala · NCT07719972

  • Optimizing Hydroxyurea in Children with Sickle Cell in Africa

    This study tests whether raising hydroxyurea to a maximum tolerated dose is safe and beneficial for Ugandan children with sickle cell anemia already taking a fixed daily dose.

    Recruiting Phase 1/2 Children's Hospital Medical Center, Cincinnati · Kampala · NCT07708714

  • Hematopoietic stem cell editing to treat sickle cell disease

    This study tests whether a patient’s own blood stem cells can be edited to remove the sickle cell triggering gene and then returned to the patient.

    Recruiting Phase 1 Boston Children's Hospital · Boston, Massachusetts · NCT07708350

  • Virtual reality options to help with VOC pain in adults with SCD

    This study tests whether headset-based virtual reality can help reduce pain for adults with sickle cell disease during vaso-occlusive crises treated in an infusion center.

    Recruiting University of Maryland, Baltimore · Baltimore, Maryland · NCT07674277

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.