A Mapping Literature Review of Medical Cannabis Clinical Outcomes and Quality of Evidence in Approved Conditions in the USA from 2016 to 2019.

Cannabidiol Cannabinoids Cannabis Commonly recommended conditions for marijuana treatment Marijuana clinical outcomes Marijuana efficacy Medical marijuana

Journal

Medical cannabis and cannabinoids
ISSN: 2504-3889
Titre abrégé: Med Cannabis Cannabinoids
Pays: Switzerland
ID NLM: 101765665

Informations de publication

Date de publication:
Jun 2021
Historique:
received: 11 09 2020
accepted: 03 02 2021
entrez: 22 10 2021
pubmed: 23 10 2021
medline: 23 10 2021
Statut: epublish

Résumé

In 2017, a National Academies of Sciences, Engineering, and Medicine (NASEM) report comprehensively evaluated the body of evidence regarding cannabis health effects through the year 2016. The objectives of this study are to identify and map the most recently (2016-2019) published literature across approved conditions for medical cannabis and to evaluate the quality of identified recent systematic reviews, published following the NASEM report. Following the literature search from 5 databases and consultation with experts, 11 conditions were identified for evidence compilation and evaluation: amyotrophic lateral sclerosis, autism, cancer, chronic noncancer pain, Crohn's disease, epilepsy, glaucoma, human immunodeficiency virus/AIDS, multiple sclerosis (MS), Parkinson's disease, and posttraumatic stress disorder. A total of 198 studies were included after screening for condition-specific relevance and after imposing the following exclusion criteria: preclinical focus, non-English language, abstracts only, editorials/commentary, case studies/series, and non-U.S. study setting. Data extracted from studies included: study design type, outcome definition, intervention definition, sample size, study setting, and reported effect size. Few completed randomized controlled trials (RCTs) were identified. Studies classified as systematic reviews were graded using the Assessing the Methodological Quality of Systematic Reviews-2 tool to evaluate the quality of evidence. Few high-quality systematic reviews were available for most conditions, with the exceptions of MS (9 of 9 graded moderate/high quality; evidence for 2/9 indicating cannabis improved outcomes; evidence for 7/9 indicating cannabis inconclusive), epilepsy (3 of 4 graded moderate/high quality; 3 indicating cannabis improved outcomes; 1 indicating cannabis inconclusive), and chronic noncancer pain (12 of 13 graded moderate/high quality; evidence for 7/13 indicating cannabis improved outcomes; evidence from 6/7 indicating cannabis inconclusive). Among RCTs, we identified few studies of substantial rigor and quality to contribute to the evidence base. However, there are some conditions for which significant evidence suggests that select dosage forms and routes of administration likely have favorable risk-benefit ratios (i.e., epilepsy and chronic noncancer pain). The body of evidence for medical cannabis requires more rigorous evaluation before consideration as a treatment option for many conditions, and evidence necessary to inform policy and treatment guidelines is currently insufficient for many conditions.

Identifiants

pubmed: 34676348
doi: 10.1159/000515069
pii: mca-0004-0021
pmc: PMC8525213
doi:

Types de publication

Systematic Review

Langues

eng

Pagination

21-42

Informations de copyright

Copyright © 2021 by S. Karger AG, Basel.

Déclaration de conflit d'intérêts

The Consortium for Medical Marijuana Clinical Outcomes Research provided funding support for 4 contributors to this study, where S.J. and B.C. received graduate student stipend support in 2019–2020, and A.G., J.H.C., and A.W. received salary offset for serving as University of Florida faculty leads in 2019–2020. No other authors have conflicts of interest to declare.

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Auteurs

Sebastian Jugl (S)

Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA.
Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA.

Aimalohi Okpeku (A)

Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA.
Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA.

Brianna Costales (B)

Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA.
Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA.

Earl J Morris (EJ)

Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA.
Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA.

Golnoosh Alipour-Haris (G)

Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA.
Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA.

Juan M Hincapie-Castillo (JM)

Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA.
Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA.

Nichole E Stetten (NE)

Occupational Therapy, University of Florida, Gainesville, Florida, USA.

Ruba Sajdeya (R)

Epidemiology, University of Florida, Gainesville, Florida, USA.

Shailina Keshwani (S)

Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA.
Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA.

Verlin Joseph (V)

Epidemiology, University of Florida, Gainesville, Florida, USA.

Yahan Zhang (Y)

Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA.
Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA.

Yun Shen (Y)

Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA.
Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA.

Lauren Adkins (L)

Health Sciences Center Libraries, University of Florida, Gainesville, Florida, USA.

Almut G Winterstein (AG)

Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA.
Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA.

Amie Goodin (A)

Pharmaceutical Outcomes and Policy, University of Florida, Gainesville, Florida, USA.
Center for Drug Evaluation and Safety (CoDES), University of Florida, Gainesville, Florida, USA.

Classifications MeSH