Evidence map›Paper›PMID 32020875›Full record

ReviewBMC complementary medicine and therapies2020

Therapeutic use of cannabis and cannabinoids: an evidence mapping and appraisal of systematic reviews.

Nadia Montero-Oleas, Ingrid Arevalo-Rodriguez, Solange Nuñez-González, Andrés Viteri-García, Daniel Simancas-Racines

Open access · goldAbstract readReview
In one paragraph

Review in BMC complementary medicine and therapies, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 3 pooled it
11.9field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 3 syntheses or guidelines pooled it, 93 citations in OpenAlex.

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  9. Determination of ΔForensic toxicology · 2024
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  12. Therapeutic use of medical Cannabis in neurological diseases: a clinical update.Journal of neural transmission (Vienna, Austria : 1996) · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Nadia Montero-OleasCentro de investigación en Salud Pública y Epidemiología Clínica (CISPEC). Facultad de Ciencias de la Salud "Eugenio Espejo", Universidad UTE, Quito, Ecuador. nadiamonteromd@gmail.com.ORCID http://orcid.org/0000-0002-5375-3781
Ingrid Arevalo-RodriguezClinical Biostatistics Unit, Hospital Ramon y Cajal (IRYCIS), CIBER of Epidemiology and Public Health, Madrid, Spain.
Solange Nuñez-GonzálezCentro de investigación en Salud Pública y Epidemiología Clínica (CISPEC). Facultad de Ciencias de la Salud "Eugenio Espejo", Universidad UTE, Quito, Ecuador.
Andrés Viteri-GarcíaCentro de investigación en Salud Pública y Epidemiología Clínica (CISPEC). Facultad de Ciencias de la Salud "Eugenio Espejo", Universidad UTE, Quito, Ecuador.
Daniel Simancas-RacinesCentro de investigación en Salud Pública y Epidemiología Clínica (CISPEC). Facultad de Ciencias de la Salud "Eugenio Espejo", Universidad UTE, Quito, Ecuador.
Universidad UTE · ECCentro de Investigación Biomédica en Red · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough cannabis and cannabinoids are widely used with therapeutic purposes, their claimed efficacy is highly controversial. For this reason, medical cannabis use is a broad field of research that is rapidly expanding. Our objectives are to identify, characterize, appraise, and organize the current available evidence surrounding therapeutic use of cannabis and cannabinoids, using evidence maps.

methodsWe searched PubMed, EMBASE, The Cochrane Library and CINAHL, to identify systematic reviews (SRs) published from their inception up to December 2017. Two authors assessed eligibility and extracted data independently. We assessed methodological quality of the included SRs using the AMSTAR tool. To illustrate the extent of use of medical cannabis, we organized the results according to identified PICO questions using bubble plots corresponding to different clinical scenarios.

resultsA total of 44 SRs published between 2001 and 2017 were included in this evidence mapping with data from 158 individual studies. We extracted 96 PICO questions in the following medical conditions: multiple sclerosis, movement disorders (e.g. Tourette Syndrome, Parkinson Disease), psychiatry conditions, Alzheimer disease, epilepsy, acute and chronic pain, cancer, neuropathic pain, symptoms related to cancer (e.g. emesis and anorexia related with chemotherapy), rheumatic disorders, HIV-related symptoms, glaucoma, and COPD. The evidence about these conditions is heterogeneous regarding the conclusions and the quality of the individual primary studies. The quality of the SRs was moderate to high according to AMSTAR scores.

conclusionsEvidence on medical uses of cannabis is broad. However, due to methodological limitations, conclusions were weak in most of the assessed comparisons. Evidence mapping methodology is useful to perform an overview of available research, since it is possible to systematically describe the extent and distribution of evidence, and to organize scattered data.

Indexed as

CannabisCannabinoidsHumansMedical MarijuanaSystematic Reviews as TopicCannabinoidsMedical MarijuanaCannabinoidsCannabisEvidence mappingEvidence synthesisMedical marijuana

Identifiers

PMID32020875
PMCPMC7076827
OpenAlexW3007673547

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.