Are cannabinoids effective for the management of chemotherapy induced nausea and vomiting?

Medwave. 2017 Dec 28;17(9):e7119. doi: 10.5867/medwave.2017.09.7119.
[Article in Spanish, English]

Abstract

Introduction: Nausea and vomiting are common side effects in cancer patients treated with chemotherapy. Proper control of these symptoms might improve quality of life in these patients. Addition of cannabinoids to standard antiemetic treatment has been proposed in order to improve control of these symptoms.

Methods: To answer this question we used Epistemonikos, the largest database of systematic reviews in health, which is maintained by screening multiple information sources, including MEDLINE, EMBASE, Cochrane, among others. We extracted data from the systematic reviews, reanalyzed data of primary studies, conducted a meta-analysis and generated a summary of findings table using the GRADE approach.

Results and conclusions: We identified 16 systematic reviews that include 61 primary studies. Out of these, four were randomized trials that answered our question. At present, given that the certainty of the evidence is very low, it is unclear whether the addition of cannabinoids to standard antiemetic regimes benefits patients with chemotherapy induced nausea and vomiting. Cannabinoids probably increase adverse effects substantively.

Introducción: El tratamiento de las náuseas y vómitos inducidos por quimioterapia podría mejorar la calidad de vida de los pacientes oncológicos; para lograrlo se ha propuesto la adición de cannabinoides a los esquemas de antieméticos habituales.

Métodos: Para responder esta pregunta utilizamos Epistemonikos, la mayor base de datos de revisiones sistemáticas en salud, la cual es mantenida mediante búsquedas en múltiples fuentes de información, incluyendo MEDLINE, EMBASE, Cochrane, entre otras. Extrajimos los datos desde las revisiones identificadas, reanalizamos los datos de los estudios primarios, realizamos un metanálisis y preparamos tablas de resumen de los resultados utilizando el método GRADE.

Resultados y conclusiones: Identificamos 16 revisiones sistemáticas que en conjunto incluyen 61 estudios primarios, de los cuales cuatro son ensayos aleatorizados que responden a la pregunta de interés. Concluimos que no hay claridad respecto a si los cannabinoides otorgan un beneficio al añadirlos a esquemas antieméticos habituales para el control de náuseas y vómitos inducidos por quimioterapia, porque la certeza de la evidencia es muy baja. Probablemente aumentan los efectos adversos de manera sustantiva.

Publication types

  • Meta-Analysis
  • Review

MeSH terms

  • Antiemetics / administration & dosage
  • Antiemetics / therapeutic use
  • Antineoplastic Agents / administration & dosage
  • Antineoplastic Agents / adverse effects
  • Cannabinoids / administration & dosage
  • Cannabinoids / adverse effects
  • Cannabinoids / therapeutic use*
  • Databases, Factual
  • Humans
  • Nausea / chemically induced
  • Nausea / drug therapy*
  • Neoplasms / drug therapy
  • Quality of Life
  • Randomized Controlled Trials as Topic
  • Vomiting / chemically induced
  • Vomiting / drug therapy*

Substances

  • Antiemetics
  • Antineoplastic Agents
  • Cannabinoids