Trial reportJournal of clinical oncology : official journal of the American Society of Clinical Oncology2024
Oral Cannabis Extract for Secondary Prevention of Chemotherapy-Induced Nausea and Vomiting: Final Results of a Randomized, Placebo-Controlled, Phase II/III Trial.
Trial report in Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 3 of them syntheses that pooled 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.
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.
Who cites it
15 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Targeting Gastrointestinal Cancers with Cannabidiol: Mechanisms, Challenges, and Therapeutic Implications.Medical oncology (Northwood, London, England) · 2025Pooled it
- Efficacy of cannabinoids for the prophylaxis of chemotherapy-induced nausea and vomiting-a systematic review and meta-analysis.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2025Pooled it
- Cannabis and Cannabinoids in Adults With Cancer: ASCO Guideline.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2024Guideline
- Cannabinoids in Cancer: Molecular Mechanisms of Tumor Cell Death and Translational Opportunities.Biomolecules · 2026Review
- Neuropharmacology of Cannabinoids: A Comprehensive Review of Preclinical and Clinical Evidence for Hemp-Derived Extracts and Active Compounds.Pharmaceuticals (Basel, Switzerland) · 2026Review
- Therapeutic Use of Medical Cannabis Beyond Pain Management in Physical Medicine and Rehabilitation.Archives of internal medicine research · 2026Article
- Does Cannabinoid Use Reduce Opioid Utilization Among Patients with Gastrointestinal Cancer? Evidence from Epic COSMOS.Cancers · 2026Article
- Article
- Doctors' and pharmacists' perspectives on the clinical use of medicinal Cannabis: a cross-sectional study.Harm reduction journal · 2025Article
- From farm to bedside: Potential of medical cannabis in global health.Complementary therapies in medicine · 2025Review
- Cannabinoids for the prevention of chemotherapy-induced nausea and vomiting in oncological therapy: a systematic review.Journal of cancer survivorship : research and practice · 2025Review
- Healthcare Professionals' Perceptions About Medical Cannabis in Greece: A Qualitative Study.Journal of market access & health policy · 2025Article
- Assessing the Market Readiness for Medical Cannabis in Greece: A Qualitative Study of Patient Perspectives.Medicines (Basel, Switzerland) · 2025Article
- Marketing Management and Policymaking for Medical Cannabis: Overcoming Barriers and Shaping Strategies.Cannabis (Albuquerque, N.M.) · 2025Article
- Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
24 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe aim of this randomized, placebo-controlled, two-stage, phase II/III trial was to determine the efficacy of an oral cannabis extract in adults with refractory nausea and/or vomiting during moderately or highly emetogenic, intravenous chemotherapy despite guideline-consistent antiemetic prophylaxis. Here, we report results of the prespecified combined analysis including the initial phase II and subsequent phase III components. PATIENTS AND
methodsStudy treatment consisted of oral capsules containing either tetrahydrocannabinol 2.5 mg plus cannabidiol 2.5 mg capsules (THC:CBD) or matching placebo, taken three times a day from days -1 to 5, in addition to guideline-consistent antiemetics. The primary measure of effect was the difference in the proportions of participants with no vomiting or retching and no use of rescue medications (a complete response) during hours 0-120 after the first cycle of chemotherapy on study (cycle A).
resultsWe recruited 147 evaluable of a planned 250 participants from 2016 to 2022. Background antiemetic prophylaxis included a corticosteroid and 5-hydroxytryptamine antagonist in 97%, a neurokinin-1 antagonist in 80%, and olanzapine in 10%. THC:CBD compared with placebo improved the complete response rate from 8% to 24% (absolute difference 16%, 95% CI, 4 to 28,
conclusionTHC:CBD is an effective adjunct for chemotherapy-induced nausea and vomiting despite standard antiemetic prophylaxis, but was associated with additional adverse events. Drug availability, cultural attitudes, legal status, and preferences may affect implementation. Future analyses will evaluate the cost-effectiveness of THC:CBD.
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Registered trials
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.