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Largest-Ever Study Finds Medical Cannabis Effective for Cancer Symptoms, Suggests Tumor-Fighting Potential

AI-driven analysis of over 10,000 studies reveals 75% positive outcomes, prompting calls for federal reclassification to enable human trials.

There was a consensus that cannabis could treat symptoms such as nausea, appetite loss and pain, the study found
Medical cannabis shows promise.
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Overview

  • The Whole Health Oncology Institute's meta-analysis, published on April 15, 2025, is the largest-ever study of medical cannabis and cancer, analyzing over 10,000 studies using AI techniques.
  • Findings show 75% of studies support medical cannabis for alleviating cancer-related symptoms like nausea, inflammation, and appetite loss, with evidence suggesting potential tumor-fighting properties.
  • The study highlights cannabis's ability to induce cancer cell death and inhibit their spread, though larger clinical trials are needed to confirm its efficacy in humans.
  • Researchers cite federal Schedule I classification as a major barrier to conducting large-scale human trials and urge the DEA to reclassify cannabis to facilitate further research.
  • Experts remain divided, with some skeptical of cannabis's direct anticancer effects, emphasizing the need for comprehensive clinical validation despite promising preclinical and observational evidence.