Medical Cannabis: Study Shows Improvement for 12 Months
An Australian study followed patients for 12 months and found post-medical cannabis improvements in quality of life, sleep, fatigue, pain, and depression.
Sometimes, improving quality of life does not just mean feeling less pain. It means being able to sleep better, have more energy, manage anxiety, and reclaim small moments of well-being in daily life. An Australian study followed patients for a year and observed that users of medical cannabis maintained improvements across these different aspects of health.
Published in the journal PLOS ONE, the study is part of the QUEST Initiative, a prospective observational study that followed adults with chronic conditions who were prescribed medical cannabis oil in Australia.
Medical cannabis and quality of life
The study began with 2,744 adult participants recruited between November 2020 and December 2021. They were identified by 114 healthcare professionals across different regions of Australia.
Of the initial participants, 2,353 completed at least one follow-up questionnaire. By the end of 12 months, 778 people had completed this stage.
Researchers used validated questionnaires to evaluate health-related quality of life, pain, fatigue, sleep, anxiety, depression, and motor function.
Among the most frequent conditions were musculoskeletal pain, neuropathic pain, insomnia, anxiety, and mixed anxiety-depressive disorder.
The findings indicated that the gains initially observed were maintained throughout the analyzed period among participants who continued the follow-up.
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Medical cannabis for pain, sleep, and fatigue
One of the main findings involved health-related quality of life.
Medical cannabis was also associated with reductions in fatigue and sleep disturbance over the 12-month period.
Among participants with chronic pain, improvements were observed in measures of pain severity and pain interference with daily life.
The study also found improvements in anxiety and depression symptoms among participants presenting with these conditions.
Despite the results, researchers found no conclusive evidence of improvement in motor function among people with movement disorders.
What does the study say about medical cannabis?
According to the authors, the improvements observed within the first three months were sustained throughout the one-year follow-up.
The conclusion highlights that patients with chronic conditions who received medical cannabis showed statistically significant and clinically meaningful improvements in quality of life, fatigue, and sleep disturbance.
Improvements were also observed in pain, anxiety, depression, and insomnia in cohorts with those specific conditions.
The findings, however, do not mean that medical cannabis directly caused all these changes.
This is because the work is an observational study. There was no randomized control group to compare outcomes against people who did not receive the treatment. In addition, the number of participants decreased considerably by the 12-month follow-up.
Another important factor is that the study involved people prescribed medical cannabis products in real-world clinical care conditions, which broadens the understanding of its use in clinical practice, but also introduces variables that may influence results.
Medical cannabis requires medical supervision
The QUEST study contributes to the growing body of evidence on the use of medical cannabis in individuals with chronic health conditions, particularly by observing participants over a longer period.
Even so, the researchers themselves emphasize that the findings should inform clinical decision-making and public policy, rather than be interpreted as a universal treatment recommendation.
The choice of products, composition, dose, frequency, and duration of use depends on the health condition, patient history, and evaluation by a qualified healthcare professional.
More than a promise, the data helps paint a picture of a scientific field that is still expanding: the real-world tracking of patients using medical cannabis.
Key study findings
- Clinically significant improvement in quality of life.
- Reduction in fatigue-related measures.
- Improvement in sleep disturbance.
- Reduction of pain symptoms among participants with chronic pain.
- Improvement in anxiety and depression in groups with those conditions.
- Lack of conclusive evidence regarding improvements in motor function.