Cannabis Extract and Chronic Back Pain-Simply Explained
Published: Nature Medicine, September 2025 Researchers: Matthias Karst et al., Hannover Medical School, Germany — multicenter European trial
1. What Was Studied?
This study tested whether a specific cannabis extract — called VER-01 — could reduce chronic lower back pain in people who hadn't gotten enough relief from standard non-opioid medications.
Chronic lower back pain means pain that has lasted more than three months. It's one of the most common reasons people miss work, lose quality of life, and end up on long-term medication. This trial enrolled 820 adults and is considered a Phase 3 trial — the same gold-standard level of testing used for pharmaceutical drug approvals.
It was published in Nature Medicine, one of the most respected medical journals in the world.
2. What Did They Find?
After 12 weeks, participants taking VER-01 reported meaningful reductions in pain scores compared to the placebo group
Pain continued to decrease over the following six months of open-label treatment, dropping nearly 3 points on a 10-point pain scale
Sleep quality and physical function also improved alongside pain relief
Side effects were mostly mild to moderate and temporary
No signs of dependence or withdrawal were observed during the trial period
The effects held up over 12 months of follow-up — not just short-term
3. What This Means
This is the most rigorous cannabis pain study ever published. Experts who were not involved in the study called it the first high-quality evidence that something in the cannabis plant can meaningfully treat pain.
That's a big statement — and it's earned here. Most earlier cannabis pain research was small, short, or poorly controlled. This was 820 people, over a year, in a Phase 3 design, published in a top-tier journal. The bar was high and the study cleared it.
One important nuance: VER-01 is a very specific, pharmaceutical-grade cannabis extract — not a CBD oil, not a gummy, not something you can buy off a shelf. As one independent researcher put it, smoking cannabis and taking VER-01 are about as comparable as eating hazelnuts and eating Nutella. Same basic origin, completely different product.
What this does tell us: the cannabis plant contains compounds that, when properly extracted and dosed, can produce real, measurable pain relief in humans over time.
4. What This Does NOT Mean
This does not mean cannabis products currently available to consumers will produce the same results
VER-01 is a pharmaceutical-grade extract not yet commercially available — it is not the same as CBD oil or any over-the-counter product
This study was conducted in people with specific chronic low back pain who hadn't responded to other treatments — results may not apply to all pain types
Long-term safety data beyond 12 months is still limited
Independent experts noted that past claims about cannabis products not being addictive have sometimes proven incorrect — more monitoring is needed
5. Bottom Line
The most rigorous cannabis pain trial ever published found real, lasting relief for chronic lower back pain — but the product tested is pharmaceutical-grade and not the same as anything available to consumers today.
🗣️ Mary Jane's Take This is the study the cannabis industry has been waiting for. Not because it proves your CBD oil will fix your back — it doesn't say that. But it proves the plant has something real to offer for pain when the science is done properly. That matters for everyone in this space.
