From Science Daily:
A Canadian research team led by Dr. Mark Ware from the Research Institute of the McGill University Health Centre (RI-MUHC) in Montréal has completed a national multicentre study looking at the safety of medical cannabis use among patients suffering from chronic pain. They found that patients with chronic pain who used cannabis daily for one year, when carefully monitored, did not have an increase in serious adverse events compared to pain patients who did not use cannabis. The results, which have been published online in The Journal of Pain, will serve as a benchmark study on the side effects of cannabis when used in pain management.
“This is the first and largest study of the long term safety of medical cannabis use by patients suffering from chronic pain ever conducted,” says lead author, Dr. Ware, pain specialist at the Montreal General Hospital of the MUHC and associate professor in Family Medicine and Anesthesia at McGill University. “We found that medical cannabis, when used by patients who are experienced users, and as part of a monitored treatment program for chronic pain over one year, appears to have a reasonable safety profile.”
As part of the Cannabis for the Management of Pain: Assessment of Safety Study (COMPASS), that started in 2004, the researchers followed 215 adult patients, with chronic non-cancer pain, who used medical cannabis, and compared them to a control group of 216 chronic pain sufferers who were not cannabis users. The study involved seven centres with pain management expertise across…