Canada: Married B.C. therapists face another lawsuit over actions in MDMA therapy trial

CBC is following up their original report with new revalations


A second participant in a clinical trial for MDMA-assisted psychotherapy conducted by two married B.C. therapists is taking them to court, alleging their actions during the study left him suicidal and cost him his marriage.

Petr Kopet filed a civil claim against Donna Dryer and Richard Yensen in B.C. Supreme Court earlier this year, alleging they dissuaded him from resuming antidepressant medications when he “fell into a deep depression” during the trial in Vancouver in 2016.

Kopet, who had signed up for the trial hoping to find treatment for his post-traumatic stress disorder, says in his claim that his mental health only continued to deteriorate after that and he became suicidal.

“His mood changed to the point where others felt unsafe around him. Relationships with others were broken or damaged,” the claim says.

“The plaintiff ultimately attended at Vancouver General Hospital for emergency treatment which included placing the plaintiff back on antidepressants.”

The claim goes on to allege that Kopet later discovered Yensen and Dryer had disclosed personal information about him to another trial participant, including private details divulged during therapy sessions.

Kopet told CBC in a written statement that this discovery is what prompted him to sue.

“I knew Yensen and Dryer were awful as professional therapists during the clinical trial but I didn’t know they were that awful until … I became aware of the fact that they had been divulging copious amounts of my personal information,” he alleged.


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