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Comorbidity

Clinical

The presence of two or more conditions in the same patient at the same time.

Example: The VA's first veteran MDMA trial specifically requires both PTSD and alcohol use disorder to be present and treatment-resistant — see our coverage of that trial design.

What is comorbidity?

The presence of two or more conditions in the same patient at the same time.

How does comorbidity show up in psychedelic clinical trials?

The VA's first veteran MDMA trial specifically requires both PTSD and alcohol use disorder to be present and treatment-resistant. See our coverage of that trial design.

Related Articles

Policy Aug 26, 2026

Psychedelics in Uniform: What the Military Did to Soldiers, and What the VA Is Now Asking of Veterans

The Army spent decades dosing enlisted men with psychedelics they weren't told they were taking. Eighty years later, the VA and Pentagon are running versions of the same experiment again — with consent forms, IRBs, and an executive order behind them.

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