Ketamine and Scopolamine Infusions for Treatment-resistant Major Depressive Disorder

Ketamine infusions resulted in an acute reduction in global depression scores and in severity of suicidal ideation. Scopolamine infusions produced also a significant improvement in depression that was sustained over time.

We therefore plan to investigate the feasibility and efficacy of open-label repeated intravenous administration of ketamine and scopolamine combined in this population of severely depressed, treatment-resistant patients. The results from this study could lead to the development of new strategies for the treatment of patients with TRD.

This trial was withdrawn due to a lack of funding.

Topic Treatment-Resistant Depression Depression
Compound Placebo Ketamine
Country United States of America
Visit trial

Trial Details



Trial Number

Sponsors & Collaborators

Massachusetts General Hospital
Massachusettes General Hospital has launched the MGH Center for the Neuroscience of Psychedelics. The announcement has now been done via YouTube, and the formal launch will be in fall 2020.

Measures Used

Hamilton Depression Rating Scale
The Hamilton Depression Rating Scale (HDRS) is a multiple item questionnaire used to provide an indication of depression, and as a guide to evaluating recovery. The scale consists of 17 items which each item being scoring on a 3 or 5 point scale. The higher the score, the more likely a person is depressed.

Data attribution

A large set of the trials in our database are sourced from ClinicalTrials.gov (CTG). We have modified these post to display the information in a more clear format or to correct spelling mistakes. Our database in actively updated and may show a different status (e.g. completed) if we have knowledge of this update (e.g. a published paper on the study) which isn't reflected yet on CTG. If a trial is not sourced from CTG, this is indicated on this page and you can follow the link to the alternative source of information.