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Clinical Trial Summary

The goal of the ADEPT Study is to understand anhedonia in young people and how it changes based on treatments targeting the brain circuit underlying it. Anhedonia is a challenging mental health symptom that involves difficulty with motivation to experience pleasant events. This study could help develop treatments for people whose depression does not improve with traditional treatments. The ADEPT Study includes two phases. In Phase 1, participants are asked to go through a series of activities to measure anhedonia, including MRI scans, blood draws, behavioral tasks, clinical interviews, questionnaires, and app-based assessments of experiences and behaviors. Phase 2 involves therapeutic activities, such as transcranial magnetic stimulation (TMS), positive affect training, and, for some people, ketamine administration. If the participant qualifies and is interested, they may choose to do Phase 2 activities in addition to Phase 1.

Clinical Trial Description

In this research study, the investigators are trying to understand and change anhedonia in young people with depression. Anhedonia is experienced by many people who have depression, and it involves difficulty with motivation, energy, and anticipation of pleasant events. People who experience anhedonia often have more severe depression, experience depression for longer periods of time, and don't easily get better with traditional treatments. The investigators want to understand anhedonia early in life in order to help young people develop along healthy pathways and avoid chronic illness. Anhedonia is related to function in the brain's reward circuit, inflammation in the body, and people's experiences and behaviors, and will measure all of these. The investigators also want to understand anhedonia by using treatments that could improve it. To do that, activities will be used that have been used to treat depression and target the brain's reward circuit, which is believed to be the source of anhedonia. Finally, anhedonia will be measured over approximately 1 year to see how it changes with time, development, or treatment-based experiences. Eventually, the findings of this study might be useful for treating depression and improving people's quality of life. The study is looking for 300 young people (aged 15-25) who are currently experiencing depression to participate in our research study. In Phase 1 of our study, a series of activities will be conducted to understand the characteristics of anhedonia, including MRI scans, blood draws, behavioral tasks, clinical interviews, questionnaires, and measurement of real-life experiences and behavior using a phone app. This is called "phenotyping" because these characteristics are also called phenotypes. The eligibility process for Phase 1 will include an interview with questions about the participant's mood, experiences, and behaviors. This interview will take approximately 2-3 hours. With permission, interviews will be video recorded to facilitate training and supervision of study staff. Participants will also be asked questions about health, including treatment history. Study procedures include 4 visits over approximately 1 year. These may be broken into two sessions per visit for scheduling reasons. In addition, the study will include an ongoing smartphone app-based assessment of mood, experiences, and behavior. Visit 1 consists of an MRI scan, questionnaires about thoughts, emotions, and experiences, tasks on a computer and a blood draw by a trained phlebotomist. Visits 2-4 consists of a second MRI scan, questionnaires, tasks on a computer, a blood draw by a trained phlebotomist, and an interview about mood, experiences, and behaviors. Phase 2 of this study involves procedures that are therapeutic, meaning they can treat depression and anhedonia. These include transcranial magnetic stimulation (TMS), which is a noninvasive procedure to treat depression that uses magnetic fields to stimulate nerve cells in the brain. Visits with TMS will include Positive Affect Training, which involves changing behaviors and thoughts to build positive emotions. People whose depression does not improve with TMS may receive a single intravenous (IV, or into the vein) infusion of ketamine, a medicine that is used in hospitals for anesthesia and that can improve depression quickly. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT05487885
Study type Interventional
Source University of Pittsburgh
Contact Ashley Pogue, BA
Phone 248-912-7458
Email [email protected]
Status Recruiting
Phase Phase 4
Start date July 22, 2022
Completion date October 1, 2025

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