tDCS Intervention on Motivational Anhedonia of Major Depressive Disorder

Status Recruiting

Clinical Trial Summary

Study of tDCS intervention on motivational anhedonia of Major Depressive Disorder

Clinical Trial Description

All patients underwent a medical evaluation that included physical examination and routine laboratory studies before and after transcranial direct current stimulation (tDCS) treatment. Patients were randomly allocated to real group , sham group or control group. A threshold of 3 points on the Hamilton Depression scale has been specified by the National Institute for Health and Care Excellence to determine a clinically meaningful difference between active pharmacotherapy and placebo. We plan to enroll minimum total sample size of 37 participants in real, sham or control group respectively according to the Power and Sample Size program. The decision to enroll a patient was always made prior to randomization. The tDCS administrators had access to the randomization list. They had minimal contact with the patients, and no role in assessing depression. Each patient would be treated for continuous 14 days by tDCS in real and sham group. The control group was evaluated by clinical symptom scale, behavioral evaluation before and after 14 days.

Before the tDCS treatment, depression symptom of each participant was assessed by the Hamilton Depression Scale and the Beck Depression Self-Rating Scale. The anhedonia severity was evaluated by The Temporal Experience of Pleasure Scale, the Self-Report Apathy Evaluation Scale, Dimensional Anhedonia Rating Scale, the Motivation and Pleasure Scale.The neuroimaging data was collected using event-related potentials during monetary incentive delay task. After the last treatment, the same scales and neuroimaging scan were used again to assess the treatment effect of the tDCS and the underlying brain mechanism. Each participant was interviewed in detail about the adverse event of the tDCS intervention during the past 14 days.Every participant should take part in the study in voluntary and sign an informed consent form before the study. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT04425278
Study type	Interventional
Source	Anhui Medical University
Contact	Fengqiong Yu, MD
Phone	0086055115955155423
Email	yufengqin1@163.com
Status	Recruiting
Phase	N/A
Start date	March 1, 2018
Completion date	December 31, 2021

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.