Clinical trials: Diminished Pleasure
Anhedonia, Depression
Sleep and Healthy Aging Research on Depression for Younger Women
Compelling evidence indicates inflammation plays a role in depression, but potential mechanisms linking inflammation to depression, such as dysregulated reward processing, are poorly understood.
- Trial name
- NCT03848715
- Testing
- Endotoxin
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of California, Los Angeles
Anhedonia, Depression
A Neurobiological Model of Anhedonia
The purpose of this research study is to better understand anhedonia in Major Depressive Disorder by investigating the reward-related neural and inflammatory correlates.
- Trial name
- NCT05629520
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Milton S. Hershey Medical Center
Depression, Anhedonia
Multimodal Differences in Effort-based Decision-Making in Depression
Major depressive disorder (MDD) is a serious condition that causes long-term symptoms such as feeling sad, losing interest in activities, and having thoughts of self-harm.
- Trial name
- BBQS (NCT06648460)
- Testing
- Effort-based Decision-Making Task
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Georgia Institute of Technology
Depression, Depressive Disorder
Reward Processing and Depressive Subtypes: Identifying Neural Biotypes
Deficits in motivation and pleasure are common in depression, and thought to be caused by alterations in the ways in which the brain anticipates, evaluates, and adaptively uses reward-related information.
- Conditions
- Depression, Depressive Disorder, Major Depressive Disorder, Major Depressive Episode
- Trial name
- NCT06080646
- Testing
- cross-sectional MRI and EEG assessments (NO INTERVENTION)
- Where
- United States
- Volunteers
- 158 people, healthy volunteers welcome
- Sponsor
- San Francisco Veterans Affairs Medical Center
Anhedonia
Serotonin-receptor Agonism in Reward Processing
There is growing animal and human evidence for role of 5HT1A receptor agonism in treating depression and reward deficits. The next step is to translate this evidence directly into humans by characterising the effects of…
- Trial name
- SARP (NCT05357547)
- Testing
- Buspirone 20mg
- Where
- United Kingdom
- Volunteers
- 63 people, healthy volunteers welcome
- Sponsor
- University of Oxford
ASD
Proof of Mechanism Study for the Treatment of Social Anhedonia in ASD
This project will use the experimental medicine approach of a Phase IIa Proof of Mechanism 16-week, randomized, double-blind, controlled trial of L-DOPA versus placebo administration in combination with a 16 week social skills…
- Trial name
- ACEP4 (NCT03243552)
- Testing
- Social Skills Training
- Where
- United States
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- University of California, Los Angeles
Smoking
Effects of Quitting Study A Test of Pre-clinical Findings
The most widely-accepted animal model of nicotine withdrawal states stopping nicotine makes rewarding events become less rewarding. The current study will test if this is true in humans.
- Trial name
- NCT01824511
- Testing
- Smokers cease smoking
- Where
- 2 sites in United States
- Volunteers
- 287 people, healthy volunteers welcome
- Sponsor
- University of Vermont
Subthreshold Depression, Positive Emotions
The Effect of Transcranial Direct Current Stimulation (tDCS) in Improving Emotion Health
The goal of this clinical trial is to investigate how transcranial direct current stimulation (tDCS) affects emotion functions in young adults aged 18-35 from the local community, including both male and female participants.
- Conditions
- Subthreshold Depression, Positive Emotions, Negative Emotions, Anhedonia
- Trial name
- NCT07319143
- Testing
- Transcranial Direct Current Stimulation
- Where
- Hong Kong
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- The University of Hong Kong
Psychiatric Disorders Mood, Anhedonia
Pramipexole for Anhedonic Depression
The heterogeneity of depression suggests that several different neurocircuits and pathophysiological mechanisms are involved. Anhedonia - the inability to experience pleasure from, or the lack of motivation to carry out, usually…
- Conditions
- Psychiatric Disorders Mood, Anhedonia, Depression
- Trial name
- PRIME-PRAXOL (NCT05355337)
- Testing
- Pramipexole
- Where
- Sweden
- Volunteers
- 85 people, healthy volunteers welcome
- Sponsor
- Region Skane
Major Depressive Disorder
The Effect of Ketamine on Aesthetics and Role for Antidepressant Effects
The aim of this study is to assess the impact of ketamine on aesthetic perception and processing. This study assesses the role of these effects in facilitating ketamine's antidepressant properties, with a focus on anhedonia.
- Trial name
- NCT05320107
- Testing
- Ketamine
- Where
- Austria
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Major Depressive Disorder
tVNS Effects on Motivation in Depression
Attaining goals or rewards commonly entails response costs. In light of cost and benefits, how do participants decide what effort should be put in to give it a shot? Figuratively, you may "go with your gut", but the literal…
- Trial name
- NCT05120336
- Testing
- transcutaneous vagus nerve stimulation
- Where
- Germany
- Volunteers
- 67 people, healthy volunteers welcome
- Sponsor
- University Hospital Tuebingen
Anhedonia in Healthy Volunteers
The Effect of an Edible Algal Extract (Ulva Lactuca) on the Component of Depression in Healthy Volunteers With Anhedonia
The effects of the seaweed extract were evaluated on the animal model equivalent of depression compared with a control group treated with the carrier (spring water) and a reference group treated with Imipramine and showed…
- Trial name
- NCT03545399
- Testing
- Ulva Lactuca
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- CEN Biotech
Depressive Disorder, Major
Dopamine Modulation of Motivation and Motor Function in Major Depression & Inflammation
A large body of evidence on depression heterogeneity point to an "immunometabolic" subtype characterized by the clustering of immunometabolic dysregulations with atypical behavioral symptoms related to energy homeostasis.
- Trial name
- MOTIVADE (NCT05909267)
- Testing
- L-dopa/Carbidopa
- Where
- Germany
- Volunteers
- 165 people, healthy volunteers welcome
- Sponsor
- Charite University, Berlin, Germany
Stress, Anhedonia
Brain Mechanisms of Emotion and Motivation: A Mind-Body Study
The purpose of this research study is to investigate how the brain processes emotions, and the way these processes affect behavior.
- Conditions
- Stress, Anhedonia, Healthy
- Trial name
- MIDAS (NCT01850472)
- Where
- United States
- Volunteers
- 88 people, healthy volunteers welcome
- Sponsor
- Mclean Hospital
Depression - Major Depressive Disorder, Anhedonia
Elucidating the Relevance of the Psychedelic Experience to Psilocybin's Anti-Anhedonic Effects
The goal of this clinical trial is to systematically categorize potential prohedonic effects of psilocybin in patients with anhedonia in depression. The main questions it aims to answer are: Primary Objectives 1.
- Trial name
- NCT07490353
- Testing
- Psilocybin (Usona Institute), Risperidone 1 MG, MRI
- Where
- Austria
- Volunteers
- 85 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Healthy Participants, Anxiety Disorders (With High Anxiety Symptoms)
tVNS and Approach-Avoidance Behavior in Anhedonia and Anxiety
This study investigates if anhedonia and anxiety symptoms are associated with alterations in reinforcement learning, effort trade-offs for wins vs. punishments, and foraging behavior under threat.
- Conditions
- Healthy Participants, Anxiety Disorders (With High Anxiety Symptoms), Depressive Disorders (With High Anhedonia Symptoms), Comorbid Depression and Anxiety Disorder (With High Anhedonia and High Anxiety Symptoms)
- Trial name
- NCT07476469
- Testing
- tVNS
- Where
- Germany
- Volunteers
- 104 people, healthy volunteers welcome
- Sponsor
- Dr. Nils B. Kroemer
Anhedonia
TMS Alteration of the Reward Positivity
The aim of this proposal is to demonstrate that stimulation of different brain regions differently affects the electroencephalographic feature known as the Reward Positivity (RewP).
- Trial name
- NCT05443256
- Testing
- Transcranial Magnetic Stimulation
- Where
- United States
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- University of New Mexico
Major Depressive Disorder
Neutralizing Interleukin (IL)-6
The proposed study aims to establish the feasibility and safety of subcutaneous tocilizumab, a monoclonal antibody (mAb) against interleukin (IL)-6 receptor, in adults with Major Depressive Disorder (MDD) and evidence of…
- Trial name
- NCT07493317
- Testing
- Tocilizumab
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Icahn School of Medicine at Mount Sinai
Anhedonia, Inflammation
Aging and Reward System Response to Inflammation and Anxiety Study
The purpose of this study is to use an experimental inflammatory challenge to examine whether older adults with symptoms of anxiety experience loss of pleasure or loss of motivation when they are exposed to inflammation.
- Conditions
- Anhedonia, Inflammation, Anxiety, Aging
- Trial name
- ARIA (NCT05363527)
- Testing
- Endotoxin
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of California, Los Angeles
Anhedonia
REward Processing And Citalopram Study
The goal of this experimental medicine study is to examine the effect of increasing serotonin on reward processing in healthy volunteers. The main questions it aims to answer are: 1.
- Trial name
- REPAC (NCT06017037)
- Testing
- Citalopram 20mg
- Where
- United Kingdom
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Oxford