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Effect of mCPP on Cognitive Control, Appetite, and Neural Responses

NCT03962829 · Status: TERMINATED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 32

Last updated 2020-11-06

No results posted yet for this study

Summary

Previous studies have reported that the 5-HT2C receptor agonist meta-chlorophenylpiperazine (mCPP) decreases appetite and food intake in humans1-3. 5-HT2C receptor activation inhibits dopamine and norepinephrine release in the brain4, and has also been linked to diabetes5. The specificity of the effect of mCPP on human appetite is unclear, as previous studies also reported an increase in nausea1,3. The drug has also been reported to increase anxiety and cause panic attacks when given in a bolus dose intravenously6. Previous findings in our laboratory showed that mCPP reduced appetite, increased satiety in women and enhanced memory in the P1vital® Oxford Emotional Test Battery3. Following up on these results a food intake and fMRI study was performed, in which it was observed that mCPP decreased intake of a palatable snack (hedonic eating) and dlPFC and insula BOLD responses to food pictures. Additionally it increased memory and food value responses in brain after mCPP administration (Thomas et al submitted).

It is well established that eating behaviour is affected by metabolic signals (e.g. insulin, ghrelin, serotonin) and is also modulated via food reward processes7. More recently it has been proposed that eating is also modulated via higher cognitive processes such as inhibitory control, attention, and memory. However, in humans, eating behaviour seems to be a more complex process, which involves habits, long-term goals and social interaction. Thus, cognitive processes appear to play an important role in food consumption. In the proposed study the researchers investigate the effect of administering mCPP, on eating, and on metabolic, reward and cognitive processes and the potential interplay between these functions.

Conditions

Interventions

DRUG

mCPP

Healthy participants administrate one capsule of mCPP (30mg)

DRUG

Placebo oral tablet

Healthy participants administrate one capsule of placebo (containing lactose)

Sponsors & Collaborators

  • University Hospital Birmingham

    collaborator OTHER

  • University of Birmingham

    lead OTHER

Principal Investigators

  • Maartje Spetter, PhD · University fo Birmingham

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
TRIPLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2019-02-01
Primary Completion
2020-03-20
Completion
2020-03-20

Countries

  • United Kingdom

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03962829 on ClinicalTrials.gov