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Clinical Trial Summary

This study aims to use a high-fiber supplementation, an intervention known to create shifts in the gut microbiota towards a healthier structure, to explore the relationship between gut microbiota, appetite control and feeding behavior in PWS patients.


Clinical Trial Description

This study is recruiting PWS patients aged 18-35 years who have not received growth hormone treatment in the previous 6 months. Study candidates will be recruited from Robert Wood Johnson. Participants will attend a baseline visit at the Center for Advanced Human Brain Imaging Research (CAHBIR) at Rutgers University, during which functional magnetic resonance imaging (fMRI) coupled with a meal test will be performed to assess peripheral and central feeding pathways (7, 8). fMRI scans will be performed during resting state to assess functional connectivity of feeding related networks, with a specific focus on connectivity between the hypothalamus, insula, anterior cingulate, ventromedial/orbitofrontal prefrontal cortex and amygdala (9, 10). Activation to food (vs non-food) images will be assessed to index responsivity to appetitive feeding networks including the above regions and the ventral striatum using paradigms that have previously been found to be sensitive to trait and state in multiple studies (11-13). Thereafter participants will consume a liquid meal (525 kcal; Ensure Plus, Abbott). fMRI will be repeated immediately after the meal. Participants will obtain laboratory work coupled with a meal test to assess satiety hormones and inflammatory markers. Fasting blood draw will be taken, and the participants will consume a liquid meal (525 kcal; Ensure Plus, Abbot) followed by blood draws at 30, 60, 120, 180 and 240 min post-meal. Upon completion of baseline testing and providing a fecal sample, participants will consume NBT-NM108 (a mixture of inulin, Fibersol-2, and brans of oat, wheat, corn and sorghum; Notitia Biotechnologies) daily for 4 weeks. At the completion of the 4-week intervention, all sampling and testing will be repeated as per baseline. At baseline and end of intervention, participants will be interviewed with appetite and physical activity questionnaires (Appendix C and G) and requested to complete a 24-h food recall using MyFitnessPal, a mobile health app on their phone. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05541003
Study type Interventional
Source Rutgers, The State University of New Jersey
Contact
Status Completed
Phase Phase 2
Start date January 6, 2023
Completion date May 30, 2023

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