Inhibitory Control Training and Theta Burst Transcranial Magnetic Stimulation (iTBS) for Treating People With Excess Weight: Behavioral and Brain Changes (InhibE).

Status: Recruiting
Location: See location...
Intervention Type: Device, Behavioral
Study Type: Interventional
Study Phase: Not Applicable
SUMMARY

People with excess weight (EW) are characterized by high impulsivity, high levels of craving for high-calorie foods, deficits in inhibitory control, and maladaptive decision-making. These characteristics are related, at the brain level, to alterations in the activation of areas such as the dorsolateral prefrontal cortex (DLPFC) and its connectivity. The proposed intervention seeks to target these issues. Thus, the present study aims to characterize the effects of neuromodulation with intermittent theta burst transcranial magnetic stimulation (iTBS) of the DLPFC alone and in combination with inhibitory control training to produce brain, cognitive and behavioral changes, and modify altered biological parameters in people with EW. Participants will be randomly allocated to one of three groups: (1) a group that will receive active iTBS of the DLPFC combined with inhibitory control training with a food Go/No-go paradigm, (2) a group that will receive active iTBS of the DLPFC only, and (3) a control group that will receive sham iTBS. It is hypothesized that the combined intervention will obtain better results that the neuromodulation alone, and that both interventions, compared to sham iTBS, will achieve: (i) decreased body mass index, (ii) decreased craving, (iii) modified brain connectivity and activation both at rest and linked to task performance with food stimuli, (iv) improved anthropometric measures (waist circumference and waist-to-hip and waist-to-height ratios), (v) improved eating and exercise behaviors (decreased caloric intake and increased frequency and time of physical activity), (vi) improved emotional symptoms and emotional eating (depression, anxiety, emotional regulation, emotional eating, reward-related eating, non-homeostatic eating), (vii) improved cognitive abilities (motor and cognitive inhibition, delay of gratification, impulsivity, working memory, cognitive flexibility and decision making), (viii) changes in biological parameters associated to the interventions (plasma and microbiota), and (ix) advantages in cost-effectiveness and cost-utility based on economic evaluation analyses.

Eligibility
Participation Requirements
Sex: All
Minimum Age: 18
Maximum Age: 60
Healthy Volunteers: t
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• BMI between 25 and 39.9

• Age between 18 and 60 years

• Proficiency in the Spanish language

• Right lateral dominance to avoid differential effects due to cortical hemispheric specialization

Locations
Other Locations
Spain
Mind, Brain and Behavior Research Center at University of Granada (CIMCYCUGR)
RECRUITING
Granada
Contact Information
Primary
Raquel Vilar López, Ph.D.
rvilar@ugr.es
+34699407282
Time Frame
Start Date: 2024-11-30
Estimated Completion Date: 2026-12
Participants
Target number of participants: 141
Treatments
Experimental: Combined intervention
Experimental: Active iTBS of the DLPFC combined with inhibitory control training. An experimental group will receive: i) an informative session; ii) 4 pre treatment sessions (one assessment session with questionnaires, one with fMRI and one with biological samples. Also, a counselling session on diet and on physical exercise); iii) participate in 2 weekly individual intervention sessions that consist of iTBS of the left DLPFC (10 min) followed immediately by inhibitory control training for 10 minutes; iv) 3 sessions of post treatment assessment (one with questionnaires, one with fMRI and one with biological samples); v) 2 follow-up assessment sessions (3 months after completing the intervention) to repeat questionnaires and biological samples
Active_comparator: Active iTBS
Experimental: Active iTBS of the DLPFC only. An experimental group will receive: i) an informative session; ii) 4 pre treatment sessions (one assessment session with questionnaires, one with fMRI and one with biological samples. Also, a counselling session on diet and on physical exercise); iii) participate in 2 weekly individual intervention sessions that consist of iTBS of the left DLPFC that will last about 10 minutes each; iv) 3 sessions of post treatment assessment (one with questionnaires, one with fMRI and one with biological samples); v) 2 follow-up assessment sessions (3 months after completing the intervention) to repeat questionnaires and biological samples
Sham_comparator: Sham iTBS
Control: iTBS of the vertex (sham). The control group will receive: i) an informative session; ii) 4 pre treatment sessions (one assessment session with questionnaires, one with fMRI and one with biological samples. Also, a counselling session on diet and on physical exercise); iii) participate in 2 weekly individual intervention sessions that consist of iTBS of the vertex that will last about 10 minutes each; iv) 3 sessions of post treatment assessment (one with questionnaires, one with fMRI and one with biological samples); v) 2 follow-up assessment sessions (3 months after completing the intervention) to repeat questionnaires and biological samples
Related Therapeutic Areas
Sponsors
Leads: Raquel Vilar López
Collaborators: Government of Spain

This content was sourced from clinicaltrials.gov