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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT04077502
Other study ID # CharlesUniversityPragueCR
Secondary ID
Status Active, not recruiting
Phase N/A
First received
Last updated
Start date January 23, 2014
Est. completion date December 31, 2019

Study information

Verified date September 2019
Source Charles University, Czech Republic
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Hypothesis: High-frequency rTMS can significantly reduce craving for food in patients with BED just after the stimulation and also over the one month observation period.

Method: The study was designed as a randomized double blind and placebo controlled one. The active group was stimulated by high-frequency rTMS, with the following stimulation parameters: frequency 10 Hz, 1500 pulses, 107 s inter-train, 100% minimal motor threshold and 10 stimulation session. The control group was stimulated by a sham rTMS coil. The FCQ-S and the FCQ-T questionnaires were used to evaluate the food craving.


Description:

The study was realized at Department of Psychiatry First Faculty of Medicine Charles University in Prague and General University Hospital in Prague during 2013 - 2018. The study was approved by the Ethics committee General University Hospital in Prague by a decision dated 23.1.2014, number 1867/13 S-IV (individual research). The study was registered on clinicaltrials.gov.

Two psychiatrists examined each patient who signed up for the study, in order to set the diagnoses. The DSM-5 diagnostic criteria were used for the purpose of the study. The exclusion criteria were mainly based upon contraindications for rTMS such as: a history of epileptic seizure paroxysms, increased intracranial pressure, brain tumor, implanted metal devices in the cranium (except the oral cavity), and any implanted peacemaker or drug pump. Also, patients who were not able to complete 10 sessions of rTMS were excluded for non-compliance. Inclusion criteria were: having BED and being over the age of 18. The study did not account for the hemispherical laterality.

After signing an informed consent form, subjects were included into the study and randomly divided into two groups: one group stimulated by a real rTMS coil (group A - active), and the second (control group), stimulated by a sham rTMS coil (group P - placebo).

Patients were also offered to participate in cognitive behavioral group therapy (CBT) simultaneously with the rTMS treatment. However, the attendance in the CBT was voluntary, and it was not a condition for inclusion into the study.

The study was conceived as randomized double blind placebo controlled clinical study. The randomization was performed by statistics independent of study. The investigators group achieved the study´s double blind characteristics by dividing the roles of the researchers. One author provided the examinations of the patients, CBT, data collection and evaluations of the questionnaires, while a second author administered the stimulations. The control group was "blind" thanks to the use of the sham coil.

Collection of data and statistical analysis Subjects were asked to fill out the set of questionnaires consisting of the EDE-Q (Eating Disorder Examination - Questionnaire), as well as the FCQ-S, and the FCQ-T before the first stimulation session. The EDE-Q served to collect demographfic data, and to evaluate the severity of the disorder. On the day of the last stimulation, and one month after the last stimulation, subjects filled out the FCQ-S and the FCQ-T again.

Statistical package R, version 3.4.2 was used for the statistical processing of the data. The two-sample t-test method was used to compare the differences in cravings between subjects stimulated by the real and sham coils in all situations: before stimulation, directly after the last stimulation, and one month after the last stimulation. The paired t-test method was used to evaluate the changes of craving over time, meaning the difference in craving before the stimulation and on the last day of stimulation, and difference in craving on the last day of stimulation and one month after the last stimulation.

Parameters of stimulation A MAGSTIM Super Rapid 2 device with eight flat shaped coil was used to provide the rTMS. The control group was stimulated by a sham coil with similar side effects regarding sound and a pain perception on the scalp. The left DLPFC was chosen as the stimulation target. The coil placement for the DLPFC stimulation was 5 cm anterior in the same parasagital line from the place of maximum musculus abductor pollicis brevis response. The stimulation site was outlined on a cap, which was repositioned during each rTMS session.

The number of sessions was set on 10. Each stimulation session consisted of 15 trains of 10 s and 107 s intertrain, at a frequency of 10 Hz. That meant 1500 pulses applied during one session taking cca 20 minutes. The intensity of stimulation was 100% of minimal motor threshold (MMT). MMT was identified as the minimum magnetic field strength required to produce a motoric response of right thenar muscle, which was determined by visual control and controlled by EMG measurement. Stimulations were realized throughout a two week period, excepting weekends.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 12
Est. completion date December 31, 2019
Est. primary completion date August 2018
Accepts healthy volunteers No
Gender Female
Age group 18 Years and older
Eligibility Inclusion Criteria:

- having binge eating disorder

- being over the age of 18

Exclusion Criteria:

- contraindications for rTMS such as: a history of epileptic seizur paroxysms, increased intracranial pressure, brain tumor, implanted metal devices in the cranium (except the oral cavity), and any implanted peacemaker or drug pump

- non-compliance - inability to complet 10 sessions of stimulation

Study Design


Intervention

Device:
Repetitive Transcranial Magnetic Stimulation
Repetitive Transcranial Magnetic Stimulation

Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Charles University, Czech Republic

References & Publications (10)

Baczynski TP, de Aquino Chaim CH, Nazar BP, Carta MG, Arias-Carrion O, Silva AC, Machado S, Nardi AE. High-frequency rTMS to treat refractory binge eating disorder and comorbid depression: a case report. CNS Neurol Disord Drug Targets. 2014;13(5):771-5. — View Citation

Cepeda-Benito A, Gleaves DH, Fernández MC, Vila J, Williams TL, Reynoso J. The development and validation of Spanish versions of the State and Trait Food Cravings Questionnaires. Behav Res Ther. 2000 Nov;38(11):1125-38. — View Citation

Downar J, Sankar A, Giacobbe P, Woodside B, Colton P. Unanticipated Rapid Remission of Refractory Bulimia Nervosa, during High-Dose Repetitive Transcranial Magnetic Stimulation of the Dorsomedial Prefrontal Cortex: A Case Report. Front Psychiatry. 2012 Apr 20;3:30. doi: 10.3389/fpsyt.2012.00030. eCollection 2012. — View Citation

Gay A, Jaussent I, Sigaud T, Billard S, Attal J, Seneque M, Galusca B, Van Den Eynde F, Massoubre C, Courtet P, Guillaume S. A Lack of Clinical Effect of High-frequency rTMS to Dorsolateral Prefrontal Cortex on Bulimic Symptoms: A Randomised, Double-blind Trial. Eur Eat Disord Rev. 2016 Nov;24(6):474-481. doi: 10.1002/erv.2475. Epub 2016 Sep 15. — View Citation

Jaššová K, Albrecht J, Papežová H, Anders M. Repetitive Transcranial Magnetic Stimulation (rTMS) Treatment of Depression and Anxiety in a Patient with Anorexia Nervosa. Med Sci Monit. 2018 Jul 30;24:5279-5281. doi: 10.12659/MSM.908250. — View Citation

McClelland J, Bozhilova N, Nestler S, Campbell IC, Jacob S, Johnson-Sabine E, Schmidt U. Improvements in symptoms following neuronavigated repetitive transcranial magnetic stimulation (rTMS) in severe and enduring anorexia nervosa: findings from two case studies. Eur Eat Disord Rev. 2013 Nov;21(6):500-6. doi: 10.1002/erv.2266. — View Citation

McClelland J, Kekic M, Bozhilova N, Nestler S, Dew T, Van den Eynde F, David AS, Rubia K, Campbell IC, Schmidt U. A Randomised Controlled Trial of Neuronavigated Repetitive Transcranial Magnetic Stimulation (rTMS) in Anorexia Nervosa. PLoS One. 2016 Mar 23;11(3):e0148606. doi: 10.1371/journal.pone.0148606. eCollection 2016. — View Citation

Nijs IM, Franken IH, Muris P. The modified Trait and State Food-Cravings Questionnaires: development and validation of a general index of food craving. Appetite. 2007 Jul;49(1):38-46. Epub 2006 Dec 21. — View Citation

Uher R, Yoganathan D, Mogg A, Eranti SV, Treasure J, Campbell IC, McLoughlin DM, Schmidt U. Effect of left prefrontal repetitive transcranial magnetic stimulation on food craving. Biol Psychiatry. 2005 Nov 15;58(10):840-2. Epub 2005 Aug 8. — View Citation

Van den Eynde F, Claudino AM, Mogg A, Horrell L, Stahl D, Ribeiro W, Uher R, Campbell I, Schmidt U. Repetitive transcranial magnetic stimulation reduces cue-induced food craving in bulimic disorders. Biol Psychiatry. 2010 Apr 15;67(8):793-5. doi: 10.1016/j.biopsych.2009.11.023. Epub 2010 Jan 8. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary The degree of craving For evaluation of craving the Food Craving Questionnaire-State (FCQ-S) was used. The degree of craving was rated from "never" (0 points), through "rarely", "sometimes", "often", "usually", to "always" (5 points). The FCQ-State (FCQ-S) consisted of 15 questions, which are focused on the craving being dependent on the actual psychological conditions of the subject. The degree of craving can range from 0 to 65 points. one month
Primary The degree of craving For evaluation of craving the Food Craving Questionnaire-Trait (FCQ-t) was used. The degree of craving was rated from "never" (0 points), through "rarely", "sometimes", "often", "usually", to "always" (5 points). The FCQ-Trait (FCQ-T) consisted of 39 questions focused on the craving as a stable property over time. The degree of craving can range from 0 to 195 points. one month
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