Enhancement of Brain Circuit of Inhibitory Control in Obese Patients Undergoing Gastric Banding ("Neuroband")
"Neuroband": The Effect of Perioperative Enhancement of the Brain Circuit of Inhibitory Control in Obese Patients Undergoing Laparoscopic Adjustable Gastric Banding (LAGB)
연구 개요
상세 설명
Laparoscopic Adjustable Gastric Banding (LAGB) is a minimally invasive and reversible procedure in bariatric surgery that has a good safety record. Despite these advantages, success rates following LAGB are quite variable across individuals. Recent data suggest that complementing LAGB with interventions targeting factors along the brain-behavior spectrum could enhance weight loss results following this procedure.
The study will have the following three aims:
Aim #1: To evaluate whether enhancement of the right inferior frontal gyrus with tDCS in patients undergoing LAGB can improve inhibitory control capacity. For this aim the investigators will evaluate participants' performance in a computerized test of inhibitory control. Results from this aim will provide evidence for target engagement, and thus confirm that the brain circuit of interest was affected as a result of the intervention.
Aim #2: To examine whether enhancement of the right inferior frontal gyrus with tDCS in patients undergoing LAGB can lead to improvements in a self-reported measure of eating control (disinhibition subscale of the three-factor eating questionnaire). Results form this aim will provide evidence for an effect of the intervention on an intermediate, behavioral variable.
Aim #3: To preliminary evaluate whether enhancement of the right inferior frontal gyrus with tDCS in patients undergoing LAGB can improve postoperative weight loss outcomes. This aim will provide preliminary evidence for the clinical efficacy of the intervention over a time window period of 12 months. Weight loss at 12 months will be the primary outcome of the study.
연구 유형
등록 (실제)
단계
- 해당 없음
연락처 및 위치
연구 장소
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Massachusetts
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Boston, Massachusetts, 미국, 02215
- Beth Israel Deaconess Medical Center
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참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
설명
Inclusion Criteria:
- Age: 20-55 years old
- BMI: 35-60 kg/m2
- Planning to undergo or having undergone laparoscopic adjustable gastric banding (LAGB) within the previous week
Exclusion Criteria:
- Unstable medical conditions including poorly controlled diabetes and hypertension
- Pregnancy or planning pregnancy during study period
- Personal or family history of epilepsy or other unexplained loss of consciousness
- Current or past medical history of skin disease or damaged skin on the scalp at site of stimulation
- Active psychiatric or neurological condition
- Prior neurological procedure
- Implanted pacemaker, medication pump, vagal stimulator, deep brain stimulator, TENS unit, or ventriculoperitoneal shunt
- Intake of common medications that affect the central nervous system will be allowed if determined okay by MD
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 치료
- 할당: 무작위
- 중재 모델: 병렬 할당
- 마스킹: 삼루타
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
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활성 비교기: Active tDCS
In this arm, participants will receive active tDCS (2mA, 20 min per session).
The anode electrode will be placed over the right inferior frontal gyrus, defined as F8 (10-20 EEG system), with the cathode electrode placed over the contralateral supraorbital area, above the left eyebrow.
During each session they will also perform a computerized task designed to engage the inhibitory control circuit when confronted with food stimuli.
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tDCS is a well-established, safe and noninvasive neuromodulation technique that is based on the application of a weak direct current to the scalp that flows between two electrodes-anode and cathode. Although there is substantial shunting of current in the scalp, sufficient current penetrates the brain to modify the transmembrane neuronal potential, and thus influence the level of excitability and modulate the firing rate of individual neurons. In this study, participants will receive 10 daily sessions of tDCS (sham/real) over a period of two weeks.
다른 이름들:
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가짜 비교기: Sham tDCS
Participants will receive sham tDCS sessions with the same duration and electrode montage as in the real tDCS arm.
In this case, current will be applied for 30 s only according to standard procedures, and participants will perform a control task where they will observe and provide responses for the same food and non-food pictures as in the active group task, but without requirement of inhibitory control for performance.
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tDCS is a well-established, safe and noninvasive neuromodulation technique that is based on the application of a weak direct current to the scalp that flows between two electrodes-anode and cathode. Although there is substantial shunting of current in the scalp, sufficient current penetrates the brain to modify the transmembrane neuronal potential, and thus influence the level of excitability and modulate the firing rate of individual neurons. In this study, participants will receive 10 daily sessions of tDCS (sham/real) over a period of two weeks.
다른 이름들:
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
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Weight Change
기간: Baseline, 2 weeks after surgery, 10 days of tDCS, 1 month, 3 months, 6 months and 12 months follow up
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Participants will be weighed at the indicated time points.
Weight loss at 12 months will be the primary outcome of the study.
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Baseline, 2 weeks after surgery, 10 days of tDCS, 1 month, 3 months, 6 months and 12 months follow up
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
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Eating Disinhibition as Measured by the Three Factor Eating Questionnaire (TFEQ)
기간: Baseline and 12 months follow up
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Eating Disinhibition is an eating behavior trait that reflects a tendency towards overeating and eating opportunistically in an obesogenic environment.
Examples include eating in response to negative affect, overeating when others are eating, not being able to resist temptations to eat, and overeating in response to the palatability of food (Bryant, King and Blundell.
Obes Rev. 2008;9:409-19).
Eating disinhibition was measured using the Three Factor Eating Questionnaire (TFEQ), which contains 16 questions for this factor.
Responses are scored 0 or 1 and summed, thus eating disinhibition score ranges from 0 to 16.
Higher scores denote higher levels of eating disinhibition.
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Baseline and 12 months follow up
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Change From Baseline in Inhibitory Control Over Food as Measured by the Stop Signal Reaction Task
기간: 12 month follow-up vs. Baseline
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Inhibitory control over food was measured with a Stop Signal Task that was modified with the presence of distractors of two types: images of food and neutral images (control).
The Stop Signal Task is a computerized task that evaluates an individual's ability to interrupt a motor response after its initiation (Logan 1994).
Subjects were asked to press a response key matching the direction of an arrow, but refrain from pressing when an auditory cue ("stop signal") appeared (25% trials).
The main outcome of the task is the Stop-Signal-Reaction-Time (SSRT), in milliseconds, which reflects how long it takes to inhibit a response when a stop signal appears.
The SSRT is considered a laboratory measure of inhibitory control capacity.
Shorter SSRT reflects more efficient inhibitory control.
Here a reduction of SSRT from baseline to 12 months indicates improvement in inhibitory capacity.
We provide SSRT changes for food and neutral images, reflecting specific and general effects, respectively.
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12 month follow-up vs. Baseline
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공동 작업자 및 조사자
수사관
- 수석 연구원: Miguel Alonso-Alonso, MD, Beth Israel Deaconess Medical Center
간행물 및 유용한 링크
일반 간행물
- Jacobson L, Javitt DC, Lavidor M. Activation of inhibition: diminishing impulsive behavior by direct current stimulation over the inferior frontal gyrus. J Cogn Neurosci. 2011 Nov;23(11):3380-7. doi: 10.1162/jocn_a_00020. Epub 2011 Mar 31.
- Goldman RL, Borckardt JJ, Frohman HA, O'Neil PM, Madan A, Campbell LK, Budak A, George MS. Prefrontal cortex transcranial direct current stimulation (tDCS) temporarily reduces food cravings and increases the self-reported ability to resist food in adults with frequent food craving. Appetite. 2011 Jun;56(3):741-6. doi: 10.1016/j.appet.2011.02.013. Epub 2011 Feb 23.
- Alonso-Alonso M. Translating tDCS into the field of obesity: mechanism-driven approaches. Front Hum Neurosci. 2013 Aug 27;7:512. doi: 10.3389/fnhum.2013.00512. eCollection 2013.
- Jauch-Chara K, Kistenmacher A, Herzog N, Schwarz M, Schweiger U, Oltmanns KM. Repetitive electric brain stimulation reduces food intake in humans. Am J Clin Nutr. 2014 Oct;100(4):1003-9. doi: 10.3945/ajcn.113.075481. Epub 2014 Aug 6.
- Nitsche MA, Cohen LG, Wassermann EM, Priori A, Lang N, Antal A, Paulus W, Hummel F, Boggio PS, Fregni F, Pascual-Leone A. Transcranial direct current stimulation: State of the art 2008. Brain Stimul. 2008 Jul;1(3):206-23. doi: 10.1016/j.brs.2008.06.004. Epub 2008 Jul 1.
- Nitsche MA, Paulus W. Transcranial direct current stimulation--update 2011. Restor Neurol Neurosci. 2011;29(6):463-92. doi: 10.3233/RNN-2011-0618.
- Houben K. Overcoming the urge to splurge: influencing eating behavior by manipulating inhibitory control. J Behav Ther Exp Psychiatry. 2011 Sep;42(3):384-8. doi: 10.1016/j.jbtep.2011.02.008. Epub 2011 Feb 24.
- Batterink L, Yokum S, Stice E. Body mass correlates inversely with inhibitory control in response to food among adolescent girls: an fMRI study. Neuroimage. 2010 Oct 1;52(4):1696-703. doi: 10.1016/j.neuroimage.2010.05.059. Epub 2010 May 25.
- Chevallier JM, Paita M, Rodde-Dunet MH, Marty M, Nogues F, Slim K, Basdevant A. Predictive factors of outcome after gastric banding: a nationwide survey on the role of center activity and patients' behavior. Ann Surg. 2007 Dec;246(6):1034-9. doi: 10.1097/SLA.0b013e31813e8a56.
- Fregni F, Orsati F, Pedrosa W, Fecteau S, Tome FA, Nitsche MA, Mecca T, Macedo EC, Pascual-Leone A, Boggio PS. Transcranial direct current stimulation of the prefrontal cortex modulates the desire for specific foods. Appetite. 2008 Jul;51(1):34-41. doi: 10.1016/j.appet.2007.09.016. Epub 2007 Dec 23.
- Kekic M, McClelland J, Campbell I, Nestler S, Rubia K, David AS, Schmidt U. The effects of prefrontal cortex transcranial direct current stimulation (tDCS) on food craving and temporal discounting in women with frequent food cravings. Appetite. 2014 Jul;78:55-62. doi: 10.1016/j.appet.2014.03.010. Epub 2014 Mar 20.
- Lapenta OM, Sierve KD, de Macedo EC, Fregni F, Boggio PS. Transcranial direct current stimulation modulates ERP-indexed inhibitory control and reduces food consumption. Appetite. 2014 Dec;83:42-48. doi: 10.1016/j.appet.2014.08.005. Epub 2014 Aug 13.
- Bueter M, Thalheimer A, Lager C, Schowalter M, Illert B, Fein M. Who benefits from gastric banding? Obes Surg. 2007 Dec;17(12):1608-13. doi: 10.1007/s11695-007-9263-3. Epub 2007 Nov 21.
- Thalheimer A, Bueter M, Wierlemann A, Lager C, Jurowich C, Germer CT, Fein M. Predictability of outcome in laparoscopic gastric banding. Obes Facts. 2009;2 Suppl 1(Suppl 1):27-30. doi: 10.1159/000198246. Epub 2009 Mar 18.
- Spitznagel MB, Garcia S, Miller LA, Strain G, Devlin M, Wing R, Cohen R, Paul R, Crosby R, Mitchell JE, Gunstad J. Cognitive function predicts weight loss after bariatric surgery. Surg Obes Relat Dis. 2013 May-Jun;9(3):453-9. doi: 10.1016/j.soard.2011.10.008. Epub 2011 Oct 29.
- Bruce JM, Hancock L, Bruce A, Lepping RJ, Martin L, Lundgren JD, Malley S, Holsen LM, Savage CR. Changes in brain activation to food pictures after adjustable gastric banding. Surg Obes Relat Dis. 2012 Sep-Oct;8(5):602-8. doi: 10.1016/j.soard.2011.07.006. Epub 2011 Jul 27.
- Chambers CD, Garavan H, Bellgrove MA. Insights into the neural basis of response inhibition from cognitive and clinical neuroscience. Neurosci Biobehav Rev. 2009 May;33(5):631-46. doi: 10.1016/j.neubiorev.2008.08.016. Epub 2008 Sep 11.
- Aron AR, Poldrack RA. The cognitive neuroscience of response inhibition: relevance for genetic research in attention-deficit/hyperactivity disorder. Biol Psychiatry. 2005 Jun 1;57(11):1285-92. doi: 10.1016/j.biopsych.2004.10.026. Epub 2004 Dec 23.
- Nederkoorn C, Houben K, Hofmann W, Roefs A, Jansen A. Control yourself or just eat what you like? Weight gain over a year is predicted by an interactive effect of response inhibition and implicit preference for snack foods. Health Psychol. 2010 Jul;29(4):389-93. doi: 10.1037/a0019921.
- Nederkoorn C, Jansen E, Mulkens S, Jansen A. Impulsivity predicts treatment outcome in obese children. Behav Res Ther. 2007 May;45(5):1071-5. doi: 10.1016/j.brat.2006.05.009. Epub 2006 Jul 7.
연구 기록 날짜
연구 주요 날짜
연구 시작
기본 완료 (실제)
연구 완료 (실제)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (추정)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .
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