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Psychosocial Issues and Bariatric Surgery (LABS3)

Bariatric surgery is associated with long-term weight loss, as well as short-term improvements in obesity-related medical comorbidities. However, a significant proportion of patients fail to lose sufficient weight, or experience significant weight regain. Although no robust predictors of response have been identified, pilot data that will be presented and reviewed suggest that surgery has profound effects on eating behaviors and psychosocial functioning, and that these factors may affect postoperative weight control.

The present investigation capitalizes on the Longitudinal Assessment of Bariatric Surgery (LABS) consortium to conduct an in-depth examination of the psychosocial aspects of surgery among a geographically, ethnically, and racially diverse sample of men and women undergoing bariatric surgery. This project unites experts in the areas of psychopathology, eating behaviors and quality of life to conduct a naturalistic study using state-of-the-art assessment tools; to document the relationships among psychosocial factors; and to examine psychosocial predictors of surgical outcomes.

Přehled studie

Postavení

Dokončeno

Podmínky

Detailní popis

Primary Objective. Despite the obvious impact of bariatric surgery procedures on intake, no study to date has included a careful assessment of psychological factors, feeding patterns, energy intake and eating problems in this group of patients longitudinally. The Investigators believe that a careful examination of the structure of eating behavior and eating problems (e.g. vomiting) would be very helpful in guiding bariatric surgeons and dieticians who work with this group of patients in terms of dietary advice and recommendations, and with the prediction of eating problems and poor nutrient intake in the subgroup that develops such problems. This study involves prospective assessment of psychosocial outcomes of surgery by adding a supplemental battery to the LABS-2 assessment schedule. Conducting assessments at three of the LABS clinical sites assures the geographic, ethnic, and racial diversity of the sample, and hence enhances the potential to identify a subgroup or subgroups of patients susceptible to poor outcomes after surgery and the generalizability of study results.

This study would also include an evaluation of psychopathological and behavioral variables that might impact on weight loss and weight regain, and psychosocial complications post-operatively, as well as quality of life.

The overall goal of this study is to obtain detailed information that will allow a careful assessment of psychopathology, quality of life and eating behavior pre-surgically and at regular intervals for up to 7 years after the surgical intervention.

The Investigators believe that the instruments and procedures selected will allow a detailed examination of psychopathology, eating pathology and quality of life in detail.

The Investigators believe that the measures and tasks added at year 7 will allow the examination of theories of affect regulation, cognitive control, and reward processing in understanding postsurgical outcomes regarding pathological eating behavior and alcohol/substance use and their shared similarities as well as underlying neurobiological systems.

Typ studie

Pozorovací

Zápis (Aktuální)

202

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní místa

    • North Dakota
      • Fargo, North Dakota, Spojené státy, 58103
        • Neuropsychiatric Research Institute

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

18 let a starší (Dospělý, Starší dospělý)

Přijímá zdravé dobrovolníky

Ne

Pohlaví způsobilá ke studiu

Všechno

Metoda odběru vzorků

Vzorek nepravděpodobnosti

Studijní populace

Patients will be approached for inclusion into LABS1 and LABS2 at the Sanford Surgery Department, Fargo ND, at the University of Pittsburgh Medical Center and at Cornell/Columbia Medical Center in New York. LABS3 Psychosocial participants will be selected from those individuals participating in LABS1 and LABS2.

Popis

Inclusion Criteria:

  • Male and female patients who are at least 18 years of age and undergo bariatric surgery by a LABS certified surgeon.
  • Previous enrollment in LABS-1 and LABS-2.
  • BMI at baseline of greater than or equal to 35.

Exclusion Criteria:

  • Informed consent not obtained
  • Type 1 Diabetes Mellitus
  • Unlikely to comply with follow-up protocol (ie: geographically inaccessible for study visits)
  • Unable to communicate with local study staff

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Change in Psychopathology as measured by the SCID
Časové okno: annually up to 7 years post bariatric surgery
Structured Clinical Interview for DSM-IV, Patients Edition (SCID) will be administered to assess comorbid Axis I psychopathology.
annually up to 7 years post bariatric surgery

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Change in Quality of life as measured by the IWQOL
Časové okno: annually up to 7 years post bariatric surgery
Impact of Weight on Quality of Life Questionnaire: This is a 31-item, self-report, obesity-specific quality of life measure that will be utilized to assess quality of life.
annually up to 7 years post bariatric surgery
Change in Quality of life as measured by the SF-36
Časové okno: annually up to 7 years post bariatric surgery
ShortForm-36: The SF-36 is a 36-item questionnaire that assesses functioning and quality of life as it relates to health status.
annually up to 7 years post bariatric surgery
Change in Depression as measured by the BDI
Časové okno: annually up to 7 years post bariatric surgery
Beck Depression Inventory: The BDI is a 21-item instrument that is widely used to assess depressive symptoms.
annually up to 7 years post bariatric surgery
Change in Eating behaviors as measured by the EDE
Časové okno: annually up to 7 years post bariatric surgery
Eating Disorder Examination: The diagnostic version of the EDE will be used as the primary measure of eating behavior and pathology.
annually up to 7 years post bariatric surgery
Change in Impulse Control as measured by the SCID-ICD module
Časové okno: annually up to 7 years post bariatric surgery
The impulse control module of the SCID will be administered to assess impulsive/compulsive disorders for participants.
annually up to 7 years post bariatric surgery

Další výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Affect regulation as measured by the DERS
Časové okno: 7 year post bariatric surgery
Difficulties in Emotion Regulation Scale: The DERS is a 36-item self-report questionnaire that assesses six domains of emotion dysregulation and has been found to have acceptable internal consistency as well as adequate test-retest reliability and construct validity.
7 year post bariatric surgery
Affect regulation as measured by the AIM
Časové okno: 7 years post bariatric surgery
Affect Intensity Measure:The AIM is a 40-item self-report measure of positive and negative emotional intensity and reactivity.
7 years post bariatric surgery
Impulsivity
Časové okno: 7 years post bariatric surgery
UPPS-P Impulsive Behavior Scale: This is a 59-item self-report measure assessing five dimensions of impulsivity. Only the negative urgency and positive urgency subscales will be administered.
7 years post bariatric surgery
Behavioral inhibition as measured by the SPSRQ
Časové okno: 7 years post bariatric surgery
Sensitivity to Punishment and Sensitivity to Reward Questionnaire: This is a 44-item self-report measure that is based on Gray's behavioral inhibition and activation motivational systems conceptualization, and assesses sensitivity to punishment and reward.
7 years post bariatric surgery
Temperament as measured by the ATQ
Časové okno: 7 years post bariatric surgery
Effortful Control Scale of the Adult Temperament Questionnaire: This 19-item self-report measure assesses several components of dispositional effortful control, including attentional control (i.e., ability to voluntarily focus or shift attention), inhibitory control (i.e., ability to inhibit behavior), and activation control (i.e., ability to activate behavior as needed).
7 years post bariatric surgery
Cognitive Control as measured by the Go/No-Go Task
Časové okno: 7 years post bariatric surgery
Go/No-Go Task: This computerized task assesses the capacity for suppressing previously reinforced responses.
7 years post bariatric surgery
Cognitive Control as measured by the Delay Discounting Task
Časové okno: 7 years post bariatric surgery
Delay Discounting Task: Delay discounting tasks require participants to choose between receiving a larger amount of money after a delay versus receiving a smaller amount immediately.
7 years post bariatric surgery

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Sponzor

Spolupracovníci

Vyšetřovatelé

  • Vrchní vyšetřovatel: James E. Mitchell, MD, Neuropsychiatric Research Institute

Publikace a užitečné odkazy

Osoba odpovědná za zadávání informací o studiu tyto publikace poskytuje dobrovolně. Mohou se týkat čehokoli, co souvisí se studiem.

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Aktuální)

1. července 2010

Primární dokončení (Aktuální)

30. června 2019

Dokončení studie (Aktuální)

30. června 2019

Termíny zápisu do studia

První předloženo

6. července 2015

První předloženo, které splnilo kritéria kontroly kvality

8. července 2015

První zveřejněno (Odhad)

13. července 2015

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

20. srpna 2019

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

19. srpna 2019

Naposledy ověřeno

1. srpna 2019

Více informací

Termíny související s touto studií

Další identifikační čísla studie

  • 5R01DK084979-06 (Grant/smlouva NIH USA)

Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .

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