Clinical trial NCT00465829: Long-term Effects of Bariatric Surgery
Official title: Longitudinal Assessment of Bariatric Surgery (LABS-2)
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Obesity
Keywords: Obesity
Lead sponsor: University of Pittsburgh
Sponsor class: OTHER
Collaborators: name: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
First posted: 2007-04-25
Enrollment: 2458
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: All bariatric surgical candidates at participating LABS centers who are 18 years or older and have not had prior bariatric surgery.

Brief summary: The primary objective of LABS-2 is to use standardized techniques and measures to assess the longer-term safety and efficacy of bariatric surgery by:

1. comparing post-surgical outcomes to pre-operative status
2. examining risks and benefits of surgery.

LABS-2 will determine the associations between clinical/demographic patient characteristics, components of the surgical procedure, and peri-operative and post-operative care with post-operative risks and changes in patient status.

Funds are not available to pay for the surgery for patients, only to address research questions.

Detailed description: The primary goal of LABS-2 is to evaluate the efficacy and safety of bariatric surgery over a longer term than LABS-1, i.e., more than 30 days. Using a sample of the LABS-1 cohort, approximately 2,400 patients, will be recruited over 3 years. LABS-2 will include clinical assessments and detailed interviews and questionnaires pre-operatively and at several post-operative time points (30 days, 6 months, 12 months following surgery, and annually thereafter) to assess risks of surgery, and changes in clinical, metabolic, and psychosocial characteristics in patients, and health care utilization following bariatric surgery. Detailed data about the surgical procedure and peri- and post-operative care will also be collected to determine if components of the surgical procedure, and peri-operative and post-operative care as well as clinical/demographic patient characteristics are associated with post-operative risks and changes in patient status. Patients enrolled in LABS-2 will provide blood specimens pre-operatively and post-operatively to address LABS-2 hypotheses and additional samples will be stored at the NIDDK tissue repository for serologic, pathologic and genomic testing of other hypotheses.

Eligibility criteria: Inclusion Criteria:

* Patients who are at least 18 years of age and undergo bariatric surgery by a LABS certified surgeon
* Previous enrollment in LABS-1
* Selected by algorithm to be included in LABS-2

Exclusion Criteria:

* Informed consent not obtained
* Prior bariatric surgery
* Unlikely to comply with follow-up protocol
* Unable to communicate with local study staff

Primary outcomes:
Secondary outcomes:
Other outcomes:
Locations:
city: New York
country: United States
facility: Cornell University Medical Center
state: New York
city: New York
country: United States
facility: Columbia University Medical Center
state: New York
city: Greenville
country: United States
facility: East Carolina University
state: North Carolina
city: Fargo
country: United States
facility: Neuropsychiatric Research Institute
state: North Dakota
city: Portland
country: United States
facility: Legacy Good Samaritan Hospital
state: Oregon
city: Portland
country: United States
facility: Oregon Health and Science University
state: Oregon
city: Pittsburgh
country: United States
facility: University of Pittsburgh Medical Center
state: Pennsylvania
city: Seattle
country: United States
facility: University of Washington
state: Washington
city: Seattle
country: United States
facility: Virginia Mason Medical Center
state: Washington
Study officials:
affiliation: Columbia University
name: Paul D Berk, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: University of Pittsburgh Medical Center
name: Anita Courcoulas, MD,MPH,FACS
role: PRINCIPAL_INVESTIGATOR
affiliation: University of Washington
name: David R Flum, MD,MPH,FACS
role: PRINCIPAL_INVESTIGATOR
affiliation: Neuropsychiatric Research Institute
name: James E Mitchell, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Oregon Health and Science University
name: Bruce M Wolfe, MD,FACS
role: PRINCIPAL_INVESTIGATOR
affiliation: East Carolina Medical Center
name: Walter J Pories, MD,FACS
role: PRINCIPAL_INVESTIGATOR
References:
citation: Purnell JQ, Dewey EN, Laferrere B, Selzer F, Flum DR, Mitchell JE, Pomp A, Pories WJ, Inge T, Courcoulas A, Wolfe BM. Diabetes Remission Status During Seven-year Follow-up of the Longitudinal Assessment of Bariatric Surgery Study. J Clin Endocrinol Metab. 2021 Mar 8;106(3):774-788. doi: 10.1210/clinem/dgaa849.
citation: Smith KE, Mason TB, Cao L, Crosby RD, Steffen KJ, Garcia L, King WC, Mitchell JE. Trajectories of depressive symptoms and relationships with weight loss in the seven years after bariatric surgery. Obes Res Clin Pract. 2020 Sep-Oct;14(5):456-461. doi: 10.1016/j.orcp.2020.08.007. Epub 2020 Sep 12.
citation: Bjornstad P, Nehus E, Jenkins T, Mitsnefes M, Moxey-Mims M, Dixon JB, Inge TH. Five-year kidney outcomes of bariatric surgery differ in severely obese adolescents and adults with and without type 2 diabetes. Kidney Int. 2020 May;97(5):995-1005. doi: 10.1016/j.kint.2020.01.016. Epub 2020 Feb 3.
citation: Dewberry LC, Jalivand A, Gupta R, Jenkins TM, Beamish A, Inge TH, Courcoulas A, Helmrath M, Brandt ML, Harmon CM, Chen M, Dixon JB, Zeller M, Michalsky MP. Weight Loss and Health Status 5 Years After Adjustable Gastric Banding in Adolescents. Obes Surg. 2020 Jun;30(6):2388-2394. doi: 10.1007/s11695-020-04504-5.
citation: Heshka S, Lemos T, Astbury NM, Widen E, Davidson L, Goodpaster BH, DeLany JP, Strain GW, Pomp A, Courcoulas AP, Lin S, Janumala I, Yu W, Kang P, Thornton JC, Gallagher D. Resting Energy Expenditure and Organ-Tissue Body Composition 5 Years After Bariatric Surgery. Obes Surg. 2020 Feb;30(2):587-594. doi: 10.1007/s11695-019-04217-4.
citation: Steffen KJ, King WC, White GE, Subak LL, Mitchell JE, Courcoulas AP, Flum DR, Strain G, Sarwer DB, Kolotkin RL, Pories W, Huang AJ. Changes in Sexual Functioning in Women and Men in the 5 Years After Bariatric Surgery. JAMA Surg. 2019 Jun 1;154(6):487-498. doi: 10.1001/jamasurg.2018.1162.
citation: Davidson LE, Yu W, Goodpaster BH, DeLany JP, Widen E, Lemos T, Strain GW, Pomp A, Courcoulas AP, Lin S, Janumala I, Thornton JC, Gallagher D. Fat-Free Mass and Skeletal Muscle Mass Five Years After Bariatric Surgery. Obesity (Silver Spring). 2018 Jul;26(7):1130-1136. doi: 10.1002/oby.22190. Epub 2018 May 30.
citation: Courcoulas AP, King WC, Belle SH, Berk P, Flum DR, Garcia L, Gourash W, Horlick M, Mitchell JE, Pomp A, Pories WJ, Purnell JQ, Singh A, Spaniolas K, Thirlby R, Wolfe BM, Yanovski SZ. Seven-Year Weight Trajectories and Health Outcomes in the Longitudinal Assessment of Bariatric Surgery (LABS) Study. JAMA Surg. 2018 May 1;153(5):427-434. doi: 10.1001/jamasurg.2017.5025.
citation: Menke MN, King WC, White GE, Gosman GG, Courcoulas AP, Dakin GF, Flum DR, Orcutt MJ, Pomp A, Pories WJ, Purnell JQ, Steffen KJ, Wolfe BM, Yanovski SZ. Contraception and Conception After Bariatric Surgery. Obstet Gynecol. 2017 Nov;130(5):979-987. doi: 10.1097/AOG.0000000000002323.
citation: King WC, Chen JY, Belle SH, Courcoulas AP, Dakin GF, Elder KA, Flum DR, Hinojosa MW, Mitchell JE, Pories WJ, Wolfe BM, Yanovski SZ. Change in Pain and Physical Function Following Bariatric Surgery for Severe Obesity. JAMA. 2016 Apr 5;315(13):1362-71. doi: 10.1001/jama.2016.3010.
citation: Courcoulas AP, Christian NJ, O'Rourke RW, Dakin G, Patchen Dellinger E, Flum DR, Melissa Kalarchian PD, Mitchell JE, Patterson E, Pomp A, Pories WJ, Spaniolas K, Steffen K, Wolfe BM, Belle SH. Preoperative factors and 3-year weight change in the Longitudinal Assessment of Bariatric Surgery (LABS) consortium. Surg Obes Relat Dis. 2015 Sep-Oct;11(5):1109-18. doi: 10.1016/j.soard.2015.01.011. Epub 2015 Jan 23.
citation: Mitchell JE, King WC, Chen JY, Devlin MJ, Flum D, Garcia L, Inabet W, Pender JR, Kalarchian MA, Khandelwal S, Marcus MD, Schrope B, Strain G, Wolfe B, Yanovski S. Course of depressive symptoms and treatment in the longitudinal assessment of bariatric surgery (LABS-2) study. Obesity (Silver Spring). 2014 Aug;22(8):1799-806. doi: 10.1002/oby.20738. Epub 2014 Mar 25.
citation: Courcoulas AP, Christian NJ, Belle SH, Berk PD, Flum DR, Garcia L, Horlick M, Kalarchian MA, King WC, Mitchell JE, Patterson EJ, Pender JR, Pomp A, Pories WJ, Thirlby RC, Yanovski SZ, Wolfe BM; Longitudinal Assessment of Bariatric Surgery (LABS) Consortium. Weight change and health outcomes at 3 years after bariatric surgery among individuals with severe obesity. JAMA. 2013 Dec 11;310(22):2416-25. doi: 10.1001/jama.2013.280928.
citation: Mackey RH, Belle SH, Courcoulas AP, Dakin GF, Deveney CW, Flum DR, Garcia L, King WC, Kuller LH, Mitchell JE, Pomp A, Pories WJ, Wolfe BM; Longitudinal Assessment of Bariatric Surgery Consortium Writing Group. Distribution of 10-year and lifetime predicted risk for cardiovascular disease prior to surgery in the longitudinal assessment of bariatric surgery-2 study. Am J Cardiol. 2012 Oct 15;110(8):1130-7. doi: 10.1016/j.amjcard.2012.05.054. Epub 2012 Jun 27.