Gastric BypassNCT01317147
The Effect of Gastric Bypass on the Pharmacokinetics of Serotonin Reuptake Inhibitors
An observational study of Gastric Bypass and Depression, run by University of Pittsburgh at 1 site in United States.
Trial summary
The morbidly obese frequently present with mood and anxiety disorders, which are often treated with serotonin reuptake inhibitors (SRI) antidepressant drugs. The investigators hypothesized that gastric bypass surgery would decrease the absorption of SRI. Read more about this study
- Who is it for?
- Ages 18 to 70 years
- Conditions the study is for
- Gastric Bypass, Depression, Anxiety Disorder
- What is being tested?
- Roux-en-Y gastric bypass (RYGBP)
- Type of treatment
- Surgery or procedure
- How many people
- 12 participants
- Where
- 1 siteUnited States
- Study dates
- Aug 2007to Aug 2010
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 70 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Bariatric surgery clinic- Morbidly obese patients seeking RYGB who met criteria for bariatric surgery (BMI ≥ 40 kg/m2 or ≥ 35 kg/m2 with severe obesity-related comorbidities) and were received maintenance treatment with an SRI for primary mood or anxiety disorder.
Who may be able to join
- Able to tolerate general anesthesia
- Able to document prior unsuccessful attempts at weight loss under medical supervision during the last 6 months
- Able to provide informed consent
- Cleared for surgery by primary care MD, dietician, and psychiatrist
- SRI treatment specifically for depression for ≥6 wks at constant dose for last 2 out of 6 wks
Who cannot join
- pregnancy
- Unwilling or unable to comply with postoperative requirements for diet, supplements, exercise, or followup
Trial locations and contacts
1 site in 1 country.
United States1 site
University of Pittsburgh
Pittsburgh, Pennsylvania, 15213
About this study
The morbidly obese frequently present with mood and anxiety disorders, which are often treated with serotonin reuptake inhibitors (SRI) antidepressant drugs. The investigators hypothesized that gastric bypass surgery would decrease the absorption of SRI. The investigators also wished to determine whether a reduction in SRI levels would increase the likelihood of worsening depressive symptoms.
Read the detailed description
Twelve RYGB candidates who were successfully treated with an SRI for primary mood or anxiety disorders were studied prospectively. Blood samples for SRI plasma levels were drawn immediately after dose for pharmacokinetic studies (PK) preoperatively. Maximum concentration (CMAX), time to CMAX (TMAX), and Area Under Concentration/Time curve (AUC) were determined. PK studies were repeated at one, six, and twelve months post-operatively. PK data were corrected for dose at each study time point. The Structured Interview Guide for the Hamilton Depression Rating Scale- Atypical Depression Symptom Version was used to quantify depressive symptoms.
- Conditions
- Gastric Bypass, Depression, Anxiety Disorder
- Being tested
- Roux-en-Y gastric bypass (RYGBP)
- Keywords
- pharmacokinetics, serotonin reuptake inhibitors, gastric bypass, depression, bioavailability, drug absorption, area under curve
- Medical subject headings
- Depression, Anxiety Disorders
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Roux-en-Y gastric bypass (RYGBP)Procedure or surgery
| Study group | Role | What they receive |
|---|---|---|
| Gastric bypass patients | Not described Receives: Procedure: Roux-en-Y gastric bypass (RYGBP) |
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Mar 2011 (estimated)
- Study startAug 2007
- Study completionAug 2010
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (31)Papers the sponsor has linked to this study.
- Other trials for Gastric BypassStudies of the same condition, open and under way.
- More trials run by University of PittsburghThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case only
- Time perspective
- Prospective
- Enrolment
- 12 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Pittsburgh
- Sponsor type
- University, hospital or other
- Collaborators
- American Society for Metabolic and Bariatric Surgery
- Investigators
- Giselle Hamad, MD, Principal investigator, University of Pittsburgh
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01317147
- Sponsor's protocol ID
- PRO07120162
- Status last verified
- Mar 2011
- First submitted
- 15 Mar 2011
- Last updated
- 17 Mar 2011
- Results posted
- No
- Data monitoring committee
- No
Publications
Onyike CU, Crum RM, Lee HB, Lyketsos CG, Eaton WW. Is obesity associated with major depression? Results from the Third National Health and Nutrition Examination Survey. Am J Epidemiol. 2003 Dec 15;158(12):1139-47. doi: 10.1093/aje/kwg275.
PubMed 14652298Sarwer DB, Cohn NI, Gibbons LM, Magee L, Crerand CE, Raper SE, Rosato EF, Williams NN, Wadden TA. Psychiatric diagnoses and psychiatric treatment among bariatric surgery candidates. Obes Surg. 2004 Oct;14(9):1148-56. doi: 10.1381/0960892042386922.
PubMed 15527626Alciati A, D'Ambrosio A, Foschi D, Corsi F, Mellado C, Angst J. Bipolar spectrum disorders in severely obese patients seeking surgical treatment. J Affect Disord. 2007 Aug;101(1-3):131-8. doi: 10.1016/j.jad.2006.11.008. Epub 2007 Jan 16.
PubMed 17229468Ali MR, Rasmussen JJ, Monash JB, Fuller WD. Depression is associated with increased severity of co-morbidities in bariatric surgical candidates. Surg Obes Relat Dis. 2009 Sep-Oct;5(5):559-64. doi: 10.1016/j.soard.2008.10.015. Epub 2008 Nov 21.
PubMed 19342306Serretti A, Mandelli L. Antidepressants and body weight: a comprehensive review and meta-analysis. J Clin Psychiatry. 2010 Oct;71(10):1259-72. doi: 10.4088/JCP.09r05346blu.
PubMed 21062615Malinowski SS. Nutritional and metabolic complications of bariatric surgery. Am J Med Sci. 2006 Apr;331(4):219-25. doi: 10.1097/00000441-200604000-00009.
PubMed 16617238Miller AD, Smith KM. Medication and nutrient administration considerations after bariatric surgery. Am J Health Syst Pharm. 2006 Oct 1;63(19):1852-7. doi: 10.2146/ajhp060033.
PubMed 16990631Pihlajamaki J, Gronlund S, Simonen M, Kakela P, Moilanen L, Paakkonen M, Pirinen E, Kolehmainen M, Karja V, Kainulainen S, Uusitupa M, Alhava E, Miettinen TA, Gylling H. Cholesterol absorption decreases after Roux-en-Y gastric bypass but not after gastric banding. Metabolism. 2010 Jun;59(6):866-72. doi: 10.1016/j.metabol.2009.10.004. Epub 2009 Dec 16.
PubMed 20015521Ruz M, Carrasco F, Rojas P, Codoceo J, Inostroza J, Rebolledo A, Basfi-fer K, Csendes A, Papapietro K, Pizarro F, Olivares M, Sian L, Westcott JL, Hambidge KM, Krebs NF. Iron absorption and iron status are reduced after Roux-en-Y gastric bypass. Am J Clin Nutr. 2009 Sep;90(3):527-32. doi: 10.3945/ajcn.2009.27699. Epub 2009 Jul 22.
PubMed 19625680Roerig JL, Steffen K, Zimmerman C, Mitchell JE, Crosby RD, Cao L. Preliminary comparison of sertraline levels in postbariatric surgery patients versus matched nonsurgical cohort. Surg Obes Relat Dis. 2012 Jan-Feb;8(1):62-6. doi: 10.1016/j.soard.2010.12.003. Epub 2010 Dec 15.
PubMed 21256091Skottheim IB, Stormark K, Christensen H, Jakobsen GS, Hjelmesaeth J, Jenssen T, Reubsaet JL, Sandbu R, Asberg A. Significantly altered systemic exposure to atorvastatin acid following gastric bypass surgery in morbidly obese patients. Clin Pharmacol Ther. 2009 Sep;86(3):311-8. doi: 10.1038/clpt.2009.82. Epub 2009 Jun 3.
PubMed 19494810Brolin RE. Update: NIH consensus conference. Gastrointestinal surgery for severe obesity. Nutrition. 1996 Jun;12(6):403-4. doi: 10.1016/s0899-9007(96)00154-2.
PubMed 8875533First MB, Spitzer RL, Gibbon M, Williams JBW. Structured clinical interview for DSM-IV axis I disorders-patient edition. : New York State Psychiatric Institute; 1996.
Williams JBW, Terman M. Structured Interview Guide for the Hamilton Depression Rating Scale with Ayptical Depression Supplement (SIGH-ADS). New York: New York State Psychiatric Institute; 2003.
Schauer PR, Ikramuddin S, Gourash W, Ramanathan R, Luketich J. Outcomes after laparoscopic Roux-en-Y gastric bypass for morbid obesity. Ann Surg. 2000 Oct;232(4):515-29. doi: 10.1097/00000658-200010000-00007.
PubMed 10998650
Study at a glance
From the registry record, last updated by the sponsor on 17 Mar 2011. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of Gastric Bypass on the Pharmacokinetics of Serotonin Reuptake Inhibitors
- ClinicalTrials.gov ID
- NCT01317147
- Acronym / sponsor ID
- PRO07120162
- Conditions
- Gastric Bypass, Depression, Anxiety Disorder
- Keywords
- pharmacokinetics, serotonin reuptake inhibitors, gastric bypass, depression, bioavailability, drug absorption, area under curve
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 12 participants (actual)
- Lead sponsor
- University of PittsburghUniversity, hospital or other
- Collaborators
- American Society for Metabolic and Bariatric Surgery
- Study start
- Aug 2007
- Study completion
- Aug 2010 (actual)
- First posted
- 17 Mar 2011 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The morbidly obese frequently present with mood and anxiety disorders, which are often treated with serotonin reuptake inhibitors (SRI) antidepressant drugs. The investigators hypothesized that gastric bypass surgery would decrease the absorption of SRI. The investigators also wished to determine whether a reduction in SRI levels would increase the likelihood of worsening depressive symptoms.
Detailed description
Twelve RYGB candidates who were successfully treated with an SRI for primary mood or anxiety disorders were studied prospectively. Blood samples for SRI plasma levels were drawn immediately after dose for pharmacokinetic studies (PK) preoperatively. Maximum concentration (CMAX), time to CMAX (TMAX), and Area Under Concentration/Time curve (AUC) were determined. PK studies were repeated at one, six, and twelve months post-operatively. PK data were corrected for dose at each study time point. The Structured Interview Guide for the Hamilton Depression Rating Scale- Atypical Depression Symptom Version was used to quantify depressive symptoms.
Study design
- Observational model
- Case only
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Gastric bypass patients | – | Procedure: Roux-en-Y gastric bypass (RYGBP) |
Who may qualify
- Ages
- 18 to 70 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Bariatric surgery clinic- Morbidly obese patients seeking RYGB who met criteria for bariatric surgery (BMI ≥ 40 kg/m2 or ≥ 35 kg/m2 with severe obesity-related comorbidities) and were received maintenance treatment with an SRI for primary mood or anxiety disorder.
Key inclusion criteria (5 listed)
- Able to tolerate general anesthesia
- Able to document prior unsuccessful attempts at weight loss under medical supervision during the last 6 months
- Able to provide informed consent
- Cleared for surgery by primary care MD, dietician, and psychiatrist
- SRI treatment specifically for depression for ≥6 wks at constant dose for last 2 out of 6 wks
Key exclusion criteria (2 listed)
- pregnancy
- Unwilling or unable to comply with postoperative requirements for diet, supplements, exercise, or followup
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Roux-en-Y gastric bypass (RYGBP) | Procedure or surgery | Gastric bypass patients |
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Mar 2011.
- Background: PubMed 14652298Onyike CU, Crum RM, Lee HB, Lyketsos CG, Eaton WW. Is obesity associated with major depression? Results from the Third National Health and Nutrition Examination Survey. Am J Epidemiol. 2003 Dec 15;158(12):1139-47. doi: 10.1093/aje/kwg275.
- Background: PubMed 15527626Sarwer DB, Cohn NI, Gibbons LM, Magee L, Crerand CE, Raper SE, Rosato EF, Williams NN, Wadden TA. Psychiatric diagnoses and psychiatric treatment among bariatric surgery candidates. Obes Surg. 2004 Oct;14(9):1148-56. doi: 10.1381/0960892042386922.
- Background: PubMed 17229468Alciati A, D'Ambrosio A, Foschi D, Corsi F, Mellado C, Angst J. Bipolar spectrum disorders in severely obese patients seeking surgical treatment. J Affect Disord. 2007 Aug;101(1-3):131-8. doi: 10.1016/j.jad.2006.11.008. Epub 2007 Jan 16.
- Background: PubMed 19342306Ali MR, Rasmussen JJ, Monash JB, Fuller WD. Depression is associated with increased severity of co-morbidities in bariatric surgical candidates. Surg Obes Relat Dis. 2009 Sep-Oct;5(5):559-64. doi: 10.1016/j.soard.2008.10.015. Epub 2008 Nov 21.
- Background: PubMed 21062615Serretti A, Mandelli L. Antidepressants and body weight: a comprehensive review and meta-analysis. J Clin Psychiatry. 2010 Oct;71(10):1259-72. doi: 10.4088/JCP.09r05346blu.
- Background: PubMed 16617238Malinowski SS. Nutritional and metabolic complications of bariatric surgery. Am J Med Sci. 2006 Apr;331(4):219-25. doi: 10.1097/00000441-200604000-00009.
- Background: PubMed 16990631Miller AD, Smith KM. Medication and nutrient administration considerations after bariatric surgery. Am J Health Syst Pharm. 2006 Oct 1;63(19):1852-7. doi: 10.2146/ajhp060033.
- Background: PubMed 20015521Pihlajamaki J, Gronlund S, Simonen M, Kakela P, Moilanen L, Paakkonen M, Pirinen E, Kolehmainen M, Karja V, Kainulainen S, Uusitupa M, Alhava E, Miettinen TA, Gylling H. Cholesterol absorption decreases after Roux-en-Y gastric bypass but not after gastric banding. Metabolism. 2010 Jun;59(6):866-72. doi: 10.1016/j.metabol.2009.10.004. Epub 2009 Dec 16.
- Background: PubMed 19625680Ruz M, Carrasco F, Rojas P, Codoceo J, Inostroza J, Rebolledo A, Basfi-fer K, Csendes A, Papapietro K, Pizarro F, Olivares M, Sian L, Westcott JL, Hambidge KM, Krebs NF. Iron absorption and iron status are reduced after Roux-en-Y gastric bypass. Am J Clin Nutr. 2009 Sep;90(3):527-32. doi: 10.3945/ajcn.2009.27699. Epub 2009 Jul 22.
- Background: PubMed 21256091Roerig JL, Steffen K, Zimmerman C, Mitchell JE, Crosby RD, Cao L. Preliminary comparison of sertraline levels in postbariatric surgery patients versus matched nonsurgical cohort. Surg Obes Relat Dis. 2012 Jan-Feb;8(1):62-6. doi: 10.1016/j.soard.2010.12.003. Epub 2010 Dec 15.
- Background: PubMed 19494810Skottheim IB, Stormark K, Christensen H, Jakobsen GS, Hjelmesaeth J, Jenssen T, Reubsaet JL, Sandbu R, Asberg A. Significantly altered systemic exposure to atorvastatin acid following gastric bypass surgery in morbidly obese patients. Clin Pharmacol Ther. 2009 Sep;86(3):311-8. doi: 10.1038/clpt.2009.82. Epub 2009 Jun 3.
- Background: PubMed 8875533Brolin RE. Update: NIH consensus conference. Gastrointestinal surgery for severe obesity. Nutrition. 1996 Jun;12(6):403-4. doi: 10.1016/s0899-9007(96)00154-2.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Giselle Hamad, MD principal investigator
University of Pittsburgh
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Gastric Bypass and Depression, run by University of Pittsburgh at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 17 Mar 2011. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01317147, which also lists 31 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Mar 2011.