- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02228902
Iron Absorption Trial
Introduction: There are indications that the absorption of oral iron supplementation is reduced after a Roux- en -Y gastric bypass. Nevertheless, oral preparations are used as standard therapy for iron deficiency, even in patients who underwent a Roux- en -Y gastric bypass. Our goal is to evaluate if iron absorption is disturbed after a RYGB, which leads to a insufficient treatment of oral iron suppletion.
Methods: an iron absorption test will be performed pre- and postoperatively in 24 patients. Two groups will be created.
Preoperatively group 1 receives a daily dose of ferrous fumarate (600mg) and group 2 receives a daily dose Losferron (1390mg).
Before intake of the medicines, a fasting blood sample is taken (baseline), serum iron including ferritin, transferrin and transferrin saturation will be measured. After intake of losferron/ferrous fumarate blood samples will be taken 1, 2, 3, 4, 5 and 6 hours after intake, using a drip. An increase of 80 microgram/l is representative for a sufficient iron absorption. All patients undergo a Roux- en -Y gastric bypass.
Postoperatively; one month postoperatively the same absorption test will be repeated in the same patients.
Study Overview
Status
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Phase 4
Contacts and Locations
Study Locations
-
-
-
Arnhem, Netherlands, 6800WC
- Rijnstate Hospital
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- patients who are eligible for a primary Roux- en -Y gastric bypass and who have no pre-existing iron deficiency (serum ferritin between 20-200 micrograms/L)
Exclusion Criteria:
- blood transfusion one month before ans in the study period. The use of iron containing nutritional supplements, except our standardized multivitamin supplements. Decreased function of the kidney with a GFR of < 30ml/min and a serum creatinin below 50 micromol/L. Hb< 7.4 mmol/L in females en Hb< 8.4 mmol/L in males. Accumulation of iron. Hypersensitivity for ons of the medicinal products. Psychiatric illness. Pregnancy
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: Non-Randomized
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: ferrous fumarate
12 patients receive ferrous fumarate, 12 patients receive ferrous gluconate
|
one group receives ferrous fumarate (12 patients) and one group (12 patients) receives ferrous gluconate
|
Active Comparator: ferrous gluconate
12 patients receive ferrous fumarate and 12 patients receive ferrous gluconate
|
One group receives ferrous fumarate and one group receives ferrous fumarate.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Iron values in the blood
Time Frame: 1 month after surgery
|
Iron levels in teh blood will be measured before and 1,2,3,4,5 and 6 hours after the administration of oral iron replacement in micrograms / dl.
This will take place before surgery and one month after surgery.
The primary outcome is de difference between iron values pre- and postoperatively.
|
1 month after surgery
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
difference in absorption between ferrous fumarate and ferrous gluconate
Time Frame: 1 month after surgery
|
1 month after surgery
|
Collaborators and Investigators
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- Ironabsorption
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Bariatric Surgery
-
Unidad Internacional de Cirugia Bariatrica y MetabolicaRecruitingGERD | Bariatric Surgery Candidate | Revisional Bariatric SurgeryVenezuela
-
Universidad de ZaragozaCentro de Investigación Biomédica en Red de enfermedades hepáticas y digestivas... and other collaboratorsRecruitingBariatric Surgery | Bariatric Surgery and Whole Body Vibration TrainingSpain
-
Cairo UniversityBatterjee Medical College; Taif UniversityCompletedSurgery | Bariatric SurgeryEgypt, Saudi Arabia
-
University of Illinois at Urbana-ChampaignCarle Foundation HospitalRecruitingBariatric Surgery Candidate | Bariatric Surgical ProcedureUnited States
-
McMaster UniversityNot yet recruitingRobotic Surgery | Bariatric Surgery
-
Western Galilee Hospital-NahariyaCompletedBariatric Patients Undergoing Bariatric SurgeryIsrael
-
Unidad Internacional de Cirugia Bariatrica y MetabolicaRecruiting
-
Weizmann Institute of ScienceTel-Aviv Sourasky Medical CenterRecruiting
-
Seoul National University Bundang HospitalNot yet recruitingBariatric Surgery
-
Hvidovre University HospitalCompletedBariatric SurgeryDenmark
Clinical Trials on Ferrous fumarate
-
Swiss Federal Institute of TechnologyUniversity of Zurich; University Children's Hospital, Zurich; Jomo Kenyatta University...CompletedAnemia, Iron-deficiencyKenya
-
Swiss Federal Institute of TechnologyCompletedIron-deficiencySwitzerland
-
Swiss Federal Institute of TechnologyBurgerstein VitamineCompletedIron-deficiencySwitzerland
-
dora pereiraUniversity of Oxford; University of Cambridge; Bangor UniversityCompleted
-
Isabelle Herter-AeberliBurgerstein VitamineCompletedIron-deficiencySwitzerland
-
Thomas WalczykUnknownEffect of Iron Status on Occurrence of NTBISingapore
-
Prince of Songkla UniversityThe Thai Society of HematologyCompletedIron Deficiency AnemiaThailand
-
Isabelle Herter-AeberliBurgerstein VitamineCompletedLow Iron StoresSwitzerland
-
National Institutes of Health (NIH)Completed
-
South Australian Health and Medical Research InstituteFlinders UniversityCompletedIron-deficiency | Anemia | Microbial ColonizationAustralia