Iron Absorption Trial

NCT ID: NCT02228902

Last Updated: 2020-06-11

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

24 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-08-31

Study Completion Date

2015-05-04

Brief Summary

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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.

Detailed Description

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Conditions

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Iron Absorption Bariatric Surgery Roux- en -y Gastric Bypass

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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ferrous fumarate

12 patients receive ferrous fumarate, 12 patients receive ferrous gluconate

Group Type ACTIVE_COMPARATOR

Ferrous fumarate

Intervention Type DRUG

one group receives ferrous fumarate (12 patients) and one group (12 patients) receives ferrous gluconate

ferrous gluconate

12 patients receive ferrous fumarate and 12 patients receive ferrous gluconate

Group Type ACTIVE_COMPARATOR

Ferrous gluconate

Intervention Type DRUG

One group receives ferrous fumarate and one group receives ferrous fumarate.

Interventions

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Ferrous fumarate

one group receives ferrous fumarate (12 patients) and one group (12 patients) receives ferrous gluconate

Intervention Type DRUG

Ferrous gluconate

One group receives ferrous fumarate and one group receives ferrous fumarate.

Intervention Type DRUG

Other Intervention Names

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Losferron

Eligibility Criteria

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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
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Rijnstate Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Rijnstate hospital

Arnhem, , Netherlands

Site Status

Countries

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Netherlands

References

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Schijns W, Ligthart MAP, Berends FJ, Janssen IMC, van Laarhoven CJHM, Aarts EO, de Boer H. Changes in Iron Absorption After Roux-en-Y Gastric Bypass. Obes Surg. 2018 Jun;28(6):1738-1744. doi: 10.1007/s11695-017-3088-5.

Reference Type DERIVED
PMID: 29327182 (View on PubMed)

Other Identifiers

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Ironabsorption

Identifier Type: -

Identifier Source: org_study_id

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