Clinical trial
Intravenous Iron-induced Hypophosphatemia in Patients With Roux-en-Y Gastric Bypass: a Single-blind, Randomized Clinical Trial Comparing Iron Isomaltoside (Monofer®) and Ferric Carboxymaltose (Ferinject®)
Name
2022-01389
Description
The primary objective of the study is to compare the incidence of hypophosphatemia in RYGB patients treated with intravenous (IV) single dose of iron isomaltoside (Monofer®) or ferric carboxymaltose (Ferinject®).
Trial arms
Trial start
2024-05-01
Estimated PCD
2026-06-01
Trial end
2026-06-01
Status
Not yet recruiting
Phase
Early phase I
Treatment
Iron isomaltoside
single dose of 500 mg iron isomaltoside
Arms:
Patients with Roux-en-Y gastric bypass and iron deficiency 1
Iron Carboxymaltose
single dose of 500 mg ferric carboxymaltose
Arms:
Patients with Roux-en-Y gastric bypass and iron deficiency 2
Size
94
Primary endpoint
incidence of hypophosphatemia in RYGB patients treated with intravenous iron
day 14 ± 2, 21 ± 2 and 28 ± 2
Eligibility criteria
Inclusion Criteria:
* Patients over 18 years
* Signed informed consent
* Patients with previous RYGB surgery performed \> 12 months ago
* Failed response to oral iron supplementation
* Established diagnosis of iron deficiency by ferritin \< 50 ug/l or serum ferritin ≤100ug/l and low transferrin saturation (TSAT) ≤ 30%
* Normal phosphate blood level (0.8 - 1.45 mmol/l) before infusion
* Normal magnesium blood level (0.65-1.05 mmol/l)
* Outpatient
Exclusion Criteria:
* - Patients with known hypersensitivity to iron preparation and/or anaphylaxis from any cause
* Patients for whom a treatment with one of the IV iron is contra-indicated (based on product summary of product characteristics)
* Women who are pregnant or breastfeeding
* Intention to become pregnant during the course of the study
* Renal failure, chronic kidney disease stage 3b or worse (eGFR ≤ 45 ml/min/1.73m2)
* Patients who received IV iron infusion during the last 3 months before screening
* Treatment with erythropoietin or erythropoietin-stimulation agents, red blood cell transfusion within the last 3 months prior to screening
* Alcohol or drug abuse within the past 6 months
* Planned surgical procedure within the clinical trial period
* Surgery under general anaesthesia within the last 3 months prior to screening
* Hyperparathyroidism
* Kidney transplantation
* Inability to follow study procedures or give informed consent
* Use and inability to stop from V0 to study end, phosphate supplementation (except daily multivitamin preparation recommended after bariatric surgery; the exact amount of phosphate and iron supplementation in the daily multivitamin will be recorded)
* Osteoporosis drug therapy (bisphosphonates, denosumab or selective oestrogen receptor modulators).
* Patient who refuses to be informed of incidental discoveries that may contribute to the prevention, diagnosis, and treatment of existing or probable future illnesses.
Protocol
{'studyType': 'INTERVENTIONAL', 'phases': ['PHASE4'], 'designInfo': {'allocation': 'RANDOMIZED', 'interventionModel': 'PARALLEL', 'primaryPurpose': 'TREATMENT', 'maskingInfo': {'masking': 'SINGLE', 'whoMasked': ['PARTICIPANT']}}, 'enrollmentInfo': {'count': 94, 'type': 'ESTIMATED'}}
Updated at
2024-04-08
1 organization
2 products
2 indications
Organization
Lucie FavreProduct
Iron isomaltosideIndication
hypophosphatemiaIndication
Roux-en-Y Gastric BypassProduct
Iron Carboxymaltose