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Clinical Trial Summary

The purpose of this study is to determine whether 40 mg octreotide long-acting release intramuscular every 28 days is effective in the treatment of patients with refractory anemia due to gastrointestinal angiodysplasias. We hypothesize that octreotide is effective in reducing the transfusion requirements (consisting of red blood cell transfusions and intravenous iron infusions) of patients with angiodysplasia-related anemia.


Clinical Trial Description

Rationale: Gastrointestinal angiodysplasias are a common source of intractable small bowel bleeding, especially in older patients. Endoscopic ablation of angiodysplasias has limited efficacy and rebleeding rates are substantial. Recurrent bleeding results in refractory anemia which is managed with blood transfusions and/or iron infusions. Transfusion dependency reduces quality of life and is associated with substantial cardiovascular morbidity and mortality. Small cohort studies suggest a beneficial effect of octreotide in bleeding angiodysplasias, but evidence from rigorous, well-controlled studies are lacking. Objective: To assess the efficacy of octreotide in reducing the transfusion requirements (consisting of blood transfusions and iron infusions) of patients with refractory anemia due to gastrointestinal angiodysplasias despite endoscopic intervention. Study design: Multicenter, randomized, open-label intervention study. Study population: Patients aged 18 years or older with transfusion-dependent anemia due to endoscopically confirmed angiodysplasias. Transfusion units consist of iron infusions (of 500 milligrams [mg]) and red blood cell (RBC) transfusions. At least one endoscopic attempt to treat the angiodysplasias needs to be recorded unless contra-indications are present. Patients with liver cirrhosis Child-Pugh C or liver failure, uncontrolled diabetes mellitus (defined by a glycated hemoglobin >64 mmol/mL), symptomatic cholecystolithiasis, and pregnant or nursing women, are regarded as ineligible because of the pharmacological profile of octreotide. Patients with hereditary hemorrhagic diseases or hematological disorders on active treatment, other alternative causes of gastrointestinal bleeding, presence of left ventricular assist devices, as well as patients with cancer under active treatment, and those with a life expectancy <1 year are excluded from enrolment Intervention: Patients will be randomized (1:1) into two groups. The intervention group receives 40 mg octreotide long-acting release (Sandostatin LAR) every 28 days for a total period of 52 weeks as an adjunct to standard of care. The control group receives standard of care along. The last follow-up visit is in week 60. Main study parameters/endpoints: The primary endpoint is defined as the mean difference in blood (RBC transfusions per 500 ml or packed cells) and parenteral iron (IV iron infusions per 500 mg) requirements between the intervention and control group, corrected for baseline transfusion requirements and follow-up time. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02384122
Study type Interventional
Source Radboud University Medical Center
Contact
Status Completed
Phase Phase 3
Start date September 2015
Completion date May 2023

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