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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05628896
Other study ID # RH-2043-KB1
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date June 1, 2020
Est. completion date January 1, 2025

Study information

Verified date March 2023
Source Rigshospitalet, Denmark
Contact Eske K. Aasvang, DMSci
Phone +45 26232076
Email eske.kvanner.aasvang.01@regionh.dk
Is FDA regulated No
Health authority
Study type Observational [Patient Registry]

Clinical Trial Summary

Efficacy of a preoperative anaemia clinic in patients undergoing elective abdominal surgery diagnosed with iron deficieny anaemia


Description:

Objective: this study aims to investigate how preoperative intravenous iron treatment affects hemoglobin elevations in patients undergoing elective abdominal surgery diagnosed with iron deficiency anaemia and when treatment should be administrated for optimal effect. Methods: the study is a prospective, descriptive cohort study, where patients are included from a quality improvement project at The Departments of Abdominal Surgery and the Department of Anesthesia, Centre for Cancer and Organ Disease at Rigshospitalet in Denmark. Patients undergoing elective abdominal surgery will be screened for iron deficiency anaemia 1-4 weeks prior to surgery and patients diagnosed with iron deficiency anaemia will be included. Intravenous iron infusion will be administrated preoperatively and Hb will be measured 1-2 days prior to surgery or on day of surgery. The preparation used is ferric derisomaltose (MonoFer, Pharmacosmos A/S, Holbæk, Denmark) with a max single iron dose of 20 mg/kg. The dose administrated is calculated using patient bodyweight and Hb value and administered ≥30 minutes followed by 30 minutes observation including monitoring with 3-lead ECG and pulsoximitri. Study results will be sought to be published in an international peer-reviewed journal.


Recruitment information / eligibility

Status Recruiting
Enrollment 400
Est. completion date January 1, 2025
Est. primary completion date January 1, 2024
Accepts healthy volunteers No
Gender All
Age group N/A and older
Eligibility Inclusion Criteria: - All patients diagnosed with preoperative iron deficiency anaemia - All patients receiving preoperative or postoperative intravenous iron infusion - Patients undergoing elective abdominal surgery Exclusion Criteria: - Patients missing Hb values after intravenous iron infusion prior to surgery - Patients undergoing acute abdominal surgery

Study Design


Related Conditions & MeSH terms


Locations

Country Name City State
Denmark The Departments of Abdominal Surgery and the Department of Anesthesia, Centre for Cancer and Organ Disease at Rigshospitalet Copenhagen

Sponsors (1)

Lead Sponsor Collaborator
Rigshospitalet, Denmark

Country where clinical trial is conducted

Denmark, 

Outcome

Type Measure Description Time frame Safety issue
Other Investigate the effect of screening elective patients undergoing abdominal surgery preoperatively to prevent preoperative iron deficiency anaemia. Number of patients with iron deficiency anaemia on day of surgery who had been screened and administrated intravenous iron infusion and who had not will be calculated and compared (number and percentages). Number of patients undergoing elective abdominal surgery from June 2020 - August 2022 with iron deficiency anaemia who had not been screened and administrated preoperative intravenous iron infusion.
Primary Assess the possible change in hemoglobin (Hb) concentration in patients with iron deficiency anaemia undergoing intravenous iron infusion of MonoFer prior to abdominal surgery. Preoperative anaemia is defined as:
Hb <8,1 mM for men
Hb <7,5 mM for women
Iron deficiency was defined as TSAT <20%. Iron deficiency anaemia was defined as TSAT <20% with concurrent anaemia.
Paired Student's t-test will be performed to analyze whether intravenous iron infusion prior to surgery results in a significant increased Hb level at the day of surgery in patients with preoperative iron deficiency anaemia. In case data is not normally distributed, data will be analyzed using Wilcoxon signed rank test.
Hb values [mM] from blood samples taken before the preliminary examination and 1-2 days prior to surgery in patients receiving intravenous iron infusion
Secondary Assess the ideal time point for administration of preoperative intravenous iron infusion of MonoFer and the effect on Hb concentration To assess if there is a significant difference in patients receiving iron infusion >2 weeks and <2 weeks preoperatively an Unpaired Students T-test will be performed. A comparison of delta Hb values (±SD) will furthermore be investigated.
To evaluate whether there is an ideal day of preoperative administration, linear regression and correlation analysis will analyze the correlation between delta Hb values and days between administrated treatment and day of surgery.
Lastly a multiple linear regression will be performed to analyze potential interaction between delta Hb and:
Age
Severity of anaemia
Preoperative chemotherapy
Hb values [mM] from blood samples taken before the preliminary examination and 1-2 days prior to surgery in patients receiving intravenous iron infusion. Number of days between infusion of intravenous MonoFer and day of surgery (up to 3 months)).
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