Intravenous Ferric Carboxymaltose (Ferinject®) With or Without Erythropoietin in Patients Undergoing Orthopaedic Surgery

This study has been terminated.
(Not being able to recuit sufficient patients due to a lack of complience)
Sponsor:
Collaborator:
Vifor Inc.
Information provided by (Responsible Party):
University of Zurich
ClinicalTrials.gov Identifier:
NCT00706667
First received: June 25, 2008
Last updated: June 19, 2013
Last verified: June 2013

June 25, 2008
June 19, 2013
May 2008
December 2012   (final data collection date for primary outcome measure)
Hb increase from baseline till day of surgery [ Time Frame: 6 weeks ] [ Designated as safety issue: No ]
Same as current
Complete list of historical versions of study NCT00706667 on ClinicalTrials.gov Archive Site
Not Provided
Not Provided
Not Provided
Not Provided
 
Intravenous Ferric Carboxymaltose (Ferinject®) With or Without Erythropoietin in Patients Undergoing Orthopaedic Surgery
Intravenous Ferric Carboxymaltose (Ferinject®) With or Without Erythropoietin for the Correction of Preoperative Anaemia in Patients Undergoing Orthopaedic Surgery

Study Design: Single-centre, block randomised, blinded, controlled, phase IIIb, parallel group pilot study.

Primary Objective:

• To evaluate the effect of the administration of ferric carboxymaltose (Ferinject®) with or without erythropoietin vs. no treatment (standard therapy) on the preoperative anaemia status in patients undergoing orthopaedic surgery

Secondary Objective:

  • To gain informations for the design of a possible follow-up study
  • To evaluate the effect of the administration of ferric carboxymaltose (Ferinject®) with or without erythropoietin vs. no treatment (standard therapy) on pre- and postoperative Hb levels, iron status, transfusion rate, days until discharge.
  • To evaluate the tolerability and safety of Ferinject®

Study Centres:

This is a single centre study

Patients:

A total of 75 completed patients (50 patients in the intravenous iron treatment groups and 25 patients in the no treatment group will be recruited.

TREATMENT:

Patients will be randomised 1:1:1 to one of the following groups:

Group I - Ferinject ® and EPO treatment group 25 patients will be randomised to the Ferinject and EPO treatment group.

For each patient, the cumulative total iron requirement will be calculated using the formula of Ganzoni [Ganzoni et al, 1970]:

Iron deficit [mg] = b.w. [kg]† x (target Hb - actual Hb) [g/L] x 0.24†† + depot iron [mg]

† In patients with a body mass index (BMI = weight [kg] / (height [m] x height [m])) >25, a normalised weight will be used to calculate the iron deficit. Normalised weight [kg] = 25 x height [m] x height [m].

†† Factor 0.24 = 0.0034 (iron content Hb = 0.34%) * 0.07 (blood volume = 7% of b.w.) * 1000 (conversion g to mg) Target Hb: 150 g/L Actual Hb: Value obtained at screening visit Depot iron: 500 mg

Patients will receive a first dose of 1000 mg iron as Ferinject® 21 days prior to the scheduled surgery. Patients will receive Ferinject® once weekly for up to two occasions (Day -21 and Day -14) until the calculated cumulative dose is reached for that individual. The Day -14 infusion may not be necessary, depending on the calculated total iron requirement for each patient. Patients in treatment group 1 will get additionally a single 10000 IU dose of EPO together on treatment day -14.

Group II - Ferinject ® treatment group 25 patients will be randomised to the Ferinject without EPO.

For each patient, the cumulative total iron requirement will be calculated using the formula of Ganzoni [Ganzoni et al, 1970]:

Iron deficit [mg] = b.w. [kg]† x (target Hb - actual Hb) [g/L] x 0.24†† + depot iron [mg]

† In patients with a body mass index (BMI = weight [kg] / (height [m] x height [m])) >25, a normalised weight will be used to calculate the iron deficit. Normalised weight [kg] = 25 x height [m] x height [m].

†† Factor 0.24 = 0.0034 (iron content Hb = 0.34%) * 0.07 (blood volume = 7% of b.w.) *1000 (conversion g to mg) Target Hb: 150 g/L Actual Hb: Value obtained at screening visit Depot iron: 500 mg

Patients will receive a first dose of 1000 mg iron as Ferinject 21 days prior to the scheduled surgery. Patients will receive Ferinject® once weekly for up to two occasions (Day -21 and Day -14) until the calculated cumulative dose is reached for that individual. The Day -14 infusion may not be necessary, depending on the calculated total iron requirement for each patient.

Group III - Control group 25 patients will receive the standard treatment for this patient population (no anaemia treatment).

Primary Efficacy Endpoints

• Hb increase from baseline till day of surgery

Secondary Efficacy Endpoints

  • Percentage of patients reaching an Hb of > 12 g/dl (women) or of > 13 g/dl (men) at any point in time during the study
  • Change in Hb level from baseline to highest Hb level during the study
  • Change in Ferritin value from baseline to highest ferritin value during the study
  • Change in Tsat value from baseline to highest Tsat value during the study
  • Transfusion rate
  • Infection rate
  • Days until discharge from hospital
  • Days until rehabilitation therapy

Secondary Safety Endpoints:

  • Adverse events: type, nature, incidence and outcome
  • Vital signs (temperature, blood pressure and heart rate)
  • Clinical laboratory panels (haematology/coagulation, clinical chemistry, except Hb and iron status, which are considered to be efficacy endpoints)

Laboratory parameters:

Hematology/coagulation parameters to be analysed are Hb, haematocrit (Hct), red blood cell count (RBC), white blood cell count (WBC) with differential and platelet count, mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH), mean corpuscular haemoglobin concentration (MCHC).

Clinical chemistry parameters to be analysed are alkaline phosphatase (AP), gamma-glutamyl transpeptidase (GGT), aspartate aminotransferase (AST), alanine aminotransferase (ALT), C-reactive protein (CRP), endogenous erythropoietin.

Iron status parameters include serum iron, serum ferritin, serum transferrin and TSAT.

Additional parameters - folic acid, vitamin B12 and beta-HCG will be analysed at baseline only, creatinin, soluble transferrin receptor and total bilirubin will be analysed at all visits.

Statistical Methods:

Summary statistics will be provided for safety and efficacy parameters as well as for the patients' demographic characteristics. Data will be presented per visit, if appropriate. The test for the primary endpoint is confirmative. Statistical tests of secondary endpoints will be employed for exploratory purposes to highlight interesting comparisons (e.g., baseline versus end of study) that may warrant further consideration. Unless otherwise specified, the significance level of all statistical tests will be 5% with a two-sided alternative. If appropriate, corresponding 95%-confidence intervals will be calculated. The sample size estimation is based on t-test calculation.

Continuous variables will be summarized as mean +/- SD and median with range where appropriate. Continuous variables will be compared using the Kruskal-Wallis test followed by pairwise Mann-Whitney tests with Bonferroni-correction. Nominal variables will be compared using the chi-square test or Fisher's exact test where appropriate. Changes within groups of nominal variables will be analyzed using McNemar test.

Changes within groups of continuous variables will be analyzed using the Friedman test followed by pairwise post hoc comparisons using the Wilcoxon signed rank test with Bonferroni correction. Prevalence of anaemia will be presented with exact confidence interval (CI). Continuous variables will be transformed to normal distribution, and CIs for the mean will be computed. The limits of these CIs then will be retransformed to the original units and interpreted as CIs for the median.

Interventional
Phase 4
Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Single Blind (Subject)
Primary Purpose: Treatment
Iron Deficiency Anemia
Drug: Ferinject ®
iv administration in Arm 1 placebo NaCl 0.9% In arm 2 iv administration of Ferinject ® and subcutaneous NaCl 0.9 % as an EPO placebo In arm 3 iv administration of Ferinject ® and subcutaneous EPO
  • Placebo Comparator: 1
    Placebo for EPO and for Ferinject ®
    Intervention: Drug: Ferinject ®
  • Active Comparator: 2
    Only Ferinject ® , Placebo for EPO
    Intervention: Drug: Ferinject ®
  • Active Comparator: 3
    Ferinject ® + EPO
    Intervention: Drug: Ferinject ®
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Terminated
75
December 2012
December 2012   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • > 18 years of age and signed written informed consent
  • Patients scheduled to undergo major orthopaedic surgery (hip or knee arthroplasty or back surgery)
  • 10 g/dl < Hb < 13.0 g/dl for men and 10 g/dl < Hb < 12.0 g/dl for women, at screening ( 3 weeks prior to surgery)
  • Ferritin < 100 μg/l or 100-300 with TSat < 20%

Exclusion Criteria:

  • Suspicion of iron overload (Ferritin >300 μg/l or/and TSAT>50%)
  • Active severe infection/inflammation (defined as serum CRP > 20 mg/l) or diagnosed malignancy
  • Folate-and/or Vitamin B12 deficiency (according to local lab reference range)
  • Known history of hepatitis B/C or HIV-positive
  • Liver values 3 times higher than normal
  • Immunosuppressive or myelosuppressive therapy
  • A concurrent medical condition(s) that, in the view of the investigator, would prevent compliance or participation or jeopardize the health of the patients.
  • Pregnancy or lactation
  • Transfusion within 1 month prior to study inclusion, EPO treatment with in the last 4 weeks, any iron treatment within 4 weeks prior to the inclusion in the trail
  • Participation in any other therapeutic trial within the previous month
  • History of thromboembolic events in the family or the patient
  • Severe peripheral, coronary or carotid artery disease
  • Bodyweight < 50 kg
  • Patients not able to understand the German language
Both
18 Years and older
No
Contact information is only displayed when the study is recruiting subjects
Switzerland
 
NCT00706667
StV 07-2008
No
University of Zurich
University of Zurich
Vifor Inc.
Principal Investigator: Oliver Theusinger, MD University Hospital Zurich, Division of Anaesthesiology
University of Zurich
June 2013

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP