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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02392910
Other study ID # 5427-06/07
Secondary ID
Status Completed
Phase Phase 4
First received March 15, 2015
Last updated March 18, 2015
Start date March 2006
Est. completion date February 2012

Study information

Verified date March 2015
Source Hospital Aleman
Contact n/a
Is FDA regulated No
Health authority Argentina: Ministry of Health
Study type Interventional

Clinical Trial Summary

Iron deficiency, independent of anemia, appears to increase morbidity and mortality as well as impairing health-related quality of life in chronic heart failure (CHF), and these effects are compounded when patients also experience chronic kidney disease (CKD). This study was designed to determine the effects of intravenous iron treatment on morbidity and mortality following an initial 6-month period and a longer period of up to 5 years.


Description:

Effect of i.v. iron sucrose on iron parameters and anemia

- During the original 6 month trial, patients in the i.v. iron group received 1000mg iron per the protocol. No patients required iron in the subsequent 6 months.

- During the subsequent follow-up, patients required a mean of between 165 and 274 mg iron per year (range: 0 to 600 mg per patient per year).

- Post the initial 1000mg iron, 19 out of 20 patients required at least a second dose of i.v. iron. Most patients required only one or two doses per year.

- The average time to requiring a second iron administration was 14.5 ± 2.7 months (range: 14 months, 23 months).

- Correction of iron deficiency (ID) resulted in statistically significant increases in transferrin saturation (TSAT) throughout the study (p < 0.01 untreated group). At all measured points, TSAT values in the treated group were at least on target (> 20% increase).

- For serum ferritin, significant differences were observed at 6 months and 1 year however this difference was not observed at 5 years post baseline where serum ferritin values were 173ng/mL and 167ng/mL for the control and IV iron groups, respectively.

- Statistically significant improvements versus the untreated group were observed for both hemoglobin (Hb) and creatinine clearance (CrCl) as well as for left ventricular ejection fraction (LVEF) and New York Heart Association (NYHA) functional class at each year.

Effect of i.v. iron sucrose on hospitalizations and mortality

- There were numerically fewer hospitalization reported at 6 months compared to those among untreated patients (0% and 25%, respectively), although the difference versus untreated patients was not statistically significant (p=ns).

- At 1 year after commencing the original study, the number of patients requiring a hospitalization (for any reason) was 50% in the control group and 10% in the IV iron group (p<0.01).

- By 5 years follow-up these rates had increased to 85% in the control arm and 20% in the IV iron treated group (p<0.01).

- In relation to all-cause mortality, there were no deaths in either group after the first 6 months. The number of deaths due to any cause after year 1 had increased in both groups (20% in the untreated group, 5% in the treated group; p=ns).

- At 5 years follow-up, 11 (55%) of patients in the control arm were deceased, compared with 4 (20%) in the IV iron treated group (p < 0.05).


Recruitment information / eligibility

Status Completed
Enrollment 40
Est. completion date February 2012
Est. primary completion date February 2012
Accepts healthy volunteers No
Gender Both
Age group 18 Years and older
Eligibility Inclusion:

- LV ejection fraction (EF) = 35%

- New York Heart Association (NYHA) functional class II to IV

- Anemia with an iron deficit defined by Hb 12.5 g/dl for men and 11.5 g/dl for women, and some of the following: serum ferritin 100 ng/ml and/or with transferrin saturation (TSAT) 20%

- Creatinine clearance 90 ml/min.

Exclusion:

- Hemodialysis therapy

- Anemia not due to iron deficiency

- NYHA functional class I

- History of allergy to the iron supplements

- Acute bacterial infections, parasitism known in the 4 previous weeks

- Neoplasm

- Chronic digestive diseases

- Hypothyroidism

- Congenital cardiopathies

- Receiving iron supplements in the 4 previous weeks

- Receiving rhEPO in the 4 previous weeks

- History of hospitalization during the 4 weeks before enrollment into the study.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment


Intervention

Drug:
Iron Sucrose
At each visit, the patient lay on a stretcher and underwent a vein cannulation in the forearm with a commercial canula no. 16, which was connected to IV tubing that was connected to a bag contained 200 ml isotonic saline solution 0.9% plus 200 mg of Iron Sucrose. Each infusion was administered throughout 60 min. This scheme was followed for 5 consecutive weeks.
Placebo
At each visit, the patient lay on a stretcher and underwent a vein cannulation in the forearm with a commercial canula no. 16, which was connected to IV tubing that was connected to a bag of isotonic saline solution 0.9% (200 ml). Each infusion was administered throughout 60 min. This scheme was followed for 5 consecutive weeks.

Locations

Country Name City State
Argentina Hospital Aleman Buenos Aires Caba

Sponsors (1)

Lead Sponsor Collaborator
Hospital Aleman

Country where clinical trial is conducted

Argentina, 

References & Publications (1)

Toblli JE, Lombraña A, Duarte P, Di Gennaro F. Intravenous iron reduces NT-pro-brain natriuretic peptide in anemic patients with chronic heart failure and renal insufficiency. J Am Coll Cardiol. 2007 Oct 23;50(17):1657-65. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary mortality 5 years Yes
Secondary Hospitalization 5 years Yes
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