Ferric Carboxymaltose in Type 2 Diabetes Mellitus (T2DM) Patients With Iron Deficiency (CLEVER)
Primary Purpose
Type 2 Diabetes Mellitus, Iron Deficiency
Status
Completed
Phase
Phase 3
Locations
Germany
Study Type
Interventional
Intervention
ferric carboxymaltose
NaCl (0,9%)
Sponsored by
About this trial
This is an interventional treatment trial for Type 2 Diabetes Mellitus focused on measuring Diabetes, iron deficiency
Eligibility Criteria
T2DM patients with diagnosis of ID defined as follows:
- serum ferritin <150 ng/mL or TSAT <25% if Hb < 14 g/dL serum ferritin <100 ng/mL or TSAT <20% if Hb ≥ 14 g/dL and ≤ 15g/dL]
- HbA1c: ≥ 6.5 to < 8.5 %
- Age > 18 years
- Written informed consent has been obtained.
Exclusion Criteria:
- Continuous subcutaneous insulin infusion (CSII)
- thalassaemia
- Hb > 15 g/dL (> 9,31 mmol/L)
- Change of HbA1c of more than ±0,3 % within the last 3 months.
- known sensitivity to ferric carboxymaltose
- history of acquired iron overload
- History of erythropoietin stimulating agent, i.v. iron therapy, and/or blood transfusion in previous 12 weeks prior to randomisation
- History of oral iron therapy at doses ≥ 100 mg/day 1 week prior to randomisation. Note: Ongoing oral use of multivitamins containing iron < 75 mg/day is permitted.
- Body weight ≤ 40 kg
- CRP > 15 mg/L
- Chronic liver disease (including known active hepatitis) and/or screening alanine transaminase (ALAT) or aspartate transaminase (ASAT) > 3 x ULN (upper limit of the normal range).
- Subjects with known hepatitis B surface antigen positivity and/or Hepatitis C virus ribonucleic acid positivity.
- Vitamin B12 and/or serum folate deficiency. If deficiency corrected subject may be rescreened for inclusion.
- Subjects with known seropositivity to human immunodeficiency virus.
- Clinical evidence of current malignancy with exception of basal cell or squamous cell carcinoma of the skin, and cervical intraepithelial neoplasia.
- Currently receiving systemic chemotherapy and/or radiotherapy.
- Renal dialysis (previous, current or planned within the next 6 months).
- Renal function GFR < 30 mL/min/ 1.73m2 (severe)
- Unstable angina pectoris as judged by the Investigator; severe valvular or left ventricular outflow obstruction disease needing intervention; atrial fibrillation/flutter with a mean ventricular response rate at rest >100 beats per minute.
- Acute myocardial infarction or acute coronary syndrome, transient ischaemic attack or stroke within the last 3 months prior to randomisation.
- Coronary-artery bypass graft, percutaneous intervention (e.g., cardiac, cerebrovascular, aortic; diagnostic catheters are allowed) or major surgery, including thoracic and cardiac surgery, within the last 3 months prior to randomisation.
- Patients with a polyneuropathy without ischemia.
- Subject of child-bearing potential who is pregnant (e.g., positive human chorionic gonadotropin test) or is breast feeding.
- Any subject not willing to use adequate contraceptive precautions during the study and for up to 5 days after the last scheduled dose of study medication.
- Participation in other interventional trials
- Female subject of child-bearing potential who is pregnant (e.g., positive human chorionic gonadotropin test) or is breast feeding.
- Failure to use highly-effective contraceptive methods
- Persons with any kind of dependency on the investigator or employed by the sponsor or investigator
Sites / Locations
- Gemeinschaftspraxis Dres. Grüneberg, Mehring, Stude
- Univesitätsklinikum Carl Gustav Carus
- Herz- und Diabeteszentrum NRW Ruhr-Universität Bochum
- Studienzentrum Professor Hanefeld Abakus Büropark
- Medizinische Hochschule Hannover Klinisches Forschungszentrum CRC
- Diabetesinstitut Heidelberg
Arms of the Study
Arm 1
Arm 2
Arm Type
Experimental
Placebo Comparator
Arm Label
ferric carboxymaltose
NaCl (0,9%)
Arm Description
Dose: according to SmPC; Duration: 12 weeks; Frequency: at week 1 and again at week 5 (if again indicated according to principal inclusion criteria); Application: intravenous
Duration: 12 weeks; Frequency: at week 1 and again at week 5 (if again indicated according to principal inclusion criteria); Application: intravenous
Outcomes
Primary Outcome Measures
reduction in HBA1c-levels
reduction of HbA1c from week 1 (baseline) to week 13
Secondary Outcome Measures
improvement of haematological and iron status
Hb, MCV, MCH, hypochromic cells, reticulocyte Hb content, ferritin, transferrin, transferrin saturation (TSAT), sTFR, iron, hepcidin
improvement in quality of life
potential clinical improvement and improvement in quality of life (EQ5D) of patients with ID T2DM
Improvement of metabolic status
measurement of fasting glucose, fructosamine
reliability of HbA1c-measurements
measurement of HbA1c in week 0; 5 and 13
improvement in vascular function
Improvement in vascular function on the basis of the biomarker ADMA serum level
Change in used insulin dosage during study
Change in used insulin dosage during study (via patient diary)
Full Information
NCT ID
NCT01513369
First Posted
January 3, 2012
Last Updated
February 3, 2021
Sponsor
GWT-TUD GmbH
Collaborators
Vifor Pharma
1. Study Identification
Unique Protocol Identification Number
NCT01513369
Brief Title
Ferric Carboxymaltose in Type 2 Diabetes Mellitus (T2DM) Patients With Iron Deficiency
Acronym
CLEVER
Official Title
Intravenous Ferric Carboxymaltose for Improvement of Metabolic Parameters and Vascular Function in T2DM-patients With Iron Deficiency
Study Type
Interventional
2. Study Status
Record Verification Date
February 2021
Overall Recruitment Status
Completed
Study Start Date
August 2012 (undefined)
Primary Completion Date
October 2018 (Actual)
Study Completion Date
April 2019 (Actual)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Sponsor
Name of the Sponsor
GWT-TUD GmbH
Collaborators
Vifor Pharma
4. Oversight
Data Monitoring Committee
No
5. Study Description
Brief Summary
The purpose of this study is to investigate the correlation between HbA1c and iron status in Type 2 Diabetes mellitus patients with iron deficiency by intravenous substitution of iron.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Type 2 Diabetes Mellitus, Iron Deficiency
Keywords
Diabetes, iron deficiency
7. Study Design
Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
Participant
Allocation
Randomized
Enrollment
152 (Anticipated)
8. Arms, Groups, and Interventions
Arm Title
ferric carboxymaltose
Arm Type
Experimental
Arm Description
Dose: according to SmPC; Duration: 12 weeks; Frequency: at week 1 and again at week 5 (if again indicated according to principal inclusion criteria); Application: intravenous
Arm Title
NaCl (0,9%)
Arm Type
Placebo Comparator
Arm Description
Duration: 12 weeks; Frequency: at week 1 and again at week 5 (if again indicated according to principal inclusion criteria); Application: intravenous
Intervention Type
Drug
Intervention Name(s)
ferric carboxymaltose
Other Intervention Name(s)
Ferinject (marketing authorization number: 66227.00.00)
Intervention Description
Dose:according to SmPC Duration: 12 weeks; Frequency: at week 1 and again at week 5 (if again indicated according to principal inclusion criteria); Application: intravenous
Intervention Type
Drug
Intervention Name(s)
NaCl (0,9%)
Intervention Description
Duration: 12 weeks; Frequency: at week 1 and again at week 5 (if again indicated according to principal inclusion criteria); Application: intravenous
Primary Outcome Measure Information:
Title
reduction in HBA1c-levels
Description
reduction of HbA1c from week 1 (baseline) to week 13
Time Frame
12 weeks
Secondary Outcome Measure Information:
Title
improvement of haematological and iron status
Description
Hb, MCV, MCH, hypochromic cells, reticulocyte Hb content, ferritin, transferrin, transferrin saturation (TSAT), sTFR, iron, hepcidin
Time Frame
12 weeks
Title
improvement in quality of life
Description
potential clinical improvement and improvement in quality of life (EQ5D) of patients with ID T2DM
Time Frame
12 weeks
Title
Improvement of metabolic status
Description
measurement of fasting glucose, fructosamine
Time Frame
12 weeks
Title
reliability of HbA1c-measurements
Description
measurement of HbA1c in week 0; 5 and 13
Time Frame
12 weeks
Title
improvement in vascular function
Description
Improvement in vascular function on the basis of the biomarker ADMA serum level
Time Frame
12 weeks
Title
Change in used insulin dosage during study
Description
Change in used insulin dosage during study (via patient diary)
Time Frame
12 weeks
10. Eligibility
Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
T2DM patients with diagnosis of ID defined as follows:
serum ferritin <150 ng/mL or TSAT <25% if Hb < 14 g/dL serum ferritin <100 ng/mL or TSAT <20% if Hb ≥ 14 g/dL and ≤ 15g/dL]
HbA1c: ≥ 6.5 to < 8.5 %
Age > 18 years
Written informed consent has been obtained.
Exclusion Criteria:
Continuous subcutaneous insulin infusion (CSII)
thalassaemia
Hb > 15 g/dL (> 9,31 mmol/L)
Change of HbA1c of more than ±0,3 % within the last 3 months.
known sensitivity to ferric carboxymaltose
history of acquired iron overload
History of erythropoietin stimulating agent, i.v. iron therapy, and/or blood transfusion in previous 12 weeks prior to randomisation
History of oral iron therapy at doses ≥ 100 mg/day 1 week prior to randomisation. Note: Ongoing oral use of multivitamins containing iron < 75 mg/day is permitted.
Body weight ≤ 40 kg
CRP > 15 mg/L
Chronic liver disease (including known active hepatitis) and/or screening alanine transaminase (ALAT) or aspartate transaminase (ASAT) > 3 x ULN (upper limit of the normal range).
Subjects with known hepatitis B surface antigen positivity and/or Hepatitis C virus ribonucleic acid positivity.
Vitamin B12 and/or serum folate deficiency. If deficiency corrected subject may be rescreened for inclusion.
Subjects with known seropositivity to human immunodeficiency virus.
Clinical evidence of current malignancy with exception of basal cell or squamous cell carcinoma of the skin, and cervical intraepithelial neoplasia.
Currently receiving systemic chemotherapy and/or radiotherapy.
Renal dialysis (previous, current or planned within the next 6 months).
Renal function GFR < 30 mL/min/ 1.73m2 (severe)
Unstable angina pectoris as judged by the Investigator; severe valvular or left ventricular outflow obstruction disease needing intervention; atrial fibrillation/flutter with a mean ventricular response rate at rest >100 beats per minute.
Acute myocardial infarction or acute coronary syndrome, transient ischaemic attack or stroke within the last 3 months prior to randomisation.
Coronary-artery bypass graft, percutaneous intervention (e.g., cardiac, cerebrovascular, aortic; diagnostic catheters are allowed) or major surgery, including thoracic and cardiac surgery, within the last 3 months prior to randomisation.
Patients with a polyneuropathy without ischemia.
Subject of child-bearing potential who is pregnant (e.g., positive human chorionic gonadotropin test) or is breast feeding.
Any subject not willing to use adequate contraceptive precautions during the study and for up to 5 days after the last scheduled dose of study medication.
Participation in other interventional trials
Female subject of child-bearing potential who is pregnant (e.g., positive human chorionic gonadotropin test) or is breast feeding.
Failure to use highly-effective contraceptive methods
Persons with any kind of dependency on the investigator or employed by the sponsor or investigator
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Christoph Schindler, MD
Organizational Affiliation
on behalf of GWT
Official's Role
Principal Investigator
Facility Information:
Facility Name
Gemeinschaftspraxis Dres. Grüneberg, Mehring, Stude
City
Herne
State/Province
Nordrhein-Westfalen
ZIP/Postal Code
32545
Country
Germany
Facility Name
Univesitätsklinikum Carl Gustav Carus
City
Dresden
State/Province
Sachsen
ZIP/Postal Code
01307
Country
Germany
Facility Name
Herz- und Diabeteszentrum NRW Ruhr-Universität Bochum
City
Bad Oeynhausen
ZIP/Postal Code
32545
Country
Germany
Facility Name
Studienzentrum Professor Hanefeld Abakus Büropark
City
Dresden
ZIP/Postal Code
01307
Country
Germany
Facility Name
Medizinische Hochschule Hannover Klinisches Forschungszentrum CRC
City
Hannover
ZIP/Postal Code
30625
Country
Germany
Facility Name
Diabetesinstitut Heidelberg
City
Heidelberg
ZIP/Postal Code
69115
Country
Germany
12. IPD Sharing Statement
Citations:
PubMed Identifier
29134606
Citation
Schindler C, Birkenfeld AL, Hanefeld M, Schatz U, Kohler C, Gruneberg M, Tschope D, Bluher M, Hasslacher C, Bornstein SR. Intravenous Ferric Carboxymaltose in Patients with Type 2 Diabetes Mellitus and Iron Deficiency: CLEVER Trial Study Design and Protocol. Diabetes Ther. 2018 Feb;9(1):37-47. doi: 10.1007/s13300-017-0330-z. Epub 2017 Nov 13. Erratum In: Diabetes Ther. 2018 Dec 6;:
Results Reference
derived
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Ferric Carboxymaltose in Type 2 Diabetes Mellitus (T2DM) Patients With Iron Deficiency
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