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An Extension Trial to Assess the Safety of Re-dosing of Iron Isomaltoside/Ferric Derisomaltose (Monofer®/Monoferric®)

An Open-label, Multicentre, Extension Trial to Assess the Safety of Re-dosing of Intravenous Iron Isomaltoside/Ferric Derisomaltose (Monofer®/Monoferric®)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02962648
Acronym
FERWON-EXT
Enrollment
103
Registered
2016-11-11
Start date
2017-01-09
Completion date
2018-06-12
Last updated
2020-03-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Iron Deficiency Anaemia, Iron Deficiency Anemia

Keywords

Iron Deficiency Anemia, Iron Deficiency Anaemia, IDA, Intravenous iron replacement therapy, Chronic Kidney Disease, CKD, Iron isomaltoside, Ferric derisomaltose, Monofer, Monoferric, Monover, Monofar, Monoferro

Brief summary

Evaluate safety and efficacy of intravenous (IV) iron isomaltoside/ferric derisomaltose re-dosing, in subjects who were previously treated with iron isomaltoside/ferric derisomaltose.

Detailed description

Among the various formulations of parenteral iron that are currently available, iron isomaltoside/ferric derisomaltose may allow flexibility in terms of high and rapid dosing. Up to now, most clinical trials with intravenous (IV) iron treatment were of 4-12 weeks in duration; longer trials are warranted to follow-up on long-term safety. The aim of the trial was to evaluate the safety and efficacy of IV iron isomaltoside/ferric derisomaltose re-dosing in subjects who were previously treated with iron isomaltoside/ferric derisomaltose in lead-in trials. This was a 6-months extension trial lasting 26 weeks. Eligible subjects attended 5 visits: screening, baseline (subjects treated with a single IV dose of 1000 mg iron isomaltoside/ferric derisomaltose), and follow-up visits at week 2, 13, and 26 weeks after the IV dose, for safety and efficacy assessments.

Interventions

Iron isomaltoside/ferric derisomaltose (Monofer®/Monoferric®; 100 mg/mL) was the test product in this trial. The dose of iron isomaltoside/ferric derisomaltose for the individual subject was set to 1000 mg. The dose was diluted in 100 mL 0.9 % sodium chloride from the site's supply and administered over approximately 20 minutes using IV infusion.

Sponsors

Pharmacosmos A/S
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Completed one of the lead-in trials 2. Randomised and dosed with iron isomaltoside/ferric derisomaltose in one of the lead-in trials. 3. Haemoglobin (Hb) of ≤ 11 g/dL 4. Screening serum ferritin (s-ferritin) ≤ 100 ng/mL, or ≤ 300 ng/mL if transferrin saturation (TSAT) ≤ 30 % 5. Willingness to participate and signing the informed consent form (ICF)

Exclusion criteria

1. Intravenous (IV) iron treatment between the lead-in trial and screening 2. During 30-day period prior to screening or during the trial period; has or will be treated with a red blood cell transfusion, radiotherapy, and/or chemotherapy 3. Received an investigational drug within 30 days of screening 4. Decompensated liver cirrhosis or active hepatitis 5. Pregnant or nursing women. 6. Any other laboratory abnormality, medical condition, or psychiatric disorders which, in the opinion of the Investigator, will put the subject's disease management at risk or may result in the subject being unable to comply with the trial requirements

Design outcomes

Primary

MeasureTime frameDescription
Number of Subjects With Adverse Drug Reactions (ADR)Baseline to week 26Safety Evaluate the number of subjects with adverse drug reactions (ADRs), defined as AEs that were assessed by the investigator as related or possible related to the investigational product.

Secondary

MeasureTime frameDescription
Composite Cardiovascular Adverse Events (AEs)Baseline to week 26Safety Results show the composite cardiovascular AEs, that started on or after the first dose of treatment (i.e. treatment emergent) up to month 6. The reported potential cardiovascular AEs were adjudicated in a blinded fashion by an independent Clinical Endpoint Adjudication Committee (CEAC). The potential cardiovascular AEs included the following: * Death due to any cause * Non-fatal myocardial infarction * Non-fatal stroke * Unstable angina requiring hospitalisation * Congestive heart failure requiring hospitalisation or medical intervention * Arrhythmias * Hypertension * Hypotension Results show only those participants that had adjudicated and confirmed treatment-emergent composite cardiovascular AEs.
Time to First Composite Cardiovascular Safety AEBaseline, week 2, 13, and 26Safety Time to first composite cardiovascular AE was defined as the actual time in days from first dose of treatment until the date of the composite cardiovascular AE. For subjects not reporting a composite cardiovascular AE, the time was censored at the date of the last attended visit. Only the adjudicated and confirmed composite cardiovascular safety AEs, as judged by the Clinical Endpoint Adjudication Committee (CEAC), were considered for this endpoint. Time to first composite cardiovascular AE was defined as the actual time in days from first dose of treatment until the date of the composite cardiovascular AE. For subjects not reporting a composite cardiovascular AE, the time was censored at the date of the last attended visit.
S-phosphate <2 mg/dL at Any Time From Baseline to Week 26Baseline to week 26Safety Results show the number of trial participants and their status of s-phosphate \<2 mg/dL, at any time from baseline to week 26.
Incidence of Protocol-defined Serious or Severe Hypersensitivity ReactionsBaseline to week 26Safety. For this endpoint, the number of participants with serious or severe hypersensitivity reactions were evaluated. The hypersensitivity terms that were included in the analysis were those that started or after the first dose of treatment (i.e. treatment emergent). The terms used to define hypersensitivity were those specified by the Standardised MedDRA Queries (SMQ) for hypersensitivity, plus four additional terms: Loss of consciousness; Seizure; Syncope; Unresponsiveness. The potential hypersensitivity AEs were adjudicated in a blinded fashion by an independent Clinical Endpoint Adjudication Committee (CEAC). Results show only those participants that had adjudicated and confirmed serious or severe hypersensitivity reactions.
Change in S-ferritin From Baseline to Week 2, 13, and 26Baseline, week 2, 13, and 26Efficacy. Change in s-ferritin from baseline to week 2, 13, and 26.
Change in Transferrin Saturation (TSAT) From Baseline to Week 2, 13, and 26Baseline, week 2, 13, and 26Efficacy Change in transferrin saturation (TSAT) from baseline to week 2, 13, and 26. TSAT is the value of serum iron divided by the total iron-binding capacity and the unit is %, which referrers to % of iron-binding sites of transferrin being occupied by iron.
Change in S-iron From Baseline to Week 2, 13, and 26Baseline, week 2, 13, and 26Efficacy. Change in s-iron from baseline to week 2, 13, and 26.
Change in Hb From Baseline to Week 2, 13, and 26Baseline, week 2, 13, and 26Efficacy. Change in Hb from baseline to week 2, 13, and 26.

Countries

United States

Participant flow

Recruitment details

A total of 193 subjects were screened and 103 subjects were enrolled into the trial.

Pre-assignment details

Subjects enrolled in this extension trial had previously participated in the lead-in trials IDA-03 (52%, NCT02940886), CKD-04 (32%, NCT02940860), and IDA-01 (16%, NCT02130063).

Participants by arm

ArmCount
Iron Isomaltoside/Ferric Derisomaltose
Iron isomaltoside/ferric derisomaltose, administered IV
103
Total103

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyLost to Follow-up3
Overall StudyPhysician Decision1
Overall StudySubject had problems with transportation2
Overall StudyWithdrawal by Subject3

Baseline characteristics

CharacteristicIron Isomaltoside/Ferric Derisomaltose
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
21 Participants
Age, Categorical
Between 18 and 65 years
82 Participants
Age, Continuous49.9 years
STANDARD_DEVIATION 15.7
Age, Customized
18-64 years
82 Participants
Age, Customized
65-84 years
18 Participants
Age, Customized
>84 years
3 Participants
Current smoker
No
95 Participants
Current smoker
Yes
8 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
46 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
57 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
41 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
60 Participants
Region of Enrollment
United States
103 participants
Sex: Female, Male
Female
87 Participants
Sex: Female, Male
Male
16 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
1 / 193
other
Total, other adverse events
17 / 102
serious
Total, serious adverse events
13 / 102

Outcome results

Primary

Number of Subjects With Adverse Drug Reactions (ADR)

Safety Evaluate the number of subjects with adverse drug reactions (ADRs), defined as AEs that were assessed by the investigator as related or possible related to the investigational product.

Time frame: Baseline to week 26

Population: Safety analysis set: included all subjects who received at least one dose of the investigational product.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Iron Isomaltoside/Ferric DerisomaltoseNumber of Subjects With Adverse Drug Reactions (ADR)5 Participants
Secondary

Change in Hb From Baseline to Week 2, 13, and 26

Efficacy. Change in Hb from baseline to week 2, 13, and 26.

Time frame: Baseline, week 2, 13, and 26

Population: Intention-to-treat (ITT) analysis set: included all subjects, except for screening failures and subjects withdrawn before visit 2 (baseline).

ArmMeasureGroupValue (MEAN)Dispersion
Iron Isomaltoside/Ferric DerisomaltoseChange in Hb From Baseline to Week 2, 13, and 26Week 21.23 g/dLStandard Deviation 1.4
Iron Isomaltoside/Ferric DerisomaltoseChange in Hb From Baseline to Week 2, 13, and 26Week 131.73 g/dLStandard Deviation 1.83
Iron Isomaltoside/Ferric DerisomaltoseChange in Hb From Baseline to Week 2, 13, and 26Week 261.34 g/dLStandard Deviation 1.93
Secondary

Change in S-ferritin From Baseline to Week 2, 13, and 26

Efficacy. Change in s-ferritin from baseline to week 2, 13, and 26.

Time frame: Baseline, week 2, 13, and 26

Population: Intention-to-treat (ITT) analysis set: included all subjects, except for screening failures and subjects withdrawn before visit 2 (baseline).

ArmMeasureGroupValue (MEAN)Dispersion
Iron Isomaltoside/Ferric DerisomaltoseChange in S-ferritin From Baseline to Week 2, 13, and 26Week 2255.6 ng/mLStandard Deviation 177.9
Iron Isomaltoside/Ferric DerisomaltoseChange in S-ferritin From Baseline to Week 2, 13, and 26Week 1387.9 ng/mLStandard Deviation 123.6
Iron Isomaltoside/Ferric DerisomaltoseChange in S-ferritin From Baseline to Week 2, 13, and 26Week 2693.9 ng/mLStandard Deviation 180.4
Secondary

Change in S-iron From Baseline to Week 2, 13, and 26

Efficacy. Change in s-iron from baseline to week 2, 13, and 26.

Time frame: Baseline, week 2, 13, and 26

Population: Intention-to-treat (ITT) analysis set: included all subjects, except for screening failures and subjects withdrawn before visit 2 (baseline).

ArmMeasureGroupValue (MEAN)Dispersion
Iron Isomaltoside/Ferric DerisomaltoseChange in S-iron From Baseline to Week 2, 13, and 26Week 221.1 μg/dLStandard Deviation 50.5
Iron Isomaltoside/Ferric DerisomaltoseChange in S-iron From Baseline to Week 2, 13, and 26Week 1310.7 μg/dLStandard Deviation 45.4
Iron Isomaltoside/Ferric DerisomaltoseChange in S-iron From Baseline to Week 2, 13, and 26Week 264.0 μg/dLStandard Deviation 44.1
Secondary

Change in Transferrin Saturation (TSAT) From Baseline to Week 2, 13, and 26

Efficacy Change in transferrin saturation (TSAT) from baseline to week 2, 13, and 26. TSAT is the value of serum iron divided by the total iron-binding capacity and the unit is %, which referrers to % of iron-binding sites of transferrin being occupied by iron.

Time frame: Baseline, week 2, 13, and 26

Population: Intention-to-treat (ITT) analysis set: included all subjects, except for screening failures and subjects withdrawn before visit 2 (baseline).

ArmMeasureGroupValue (MEAN)Dispersion
Iron Isomaltoside/Ferric DerisomaltoseChange in Transferrin Saturation (TSAT) From Baseline to Week 2, 13, and 26Week 28.16 percentage of saturationStandard Deviation 11.87
Iron Isomaltoside/Ferric DerisomaltoseChange in Transferrin Saturation (TSAT) From Baseline to Week 2, 13, and 26Week 134.42 percentage of saturationStandard Deviation 10.81
Iron Isomaltoside/Ferric DerisomaltoseChange in Transferrin Saturation (TSAT) From Baseline to Week 2, 13, and 26Week 261.78 percentage of saturationStandard Deviation 10.63
Secondary

Composite Cardiovascular Adverse Events (AEs)

Safety Results show the composite cardiovascular AEs, that started on or after the first dose of treatment (i.e. treatment emergent) up to month 6. The reported potential cardiovascular AEs were adjudicated in a blinded fashion by an independent Clinical Endpoint Adjudication Committee (CEAC). The potential cardiovascular AEs included the following: * Death due to any cause * Non-fatal myocardial infarction * Non-fatal stroke * Unstable angina requiring hospitalisation * Congestive heart failure requiring hospitalisation or medical intervention * Arrhythmias * Hypertension * Hypotension Results show only those participants that had adjudicated and confirmed treatment-emergent composite cardiovascular AEs.

Time frame: Baseline to week 26

Population: Safety analysis set: included all subjects who received at least one dose of the investigational product.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Iron Isomaltoside/Ferric DerisomaltoseComposite Cardiovascular Adverse Events (AEs)6 Participants
Secondary

Incidence of Protocol-defined Serious or Severe Hypersensitivity Reactions

Safety. For this endpoint, the number of participants with serious or severe hypersensitivity reactions were evaluated. The hypersensitivity terms that were included in the analysis were those that started or after the first dose of treatment (i.e. treatment emergent). The terms used to define hypersensitivity were those specified by the Standardised MedDRA Queries (SMQ) for hypersensitivity, plus four additional terms: Loss of consciousness; Seizure; Syncope; Unresponsiveness. The potential hypersensitivity AEs were adjudicated in a blinded fashion by an independent Clinical Endpoint Adjudication Committee (CEAC). Results show only those participants that had adjudicated and confirmed serious or severe hypersensitivity reactions.

Time frame: Baseline to week 26

Population: Safety analysis set: included all subjects who received at least one dose of the investigational product.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Iron Isomaltoside/Ferric DerisomaltoseIncidence of Protocol-defined Serious or Severe Hypersensitivity Reactions0 Participants
Secondary

S-phosphate <2 mg/dL at Any Time From Baseline to Week 26

Safety Results show the number of trial participants and their status of s-phosphate \<2 mg/dL, at any time from baseline to week 26.

Time frame: Baseline to week 26

Population: Safety analysis set: included all subjects who received at least one dose of the investigational product.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Iron Isomaltoside/Ferric DerisomaltoseS-phosphate <2 mg/dL at Any Time From Baseline to Week 26Yes8 Participants
Iron Isomaltoside/Ferric DerisomaltoseS-phosphate <2 mg/dL at Any Time From Baseline to Week 26No94 Participants
Secondary

Time to First Composite Cardiovascular Safety AE

Safety Time to first composite cardiovascular AE was defined as the actual time in days from first dose of treatment until the date of the composite cardiovascular AE. For subjects not reporting a composite cardiovascular AE, the time was censored at the date of the last attended visit. Only the adjudicated and confirmed composite cardiovascular safety AEs, as judged by the Clinical Endpoint Adjudication Committee (CEAC), were considered for this endpoint. Time to first composite cardiovascular AE was defined as the actual time in days from first dose of treatment until the date of the composite cardiovascular AE. For subjects not reporting a composite cardiovascular AE, the time was censored at the date of the last attended visit.

Time frame: Baseline, week 2, 13, and 26

Population: Safety analysis set: included all subjects who received at least one dose of the investigational product.

ArmMeasureValue (MEDIAN)
Iron Isomaltoside/Ferric DerisomaltoseTime to First Composite Cardiovascular Safety AENA week

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026