Iron Isomaltoside/Ferric Derisomaltose vs Iron Sucrose for the Treatment of Iron Deficiency Anemia (IDA)

Efficacy

Evaluate the effect on the hemoglobin (Hb) level following treatment with iron isomaltoside/ferric derisomaltose vs iron sucrose in subjects with iron deficiency anaemia (IDA) .

Response was defined as change from baseline in hemoglobin (Hb) to week 8, i.e. ability to increase Hb in subjects with IDA, when oral iron preparations were ineffective or could not be used or in whom the screening Hb measurement in Investigators' opinion were sufficiently low to require rapid repletion of iron stores.

Safety

For this endpoint, the number of participants with serious or severe hypersensitivity reactions were evaluated. The hypersensitivity reactions that were included in the analysis were those that started on or after the first dose of randomised 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.

Safety

Results show the composite cardiovascular adverse events (AEs), that started on or after the first dose of randomised treatment (i.e. treatment emergent) up to week 8.

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.

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 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.

Safety

Results show the number of subjects who had s-phosphate <2 mg/dL at any time from baseline to week 1, 2, 4, or 8.

Efficacy

Results show responders to the treatment. A subject was considered a Hb responder to a certain week if an increase in Hb of at least 2 g/dL from baseline to the week in question was observed (week 1, 2, 4, and 8).

Efficacy

Time to change in Hb concentration ≥2 g/dL. Subjects who achieved Hb concentration increase of ≥2 g/dL (from baseline to week 1, 2, 4, or 8).

For responders, time to Hb response was defined as the scheduled time from baseline until the visit where the first Hb response was measured.

Efficacy

Hb concentration of >12 g/dL at any time from week 1 to week 8.

Results show the number of participants who achieved Hb concentration of >12 g/dL at any time from week 1 to week 8.

Efficacy

Results show the number of participants who achieved Hb concentration increase of ≥2 g/dL at any time from week 1 to week 8.

Efficacy

Proportion of subjects reaching the composite endpoint of s-ferritin concentration ≥100 ng/mL and TSAT of 20-50% at any time from week 1 to 8.

Efficacy

Change in Hb concentration from baseline to week 1, 2, and 4.

Efficacy

Change in s-ferritin concentration from baseline to weeks 1, 2, 4, and 8.

Efficacy

Changes in transferrin saturation (TSAT) from baseline to week 1, 2, 4, and 8.

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.

Efficacy

Changes in the concentrations of serum iron (s-iron) from baseline to week 1, 2, 4, and 8.

Efficacy

Change in fatigue symptoms from baseline to week 1, 2, and 8 was measured by the Functional Assessment of Chronic Illness Therapy (FACIT) Fatigue Scale.

The Functional Assessment of Chronic Illness Therapy (FACIT) Fatigue Scale consisted of 13 items ranging from 0 (not at all) to 4 (very much), except items #7 and #8 which are reversed scored. The total score range is 0-52.

A score of less than 30 indicated severe fatigue, and the higher the score, the better outcome/quality of life (QoL). If more than 50% of the items for a subject at a given visit were missing, the total score was not calculated.

Total score was calculated as shown below:

Total score= Sum of individual scores x 13 / Number of items answered

Pharmacoeconomics

The Intervals in Screening for Diabetic Retinopathy (ISDR) questionnaire at the baseline visit assessed the resources used by subjects to receive treatment. Resources used on other trial activities were not included. ISDR responses were summarised using descriptive statistics.

The data for this endpoint show the responses at baseline for both treatment groups.

The frequency of drug administration between the 2 treatment groups is different, however, (i.e. up to a factor 5 in the iron sucrose treatment group).

Pharmacoeconomics

The Intervals in Screening for Diabetic Retinopathy (ISDR) questionnaire at the baseline visit assessed the resources used by subjects to receive treatment. Resources used on other trial activities were not included. ISDR responses were summarised using descriptive statistics.

The data for this endpoint show the responses at baseline for both treatment groups.

The frequency of drug administration between the 2 treatment groups is different, however, (i.e. up to a factor 5 in the iron sucrose treatment group).

Pharmacoeconomics

The Intervals in Screening for Diabetic Retinopathy (ISDR) questionnaire at the baseline visit assessed the resources used by subjects to receive treatment. Resources used on other trial activities were not included. ISDR responses were summarised using descriptive statistics.

The data for this endpoint show the responses at baseline for both treatment groups.

The frequency of drug administration between the 2 treatment groups is different, however, (i.e. up to a factor 5 in the iron sucrose treatment group).

Pharmacoeconomics

The Intervals in Screening for Diabetic Retinopathy (ISDR) questionnaire at the baseline visit assessed the resources used by subjects to receive treatment. Resources used on other trial activities were not included. ISDR responses were summarised using descriptive statistics.

The data for this endpoint show the responses at baseline for both treatment groups.

The frequency of drug administration between the 2 treatment groups is different, however, (i.e. up to a factor 5 in the iron sucrose treatment group).

Pharmacoeconomics

Resources used by the health care staff (per administration), measured by the health care resource use questionnaire. The questionnaire assessed the time used by the health care staff during administration of the investigational product and the administration time (including the observational time). The health care participants included in the evaluation were: investigator, pharmacist, physician, study coordinator, study nurse.

The data for this endpoint show the responses at baseline for both treatment groups.

The frequency of drug administration between the treatment groups is different (i.e. up to a factor 5 more frequent in the iron sucrose treatment group).