Efficacy and Safety of Ferriprox® in Patients With Sickle Cell Disease or Other Anemias (FIRST)
|The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.|
|ClinicalTrials.gov Identifier: NCT02041299|
Recruitment Status : Terminated (Difficulties with additional recruitment as pool of potential patients was exhausted, and sufficient information for determination of study outcome measure was already obtained)
First Posted : January 22, 2014
Results First Posted : August 10, 2021
Last Update Posted : August 10, 2021
|Condition or disease||Intervention/treatment||Phase|
|Iron Overload Sickle Cell Disease Other Anemias||Drug: Deferiprone Drug: Deferoxamine||Phase 4|
Deferiprone (brand name Ferriprox®) is an iron chelator that is approved in the United States and over 60 other countries for the treatment of iron overload in patients with thalassemia, when other treatments are inadequate. This study has been designed to evaluate the efficacy, safety, and tolerability of deferiprone vs. deferoxamine in patients who have SCD or other anemias, and who require chelation because of the extra iron they are taking in through blood transfusions.
About 300 people from North America, South America, Europe, and the Middle East will take part in this study. Participants will be randomized in a 2:1 ratio to receive therapy for 52 weeks with either deferiprone or deferoxamine, another type of iron chelator. Patients who are randomized to the deferiprone group can choose to get the drug as either tablets or liquid, and must take it three times daily. Patients who are randomized to the deferoxamine group will receive it as a subcutaneous infusion that lasts from 8 to 12 hours and is given 5 to 7 days per week. For both drugs, the starting dosage is based on how much extra iron they have taken in through transfusions in the last 3 months and on the severity of iron load, as measured by serum ferritin levels in the blood and by the amount of iron in the liver and the heart. For deferiprone, the starting dosage will be increased each week over the first 3 weeks; and for both drugs, the dosage may be adjusted up or down during the study based on the level of iron overload and on safety considerations.
Patients will need to have their blood count checked every week for the first 26 weeks, then every other week for the remaining 26 weeks; they will also have to give a blood sample for more detailed safety testing every month; and to give a blood sample for the measurement of serum ferritin every 3 months. Every six months, they will undergo an ECG and an MRI scan, and will be asked to complete a quality of life survey.
At the end of the 52 weeks, participants will be invited to enter a 2-year study in which all patients will receive deferiprone, including those who were randomized to receive deferoxamine in the first year.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||230 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||None (Open Label)|
|Official Title:||The Efficacy and Safety of Ferriprox® for the Treatment of Transfusional Iron Overload in Patients With Sickle Cell Disease or Other Anemias|
|Actual Study Start Date :||April 17, 2014|
|Actual Primary Completion Date :||April 20, 2019|
|Actual Study Completion Date :||June 18, 2019|
Patients randomized to the deferiprone arm will be prescribed either tablets or liquid medication. Deferiprone is taken orally, at a dosage that is calculated in terms of milligrams per kilogram of body weight (mg/kg) and is divided into 3 equal doses taken approximately 8 hours apart. The daily dosage is 75 mg/kg (25 mg/kg per dose) for patients with less severe iron load, and 99 mg/kg (33 mg/kg per dose) for those with more severe iron load.
Active Comparator: Deferoxamine
Patients randomized to the deferoxamine arm will be prescribed the drug as per the approved US prescribing information. Deferoxamine is administered as a subcutaneous infusion over 8-12 hours, 5 to 7 days a week. The dosage is 20 mg/kg (children) or 40 mg/kg (adults) in patients with less severe iron load, and up to 40 mg/kg (children) or 50 mg/kg (adults) in those with more severe iron load.
- Change From Baseline in Liver Iron Concentration (LIC) [ Time Frame: Change from baseline to Week 52 ]LIC was measured by MRI. A score >7 mg/g dw is indicative of iron overload.
- Change From Baseline in Cardiac Iron [ Time Frame: Change from baseline to Week 52 ]Cardiac iron is measured by MRI in milliseconds (ms). A score of less than 20 ms is indicative of cardiac iron overload.
- Change From Baseline in Serum Ferritin [ Time Frame: Change from baseline to Week 52 ]Serum ferritin provides a measure of iron level in the blood. Normal levels of serum ferritin are under 300 µg/L for females and 400 µg/L for males.
- Change in Patient-reported Quality of Life, as Measured by the Short Form Health Survey (SF-36) or the Child Health Questionnaire (CHQ-PF50). [ Time Frame: Change from baseline to Week 52 ]Adult patients completed the SF-36 questionnaire and minors completed the CHQ-PF50. These questionnaires yield a profile of functional health and well-being, based on 8 scales of physical and mental health measures: Physical Functioning, Role Limitations due to Physical Health, Bodily Pain, General Health Perceptions, Vitality, Social Functioning, Role Limitations due to Emotional Problems, and Mental Health (MH), and summary scores are produced for physical well-being and mental well-being. The summaries are scored from 0-100, with higher scores reflecting better outcomes.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02041299
|Principal Investigator:||Janet Kwiatkowski, MD||Children's Hospital of Philadelphia|