Trial Outcomes & Findings for Efficacy and Safety of Ferriprox® in Patients With Sickle Cell Disease or Other Anemias (NCT NCT02041299)

NCT ID: NCT02041299

Last Updated: 2021-08-10

Results Overview

LIC was measured by MRI. A score \>7 mg/g dw is indicative of iron overload.

Recruitment status

TERMINATED

Study phase

PHASE4

Target enrollment

230 participants

Primary outcome timeframe

Change from baseline to Week 52

Results posted on

2021-08-10

Participant Flow

Participant milestones

Participant milestones
Measure
Deferiprone
Patients randomized to the deferiprone arm (daily dosage of either 75 or 99 mg/kg divided into 3 equal doses, taken orally)
Deferoxamine
Patients randomized to the deferoxamine arm (either 20 mg/kg or up to 40 mg/kg for children, either 40 or 50 mg/kg for adults, administered as a subcutaneous infusion over 8-12 hours, 5 to 7 days a week)
Overall Study
STARTED
152
78
Overall Study
COMPLETED
106
58
Overall Study
NOT COMPLETED
46
20

Reasons for withdrawal

Reasons for withdrawal
Measure
Deferiprone
Patients randomized to the deferiprone arm (daily dosage of either 75 or 99 mg/kg divided into 3 equal doses, taken orally)
Deferoxamine
Patients randomized to the deferoxamine arm (either 20 mg/kg or up to 40 mg/kg for children, either 40 or 50 mg/kg for adults, administered as a subcutaneous infusion over 8-12 hours, 5 to 7 days a week)
Overall Study
Adverse Event
9
3
Overall Study
Lost to Follow-up
4
1
Overall Study
Physician Decision
1
1
Overall Study
Withdrawal by Subject
13
7
Overall Study
Protocol Violation
11
4
Overall Study
Termination of the study
7
3
Overall Study
Required bone marrow transplant
0
1
Overall Study
Patient stopped dosing on unknown date
1
0

Baseline Characteristics

Efficacy and Safety of Ferriprox® in Patients With Sickle Cell Disease or Other Anemias

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Deferiprone
n=152 Participants
Number of patients who received deferiprone
Deferoxamine
n=76 Participants
Number of patients who received deferoxamine
Total
n=228 Participants
Total of all reporting groups
Ethnicity (NIH/OMB)
Not Hispanic or Latino
142 Participants
n=5 Participants
70 Participants
n=7 Participants
212 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Continuous
16.9 years
STANDARD_DEVIATION 10.2 • n=5 Participants
16.9 years
STANDARD_DEVIATION 8.5 • n=7 Participants
16.9 years
STANDARD_DEVIATION 9.6 • n=5 Participants
Sex: Female, Male
Female
69 Participants
n=5 Participants
38 Participants
n=7 Participants
107 Participants
n=5 Participants
Sex: Female, Male
Male
83 Participants
n=5 Participants
38 Participants
n=7 Participants
121 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
10 Participants
n=5 Participants
6 Participants
n=7 Participants
16 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
23 Participants
n=5 Participants
14 Participants
n=7 Participants
37 Participants
n=5 Participants
Race (NIH/OMB)
White
120 Participants
n=5 Participants
56 Participants
n=7 Participants
176 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
9 Participants
n=5 Participants
6 Participants
n=7 Participants
15 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
Saudi Arabia
8 Participants
n=5 Participants
3 Participants
n=7 Participants
11 Participants
n=5 Participants
Region of Enrollment
Canada
1 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
Region of Enrollment
Turkey
1 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
Region of Enrollment
United States
16 Participants
n=5 Participants
7 Participants
n=7 Participants
23 Participants
n=5 Participants
Region of Enrollment
Egypt
105 Participants
n=5 Participants
51 Participants
n=7 Participants
156 Participants
n=5 Participants
Region of Enrollment
Brazil
9 Participants
n=5 Participants
7 Participants
n=7 Participants
16 Participants
n=5 Participants
Region of Enrollment
United Kingdom
6 Participants
n=5 Participants
5 Participants
n=7 Participants
11 Participants
n=5 Participants
Region of Enrollment
Tunisia
6 Participants
n=5 Participants
1 Participants
n=7 Participants
7 Participants
n=5 Participants
Liver iron concentration at baseline
16.54 mg iron per gram of liver dry weight
STANDARD_DEVIATION 7.49 • n=5 Participants
15.97 mg iron per gram of liver dry weight
STANDARD_DEVIATION 7.20 • n=7 Participants
16.26 mg iron per gram of liver dry weight
STANDARD_DEVIATION 7.30 • n=5 Participants
Cardiac iron at baseline
33.52 milliseconds
STANDARD_DEVIATION 6.26 • n=5 Participants
33.87 milliseconds
STANDARD_DEVIATION 6.17 • n=7 Participants
33.64 milliseconds
STANDARD_DEVIATION 6.22 • n=5 Participants
Serum ferritin level at baseline
4125.4 micrograms per liter
STANDARD_DEVIATION 2407.4 • n=5 Participants
4055.3 micrograms per liter
STANDARD_DEVIATION 2708.5 • n=7 Participants
4101.89 micrograms per liter
STANDARD_DEVIATION 2505.66 • n=5 Participants

PRIMARY outcome

Timeframe: Change from baseline to Week 52

Population: Intent-to-treat population

LIC was measured by MRI. A score \>7 mg/g dw is indicative of iron overload.

Outcome measures

Outcome measures
Measure
Deferiprone
n=122 Participants
Patients who received deferiprone and were evaluable for LIC and cardiac MRI T2\*
Deferoxamine
n=63 Participants
Patients who received deferoxamine and were evaluable for LIC and cardiac MRI T2\*
Change From Baseline in Liver Iron Concentration (LIC)
-4.13 mg of iron per gram of liver dry weight
Standard Error 0.50
-4.38 mg of iron per gram of liver dry weight
Standard Error 0.59

SECONDARY outcome

Timeframe: Change from baseline to Week 52

Population: Intent-to-treat population

Cardiac iron is measured by MRI in milliseconds (ms). A score of less than 20 ms is indicative of cardiac iron overload.

Outcome measures

Outcome measures
Measure
Deferiprone
n=122 Participants
Patients who received deferiprone and were evaluable for LIC and cardiac MRI T2\*
Deferoxamine
n=63 Participants
Patients who received deferoxamine and were evaluable for LIC and cardiac MRI T2\*
Change From Baseline in Cardiac Iron
-0.022068 milliseconds
Standard Error 0.021133
-0.021773 milliseconds
Standard Error 0.025261

SECONDARY outcome

Timeframe: Change from baseline to Week 52

Population: Intent-to-treat

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.

Outcome measures

Outcome measures
Measure
Deferiprone
n=133 Participants
Patients who received deferiprone and were evaluable for LIC and cardiac MRI T2\*
Deferoxamine
n=67 Participants
Patients who received deferoxamine and were evaluable for LIC and cardiac MRI T2\*
Change From Baseline in Serum Ferritin
-385.83 micrograms per liter
Standard Error 234.05
-760.89 micrograms per liter
Standard Error 289.40

SECONDARY outcome

Timeframe: Change from baseline to Week 52

Population: Due to administrative and other issues, a majority of participants were missing scores. Evaluable data were obtained from 35 DFP and 19 DFO patients for the SF-36, and from 60 DFP and 23 DFO patients for the CHQ.

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.

Outcome measures

Outcome measures
Measure
Deferiprone
n=95 Participants
Patients who received deferiprone and were evaluable for LIC and cardiac MRI T2\*
Deferoxamine
n=42 Participants
Patients who received deferoxamine and were evaluable for LIC and cardiac MRI T2\*
Change in Patient-reported Quality of Life, as Measured by the Short Form Health Survey (SF-36) or the Child Health Questionnaire (CHQ-PF50).
SF-36 Physical Summary
43.1 score on a scale
Standard Error 1.8
43.0 score on a scale
Standard Error 2.0
Change in Patient-reported Quality of Life, as Measured by the Short Form Health Survey (SF-36) or the Child Health Questionnaire (CHQ-PF50).
SF-36 Mental Summary
44.7 score on a scale
Standard Error 2.7
40.9 score on a scale
Standard Error 2.9
Change in Patient-reported Quality of Life, as Measured by the Short Form Health Survey (SF-36) or the Child Health Questionnaire (CHQ-PF50).
CHQ-PF50 Physical Summary
29.3 score on a scale
Standard Error 1.8
30.5 score on a scale
Standard Error 2.4
Change in Patient-reported Quality of Life, as Measured by the Short Form Health Survey (SF-36) or the Child Health Questionnaire (CHQ-PF50).
CHQ-PF50 Psychosocial Summary
42.5 score on a scale
Standard Error 1.5
41.3 score on a scale
Standard Error 2.1

Adverse Events

Deferiprone

Serious events: 40 serious events
Other events: 134 other events
Deaths: 1 deaths

Deferoxamine

Serious events: 14 serious events
Other events: 67 other events
Deaths: 1 deaths

Serious adverse events

Serious adverse events
Measure
Deferiprone
n=152 participants at risk
Patients randomized to the deferiprone arm will be prescribed either tablets or liquid medication. Deferiprone
Deferoxamine
n=76 participants at risk
Patients randomized to the deferoxamine arm will be prescribed the drug as per the approved US prescribing information. Deferoxamine
Blood and lymphatic system disorders
Agranulocytosis
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Blood and lymphatic system disorders
Haemolytic anaemia
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Blood and lymphatic system disorders
Hypersplenism
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Blood and lymphatic system disorders
Leukocytosis
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Blood and lymphatic system disorders
Neutropenia
2.6%
4/152 • Number of events 5 • 1 year
1.3%
1/76 • Number of events 2 • 1 year
Blood and lymphatic system disorders
Sickle cell anaemia with crisis
10.5%
16/152 • Number of events 31 • 1 year
5.3%
4/76 • Number of events 8 • 1 year
Cardiac disorders
Cardiac failure
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Ear and labyrinth disorders
Vertigo
0.00%
0/152 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Gastrointestinal disorders
Abdominal pain/upper
2.0%
3/152 • Number of events 3 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Gastrointestinal disorders
Diarrhoea
0.66%
1/152 • Number of events 1 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Gastrointestinal disorders
Nausea
0.00%
0/152 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Gastrointestinal disorders
Vomiting
0.66%
1/152 • Number of events 1 • 1 year
2.6%
2/76 • Number of events 2 • 1 year
General disorders
Malaise
0.00%
0/152 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
General disorders
Pain
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
General disorders
Pyrexia
3.3%
5/152 • Number of events 5 • 1 year
3.9%
3/76 • Number of events 5 • 1 year
Hepatobiliary disorders
Bile duct stone
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Hepatobiliary disorders
Hepatic failure
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Hepatobiliary disorders
Hepatic sequestration
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Hepatobiliary disorders
Hepatitis fulminant
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Infections and infestations
Arthritis bacterial
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Infections and infestations
Cellulitis
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Infections and infestations
Epididymitis
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Infections and infestations
Gastroenteritis viral
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Infections and infestations
Otitis media acute
0.00%
0/152 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Infections and infestations
Parvovirus infection
1.3%
2/152 • Number of events 2 • 1 year
0.00%
0/76 • 1 year
Infections and infestations
Pneumonia
1.3%
2/152 • Number of events 2 • 1 year
2.6%
2/76 • Number of events 3 • 1 year
Infections and infestations
Propionibacterium infection
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Infections and infestations
Pyelonephritis
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Infections and infestations
Sepsis
1.3%
2/152 • Number of events 2 • 1 year
0.00%
0/76 • 1 year
Infections and infestations
Sinusitis
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Infections and infestations
Sinusitis bacterial
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Infections and infestations
Tonsillitis
0.00%
0/152 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Infections and infestations
Upper respiratory tract infection
0.00%
0/152 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Infections and infestations
Urinary tract infection
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Infections and infestations
Vascular device infection
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Injury, poisoning and procedural complications
Road traffic accident
0.66%
1/152 • Number of events 1 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Investigations
Transaminases increased
1.3%
2/152 • Number of events 2 • 1 year
0.00%
0/76 • 1 year
Musculoskeletal and connective tissue disorders
Arthritis
0.00%
0/152 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Musculoskeletal and connective tissue disorders
Back pain
0.00%
0/152 • 1 year
2.6%
2/76 • Number of events 2 • 1 year
Musculoskeletal and connective tissue disorders
Bone infarction
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Musculoskeletal and connective tissue disorders
Muscular weakness
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Musculoskeletal and connective tissue disorders
Myositis
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Nervous system disorders
Cerebrovascular accident
0.00%
0/152 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Nervous system disorders
Dizziness
0.00%
0/152 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Nervous system disorders
Encephalopathy
1.3%
2/152 • Number of events 2 • 1 year
0.00%
0/76 • 1 year
Nervous system disorders
Facial paralysis
0.00%
0/152 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Nervous system disorders
Headache
0.00%
0/152 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Nervous system disorders
Migraine
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Nervous system disorders
Seizure
0.00%
0/152 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Nervous system disorders
Syncope
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Nervous system disorders
Transient ischaemic attack
0.00%
0/152 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Pregnancy, puerperium and perinatal conditions
Abortion spontaneous
1.3%
2/152 • Number of events 2 • 1 year
0.00%
0/76 • 1 year
Respiratory, thoracic and mediastinal disorders
Acute chest syndrome
2.0%
3/152 • Number of events 3 • 1 year
0.00%
0/76 • 1 year
Respiratory, thoracic and mediastinal disorders
Asthma
0.00%
0/152 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Respiratory, thoracic and mediastinal disorders
Pulmonary embolism
0.00%
0/152 • 1 year
1.3%
1/76 • Number of events 1 • 1 year
Surgical and medical procedures
Hip arthroplasty
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Surgical and medical procedures
Hip surgery
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year
Surgical and medical procedures
Splenectomy
1.3%
2/152 • Number of events 2 • 1 year
0.00%
0/76 • 1 year
Vascular disorders
Deep vein thrombosis
1.3%
2/152 • Number of events 2 • 1 year
0.00%
0/76 • 1 year
Vascular disorders
Hypovolaemic shock
0.66%
1/152 • Number of events 1 • 1 year
0.00%
0/76 • 1 year

Other adverse events

Other adverse events
Measure
Deferiprone
n=152 participants at risk
Patients randomized to the deferiprone arm will be prescribed either tablets or liquid medication. Deferiprone
Deferoxamine
n=76 participants at risk
Patients randomized to the deferoxamine arm will be prescribed the drug as per the approved US prescribing information. Deferoxamine
Blood and lymphatic system disorders
Sickle cell anaemia with crisis
13.8%
21/152 • Number of events 57 • 1 year
11.8%
9/76 • Number of events 17 • 1 year
Gastrointestinal disorders
Abdominal pain/upper
24.3%
37/152 • Number of events 86 • 1 year
13.2%
10/76 • Number of events 13 • 1 year
Gastrointestinal disorders
Diarrhoea
3.9%
6/152 • Number of events 8 • 1 year
6.6%
5/76 • Number of events 10 • 1 year
Gastrointestinal disorders
Nausea
7.2%
11/152 • Number of events 14 • 1 year
7.9%
6/76 • Number of events 6 • 1 year
Gastrointestinal disorders
Toothache
2.0%
3/152 • Number of events 3 • 1 year
6.6%
5/76 • Number of events 5 • 1 year
Gastrointestinal disorders
Vomiting
18.4%
28/152 • Number of events 59 • 1 year
9.2%
7/76 • Number of events 8 • 1 year
General disorders
Chest pain
3.3%
5/152 • Number of events 6 • 1 year
5.3%
4/76 • Number of events 4 • 1 year
General disorders
Injection site pain
0.00%
0/152 • 1 year
6.6%
5/76 • Number of events 6 • 1 year
General disorders
Injection site swelling
0.00%
0/152 • 1 year
5.3%
4/76 • Number of events 8 • 1 year
General disorders
Pain
5.3%
8/152 • Number of events 13 • 1 year
3.9%
3/76 • Number of events 3 • 1 year
General disorders
Pyrexia
26.3%
40/152 • Number of events 65 • 1 year
28.9%
22/76 • Number of events 33 • 1 year
Infections and infestations
Influenza
3.3%
5/152 • Number of events 8 • 1 year
6.6%
5/76 • Number of events 5 • 1 year
Infections and infestations
Nasopharyngitis
9.2%
14/152 • Number of events 22 • 1 year
11.8%
9/76 • Number of events 13 • 1 year
Investigations
Alanine aminotransferase increased
11.8%
18/152 • Number of events 27 • 1 year
0.00%
0/76 • 1 year
Investigations
Aspartate aminotransferase increased
11.2%
17/152 • Number of events 26 • 1 year
0.00%
0/76 • 1 year
Investigations
Neutrophil count decreased
7.9%
12/152 • Number of events 16 • 1 year
3.9%
3/76 • Number of events 4 • 1 year
Musculoskeletal and connective tissue disorders
Arthralgia
9.9%
15/152 • Number of events 24 • 1 year
7.9%
6/76 • Number of events 7 • 1 year
Musculoskeletal and connective tissue disorders
Back pain
13.2%
20/152 • Number of events 33 • 1 year
17.1%
13/76 • Number of events 25 • 1 year
Musculoskeletal and connective tissue disorders
Bone pain
25.0%
38/152 • Number of events 92 • 1 year
34.2%
26/76 • Number of events 62 • 1 year
Musculoskeletal and connective tissue disorders
Pain in extremity
17.8%
27/152 • Number of events 36 • 1 year
14.5%
11/76 • Number of events 15 • 1 year
Nervous system disorders
Headache
19.7%
30/152 • Number of events 54 • 1 year
13.2%
10/76 • Number of events 17 • 1 year
Renal and urinary disorders
Chromaturia
5.9%
9/152 • Number of events 10 • 1 year
2.6%
2/76 • Number of events 2 • 1 year
Respiratory, thoracic and mediastinal disorders
Cough
7.9%
12/152 • Number of events 14 • 1 year
14.5%
11/76 • Number of events 13 • 1 year
Respiratory, thoracic and mediastinal disorders
Oropharyngeal pain
9.9%
15/152 • Number of events 19 • 1 year
14.5%
11/76 • Number of events 13 • 1 year

Additional Information

Fernando Tricta, MD

Chiesi Canada Corp.

Phone: 1-416-558-6342

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: LTE60