Clinical Trial Results:
A Multicenter, Open-Label, Single-arm Study to Assess the Efficacy and Safety of PF-06462700 Administered Intravenously at 40 mg/kg/day for 4 Days in Japanese Participants With Moderate and Above Aplastic Anemia
Summary
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EudraCT number |
2021-002155-11 |
Trial protocol |
Outside EU/EEA |
Global end of trial date |
19 Apr 2021
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Results information
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Results version number |
v2 |
This version publication date |
15 Apr 2022
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First version publication date |
21 Oct 2021
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Other versions |
v1 , v3 |
Version creation reason |
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Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
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Trial identification
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Sponsor protocol code |
B5411003
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT04350606 | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
Pfizer Inc.
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Sponsor organisation address |
235 E 42nd Street, New York, NY 10017, United States,
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Public contact |
Pfizer ClinicalTrials.gov Call Center, Pfizer Inc., 001 18007181021, ClinicalTrials.gov_Inquiries@pfizer.com
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Scientific contact |
Pfizer ClinicalTrials.gov Call Center, Pfizer Inc., 001 18007181021, ClinicalTrials.gov_Inquiries@pfizer.com
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
No
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Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
Yes
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
09 Sep 2021
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Is this the analysis of the primary completion data? |
No
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Global end of trial reached? |
Yes
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Global end of trial date |
19 Apr 2021
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Was the trial ended prematurely? |
No
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General information about the trial
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Main objective of the trial |
To investigate the efficacy of PF- 06462700 administered intravenously at 40 mg/kg/day for 4 days in Japanese participants with moderate and above aplastic anemia.
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Protection of trial subjects |
The study was in compliance with the ethical principles derived from the Declaration of Helsinki and in compliance with all International Council for Harmonisation (ICH) Good Clinical Practice (GCP) Guidelines. All the local regulatory requirements pertinent to safety of trial subjects were followed.
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
25 Jul 2020
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Long term follow-up planned |
No
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Independent data monitoring committee (IDMC) involvement? |
No
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Population of trial subjects
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Number of subjects enrolled per country |
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Country: Number of subjects enrolled |
Japan: 3
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Worldwide total number of subjects |
3
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EEA total number of subjects |
0
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Number of subjects enrolled per age group |
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In utero |
0
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Preterm newborn - gestational age < 37 wk |
0
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Newborns (0-27 days) |
0
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Infants and toddlers (28 days-23 months) |
0
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Children (2-11 years) |
0
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Adolescents (12-17 years) |
1
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Adults (18-64 years) |
2
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From 65 to 84 years |
0
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85 years and over |
0
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Recruitment
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Recruitment details |
- | ||||||||||
Pre-assignment
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Screening details |
The study was conducted in single country from 25 July 2020 to 19 Apr 2021. Total 3 subjects signed the inform consent form (ICF). Out of which 0 subjects were screen failures, 3 actually enrolled into the study and assigned to a study treatment. | ||||||||||
Period 1
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Period 1 title |
Overall Study (overall period)
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Is this the baseline period? |
Yes | ||||||||||
Allocation method |
Not applicable
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Blinding used |
Not blinded | ||||||||||
Arms
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Arm title
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PF-06462700 | ||||||||||
Arm description |
Subjects aged 2 years or greater than (>) 2 years with moderate and above severity aplastic anemia received PF-06462700 at a dose of 40 milligram per kilogram per day (mg/kg/day), intravenously (IV) for 4 days. Subjects after treatment were followed up for 24 weeks. | ||||||||||
Arm type |
Experimental | ||||||||||
Investigational medicinal product name |
PF-06462700
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Solution for infusion
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Routes of administration |
Intravenous use
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Dosage and administration details |
Subjects received PF-06462700 dose of 40 mg/kg/day for 4 days.
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Baseline characteristics reporting groups
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Reporting group title |
PF-06462700
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Reporting group description |
Subjects aged 2 years or greater than (>) 2 years with moderate and above severity aplastic anemia received PF-06462700 at a dose of 40 milligram per kilogram per day (mg/kg/day), intravenously (IV) for 4 days. Subjects after treatment were followed up for 24 weeks. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
PF-06462700
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Reporting group description |
Subjects aged 2 years or greater than (>) 2 years with moderate and above severity aplastic anemia received PF-06462700 at a dose of 40 milligram per kilogram per day (mg/kg/day), intravenously (IV) for 4 days. Subjects after treatment were followed up for 24 weeks. |
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End point title |
Number of Subjects With Hematologic Response at Week 12 [1] | ||||||||||
End point description |
Hematologic response was considered to be “effective” when 2 or more of the following criteria were met: absolute neutrophil count greater than or equal to (>=) 500 per microliters, platelet count >=20,000 per microliters and reticulocyte count >=60,000 per microliters was observed. In this outcome measure, number of subjects with hematologic response classified as effective and not effective were reported. Improvement in counts that were dependent upon exogenously administered growth factors or transfusion, was not considered as fulfilling response criteria. Full analysis set (FAS) included subjects were assigned to investigational product and who took at least 1 dose of investigational product.
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End point type |
Primary
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End point timeframe |
Week 12 Follow-up Visit
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Notes [1] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point. Justification: Only descriptive data was planned to be analyzed for this endpoint because of the limited sample size (n=3), no summary statistics were planned to be provided, and the result of primary endpoint was planned to be listed individually for each patients. |
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No statistical analyses for this end point |
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End point title |
Number of Subjects With Hematologic Response at Week 24 | ||||||||||
End point description |
Hematologic response was considered to be “effective” when 2 or more of the following criteria were met: absolute neutrophil count >=500 per microliters, platelet count >=20,000 per microliters and reticulocyte count >=60,000 per microliters was observed. In this outcome measure, number of subjects with hematologic response classified as effective and not effective were reported. Improvement in counts that were dependent upon exogenously administered growth factors or transfusion, was not been considered as fulfilling response criteria. FAS included subjects were assigned to investigational product and who took at least 1 dose of investigational product.
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End point type |
Secondary
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End point timeframe |
Week 24 Follow-up Visit
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No statistical analyses for this end point |
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End point title |
Absolute Neutrophil Count at Day 4, Weeks 1, 2, 4, 6, 8, 10, 12, 24 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
End point description |
FAS included subjects who were assigned to investigational product and who took at least 1 dose of investigational product. Here, "n" signifies the number of subjects evaluable at specific time points.
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End point type |
Secondary
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End point timeframe |
Treatment: Day 4; Follow-up: Week 1, 2, 4, 6, 8, 10, 12, 24
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No statistical analyses for this end point |
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End point title |
Platelet Count at Day 4, Weeks 1, 2, 4, 6, 8, 10, 12, 24 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
End point description |
FAS included subjects who were assigned to investigational product and who took at least 1 dose of investigational product. Here, "n" signifies the number of subjects evaluable at specific time points.
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End point type |
Secondary
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End point timeframe |
Treatment: Day 4; Follow-up: Week 1, 2, 4, 6, 8, 10, 12, 24
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No statistical analyses for this end point |
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End point title |
Reticulocyte Count at Day 4, Weeks 1, 2, 4, 6, 8, 10, 12, 24 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
End point description |
FAS included subjects who were assigned to investigational product and who took at least 1 dose of investigational product. Here, "n" signifies the number of subjects evaluable at specific time points.
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End point type |
Secondary
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End point timeframe |
Treatment: Day 4; Follow-up: Week 1, 2, 4, 6, 8, 10, 12, 24
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No statistical analyses for this end point |
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End point title |
Number of Subjects who Survived During the Study | ||||||
End point description |
In this endpoint, number of subjects who survived during the study were observed. FAS included subjects who were assigned to investigational product and who took at least 1 dose of investigational product.
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End point type |
Secondary
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End point timeframe |
Screening (up to 28 days prior to Day 1 of treatment) up to 24 weeks of follow-up (approximately up to 28 weeks)
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No statistical analyses for this end point |
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End point title |
Number of Subjects With Transfusion Independence at Weeks 12 and 24 | ||||||||||
End point description |
Transfusion independence at Week 12 was defined as when subjects did not have any transfusion records from the time of the first dose of the investigational product at Day 1 to the day of Week 12 visit (inclusive). Transfusion independence at Week 24 was defined as when subjects did not have any transfusion records from the day after Week 12 visit to the day of Week 24 visit (inclusive). FAS included subjects who were assigned to investigational product and who took at least 1 dose of investigational product.
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End point type |
Secondary
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End point timeframe |
Week 12 Transfusion Independence: Day 1 of Treatment up to Week 12 Follow-up Visit (approximately 12 weeks); Week 24 Transfusion Independence: Day after Week 12 Follow-up visit to Week 24 Follow-up Visit (approximately 12 weeks)
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No statistical analyses for this end point |
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Adverse events information
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Timeframe for reporting adverse events |
Screening up to 24 weeks of follow-up (approximately up to 28 weeks)
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Assessment type |
Non-systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
24.0
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Reporting groups
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Reporting group title |
PF-06462700
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Reporting group description |
Subjects aged 2 years or >2 years with moderate and above severity aplastic anemia received PF-06462700 at a dose of 40 mg/kg/day, IV for 4 days. Subjects after treatment were followed up for 24 weeks. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 0% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Substantial protocol amendments (globally) |
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Were there any global substantial amendments to the protocol? No | |||
Interruptions (globally) |
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Were there any global interruptions to the trial? No | |||
Limitations and caveats |
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Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||
None reported |