Clinical Trial Details
— Status: Completed
Administrative data
| NCT number |
NCT04396639 |
| Other study ID # |
B1831097 |
| Secondary ID |
2020-004570-21 |
| Status |
Completed |
| Phase |
Phase 4
|
| First received |
|
| Last updated |
|
| Start date |
January 25, 2020 |
| Est. completion date |
September 24, 2020 |
Study information
| Verified date |
April 2021 |
| Source |
Pfizer |
| Contact |
n/a |
| Is FDA regulated |
No |
| Health authority |
|
| Study type |
Interventional
|
Clinical Trial Summary
Moroctocog-alfa (AF-CC) is indicated for the control and prevention of hemorrhagic episodes
and for routine and surgical prophylaxis in patients with hemophilia A (congenital factor
VIII deficiency or classic hemophilia). The current single country, multi-centric, open
label, non-randomized pragmatic clinical trial is a post-approval study to fulfill the
Central Drugs Standard Control Organization (CDSCO) request for supplementary information
relating to the use of moroctocog-alfa (AF-CC) in Indian subjects with hemophilia A.
The primary objective of study is to study the safety of moroctocog alfa (AF-CC) when
administered for prophylaxis with respect to incidence of FVIII inhibitor development. The
secondary objectives are to evaluate the incidence of adverse events (AEs) and serious
adverse events (SAEs) in subjects receiving moroctocog alfa (AF-CC) prophylaxis, to evaluate
the efficacy of moroctocog alfa (AF-CC) during a prophylaxis regimen, to evaluate the total
annualized consumption of moroctocog alfa (AF-CC) by subjects following a prophylaxis
regimen, to evaluate the efficacy of moroctocog alfa (AF-CC) for the treatment of
breakthrough bleeding episodes (on-demand treatment) while following a prophylaxis regimen.
Fifty male subjects aged >/= 12 years to ≤65 years with moderate or severe hemophilia A will
be enrolled in the study. The subjects will be selected based on protocol specified
eligibility criteria. The overall treatment duration for each subject will be up to 8 weeks,
with up to a 4-week screening period and a subsequent post-treatment 28-day safety
observation period. Subjects are requested to continue in the study until 24 exposure days
(EDs) or a period of up to 8 weeks on moroctocog alfa (AF-CC) treatment had occurred
(whichever occurs first). Efficacy and safety assessments will be performed as specified in
the protocol.
Description:
Moroctocog-alfa (AF-CC) is indicated in India for the control and prevention of hemorrhagic
episodes and for routine and surgical prophylaxis in patients with hemophilia A (congenital
factor VIII deficiency or classic hemophilia). The current protocol outlines a post-approval
study to fulfill the Central Drugs Standard Control Organization (CDSCO) written request for
supplementary information relating to the use of moroctocog-alfa (AF-CC) in Indian subjects
with hemophilia A. The additional information will include safety and efficacy of
moroctocog-alfa (AF-CC) in Indian subjects with a diagnosis of congenital moderate or severe
hemophilia A (FVIII:C ≤5%). The primary objective is to study the safety of moroctocog alfa
(AF-CC) when administered for prophylaxis with respect to incidence of FVIII inhibitor
development. The secondary objectives are to evaluate the incidence of adverse events (AEs)
and serious adverse events (SAEs) in subjects receiving moroctocog alfa (AF-CC) prophylaxis,
to evaluate the efficacy of moroctocog alfa (AF-CC) during a prophylaxis regimen, to evaluate
the total annualized consumption of moroctocog alfa (AF-CC) by subjects following a
prophylaxis regimen and to evaluate the efficacy of moroctocog alfa (AF-CC) for the treatment
of breakthrough bleeding episodes (on-demand treatment) while following a prophylaxis
regimen. The primary endpoint will be the proportion of subjects who develop FVIII inhibitor
(≥0.6 BU/mL), as confirmed by central laboratory testing, during the course of the study. The
secondary endpoints include assessment of incidence of AEs, incidence of SAEs, Annualized
bleeding rate (ABR) during prophylaxis, Annualized total factor consumption (TFC) in
international units (IU) and annualized TFC by weight (IU/kg) of moroctocog alfa (AF-CC)
measured during the up to 8 weeks of treatment, by reason for infusion and total units
consumed (across all reasons) and number of moroctocog alfa (AF-CC) infusions used to treat
each bleed.
This study is a single-country, multicenter, open-label, interventional study which will be
conducted in India. At least 50 male subjects aged ≥12 years to ≤65 years with moderate or
severe hemophilia A (FVIII:C ≤5%) who have had at least 50 exposure days (EDs) to
FVIII-containing products will be enrolled in the study. The overall treatment duration for
each subject will be up to 8 weeks, with up to a 4-week screening period and a subsequent
post-treatment 28-day safety observation period. Subjects are requested to continue in the
study until 24 exposure days (EDs) or a period of up to 8 weeks on moroctocog alfa (AF-CC)
treatment had occurred (whichever occurs first). Subjects will be treated with a dose and
regimen of prophylaxis in accordance with the Local Product Development.
The following subjects will be included in this study:
1. Male subjects ≥12 years to ≤65 years with a diagnosis of congenital moderate or severe
hemophilia A (FVIII:C ≤5%).
2. Documented history of at least 50 exposure days (EDs) to FVIII-containing products.
3. Evidence of a personally signed and dated informed consent document indicating that the
subject (or a legally acceptable representative, parent(s)/legal guardian) has been
informed of all pertinent aspects of the study. For minors under the age of legal
consent in India, assent of the participating child needs to be documented for the age
range 12 to 18 in addition to the parental informed consent.
Subjects presenting with any of the following will not be included in the study:
1. Prior history of inhibitor to FVIII or positive inhibitor testing (≥0.6 BU/mL) during
Screening. Clinical signs or symptoms of decreased response to FVIII.
2. Known hypersensitivity to the active substance or any of the excipients.
3. Known allergic reaction to hamster proteins.
4. Presence of any bleeding disorder in addition to hemophilia A.
5. Participation in other studies involving investigational drug(s) (Phases 1-4) within 30
days before the current study begins and/or during study participation.
6. Planned surgery within 6 months from the start of the study.
7. Unsuitable to participate in study for any other reason as assessed by the investigator;
including any disorder, except for conditions associated with hemophilia A, which in the
investigator's opinion might jeopardize subject's safety or compliance with the
protocol.
8. Subjects (or a legally acceptable representative) is not able to understand study
documents and study procedure.
9. Immunocompromised subjects due to human immunodeficiency virus (HIV) infection (defined
as viral load above or equal to 100,000 copies/mL; and for HIV+ subjects: cluster of
differentiation 4 positive (CD4+) lymphocyte count below or equal to 200/μL). HIV status
and CD4+ lymphocyte count results may be obtained at screening or from available medical
records; results must be not older than 6 months prior to screening.
10. Subjects who are investigational site staff members directly involved in the conduct of
the study and their family members, site staff members otherwise supervised by the
Investigator, subjects who have been previously enrolled into the study, or subjects who
are Pfizer employees directly involved in the conduct of the study.
11. Planned use of any non-study medication for treatment of hemophilia (eg, other factor
replacement agents, bypassing agents, or non-factor treatments [such as anti-tissue
factor pathway inhibitors]).
The investigator will assign subject identification numbers sequentially to the subjects as
they are screened for the study. This identification number will be retained throughout the
study. Pfizer will provide the investigators with a sufficient amount of moroctocog alfa
(AF-CC). Once moroctocog alfa (AF-CC) is dispensed to a subject it must not be re-dispensed
to another subject. The product should be prepared, reconstituted, and used in accordance
with procedures provided by their physicians. Moroctocog alfa (AF-CC) will be administered by
the investigator or a delegate at Visits 2 and 3. For administration between study visits,
the product will be administered in accordance with procedures provided by their physicians.
Subjects or caregivers/parents of subjects will be trained on how to administer moroctocog
alfa (AF-CC) away from the study site, as applicable. Moroctocog alfa (AF-CC) should be
administered prophylactically in previously treated patients at a dose of 30±5 IU/kg given 3
times weekly. For on-demand treatment, the amount to be administered and the frequency of
administration should always be tailored to the clinical effectiveness in individual
subjects. In the interest of simplifying dosing and minimizing potential waste, a dosing
variance of ±5 IU/kg is permitted throughout the study.
The investigator, or an approved representative, eg, study coordinator, will ensure that all
investigational products, including any comparative agents and/or marketed products are
stored in a secured area with controlled access under recommended storage conditions and in
accordance with applicable regulatory requirements. Moroctocog alfa (AF-CC) should be stored
in its original container and in accordance with the storage conditions stated on the label.
The reconstituted solution of moroctocog alfa (AF-CC) may be stored at room temperature prior
to infusion. The reconstituted solution of moroctocog alfa (AF-CC) does not contain
preservative and should be infused within 3 hours after reconstitution. The investigator's
site must maintain adequate records documenting the receipt, use, loss, or other disposition
of the drug supplies. When investigational product is taken home by the subject, any unused
products must be returned to the investigator by the subject at Visit 4. All used and unused
vials of moroctocog alfa (AF-CC) and unused diluent syringes will be used for investigational
product accountability. Administration of moroctocog alfa (AF-CC) by subjects or their
caregivers away from the study site should be captured in the Subject Infusion Log. The
monitor will review drug accountability during routine monitoring visits. Drug accountability
will be done at all study visits after Day 1 until Visit 4. Any discrepancies must be
investigated and their resolution documented.
The use of permitted concomitant medication must be in accordance with the study drug label.
The use of concomitant treatments will be recorded throughout the study.
Study visits will include screening visit( Visit 1- within 28 Days prior to Day 1), Visit 2
(Day 1), Visit 3 (Day 24-32), Visit 4(Day 52-60) and End of Study Visit (Day 80-88 or
earlier) Subjects may withdraw from the study at any time at their own request, or they may
be withdrawn at any time at the discretion of the investigator. Any subject who uses
non-study medication for the treatment of hemophilia (eg, other factor replacement agents,
bypassing agents, or non-factor treatments [such as anti-tissue factor pathway inhibitors])
will be considered to have a protocol violation and will be withdrawn from the study. The
exception to this would be for subjects who require non-study treatment for a bleed away from
the study site. This would be considered a protocol deviation rather than a protocol
violation that would not require withdrawal from the study. Subjects will be withdrawn from
the study if their central laboratory result for inhibitor assessment at screening does not
confirm eligibility per the local laboratory result.
The safety assessments throughout the study will include collection of AEs, laboratory safety
testing, vital signs, and physical examination at the time points specified in protocol, but
can be conducted at other time points at the investigator's discretion. All observed or
volunteered AEs regardless of suspected causal relationship to the investigational product(s)
will be reported as described in the protocol. The efficacy assessments include Total Factor
VIII Consumption and bleeds including, Annualized Bleeding Rate During Prophylaxis, Number of
Moroctocog alfa (AF-CC) Infusions Used to Treat Each Bleed, Annualized Total Factor
Consumption of Moroctocog Alfa (AF-CC). All data will be collected in the case report form.
