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A Multicenter Extension Study of Taliglucerase Alfa in Adult Subjects With Gaucher Disease

A Multicenter Extension Study of Taliglucerase Alfa in Adult Subjects With Gaucher Disease

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01422187
Enrollment
19
Registered
2011-08-23
Start date
2011-08-31
Completion date
2014-09-30
Last updated
2023-04-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gaucher Disease

Keywords

enzyme replacement therapy

Brief summary

This is a multi-center trial to further extend the assessment of the safety and efficacy of taliglucerase alfa in adult subjects (≥18 years old) with Gaucher disease who have enrolled in Protocol PB-06-003. Subjects will continue to receive an intravenous (IV) infusion of taliglucerase alfa every two weeks. The duration of treatment will be a maximum of 21 months or until taliglucerase alfa is commercially available to the subject at the discretion of the Sponsor.

Interventions

Taliglucerase infusion every two weeks for 21 months

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Successfully completed Protocol PB-06-001 and enrolled in Protocol PB-06-003 * The subject signs an informed consent

Exclusion criteria

* Currently taking another investigational drug for any condition. * Presence of any medical, emotional, behavioral or psychological condition that in the judgment of the Investigator would interfere with the subject's compliance with the requirements of the study.

Design outcomes

Primary

MeasureTime frameDescription
Spleen Volume60 monthsSpleen volume measured by MRI

Secondary

MeasureTime frameDescription
Liver Volume60 monthsLiver volume by MRI
Platelet Count60 monthsPlatelet count measure annually
Hemoglobin60 monthsHemoglobin measure yearly

Participant flow

Participants by arm

ArmCount
Taliglucerase Alfa 30 Units/kg
Subjects randomized to receive 30 units/kg Taliglucerase alfa: Taliglucerase infusion every two weeks for 21 months
8
Taliglucerase Alfa 60 Units/kg
Subjects randomized to 60 units/kg Taliglucerase alfa: Taliglucerase infusion every two weeks for 21 months
9
Dose Adjusted
Subjects randomized to 30 units/kg but with dose increased Taliglucerase alfa: Taliglucerase infusion every two weeks for 21 months
2
Total19

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyLost to Follow-up010
Overall StudyPersonal reason100

Baseline characteristics

CharacteristicTaliglucerase Alfa 30 Units/kgTaliglucerase Alfa 60 Units/kgDose AdjustedTotal
Age, Continuous44.8 years
STANDARD_DEVIATION 13.4
39.9 years
STANDARD_DEVIATION 12
38.5 years
STANDARD_DEVIATION 0.7
41.8 years
STANDARD_DEVIATION 11.8
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
8 Participants9 Participants2 Participants19 Participants
Region of Enrollment
Chile
0 participants1 participants1 participants2 participants
Region of Enrollment
Israel
2 participants2 participants0 participants4 participants
Region of Enrollment
Italy
0 participants1 participants0 participants1 participants
Region of Enrollment
Mexico
3 participants2 participants0 participants5 participants
Region of Enrollment
Serbia
2 participants2 participants0 participants4 participants
Region of Enrollment
South Africa
0 participants0 participants1 participants1 participants
Region of Enrollment
Spain
1 participants1 participants0 participants2 participants
Sex: Female, Male
Female
4 Participants3 Participants1 Participants8 Participants
Sex: Female, Male
Male
4 Participants6 Participants1 Participants11 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
6 / 88 / 91 / 2
serious
Total, serious adverse events
0 / 82 / 90 / 2

Outcome results

Primary

Spleen Volume

Spleen volume measured by MRI

Time frame: 60 months

ArmMeasureGroupValue (MEAN)Dispersion
Taliglucerase Alfa 30 Units/kgSpleen VolumeBaseline2032.0 MillilitersStandard Error 454.9
Taliglucerase Alfa 30 Units/kgSpleen VolumeMonth 121522.6 MillilitersStandard Error 429.6
Taliglucerase Alfa 30 Units/kgSpleen VolumeMonth 241193.0 MillilitersStandard Error 320.2
Taliglucerase Alfa 30 Units/kgSpleen VolumeMonth 361068.7 MillilitersStandard Error 264.6
Taliglucerase Alfa 30 Units/kgSpleen VolumeMonth 481137.4 MillilitersStandard Error 314.6
Taliglucerase Alfa 30 Units/kgSpleen VolumeMonth 601019.2 MillilitersStandard Error 285.3
Taliglucerase Alfa 60 Units/kgSpleen VolumeMonth 60516.1 MillilitersStandard Error 54.5
Taliglucerase Alfa 60 Units/kgSpleen VolumeBaseline1960.0 MillilitersStandard Error 451.7
Taliglucerase Alfa 60 Units/kgSpleen VolumeMonth 36634.0 MillilitersStandard Error 71
Taliglucerase Alfa 60 Units/kgSpleen VolumeMonth 48526.8 MillilitersStandard Error 48.5
Taliglucerase Alfa 60 Units/kgSpleen VolumeMonth 121063.7 MillilitersStandard Error 280.7
Taliglucerase Alfa 60 Units/kgSpleen VolumeMonth 24744.9 MillilitersStandard Error 130.6
Dose AdjustedSpleen VolumeMonth 121677.9 MillilitersStandard Error 609.3
Dose AdjustedSpleen VolumeMonth 241536.3 MillilitersStandard Error 506.7
Dose AdjustedSpleen VolumeMonth 60919.9 MillilitersStandard Error 180.9
Dose AdjustedSpleen VolumeMonth 361256.6 MillilitersStandard Error 385
Dose AdjustedSpleen VolumeBaseline2321.7 MillilitersStandard Error 679.6
Dose AdjustedSpleen VolumeMonth 481070.0 MillilitersStandard Error 280.6
Secondary

Hemoglobin

Hemoglobin measure yearly

Time frame: 60 months

ArmMeasureGroupValue (MEAN)Dispersion
Taliglucerase Alfa 30 Units/kgHemoglobinMonth 3614.0 mg/dLStandard Error 0.5
Taliglucerase Alfa 30 Units/kgHemoglobinMonth 1213.9 mg/dLStandard Error 0.7
Taliglucerase Alfa 30 Units/kgHemoglobinMonth 6014.1 mg/dLStandard Error 0.9
Taliglucerase Alfa 30 Units/kgHemoglobinMonth 4813.7 mg/dLStandard Error 0.6
Taliglucerase Alfa 30 Units/kgHemoglobinMonth 2413.5 mg/dLStandard Error 0.8
Taliglucerase Alfa 30 Units/kgHemoglobinBaseline12.3 mg/dLStandard Error 0.7
Taliglucerase Alfa 60 Units/kgHemoglobinMonth 2414.1 mg/dLStandard Error 0.7
Taliglucerase Alfa 60 Units/kgHemoglobinMonth 3614.2 mg/dLStandard Error 0.8
Taliglucerase Alfa 60 Units/kgHemoglobinMonth 6013.9 mg/dLStandard Error 0.6
Taliglucerase Alfa 60 Units/kgHemoglobinBaseline11.6 mg/dLStandard Error 0.9
Taliglucerase Alfa 60 Units/kgHemoglobinMonth 4814.0 mg/dLStandard Error 0.8
Taliglucerase Alfa 60 Units/kgHemoglobinMonth 1214.2 mg/dLStandard Error 0.7
Dose AdjustedHemoglobinMonth 6014.3 mg/dLStandard Error 0.1
Dose AdjustedHemoglobinMonth 4814.5 mg/dLStandard Error 0.1
Dose AdjustedHemoglobinBaseline12.5 mg/dLStandard Error 0.9
Dose AdjustedHemoglobinMonth 1214.3 mg/dLStandard Error 0.9
Dose AdjustedHemoglobinMonth 2414.2 mg/dLStandard Error 0.2
Dose AdjustedHemoglobinMonth 3614.4 mg/dLStandard Error 0.1
Secondary

Liver Volume

Liver volume by MRI

Time frame: 60 months

ArmMeasureGroupValue (MEAN)Dispersion
Taliglucerase Alfa 30 Units/kgLiver VolumeMonth 122619.3 MillilitersStandard Error 266.4
Taliglucerase Alfa 30 Units/kgLiver VolumeBaseline3103.4 MillilitersStandard Error 324.7
Taliglucerase Alfa 30 Units/kgLiver VolumeMonth 362429.6 MillilitersStandard Error 229.6
Taliglucerase Alfa 30 Units/kgLiver VolumeMonth 602290.9 MillilitersStandard Error 233.6
Taliglucerase Alfa 30 Units/kgLiver VolumeMonth 482429.1 MillilitersStandard Error 283.2
Taliglucerase Alfa 30 Units/kgLiver VolumeMonth 242367.9 MillilitersStandard Error 212.8
Taliglucerase Alfa 60 Units/kgLiver VolumeBaseline2536.1 MillilitersStandard Error 170
Taliglucerase Alfa 60 Units/kgLiver VolumeMonth 122155.2 MillilitersStandard Error 104.8
Taliglucerase Alfa 60 Units/kgLiver VolumeMonth 241939.5 MillilitersStandard Error 101.5
Taliglucerase Alfa 60 Units/kgLiver VolumeMonth 362010.6 MillilitersStandard Error 143.5
Taliglucerase Alfa 60 Units/kgLiver VolumeMonth 481971.2 MillilitersStandard Error 179.3
Taliglucerase Alfa 60 Units/kgLiver VolumeMonth 602067.7 MillilitersStandard Error 188.9
Dose AdjustedLiver VolumeMonth 122048.0 MillilitersStandard Error 87.8
Dose AdjustedLiver VolumeMonth 601820.8 MillilitersStandard Error 196.5
Dose AdjustedLiver VolumeMonth 481792.2 MillilitersStandard Error 143.6
Dose AdjustedLiver VolumeBaseline2488.6 MillilitersStandard Error 206.2
Dose AdjustedLiver VolumeMonth 242064.0 MillilitersStandard Error 202.5
Dose AdjustedLiver VolumeMonth 361959.0 MillilitersStandard Error 140.5
Secondary

Platelet Count

Platelet count measure annually

Time frame: 60 months

ArmMeasureGroupValue (MEAN)Dispersion
Taliglucerase Alfa 30 Units/kgPlatelet CountBaseline70975 platelets/mm^3Standard Error 8700.6
Taliglucerase Alfa 30 Units/kgPlatelet CountMonth 1286613 platelets/mm^3Standard Error 11894
Taliglucerase Alfa 30 Units/kgPlatelet CountMonth 24103250 platelets/mm^3Standard Error 17008
Taliglucerase Alfa 30 Units/kgPlatelet CountMonth 36106775 platelets/mm^3Standard Error 13517
Taliglucerase Alfa 30 Units/kgPlatelet CountMonth 48100643 platelets/mm^3Standard Error 15314
Taliglucerase Alfa 30 Units/kgPlatelet CountMonth 60104986 platelets/mm^3Standard Error 18961
Taliglucerase Alfa 60 Units/kgPlatelet CountMonth 60180625 platelets/mm^3Standard Error 17062
Taliglucerase Alfa 60 Units/kgPlatelet CountBaseline70067 platelets/mm^3Standard Error 7695.5
Taliglucerase Alfa 60 Units/kgPlatelet CountMonth 36155667 platelets/mm^3Standard Error 16060
Taliglucerase Alfa 60 Units/kgPlatelet CountMonth 48184000 platelets/mm^3Standard Error 16688
Taliglucerase Alfa 60 Units/kgPlatelet CountMonth 12137556 platelets/mm^3Standard Error 18358
Taliglucerase Alfa 60 Units/kgPlatelet CountMonth 24168778 platelets/mm^3Standard Error 23717
Dose AdjustedPlatelet CountMonth 1288000 platelets/mm^3Standard Error 65000
Dose AdjustedPlatelet CountMonth 24101000 platelets/mm^3Standard Error 68000
Dose AdjustedPlatelet CountMonth 60103500 platelets/mm^3Standard Error 60500
Dose AdjustedPlatelet CountMonth 3694500 platelets/mm^3Standard Error 64500
Dose AdjustedPlatelet CountBaseline69500 platelets/mm^3Standard Error 42500
Dose AdjustedPlatelet CountMonth 48103000 platelets/mm^3Standard Error 53000

Source: ClinicalTrials.gov · Data processed: Mar 13, 2026