Gaucher Disease
Conditions
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
Study design
Eligibility
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
| Measure | Time frame | Description |
|---|---|---|
| Spleen Volume | 60 months | Spleen volume measured by MRI |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Liver Volume | 60 months | Liver volume by MRI |
| Platelet Count | 60 months | Platelet count measure annually |
| Hemoglobin | 60 months | Hemoglobin measure yearly |
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| 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 |
| Total | 19 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 | FG002 |
|---|---|---|---|---|
| Overall Study | Lost to Follow-up | 0 | 1 | 0 |
| Overall Study | Personal reason | 1 | 0 | 0 |
Baseline characteristics
| Characteristic | Taliglucerase Alfa 30 Units/kg | Taliglucerase Alfa 60 Units/kg | Dose Adjusted | Total |
|---|---|---|---|---|
| Age, Continuous | 44.8 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 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Asian | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Black or African American | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) More than one race | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Native Hawaiian or Other Pacific Islander | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Unknown or Not Reported | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) White | 8 Participants | 9 Participants | 2 Participants | 19 Participants |
| Region of Enrollment Chile | 0 participants | 1 participants | 1 participants | 2 participants |
| Region of Enrollment Israel | 2 participants | 2 participants | 0 participants | 4 participants |
| Region of Enrollment Italy | 0 participants | 1 participants | 0 participants | 1 participants |
| Region of Enrollment Mexico | 3 participants | 2 participants | 0 participants | 5 participants |
| Region of Enrollment Serbia | 2 participants | 2 participants | 0 participants | 4 participants |
| Region of Enrollment South Africa | 0 participants | 0 participants | 1 participants | 1 participants |
| Region of Enrollment Spain | 1 participants | 1 participants | 0 participants | 2 participants |
| Sex: Female, Male Female | 4 Participants | 3 Participants | 1 Participants | 8 Participants |
| Sex: Female, Male Male | 4 Participants | 6 Participants | 1 Participants | 11 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk |
|---|---|---|---|
| deaths Total, all-cause mortality | — / — | — / — | — / — |
| other Total, other adverse events | 6 / 8 | 8 / 9 | 1 / 2 |
| serious Total, serious adverse events | 0 / 8 | 2 / 9 | 0 / 2 |
Outcome results
Spleen Volume
Spleen volume measured by MRI
Time frame: 60 months
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Taliglucerase Alfa 30 Units/kg | Spleen Volume | Baseline | 2032.0 Milliliters | Standard Error 454.9 |
| Taliglucerase Alfa 30 Units/kg | Spleen Volume | Month 12 | 1522.6 Milliliters | Standard Error 429.6 |
| Taliglucerase Alfa 30 Units/kg | Spleen Volume | Month 24 | 1193.0 Milliliters | Standard Error 320.2 |
| Taliglucerase Alfa 30 Units/kg | Spleen Volume | Month 36 | 1068.7 Milliliters | Standard Error 264.6 |
| Taliglucerase Alfa 30 Units/kg | Spleen Volume | Month 48 | 1137.4 Milliliters | Standard Error 314.6 |
| Taliglucerase Alfa 30 Units/kg | Spleen Volume | Month 60 | 1019.2 Milliliters | Standard Error 285.3 |
| Taliglucerase Alfa 60 Units/kg | Spleen Volume | Month 60 | 516.1 Milliliters | Standard Error 54.5 |
| Taliglucerase Alfa 60 Units/kg | Spleen Volume | Baseline | 1960.0 Milliliters | Standard Error 451.7 |
| Taliglucerase Alfa 60 Units/kg | Spleen Volume | Month 36 | 634.0 Milliliters | Standard Error 71 |
| Taliglucerase Alfa 60 Units/kg | Spleen Volume | Month 48 | 526.8 Milliliters | Standard Error 48.5 |
| Taliglucerase Alfa 60 Units/kg | Spleen Volume | Month 12 | 1063.7 Milliliters | Standard Error 280.7 |
| Taliglucerase Alfa 60 Units/kg | Spleen Volume | Month 24 | 744.9 Milliliters | Standard Error 130.6 |
| Dose Adjusted | Spleen Volume | Month 12 | 1677.9 Milliliters | Standard Error 609.3 |
| Dose Adjusted | Spleen Volume | Month 24 | 1536.3 Milliliters | Standard Error 506.7 |
| Dose Adjusted | Spleen Volume | Month 60 | 919.9 Milliliters | Standard Error 180.9 |
| Dose Adjusted | Spleen Volume | Month 36 | 1256.6 Milliliters | Standard Error 385 |
| Dose Adjusted | Spleen Volume | Baseline | 2321.7 Milliliters | Standard Error 679.6 |
| Dose Adjusted | Spleen Volume | Month 48 | 1070.0 Milliliters | Standard Error 280.6 |
Hemoglobin
Hemoglobin measure yearly
Time frame: 60 months
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Taliglucerase Alfa 30 Units/kg | Hemoglobin | Month 36 | 14.0 mg/dL | Standard Error 0.5 |
| Taliglucerase Alfa 30 Units/kg | Hemoglobin | Month 12 | 13.9 mg/dL | Standard Error 0.7 |
| Taliglucerase Alfa 30 Units/kg | Hemoglobin | Month 60 | 14.1 mg/dL | Standard Error 0.9 |
| Taliglucerase Alfa 30 Units/kg | Hemoglobin | Month 48 | 13.7 mg/dL | Standard Error 0.6 |
| Taliglucerase Alfa 30 Units/kg | Hemoglobin | Month 24 | 13.5 mg/dL | Standard Error 0.8 |
| Taliglucerase Alfa 30 Units/kg | Hemoglobin | Baseline | 12.3 mg/dL | Standard Error 0.7 |
| Taliglucerase Alfa 60 Units/kg | Hemoglobin | Month 24 | 14.1 mg/dL | Standard Error 0.7 |
| Taliglucerase Alfa 60 Units/kg | Hemoglobin | Month 36 | 14.2 mg/dL | Standard Error 0.8 |
| Taliglucerase Alfa 60 Units/kg | Hemoglobin | Month 60 | 13.9 mg/dL | Standard Error 0.6 |
| Taliglucerase Alfa 60 Units/kg | Hemoglobin | Baseline | 11.6 mg/dL | Standard Error 0.9 |
| Taliglucerase Alfa 60 Units/kg | Hemoglobin | Month 48 | 14.0 mg/dL | Standard Error 0.8 |
| Taliglucerase Alfa 60 Units/kg | Hemoglobin | Month 12 | 14.2 mg/dL | Standard Error 0.7 |
| Dose Adjusted | Hemoglobin | Month 60 | 14.3 mg/dL | Standard Error 0.1 |
| Dose Adjusted | Hemoglobin | Month 48 | 14.5 mg/dL | Standard Error 0.1 |
| Dose Adjusted | Hemoglobin | Baseline | 12.5 mg/dL | Standard Error 0.9 |
| Dose Adjusted | Hemoglobin | Month 12 | 14.3 mg/dL | Standard Error 0.9 |
| Dose Adjusted | Hemoglobin | Month 24 | 14.2 mg/dL | Standard Error 0.2 |
| Dose Adjusted | Hemoglobin | Month 36 | 14.4 mg/dL | Standard Error 0.1 |
Liver Volume
Liver volume by MRI
Time frame: 60 months
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Taliglucerase Alfa 30 Units/kg | Liver Volume | Month 12 | 2619.3 Milliliters | Standard Error 266.4 |
| Taliglucerase Alfa 30 Units/kg | Liver Volume | Baseline | 3103.4 Milliliters | Standard Error 324.7 |
| Taliglucerase Alfa 30 Units/kg | Liver Volume | Month 36 | 2429.6 Milliliters | Standard Error 229.6 |
| Taliglucerase Alfa 30 Units/kg | Liver Volume | Month 60 | 2290.9 Milliliters | Standard Error 233.6 |
| Taliglucerase Alfa 30 Units/kg | Liver Volume | Month 48 | 2429.1 Milliliters | Standard Error 283.2 |
| Taliglucerase Alfa 30 Units/kg | Liver Volume | Month 24 | 2367.9 Milliliters | Standard Error 212.8 |
| Taliglucerase Alfa 60 Units/kg | Liver Volume | Baseline | 2536.1 Milliliters | Standard Error 170 |
| Taliglucerase Alfa 60 Units/kg | Liver Volume | Month 12 | 2155.2 Milliliters | Standard Error 104.8 |
| Taliglucerase Alfa 60 Units/kg | Liver Volume | Month 24 | 1939.5 Milliliters | Standard Error 101.5 |
| Taliglucerase Alfa 60 Units/kg | Liver Volume | Month 36 | 2010.6 Milliliters | Standard Error 143.5 |
| Taliglucerase Alfa 60 Units/kg | Liver Volume | Month 48 | 1971.2 Milliliters | Standard Error 179.3 |
| Taliglucerase Alfa 60 Units/kg | Liver Volume | Month 60 | 2067.7 Milliliters | Standard Error 188.9 |
| Dose Adjusted | Liver Volume | Month 12 | 2048.0 Milliliters | Standard Error 87.8 |
| Dose Adjusted | Liver Volume | Month 60 | 1820.8 Milliliters | Standard Error 196.5 |
| Dose Adjusted | Liver Volume | Month 48 | 1792.2 Milliliters | Standard Error 143.6 |
| Dose Adjusted | Liver Volume | Baseline | 2488.6 Milliliters | Standard Error 206.2 |
| Dose Adjusted | Liver Volume | Month 24 | 2064.0 Milliliters | Standard Error 202.5 |
| Dose Adjusted | Liver Volume | Month 36 | 1959.0 Milliliters | Standard Error 140.5 |
Platelet Count
Platelet count measure annually
Time frame: 60 months
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Taliglucerase Alfa 30 Units/kg | Platelet Count | Baseline | 70975 platelets/mm^3 | Standard Error 8700.6 |
| Taliglucerase Alfa 30 Units/kg | Platelet Count | Month 12 | 86613 platelets/mm^3 | Standard Error 11894 |
| Taliglucerase Alfa 30 Units/kg | Platelet Count | Month 24 | 103250 platelets/mm^3 | Standard Error 17008 |
| Taliglucerase Alfa 30 Units/kg | Platelet Count | Month 36 | 106775 platelets/mm^3 | Standard Error 13517 |
| Taliglucerase Alfa 30 Units/kg | Platelet Count | Month 48 | 100643 platelets/mm^3 | Standard Error 15314 |
| Taliglucerase Alfa 30 Units/kg | Platelet Count | Month 60 | 104986 platelets/mm^3 | Standard Error 18961 |
| Taliglucerase Alfa 60 Units/kg | Platelet Count | Month 60 | 180625 platelets/mm^3 | Standard Error 17062 |
| Taliglucerase Alfa 60 Units/kg | Platelet Count | Baseline | 70067 platelets/mm^3 | Standard Error 7695.5 |
| Taliglucerase Alfa 60 Units/kg | Platelet Count | Month 36 | 155667 platelets/mm^3 | Standard Error 16060 |
| Taliglucerase Alfa 60 Units/kg | Platelet Count | Month 48 | 184000 platelets/mm^3 | Standard Error 16688 |
| Taliglucerase Alfa 60 Units/kg | Platelet Count | Month 12 | 137556 platelets/mm^3 | Standard Error 18358 |
| Taliglucerase Alfa 60 Units/kg | Platelet Count | Month 24 | 168778 platelets/mm^3 | Standard Error 23717 |
| Dose Adjusted | Platelet Count | Month 12 | 88000 platelets/mm^3 | Standard Error 65000 |
| Dose Adjusted | Platelet Count | Month 24 | 101000 platelets/mm^3 | Standard Error 68000 |
| Dose Adjusted | Platelet Count | Month 60 | 103500 platelets/mm^3 | Standard Error 60500 |
| Dose Adjusted | Platelet Count | Month 36 | 94500 platelets/mm^3 | Standard Error 64500 |
| Dose Adjusted | Platelet Count | Baseline | 69500 platelets/mm^3 | Standard Error 42500 |
| Dose Adjusted | Platelet Count | Month 48 | 103000 platelets/mm^3 | Standard Error 53000 |