Lysosomal Acid Lipase Deficiency Clinical Trial
Official title:
A Multi-Center, Open-Label Study of Sebelipase Alfa in Patients With Lysosomal Acid Lipase Deficiency
Verified date | November 2019 |
Source | Alexion Pharmaceuticals |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
This study evaluated the safety and efficacy of sebelipase alfa in a broad population of participants with lysosomal acid lipase deficiency (LAL-D).
Status | Completed |
Enrollment | 31 |
Est. completion date | December 28, 2017 |
Est. primary completion date | December 28, 2017 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 8 Months and older |
Eligibility |
Key Inclusion Criteria: 1. Participant was >8 months of age at the time of dosing. 2. Confirmation of LAL-D diagnosis as determined by the central laboratory or, for participants with prior hematopoietic stem cell transplant or liver transplant, historical enzyme activity or molecular genetic testing confirming a diagnosis of LAL-D. 3. Participants >8 months but <4 years of age at Screening had at least 1 of the following documented clinical manifestations of LAL-D: - Dyslipidemia - Elevated transaminases - Impaired growth - Suspected malabsorption - Other clinical manifestation of LAL-D 4. Participants =4 years of age at Screening had at least 1 of the following documented clinical manifestations of LAL-D: - Evidence of advanced liver disease - Histologically confirmed disease recurrence in participants with past liver or hematopoietic transplant - Persistent dyslipidemia - Suspected malabsorption - Other clinical manifestation of LAL-D Key Exclusion Criteria: 1. Participant had known causes of active liver disease other than LAL-D, which had not been adequately treated. 2. Participant received a hematopoietic stem cell or liver transplant <2 years from the time of dosing. 3. Participant with co-morbidities other than complications due to LAL-D, which were irreversible or associated with a high mortality risk within 6 months or would interfere with study compliance or data interpretation. |
Country | Name | City | State |
---|---|---|---|
n/a |
Lead Sponsor | Collaborator |
---|---|
Alexion Pharmaceuticals |
United States, Australia, Belgium, Brazil, Canada, Croatia, Denmark, Germany, Italy, Mexico, Netherlands, Russian Federation, Spain, Turkey, United Kingdom,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Participants Experiencing Severe Treatment-emergent Adverse Events (TEAEs) | The number of participants experiencing severe TEAEs is presented for participants who received sebelipase alfa in this open-label study. Adverse events (AEs) information was obtained at each scheduled contact with the participant (or participant's parent or legal guardian). An AE was defined as any untoward medical occurrence that did not require a causal relationship with study drug administration. An AE could have been any unfavorable and unintended sign, symptom, or disease temporally associated with the use of the study drug, whether or not considered related to the study drug. Pre-existing conditions that worsened in severity during the study were reported as AEs. A summary of all serious and other non-serious AEs regardless of causality is located in the Reported AE module. Severity assessed using Clinical Data Interchange Standards Consortium Study Data Tabulation Model standard terminology v3.1.1. Data presented only according to age group, not dose of study drug received. | Screening, Week 144 | |
Secondary | Percent Change In Serum Lipids From Baseline To Week 144 | The effect of sebelipase alfa on lipid metabolism was evaluated by measuring the change from baseline to Week 144 in 4 serum lipids: low-density lipoprotein cholesterol (LDL-C); high-density lipoprotein cholesterol (HDL-C); non-HDL-C; triglycerides. Blood samples for these clinical laboratory tests were collected at scheduled time points and analyzed by a central laboratory. | Baseline, Week 144 | |
Secondary | Participants Testing Positive For Anti-drug Antibodies (ADAs) | The impact of ADAs on the safety and immunogenicity of sebelipase alfa was evaluated by testing for ADAs in participants who received sebelipase alfa in this open-label study. Blood samples for assessment were collected prior to study infusions at Week 2, Week 4, Week 8, Week 12, and every 12 weeks thereafter. Participants testing positive for ADAs were also tested for the presence of neutralizing antibodies that inhibited sebelipase alfa enzyme activity and/or cellular uptake. Any participant experiencing a moderate or severe infusion-associated reaction (IAR) was to have an additional assessment of ADAs at the next study visit (prior to study drug infusion); these participants were to also have serum samples collected at 1 to 2 hours after IAR onset and at the next study visit (prior to study drug infusion) for analysis of serum tryptase. The count of participants who became ADA positive and who tested positive for neutralizing antibodies are presented. | Week 144 | |
Secondary | Percent Change In Body Mass Index (BMI)-For-Age Percentile From Baseline To Week 144 In Pediatric Participants | To evaluate the effects of sebelipase alfa on growth parameters in pediatric participants (=18 years old) presenting with evidence of growth delay, the percent change in the anthropometric parameter of BMI-for-age percentile from Baseline to Week 144 is reported. Anthropometric parameters were plotted on standard growth curves. When possible, historical data on growth parameters was also incorporated into the analyses. Percentiles and Z-scores for BMI-for-age were determined using standard growth charts appropriate to a participant's age on the date of the assessment: the World Health Organization standard growth chart for participants =2 years of age and the Centers for Disease Control standard growth chart for participants >2 years of age. | Baseline, Week 144 | |
Secondary | Shift In Child-Pugh Status From Baseline To Week 144 | In order to evaluate the effects of sebelipase alfa on liver function, the number of participants with a shift in Child-Pugh status from Baseline to Week 144 is reported. The status is based on the Child-Pugh score, which is used in clinical practice to assess prognosis in individuals with chronic liver disease. Laboratory data were used in derivation of the score by summing individual scores (scored 1-3, with 3 indicating most severe) from clinical laboratory test results and physical examinations, including total serum bilirubin, serum albumin, prothrombin time, ascites, and hepatic encephalopathy. The total score was used to determine the Child-Pugh status, reported as Class A (score of 5 or 6), Class B (score of 7 to 9), or Class C (score of 10 to 15). Higher scores and higher categories represented a worse outcome. Data reported as 1 of 2 types of shifts in class: No Change from Baseline; Decline from Baseline. | Baseline, Week 144 |
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