- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01510028
Multicenter Study of HGT-1110 Administered Intrathecally in Children With Metachromatic Leukodystrophy (MLD) (IDEAMLD)
A Phase I/II Multicenter Open-label Dose Escalation Study of HGT-1110 Administered Intrathecally in Children With Metachromatic Leukodystrophy
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Metachromatic leukodystrophy (MLD) is an inherited, autosomal recessive disorder of lipid metabolism characterized by deficient activity of the lysosomal enzyme, arylsulfatase A (ASA). MLD is a rare disease that occurs in most parts of the world. The estimated overall incidence of the disease in the western world is approximately 1 in 100,000 live births that varies by geographic location. There are no approved therapies for MLD.
This is a multicenter, open-label, dose-escalation study designed to evaluate the safety of up to 3 dose levels (10, 30, or 100 mg) of HGT-1110 administered via an intrathecal drug delivery device (IDDD) every other week (EOW) for a total of 38 weeks (20 injections, Weeks 0 to 38) to children with MLD. The study also includes the assessment of HGT-1110 drug product produced with a revised drug substance manufacturing process (referred to as Process B) in a fourth cohort (Cohort 4). Approximately 24 patients will be enrolled and will receive treatment of HGT-1110. Patients will be sequentially enrolled into 4 dose cohorts, approximately 6 patients each. Patient enrollment will be staggered in this study to facilitate adequate safety monitoring per dose cohort.
Study Type
Enrollment (Actual)
Phase
- Phase 2
- Phase 1
Contacts and Locations
Study Locations
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Westmead, Australia, 2145
- The Children's Hospital at Westmead
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København, Denmark, 2100
- Rigshospitalet
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Ile-de-France
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Le Kremlin Bicetre, Ile-de-France, France, 94275
- Hopital de Bicetre
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Baden-Wuerttemberg
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Tubingen, Baden-Wuerttemberg, Germany, 72076
- Center for Pediatric Clinical Studies
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Suita, Japan, 565-0871
- Osaka University Hospital
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion
For Cohorts 1-4:
Confirmed diagnosis of metachromatic leukodystrophy by both:
- Arylsulfatase A (ASA) deficiency by assay in leukocytes AND
- Elevated sulfatide in urine
Appearance of the first symptoms of disease at or before 30 months of age.
For Cohorts 1-3 only:
- Ambulatory at the time of screening. The minimum level of function required to meet this criterion is defined as the ability to walk forward 10 steps with one hand held.
The patient is less than 12 years of age at the time of screening.
For Cohort 4 only:
3.1 Minimum motor function requirements:
- A total GMFM-88 (percent) score ≥40 at the screening examination and a total GMFM-88 (percent) score ≥35 at the baseline examination, AND
- GMFM-88 Dimension E: Walking, Running & Jumping, item 68 ("walk forward 10 steps with one hand held") score of at least 1 "initiates" at the screening and baseline examinations (if applicable).
4.1 The patient is less than 8 years of age at the time of screening.
For Cohorts 1-4:
- Neurological signs of MLD must be present at the screening examination.
- The patient and his/her parent/representative(s) must have the ability to comply with the clinical protocol.
- Patient's parent(s) or legally authorized representative(s) must provide written informed consent prior to performing any study-related activities. Study-related activities are any procedures that would not have been performed during normal management of the patient.
Exclusion Criteria:
Patients will be excluded from the study if there is evidence or history of any of the following criteria at screening:
For Cohorts 1-4:
- History of hematopoietic stem cell transplantation (HSCT).
- The patient has any known or suspected hypersensitivity to anesthesia or is thought to be at an unacceptably high risk for anesthesia due to airway compromise or other conditions.
- Any other medical condition, serious intercurrent illness, or extenuating circumstance that, in the opinion of the Investigator, would preclude participation in the trial.
- The patient is enrolled in another clinical study that involves the use of any investigational product (drug or device) other than HGT-1110 or the IDDD used in this study within 30 days prior to study enrollment or at any time during the study.
- The patient is pregnant or breastfeeding.
- The patient has a condition that is contraindicated as described in the SOPH-A-PORT
Mini S IDDD Instructions for Use (IFU), including:
- The patient has had, or may have, an allergic reaction to the materials of construction of the SOPH-A-PORT Mini S device.
- The patient's body size is too small to support the size of the SOPH-A-PORT Mini S Access Port, as judged by the Investigator.
- The patient has a known or suspected local or general infection.
- The patient is at risk of abnormal bleeding due to a medical condition or therapy.
- The patient has one or more spinal abnormalities that could complicate safe implantation or fixation.
- The patient has a functioning CSF shunt device.
- The patient has shown an intolerance to an implanted device.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: Cohort 1 (10 mg)
6 patients treated with HGT-1110 10 mg EOW by IT injection
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6 patients treated with HGT-1110 EOW by IT injection
Other Names:
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Experimental: Cohort 2 (30 mg)
6 patients treated with HGT-1110 30 mg EOW by IT injection
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6 patients treated with HGT-1110 EOW by IT injection
Other Names:
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Experimental: Cohort 3 (100 mg)
6 patients treated with HGT-1110 100 mg EOW by IT injection
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6 patients treated with HGT-1110 EOW by IT injection
Other Names:
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Experimental: Cohort 4 (100 mg)
6 patients treated with HGT-1110 100 mg EOW by IT injection
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6 patients treated with HGT-1110 EOW by IT injection
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Number of Participants With Treatment Emergent Adverse Events (TEAEs) by Type and Severity
Time Frame: From start of study treatment up to Week 42
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An adverse event (AE) was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship.
TEAEs were defined as all AEs that occurred at or after the first dose of the investigational product or device implant surgery (whichever occurred earlier) and through the last follow-up date.
Drug-related and device-related types of TEAEs were analyzed and reported.
The severity of AEs was assessed by the investigator using the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Version 4.0 grading scale.
Severity of all AEs or SAEs was recorded as grade 1, 2, 3, 4, or 5 corresponding, respectively, to a severity of mild, moderate, severe, life-threatening, or fatal.
Here SDI refers to surgical device implantation.
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From start of study treatment up to Week 42
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Number of Participants With Clinical Laboratory Abnormalities Reported as Treatment Emergent Adverse Events (TEAEs)
Time Frame: From start of study treatment up to Week 40
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Clinical laboratory test included serum chemistry, hematology and urinalysis.
Clinical laboratory abnormalities were recorded and reported as TEAE.
An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship.
TEAEs were defined as all AEs that occurred at or after the first dose of the investigational product or device implant surgery (whichever occurred earlier) and through the last follow-up date.
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From start of study treatment up to Week 40
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Number of Participants With Vital Sign Abnormalities Reported as Treatment Emergent Adverse Events (TEAEs)
Time Frame: From start of study treatment up to Week 40
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Vital sign assessments included blood pressure, heart rate, respiratory rate and body temperature.
Vital sign abnormalities were recorded and reported as TEAE.
An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship.
TEAEs were defined as all AEs that occurred at or after the first dose of the investigational product or device implant surgery (whichever occurred earlier) and through the last follow-up date.
Vital sign abnormalities included pyrexia which was considered as TEAE and was reported.
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From start of study treatment up to Week 40
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Number of Participants With Electrocardiogram (ECG) Abnormalities Reported as Treatment Emergent Adverse Events (TEAEs)
Time Frame: From start of study treatment up to Week 40
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12-lead ECG was recorded and measured with the participant in rested supine position for at least 10 minutes.
ECG abnormalities were recorded and reported as TEAE.
An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship.
TEAEs were defined as all AEs that occurred at or after the first dose of the investigational product or device implant surgery (whichever occurred earlier) and through the last follow-up date.
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From start of study treatment up to Week 40
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Number of Participants With Clinically Significant Abnormalities in Physical Examination Reported as Treatment Emergent Adverse Events (TEAE)
Time Frame: From start of study treatment up to Week 40
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Complete physical examination included evaluation of the port and catheter track.
Height or length and weight were recorded and used to calculate growth.
Body weight and height measurements were used to calculate the body mass index (BMI).
Head circumference was measured in uniform manner for all participants.
Clinical significance was defined as any variation in physical findings that had medical relevance resulting in an alteration in medical care.
Clinically significant abnormalities related to physical examination were recorded and reported as TEAE.
An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship.
TEAEs were defined as all AEs that occurred at or after the first dose of the investigational product or device implant surgery (whichever occurred earlier) and through the last follow-up date.
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From start of study treatment up to Week 40
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Number of Participants With Cerebrospinal Fluid (CSF) Chemistry Abnormalities Reported as Treatment Emergent Adverse Events (TEAEs)
Time Frame: From start of study treatment up to Week 40
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CSF chemistry assessments (including cell counts, glucose and protein) was measured.
CSF chemistry abnormalities were recorded and reported as TEAE.
An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship.
TEAEs were defined as all AEs that occurred at or after the first dose of the investigational product or device implant surgery (whichever occurred earlier) and through the last follow-up date.
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From start of study treatment up to Week 40
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Number of Participants With Positive Anti-SHP611 Antibodies in Cerebrospinal Fluid (CSF) and or Serum
Time Frame: Baseline up to Week 40
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Number of participants with positive anti-SHP611 antibody results in serum and in CSF were reported.
A participant was considered positive if they had at least 1 positive result during the study.
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Baseline up to Week 40
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Change From Baseline in Motor Function Using Gross Motor Function Measure 88 (GMFM-88) Total Score at Week 40
Time Frame: Baseline, Week 40
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The GMFM-88 was used to measure motor function.
The GMFM-88 item scores were used to calculate domain-specific percent score for each of the 5 GMFM-88 dimensions (lying and rolling; sitting; crawling and kneeling; standing; walking, running, and jumping), and a total GMFM-88 (percent) score was calculated based on each dimension score.
Each of the 88 items was rated on a 4-point scale: 0=does not initiate; 1=initiates; 2=partially completes; and 3=completes.
The GMFM-88 total scores ranged from 0% (no mobility) to a score of 100%, that is (i.e,) the score that can be obtained by an average 5-year-old or older child with normal motor abilities.
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Baseline, Week 40
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Number of Participants With Shift in Functional Endoscopic Evaluation of Swallowing (FEES) for Texture Utilized at Week 40
Time Frame: Week 40
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The FEES assessment was performed to evaluate the structure and function of the upper throat during swallowing and for an assessment of aspiration risk.
Each participant had this assessment performed at the clinical site using transnasal flexible laryngoscopy.
FEES for texture utilized was evaluated.
Data was presented only for the shifts observed.
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Week 40
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Number of Participants With Shift in Functional Endoscopic Evaluation of Swallowing for Feeding Assessment (Laryngeal Penetration) at Week 40
Time Frame: Week 40
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The FEES assessment was performed to evaluate the structure and function of the upper throat during swallowing and for an assessment of aspiration risk.
Each participant had this assessment performed at the clinical site using transnasal flexible laryngoscopy.
Feeding assessment for laryngeal penetration was assessed.
Data was presented only for the shifts observed.
Here TL refers to thin liquids, THL refers to thickened liquids, PT refers to puree texture, WCC refers to with cough and clearance and WCNC refers to with cough and no clearance.
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Week 40
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Number of Participants With Shift in Functional Endoscopic Evaluation of Swallowing for Feeding Assessment (Aspiration Through Vocal Cords) at Week 40
Time Frame: Week 40
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The FEES assessment was performed to evaluate the structure and function of the upper throat during swallowing and for an assessment of aspiration risk.
Each participant had this assessment performed at the clinical site using transnasal flexible laryngoscopy.
Feeding assessment for aspiration through vocal cords were assessed.
Data was presented only for the shifts observed.
Here TL refers to thin liquids, THL refers to thickened liquids, PT refers to puree texture, WCC refers to with cough and clearance and WCNC refers to with cough and no clearance.
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Week 40
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Number of Participants With Shift in Functional Endoscopic Evaluation of Swallowing for Dose Residue Clear After Subsequent Swallowing at Week 40
Time Frame: Week 40
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The FEES assessment was performed to evaluate the structure and function of the upper throat during swallowing and for an assessment of aspiration risk.
Each participant had this assessment performed at the clinical site using transnasal flexible laryngoscopy.
FEES for dose residue clear after subsequent swallowing was assessed.
Data was presented only for the shifts observed.
Here TL refers to thin liquids, THL refers to thickened liquids, PT refers to puree texture.
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Week 40
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Number of Participants With Shift in Functional Endoscopic Evaluation of Swallowing for Aspiration Risk at Week 40
Time Frame: Week 40
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The FEES assessment was performed to evaluate the structure and function of the upper throat during swallowing and for an assessment of aspiration risk.
Each participant had this assessment performed at the clinical site using transnasal flexible laryngoscopy.
FEES for aspiration risk was assessed.
Data was presented only for the shifts observed.
Here TL refers to thin liquids, THL refers to thickened liquids, PT refers to puree texture, WCC refers to with cough and clearance and WCNC refers to with cough and no clearance.
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Week 40
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Number of Participants With Change in Nerve Conduction as Measured by Electroneurography (ENG) Assessments by Categorized Amplitude Values at Week 40
Time Frame: Baseline, Week 40
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Evaluation of peripheral nerve function by ENG studies was performed to measure nerve conduction velocity (NCV), amplitude (AMP),distal latency (DL), and F-wave latency.
Categorized amplitude values were assessed.
Data was presented only for number of participants who reported change in amplitude greater than (>) 0.
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Baseline, Week 40
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Number of Participants With Change in Nerve Conduction as Measured by Electroneurography (ENG) Assessments by Categorized Nerve Conduction Velocity at Week 40
Time Frame: Baseline, Week 40
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Evaluation of peripheral nerve function by ENG studies was performed to measure nerve conduction velocity (NCV), amplitude (AMP),distal latency (DL), and F-wave latency.
Categorized nerve conduction velocity values were assessed.
Data was presented only for number of participants who reported change in nerve conduction velocity > 0.
Here MME refers to median motor elbow, WCV for wrist conduction velocity, PMA for peroneal motor ankle, FHCV to fibular head conduction velocity, TMA for tibial motor ankle, KCV for knee conduction velocity and UME for ulnar motor elbow,
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Baseline, Week 40
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Number of Participants With Change in Nerve Conduction as Measured by Electroneurography (ENG) Assessments by Categorized Distal Latency at Week 40
Time Frame: Baseline, Week 40
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Evaluation of peripheral nerve function by ENG studies was performed to measure nerve conduction velocity (NCV), amplitude (AMP),distal latency (DL), and F-wave latency.
Categorized amplitude values were assessed.
Data was presented only for number of participants who reported change in distal latency > 0.
Here MMW refers to median motor wrist, APB for abductor pollicis brevis, MSW for median sensory wrist, DDL for digit distal latency, PMA for peroneal motor ankle, EDB for extensor digitorum brevis, SSB-point DL for sural sensory B-point distal latency, TMA for tibial motor ankle, abductor hallucis for AH distal latency and, UMW for ulnar motor wrist.
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Baseline, Week 40
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Change From Baseline in Adaptive Behavior Composite Standard Score as Measured by Vineland Adaptive Behavior Scales, Second Edition (VABS-II) at Week 40
Time Frame: Baseline, Week 40
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The VABS-II test measures adaptive behaviors, including the ability to cope with environmental changes, to learn new everyday skills, and to demonstrate independence.
This test measures the following 4 key domains: communication, daily living skills, socialization, motor skills, and the adaptive behavior composite (ABC) (a composite of the other 4 domain).
Items in each domain are rated as either 0 (does not), 1(sometimes) or 2(independently) performs a given behavior or skill.
The 4 domain standard scores range from 20-160 and higher scores indicate a higher level of functioning.
ABC scores have a mean of 100 and a standard deviation of 15 (range = 20 to 160) and higher scores indicate a higher level of functioning.
A positive change value indicates improvement in adaptive functioning.
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Baseline, Week 40
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Change From Baseline in Domain-specific Caregiver Observed Metachromatic Leukodystrophy (MLD) Functioning and Outcomes Reporting Tool (COMFORT) Scores at Week 40
Time Frame: Baseline, Week 40
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COMFORT questionnaire was used to assess health status and the impact of disease on the ability of participants with MLD to carry out activities of daily life.
The questionnaire was organized by 8 domains (ie, personal care; positioning, transfer, or mobility; eating; pain and discomfort during the day; sleep; emotions; communication; and play and leisure activities).
The COMFORT scores range from 0 to 100, with higher scores indicating a decline in the functioning.
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Baseline, Week 40
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Maximum Observed Serum Concentration (Cmax) of SHP611
Time Frame: Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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Cmax is the maximum observed serum concentration of SHP611.
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Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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Time to Reach Maximum Observed Drug Concentration (Tmax) of SHP611 in Plasma
Time Frame: Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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Tmax is the time to reach maximum observed drug concentration of SHP611 during a dosing interval.
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Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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Area Under the Concentration-Time Curve From Time Zero to Infinity (AUC0-inf) of SHP611
Time Frame: Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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The AUC0-inf is the area under the concentration-time curve from time zero to infinity of SHP611.
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Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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Area Under the Concentration-Time Curve From Time Zero to the Time of the Last Quantifiable Concentration (AUC0-last) of SHP611
Time Frame: Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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AUC0-last is the area under the concentration-time curve from the time of dosing to the last measurable concentration of SHP611.
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Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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Area Under the Concentration-Time Curve From Time Zero to 24 Hours (AUC0-24) of SHP611
Time Frame: Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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Area under the concentration-time curve over the interval from 0 to 24 hours after dosing of SHP611.
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Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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First Order Rate Constant (Lambda z) Associated With the Terminal (Log-linear) Portion of the Curve for SHP611
Time Frame: Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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Lambda z is first order elimination rate constant associated with the terminal portion of the curve, determined as the negative slope of the terminal log-linear phase of the drug concentration-time curve.
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Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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Terminal Elimination Half Life (t1/2) of SHP611
Time Frame: Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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The t1/2 is the time in hours required for the concentration of the drug to reach half of its original value.
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Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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Total Body Clearance (CL/F) After Intrathecal Administration of SHP611
Time Frame: Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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CL/F was defined as the total body clearance of the drug for extravascular administration divided by the fraction of dose absorbed.
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Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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Volume of Distribution (Vz/F) After Intrathecal Administration of SHP611
Time Frame: Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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Volume of distribution was associated with the terminal slope following extravascular administration of SHP611 divided by the fraction of dose absorbed.
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Baseline: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose; Week 38: Predose, 0.5, 1, 2, 4, 8, 12, 24, 48 hours postdose
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Concentration of SHP611 in Cerebrospinal Fluid
Time Frame: Baseline, 4, 8, 12, 16, 20, 24, 28, 32, 36, and 40 weeks
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Concentration of SHP611 in CSF was determined using validated enzyme-linked immunosorbent assay (ELISA) method.
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Baseline, 4, 8, 12, 16, 20, 24, 28, 32, 36, and 40 weeks
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Collaborators and Investigators
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Metabolic Diseases
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Demyelinating Diseases
- Genetic Diseases, Inborn
- Metabolism, Inborn Errors
- Lysosomal Storage Diseases
- Lipid Metabolism Disorders
- Brain Diseases, Metabolic
- Brain Diseases, Metabolic, Inborn
- Sphingolipidoses
- Lysosomal Storage Diseases, Nervous System
- Lipidoses
- Lipid Metabolism, Inborn Errors
- Leukoencephalopathies
- Hereditary Central Nervous System Demyelinating Diseases
- Sulfatidosis
- Leukodystrophy, Metachromatic
Other Study ID Numbers
- HGT-MLD-070
- 2011-002044-28 (EudraCT Number)
- U1111-1153-1422 (Other Identifier: WHO)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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