Infantile Neuroaxonal Dystrophy
Conditions
Keywords
Pediatric genetic disorder, cognitive function, neuro-muscular disorder, PLA2G6
Brief summary
This is a research study to find out if clinically prescribed desipramine is effective at improving the symptoms and slowing the progression of Infantile Neuroaxonal Dystrophy (INAD) in affected children. Participants will receive an initial oral dose of study drug once a day. This dose may be changed depending on response to study drug Clinically collected data will be recorded for up to 5 years. Investigators will also ask for participant permission to obtain a sample of child's skin biopsy from unused clinical sample previously collected for standard of care.
Detailed description
To be eligible participants must be able to swallow tablets The study drug is to be taken once daily Schedule of events. Day 0 - ECG and blood tests (4 ml or ¾ teaspoon) Day 3 - ECG and blood tests (4 ml or ¾ teaspoon) Day 7 - ECG and blood tests (4 ml or ¾ teaspoon) Weeks 2, 3, 4, 8 & 12. ECG and blood tests (4 ml or ¾ teaspoon) Every 3 months for up to 5 years. .
Interventions
Study drug (desipramine) provided in tablet form to be taken daily.
Sponsors
Study design
Eligibility
Inclusion criteria
* 03-17years. * Any gender * Confirmed homozygotes or compound heterozygotes of pathogenic mutation variant(s) in PLA2G6 * Confirmed homozygotes of pathogenic mutation in PLA2G6 * Documentation of clinical presentation (signs and symptoms of neurodegenerative process) of INAD
Exclusion criteria
* Patient has sign and symptom suggesting an ongoing acute or chronic illness such as fever of unknown origin or infection. * Patient has a second genetic condition * Parents are unable or unwilling to return for continued care for up to 12 months
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in Gross Motor Function as Measured by Gross Motor Function Measure (GMFM-66) | Baseline, 3, 6, 9, and 12 months | The Gross Motor Function Measure (GMFM-66) is a 66 item standardized observational instrument designed and validated to measure change in gross motor function over time in children with cerebral palsy. Items are ordered in terms of difficulty and a unit of change has the same meaning throughout the scale ranging from 0 to 100. 0 = does not initiate, 1 = initiates, 2 = partially completes, 3 = completes. Scoring the GMFM-66 requires the use of a computer program called the Gross Motor Ability Estimator (GMAE). Individual item scores are entered and a mathematical algorithm calculates an interval level total score. The total score is an estimate of the child's gross motor function. |
| Change in Motor Function as Measured by Quick Motor Function Test (QMFT) | Baseline, 3, 6, 9, and 12 months | The Quick Motor Function Test (QMFT) is a 16 item, psychometrically robust outcome assessment, validated in children and adults with Pompe disease (a lysosomal storage disorder characterized by progressive muscle weakness). This motor function test observes performance and scores the items separately on a 5-point ordinal scale (ranging from 0 to 4). If items can be performed on both left and right extremities, the right side is taken. A total score is obtained by adding the scores of all items. The total score ranges between 0 and 64 points. A higher score correlates with greater motor function. |
| Change in Cognitive Function as Measured by the Vineland Adaptive Behavioral Scale | Baseline, 3, 6, 9, and 12 months | The Vineland-3 is a standardized measure of adaptive behavior--the things that people do to function in their everyday lives. It is a norm-based instrument that compares the examinee's adaptive functioning in four domains: Communication, Daily Living Skills, Socialization and Motor Skills to that of others of the same age. A composite score of adaptive behavior is calculated that summarizes the individual's performance across all four domains. |
| Number of Participants With Change in Q-T Interval on ECG | Baseline, 3, 6, 9, and 12 months | Evidence of ECG changes, specifically, prolonged Q-T interval in response to study drug. The Q-T interval is the time from the start of the Q wave to the end of the T wave. It represents the time taken for ventricular depolarisation and repolarisation, effectively the period of ventricular systole from ventricular isovolumetric contraction to isovolumetric relaxation. Participants with a prolonged Q-T interval at any timepoint is reported. |
| Number of Participants With Abnormal Transaminase Values | Baseline, 3, 6, 9, and 12 months | Transaminase values as measured by serum alanine transaminase (ALT) and aspartate transaminase (AST). Participants with abnormal transaminase values at any timepoint is reported. |
Countries
United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| Children With INAD Infantile neuroaxonal dystrophy (INAD) is an extremely rare autosomal recessive neurodegenerative disorder that has grave clinical outcome and significant morbidity and mortality.
Desipramine: Study drug (desipramine) provided in tablet form to be taken daily. | 4 |
| Total | 4 |
Withdrawals & dropouts
| Period | Reason | FG000 |
|---|---|---|
| Overall Study | Parent's decision | 2 |
| Overall Study | Study early termination | 2 |
Baseline characteristics
| Characteristic | Children With INAD |
|---|---|
| Age, Categorical <=18 years | 4 Participants |
| Age, Categorical >=65 years | 0 Participants |
| Age, Categorical Between 18 and 65 years | 0 Participants |
| Ethnicity (NIH/OMB) Hispanic or Latino | 0 Participants |
| Ethnicity (NIH/OMB) Not Hispanic or Latino | 4 Participants |
| Ethnicity (NIH/OMB) Unknown or Not Reported | 0 Participants |
| Gross Motor Function Measure (GMFM-66) | 1 units on a scale |
| Quick Motor Function Test (QMFT) | 0 units on a scale |
| Race (NIH/OMB) American Indian or Alaska Native | 0 Participants |
| Race (NIH/OMB) Asian | 2 Participants |
| Race (NIH/OMB) Black or African American | 0 Participants |
| Race (NIH/OMB) More than one race | 0 Participants |
| Race (NIH/OMB) Native Hawaiian or Other Pacific Islander | 0 Participants |
| Race (NIH/OMB) Unknown or Not Reported | 1 Participants |
| Race (NIH/OMB) White | 1 Participants |
| Region of Enrollment United States | 4 Participants |
| Sex: Female, Male Female | 3 Participants |
| Sex: Female, Male Male | 1 Participants |
Adverse events
| Event type | EG000 affected / at risk |
|---|---|
| deaths Total, all-cause mortality | 0 / 4 |
| other Total, other adverse events | 0 / 4 |
| serious Total, serious adverse events | 0 / 4 |
Outcome results
Change in Cognitive Function as Measured by the Vineland Adaptive Behavioral Scale
The Vineland-3 is a standardized measure of adaptive behavior--the things that people do to function in their everyday lives. It is a norm-based instrument that compares the examinee's adaptive functioning in four domains: Communication, Daily Living Skills, Socialization and Motor Skills to that of others of the same age. A composite score of adaptive behavior is calculated that summarizes the individual's performance across all four domains.
Time frame: Baseline, 3, 6, 9, and 12 months
Population: Data not collected.
Change in Gross Motor Function as Measured by Gross Motor Function Measure (GMFM-66)
The Gross Motor Function Measure (GMFM-66) is a 66 item standardized observational instrument designed and validated to measure change in gross motor function over time in children with cerebral palsy. Items are ordered in terms of difficulty and a unit of change has the same meaning throughout the scale ranging from 0 to 100. 0 = does not initiate, 1 = initiates, 2 = partially completes, 3 = completes. Scoring the GMFM-66 requires the use of a computer program called the Gross Motor Ability Estimator (GMAE). Individual item scores are entered and a mathematical algorithm calculates an interval level total score. The total score is an estimate of the child's gross motor function.
Time frame: Baseline, 3, 6, 9, and 12 months
Population: No data collected beyond baseline.
Change in Motor Function as Measured by Quick Motor Function Test (QMFT)
The Quick Motor Function Test (QMFT) is a 16 item, psychometrically robust outcome assessment, validated in children and adults with Pompe disease (a lysosomal storage disorder characterized by progressive muscle weakness). This motor function test observes performance and scores the items separately on a 5-point ordinal scale (ranging from 0 to 4). If items can be performed on both left and right extremities, the right side is taken. A total score is obtained by adding the scores of all items. The total score ranges between 0 and 64 points. A higher score correlates with greater motor function.
Time frame: Baseline, 3, 6, 9, and 12 months
Population: No data collected beyond baseline.
Number of Participants With Abnormal Transaminase Values
Transaminase values as measured by serum alanine transaminase (ALT) and aspartate transaminase (AST). Participants with abnormal transaminase values at any timepoint is reported.
Time frame: Baseline, 3, 6, 9, and 12 months
Population: No data collected beyond 6 months.
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Children With INAD | Number of Participants With Abnormal Transaminase Values | 0 Participants |
Number of Participants With Change in Q-T Interval on ECG
Evidence of ECG changes, specifically, prolonged Q-T interval in response to study drug. The Q-T interval is the time from the start of the Q wave to the end of the T wave. It represents the time taken for ventricular depolarisation and repolarisation, effectively the period of ventricular systole from ventricular isovolumetric contraction to isovolumetric relaxation. Participants with a prolonged Q-T interval at any timepoint is reported.
Time frame: Baseline, 3, 6, 9, and 12 months
Population: No data collected beyond 6 months.
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Children With INAD | Number of Participants With Change in Q-T Interval on ECG | 1 Participants |