Trial of RAD001 and Neurocognition in Tuberous Sclerosis Complex (TSC)
- Registration Number
- NCT01289912
- Lead Sponsor
- Mustafa Sahin
- Brief Summary
Tuberous Sclerosis Complex (TSC) is a multi-system disease, usually presenting with seizures, mental retardation and autism, and exhibiting a high variability in clinical findings both among and within families. Investigators are doing research in order to identify possible neurocognitive benefits from treatment with RAD001 or placebo for a six month period. There may also be potential for improvements in seizure frequency, sleep and autistic behaviors. We hope this trial will lead to a better understanding of TSC and to new forms of treatment, to benefit children and adults with TSC in the future.
Individuals diagnosed with TSC will be asked to participate in this study if they are between the ages of 6 and 21 years of age and have an IQ of greater than or equal to 60. Both males and females will be asked to participate. Additionally, to be eligible for study participation, individuals must have been on the same seizure medication(s), if applicable, for at least 6 months. Individuals must also be able to participate in neuropsychological testing and meet certain medical criteria. They will need to sign an informed consent. If enrolled in the study, participants will have a number of screening tests to help determine if they are eligible for participation in the clinical trial. If eligible for the treatment phase of the trial, they will be asked to take either the study drug or a placebo (pill with no medicine), which is determined by chance.
The study involves about 9 visits, 3 of which can be done locally, over a six month period, as well as follow-up calls with our research nurse. Study visits will vary in length. Screening, three month and six month visits may last up to 8 hours, while all other visits will be less than 2 hours. The study visits include blood draws, laboratory tests and neuropsychological assessments. There is no fee to participate in this study. The study drug will be provided at no charge during the study.
After all study data has been analyzed, families will be informed of the overall results. Treatment on this study may or may not improve a child's learning skills (neurocognition). Future patients may benefit from what is learned.
- Detailed Description
This is a signal-seeking Phase II randomized, placebo-controlled trial of RAD001 in children and young adults with TSC with neurocognition as the primary outcome and autism spectrum disorder as a secondary outcome.
Specific Aims /Objectives Primary objective
* To evaluate the efficacy of RAD001 on neurocognition in patients with TSC compared to placebo as measured by well-validated, standardized, direct and indirect neurocognitive tools.
* To evaluate the safety of RAD001 compared with placebo in patients with TSC focusing on NCI CTCAE Grade 3 and 4 adverse events, serious adverse events, and Grade 3 and 4 laboratory toxicities.
Secondary objectives
* Comparison of absolute change from baseline in frequency of epileptiform events as recorded on seizure diaries between patients taking RAD001 vs. placebo
* Comparison of sleep disturbances between patients taking RAD001 vs. placebo, measured by the Pediatric Sleep Questionnaire (PSQ) and sleep logs
* Comparison of autism spectrum disorders features between patients taking RAD001 vs. placebo, measured by ADOS and SRS
* Comparison of academic skills between patients taking RAD001 vs. placebo, measured by WRAT4
* Comparison of behavioral problems between patients taking RAD001 vs placebo, measured by behavioral rating scales (BRIEF, BASC, SDQ, CHQ and SRS)
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 52
Not provided
Not provided
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description RAD001 RAD001 RAD001 is formulated as tablets of 5.0 mg strength, blister-packed under aluminum foil in units of 10 tablets and dosed on a regular basis. Placebo Placebo Matching placebo will be provided as a matching tablet and will also be blister packed under aluminum foil in units of 10.
- Primary Outcome Measures
Name Time Method Evaluation of the Safety of RAD001 on Neurocognition in Patients With TSC Compared With Placebo in Patients With TSC. 6 months Evaluation of the safety of RAD001 compared with placebo in patients with TSC focusing on NCI CTCAE Grade 3 and 4 adverse events, serious adverse events, and Grade 3 and 4 laboratory toxicities.
Evaluation of the Efficacy of RAD001 on Neurocognition in Patients With TSC Compared With Placebo. 6 months Baseline and 6 month Timepoint scores are reported for the following primary outcome measures:
1. Peabody Picture Vocabulary Test 4 (PPVT-4; Receptive Language Measure). Scores reported as (mean, SD). Range=40-160, higher scores are better.
2. Expressive Vocabulary Test 2 (EVT-2; Expressive Language Measure). Scores reported as (mean, SD). Range=40-160, higher scores are better.
3. Wide Range Assessment of Memory and Learning 2 (WRAML2; Measure of Verbal Memory and Attention ). Scores reported as (mean, SD). Range=1-19, higher scores are better.
4. Vineland Adaptive Behavior Scales-II (VABS-II; Measure of Adaptive Behavior). Scores reported as (mean, SD). Range = 40-160, higher scores are better.
5. Purdue Pegboard Test (Measure of Fine Motor Speed and Coordination). Scores reported as (mean, SD). Range = 40-160, higher scores are better.Evaluation of the Efficacy of RAD001 on Neurocognition (Cambridge Neuropsychological Test Automated Battery) in Patients With TSC Compared With Placebo. 6 months Scores are reported for baseline and 6 month timepoints on the Cambridge Neuropsychological Test Automated Battery (CANTAB) subscales below. For all subscales, scores are reported as the mean difference between the study subjects and a normative population matched for age, gender and IQ (e.g., subject subscale score - mean of matched normative group = reported score). Higher scores represent a better outcome.
1. Spatial Span (SSP) (spatial memory span) Range: -3 to 3
2. Spatial Working Memory (working memory) Range: -3 to 3
3. Pattern Recognition Memory (PRM) (visual pattern recognition memory) Range: -3 to 3
4. Spatial Recognition Memory (SRM) (spatial recognition memory) Range: -4 to 4
5. Rapid Visual Information Processing (RVIP) (sustained attention) Range: -4 to 4
6. Stockings of Cambridge (SOC) (spatial planning) Range: -4 to 4
7. Intra-Extra Dimensional Set Shift (IDED) (cognitive flexibility) Range: -5 to 5
8. Reaction Time (processing speed) Range: -5 to 5
- Secondary Outcome Measures
Name Time Method Comparison of Absolute Change From Baseline in Frequency of Epileptiform Events Between Patients Taking RAD001 vs. Placebo 6 months Comparison of absolute change from baseline in frequency of epileptiform events as recorded on seizure diaries between patients taking RAD001 vs. placebo
Comparison of Sleep Disturbances Between Patients Taking RAD001 vs. Placebo 6 months Comparison of sleep disturbances between patients taking RAD001 vs. placebo, measured by the Pediatric Sleep Questionnaire (PSQ) and sleep logs
Comparison of Autism Spectrum Disorders Features Between Patients Taking RAD001 vs. Placebo 6 months Scores for the Baseline and 6 Month Timepoints are reported. The secondary outcome measure was the Social Responsiveness Scale (SRS). Standard scores are reported with a mean of 100 and standard deviation of 15. The range is 40-160 with higher scores indicating a better outcome.
Comparison of Academic Skills Between Patients Taking RAD001 vs. Placebo 6 months Scores are reported for Baseline and 6 Month Timepoints. The secondary outcome measure was the Wide Range Achievement Test 4 (WRAT4), which was used to assess academic skills. The Reading and Math subtests were used. Standard scores are reported which have a mean of 100 and a standard deviation of 15 (range=40-160 where higher is better).
Comparison of Behavioral Problems Between Patients Taking RAD001 vs Placebo 6 months Scores for Baseline and 6 Month Timepoints are reported for the following secondary outcome measures:
1. Behavior Rating Inventory of Executive Function (BRIEF) (Measure of executive functions) T-scores are reported, with a mean of 50 and a standard deviation of 10. The range is 30-100 with higher scores indicating a worse outcome.
2. Behavioral Assessment System for Children (BASC) (Measure of emotional and behavioral problems) T-scores are reported (mean of 50, SD of 10). The range is 30-100 with higher scores indicating a worse outcome. Conversely, on the Adaptive Skills subscale of the BASC, lower scores indicate a poorer outcome.
3. Strengths and Difficulties Questionnaire (SDQ). Includes questions related to emotional symptoms, conduct problems, inattention/hyperactivity, peer relationship problems and prosocial behavior. Responses to these items are summed to comprise a Total Difficulties Score, which ranges from 0-40, with lower scores indicating a better outcome
Trial Locations
- Locations (2)
Boston Children's Hospital
🇺🇸Boston, Massachusetts, United States
Cincinnati Children's Hospital Medical Center
🇺🇸Cincinnati, Ohio, United States