Clinical Trial in 22q13 Deletion Syndrome(Phelan-McDermid Syndrome)



Status:Recruiting
Conditions:Other Indications
Therapuetic Areas:Other
Healthy:No
Age Range:5 - 12
Updated:8/4/2018
Start Date:February 2012
End Date:April 2021
Contact:Jordana Norry
Email:jordana.norry@mssm.edu
Phone:212-241-3072

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A Double-Blind Placebo-Controlled Crossover Trial of Insulin-Like Growth Factor-1 (IGF-1) in Children and Adolescents With 22q13 Deletion Syndrome(Phelan-McDermid Syndrome)

The purpose of this study is to pilot the use of Insulin-Like Growth Factor-1 (IGF-1)
treatment in 22q13 Deletion Syndrome (Phelan-McDermid Syndrome) caused by SHANK3 gene
deficiency in order to evaluate safety, tolerability, and efficacy. IGF-1 is an injection
under the skin that contains human IGF-1. IGF-1 is approved by the FDA under the brand name
Increlex for the treatment of children with short stature due to primary IGF-1 deficiency. It
is being used off-label in the current study and is not FDA approved, nor has it yet been
studied in humans for the treatment of SHANK3 deficiency.

Overall, there will be 1-3 screening visits, a baseline visit where study drug will first be
administered, and then 10 follow-up visits. Follow-up visits will occur at week 2, week 4,
week 8, and week 12 in each treatment phase (IGF-1 or placebo), and then again 4 weeks after
study completion, Parents/guardians will be asked to administer the IGF-1/ placebo by
injection at home and will also be responsible for monitoring glucose levels in the child.
Parents/guardians will be trained in these methods, and will have scheduled phone calls and
appointments where the dose and tolerability will be discussed.

Assessments include the following:

- Physical and neurological examination

- Medical and psychiatric history

- X-ray of long bone (e.g., hand) to ensure your child's growth plates are not closed

- Electrocardiography

- Echocardiography

- Pregnancy test if applicable

- Lab safety measures (through blood draw)

- Autism Diagnostic Interview (ADI)

- Autism Diagnostic Observation Schedule (ADOS)

- The Mullen Scales of Early Learning or the Leiter International Performance
Scale-Revised

- Vineland Adaptive Behavior Scale (VABS)

- Clinical Global Impressions (CGI) Rating Scales

- The Repetitive Behaviors Scale (RBS)

- Aberrant Behavior Checklist (ABC)

- The Caregiver Strain Questionnaire (CSI)

- Language Environment Analysis (LENA)

- The Macarthur-Bates Communication Inventory (MCDI)

- Unified Parkinson's Disease Rating Scale (UPDRS)

- Quick Neurological Screening Test 2nd Edition (QNST-2)

- Gait Analysis with motion capture video systems and interactive 3-dimensional modeling
systems

Inclusion Criteria:

- 5 to 12 years old

- pathogenic deletions or mutations of the SHANK3 gene

- stable medication regimens for at least three months prior to enrollment

Exclusion Criteria:

- closed epiphyses

- active or suspected neoplasia

- intracranial hypertension

- hepatic insufficiency

- renal insufficiency

- cardiomegaly / valvulopathy

- history of allergy to IGF-1 or any component of the formulation (mecasermin)

- history of extreme prematurity (<1000 grams) with associated early neo-natal
complications, e.g. intra-cerebral hemorrhage, prolonged hypoxia, prolonged
hypoglycemia

- patients with comorbid conditions deemed too medically compromised to tolerate the
risk of experimental treatment with IGF-1
We found this trial at
1
site
New York, New York 10029
Principal Investigator: Alexander Kolevzon, MD
?
mi
from
New York, NY
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