Tideglusib vs. Placebo in the Treatment of Adolescents With Autism Spectrum Disorders (TIDE)

This is an interventional treatment trial for Autism Spectrum Disorders focused on measuring ASD, Autism Read More

Inclusion Criteria:

1. Outpatients 12-17 years of age inclusive with a mental age equivalent ≥ 18 months at Screening.
2. Weigh a minimum of 30 kg (the 3rd percentile for 12 years of age)
3. Meet Diagnostic and Statistical Manual of Mental Disorders. Diagnostic and Statistical Manual (DSM-5) criteria will be established by a clinician with expertise with individuals with ASD.
4. Have a Clinician's Global Impression-Severity (CGI-S) score ≥ 4 (moderately ill) at Screening.
5. If already receiving stable concomitant medications affecting behaviour, have stable regimens with no changes during the preceding 1 month prior to Screening (with the exception of fluoxetine, where a period of 6 weeks is needed), and will not electively initiate new or modify ongoing medications for the duration of the study
6. If already receiving stable non-pharmacological educational and behavioural interventions, have continuous participation during the preceding 3 months prior to Screening, and not electively initiate new or modify ongoing interventions for the duration of the study
7. Have normal physical examination and laboratory test results at Screening. If abnormal, the finding(s) must be deemed clinically insignificant by the Investigator.
8. Ability to obtain written informed consent from the participant, if developmentally appropriate. If a participant does not have the capacity to consent, ability to obtain assent (if developmentally appropriate), as well as written informed consent from their parent(s)/legal guardian.

Exclusion Criteria:

1. Patients with a primary psychiatric diagnosis other than ASD
2. Pregnant female patients; sexually active female patients on inadequate birth control.
3. Patients with known phosphatase and tensin homolog (PTEN) mutations as they are unlikely to respond to this medication
4. Patients with a serious medical condition that, based on Investigator judgment, might interfere with the conduct of the study, confound interpretation of the study results, or endanger their own well-being. Patients with evidence of any significant hematological, endocrine, cardiovascular (including uncorrected symptomatic congenital heart disease), respiratory, renal, hepatic, or gastrointestinal disease, not including mild common pediatric diseases in these areas that are stable (e.g. mild asthma, constipation, etc.).
5. Patients with unstable epilepsy (i.e. seizures occurring within the last 6 months), or patients with epilepsy who are not on stable doses of antiepileptic medications (i.e. dose changes within the last 3 months).
6. Patients with hypersensitivity to tideglusib or any components of its formulation.
7. Patients unable to tolerate venipuncture procedures for blood sampling.
8. Patients actively enrolled in another intervention study.
9. Patients who have elevated liver enzymes ≥ 3 times the normal amount before the study begins.
10. Patients who have serum creatinine of >150 μmol/L and creatinine clearance ≤60ml/m (according to Cockcroft-Gault formula) at Screening.
11. Patients taking strong CYP3A4 inhibitors (e.g. clarithromycin, telithromycin, ketoconazole, itraconazole, posaconazole, nefazodone, indinavir, ritonavir)
12. Inability to speak and understand English sufficiently enough to allow for the completion of all study assessments (parent; patient, if verbal).