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Ps Psychopharmacotherapy in in Indi Individua duals w s with 22q11. h 22q11.2 D 2 Del eletion n Sy Syndrome with Comorbid Psychiatric Di Disor orders DR DR. MARIELA MO MOSHEVA PR PROF OF. DOR DORON ON GOTHELF SH SHEB EBA

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  1. Ps Psychopharmacotherapy in in Indi Individua duals w s with 22q11. h 22q11.2 D 2 Del eletion n Sy Syndrome with Comorbid Psychiatric Di Disor orders DR DR. MARIELA MO MOSHEVA PR PROF OF. DOR DORON ON GOTHELF SH SHEB EBA MED EDICAL CEN ENTER ER IS ISRAEL EL

  2. Background Ø 60-80% of individuals with 22q11.2DS cope with at least one lifetime psychiatric disorder Ø Psychiatric disorders are of major concern in individuals with 22q11.2DS. Ø Practical guidelines for the psychiatric management and side effect monitoring are highly important

  3. AIMS Ø To identify all studies reporting on pharmacological treatments for psychiatric disorders in 22q11.2DS Ø We focused on pharmacotherapy directed towards the major psychiatric comorbidities in 22q112DS: § ADHD § Mood and anxiety disorders § Psychotic spectrum disorders

  4. Sy Syst stematic Re Review (PR (PRIZMA) ) of of Ps Psychiatric Tr Treatments in 22q 22q11. 11.2DS 2DS

  5. Antipsychotics in 22q11DS Ø 3 original retrospective papers consisting of 67 individuals and 7 medications § 3 typical antipsychotics (amisulpride, clotiapine, fluphenazine) § 4 atypicals (clozapine, olanzapine, quetiapine, risperidone) Ø The studies were conducted largely on adult population (age ≥18 years), and only one included adolescents (age range 23.5±7.8) (Dori et al. 2017) Ø Long-term follow up (mean duration of treatment: 2.9 years to more than 6 years) Butcher et al. Brit J Psychiatry, 2015; Verhoeven et al. Pharmacopsychiatry, 2015; Dori et al. J Child Adolesc Psychopharm, 2017

  6. Side effects- antipsychotics Ø Rate of 60% rates Ø the majority were considered mild (59%) Ø extrapyramidal including akathisia and parkinsonism (26%) Ø weight gain (14%) Ø QT prolongation (3% ) Butcher et al. 2015

  7. Clozapine Ø Most common side effects: drowsiness/sedation (75%), weight gain (50%), hypersalivation (50%) Ø half of 22q11.2DS group treated with clozapine presented with serious side effects: seizures (44%), severe neutropenia (15%) and myocarditis (5%) Ø Rates of these clozapine induced side effects were higher in the 22q11.2DS patients compared to the non-22q11.2DS group

  8. Me Metyrosi sine Ø Tyrosine hydroxylase inhibitor that reduces the synthesis of dopamine. Ø A case series of effectiveness and side effects of metyrosine in five individuals with 22q11.2DS Ø Improvement in neuropsychiatric symptoms in 4/5 patients (enhancing interpersonal interactions, decreasing anxiety and irritability, and decrease in psychotic symptoms (2/5 patients). Ø Only mild side effects: moderate weight gain, mild weight loss and decreased appetite (16%), headache (16%).

  9. Stimulants in 22q11DS Ø The only medication studied for the treatment of ADHD in 22q11.2DS is short-acting methylphenidate Ø 1 randomized placebo-controlled trial consisting of 34 individuals (22 treatment / 12 placebo); treated with methylphenidate (mean dose 15.7±5.6 mg) (Green T et al. Biological psychiatry. 2009) Ø 1 open label study consisting of 40 individuals; treated with methylphenidate (mean dose 9.4±5.2 mg) (Gothelf D et al. The Journal of clinical psychiatry. 2003)

  10. Side effects Ø Poor appetite (92-94%) Ø Stomachache (42-50%) Ø Headaches (25-67%) Ø Depressive symptoms (40%)

  11. Antidepressants in 22q11DS Ø 1 original retrospective papers consisting of 21 individuals and 5 medications (Fluoxetine 20-60 mg/day, Escitalopram 10-30 mg/day, Sertraline 50-150 mg/day, Paroxetine 10-60 mg/day, Venlafaxine 300 mg/day) (Dori et al. J Child Adolesc Psychopharm, 2017) Ø 1 case series consisting of 3 individuals (Stachon AC et al. J of the Canadian Academy of Child and Adolescent Psychiatry, 2011)

  12. Recommendations- Stimulants Potential side effects Monitoring (at baseline and follow up) a comprehensive clinical evaluation by a pediatric cardiologist at baseline Cardiac including: [Tachycardia • Physical examination Hypertension Family history • Arrhythmia (QTc prolongation) ] echocardiogram • electrocardiogram • • heart rate • blood pressure Once every three or six months electrocardiogram • heart rate • • blood pressure

  13. Recommendations- Stimulants Potential side effects Monitoring (at baseline and follow up) Comment Depressive symptoms Psychiatric evaluation every 3 months Consider switching to atomoxetine Psychotic symptoms Psychiatric evaluation every 3 months Discontinue MPH, psychiatric evaluation is required Decreased Weight and height measurement at If there is a decline in percentile of the baseline and every 6 months growth curve, consider switching to another appetite/Weight loss drug with less effect on appetite or growth Growth retardation such as clonidine Sleep problems For children with sleep-onset problems Consider adding melatonin and/or possible delayed sleep phase A switch of medication should be syndrome: considered when sleep problems persist Sleep hygiene after careful dose adjustment and dose behavior therapy techniques scheduling; for instance, patients taking a based on stimulus control stimulant medication might switch to bedtime scheduling atomoxetine

  14. Recommendations- SSRIs Potential side effects Monitoring (at baseline and follow up) Comment Gastrointestinal Gastrointestinal symptoms are symptoms usually transient and respond quickly to dosage lowering or taking the medication with meals.

  15. Recommendations- Antipsychotics Potential side effects Monitoring (at baseline and follow up) Cardiac Electrocardiogram for QTc monitoring at baseline and during dose escalation and then once a year. [QTc prolongation ] Seizures If antipsychotics associated with high risk of seizures (e.g., clozapine) consider prophylactic addition of anticonvulsant (e.g valproic acid) Consider supplementation of calcium and vitamin D low doses and slow titration Movement disorders Monitor calcium concentrations because hypocalcemia may induce or aggravate existing tremors (Fung et al., 2015) Functional imaging, where available, to distinguish Parkinson disease from extrapyramidal side effects of antipsychotics (Boot et al., 2015; Fung et al., 2015) At baseline: Weight gain and metabolic • Weight, height syndrome • Metabolic measures (fasting glucose, triglycerides and cholesterol) • blood pressure Weight monitor monthly; Referral for a dietician for weight gain prophylaxis

  16. Conclusions Ø Individuals with 22q11.2DS and comorbid psychiatric disorders are treated in a manner comparable to non-22q11.2DS individuals. Ø However, distinctive medical comorbidities typical to individuals with 22q11.2DS may complicate the administration of pharmacotherapy Ø Polypharmacy- several antipsychotics and mood-stabilizers prescribe concomitantly Ø There is a challenge in studying standard psychiatric treatments in 22q11DS as most centers evaluate patients infrequently, during study visits and are not managing their psychiatric treatment

  17. Conclusions Ø To pool data on the effectiveness and safety of psychiatric treatments in 22q11DS we should all use the same clinical tools: Ø Clinical Global Impression Scale (CGI) Ø PANSS Ø The ADHD Rating Scale Ø decide on measures for patients treated with anti-depressants Ø Standardize how we measure side effects Ø Further trials with RCT design, larger sample sizes and more syndrome specific pharmacological agents are needed to improve evidence-based psychiatric care of 22q11.2DS individuals with comorbid mental disorders

  18. TH THANK K YOU!! Prof. Doron Prof. Raquel Prof. Avi Gothelf Gur Weitzman

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