Choosing Antipsychotics for Children with Schizophrenia: Evidence Plus Experience

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Choosing Antipsychotics for Children with Schizophrenia: Evidence Plus Experience Interview EXPERTS IN CHILD PSYCHIATRY Choosing antipsychotics for children with schizophrenia: Evidence plus experience Seeking effi cacy while managing adverse eff ects in early-onset psychosis ® Dowden“A patient Health I’ve seen Media for a number of years had been diag- nosed in the pervasive developmental disorder spectrum, but she was quite atypical. Her perseverative thinking CopyrightFor personalfocused use on aonly fantasy world, and she was so preoccupied that it was very diffi cult to pull her out of it. Now at age 12, she has a full-blown psychotic disorder, and the fantasy world is enveloping her. She hears people talking to her all day long.” Jean A. Frazier, MD, who treats this patient and other children with psychotic disorders, was 1 of 4 principal investigators in the Treatment of Early -Onset Schizo- phrenia Spectrum Disorders (TEOSS) study, a random- ized, double-blind, multisite trial funded by the National Institute of Mental Health. The study, published in © 2009 MARK KAUFFMAN November 2008,1 compared the effi cacy and tolerabil- ity of 3 antipsychotics—olanzapine, risperidone, and molindone—in pediatric patients with schizophrenia or schizoaffective disorder (Box 1, page 62). Dr. Frazier discusses the unexpected fi ndings of the TEOSS trial with Current Psychiatry Section Editor Robert A. Kowatch, MD, PhD. Based on the trial fi nd- ings and her experience, she tells how she makes deci- sions when prescribing antipsychotics for children and adolescents with schizophrenia and related disorders. DR. KOWATCH: The TEOSS trial found no signifi cant diff er- ences in effi cacy between molindone and the atypical antipsychotics (olanzapine and risperidone) included in the study. You’ve prescribed both typical and atypi- Current Psychiatry 60 July 2009 cal antipsychotics in research and in your clinical prac- For mass reproduction, content licensing and permissions contact Dowden Health Media. 60_CPSY0709 60 6/16/09 11:43:35 AM tice. Do you believe there’s any diff erence Jean A. Frazier, MD, is the between the 2 classes? Robert M. and Shirley S. Siff Chair DR. FRAZIER: There are some diff erences. and professor of psychiatry and pediatrics, and vice chair and For example, treatment-refractory patients, director, division of child and especially young children, sometimes adolescent psychiatry, University of Massachusetts Medical School, need more D2 blockade than some atypi- Worcester, MA. cal antipsychotics provide. I’ve seen more extra pyramidal side eff ects with the typical antipsychotics than the atypicals, although Robert A. Kowatch, MD, PhD, it’s not uncommon to see some akathisia a Section Editor for CURRENT PSYCHIATRY, is professor with ari piprazole or some dystonia and dys- of psychiatry and pediatrics, kinesia with risperidone. Cincinnati Children’s Hospital Medical Center, Cincinnati, OH. DR. KOWATCH: What are the benefi ts and risks of using antipsychotics in young children? DR. FRAZIER: The benefi t is that antipsychot- ics can decrease children’s suff ering and get them more centered in reality so they can Clinical Point enjoy their friends and progress in school. fi nding of this study to me was the side ef- The 3 antipsychotics And when that happens, it’s wonderful. What fect profi le of these agents. in TEOSS showed no are the risks? With the atypicals my greatest DR. KOWATCH: You mean weight gain with concern is weight gain, and with the typical olanzapine and extrapyramidal symptoms diff erence in effi cacy, agents it’s tardive dyskinesia. with molindone? but the meaningful DR. KOWATCH: Have you changed the way DR. FRAZIER: Yes. fi nding to me was you prescribe antipsychotics as a result of the side eff ect profi le the TEOSS study? DR. FRAZIER: Actually, I have. Clinicians have Managing side eff ects of these agents to be very careful about selecting psycho- DR. KOWATCH: How do you manage antipsy- tropic agents that can worsen pediatric- chotic side eff ects? onset obesity. Olanzapine is an eff ective DR. FRAZIER: For any of the antipsychotics’ agent for targeting psychosis and mood side eff ects, you have to decide whether symptoms, but the weight gain associ- to continue the agent or switch to anoth- ated with it is a concern. I do not prescribe er anti psychotic. For example, I’ve had a olanzapine as much as I have in the past, number of children—many with signifi cant although I keep it in my armamentarium weight problems—whose psychotic symp- and tend to reserve it for third- or fourth- toms have responded only to risperidone. line therapy. So we put them back on risperidone, and I have found molindone to be quite ef- the decision then becomes what can we do fective in children with schizophrenia or to help with the weight gain while continu- schizoaff ective disorder, especially in those ing that agent. who have gained a lot of weight on atypi- For weight gain, I think the best inter- cal antipsychotics. They usually lose weight vention is diet, exercise, and drinking a lot on molindone. of water, but that can be eff ective only if DR. KOWATCH: Do you think the TEOSS you engage the patient’s entire family in study had adequate power to demonstrate the intervention as well. Short of that, a diff erences among molindone, olanzapine, number of pharmacologic interventions and risperidone? have been studied, although not specifi - DR. FRAZIER: We enrolled 119 patients— cally in children. which is large for a study such as this—but In an open-label trial our group con- we did not reach our target of 168 patients, ducted with 11 children age 10 to 18 years which might have increased our power to who had gained weight while taking atyp- detect diff erences. Among the children we ical antipsychotics, metformin decreased did enroll, the 3 antipsychotics showed no lipid levels and body mass index but not Current Psychiatry diff erence in effi cacy, but the meaningful signifi cantly. I’ve followed these children Vol. 8, No. 7 61 61_CPSY0709 61 6/16/09 11:43:40 AM Box 1 Antipsychotics in children with schizophrenia: TEOSS study adds to debate about effi cacy and tolerability he 5-year National Institute Tof Mental Health-funded Observed PANSS total score by week Treatment of Early-Onset of treatment Children and Schizophrenia Spectrum Disorders antipsychotics (TEOSS) trial began with an ambitious goal: to compare the Molindone Olanzapine Risperidone effi cacy and safety of 1 typical 110 and 2 atypical antipsychotics 100 in children age 8 to 19 with 90 schizophrenia. The primary 80 hypothesis was that atypical 70 agents would show greater 60 Clinical Point effi cacy and tolerability when given 50 for 8 weeks. Instead, the atypical total score PANSS 40 If a child has not agents showed no greater effi cacy, 30 and adverse effects occurred with 012345678 responded to 2 trials all 3 antipsychotics. Because the Weeks with atypicals, trial was designed for 168 subjects but enrolled 119, it may not have Mean Positive and Negative Symptom Scale (PANSS) total scores of I might start thinking observed cases during each week of the TEOSS trial. Minimum possible been adequately powered to PANSS score is 30; scores >60 typically are viewed as problematic. about a typical agent detect differences among the 3 or clozapine agents. Medications: Most of the 116 children who treatment discontinuation. Extrapyramidal received medications were severely ill with symptoms were monitored with involuntary psychotic symptoms when randomly assigned movement and akathisia scales. to 1 of the 3 antipsychotics for 8 weeks of Among the 70 patients who completed double-blind treatment. Administration began at treatment (25 of 40 with molindone, 17 of 35 the lowest dose in a set range and usually was olanzapine, and 28 of 41 with risperidone), increased to midrange within 10 to 14 days. more than one-half failed to achieve an Dosing remained fl exible within these ranges: adequate response. Response rates were • molindone, 10 to 140 mg/d (mean endpoint 50% with molindone, 34% with olanzapine, dose 59.9 mg/d) and 46% with risperidone. The atypical • olanzapine, 2.5 to 20 mg/d (mean endpoint antipsychotics did not show greater effi cacy dose 11.4 mg/d) than molindone, and mean reductions in psychotic symptoms were modest (20% to • risperidone, 0.5 to 6 mg/d (mean endpoint 34% on the PANSS). Mean medication doses dose 2.8 mg/d). were midrange and considered moderate. Benztropine, ≥1 mg/d, was given to all patients Tolerability: Sedation, irritability, and anxiety treated with molindone, 14% of those treated were frequent adverse events. Patients with olanzapine, and 34% of those treated with receiving molindone reported signifi cantly risperidone to prevent or manage akathisia. higher rates of akathisia (P < .0008). Those Effi cacy: Two criteria defi ned treatment receiving olanzapine reported signifi cantly response: a Clinical Global Impression higher rates of weight gain (P < .0001) and improvement score of 1 or 2 and a ≥20% were the only group with increased lipid and reduction in baseline Positive and Negative insulin serum levels and liver function tests. Syndrome Scale (PANSS) score. Tolerability Patients in the risperidone group reported outcomes included neurologic side effects, signifi cantly higher rates of constipation (P < weight changes, laboratory analyses, vital .021) and were the only group that experienced signs, ECG, serious adverse events, and elevated serum prolactin. Source: Sikich L, Frazier JA, McClellan J, et al. Double-blind comparison of fi rst- and second-generation antipsychotics in early-onset schizophrenia and schizoaffective disorder: fi ndings from the Treatment of Early-Onset Schizophrenia Spectrum disorders (TEOSS) Current Psychiatry study. Am J Psychiatry. 2008;165:1420-1431 62 July 2009 continued on page 66 62_CPSY0709 62 6/16/09 11:43:46 AM continued from page 62 Box 2 Prodromal symptoms of early-onset psychotic disorder became interested in the complicated clearly differentiate the prodromal signs of I overlap between pervasive developmental psychosis from normal childhood behaviors.
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