Antipsychotic and psychostimulant drug combination therapy in attention deficit/hyperactivity and disruptive behavior disorders: a systematic review of efficacy and tolerability

Current nonstimulant medications for adults with attention-deficit/hyperactivity disorder

INTRODUCTION

Stimulants, including methylphenidate and amphetamines, are the first-line pharmacological treatment of ADHD in adults. However, in patients who do not respond or poorly tolerate stimulants, non-stimulant medications are usually recommended.

AREAS COVERED

The authors provide a narrative review of the literature on non-stimulant treatments for adult ADHD, including controlled and observational clinical studies conducted on adult samples. Atomoxetine has been extensively studied and showed significant efficacy in treating adult ADHD. Issues related to dosing, treatment duration, safety, and use in the case of psychiatric comorbidity are summarized. Among other compounds indicated for ADHD in adults, antidepressants sharing at least a noradrenergic or dopaminergic component, including tricyclic compounds, bupropion, and viloxazine, have shown demonstratable efficacy. Evidence is also available for antihypertensives, particularly guanfacine, as well as memantine, metadoxine, and mood stabilizers, while negative findings have emerged for galantamine, antipsychotics, and cannabinoids.

EXPERT OPINION

While according to clinical guidelines, atomoxetine may serve as the only second-line option in adults with ADHD, several other nonstimulant compounds may be effectively used in order to personalize treatment based on comorbid conditions and ADHD features. Nevertheless, further research is needed to identify and test more personalized treatment strategies for adults with ADHD.

Pediatric Off-Label Antipsychotic Use for Attention-Deficit/Hyperactivity Disorder

PURPOSE

Off-label antipsychotic use for behavioral symptoms in pediatric attention-deficit/hyperactivity disorder (ADHD) poses safety concerns, and evidence to support such use is limited. This study aims to investigate the risk of off-label antipsychotic use associated with comorbid disruptive behavior disorder (DBD) among a cohort of youth with ADHD.

METHODS

A cohort study was conducted using IQVIA PharMetrics Plus for Academics data from 2007 to 2020. Youth 5 to 15 years of age at the index ADHD visit were included in the cohort. The index ADHD visit meets at least 1 of the following criteria: (1) 1 inpatient ADHD visit, (2) 2 outpatient ADHD visits within 90 days, or (3) an ADHD medication prescription fill within 30 days of an outpatient ADHD visit. We excluded youth who had a diagnosis of DBD or a US Food and Drug Administration (FDA)-approved indication for antipsychotics at baseline. Youth were followed up until antipsychotic initiation or were censored at a loss of coverage, receipt of an FDA-indicated diagnosis, or end of the study. A Cox proportional hazards regression model with DBD as a time-varying covariate estimated the hazard of antipsychotic use after the index ADHD visit.

FINDINGS

Of 41,098 youth with ADHD who met the study criteria, 4557 were diagnosed with DBD during follow-up. The incidence of antipsychotic initiation was 19.6 (95% CI, 18.7- 20.5) per 1000 person-years. After adjustment for baseline covariates, the hazard ratio of antipsychotic initiation associated with DBD was 4.64 (95% CI, 4.15-5.18).

IMPLICATIONS

Antipsychotic use among youth with ADHD is more likely in the presence of DBD, suggesting that an off-label use is for behavior problems.

Efficacy of long-acting injectable versus oral antipsychotic drugs in early psychosis: A systematic review and meta-analysis

AIM

Long-acting injectable antipsychotic drugs (LAIs) are often used as an alternative to oral antipsychotics (OAPs) in individuals with psychosis who demonstrate poor medication adherence. Previous meta-analyses have found mixed results on the efficacy of LAIs, compared to OAPs, in patients with psychotic disorders. The objective of this meta-analysis was to compare the effectiveness of using LAIs versus OAPs in the early stages of psychosis.

METHODS

Major electronic databases were used to search for any studies examining the comparative effectiveness (i.e., relapse, adherence, hospitalization, and all-cause discontinuation) of any LAIs versus OAPs in early stages of psychosis. Studies published up to 6 June, 2019 were included and no language restriction was applied. Inclusion criteria were a diagnosis of schizophrenia or related disorder, where patients were in their first episode or had a duration of illness ≤5 years. Data were analysed using a random-effects model.

RESULTS

Fifteen studies (n = 10 584) were included, of which were 7 RCTs, 7 observational studies, and 1 post-hoc analysis. We found that LAIs provided advantages over OAPs in terms of relapse rates. No significant differences were found between LAI and OAP groups in terms of all-cause discontinuation, hospitalization, and adherence rates. However, considering only RCTs revealed advantages of LAIs over OAPs in terms of hospitalization rates.

CONCLUSIONS

LAIs may provide benefits over OAPs with respect to reducing relapse and hospitalization rates in early psychosis patients. There is a need for larger and better-designed studies comparing OAPs and LAIs specifically in early psychosis patients.

Long-acting injectable antipsychotics for early psychosis: A comprehensive systematic review

AIM

Long acting injectable (LAI) antipsychotics are an alternative to oral antipsychotic (OAP) treatment and may be beneficial for patients in the early stages of schizophrenia. This study aims to provide a comprehensive review on the efficacy of first-generation and second-generation LAI antipsychotics in recent-onset, first-episode, and early psychosis patients.

METHODS

MEDLINE, EMBASE, PsycINFO, and Web of Science Core databases were used to search for studies that used LAIs in early psychosis patients. Studies published up to 06 Jun 2019 were included with no language restrictions applied. Inclusion criteria were a diagnosis of schizophrenia or related disorder, where patients were in their first episode or had a duration of illness ≤5 years.

RESULTS

33 studies were included: 8 RCTs, 4 post-hoc analyses, 2 case reports, and 19 naturalistic studies. The majority of studies evaluated risperidone LAIs (N = 14) and paliperidone palmitate (N = 10), while the remainder investigated fluphenazine decanoate (N = 3), flupentixol decanoate (N = 2), and aripiprazole (N = 1). Two studies did not specify the LAI formulation used, and one cohort study compared the efficacy of multiple different LAI formulations.

CONCLUSIONS

While the majority of data is based on naturalistic studies investigating risperidone LAIs or paliperidone palmitate, LAIs may be an effective treatment for early psychosis patients in terms of adherence, relapse reduction, and symptom improvements. There is still a need to conduct more high quality RCTs that investigate the efficacy of different LAI formulations in early psychosis patients.

Acute Hyperkinetic Movement Disorders as a Multifactorial Pharmacodynamic Drug Interaction Between Methylphenidate and Risperidone in Children and Adolescents

PURPOSE/BACKGROUND

Acute hyperkinetic movement disorders have been reported with the concomitant use of attention-deficit/hyperactivity disorder (ADHD) stimulants and antipsychotics in children and adolescents. We analyzed postmarketing reports of suspected acute hyperkinetic movement disorder associated with concomitant use of ADHD stimulants and antipsychotics.

METHODS/PROCEDURES

We searched for postmarketing reports of acute hyperkinetic movement disorders associated with concomitant use of ADHD stimulants-antipsychotics in the US Food and Drug Administration Adverse Event Reporting System through December 6, 2019. PubMed and EMBASE were also searched for acute hyperkinetic movement reports with the concomitant use of ADHD stimulants-antipsychotics through January 13, 2020.

FINDINGS/RESULTS

We identified 36 cases resulting in acute hyperkinetic movement disorder associated with the concomitant use of ADHD stimulants-antipsychotics, 19 of which were also identified in the medical literature. From an ADHD stimulant perspective, methylphenidate products accounted for the largest number of cases (n = 23 [64%]), followed by amphetamine products (n = 9 [25%]) and atomoxetine (n = 4 [11%]). From an antipsychotic perspective, all 36 cases were reported with second-generation antipsychotics, particularly risperidone (n = 20 [56%]). Most of the cases were reported in boys (n = 31 [86%]) aged 6 to 12 years (n = 27 [75%]). Approximately 53% of the cases reported a time to onset within 24 hours of the drug change. Acute dystonic reactions (n = 27 [75%]) were the most frequently reported movement disorder.

IMPLICATIONS/CONCLUSIONS

As outlined in changes to the US prescribing information for all methylphenidate and risperidone products, health care professionals should be aware that changes to this combination may be associated with a pharmacodynamic drug-drug interaction resulting in acute hyperkinetic movement disorder.

Movement disorders and use of risperidone and methylphenidate: a review of case reports and an analysis of the WHO database in pharmacovigilance

For patients with attention deficit hyperactivity disorder and comorbid conduct-dissocial disorder, a combination therapy of the psychostimulant methylphenidate and the antipsychotic risperidone may be prescribed. Case reports describe the occurrence of movement disorders under this combination therapy, but clinical trials had limited power to detect these events. This study aimed (1) to summarise published case reports and (2) to analyse pharmacovigilance data consisting of adverse drug event reports to elucidate these reactions. PubMed, Embase, and APA PsycInfo were used to retrieve case reports. For the pharmacovigilance data, aggregated information on individual case safety reports (ICSRs) within the database of suspected adverse drug events by the WHO were analysed. ICSRs were assessed for disproportionality in reporting. Thirteen published case reports (62% male) on movement disorders were identified, with ages between 5 and 15 years. Seven reports (54%) described incidents when risperidone was tapered down or switched to methylphenidate. From the WHO, we identified 25,556 ICSRs (16,118 for methylphenidate, 8,614 for risperidone, and 824 for both). Of these, 953 (5.9%), 1356 (15.7%), and 159 (19.3%) ICSRs reported movement disorders in association with methylphenidate, risperidone or both, respectively. The analyses on disproportionality showed an increased number of ICSRs with movement disorders when the two drugs were coded in combination. The potential of movement disorders as adverse effects might be amplified when methylphenidate and risperidone are used in combination. The results from the literature underline the necessity of caution and patient monitoring when risperidone dosing is modified during methylphenidate therapy.

A comparison of the metabolic side-effects of the second-generation antipsychotic drugs risperidone and paliperidone in animal models

BACKGROUND

The second generation antipsychotic drugs represent the most common form of pharmacotherapy for schizophrenia disorders. It is now well established that most of the second generation drugs cause metabolic side-effects. Risperidone and its active metabolite paliperidone (9-hydroxyrisperidone) are two commonly used antipsychotic drugs with moderate metabolic liability. However, there is a dearth of preclinical data that directly compares the metabolic effects of these two drugs, using sophisticated experimental procedures. The goal of the present study was to compare metabolic effects for each drug versus control animals.

METHODS

Adult female rats were acutely treated with either risperidone (0.1, 0.5, 1, 2, 6 mg/kg), paliperidone (0.1, 0.5, 1, 2, 6 mg/kg) or vehicle and subjected to the glucose tolerance test; plasma was collected to measure insulin levels to measure insulin resistance with HOMA-IR. Separate groups of rats were treated with either risperidone (1, 6 mg/kg), paliperidone (1, 6 mg/kg) or vehicle, and subjected to the hyperinsulinemic euglycemic clamp.

RESULTS

Fasting glucose levels were increased by all but the lowest dose of risperidone, but only with the highest dose of paliperidone. HOMA-IR increased for both drugs with all but the lowest dose, while the three highest doses decreased glucose tolerance for both drugs. Risperidone and paliperidone both exhibited dose-dependent decreases in the glucose infusion rate in the clamp, reflecting pronounced insulin resistance.

CONCLUSIONS

In preclinical models, both risperidone and paliperidone exhibited notable metabolic side-effects that were dose-dependent. Differences between the two were modest, and most notable as effects on fasting glucose.

Duration of Neurocognitive Impairment With Medical Cannabis Use: A Scoping Review

While the recreational use of cannabis has well-established dose-dependent effects on neurocognitive and psychomotor functioning, there is little consensus on the degree and duration of impairment typically seen with medical marijuana use. Compared to recreational cannabis users, medical cannabis patients have distinct characteristics that may modify the presence and extent of impairment. The goal of this review was to determine the duration of acute neurocognitive impairment associated with medical cannabis use, and to identify differences between medical cannabis patients and recreational users. These findings are used to gain insight on how medical professionals can best advise medical cannabis patients with regards to automobile driving or safety-sensitive tasks at work. A systematic electronic search for English language randomized controlled trials (RCTs), clinical trials and systematic reviews (in order to capture any potentially missed RCTs) between 2000 and 2019 was conducted through Ovid MEDLINE and EMBASE electronic databases using MeSH terms. Articles were limited to medical cannabis patients using cannabis for chronic non-cancer pain or spasticity. After screening titles and abstracts, 37 relevant studies were subjected to full-text review. Overall, seven controlled trials met the inclusion/exclusion criteria and were included in the qualitative synthesis: six RCTs and one observational clinical trial. Neurocognitive testing varied significantly between all studies, including the specific tests administered and the timing of assessments post-cannabis consumption. In general, cognitive performance declined mostly in a THC dose-dependent manner, with steady resolution of impairment in the hours following THC administration. Doses of THC were lower than those typically reported in recreational cannabis studies. In all the studies, there was no difference between any of the THC groups and placebo on any neurocognitive measure after 4 h of recovery. Variability in the dose-dependent relationship raises the consideration that there are other important factors contributing to the duration of neurocognitive impairment besides the dose of THC ingested. These modifiable and non-modifiable factors are individually discussed.

Inter-class Concomitant Pharmacotherapy in Medicaid-Insured Youth Receiving Psychiatric Residential Treatment

Background: Concomitant pharmacotherapy has become increasingly common in the treatment of youth, including in psychiatric residential treatment facilities (PRTF) despite limited efficacy and safety data. Research is reported on the prevalence of any class and interclass concomitant pharmacotherapy, specific class combinations of psychotropics, and changes in number of medications from admission to discharge for Medicaid insured youth treated in PRTFs in one mid-Atlantic state. Methods: Medicaid administrative claims data were examined for youth under age 18 years who were discharged from one of 21 PRTFs during calendar year 2019. Descriptive statistics were calculated to examine patterns of service utilization 90 days prior to admission. The rates of concomitant psychotropic use at admission were compared to the rates at discharge. Logistic regression models were used to examine covariates associated with discharging on 4 or more medications. Results: Fifty-four % of youth were admitted on either two or three psychotropics, while 25% were admitted on four or more psychotropics. The proportion of youth admitting and discharging on 2 or 3 medications was stable. There was a 27% increase in number of youth discharging on 4 medications with a 24% decrease in those on a 5- drug regimen. Only the number of medications prescribed at admission was found to be significant (p < 0.001), with more medications at admission contributing to probability of discharging on 4 or more medications. Conclusions: Concomitant pharmacotherapy is common in PRTFs. These findings support the practice of deprescribing and underscore the need for further research.

A Focused Review of the Metabolic Side-Effects of Clozapine

The second generation antipsychotic drug clozapine represents the most effective pharmacotherapy for treatment-resistant psychosis. It is also associated with low rates of extrapyramidal symptoms and hyperprolactinemia compared to other antipsychotic drugs. However, clozapine tends to be underutilized in clinical practice due to a number of disabling and serious side-effects. These are characterized by a constellation of metabolic side-effects which include dysregulation of glucose, insulin, plasma lipids and body fat. Many patients treated with clozapine go on to develop metabolic syndrome at a higher rate than the general population, which predisposes them for Type 2 diabetes mellitus and cardiovascular disease. Treatments for the metabolic side-effects of clozapine vary in their efficacy. There is also a lack of knowledge about the underlying physiology of how clozapine exerts its metabolic effects in humans. In the current review, we focus on key studies which describe how clozapine affects each of the main symptoms of the metabolic syndrome, and cover some of the treatment options. The clinical data are then discussed in the context of preclinical studies that have been conducted to identify the key biological substrates involved, in order to provide a better integrated overview. Suggestions are provided about key areas for future research to better understand how clozapine causes metabolic dysregulation.

A cross sectional study of psychotropic medicine use in Australia in 2018: A focus on polypharmacy

AIMS

To examine prescribed psychotropic medicine use on a given day in Australia (25 September 2018; World Pharmacists Day), with a focus on psychotropic polypharmacy.

METHODS

We used a 10% sample of individual-level nationwide dispensing claims to examine psychotropic medicine use on a given day. We estimated the prevalence of psychotropic medicine use in all ages stratified by age and sex. We also calculated the observed vs expected (had medicines been randomly combined) prevalence of psychotropic combinations used. We focused on combinations of clinical significance as well combinations of psychotropics with medicines prescribed to manage cardiovascular risk and disease.

RESULTS

Serotonin reuptake inhibitors, serotonin-noradrenalin reuptake inhibitors/noradrenaline reuptake inhibitors, tricyclic antidepressants and gabapentinoids dominated psychotropic use. The use of any psychotropic as a proportion of people in the Australian population increased with age, peaking at the 85-89 year age group and declining thereafter. Combinations of medicines from the same subclass generally occurred at lower than expected frequencies. However, combinations including atypical antipsychotics occurred more frequently than expected; e.g. 7.4× with anticonvulsants and 2.2× with other atypical antipsychotics. This was also the case for combinations of sedatives, e.g. anxiolytic with hypnotic benzodiazepines (3.8×). Lipid-lowering drugs and antidiabetic medicines were combined with psychotropics at frequencies close to those expected had they been randomly combined.

CONCLUSION

Psychotropic use in older adults and certain psychotropic combinations that are not well supported with evidence remain prevalent and greater consideration of the drivers of this potentially inappropriate prescribing is required.

Differential Effects of Acute Treatment With Antipsychotic Drugs on Peripheral Catecholamines

Antipsychotic drugs represent the most effective treatment for chronic psychotic disorders. The newer second generation drugs offer the advantage of fewer neurological side-effects compared to prior drugs, but many cause serious metabolic side-effects. The underlying physiology of these side-effects is not well-understood, but evidence exists to indicate that the sympathetic nervous system may play an important role. In order to examine this possibility further, we treated separate groups of adult female rats acutely with either the first generation antipsychotic drug haloperidol (0.1 or 1 mg/kg) or the second generation drugs risperidone (0.25 or 2.5 mg/kg), clozapine (2 or 20 mg/kg), olanzapine (3 or 15 mg/kg) or vehicle by intraperitoneal injection. Blood samples were collected prior to drug and then 30, 60, 120, and 180 mins after treatment. Plasma samples were assayed by HPLC-ED for levels of norepinephrine, epinephrine, and dopamine. Results confirmed that all antipsychotics increased peripheral catecholamines, although this was drug and dose dependent. For norepinephrine, haloperidol caused the smallest maximum increase (+158%], followed by risperidone (+793%), olanzapine (+952%) and clozapine (+1,684%). A similar pattern was observed for increases in epinephrine levels by haloperidol (+143%], olanzapine (+529%), risperidone (+617%) then clozapine (+806%). Dopamine levels increased moderately with olanzapine [+174%], risperidone [+271%], and clozapine [+430%]. Interestingly, levels of the catecholamines did not correlate strongly with each other prior to treatment at baseline, but were increasingly correlated after treatment as time proceeded. The results demonstrate antipsychotics can potently regulate peripheral catecholamines, in a manner consistent with their metabolic liability.

Suicidal and non-suicidal self-injurious behaviour in patients with bipolar disorder and comorbid attention deficit hyperactivity disorder after initiation of central stimulant treatment: a mirror-image study based on the LiSIE retrospective cohort

BACKGROUND

Currently, our understanding regarding treatment of adult attention deficit hyperactivity disorder (ADHD) co-occurring with bipolar disorder (BD) remains limited. The aim of this study was to evaluate the impact of central stimulant (CS) treatment on suicidal and non-suicidal self-injurious behaviour in patients with a pre-existing diagnosis of BD or schizoaffective disorder (SZD). Specifically, we tested the hypothesis that CS treatment significantly decreased the number of suicide attempts and non-suicidal self-injury events.

METHODS

A mirror-image study in patients with a dual diagnosis of BD or SZD and ADHD, comparing suicide attempts and non-suicidal self-injury events within 6 months and 2 years before and after CS initiation. This study was part of a retrospective cohort study (LiSIE) into effects and side-effects of lithium for maintenance treatment of BD as compared with other mood stabilisers.

RESULTS

Of 1564 eligible patients, 206 patients met the inclusion criteria. Within the 6 months after CS initiation, suicide attempts and non-suicidal self-injury events decreased significantly, both in terms of numbers of patients having such events (p = 0.013) and numbers of events experienced (p = 0.004). These effects were preserved 2 years after CS initiation.

CONCLUSIONS

CS treatment may reduce the risk of suicide attempts and non-suicidal self-injury events in patients with a dual diagnosis of BD or SZD and ADHD. Based on our findings, clinicians should not withhold CS treatment from patients with concomitant ADHD for fear of deterioration of the underlying BD. However, to minimise the risk of manic episodes concomitant mood stabiliser treatment and close monitoring remains warranted.

Use and Characteristics of Antipsychotic/Methylphenidate Combination Therapy in Children and Adolescents with a Diagnosis of Attention-Deficit/Hyperactivity Disorder

OBJECTIVE

Children and adolescents with attention-deficit/hyperactivity disorder (ADHD) frequently have comorbidities that are potential indications for antipsychotics (APs). Some studies have suggested that the combined use of methylphenidate (MPH) and APs is increasing in this population group. Longitudinal analyses and in-depth investigations on the substance level are lacking. This study aimed to estimate the cumulative proportion of concomitant AP/MPH use in children and adolescents with ADHD over a follow-up of up to 9 years and to describe patient characteristics stratified by specific AP drug.

METHODS

Based on claims data, concomitant AP/MPH use was identified among 67,595 children and adolescents with ADHD starting MPH treatment between 2005 and 2013. Characteristics and diagnoses-including those indicating appropriateness of AP use according to approved indications and/or guidelines-were examined at the time of first AP/MPH combination therapy. In addition, subsequent use of AP/MPH combination therapy was evaluated.

RESULTS

The cumulative proportion of individuals with any AP/MPH combination therapy rose to over 6% within 9 years after initiating MPH. The most frequent APs first used in combination with MPH were risperidone (72%), pipamperone (15%), and tiapride (8%). Percentages of psychiatric hospitalization in the year preceding the first combination therapy with MPH were 33%, 43%, and 19%, respectively. The proportion of individuals with potentially appropriate use was high (>72%) in risperidone/MPH and tiapride/MPH and low (15%) in pipamperone/MPH combination users. Conduct disorders and tic disorders were frequent in users who were prescribed MPH with risperidone and tiapride, respectively. One-quarter of patients with AP/MPH combination therapy were one-time-only combination users.

CONCLUSION

Our study suggests that a considerable proportion of children and adolescents with ADHD receive MPH in combination with APs and that this is a factor not only during the first years of MPH treatment. ADHD guidelines should specify algorithms concerning the use of AP medication.

Psychotropic Treatment Pattern in Medicaid Pediatric Patients With Concomitant ADHD and ODD/CD

OBJECTIVE

To describe psychotropic treatment pattern and evaluate the association of socio-demographic factors and psychotropic combination therapy in children with ADHD and oppositional defiant disorder/conduct disorder (ODD/CD).

METHOD

This is a cross-sectional drug utilization study based on Medicaid fee-for-service programs in 26 U.S. states (1999-2006). Children aged 4 to 18 with concomitant ADHD and ODD/CD were included. We calculated the prevalence of psychotropic drugs and used logistic regression to evaluate the role of socio-demographic factors in psychotropic combination therapy.

RESULTS

We identified 121,740 children with ADHD and ODD/CD (140,777 person-years). The period prevalence of "no psychotropic therapy," psychotropic monotherapy, and psychotropic dual therapy was 38.1%, 44.7%, and 9.0%, respectively. The most common drug class was stimulants. Whites, males, and children in foster care were more likely to use psychotropic combination therapy. State-level variation was observed.

CONCLUSION

"No psychotropic therapy" and stimulants dominate treatment choices in children with ADHD and ODD/CD. Socio-demographic characteristics are associated with combination psychotropic therapy.

Psychotropic Polypharmacy Among Children and Youth Receiving Medicaid, 2012-2015

BACKGROUND

The rates of mental health diagnoses in children have increased. Children in poverty have the highest rates. The use of psychotropic medication for children has been increasing, which is concerning because of the unknown long-term effects and the increased burden on the health care system. The state of Kentucky ranks among the highest in the United States for children with mental health problems, children living in poverty, and children receiving psychotropic medication.

OBJECTIVE

To examine recent trends and determinants of interclass psychotropic polypharmacy (PP) use for children and youth receiving Medicaid to inform intervention development.

METHODS

A retrospective cohort study was conducted using 2012-2015 Kentucky Medicaid claims for children aged 0-17 years, with continuous enrollment for ≥ 90 days with at least 1 behavioral health diagnosis (N = 237,393). Interclass PP was defined as the presence of at least 2 psychotropic medication prescription fills for at least 2 different classes of medication that, if taken as directed, would be used concurrently for at least 90 consecutive days (allowing for a single 15-day lag). The outcome variables were the presence of any interclass PP and the number of months a child received interclass PP. We conducted a descriptive analysis and developed 2 separate generalized linear regression models to test for associations between individual characteristics of children treated with psychotropic medication for ≥ 90 days (n = 75,639) and each outcome of interest.

RESULTS

For the sample of children with at least 90 days of psychotropic medication treatment, 38% had at least 3 covered months of PP over the 4 years studied. Children in foster care received alpha agonists (116 vs. 69 per 1,000 children) or antidepressants (225 vs. 176 per 1,000) at a higher rate than other children receiving Medicaid but received stimulants at a lower rate (403 vs. 638 per 1,000). The primary 2-drug class combinations were stimulants with either alpha agonists or antidepressants. Children in foster care (OR = 1.7, 95% CI = 1.58, 1.84, P < 0.001), with a bipolar disorder (OR = 2.24, 95% CI = 2.10, 2.38, P < 0.001), mood disorder not otherwise specified (OR = 1.11, 95% CI = 1.04, 1.17, P < 0.001), or autism spectrum disorders (OR = 1.17, 95% CI = 1.08, 1.26, P < 0.001) had increased the odds of ever receiving PP. Black children had lower odds (OR = 0.72, 95% CI = 0.67, 0.77, P < 0.001) of ever receiving PP. Children aged 6-11 years (beta = 3.08, 95% CI = 2.87, 3.29) and 12-17 years (beta = 1.61, 95% CI = 1.38, 1.83) had more covered months with PP compared with those aged 0-5 years. Black children had fewer covered months of PP compared with white children (beta = -1.36, 95% CI = -1.61, -1.11]. Children in foster care (beta = 1.83, 95% CI = 1.53, 2.13) had more covered months with PP. Children residing in nonurban areas had fewer months with PP (beta = -0.4, 95% CI = -0.54, -0.26) compared with those residing in urban areas, as did those children with depression (beta = -3.32, 95% CI = -3.55, -3.1), impulse control disorder (beta = -2.07, 95% CI = -2.28, -1.85), and conduct disorder (beta = -1.34, 95% CI = -1.64, -1.05). Children with bipolar disorder (beta = 3.62, 95% CI = 3.38, 3.86) and autism (beta = 2.04, 95% CI = 1.75, 2.33) had more covered months with PP. As comorbidity increased, the duration of PP treatment increased (beta = 2.49, 95% CI = 2.36, 2.62).

CONCLUSIONS

The rates of PP are concerning, especially for children in foster care and children aged 6-11 years. Efforts to safeguard medication use are needed, as well as future exploration of racial differences in PP.

DISCLOSURES

This project was supported by the Kentucky Cabinet for Health and Family Services, Department for Medicaid; Norton Healthcare; and the School of Medicine, Department of Pediatrics; School of Public Health and Information Sciences; and Kent School of Social Work at the University of Louisville. Kentucky Medicaid approved the use of the data and granted permission to publish but played no role in the interpretation of data. Lui is employed by Kentucky Medicaid. The other authors report no potential conflicts of interest. An earlier version of this study was presented at the Pediatric Academic Societies' Annual Meeting in Baltimore, MD, on April 30-May 3, 2016. A poster presentation was given at the Society for Developmental and Behavioral Pediatrics in Cleveland, OH, on October 14-16, 2017.

Long-Term Metabolic Effects in French-Canadian Children and Adolescents Treated with Second-Generation Antipsychotics in Monotherapy or Polytherapy: A 24-Month Descriptive Retrospective Study

OBJECTIVE

To compare weight and glucose changes of long-term second-generation antipsychotic (SGA) monotherapy versus polytherapy (switching or combining SGAs) in children and adolescents.

METHODS

This is a 24-month retrospective study conducted between November 2005 and June 2013. From 147 antipsychotic-naive patients selected (mean age, 12.8 years; 95% confidence interval [CI], 9.8-15.9), 116 (78.9%) received SGA monotherapy and 31 (21.1%) SGA polytherapy for up to 24 months. Height, weight, and fasting glucose (FG) were measured at baseline and 1, 3, 6, 12, and 24 months. Linear mixed-model analysis was used to compare weight, body mass index z score (BMI z score), and glucose changes between the 2 SGA treatment groups, with the repeated factor being the time relative to baseline at 1, 3, 6, 12, and 24 months.

RESULTS

Overall, after 24 months of SGA treatment, mean weight increased significantly by 12.8 kg (95% CI, 10.4-15.0), BMI z score by 0.44 (95% CI, 0.21-0.68), and FG levels by 0.29 mmol/L (95% CI, 0.11-0.47). Incidence of overweight/obesity was 22.6%, BMI z score increase over 0.5 was 9.4%, impaired fasting glucose was 9.4%, and type 2 diabetes mellitus was 3.1%. Regarding metabolic effects, no significant difference was found between the subjects taking a single SGA and those exposed to an SGA polytherapy.

CONCLUSION

Our study confirms the significant increase of metabolic complications during 24 months of SGA treatment without excluding or confirming a difference between the 2 groups of treatment (mono vs. poly).

Extent and Risks of Antipsychotic Off-Label Use in Children and Adolescents in Germany Between 2004 and 2011

OBJECTIVE

Only little is known about antipsychotic (AP) off-label use (OLU) in pediatric populations. It was the aim of this study to examine the frequency as well as the risks of off-label AP use in underaged patients.

METHODS

To calculate the frequency of off-label AP prescriptions for the years 2004-2011, we used claims data of more than two million minors aged 0-17 years. Off-label prescriptions were analyzed with regard to type of OLU, physician specialty, and underlying diagnoses. Incidence rates of selected adverse events were calculated for on-label as well as for OLU. The risk of poisoning associated with on- or OLU was assessed in a nested case-control study.

RESULTS

The annual share of pediatric AP users with off-label prescriptions varied between 52.3% and 71.1%. OLU by indication (42.8%-66.5%) was the most common type of OLU. Of the subjects with OLU by indication, 52.5% had a diagnosis of hyperkinetic disorder. Adverse events were scarce (incidence rates between 0.8 and 8.6 per 10,000 person-years), and no significant difference was observed between on- and OLU.

CONCLUSION

Because of their frequent use in hyperkinetic disorder patients, APs are commonly prescribed off-label for minors. Since OLU by contraindication was rare and the risk of the adverse events under study was similarly small for on- and OLU, this is not necessarily an indication for inappropriate treatment. It rather indicates that further randomized studies are needed to examine efficacy and safety of pediatric AP use in this indication.

Outpatient antipsychotic drug use in children and adolescents in Germany between 2004 and 2011

Studies from different countries showed increasing use of antipsychotics in pediatric patients. However, these studies were methodologically limited and could not assess underlying diagnoses and off-label use sufficiently. This is the first study to examine antipsychotic prescriptions in a representative sample of minors over a long period, looking at changes regarding substances and drug classes, underlying diagnoses, and the rate of off-label use. Claims data of about two million pediatric subjects were used to calculate annual prevalences and incidence rates of antipsychotic prescriptions for the years 2004-2011. Analyses were stratified by sex, age, and drug type. Numbers of prescriptions, frequencies of diseases/disorders, the prescribing physicians' specialties, and the share of off-label prescriptions were examined. During the study period, the prevalence of antipsychotic prescriptions ranged between 2.0 and 2.6 per 1000 minors. Antipsychotic prescriptions in children younger than 6 years decreased from 2.42 per 1000 subjects in 2004 to 0.48 in 2011. Among antipsychotic users, 47.0 % had only one prescription and hyperkinetic disorder was, by far, the most frequent diagnosis. The annual share of off-label prescriptions varied between 61.0 and 69.5 %. Antipsychotics were mainly prescribed to manage aggressive and impulsive behaviors in hyperkinetic disorder patients. This explains the high share of off-label prescriptions but raises concerns, since efficacy and safety of antipsychotics in this indication have not been sufficiently investigated. The decreasing antipsychotic use in younger children and the high proportion of antipsychotic users with one-time prescriptions are striking and should be further investigated in the future.

Practitioner Review: Psychological treatments for children and adolescents with conduct disorder problems - a systematic review and meta-analysis

BACKGROUND

This meta-analysis evaluates the efficacy of nonpharmacological treatments for conduct disorder (CD) problems in children and adolescents, based on child, parent and teacher report.

METHODS

PubMed, PsycINFO and EMBASE were searched for peer-reviewed articles published between January 1970 and March 2015. Main inclusion criteria were nonpharmacological treatment, participants younger than 18 years, clinical CD problems/diagnosis, randomized controlled trials and inclusion of at least one CD problem-related outcome. Treatment efficacy is expressed in effect sizes (ESs) calculated for each rater (parent, teacher, self and blinded observer).

RESULTS

Of 1,549 articles retrieved, 17 (published between June 2004 and January 2014) describing 19 interventions met the inclusion criteria. All studies used psychological treatments; only three studies included a blinded observer to rate CD problems. Most studies were of very poor to fair quality. ESs were significant but small for parent-reported outcomes (0.36, 95% CI = 0.27-0.47), teacher-reported outcomes (0.26, 95% CI = 0.12-0.49) and blinded observer outcomes (0.26, 95% CI = 0.06-0.47), and they were nonsignificant for self-reported outcomes (-0.01, 95% CI = -0.25 to 0.23). Comorbidity, gender, age, number of sessions, duration, intervention type, setting, medication use or dropout percentage did not influence the effect of treatment.

CONCLUSIONS

Psychological treatments have a small effect in reducing parent-, teacher- and observer-rated CD problems in children and adolescents with clinical CD problems/diagnosis. There is not enough evidence to support one specific psychological treatment over another. Future studies should investigate the influence of participant characteristics (e.g. age of CD onset), use more homogeneous outcome measures and allow better evaluation of study quality. Many reports failed to provide detailed information to allow optimization of psychological treatment strategies.

Behavioral Weight Loss Treatment in Antipsychotic Treated Youth

BACKGROUND

Antipsychotic-treated youth have increased risk for the development of obesity and type 2 diabetes. Behavioral weight loss treatments show promise in reducing obesity and diabetes risk in antipsychotic treated adults, but have received no study in antipsychotic treated youth.

OBJECTIVE

We describe a rationale for behavioral weight loss interventions in high-weight antipsychotic treated youth, and report behavioral, anthropomorphic, and metabolic findings from a case series of obese antipsychotic-treated adolescents participating in a short-term, family-based behavioral weight loss intervention.

METHODS

We adapted the Traffic Light Plan, a 16-week family-based weight loss intervention that promotes healthy energy balance using the colors of the traffic light to categorize the nutritional value of foods and intensity of physical activity, adapting a social ecological framework to address health behavior change in multiple social contexts. The intervention was administered to three obese adolescents with long-term antipsychotic medication exposure. Efficacy of the intervention was evaluated with a battery of anthropomorphic and metabolic assessments including weight, body mass index percentile, whole body adiposity, liver fat content, and fasting plasma glucose and lipids. Participants and their parents also filled out a treatment satisfaction questionnaire upon study completion.

RESULTS

Two males and 1 female (all aged 14 years) participated. All 3 participants attended all 16 sessions, and experienced beneficial changes in adiposity, fasting lipids and liver fat content associated with weight stabilization or weight loss. Adolescents and their parents all reported a high level of satisfaction with the treatment.

CONCLUSIONS

Family-based behavioral weight loss treatment can be feasibly delivered and is acceptable to antipsychotic-treated youth and their families. Randomized controlled trials are needed to fully evaluate the effectiveness and acceptability of behavioral weight loss interventions in antipsychotic treated youth and their families.

Pharmacotherapy of Aggression in Child and Adolescent Psychiatric Disorders

OBJECTIVE

Aggression is a common, yet complex, behavioral complaint, and a frequent indication for referral to child and adolescent psychiatrist treatment. This article reviews the evidence supporting pharmacotherapy of aggression in youth, with a primary focus on impulsive aggression (the primary indication for this intervention). Relevant diagnostic considerations and consensus guidelines are discussed.

METHODS

Articles examining the role of medications in the treatment of aggression in youth with pathological aggression were identified using PubMed and MEDLINE® databases over the past 15 years (2000-2015); selected articles published prior to 2000 and deemed to be of high relevance were searched and also included. Search terms included: Aggression, aggressive, disruptive behavior, conduct, youth, children, and adolescents. Cited references were also searched for relevant articles.

RESULTS

There are a number of evidence-based medication treatments for aggression, which are generally best considered in the context of differential diagnosis and ongoing evidence-based psychosocial interventions. Impulsive aggression is generally considered the type of aggression most amenable to medication, but other aggression subtypes may also possibly respond to treatment. Medication classes with positive evidence include the psychostimulants and α-2 agonists (in the presence of attention-deficit/hyperactivity disorder [ADHD] and/or disruptive behavior disorders), mood stabilizing agents, and atypical antipsychotics. Published guidelines recommend systematic and adequate trials of medications in sequential order, to optimize response and minimize polypharmacy. Guidelines for safety monitoring are available for many of the medications used for aggression in youth, and are also discussed.

CONCLUSIONS

Aggression in children carries a high risk of poor outcomes, and, therefore, a better understanding of treatment options is a high priority. The available literature points to the importance of identifying the underlying disorder, when possible, and using this information to guide treatment selection. Future studies are needed to better inform the treatment of aggression across disorders, and the treatment of different aggression subtypes.

Adiposity and Cardiometabolic Risk in Children With and Without Antipsychotic Drug Treatment

CONTEXT

Pediatric obesity is common, particularly in children treated with antipsychotic medications. Antipsychotic exposure can increase cardiometabolic risk by increasing adiposity, and possibly via other adiposity-independent pathways.

OBJECTIVE

The objectives were to characterize relationships of adiposity with intrahepatic triglyceride (IHTG) content and carotid intima media thickness (CIMT) in children with and without antipsychotic drug treatment, and to explore whether vitamin D alters any effects in these relationships.

DESIGN

This was a cross-sectional case-control study.

SETTING

The setting was an academic medical center.

PATIENTS OR OTHER PARTICIPANTS

Participants were 44 children (ages, 6-19 y): 25 cases treated with antipsychotic and other psychotropic drug therapies and 19 untreated controls, frequency-matched on age, gender, and body mass index.

MAIN OUTCOME MEASURES

Main outcome measures were dual-energy x-ray absorptiometry percentage body fat (DEXA %fat), IHTG measured by magnetic resonance spectroscopy, and CIMT measured by ultrasonography. Fasting blood glucose, insulin, lipids, C-reactive protein, and liver enzymes were also evaluated.

RESULTS

There were no significant differences between cases and controls on measures of IHTG, CIMT, or DEXA %fat. In combined crude and adjusted analyses, DEXA %fat predicted IHTG (R(2) = 0.30) but not CIMT. Low levels of vitamin D were associated with larger effects of DEXA %fat on IHTG.

CONCLUSION

In treated and untreated children alike, adiposity is a significant predictor of liver fat content. This relationship was altered by low vitamin D level. These results suggest a modifiable pathway to hepatic steatosis. Further research is needed to test the hypothesis that children with high adiposity and low vitamin D have particularly increased risks for the development of fatty liver.

Combined stimulant and antipsychotic treatment in adolescents with attention-deficit/hyperactivity disorder: a cross-sectional observational structural MRI study

Meta-analyses suggest normalizing effects of methylphenidate on structural fronto-striatal abnormalities in patients with attention-deficit/hyperactivity disorder (ADHD). A subgroup of patients receives atypical antipsychotics concurrent with methylphenidate. Long-term safety and efficacy of combined treatment are unknown. The current study provides an initial investigation of structural brain correlates of combined methylphenidate and antipsychotic treatment in patients with ADHD. Structural magnetic resonance imaging was obtained in 31 patients who had received combined methylphenidate and antipsychotic treatment, 31 matched patients who had received methylphenidate but not antipsychotics, and 31 healthy controls (M age 16.7 years). We analyzed between-group effects in total cortical and subcortical volume, and in seven frontal cortical and eight subcortical-limbic volumes of interest, each involved in dopaminergic neurotransmission. Patients in the combined treatment group, but not those in the methylphenidate only group, showed a reduction in total cortical volume compared to healthy controls (Cohen's d = 0.69, p < 0.004), which was apparent in most frontal volumes of interest. Further, the combined treatment group, but not the methylphenidate group, showed volume reduction in bilateral ventral diencephalon (Left Cohen's d = 0.48, p < 0.04; Right Cohen's d = 0.46, p < 0.05) and the left thalamus (Cohen's d = 0.47, p < 0.04). These findings may indicate antipsychotic treatment counteracting the normalizing effects of methylphenidate on brain structure. However, it cannot be ruled out that pre-existing clinical differences between both patient groups may have resulted in anatomical differences at the time of scanning. The absence of an untreated ADHD group hinders unequivocal interpretation and implications of our findings.

Predictors of concomitant use of antipsychotics and stimulants and its impact on stimulant persistence in pediatric attention deficit hyperactivity disorder

BACKGROUND

Concomitant use of stimulants and atypical antipsychotics is common in pediatric attention deficit hyperactivity disorder (ADHD). However, little is known about the determinants of concomitant use and its utility in the management of pediatric ADHD.

OBJECTIVES

To (a) examine predictors of concomitant stimulant and atypical antipsychotic use and (b) evaluate the impact of concomitant atypical antipsychotic use on the persistence of stimulants in children and adolescents diagnosed with ADHD.

METHODS

The retrospective cohort study was conducted using 4 years (January 2004-December 2007) of IMS LifeLink claims data. The study population included children and adolescents aged 6-16 years with a diagnosis of ADHD and those who initiated long-acting stimulants (LAS) from July 2004 to December 2006. Patients were followed for 1 year after index stimulant use. Concomitant use was defined as the concurrent prescription for LAS and atypical antipsychotic agents with at least 14 days overlap after the index LAS claim. Persistence was measured by summing the total number of days a patient remained on the index LAS from the index prescription date with an allowable gap of no more than 30 days. Multiple logistic regression within the conceptual framework of the Andersen Behavioral Model was performed to determine the predictors of concomitant stimulant and atypical antipsychotic use. Multivariate Cox proportional hazards regression within the conceptual framework of the Andersen Behavioral Model was used to examine the impact of concomitant atypical antipsychotic use on persistence of stimulants.

RESULTS

The study cohort consisted of 39,981 children who initiated LAS treatment. Most (96.10%) received LAS monotherapy, and 3.90% received LAS and atypical antipsychotic concomitantly. The multiple logistic regression analysis found that gender, health insurance, region, year of cohort entry, season, physician specialty, coexisting mental health conditions, and general mental health status influenced the concomitant use of LAS and atypical antipsychotic agents. Bivariate analyses revealed that concomitant users had longer persistence (by 71 days) than the stimulant-alone users. Cox proportional hazards regression revealed that concomitant atypical antipsychotic was associated with improvement in LAS persistence by 15% (HR = 0.85, 95% CI = 0.76-0.94) in comparison with the LAS recipients who did not use atypical antipsychotic concomitantly. Other factors such as age, region, season, coexisting mental health conditions, use of comedications, and general mental health status influenced the LAS treatment persistence among children and adolescents.

CONCLUSIONS

Various predisposing, enabling, and need factors were associated with the concomitant stimulant and atypical antipsychotic use. Concomitant use of atypical antipsychotics was associated with improved LAS treatment persistence in children and adolescents with ADHD.

Therapeutic drug levels of second generation antipsychotics in youth: a systematic review

OBJECTIVE

In children and adolescents, the prevalence rate of mental illness is claimed to be as high as 10-20%. Effective pharmacological treatments are available for use in children, adolescents, and adults; however, most of what is known about the effects of these treatments has been confirmed in clinical studies involving adults only. Second generation antipsychotic drugs (SGAs) are the most common class of antipsychotic medication used in pediatric populations, and these drugs are increasingly being used for disorders other than psychosis. Many SGAs are routinely used in pediatric care, and the vast majority of use in this population is off label. Children, adolescents, and adults differ in age, weight, height, and metabolism, which may lead to pharmacokinetic differences in how drugs ultimately affect target tissues. The aim of this review is to summarize and evaluate the literature that investigated blood plasma levels of SGAs in youth.

METHODS

Plasma levels were assessed in relation to their administered dose, indication, and therapeutic range (if known). Studies were limited to those evaluating oral administration only. A systematic electronic database search for peer-reviewed articles published between 2000 and 2013 was conducted. Twenty-one articles were included in the review. Additional articles for discussion were also included throughout the article.

RESULTS

The only SGA that may require routine therapeutic drug monitoring (TDM) in youth given the current body of research is clozapine. Highly variable results were seen in studies of aripiprazole, olanzapine, and risperidone, indicating that more research is needed on plasma levels with these drugs. Quetiapine maintained a similar profile to that found in adults, with no dosage adjustments or indications of TDM.

CONCLUSION

TDM may be indicated in any circumstance in which cytochrome P450 inhibitors or inducers are coprescribed. Further research is required for establishing a sounder safety profile for SGA use in the pediatric population.

DSM-5: disruptive mood dysregulation disorder

This paper will describe historical perspectives for the introduction of disruptive mood dysregulation disorder in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), criteria for the diagnosis, as well as information on epidemiology, clinical presentation and longitudinal course, pathophysiology, and treatment. The diagnosis of disruptive mood dysregulation disorder requires frequent, persistent, severe temper outbursts out of proportion to the situation and developmental context in combination with persistent, angry/irritable mood between the temper outbursts. Because of the limited available data, the inclusion of this new diagnosis in DSM-5 has been controversial. Regardless of this controversy, it is clear that youth experiencing such symptoms are highly impaired and utilize significant health services. Therefore, we need to expand our efforts to better understand the complex construct of this phenotype in order to improve the assessment, diagnosis and treatment of this condition.

Growth in the concurrent use of antipsychotics with other psychotropic medications in Medicaid-enrolled children

OBJECTIVE

Second-generation antipsychotics (SGAs) have increasingly been prescribed to Medicaid-enrolled children; however, there is limited understanding of the frequency of concurrent SGA prescribing with other psychotropic medications. This study describes the epidemiology of concurrent SGA use with 4 psychotropic classes (stimulants, antidepressants, mood stabilizers, and α-agonists) among a national sample of Medicaid-enrolled children and adolescents 6 to 18 years old between 2004 and 2008.

METHOD

Repeated cross-sectional design was used, with national Medicaid Analytic eXtract data (10.6 million children annually). Logit and Poisson regression, standardized for year, demographics, and Medicaid eligibility group, estimated the probability and duration of concurrent SGA use with each medication class over time and examined concurrent SGAs in relation to clinical and demographic characteristics.

RESULTS

While SGA use overall increased by 22%, 85% of such use occurred concurrently. By 2008, the probability of concurrent SGA use ranged from 0.22 for stimulant users to 0.52 for mood stabilizer users. Concurrent SGA use occurred for long durations (69%-89% of annual medication days). Although the highest users of concurrent SGA were participants in foster care and disability Medicaid programs or those with behavioral hospitalizations, the most significant increases over time occurred among participants who were income-eligible for Medicaid (+13%), without comorbid ADHD (+15%), were not hospitalized (+13%), and did not have comorbid intellectual disability (+45%).

CONCLUSION

Concurrent SGA use with other psychotropic classes increased over time, and the duration of concurrent therapy was consistently long term. Concurrent SGA regimens will require further research to determine efficacy and potential drug-drug interactions, given a practice trend toward more complex regimens in less-impaired children/adolescents.

Improving metabolic and cardiovascular health at an early psychosis intervention program in vancouver, Canada

Psychotic disorders most commonly appear during the late teenage years and early adulthood. A focused and rapid clinical response by an integrated health team can help to improve the quality of life of the patient, leading to a better long-term prognosis. The Vancouver Coastal Health early psychosis intervention program covers a catchment area of approximately 800,000 people in the cities of Vancouver and Richmond, Canada. The program provides a multidisciplinary approach to supporting patients under the age of 30 who have recently experienced first-break psychosis. The program addresses the needs of the treatment environment, medication, and psychological therapies. A critical part of this support includes a program to specifically improve patients' physical health. Physical health needs are addressed through a two-pronged, parallel approach. Patients receive routine metabolic health assessments during their first year in the program, where standard metabolic parameters are recorded. Based on the results of clinical interviews and laboratory tests, specific actionable interventions are recommended. The second key strategy is a program that promotes healthy lifestyle goal development. Patients work closely with occupational therapists to develop goals to improve cardiometabolic health. These programs are supported by an active research environment, where patients are able to engage in studies with a focus on improving their physical health. These studies include a longitudinal evaluation of the effects of integrated health coaching on maintaining cardiometabolic health in patients recently admitted to the program, as well as a clinical study that evaluates the effects of low versus higher metabolic risk antipsychotic drugs on central adiposity. An additional pharmacogenomic study is helping to identify genetic variants that may predict cardiometabolic changes following treatment with antipsychotic drugs.