Publications by authors named "Matthew Byerly"

Introduction: Reviews of commercial and publicly available smartphone (mobile) health applications (mHealth app reviews) are being undertaken and published. However, there is variation in the conduct and reporting of mHealth app reviews, with no existing reporting guidelines. Building on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, we aim to develop the Consensus for APP Review Reporting Items (CAPPRRI) guidance, to support the conduct and reporting of mHealth app reviews.

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Pediatric Quality of Life Enjoyment and Satisfaction Questionnaire is a brief 15-item self-report measure of quality of life and life satisfaction originally developed for clinical populations (6 to 17 years old). The current paper examines the initial factor structure proposed by the developers and underlying psychometric properties of the measure in a non-clinical population of teens. A cross-sectional adolescent sample (N = 3222) completed self-report measures as part of mental health promotion program.

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Objective: To determine if a single baseline adherence assessment (Brief Adherence Rating Scale [BARS]) could identify patients who are likely to respond to long-acting injectable (LAI) antipsychotic treatment.

Method: The current secondary analysis included a sub-sample of adult outpatients (N = 176) with schizophrenia or schizoaffective disorder who participated in the "A Comparison of Long-Acting Injectable Medications for Schizophrenia (ACLAIMS)" trial and had a baseline BARS assessment and a baseline and month 3 Positive and Negative Syndrome Scale (PANSS) rating. The main outcome was LAI treatment response, defined as a ≥ 20% decrease (baseline to month 3) on the PANSS total score.

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Background: Although internet-based cognitive behavior therapy (iCBT) interventions can reduce depression symptoms, large differences in their effectiveness exist.

Objective: The aim of this study was to evaluate the effectiveness of an iCBT intervention called Thrive, which was designed to enhance engagement when delivered as a fully automated, stand-alone intervention to a rural community population of adults with depression symptoms.

Methods: Using no diagnostic or treatment exclusions, 343 adults with depression symptoms were recruited from communities using an open-access website and randomized 1:1 to the Thrive intervention group or the control group.

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Background: The continuum of pro- and anti-inflammatory response elicited by traumatic brain injury (TBI) is suggested to play a key role in the outcome of TBI; however, the underlying mechanisms remain ill -defined.

Methods: Here, we demonstrate that using bone marrow chimeric mice and systemic inhibition of EphA4 receptor shifts the pro-inflammatory milieu to pro-resolving following acute TBI.

Results: EphA4 expression is increased in the injured cortex as early as 2 h post-TBI and on CX3CR1-positive cells in the peri-lesion.

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Objective: The aim of this study was to provide recommendations on initiating and maintaining long-acting injectable antipsychotics (LAIs) in individuals with schizophrenia/schizoaffective or bipolar disorder.

Methods: A 50-question survey comprising 916 response options was completed by 34 expert researchers and high prescribers with extensive LAI experience, rating relative appropriateness/importance on a 9-point scale. Consensus was determined using chi-square test of score distributions.

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Objective: To assess expert consensus on barriers and facilitators for long-acting injectable antipsychotic (LAI) use and provide clinical recommendations on issues where clinical evidence is lacking, including identifying appropriate clinical situations for LAI use.

Methods: A 50-question survey comprising 916 response options was distributed to 42 research experts and high prescribers with extensive LAI experience. Respondents rated options on relative appropriateness/importance using a 9-point scale.

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Background: Studies in the KO mouse demonstrate hyper-excitability and increased high-frequency neuronal activity in sensory cortex. These abnormalities may contribute to prominent and distressing sensory hypersensitivities in patients with fragile X syndrome (FXS). The current study investigated functional properties of auditory cortex using a sensory entrainment task in FXS.

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Background: Cortical hyperexcitability due to abnormal fast-spiking inhibitory interneuron function has been documented in KO mice, a mouse model of the fragile X syndrome which is the most common single gene cause of autism and intellectual disability.

Methods: We collected resting state dense-array electroencephalography data from 21 fragile X syndrome (FXS) patients and 21 age-matched healthy participants.

Results: FXS patients exhibited greater gamma frequency band power, which was correlated with social and sensory processing difficulties.

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Objective: This study assessed the relative cost-effectiveness of haloperidol decanoate (HD), a first-generation long-acting injectable (LAI) antipsychotic, and paliperidone palmitate (PP), a second-generation LAI antipsychotic.

Methods: A double-blind, randomized 18-month clinical trial conducted at 22 clinical research sites in the United States compared the cost-effectiveness of HD and PP among 311 adults with schizophrenia or schizoaffective disorder who had been clinically assessed as likely to benefit from an LAI antipsychotic. Patients were randomly assigned to monthly intramuscular injections of HD (25-200 mg) or PP (39-234 mg) for up to 24 months.

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Objective: The aim of this study was to construct a composite scoring system to predict the probability of placebo response in adolescents with Major Depressive Disorder (MDD).

Method: Participants of the current study were 151 adolescents (aged 12-17 years) who were randomized to the placebo arm (placebo transdermal patches) of a randomized controlled trial (RCT) comparing the selegiline transdermal patch with placebo (DelBello et al., 2014).

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Anhedonia or inability to experience pleasure not only is a core symptom of major depressive disorder (MDD), but also is identified as an important component of the positive valence system in the NIMH Research Domain Criteria. The Snaith-Hamilton Pleasure Scale (SHAPS) has been developed for the assessment of hedonic experience or positive valence, but has not been well-studied in depressed outpatient populations. The current study examined the reliability and validity of the SHAPS using a sample of adult outpatients with treatment resistant MDD.

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Importance: Long-acting injectable antipsychotics are used to reduce medication nonadherence and relapse in schizophrenia-spectrum disorders. The relative effectiveness of long-acting injectable versions of second-generation and older antipsychotics has not been assessed.

Objective: To compare the effectiveness of the second-generation long-acting injectable antipsychotic paliperidone palmitate with the older long-acting injectable antipsychotic haloperidol decanoate.

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Objective: To determine the characteristics of curricula for teaching the content of clinical practice guidelines (CPGs) in psychiatric residency and child and adolescent fellowship programs as well as to determine if and how the learning of CPG content is applied in clinical care settings.

Methods: We conducted a national online survey of directors of general psychiatry residency and child and adolescent fellowship programs in the USA. The survey questionnaire included 13 brief questions about the characteristics used to teach CPGs in the programs, as well as two demographic questions about each program and director.

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Adherence to antipsychotic medication was assessed monthly over a 6-month study period using patient-specific electronic monitoring (EM) of medication bottle opening in 23 outpatients with schizophrenia or schizoaffective disorder. Patient-specific EM adherence results were then shared with the seven participating prescribers, who were surveyed concerning the treatment changes, if any, that they would recommend based on the EM adherence results. Prescribers indicated that they would recommend adherence-related treatment plan changes in 61% of patients, all of whom were ≤80% adherent.

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Purpose: This study examined the clinical significance of switching from olanzapine, quetiapine, or risperidone to aripiprazole by examining changes in predicted risk of cardiovascular disease (CVD) according to the Framingham Risk Score (FRS) and metabolic syndrome status. FRS estimates 10-year risk of "hard" coronary heart disease (CHD) outcomes (myocardial infarction and coronary death) while metabolic syndrome is associated with increased risk of CVD, stroke, and diabetes mellitus.

Method: Changes in FRS and metabolic syndrome status were compared between patients with BMI ≥ 27 and non-HDL-C ≥ 130 mg/dL randomly assigned to stay on stable current treatment (olanzapine, quetiapine, or risperidone) or switch to treatment with aripiprazole with 24 weeks of follow-up.

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The objective of this research was to examine the association between sexual dysfunction and subjective quality of life in outpatients with schizophrenia and schizoaffective disorder. The authors evaluated a sample of 238 adult outpatients with diagnoses of schizophrenia or schizoaffective disorder who took quetiapine, olanzapine, or risperidone at study entry with a 1-time rating of the Arizona Sexual Experience Scale and the general life satisfaction scale item of the quality of life index. The authors used multiple linear robust regression and Spearman partial correlation coefficient to examine the relation between subjective quality of life (measured by the general life satisfaction scale item) and sexual functioning (measured by the Arizona sexual experience scale).

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Objective: In this study, we examined antidepressant (fluoxetine) medication adherence in children and adolescents with major depressive disorder (MDD). Using electronic monitoring (EM) as the "reference standard," we compared various methods of measuring antidepressant medication adherence (including EM, pill counts, and medication diaries) among children and adolescents with MDD and examined the relationship between EM medication adherence and depression severity across time. We then suggested recommendations for clinical researchers and practicing clinicians regarding medication adherence assessment.

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Hyperprolactinemia, an adverse effect associated with the use of typical antipsychotics and the atypical antipsychotic risperidone, has both acute and chronic clinical consequences. One option for clinical management is switching to an agent with a lower liability for inducing hyperprolactinemia. This post-hoc sub-analysis of an 8-week, open-label study in outpatients with schizophrenia (CN138-215) examined short-term effects on prolactin levels during a switch from risperidone or olanzapine to aripiprazole 30 mg/day.

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This study evaluated the effect of switching to quetiapine vs. risperidone continuation on sexual functioning in outpatients with risperidone-associated sexual dysfunction. Outpatients (n=42, age>or=18 years) with schizophrenia or schizoaffective disorder who experienced risperidone-associated sexual dysfunction were randomized to 6 weeks of double-blind risperidone continuation (mean dose=4.

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Among outpatients with schizophrenia, antipsychotic non-adherence is common, grossly under-detected by patients and their prescribers, and is associated with poor clinical outcomes. Using electronic monitoring (EM) as the reference standard we evaluated the reliability and validity as well as the sensitivity and specificity of a recently developed, brief, pencil-paper, clinician-administered adherence instrument [the Brief Adherence Rating Scale (BARS)] to assess the oral antipsychotic medication adherence of outpatients with schizophrenia and schizoaffective disorder. EM and BARS adherence and symptom severity ratings were gathered at baseline and prospectively at 6 monthly visits in 61 participants (n=35 with schizophrenia; n=26 with schizoaffective disorder).

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