Barry D Lebowitz

University of Southern California, Los Angeles, CA, USA

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Publications (40)350.11 Total impact

  • Article: Cognitive effects of atypical antipsychotic medications in patients with Alzheimer's disease: outcomes from CATIE-AD.
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    ABSTRACT: The impact of the atypical antipsychotics olanzapine, quetiapine, and risperidone on cognition in patients with Alzheimer's disease is unclear. The authors assessed the effects of time and treatment on neuropsychological functioning during the Clinical Antipsychotic Trials of Intervention Effectiveness-Alzheimer's Disease study (CATIE-AD). CATIE-AD included 421 outpatients with Alzheimer's disease and psychosis or agitated/aggressive behavior who were randomly assigned to receive masked, flexible-dose olanzapine, quetiapine, risperidone, or placebo. Based on their clinicians' judgment, patients could discontinue the originally assigned medication and receive another randomly assigned medication. Patients were followed for 36 weeks, and cognitive assessments were obtained at baseline and at 12, 24, and 36 weeks. Outcomes were compared for 357 patients for whom data were available for at least one cognitive measure at baseline and one follow-up assessment that took place after they had been on their prescribed medication or placebo for at least 2 weeks. Overall, patients showed steady, significant declines over time in most cognitive areas, including in scores on the Mini-Mental State Examination (MMSE; -2.4 points over 36 weeks) and the cognitive subscale of the Alzheimer's Disease Assessment Scale (-4.4 points). Cognitive function declined more in patients receiving antipsychotics than in those given placebo on multiple cognitive measures, including the MMSE, the cognitive subscale of the Brief Psychiatric Rating Scale, and a cognitive summary score summarizing change on 18 cognitive tests. In CATIE-AD, atypical antipsychotics were associated with worsening cognitive function at a magnitude consistent with 1 year's deterioration compared with placebo. Further cognitive impairment is an additional risk of treatment with atypical antipsychotics that should be considered when treating patients with Alzheimer's disease.
    American Journal of Psychiatry 05/2011; 168(8):831-9. · 12.54 Impact Factor
  • Article: Mobile interventions for severe mental illness: design and preliminary data from three approaches.
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    ABSTRACT: Mobile devices can be used to deliver psychosocial interventions, yet there is little prior application in severe mental illness. We provide the rationale, design, and preliminary data from 3 ongoing clinical trials of mobile interventions developed for bipolar disorder or schizophrenia. Project 1 used a personal digital assistant to prompt engagement in personalized self-management behaviors based on real-time data. Project 2 employed experience sampling through text messages to facilitate case management. Project 3 was built on group functional skills training for schizophrenia by incorporating between-session mobile phone contacts with therapists. Preliminary findings were of minimal participant attrition, and no broken devices; yet, several operational and technical barriers needed to be addressed. Adherence was similar to that reported in nonpsychiatric populations, with high participant satisfaction. Therefore, mobile devices seem feasible and acceptable in augmenting psychosocial interventions for severe mental illness, with future research in establishing efficacy, cost effectiveness, and ethical and safety protocols.
    The Journal of nervous and mental disease 10/2010; 198(10):715-21. · 1.77 Impact Factor
  • Article: Programs for developing the pipeline of early-career geriatric mental health researchers: outcomes and implications for other fields.
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    ABSTRACT: This report summarizes the findings and recommendations of an expert consensus workgroup that addressed the endangered pipeline of geriatric mental health (GMH) researchers. The workgroup was convened at the Summit on Challenges in Recruitment, Retention, and Career Development in Geriatric Mental Health Research in late 2007. Major identified challenges included attracting and developing early-career investigators into the field of GMH research; a shortfall of geriatric clinical providers and researchers; a disproportionate lack of minority researchers; inadequate mentoring and career development resources; and the loss of promising researchers during the vulnerable period of transition from research training to independent research funding. The field of GMH research has been at the forefront of developing successful programs that address these issues while spanning the spectrum of research career development. These programs serve as a model for other fields and disciplines. Core elements of these multicomponent programs include summer internships to foster early interest in GMH research (Summer Training on Aging Research Topics-Mental Health Program), research sponsorships aimed at recruitment into the field of geriatric psychiatry (Stepping Stones), research training institutes for early career development (Summer Research Institute in Geriatric Psychiatry), mentored intensive programs on developing and obtaining a first research grant (Advanced Research Institute in Geriatric Psychiatry), targeted development of minority researchers (Institute for Research Minority Training on Mental Health and Aging), and a Web-based clearinghouse of mentoring seminars and resources (MedEdMentoring.org). This report discusses implications of and principles for disseminating these programs, including examples of replications in fields besides GMH research.
    Academic medicine: journal of the Association of American Medical Colleges 01/2010; 85(1):26-35. · 2.34 Impact Factor
  • Article: Performance-based and subjective measures of functioning in middle-aged and older adults with bipolar disorder.
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    ABSTRACT: Performance-based measures may be useful in quantifying functional impairment associated with bipolar disorder, particularly among older adults. Among 30 outpatients with bipolar disorder and 31 normal comparison subjects (NCs), we administered the UCSD Performance-Based Skills Assessment (UPSA) and 2 subjective measures of functioning. The UPSA simulates real-world everyday tasks, such as financial management. We compared UPSA scores between groups and, within the bipolar group, examined associations between UPSA scores and subjective functioning, cognitive functioning, and depressive, and manic symptoms. By large effect sizes, the bipolar disorder group had lower scores on the UPSA and its subscales compared with NCs. Within the bipolar group, UPSA scores correlated strongly with Quality of Well-Being Scale but not SF-36 scores, and the UPSA was not related to depressive or manic symptoms, but was associated with cognitive functioning. Given its relative independence from symptoms, the UPSA may be useful in gauging the effectiveness of rehabilitation for bipolar disorder.
    The Journal of nervous and mental disease 08/2009; 197(7):471-5. · 1.77 Impact Factor
  • Article: Metabolic changes associated with second-generation antipsychotic use in Alzheimer's disease patients: the CATIE-AD study.
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    ABSTRACT: The second-generation antipsychotics are associated with metabolic abnormalities in patients with schizophrenia. Elderly patients with Alzheimer's disease are frequently treated with these antipsychotics, but limited data are available on their metabolic effects. The authors assessed 186 male and 235 female Alzheimer's disease outpatients from the Clinical Antipsychotic Trials of Intervention Effectiveness-Alzheimer's Disease (CATIE-AD) for changes in weight, waist circumference, blood pressure, fasting glucose, and lipids in relation to duration of second-generation antipsychotic use (i.e., olanzapine, quetiapine, and risperidone) throughout the 36-week trial, using logistic regression and mixed-effects models. Women showed significant weight gain (0.14 lb/week of use) while change was nonsignificant in men. Clinically significant weight gain (i.e., > or = 7% of body weight) was seen among patients with antipsychotic use < or = 12 weeks (odds ratio [OR]=1.56, 95% CI=0.53 to 4.58), between 12 and 24 weeks (OR=2.89, 95% CI=0.97 to 8.64), and > 24 weeks (OR=3.38, 95% CI=1.24 to 9.23) relative to patients who did not use antipsychotics during the trial. Olanzapine and quetiapine treatments were significantly associated with weight gain (0.12 and 0.14 lb/week, respectively). In addition, olanzapine was significantly associated with decreases in HDL cholesterol (-0.19 mg/dl/week) and increased girth (0.07 inches/week) relative to the placebo group. No treatment effects were noted for changes in blood pressure, glucose, and triglycerides. Second-generation antipsychotic use was associated with weight gain in women, with olanzapine and quetiapine in particular, and with unfavorable change in HDL cholesterol and girth with olanzapine. The potential consequences of these effects suggest that patients with Alzheimer's disease treated with second-generation antipsychotics should be monitored closely.
    American Journal of Psychiatry 04/2009; 166(5):583-90. · 12.54 Impact Factor
  • Article: Short-term course of neuropsychological abilities in middle-aged and older adults with bipolar disorder.
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    ABSTRACT: There are few longitudinal studies of neurocognition in bipolar disorder, and the short-term course of cognitive deficits in later-life bipolar disorder is unknown. We administered a battery of neurocognitive tests, repeated 1-3 years after baseline, to 35 community-dwelling outpatients with bipolar disorder (mean age = 58), and compared their performance on a composite measure of cognitive functioning to that of demographically matched samples of normal comparison subjects (NCs; n = 35) and patients with schizophrenia (n = 35). Using regression analyses, we examined group differences in baseline performance, trajectory of change over time, and variability in performance across time. Within the bipolar group, we examined the impact of baseline severity and change in severity of psychiatric symptoms on intra-individual change in neurocognitive performance. At baseline, the group with bipolar disorder differed in overall neurocognitive functioning from the NCs, but did not differ significantly from the schizophrenia group. The bipolar group did not differ from the NCs or schizophrenia group in the mean trajectory of change between time-points, but the bipolar patients showed more intra-individual variability over time than the NCs or schizophrenia group. In the bipolar group, change in neurocognitive function was not related to baseline or change in psychiatric symptom severity. Middle-aged and older community-dwelling adults with bipolar disorder have greater short-term variability in level of neurocognitive functioning relative to NCs or people with schizophrenia. The developmental course of and risk factors for cognitive deficits in bipolar disorder should be examined in future longitudinal studies.
    Bipolar Disorders 10/2008; 10(6):684-90. · 5.29 Impact Factor
  • Article: Chronic pain and depression among geriatric psychiatry inpatients.
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    ABSTRACT: We examined whether chronic pain among depressed geriatric inpatients was associated with several clinical variables-comorbid psychiatric and medical diagnoses, length of hospitalization, suicidal ideation, and sleep duration. Medical charts of inpatients admitted to a geriatric psychiatry unit over 2 years were examined retrospectively; 148 patients with a depressive disorder were identified. Admission pain assessments were used to classify whether patients had chronic pain. Other variables of interest were collected from charts. 62% of patients reported chronic pain. In multivariate regression analysis, depressed older adults with chronic pain were more likely to report suicidal ideation, be diagnosed with personality disorder, have higher medical burden, and experience decreased total sleep time compared to depressed older adults without chronic pain. Chronic pain--common in depressed older adults--may influence clinical features of depression and should be assessed as a possible suicide risk factor. Prospective studies should examine causal relationships and determine the effects of adequate pain treatment on depression course and suicide risk in older adults.
    International Journal of Geriatric Psychiatry 07/2008; 23(6):637-42. · 2.42 Impact Factor
  • Article: Clinical symptom responses to atypical antipsychotic medications in Alzheimer's disease: phase 1 outcomes from the CATIE-AD effectiveness trial.
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    ABSTRACT: The study measured the effects of atypical antipsychotics on psychiatric and behavioral symptoms in patients with Alzheimer's disease and psychosis or agitated behavior. The Clinical Antipsychotic Trials of Intervention Effectiveness-Alzheimer's Disease (CATIE-AD) Alzheimer's disease effectiveness study included 421 outpatients with Alzheimer's disease and psychosis or agitated/aggressive behavior. Patients were assigned randomly to masked, flexible-dose treatment with olanzapine, quetiapine, risperidone, or placebo for up to 36 weeks. Patients could be randomly reassigned to a different medication at the clinician's discretion, which ended phase 1. Psychiatric and behavioral symptoms, functioning, cognition, care needs, and quality of life were measured at regular intervals. In relation to placebo, the last observation in phase 1 showed greater improvement with olanzapine or risperidone on the Neuropsychiatric Inventory total score, risperidone on the Clinical Global Impression of Changes, olanzapine and risperidone on the Brief Psychiatric Rating Scale (BPRS) hostile suspiciousness factor, and risperidone on the BPRS psychosis factor. There was worsening with olanzapine on the BPRS withdrawn depression factor. Among patients continuing phase 1 treatment at 12 weeks, there were no significant differences between antipsychotics and placebo on cognition, functioning, care needs, or quality of life, except for worsened functioning with olanzapine compared to placebo. In this descriptive analysis of outpatients with Alzheimer's disease in usual care settings, some clinical symptoms improved with atypical antipsychotics. Antipsychotics may be more effective for particular symptoms, such as anger, aggression, and paranoid ideas. They do not appear to improve functioning, care needs, or quality of life.
    American Journal of Psychiatry 07/2008; 165(7):844-54. · 12.54 Impact Factor
  • Article: Elderly patients with dementia-related symptoms of severe agitation and aggression: consensus statement on treatment options, clinical trials methodology, and policy.
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    ABSTRACT: Atypical antipsychotic drugs have been used off label in clinical practice for treatment of serious dementia-associated agitation and aggression. Following reports of cerebrovascular adverse events associated with the use of atypical antipsychotics in elderly patients with dementia, the U.S. Food and Drug Administration (FDA) issued black box warnings for several atypical antipsychotics titled "Cerebrovascular Adverse Events, Including Stroke, in Elderly Patients With Dementia." Subsequently, the FDA initiated a metaanalysis of safety data from 17 registration trials across 6 antipsychotic drugs (5 atypical antipsychotics and haloperidol). In 2005, the FDA issued a black box warning regarding increased risk of mortality associated with the use of atypical antipsychotic drugs in this patient population. Geriatric mental health experts participating in a 2006 consensus conference (Bethesda, Md., June 28-29) reviewed evidence on the safety and efficacy of antipsychotics, as well as nonpharmacologic approaches, in treating dementia-related symptoms of agitation and aggression. EVIDENCE/CONSENSUS PROCESS: The participants concluded that, while problems in clinical trial designs may have been one of the contributors to the failure to find a signal of drug efficacy, the findings related to drug safety should be taken seriously by clinicians in assessing the potential risks and benefits of treatment in a frail population, and in advising families about treatment. Information provided to patients and family members should be documented in the patient's chart. Drugs should be used only when nonpharmacologic approaches have failed to adequately control behavioral disruption. Participants also agreed that there is a need for an FDA-approved medication for the treatment of severe, persistent, or recurrent dementia-related symptoms of agitation and aggression (even in the absence of psychosis) that are unresponsive to nonpharmacologic intervention. This article outlines methodological enhancements to better evaluate treatment approaches in future registration trials and provides an algorithm for improving the treatment of these patients in nursing home and non-nursing home settings.
    The Journal of Clinical Psychiatry 06/2008; 69(6):889-98. · 5.80 Impact Factor
  • Article: Assessment of medication management ability in middle-aged and older adults with bipolar disorder.
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    ABSTRACT: Medication nonadherence is a key clinical concern in bipolar disorder (BD) across the life span. Cognitive deficits in older adults with BD may hinder medication management ability, which, in turn, may lead to nonadherence. Using an innovative performance-based measure of medication management ability, the Medication Management Ability Assessment (MMAA), we compared performance of 29 middle-aged older community-dwelling outpatients with BD who were clinically stable (mean age, 61 years; SD, 11 years; range, 45-86 years) with those of 59 normal control subjects (NCs) and 219 outpatients with schizophrenia. The MMAA is a role-play task that simulates a medication regimen likely to be encountered by older adults. Within the BD group, we examined the relationships of MMAA scores to demographic, psychiatric symptoms severity, and the Mattis Dementia Rating Scale (DRS) scores. The BD group made 2.8 times the errors on the MMAA than NCs (BD group, 6.2; SD, 5.5 vs NCs, 2.2; SD, 2.5) and did not significantly differ from the Schizophrenia group in errors on the MMAA. Errors in the BD group were more likely to be taking in too few medications as taking in too many. Within the BD group, a significant correlation was seen between MMAA scores and the DRS Total score, but not with age, education, Brief Psychiatric Rating Scale, Hamilton Depression Rating Scale, number of psychiatric medications, or medical conditions. Among DRS subscales, the Memory Subscale correlated most strongly with MMAA errors. This small cross-sectional study suggests that deficits in medication management ability may be present in later-life BD. Neurocognitive deficits may be important in understanding problems with unintentional nonadherence.
    Journal of Clinical Psychopharmacology 05/2008; 28(2):225-9. · 4.10 Impact Factor
  • Article: Public-academic partnerships: improving care for older persons with schizophrenia through an academic-community partnership.
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    ABSTRACT: Translating evidence-based mental health interventions designed in research settings into community practice is a priority for multiple stakeholders. Partnerships between academic and public institutions can facilitate this translation. To improve care for middle-aged and older adults with schizophrenia, the authors developed a collaboration between a university research center and a public mental health service system using principles from community-based participatory research and cultural exchange theory. They describe the process that has led to a number of mutually beneficial products. Despite the challenges involved, building and maintaining academic-public collaborations will be essential for improving mental health care for persons with schizophrenia.
    Psychiatric Services 04/2008; 59(3):236-9. · 2.38 Impact Factor
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    Article: Psychosocial interventions and medication adherence in bipolar disorder.
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    ABSTRACT: Recent research has indicated that psychosocial interventions can have a valuable role in reducing the substantial psychosocial disability associated with bipolar disorder. Randomized controlled trials of these interventions indicate that improvements are seen in symptoms, psychosocial functioning, and treatment adherence. These interventions, systematically presented in the form of standardized treatment manuals, vary in format, duration, and theoretical basis. All are meant to augment pharmacotherapy, which represents the standard of treatment in the field. Modalities that have gathered the most empirical support include cognitive-behavioral therapy, family-focused therapy, interpersonal and social rhythms therapy, and psychoeducation. The enhancement of adherence to pharmacotherapy is a common therapeutic target, due to the association of nonadherence with higher relapse rates, hospitalization, and health care costs among people with bipolar disorder. Given the complexity of nonadherence behavior, multicomponent interventions are often required. In this review, we provide an overview of the rationale, evidence base, and major psychotherapeutic approaches in bipolar disorder, focusing on the assessment and enhancement of medication adherence.
    Dialogues in clinical neuroscience 02/2008; 10(2):239-50.
  • Article: Cost-benefit analysis of second-generation antipsychotics and placebo in a randomized trial of the treatment of psychosis and aggression in Alzheimer disease.
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    ABSTRACT: Second-generation antipsychotics (SGAs) are prescribed for psychosis, aggression, and agitation in Alzheimer disease (AD). To conduct a cost-benefit analysis of SGAs and placebo (taken to represent a "watchful waiting" treatment strategy) for psychosis and aggression in outpatients with AD. Randomized placebo-controlled trial of alternative SGA initiation strategies. Forty-two outpatient clinics. Outpatients with AD and psychosis, aggression, or agitation (N = 421). Intervention Participants were randomly assigned to treatment with olanzapine, quetiapine fumarate, risperidone, or placebo with the option of double-blind rerandomization to another antipsychotic or citalopram hydrobromide or open treatment over 9 months. Monthly interviews documented health service use and costs. The economic perspective addressed total health care and medication costs. Costs of study drugs were estimated from wholesale prices with adjustment for discounts and rebates. Quality-adjusted life-years (QALYs) were assessed with the Health Utilities Index Mark 3 and were supplemented with measures of functioning, activities of daily living, and quality of life. Primary analyses were conducted using all available data. Secondary analyses excluded observations after the first medication change (ie, phase 1 only). Cost-benefit analysis was conducted using the net health benefits approach in a sensitivity analysis in which QALYs were valued at $50,000 per year and $100,000 per year. Average total health costs, including medications, were significantly lower for placebo than for SGAs, by $50 to $100 per month. There were no differences between treatments in QALYs or other measures of function. Phase 1-only analyses were broadly similar. Net-benefit analysis showed greater net health benefits for placebo as compared with other treatments, with probabilities ranging from 50% to 90%. There were no differences in measures of effectiveness between initiation of active treatments or placebo (which represented watchful waiting) but the placebo group had significantly lower health care costs. clinicaltrials.gov Identifier: NCT00015548.
    Archives of general psychiatry 12/2007; 64(11):1259-68. · 12.26 Impact Factor
  • Article: Clinical trials: bridging the gap between efficacy and effectiveness.
    Colin Depp, Barry D Lebowitz
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    ABSTRACT: The need for clinical psychiatry research to provide practical information to clinicians, families, and consumers has led to the development of new approaches to clinical trials. Efficacy trials, the historical backbone of clinical research, have many shortcomings in delivering practical information to stakeholders. The 'effectiveness' or 'public-health' model of intervention research targets a diverse group of patients across multiple settings that are outside of academic medical centres, with study design and outcomes that are selected on the basis of their potential to produce clinically meaningful information. The National Institute of Mental Health has funded three such clinical trials in recent years, respectively targeting schizophrenia and Alzheimer's disease, depression, and bipolar disorder. Each of these studies has made a major impact, and provided new insights into the challenges of public health orientated trials in psychiatry. In this review, we describe the underlying principles and practical considerations in efficacy and effectiveness-orientated trials.
    International Review of Psychiatry 11/2007; 19(5):531-9. · 1.80 Impact Factor
  • Article: Medication adherence skills training for middle-aged and elderly adults with bipolar disorder: development and pilot study.
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    ABSTRACT: To present the rationale, development, and pilot study of a medication adherence skills training (MAST-BD) intervention for older adults with bipolar disorder (BPD). We developed a 12-week manualized group intervention that combined educational, motivational, medication management skills and symptom management training adapted for older adults. Among 21 older outpatients with BPD (mean age = 60 years; SD = 6), the feasibility and acceptability of MAST-BD were assessed in a quasi-experimental clinical trial. We also obtained preliminary effect sizes associated with pre-post change on measures of self-reported adherence to psychiatric medications, performance-based medication management ability, attitudes toward medication, depressive and manic symptoms, and health-related quality of life. At baseline, 55% of participants reported recent non-adherence to psychiatric medications and were, on average, suffering from moderately severe depressive symptoms and minimal symptoms of mania. A total of 76% of participants completed the intervention, and 86% of sessions were attended by completers. Participants reported high levels of satisfaction with the intervention and manual. Pre-post improvement by small to medium effect sizes (Cohen's d = 0.30-0.57) was seen in medication adherence, medication management ability, depressive symptoms, and selected indices of health-related quality of life. Notwithstanding the limitations of this small preliminary study, the results are encouraging in that the MAST-BD intervention was feasible, acceptable to patients, and associated with improvement in key outcomes. Suggestions for further development of medication adherence interventions for this neglected group of patients are discussed.
    Bipolar Disorders 10/2007; 9(6):636-45. · 5.29 Impact Factor
  • Article: Neurocognitive impairment in middle-aged and older adults with bipolar disorder: comparison to schizophrenia and normal comparison subjects.
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    ABSTRACT: The frequency, pattern, and correlates of neurocognitive impairment in older patients with bipolar disorder have received little study. We examined neurocognitive abilities in middle-aged and older adults with bipolar disorder to groups with schizophrenia or normal subjects, as well as the relation of neurocognition to clinical characteristics. We administered a battery of neurocognitive and clinical measures to older (45-85 years) outpatients with bipolar disorder (n=67), schizophrenia (n=150), and normal comparison subjects (n=85). Within the bipolar group, we assessed the association between neurocognitive performance and psychiatric symptoms, quality of life, and medication status. The group with bipolar disorder differed on nearly all neuropsychological tests compared to normal subjects, with medium effect sizes. Bipolar patients as impaired as those with schizophrenia on half of the tests administered, and performed better on the remaining tests, with small effect sizes. Neurocognitive deficits in bipolar disorder group related to lower quality of life, but not to psychiatric symptom severity or duration of illness. Samples were outpatients with mild-moderate symptoms, and findings may not generalize to acutely ill populations. We lacked data on illness history to examine the cumulative impact of psychopathology. Among clinically stable middle-aged and older outpatients, bipolar disorder was associated with substantial neurocognitive impairment, with a pattern that was somewhat distinct from that found in schizophrenia. Deficits in the bipolar group were not related to severity or duration of psychiatric symptoms, but were related to quality of life. Bipolar disorder often involve disabling and enduring cognitive impairments in older outpatients.
    Journal of Affective Disorders 09/2007; 101(1-3):201-9. · 3.52 Impact Factor
  • Article: Enhancing medication adherence: in older adults with bipolar disorder.
    Colin A Depp, Barry D Lebowitz
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    ABSTRACT: Objective: The number of older adults with bipolar disorder is increasing, yet little is known about the optimal clinical management of these patients. Medication adherence is a vital to effective long-term treatment of these patients; thus enhancement of adherence is often an important clinical goal.Design: We reviewed available evidence about the characteristics of later-life bipolar disorder along with behavioral and organizational strategies to enhance adherence in this population.Results: Based on available data, cognitive impairment, medical comorbidity, and functional limitations are frequent and are likely to impact treatment adherence in this population. In terms of treatment, there have been no placebo-controlled randomized clinical trials of medications or psychosocial interventions for this population. Based on extrapolation from intervention research on younger adults with bipolar disorder and older adults with other chronic illness, psychosocial interventions that reduce effortful cognitive processing in managing medications and reduce organizational barriers to adherence may be beneficial in enhancing adherence in this population.Conclusions: Much more research needs to be done to understand the impact of aging on bipolar disorder, along with optimization of treatment. Interventions to enhance adherence in this population need to be adapted to fit with the unique needs of older adults with bipolar disorder.
    Psychiatry 06/2007; 4(6):22-32.
  • Article: Self-administered cognitive screening for a study of successful aging among community-dwelling seniors: a preliminary study.
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    ABSTRACT: Cognitive functioning is a central component of successful aging. Yet, there are few published instruments for brief and reliable self-administered cognitive assessment that could be used in large population-based studies of community-dwelling elderly people. We examined the utility of a self-administered cognitive screening instrument in a group of community-dwelling older adults, and we evaluated correlations of the performance on this measure with demographic variables and specific indicators of self-rated successful aging. We assessed 182 well-educated adults ages 58 to 99 with a modified version of a previously published cognitive screening instrument (Cognitive Assessment Screening Test--Revised; CAST-R), a measure of cognitive complaints (Cognitive Failures Questionnaire; CFQ), and a self-rating of successful aging. We used the SF-36 Physical and Mental Composite Scores as measures of physical and mental health-related functioning. As expected, most individuals performed well on the CAST-R; only 7% of participants fell below a previously established cut score for cognitive impairment. CAST-R scores were positively correlated with level of education, income, SF-36 Mental Composite Scores, and a self-rating of successful aging, and negatively correlated with chronological age. Scores on the CAST-R were not correlated with cognitive complaints (CFQ total score) or SF-36 Physical Composite Scores. A self-administered cognitive screening tool may be a useful, albeit limited, way of screening for cognitive disabilities among well-educated, community-dwelling older adults. Although preliminary, significant associations with several successful aging-related variables in expected directions represent the first step in establishing the validity of the CAST-R.
    International Journal of Geriatric Psychiatry 05/2007; 22(4):327-31. · 2.42 Impact Factor
  • Article: Acute and longer-term outcomes in depressed outpatients requiring one or several treatment steps: a STAR*D report.
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    ABSTRACT: This report describes the participants and compares the acute and longer-term treatment outcomes associated with each of four successive steps in the Sequenced Treatment Alternatives to Relieve Depression (STAR*D) trial. A broadly representative adult outpatient sample with nonpsychotic major depressive disorder received one (N=3,671) to four (N=123) successive acute treatment steps. Those not achieving remission with or unable to tolerate a treatment step were encouraged to move to the next step. Those with an acceptable benefit, preferably symptom remission, from any particular step could enter a 12-month naturalistic follow-up phase. A score of <or=5 on the Quick Inventory of Depressive Symptomatology-Self-Report (QIDS-SR(16)) (equivalent to <or=7 on the 17-item Hamilton Rating Scale for Depression [HRSD(17)]) defined remission; a QIDS-SR(16) total score of >or=11 (HRSD(17)>or=14) defined relapse. The QIDS-SR(16) remission rates were 36.8%, 30.6%, 13.7%, and 13.0% for the first, second, third, and fourth acute treatment steps, respectively. The overall cumulative remission rate was 67%. Overall, those who required more treatment steps had higher relapse rates during the naturalistic follow-up phase. In addition, lower relapse rates were found among participants who were in remission at follow-up entry than for those who were not after the first three treatment steps. When more treatment steps are required, lower acute remission rates (especially in the third and fourth treatment steps) and higher relapse rates during the follow-up phase are to be expected. Studies to identify the best multistep treatment sequences for individual patients and the development of more broadly effective treatments are needed.
    American Journal of Psychiatry 11/2006; 163(11):1905-17. · 12.54 Impact Factor
  • Article: Effectiveness of atypical antipsychotic drugs in patients with Alzheimer's disease.
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    ABSTRACT: Second-generation (atypical) antipsychotic drugs are widely used to treat psychosis, aggression, and agitation in patients with Alzheimer's disease, but their benefits are uncertain and concerns about safety have emerged. We assessed the effectiveness of atypical antipsychotic drugs in outpatients with Alzheimer's disease. In this 42-site, double-blind, placebo-controlled trial, 421 outpatients with Alzheimer's disease and psychosis, aggression, or agitation were randomly assigned to receive olanzapine (mean dose, 5.5 mg per day), quetiapine (mean dose, 56.5 mg per day), risperidone (mean dose, 1.0 mg per day), or placebo. Doses were adjusted as needed, and patients were followed for up to 36 weeks. The main outcomes were the time from initial treatment to the discontinuation of treatment for any reason and the number of patients with at least minimal improvement on the Clinical Global Impression of Change (CGIC) scale at 12 weeks. There were no significant differences among treatments with regard to the time to the discontinuation of treatment for any reason: olanzapine (median, 8.1 weeks), quetiapine (median, 5.3 weeks), risperidone (median, 7.4 weeks), and placebo (median, 8.0 weeks) (P=0.52). The median time to the discontinuation of treatment due to a lack of efficacy favored olanzapine (22.1 weeks) and risperidone (26.7 weeks) as compared with quetiapine (9.1 weeks) and placebo (9.0 weeks) (P=0.002). The time to the discontinuation of treatment due to adverse events or intolerability favored placebo. Overall, 24% of patients who received olanzapine, 16% of patients who received quetiapine, 18% of patients who received risperidone, and 5% of patients who received placebo discontinued their assigned treatment owing to intolerability (P=0.009). No significant differences were noted among the groups with regard to improvement on the CGIC scale. Improvement was observed in 32% of patients assigned to olanzapine, 26% of patients assigned to quetiapine, 29% of patients assigned to risperidone, and 21% of patients assigned to placebo (P=0.22). Adverse effects offset advantages in the efficacy of atypical antipsychotic drugs for the treatment of psychosis, aggression, or agitation in patients with Alzheimer's disease. (ClinicalTrials.gov number, NCT00015548 [ClinicalTrials.gov].).
    New England Journal of Medicine 11/2006; 355(15):1525-38. · 53.30 Impact Factor

Institutions

  • 2009–2011
    • University of Southern California
      • • Department of Preventive Medicine
      • • Department of Psychiatry and Behavioral Sciences
      Los Angeles, CA, USA
    • CSU Mentor
      Long Beach, CA, USA
  • 2006–2010
    • University of California, San Diego
      • Department of Psychiatry
      San Diego, CA, USA
  • 2008
    • University of California, Los Angeles
      • Department of Psychiatry and Biobehavioural Sciences
      Los Angeles, CA, USA
  • 2007
    • Yale University
      New Haven, CT, USA
  • 2005
    • Weill Cornell Medical College
      New York City, NY, USA
    • VA San Diego Healthcare System
      San Diego, CA, USA
  • 2002–2004
    • National Institute of Mental Health (NIMH)
      • Adult Treatment and Preventive Intervention Research Branch
      Bethesda, MD, USA