Effects of methylphenidate in HIV-related depression: a comparative trial with desipramine

Comparative efficacy and safety of stimulant-type medications for depression: A systematic review and network meta-analysis

BACKGROUND

Globally, depression impacts nearly 300 million people, and roughly half do not achieve remission with standard first-line therapies. For such individuals, augmentation strategies are often helpful at reducing the severity of depression. While there are many potential adjunctive medication choices, psychostimulants are among the more controversial options.

OBJECTIVES

The present review sought to clarify the comparative efficacy and safety of different stimulant-like medications to treat depression.

METHODS

We conducted a systematic review and network meta-analysis of randomized, controlled trials (RCTs) using psychostimulant medications to treat adults with depression. Outcomes were pooled using rate ratios (RRs) for dichotomous outcomes (e.g., response, adverse events) and standardized mean differences (SMDs) for continuous outcomes (e.g., change in depression scores).

RESULTS

We identified 37 eligible studies (ranging from 1958 to 2016). We assessed nine psychostimulants: methylphenidate (n=14), dextroamphetamine (n=9), modafinil (n=6), lisdexamphetamine (n=3), methylamphetamine (n=3), pemoline (n=2), atomoxetine (n=1), desipramine (n=1), and imipramine (n=1). Overall, psychostimulants demonstrated efficacy for depression, reduced fatigue and sleepiness, and appeared well-tolerated. However, there was inconsistent evidence across particular psychostimulants. For example, the only psychostimulant which demonstrated efficacy for depression-in terms of both symptom severity and response rates-was methylphenidate.

CONCLUSIONS

While our review suggests that some psychostimulants-particularly methylphenidate-appear well-tolerated and demonstrate some efficacy for depression, as well as fatigue and sleepiness, the strength of evidence in our estimates was low to very low for most agents given the small sample sizes, few RCTs, and imprecision in most estimates. A lack of consistent evidence precludes a definitive hierarchy of treatments and points to a need for additional, high-quality RCTs.

The need for an integrated pharmacological response to the treatment of HIV/AIDS and depression

Introduction: The coexistence of depression and HIV infection affects more than 9 million people worldwide. A literature review revealed a large gap regarding the pharmacotherapy of depression among patients dually diagnosed with HIV and depression.Areas covered:In this review, the authors covered the various dimensions of deploying integrated pharmacological treatment of HIV/AIDS and depression. This topic was addressed in two ways; first, the direct results of integrated pharmacotherapy in syndemic patients; second, the indirect effects of the integrated model on other outcomes of HIV care.Expert opinion: An integrated pharmacological response to the treatment of HIV and depression can bring substantial benefits to HIV outcomes and reduce the burden of both diseases. The direct advantages regarding pharmacological response to the treatment of depression along with HIV care are improving adherence to antiretroviral therapy, optimizing pharmacotherapy, minimizing drug interaction, and prevention of additive adverse drug reactions. Furthermore, in some cases, medication can target both depression and other neuropsychiatric or somatic comorbidities among people living with HIV/AIDS. The integrated pharmacotherapy also has some potential indirect advantages on HIV care outcomes like minimizing loss of care, reducing ongoing HIV transmission, and improving the outcomes of both diseases.

Neurocovid: Pharmacological Recommendations for Delirium Associated With COVID-19

Background

The pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has emerged as one of the biggest health threats of our generation. A significant portion of patients are presenting with delirium and neuropsychiatric sequelae of the disease. Unique examination findings and responses to treatment have been identified.

Objective

In this article, we seek to provide pharmacologic and treatment recommendations specific to delirium in patients with COVID-19.

Methods

We performed a literature search reviewing the neuropsychiatric complications and treatments in prior coronavirus epidemics including Middle Eastern respiratory syndrome and severe acute respiratory syndrome coronaviruses, as well as the emerging literature regarding COVID-19. We also convened a work group of consultation-liaison psychiatrists actively managing patients with COVID-19 in our hospital. Finally, we synthesized these findings to provide preliminary pharmacologic recommendations for treating delirium in these patients.

Results

Delirium is frequently found in patients who test positive for COVID-19, even in the absence of respiratory symptoms. There appears to be a higher rate of agitation, myoclonus, abulia, and alogia. No data are currently available on the treatment of delirium in patients with COVID-19. Extrapolating from general delirium treatment, Middle Eastern respiratory syndrome/severe acute respiratory syndrome case reports, and our experience, preliminary recommendations for pharmacologic management have been assembled.

Conclusions

COVID-19 is associated with neuropsychiatric symptoms. Low-potency neuroleptics and alpha-2 adrenergic agents may be especially useful in this setting. Further research into the pathophysiology of COVID-19 will be key in developing more targeted treatment guidelines.

Drug-drug interactions and clinical considerations with co-administration of antiretrovirals and psychotropic drugs

Psychotropic medications are frequently co-prescribed with antiretroviral therapy (ART), owing to a high prevalence of psychiatric illness within the population living with HIV, as well as a 7-fold increased risk of HIV infection among patients with psychiatric illness. While ART has been notoriously associated with a multitude of pharmacokinetic drug interactions involving the cytochrome P450 enzyme system, the magnitude and clinical impact of these interactions with psychotropics may range from negligible effects on plasma concentrations to life-threatening torsades de pointes or respiratory depression. This comprehensive review summarizes the currently available information regarding drug-drug interactions between antiretrovirals and pharmacologic agents utilized in the treatment of psychiatric disorders-antidepressants, stimulants, antipsychotics, anxiolytics, mood stabilizers, and treatments for opioid use disorder and alcohol use disorder-and provides recommendations for their management. Additionally, overlapping toxicities between antiretrovirals and the psychotropic classes are highlighted. Knowledge of the interaction and adverse effect potential of specific antiretrovirals and psychotropics will allow clinicians to make informed prescribing decisions to better promote the health and wellness of this high-risk population.

Beyond ADHD and narcolepsy: psychostimulants in general psychiatry

Psychostimulants (dexamphetamine, methylphenidate, modafinil) reduce fatigue, promote alertness and wakefulness, and have possible mood-enhancing properties. In modern psychiatric practice, their use has been limited to attention-deficit hyperactivity disorder and sleep disorders such as narcolepsy. Despite this, research has continued into psychostimulant use in general psychiatry, especially in the treatment of depression and fatigue. This article reviews the recent literature regarding psychostimulant use in general and consultation-liaison psychiatry. Although psychostimulants continue to attract clinical research, there is currently not enough evidence to recommend their routine use for general psychiatric conditions.

Neurobehavioral Manifestations of Human Immunodeficiency Virus/AIDS: Diagnosis and Treatment

Behavioral disorders are common in persons infected with human immunodeficiency virus (HIV). The differential includes preexisting psychiatric diseases, substance abuse, direct effects of HIV infection, opportunistic infection, and the adverse effects of medical therapies. Many patients have more than one contributing or comorbid problem to explain these behavioral changes. The differential should always include consideration of psychosocial, genetic, and medical causes of disease. Treatment strategies must take into account the coadministration of antiretroviral therapy and the specific neurologic problems common in patients infected with HIV.

The role of methylphenidate in depression

Introduction

Depression is a burdening disease state where up to 30% of individuals do not respond to first-line treatment. Adjunctive use of psychostimulants has been investigated for the treatment of depression in patient populations, including those with treatment-resistant depression or terminal illness. The purpose of this paper is to present a review of the literature on the efficacy of using methylphenidate to manage depression.

Methods

A search was conducted in PubMed, Ovid/MEDLINE, and PsychINFO using the following key words: psychostimulants, stimulants, methylphenidate, alternative therapy, depression, and major depressive disorder. All reports included were published before June 30, 2015.

Results

For this review 10 reports, including randomized controlled, case series, and retrospective chart review studies, were identified and assessed. Patient populations studied included patients with treatment-resistant depression, patients with terminal illness, geriatric patients, and patients with miscellaneous indications, such as history of stroke and human immunodeficiency virus (HIV), or acquired immune deficiency syndrome (AIDS). For treatment-resistant depression, treatment differences for fatigue and apathy in favor of methylphenidate were found, but no difference was found for response rates in depression. Additionally, in palliative care and hospice patients, methylphenidate was found to improve fatigue and depressive symptoms. Patients with other conditions (poststroke and HIV patients) achieved some relief of depressive symptoms.

Conclusion

The efficacy data for methylphenidate in depression are limited, with inconsistent results in specific patient populations that limit external validity. At this time, it should not be recommended as first-line treatment in depression. Future research should be developed focusing on long-term safety and efficacy in nonspecialized patient populations.

Cognitive impairment in patients with AIDS - prevalence and severity

The advent of highly active antiretroviral therapy has prolonged the life expectancy of HIV patients and decreased the number of adults who progress to AIDS and HIV-associated dementia. However, neurocognitive deficits remain a pronounced consequence of HIV/AIDS. HIV-1 infection targets the central nervous system in subcortical brain areas and leads to high rates of delirium, depression, opportunistic central nervous system infections, and dementia. Long-term HIV replication in the brain occurs in astrocytes and microglia, allowing the virus to hide from antiviral medication and later compromise neuronal function. The associated cognitive disturbance is linked to both viral activity and inflammatory and other mediators from these immune cells that lead to the damage associated with HIV-associated neurocognitive disorders, a general term given for these disturbances. We review the severity and prevalence of the neuropsychiatric complications of HIV including delirium, neurobehavioral impairments (depression), minor cognitive-motor dysfunction, and HIV-associated dementia.

Ketamine for the treatment of depression in patients receiving hospice care: a retrospective medical record review of thirty-one cases

BACKGROUND

Depression is prevalent in patients receiving hospice care. Standard antidepressant medications do not work rapidly enough in this setting. Evidence suggests that ketamine rapidly treats treatment refractory depression in the general population. Ketamine׳s role for treating depression in the hospice population warrants further study.

METHODS

A retrospective medical record review of 31 inpatients receiving hospice care who received ketamine for depression on a clinical basis was conducted. The primary outcome measure was the Clinical Global Impression Scale, which was used retrospectively to rate subjects׳ therapeutic improvement, global improvement, and side effects from ketamine over 21 days. Additionally, time to onset of therapeutic effect was analyzed.

RESULTS

Using the Clinical Global Impression Scale, ketamine was found to be significantly therapeutically effective through the first week after ketamine dosing (p < 0.05), with 93% of patients showing positive results for days 0-3 and 80% for days 4-7 following ketamine dosing. Patients experienced global improvement during all 4 studied time periods following ketamine dosing (p < 0.05). Significantly more patients had either no side effects or side effects that did not significantly impair functioning at each of the 4 assessed time periods following ketamine dosing (p < 0.05). Additionally, significantly more patients experienced their first therapeutic response during days 0-1 following ketamine dosing (p < 0.001) than during any other time period.

CONCLUSIONS

These data suggest that ketamine may be a safe, effective, and rapid treatment for clinical depression in patients receiving hospice care. Blinded, randomized, and controlled trials are required to substantiate these findings and support further clinical use of this medication in hospice settings.

Cognitive neurorehabilitation of HIV-associated neurocognitive disorders: a qualitative review and call to action

Despite significant advances in the virologic management of HIV infection over the last two decades, effective treatments for HIV-associated neurocognitive disorders (HAND) remain elusive. While pharmacological interventions have yielded some success in improving neurocognitive outcomes in HIV, there is a dearth of rigorous studies examining the efficacy of cognitive rehabilitation for remediating HIV-associated neurocognitive impairment. This qualitative review summarizes and critiques the emerging literature on cognitive and behavioral treatments for HAND, which provides many reasons for optimism, but also has major limitations that underscore the scope of the work that lies ahead. Considering the notable real-world consequences of HAND, the development, validation, and clinical deployment of cognitive neurorehabilitation interventions tailored to the needs of persons living with HIV infection is a priority for clinical neuroAIDS investigators. In describing potential future directions for this endeavor, particular attention was paid to the application of cognitive neuropsychological principles in developing theory-driven approaches to managing HAND, improving everyday functioning, and enhancing HIV health outcomes.

Pharmacotherapy considerations in patients with HIV and psychiatric disorders: focus on antidepressants and antipsychotics

OBJECTIVE

To review the evidence for the efficacy and safety of pharmacologic agents for the treatment of depressive and psychotic disorders in patients with HIV infection and to provide clinical considerations for the treatment of depression and psychosis in these patients.

DATA SOURCES

PubMed was searched for articles published between 1966 and August 1, 2012, using the search terms antiretrovirals, HIV, AIDS, depression, psychosis, schizophrenia, antidepressant, antipsychotic, and individual drug names (fluoxetine, sertraline, paroxetine, citalopram, escitalopram, venlafaxine, duloxetine, mirtazapine, bupropion, haloperidol, perphenazine, fluphenazine, aripiprazole, asenapine, clozapine, iloperidone, lurasidone, olanzapine, paliperidone, quetiapine, risperidone, ziprasidone).

STUDY SELECTION AND DATA EXTRACTION

For the purposes of evaluating efficacy data, we limited our selection to randomized placebo-controlled or active comparator-controlled trials for agents that have been used for depression and psychosis in HIV-infected patients.

DATA SYNTHESIS

We found 11 studies for depression treatment and 1 study for psychosis treatment that met our inclusion and exclusion criteria. Selective serotonin reuptake inhibitors (SSRIs; especially fluoxetine) and tricyclic antidepressants appear to be effective in treating depressive symptoms in patients with HIV infection without affecting immune status. Testosterone, stimulants, and dehydroepiandrosterone may also be effective in subsyndromal depression; however, studies on these agents in general were limited by small sample size. There are limited data for antipsychotics, with the only controlled study found for haloperidol and chlorpromazine used for AIDS delirium. Drug-drug interactions and potentiation of metabolic syndrome are concerns for the combined use of antidepressants and antipsychotics with antiretrovirals.

CONCLUSIONS

Larger controlled studies are needed to validate the current findings as well as expand knowledge for non-SSRI antidepressants and second-generation antipsychotics for use in HIV-infected patients.

[Psychostimulants in the treatment of depression]

Psychostimulants promote alertness and reduce fatigues that have suggested their use in the treatment of depressive disorders in the early part of the 20th century. Overall, data support the use of psychostimulants in depression particularly in cases of drug resistance, when there is a severe physical illness or when short-term efficiency is needed, especially in the elderly. Psychostimulants are relatively better tolerated than conventional antidepressants, side effects concern less than 20% of patients. Nevertheless, they have to be prescribed carefully in front of the increased cases of misuse described by the literature and the French national committee of narcotics and psychotropics. Larger randomized, controlled trials with longer follow-up periods are needed to clarify a profile of response to psychostimulants, and assess the risk of developing tolerance or dependence on these substances.

HIV and depression--a systematic review of interventions

HIV-positive individuals are more likely to be diagnosed with major depressive disorder than HIV-negative individuals. Depression can precede diagnosis and be associated with risk factors for infection. The experience of illness can also exacerbate depressive episodes and depression can be a side effect to treatment. A systematic understanding of which interventions have been tested in and are effective with HIV-seropositive individuals is needed. This review aims to provide a comprehensive understanding of evaluated interventions related to HIV and depression and provide some insight on questions of prevalence and measurement. Standard systematic research methods were used to gather quality published papers on HIV and depression. From the search, 1015 articles were generated and hand searched resulting in 90 studies meeting adequacy inclusion criteria for analysis. Of these, 67 (74.4%) were implemented in North America (the US and Canada) and 14 (15.5%) in Europe, with little representation from Africa, Asia and South America. Sixty-five (65.5%) studies recruited only men or mostly men, of which 31 (35%) recruited gay or bisexual men. Prevalence rates of depression ranged from 0 to 80%; measures were diverse and rarely adopted the same cut-off points. Twenty-one standardized instruments were used to measure depression. Ninety-nine interventions were investigated. The interventions were diverse and could broadly be categorized into psychological, psychotropic, psychosocial, physical, HIV-specific health psychology interventions and HIV treatment-related interventions. Psychological interventions were particularly effective and in particular interventions that incorporated a cognitive-behavioural component. Psychotropic and HIV-specific health psychology interventions were generally effective. Evidence is not clear-cut regarding the effectiveness of physical therapies and psychosocial interventions were generally ineffective. Interventions that investigated the effects of treatments for HIV and HIV-associated conditions on depression generally found that these treatments did not increase but often decreased depression. Interventions are both effective and available, although further research into enhancing efficacy would be valuable. Depression needs to be routinely logged in those with HIV infection during the course of their disease. Specific data on women, young people, heterosexual men, drug users and those indiverse geographic areas are needed. Measurement of depression needs to be harmonized and management into care protocols incorporated.

Depression, anxiety and obsessive-compulsive symptoms and quality of life in children with attention-deficit hyperactivity disorder (ADHD) during three-month methylphenidate treatment

The current study was designed to investigate the changes that occur in depression, anxiety, obsessive-compulsive symptoms and health-related quality of life during methylphenidate (MPH) treatment in children with attention-deficit hyperactivity disorder (ADHD). Forty-five treatment naive children with ADHD, aged 8-14, were assessed based on self, parent and teacher reports at the baseline and at the end of the first and third month of MPH treatment regarding changes in inattention, hyperactivity, impulsivity, depression, anxiety and obsessive-compulsive symptoms. Changes in the quality of life were also noted. Repeated measures of analysis of variance (ANOVA) tests with Bonferroni corrections were conducted in order to evaluate the data. Symptoms of inattention, hyperactivity and impulsivity were significantly reduced (p < 0.017) following a three-month MPH treatment. There were significant decreases in depression (p = 0.004), trait anxiety (p = 0.000) and checking compulsion symptom scores (p = 0.001). Moreover, parents reported significant improvements in psychosocial (p = 0.001) and total scores (p = 0.009) of quality of life, despite no change in physical health scores (p > 0.05). Children's ratings of quality of life measures showed no significant changes in physical health and psychosocial scores (p > 0.05), while total scores significantly improved (p = 0.001) after the treatment. Over a three-month MPH treatment, depression, trait anxiety and checking compulsion symptoms decreased and quality of life seemed to improve along with those of inattention, hyperactivity and impulsivity.

Neuropharmacological mechanisms underlying the neuroprotective effects of methylphenidate

Methylphenidate is a psychostimulant that inhibits the neuronal dopamine transporter. In addition, methylphenidate has the intriguing ability to provide neuroprotection from the neurotoxic effects of methamphetamine and perhaps also Parkinson’s disease; both of which may likely involve the abnormal accumulation of cytoplasmic dopamine inside dopaminergic neurons and the resulting formation of dopamine-associated reactive oxygen species. As delineated in this review, the neuroprotective effects of methylphenidate are due, at least in part, to its ability to attenuate or prevent this abnormal cytoplasmic dopamine accumulation through several possible neuropharmacological mechanisms. These may include 1) direct interactions between methylphenidate and the neuronal dopamine transporter which may attenuate or prevent the entry of methamphetamine into dopaminergic neurons and may also decrease the synthesis of cytoplasmic dopamine through a D2 receptor-mediated signal cascade process, and 2) indirect effects upon the functioning of the vesicular monoamine transporter-2 which may increase vesicular dopamine sequestration through both vesicle trafficking and the kinetic upregulation of the vesicular monoamine transporter-2 protein. Understanding these neuropharmacological mechanisms of methylphenidate neuroprotection may provide important insights into the physiologic regulation of dopaminergic systems as well as the pathophysiology of a variety of disorders involving abnormal dopamine disposition ranging from substance abuse to neurodegenerative diseases such as Parkinson’s disease.

Treatment of psychiatric disorders in children and adolescents with HIV/AIDS

We could not have predicted that HIV/AIDS would become one of our greatest public health challenges worldwide when the first cases were identified in the 1980s. More than 22 million people have died from the disease, and HIV is now the seventh-leading cause of death in the United States among 15- to 24-year-olds. At the beginning of this pandemic, most HIV infections of youth were acquired congenitally. Prenatal screening of pregnant women, early detection, and antiretroviral therapies have reduced mother-to-child transmission. Children born with HIV infections are now young adults living with HIV, while other adolescents are acquiring HIV primarily through high-risk behaviors. Associations between psychiatric symptoms and poor health outcomes have been recognized among adults. Few studies have examined these factors among youth. We review what is known about psychiatric syndromes among HIV-positive youth, and their treatments.

Treatment considerations for psychiatric syndromes associated with HIV infection

Psychiatric syndromes associated with HIV disease were recognized early in the AIDS epidemic. Public education, new technologies and antiretroviral therapies have resulted in earlier recognition and therapautic interventions of HIV infection, improving the physical health for individuals living with HIV. While HIV-associated psychiatric symptoms have been recognized for more than 20 years, our understanding of the mechanisms underlying psychiatric symptoms among HIV-infected individuals and treatments for these symptoms have not kept pace with advances in HIV therapies. In this article, we discuss current knowledge of the psychiatric symptoms occurring with HIV disease, specifically mood, anxiety and psychotic disorders, evidence-based treatments and treatment considerations, new strategies for the treatments of psychiatric symptoms in HIV disease are also discussed.

Prioritising drugs for single patient (n-of-1) trials in palliative care

Many of the drugs prescribed commonly to palliative care patients have potentially significant side-effects and are of unproven benefit. The acquisition of evidence to support the prescribing of these drugs has been very slow. Single patient trials (SPTs) (also known as n-of-1 trials) offer a potential means of obtaining the evidence necessary to support or refute the use of several of the drugs and interventions whose use is currently based on physician experience or anecdote alone. A list of SPTs considered "most urgent", for commonly employed treatments and for the most common and most troublesome symptoms in palliative care is presented. These are drugs for which the gap between evidence and practice is greatest, where the evidence of efficacy is most lacking, where significant side effects potentially lead to the greatest morbidity, or where cost is a major patient burden. Although not all the drugs used in palliative care are suitable, SPTs provide a potential alternative method of gathering evidence in palliative care.

Methylphenidate for the treatment of depressive symptoms, including fatigue and apathy, in medically ill older adults and terminally ill adults

BACKGROUND

Depressive symptoms, fatigue, and apathy are common symptoms among medically ill older adults and patients with advanced disease, and have been associated with morbidity and mortality. Methylphenidate has been used to treat these symptoms because of its rapid effect. Despite the long history of methylphenidate use for the treatment of depressive symptoms, fatigue, and apathy, there is little definitive evidence to support its use.

OBJECTIVE

The aim of this paper was to review the efficacy and tolerability of methylphenidate in the treatment of depressive symptoms, fatigue, and apathy in medically ill older adults and adults receiving palliative care.

METHODS

English-language articles presenting systematic reviews, clinical trials, or case series describing the use of methylphenidate for the treatment of depressive symptoms, fatigue, or apathy in medically ill older adults or adults receiving palliative care were identified. The key words methylphenidate and either depressive, depression, fatigue, or apathy were used to search the Cochrane Database, MEDLINE, PsycINFO, and International Pharmaceutical Abstracts. Included articles addressed depressive symptoms, fatigue, or apathy in (1) older adults (generally, age > or =65 years), particularly those with comorbid medical illness; (2) adults receiving palliative care; and (3) adults with other chronic illnesses. I excluded articles regarding treatment of depression in healthy young adults; bipolar disorder and attention-deficit/hyperactivity disorder; and narcolepsy, chronic fatigue syndrome, and related disorders.

RESULTS

A total of 19 controlled trials of methylphenidate in medically ill older adults or patients in palliative care were identified. Unfortunately, their conflicting results, small sample sizes, and poor methodologic quality limited the ability to draw inferences regarding the efficacy of methylphenidate, although evidence of tolerability was stronger. The available evidence suggests possible effectiveness of methylphenidate for depressive symptoms, fatigue, and apathy in various medically ill populations.

CONCLUSION

In the absence of definitive evidence of effectiveness, trials of low-dose methylphenidate in medically ill adults with depression, fatigue, or apathy, with monitoring for response and adverse effects, are appropriate.

Psychopharmacology in HIV-infected patients

Neuropsychiatric disorders and syndromes may be underdiagnosed and inadequately treated in individuals infected with HIV. Depression in particular is among the most prevalent diagnoses, and data from controlled clinical studies have shown that antidepressant medications are efficacious and safe for treating depression in HIV-infected persons. A significant shortcoming of this literature is that most of the available data are from studies conducted before the advent of highly active antiretroviral therapy. In addition, apart from antidepressant medications, controlled studies systematically assessing efficacy and safety issues for other classes of psychotropic drugs (e.g., antipsychotic and anxiolytic medications) in HIV-infected persons are lacking. This review summarizes essential findings pertaining to the use of psychotropic medications to treat depression and other neuropsychiatric disorders in the context of HIV. It includes a discussion of clinically relevant treatment considerations (e.g., side effects, drug-drug interactions) derived from the existing literature as well as judgments that clinicians face in the absence of research data. Despite some shortcomings of the existing literature, overall there is compelling evidence that the appropriate use of psychotropic medications (coupled with behavioral therapy) can improve the quality of life of mentally ill HIV-infected individuals.

Psychostimulants for depression

BACKGROUND

Depression is common, disabling, costly and under-treated. There are problems in the current first-line drug treatment, antidepressants, for moderate or severe depression. There is a body of research that has evaluated the effect of psychostimulants (PS) in the treatment of depression. This has not been reviewed systematically.

OBJECTIVES

To determine the effectiveness of PS in the treatment of depression and to assess adverse events associated with PS.

SEARCH STRATEGY

Databases CCDANCTR-Studies and CCDANCTR-References were searched on 21/6/2006. Cochrane Central Register of Controlled Trials, MEDLINE, EMBASE, PsycInfo, AMED, CINAHL, Dissertation Abstracts and the National Health Service Research Register were searched.

SELECTION CRITERIA

Randomised controlled trials (RCTs) assessing the effectiveness of PS were included. The trial population comprised adults of either sex with a diagnosis of depression.

DATA COLLECTION AND ANALYSIS

Two review authors extracted the data independently and assessed trial quality. Meta-analysis was considered for trials with comparable key characteristics. The primary outcome was depression symptoms, based on a continuous outcome, using the standardised mean difference (SMD), or a dichotomous measure of clinical response, using odds ratios (OR), with 95% confidence intervals (CI).

MAIN RESULTS

Twenty-four RCTs were identified. The overall quality of the trials was low. Five drugs were evaluated; dexamphetamine, methylphenidate, methylamphetamine, pemoline and modafinil. Modafinil was evaluated separately as its pharmacology is different to that of the other PS. PS were administered as a monotherapy, adjunct therapy, in oral or intravenous preparation and in comparison with a placebo or an active therapy. Most effects were measured in the short term (up to four weeks). Thirteen trials had some usable data for meta-analyses. Three trials (62 participants) demonstrated that oral PS, as a monotherapy, significantly reduced short term depressive symptoms in comparison with placebo (SMD -0.87, 95% CI -1.40, -0.33, with non-significant heterogeneity. A similar effect was found for fatigue. In the short term PS were acceptable and well tolerated. Tolerance and dependence were under evaluated. No statistically significant difference in depression symptoms was found between modafinil and placebo.

AUTHORS' CONCLUSIONS

There is some evidence that in the short-term, PS reduce symptoms of depression. Whilst this reduction is statistically significant, the clinical significance is less clear. Larger high quality trials with longer follow-up and evaluation of tolerance and dependence are needed to test the robustness of these findings and, furthermore, to explore which PS may be more beneficial and in which clinical situations they are optimal.

Dopaminergic-based pharmacotherapies for depression

The serendipitous discovery of the precursors of two of the major contemporary antidepressant families during the late 1950s, iproniazid for the monoamine oxidase inhibitors (MAOIs) and imipramine for the tricyclic antidepressants (TCAs), has guided the subsequent development of antidepressant compounds with predominantly serotonergic, noradrenergic or combined serotonergic and noradrenergic activity. Unfortunately, however, many depressed patients continue to remain symptomatic despite adequate treatment with pharmacologic agents currently available. When one reviews the list of pharmacologic agents currently approved for the treatment of Major Depressive Disorder (MDD), it is apparent that relatively few treatments with dopaminergic activity have been developed to date. Therefore, developing effective antidepressant treatments with pro-dopaminergic properties which also possess a relatively wide safety margin may further improve the standard of care for depression. In the present article we will briefly review studies focusing on the role of dopamine in depression followed by a comprehensive review of pharmacotherapies for depression with pro-dopaminergic activity.

Gender differences in depression and response to psychotropic medication

BACKGROUND

In the United States, depression is approximately twice as common among women as among men, across all age groups.

OBJECTIVE

This review examines gender differences in the epidemiology and clinical presentation of depression, and explores whether women respond differently than men to antidepressant medications.

METHODS

This is a selective review focusing on current issues in the management of depression, with particular attention to gender differences in the epidemiology, diagnosis, and treatment of the disease.

RESULTS

Women are more likely than men to have atypical symptoms of depression (eg, hypersomnia, hyperphagia), to have comorbid anxiety disorders, and to attempt suicide. Women are also more likely to have seasonal affective disorder. Mood and anxiety symptoms that seem to be related to the menstrual cycle do not often represent genuine premenstrual dysphoria, but when premenstrual dysphoric disorder does occur, its impact on quality of life is similar to that of major depressive disorder. There is ongoing controversy about whether men and women respond equally well to antidepressant medications, and preliminary evidence suggests that selective serotonin reuptake inhibitors (SSRIs) are more effective in the presence of estrogen. Depression affects about 10% of pregnant women. Antidepressant medication should be considered during pregnancy if depression is moderate or severe, or if withdrawal of maintenance medication is likely to result in recurrent depression. The potential benefits of using antidepressant medications in a pregnant or breastfeeding woman should be balanced against the potential risks to the newborn. Because of the risk of neonatal withdrawal syndrome, SSRIs should be used at the lowest effective dose during the third trimester of pregnancy and should be tapered before delivery.

CONCLUSIONS

Continuing research is needed to determine how gender influences the risk, clinical presentation, and response to treatment of depression. Exploration of sex differences in animals and humans should aid in efforts to treat depression as an organic disorder rather than a psychological maladaptation.

Depression in HIV-infected men

Considerable gender disparity exists in the incidence of HIV/AIDS in men, with men experiencing the largest burden of this epidemic. In addition, over six million men in the United States experience depressive disorders. HIV-infected men experience the three most common depressive disorders-major depression, dysthymia, and bipolar disorder. Comorbidity associated with the dual diagnosis of HIV infection and common depressive disorders in men is a critical men's health issue. This article's purpose is to increase health care professionals' awareness and knowledge regarding the significant impact of a dual diagnosis of HIV infection and depression on men's health.

Psychotropic medications and HIV

Patients with human immunodeficiency virus (HIV) infection and acquired immune deficiency syndrome have high rates of psychiatric illness. The effective management of these psychiatric conditions can improve a patient's quality of life and may improve antiretroviral adherence. Care providers for patients with HIV infection frequently encounter clinical situations in which psychotropic medications are needed or are being used. Those clinical situations require familiarity with the broad category of medications termed "psychotropic." That familiarity should include a basic understanding of indications, adverse effects, and drug interactions. In particular, it is very important to recognize the many potential interactions based on cytochrome P450 metabolism, which is common to many psychotropics, the protease inhibitors, and the nonnucleoside reverse-transcriptase inhibitors. In a brief review of the use of psychotropic medications in patients with HIV infection, we discuss indications, adverse effects, and drug interactions for commonly used antidepressants, mood stabilizers, anxiolytics, antipsychotics, psychostimulants, and drugs of abuse.

Human immunodeficiency virus and depression in primary care: a clinical review

BACKGROUND

Human immunodeficiency virus (HIV)-infected individuals are at increased risk of developing depression. Depressive syndromes in these patients pose a challenge both diagnostically and therapeutically. These syndromes reflect both the presence of preexisting mood disorders and the development of depressive syndromes subsequent to HIV infection.

DATA SOURCES

A search of the literature to 2005 was performed using the PubMed and Ovid search engines. English- and Portuguese-language articles were identified using the following keywords: HIV or AIDS and depression, mental illness, suicide, fatigue, psychiatry, and drug interactions. Additional references were identified through bibliography reviews of relevant articles.

DATA SYNTHESIS

The clinical presentation and differential diagnosis of depressive symptoms in HIV illness and the role of HIV in the development of these conditions are reviewed. Management issues including suicide assessment and treatment options are then discussed, and potentially important pharmacokinetic interactions are reviewed.

CONCLUSIONS

Individuals with HIV show higher rates of depression. This phenomenon may be due to a preexisting psychiatric disorder or to the HIV infection. Untreated depression symptoms may lead to non-compliance with drug regimens or increased high-risk behaviors. Given the adverse sequelae of untreated depressions in HIV illness, identification and management of depression are integral components of comprehensive HIV care.

Efficacy of antidepressant medication among HIV-positive individuals with depression: a systematic review and meta-analysis

Depression is highly prevalent among HIV-positive individuals yet some, but not all, have not found antidepressant medication to be efficacious in this population. We performed a systematic review and meta-analysis of double-blinded, randomized controlled trials to examine efficacy of antidepressant treatment among HIV-positive depressed individuals and evaluate whether the results are generalizable to women and minorities. We used PubMed, the Cochrane Database, a search of bibliographies, and consultation with experts to find double-blinded, controlled clinical trials with random assignment to antidepressants or control condition for which HIV-positive patients met standard diagnostic criteria for depression. The principal measure of effect size was the standard difference between means on the Hamilton Depression Score (HDS). We identified 7 studies that included 494 subjects. Three of the 7 studies reported significant antidepressant effects. The pooled effect size from the random effects model was 0.57 (95% confidence interval [CI]: [0.28-0.85]). Heterogeneity across studies was significant (Q, 13.22; p = 0.07; I(2) = 47.1%). When stratified by placebo response, the pooled effect size for placebo response greater than 33% was 0.20 (-0.11-0.52) and not significant while the pooled effect size for placebo response greater than 33% was 0.80 (0.52-1.08) and was significant. Placebo response explained nearly 62% of the variance in effect sizes across studies. Women were nearly absent from and minorities were underrepresented in the studies investigated. Antidepressant medication is efficacious in treating depression among depressed, HIV-positive individuals. However, the underrepresentation of women and minorities limits the generalizability of these findings and suggests that future studies be directed to address this disparity.

Drug treatment of depression in HIV-positive patients : safety considerations

Safe and effective treatment of major depression, one of the most common comorbid conditions in individuals infected with HIV, significantly lowers morbidity and mortality from HIV disease. However, optimal treatment of both conditions is complicated by interactions between the disease processes as well as the pharmacological agents used to treat them. In patients with HIV it may be difficult to distinguish major depression from other physiological and emotional states that present with similar symptoms. Accurate diagnosis of major depression is thus complex and essential to preventing inappropriate exposure of patients to potentially harmful psychotropic medications. This review outlines important initial steps in making this diagnosis. All patients with HIV should be screened for depression by their medical providers and referred to a psychiatrist for full evaluation when necessary. The mainstay of treatment for major depression in patients with HIV disease is pharmacotherapy. Depressed patients with HIV respond to the same wide variety of antidepressant-class medications as depressed patients without HIV, including tricyclic antidepressants, paroxetine, fluoxetine and trazodone. Notably, new studies have also shown that some psychiatric medications can inhibit HIV replication. No particular antidepressant medication is superior for the treatment of depressed HIV-infected patients; however, the most important component of treatment of major depression in HIV-disease is patient adherence, which is highly influenced by antidepressant adverse effects. This review outlines adverse effects of antidepressant-class medications that are of particular concern in HIV-infected patients and describes pharmacological strategies for overcoming these potential barriers to medication adherence. This review also describes situations in which some adverse effects of antidepressant-class medications may be safely exploited to benefit depressed patients with HIV disease. Potential interactions between antidepressant-class medications and HIV medications, as well as pharmacological treatment strategies for treating the psychiatric adverse effects of HIV medications, are also discussed.

A neuropsychiatrist's perspective on selected dermatoses

Many neuropsychiatric diseases present with concomitant dermatologic manifestations. These manifestations may help the clinician formulate a correct diagnosis when it is otherwise unclear. In this article, we present six cases with clinical photographs of associated skin findings discussed from a neuropsychiatrist's perspective. Each case will be followed by a discussion and a brief review of the associated neuropsychiatric and dermatologic aspects of the disease.

Mood disorders in the medically ill: scientific review and recommendations

OBJECTIVE

The purpose of this review is to assess the relationship between mood disorders and development, course, and associated morbidity and mortality of selected medical illnesses, review evidence for treatment, and determine needs in clinical practice and research.

DATA SOURCES

Data were culled from the 2002 Depression and Bipolar Support Alliance Conference proceedings and a literature review addressing prevalence, risk factors, diagnosis, and treatment. This review also considered the experience of primary and specialty care providers, policy analysts, and patient advocates. The review and recommendations reflect the expert opinion of the authors.

STUDY SELECTION/DATA EXTRACTION

Reviews of epidemiology and mechanistic studies were included, as were open-label and randomized, controlled trials on treatment of depression in patients with medical comorbidities. Data on study design, population, and results were extracted for review of evidence that includes tables of prevalence and pharmacological treatment. The effect of depression and bipolar disorder on selected medical comorbidities was assessed, and recommendations for practice, research, and policy were developed.

CONCLUSIONS

A growing body of evidence suggests that biological mechanisms underlie a bidirectional link between mood disorders and many medical illnesses. In addition, there is evidence to suggest that mood disorders affect the course of medical illnesses. Further prospective studies are warranted.

Making advances where it matters: improving outcomes in mood and anxiety disorders

Mood and anxiety disorders are among the most prevalent psychiatric illnesses and are associated with considerable morbidity and mortality. Selective serotonin reuptake inhibitors (SSRIs) are safe and effective treatments for major depression and anxiety disorders, and have become the most widely prescribed antidepressants worldwide. However, several issues limit SSRI treatment outcomes. Although SSRIs have a wider therapeutic margin and a milder side-effect profile compared to earlier antidepressants, even minor SSRI side effects can have a major impact on treatment outcomes by interfering with patient compliance. Nausea is one of the most common early SSRI side effects, and advances in SSRI delivery systems can diminish this. A controlled-release formulation of paroxetine targets the site of absorption for a more distal region of the small intestine, thereby avoiding the stimulation of upper gastrointestinal serotonin receptors that mediate nausea. The sustained-release characteristics also reduce the amplitude in blood level peaks and troughs, which may lead to diminished side effects and enhanced efficacy. Sexual side effects and weight gain are important sustained SSRI side effects, which affect compliance during continuation and maintenance phases of treatment. Several strategies address SSRI sexual side effects, including the use of adjunctive medication and/or manipulations in the scheduling of drug administration. Depression negatively impacts the management of many medical illnesses, including cardiovascular disease, cancer, and infectious diseases. The recognition and treatment of depression leads to improved outcomes in the management of breast cancer. Prophylactic SSRI treatment significantly reduces the incidence of interferon-associated depression and enhances completion rates in malignant melanoma.

Prevalence, diagnosis, and pharmacological treatment of mood disorders in HIV disease

Human immunodeficiency virus seropositive (HIV+) individuals are at a heightened risk of developing mood disorders and related syndromes. Over the past several decades, increased rates of mood disorders, including depression and mania, have been reported among HIV+ individuals. Because alterations in mood may impact on quality of life and perhaps reduce adherence to antiretroviral treatment regimens that are critical for preventing disease progression, recognition and effective treatment of mood disorders is essential. There are accumulating data showing that antidepressants and mood stabilizers, as well as other novel agents, might benefit HIV+ individuals suffering from a concomitant mood disturbance. This review highlights the relevant studies that have examined prevalence rates of mood disorders in HIV+ individuals, characteristics of HIV disease that influence the diagnosis and psychopharmacologic treatment of mood disorders, including complex interactions with antiretroviral medications, as well as the available evidence regarding the efficacy of agents used to treat depression and mania in the context of HIV disease.

Neuropsychopharmacologic treatment of depression and other neuropsychiatric disorders in HIV-infected individuals

How can neuropsychiatric disorders and syndromes be underdiagnosed and inadequately treated in individuals infected with human immunodeficiency virus? Depression in particular is among the most prevalent diagnoses and there is a solid foundation of data from controlled clinical studies that has begun to examine the efficacy of various antidepressants in HIV-infected persons. This article summarizes essential findings pertaining to the use of psychotropic medications to treat depression and other neuropsychiatric disorders in the context of immunodeficiency. This includes discussion of clinically significant treatment considerations (eg, efficacy, side effects, drug-drug interactions) derived from the existing literature. Taken together, there is compelling evidence that psychopharmacologic intervention can improve the quality of life of mentally ill HIV-infected individuals.

Neuropsychiatric aspects of human immunodeficiency virus (HIV) infection

Human immunodeficiency virus (HIV) infection with central nervous system (CNS) involvement causes a variety of psychiatric complications among a significant proportion of infected individuals. A cure for the fully developed AIDS related to HIV infection remains elusive, and HIV/AIDS is a leading cause of death among adults between the ages of 25 and 44. Life expectancy, however, has gradually increased over the years, resulting in a concern for a potential increase in the incidence of secondary psychiatric manifestations. Knowledge of the neuropathology of HIV-CNS dysfunction and familiarity with its clinical presentation can aid clinicians in a determination of the appropriate therapy inclusive of psychiatric care that may be useful for a specific individual in their treatment.

Pharmacologic treatment of mood disorders in acquired immune deficiency syndrome (AIDS)

Mood disorders in HIV are common and can impact on the course of the illness. With the increasing use of newer psychopharmacologic and antiviral medications, clinicians need to take precautions while prescribing them. This paper gives an overview of the most recent literature describing the pharmacologic treatment of mood disorders in HIVpositive patients. The authors of this paper focus on antidepressants, mood stabilizers, neuroleptics, and psychostimulants, as well as on areas of controversy. The authors' own clinical experiences are also included.

Practical psychopharmacology in HIV-1 and acquired immunodeficiency syndrome

HIV-1 infection poses a challenge for psychiatrists of the medically ill. Many factors concerning the care of HIV-1-infected patients need to be considered when prescribing psychotropics. These include careful diagnosis, taking into account medical disorders associated with HIV-1 that can present with psychiatric symptoms, as well as medications that HIV-1 patients may be taking that can cause a variety of neuropsychiatric side effects. Another important issue is the potential for drug-illness interactions. In general, HIV-1 patients seem to be more sensitive to the development of adverse drug reactions than do non-HIV-1 patients, especially as the illness progresses. It is also important to be cognizant of the complex multidrug regimens that many HIV-1 patients are on to avoid known drug-drug interactions and be on the alert for other potential interactions when using psychotropic medications.

Depression among Patients with HIV/AIDS: A Treatment Dilemma

Increased longevity of HIV-infected individuals due to expanding pharmacological research allows a longer period of time for mood disorders to come to medical attention. A longer period of time exists in which the treatment of depression can make a difference in the quality of life, function, and course of HIV infection. Many HIV-related symptoms and concurrent treatment regimens can complicate the choices made regarding mood disorder treatments. Certain HIV/AIDS patients are at greater risk for developing depression, such as those with substance abuse/dependence. Differentiation between the clinical presentation of depression in the general population versus the HIV/AIDS population is important. Although differentiating between symptoms of depression, somatic complaints, and cognitive deficits may be difficult, specific symptoms in HIV-infected individuals prevail. Substantial evidence suggests that antidepressant therapy and psychotherapy are effective in most HIV-positive patients with major depression. One of the greatest difficulties in drug selection for the HIV-infected population is the avoidance of clinically significant drug-drug interactions between antidepressants and antiretrovirals. Evaluating the tolerability of antidepressant medications is also an important factor of effective treatment. This article attempts to clarify all the aforementioned issues pertaining to treatment choices in HIVinfected individuals suffering from depression.

Depression with psychomotor retardation: diagnostic challenges and the use of psychostimulants

A patient with advanced pancreatic cancer is presented to demonstrate the clinical challenge of diagnosing depression in palliative care. The conundrum related to the relative roles of somatic and psychological symptoms in screening or diagnosing depression in these patients is illustrated and discussed. There is no clear consensus on how to apply diagnostic criteria for diagnosing depression in these patients. Although an approach that focuses on the psychological symptoms is often suggested, it appears that somatic criteria cannot be entirely excluded. The case also highlights the use of methylphenidate to treat palliative care patients. As compared to traditional antidepressants that may take as long as 6-8 weeks to have a full effect, they offer the advantage of onset of action within a few days. This is especially helpful in patients with limited life expectancies. They appear to be particularly advantageous where psychomotor retardation is a main feature of the depression. The patient discussed demonstrated an observed and self-reported improvement of mood and psychomotor retardation following the initiation of psychostimulant treatment. Larger, controlled trials, using specified criteria to diagnose depression, are warranted to elucidate the role of psychostimulants in treating depression in palliative care patients.

Case Report of Severe Weight Loss Possibly Associated with Methylphenidate

Objective:

To document a case of severe weight loss in an adult depressed patient being treated with methylphenidate, nefazodone, and electroconvulsive therapy (ECT).

Case Summary:

A 57-year-old white, postmenopausal, nonsmoking, retired nurse with major depressive disorder (status post-ECT) presented to her internist with an involuntary weight loss of >21 kg over six months. Medications included aspirin, hydrochlorothiazide, nefazodone, docusate sodium, methylphenidate, salsalate, and conjugated estrogen. An extensive workup included colonoscopy, abdominal computed tomography (CT) scan, head CT scan, chest X-ray, pelvic ultrasound, Pap smear, mammogram, thyroid function tests, liver function tests, serum electrophoresis, and serum chemistries. All test results were unremarkable.

Discussion:

Methylphenidate was eventually suspected to be contributing to the sudden weight loss in our patient, due to its anorexic effects and a temporal association between the initiation of this drug and the weight loss. However, a MEDLINE search of adverse effects associated with methylphenidate did not identify reports of weight loss of this magnitude. Moreover, published reviews of psychostimulant treatment in adult patients with depressive disorders indicate that anorexia and weight loss are usually not observed.

Conclusions:

This case associates the use of methylphenidate, nefazodone, and ECT for the treatment of depression with significant weight loss in an adult. As the differential diagnosis for involuntary weight loss is expansive, secondary causes such as medications should be considered as possible cofactors precipitating weight loss.

Methylphenidate: its pharmacology and uses

Methylphenidate is a commonly used medication in the United States. This central nervous system stimulant has a mechanism of action distinct from that of amphetamine. The Food and Drug Administration has approved methylphenidate for the treatment of attention-deficit/hyperactivity disorder and narcolepsy. Treatment with methylphenidate has been advocated in patients with traumatic brain injury and stroke, cancer patients, and those with human immunodeficiency virus infection. Placebo-controlled trials have documented its efficacy as an adjunctive agent in the treatment of depression and pain. This article reviews the current understanding of the mechanism of action and efficacy of methylphenidate in various clinical conditions.

Psychiatric considerations in the diagnosis, treatment, and prevention of HIV/AIDS

HIV/AIDS has the unfortunate distinction of being one of the most devastating epidemics of the twentieth century. By the end of June, 1999, 420,201 deaths in persons with AIDS had been reported in the United States. While HIV/AIDS patients are currently living longer as a result of more effective and complex treatments, no vaccination or cure has yet been discovered. Over the years, the HIV/AIDS epidemic has become multifactorial and currently affects several different special population groups. Individuals who are at high risk for becoming infected with HIV or who already suffer from HIV/AIDS can benefit greatly from the interventions of psychiatrists or other mental health professionals. It is important that psychiatrists collaborate very closely with infectious disease specialists in the management of HIV/AIDS and its psychological sequelae. The authors describe the psychiatric conditions that most often occur in association with HIV/AIDS: mood disorders, anxiety disorders, substance-related disorders, psychotic disorders, insomnia and sleep disorders, delirium, dementia, and pain syndromes. We present guidelines for diagnosis and psychopharmacological and psychotherapeutic treatment of these disorders in patients with HIV/AIDS. The article concludes with a discussion of prevention strategies that can be used in a mental health treatment setting and special issues related to treating HIV/AIDS in certain special population groups.

Use of stimulants in the medically ill

This article discusses the use of psychostimulants, such as dextroamphetamine, methylphenidate, and pemoline, in a variety of illnesses, including depression in the medically ill, cancer, HIV, and AIDS. The chemistry and pharmacology, side effects, drug interactions, dosing, and abuse potential also are reviewed.