Treatment of major depressive disorder in children and adolescents

Treating the Psychological Distress in Children with Adventitious Blindness

Less than half of those who need mental health counseling receive it globally, underscoring the urgent need for psychology-focused intervention. According to data, 30.9% of Nigerians experience psychological anguish. This study investigated the efficacy and moderators of group cognitive behaviour therapy in psychologically distressed schoolchildren with adventitious blindness in Nigeria. A total of 98 students with adventitious blindness were recruited and participated in this study. The participants were assessed at three points using Perceived Emotional Distress Inventory. A mixed model ANCOVA with repeated measures shows that the CBT treatment had a dependable significant effect in decreasing psychological distress. The results showed that sociodemographic factors do not significantly moderate the efficacy of CBT treatment on the reduction of psychological distress in schoolchildren with adventitious blindness. In conclusion, the effect of a group cognitive behavioural therapy had a consistent significant reduction in psychological distress and none of their sociodemographic characteristics moderated the effects. Therefore, cognitive-behavioural practitioners should collaborate with special schools to diagnose and provide CBT treatment to schoolchildren living with adventitious blindness.

Child psychiatry and its relationship with the pharmaceutical industry: theoretical and practical issues

The pharmaceutical industry is primarily responsible to its shareholders and so making profit is its primary motivation. The industry's marketing techniques affect not only prescribing habits of doctors but also concepts of mental health. This editorial examines the impact this has had on both theory and practice in child and adolescent psychiatry. Undue influence by the pharmaceutical industry contributes to a skewing of the literature towards biological disease models of childhood mental health in order to support the use of the pharmaceutical companies' products. Using fluoxetine and stimulants as two case examples, the article illustrates how pharmaceutical companies have contributed to widespread acceptance of erroneous beliefs about the safety and efficacy of using psychotropic drugs in children and adolescents. Suggestions are made on how child psychiatrists, both individually and collectively, can incorporate this knowledge into their professional development and practice.

Therapeutic identification of depression in young people: lessons from the introduction of a new technique in general practice

BACKGROUND

Mild-to-moderate depression in young people is associated with impaired social functioning and high rates of affective disorder in adult life. Earlier recognition of depression in young people has the potential to reduce the burden of depression in adulthood. However, depression in teenagers is underdiagnosed and undertreated.

AIM

To assess the usability and usefulness of a cognitive-behavioural-therapy-based technique for Therapeutic Identification of Depression in Young people (TIDY).

DESIGN AND SETTING

A qualitative study of four group practices in northwest London.

METHOD

Face-to-face semi-structured interviews were conducted with practitioners who had been trained in the use of the TIDY technique.

RESULTS

Twenty-five GPs and six nurses were interviewed. The key themes that emerged from the interviews were: practitioners were 'making sense of teenage depression' when interpreting signs and symptoms; the training in the technique was variable in its impact on practitioners' attitudes and practice; and time factors constrained practitioners in the application of the technique.

CONCLUSION

The TIDY technique is usable in routine practice, but only if practitioners are allowed to use it selectively. This need for selectivity arises partly from concerns about time management, and partly to avoid medicalisation of psychological distress in young people. The perceived usefulness of the TIDY technique depends on the practitioner's prior knowledge, experience, and awareness.

Psychotropic drug use among Icelandic children: a nationwide population-based study

OBJECTIVE

The aim of this study was to investigate psychotropic drug use among children in Iceland between 2003 and 2007.

METHODS

A nationwide population-based drug use study covering the total pediatric population (ages 0-17) in Iceland. Information was obtained from the National Medicines Registry to calculate prevalence of use by year and psychotropic drug group; incidence by year, psychotropic drug group, child's age and sex, and medical specialty of prescriber; the most commonly used psychotropic chemical substances, off-label and unlicensed use and concomitant psychotropic drug use.

RESULTS

The overall prevalence of psychotropic drug use was 48.7 per 1000 Icelandic children in 2007. Stimulants and antidepressants increased in prevalence from 2003 to 2007 and were the two most prevalent psychotropic drug groups, respectively, 28.4 and 23.4 per 1000 children in 2007. A statistically significant trend of declining prevalence (p = 0.00013) and incidence (p = 0.0018) of antidepressant use occurred during the study period. Out of 21,986 psychotropic drugs dispensed in 2007, 25.4% were used off-label.

CONCLUSIONS

With reference to reports from other European countries, the results indicate extensive psychotropic drug use among children in Iceland between 2003 and 2007. Further scrutiny is needed to assess the rationale behind this widespread use.

Antidepressants in children and adolescents—changes in utilisation after safety warnings

BACKGROUND

Antidepressants, in particular selective serotonin reuptake inhibitors, are one of the most commonly used classes of psychotropic drug in children and adolescents. Beginning in June 2003, evidence emerged suggesting that antidepressants may increase risk of suicidal behaviour in young people. This evidence was accompanied by national and international guidelines cautioning against use of many antidepressants in young people. This study aimed to assess whether these safety warnings have impacted upon antidepressant utilisation rates.

METHOD

This study was based at a metropolitan health service incorporating children's and adult hospitals. Total service utilisation of antidepressants was extracted from pharmacy software for the period January 2002 to December 2005. Monthly utilisation rates were computed for adults and children's services as defined daily doses (DDD) per occupied bed days. Changes in utilisation over time were examined for children and adults.

RESULTS

There was a significant relationship between time and antidepressant utilisation in children and adolescents, where antidepressant use decreased over time (R = 0.474; t = -3.66; p < 0.01), and in particular, use of SSRIs (R = 0.461; t = -3.52; p < 0.01). In contrast, use of SSRIs (R = 0.587; t = 4.91; p < 0.001) and all antidepressants (R = 0.327; t = 2.35; p < 0.05) increased over time in adults.

CONCLUSIONS

National and international warnings about safety of antidepressants in children and adolescents appear to have influenced local utilisation of these medications in young people but not in adults. Further research is required to determine optimal utilisation rates.

The treatment of adolescent depression in the era of the black box warning

PURPOSE OF REVIEW

This paper reviews the epidemiology and sequelae of adolescent depression, recent studies of antidepressants and psychotherapeutic modalities for treatment of adolescent depression, and the black box warning from the United States Food and Drug Administration regarding the use of antidepressants in adolescents.

RECENT FINDINGS

Over the past 4 years, four major randomized placebo-controlled trials of selective serotonin reuptake inhibitors in adolescents have been published. Although each of these published studies concluded that the drug under study was efficacious, the United States Food and Drug Administration and others have offered words of caution. Over the past 2 years, there has been increasing concern that antidepressants may increase suicidal thinking and behavior (not completed suicide) in depressed adolescents. The United States Food and Drug Administration has issued a black box warning asking providers to use caution when prescribing antidepressants in children under the age of 18.

SUMMARY

Adolescent depression is common, socially and economically costly, and a potentially lethal disease. Recent studies of antidepressant use in adolescents have demonstrated variable efficacy and an increased risk of adverse events, including suicidality. The evidence is greatest to support the efficacy of fluoxetine, and thus it remains the only selective serotonin reuptake inhibitor approved by the United States Food and Drug Administration for the treatment of depression in children and adolescents. Psychotherapy is strongly encouraged in any patient for whom medication is prescribed. The risk of adverse events associated with antidepressant use requires caution when these medications are prescribed to adolescents. In an adolescent with depression, however, there is an inherent and greater risk to doing nothing.

The epidemiology of psychotropic drug use in children and adolescents

Despite the scarcity of evidence on the safety and efficacy of psychotropic drugs in the paediatric population, especially in the long-term, several epidemiological studies have reported an increase in their prescription rates. This increase is especially evident for stimulants and selective serotonin reuptake inhibitors. An analysis of the epidemiological data suggests that the risk of inappropriate use or abuse of these drugs is high. In such a context, not only is additional, independent and transparent research necessary, but also children with mental disorders (and their parents) must be guaranteed appropriate care.

A retrospective study of SSRI treatment in adolescent anorexia nervosa: insufficient evidence for efficacy

Although selective-serotonin-reuptake-inhibitors (SSRI) have been of limited efficacy in the treatment of eating disorder psychopathology and comorbid symptoms of malnourished patients with anorexia nervosa (AN), there is recent data suggesting that SSRI may play a role in preventing relapse among weight-restored patients. Though some previous studies included patients in late adolescence, the vast majority of investigated subjects have been adults. The aim of our retrospective study was to assess the effects of SSRI treatment in partially weight-restored children and adolescents with AN. Thirty two females with AN (mean 14.5+/-1.4 years) were investigated three times during inpatient treatment and at 3- and 6-month follow-up for BMI, eating disorder psychopathology, depressive symptomology, and obsessive-compulsive symptomology. Medication history during inpatient and outpatient treatment was reconstructed at the 6-month follow-up. Nineteen patients received SSRI treatment, while 13 subjects were non-medicated. In comparison to the non-SSRI group, the SSRI group had similar BMI and obsessive-compulsive scores, but higher levels of core eating disorder psychopathology and depressive symptoms at the start of medication. Rates of re-admissions were similar in both groups (SSRI group: 36%, non-SSRI group: 31%, Phi: p=0.72). Repeated measures ANOVA revealed no significant group with time interactions for BMI-SDS (p=0.84), core eating disorder symptoms (ANIS, p=0.79), depression (DIKJ, p=0.75), and obsessive-compulsive (CY-BOCS, p=0.40) scores indicating minimal or no effects of SSRI medication on the course of these variables. In conclusion, our results challenge the efficacy of SSRI medication in the treatment of eating disorder psychopathology as well as depressive and obsessive-compulsive comorbidity in adolescent AN. Clinicians should be chary in prescribing SSRI in adolescent AN unless randomized controlled trials have proofed the benefit of these drugs.

A placebo controlled crossover trial of liquid fluoxetine on repetitive behaviors in childhood and adolescent autism

Repetitive behaviors are a core symptom domain in autism that has been linked to alterations in the serotonin system. While the selective serotonin-receptive inhibitor fluvoxamine has been shown to be effective in adults with autism, as yet no published placebo controlled trials with these agents document safety and efficacy in children with autism. This study examines the selective serotonin reuptake inhibitor liquid fluoxetine in the treatment of repetitive behaviors in childhood and adolescent autism spectrum disorders (ASDs). In total, 45 child or adolescent patients with ASD were randomized into two acute 8-week phases in a double-blind placebo-controlled crossover study of liquid fluoxetine. Study design included two randomized 8-week fluoxetine and placebo phases separated by a 4-week washout phase. Outcome measures included measures of repetitive behaviors and global improvement. Low-dose liquid fluoxetine (mean final dose: 9.9+/-4.35 mg/day) was superior to placebo in the treatment of repetitive behaviors by CY-BOCS compulsion scale. The effect size was in the moderate to large range, and the doses used were low. Liquid fluoxetine was only slightly, and not significantly, superior to placebo on CGI autism score partially due to a phase order effect. However, fluoxetine was marginally superior to placebo on a composite measure of global effectiveness. Liquid fluoxetine did not significantly differ from placebo on treatment emergent side effects. Liquid fluoxetine in low doses is more effective than placebo in the treatment of repetitive behaviors in childhood autism. Limitations include small sample size and the crossover design of the study. Further replication and long-term maintenance trials are needed.

Inhibition of the serotonin (5-hydroxytryptamine) transporter reduces bone accrual during growth

Selective serotonin-reuptake inhibitors (SSRIs) antagonize the serotonin (5-hydroxytryptamine) transporter (5-HTT), and are frequently prescribed to children and adolescents to treat depression. However, recent findings of functional serotonergic pathways in bone cells and preliminary clinical evidence demonstrating detrimental effects of SSRIs on bone growth have raised questions regarding the effects of these drugs on the growing skeleton. The current work investigated the impact of 5-HTT inhibition on the skeleton in: 1) mice with a null mutation in the gene encoding for the 5-HTT; and 2) growing mice treated with a SSRI. In both models, 5-HTT inhibition had significant detrimental effects on bone mineral accrual. 5-HTT null mutant mice had a consistent skeletal phenotype of reduced mass, altered architecture, and inferior mechanical properties, whereas bone mineral accrual was impaired in growing mice treated with a SSRI. These phenotypes resulted from a reduction in bone formation without an increase in bone resorption and were not influenced by effects on skeletal mechanosensitivity or serum biochemistries. These findings indicate a role for the 5-HTT in the regulation of bone accrual in the growing skeleton and point to a need for further research into the prescription of SSRIs to children and adolescents.

A new paradigm for developing drugs in children: atomoxetine as a model

When prescribing drugs for children, it is fundamental to acknowledge that they are distinct from adults with a different physiology and metabolism. They are also still maturing. The development of drugs with a primarily paediatric indication thus requires the trialling of these drugs in a paediatric population to assess safety, tolerability, and efficacy as appropriately as possible. When designing and running a paediatric clinical trial, a number of complexities must be addressed to ensure a successful study, including practical considerations, ethical issues, and tailoring communication appropriately to study participants and parents. The drug development process for atomoxetine, a novel, non-stimulant treatment for attention deficit/hyperactivity disorder (ADHD), encompassed a preclinical programme, initial trials in healthy adults, and a proof of concept trial in adults with ADHD. Open label and placebo controlled studies in paediatric patients followed, thus establishing the drug's safety and efficacy in children with ADHD. Further trials have addressed, and continue to address, wider aspects of the atomoxetine response in a paediatric setting.

Rethinking childhood depression

Unhappiness among children seems to be rising, but labelling it as depression and prescribing antidepressants is ineffective and possibly harmful. It is time to focus on the underlying reasons

Selective serotonin reuptake inhibitors in childhood depression: systematic review of published versus unpublished data

BACKGROUND

Questions concerning the safety of selective serotonin reuptake inhibitors (SSRIs) in the treatment of depression in children led us to compare and contrast published and unpublished data on the risks and benefits of these drugs.

METHODS

We did a meta-analysis of data from randomised controlled trials that evaluated an SSRI versus placebo in participants aged 5-18 years and that were published in a peer-reviewed journal or were unpublished and included in a review by the Committee on Safety of Medicines. The following outcomes were included: remission, response to treatment, depressive symptom scores, serious adverse events, suicide-related behaviours, and discontinuation of treatment because of adverse events.

FINDINGS

Data for two published trials suggest that fluoxetine has a favourable risk-benefit profile, and unpublished data lend support to this finding. Published results from one trial of paroxetine and two trials of sertraline suggest equivocal or weak positive risk-benefit profiles. However, in both cases, addition of unpublished data indicates that risks outweigh benefits. Data from unpublished trials of citalopram and venlafaxine show unfavourable risk-benefit profiles.

INTERPRETATION

Published data suggest a favourable risk-benefit profile for some SSRIs; however, addition of unpublished data indicates that risks could outweigh benefits of these drugs (except fluoxetine) to treat depression in children and young people. Clinical guideline development and clinical decisions about treatment are largely dependent on an evidence base published in peer-reviewed journals. Non-publication of trials, for whatever reason, or the omission of important data from published trials, can lead to erroneous recommendations for treatment. Greater openness and transparency with respect to all intervention studies is needed.