Naturalistic follow-up of youths treated for pediatric anxiety disorders

Long-term remission and relapse of anxiety and depression in older adults after Cognitive Behavioural Therapy (CBT): A 10-year follow-up of a randomised controlled trial

BACKGROUND

This study examined the long-term durability of cognitive behaviour therapy (CBT) for older adults with comorbid anxiety and depression 10 years after treatment, in comparison to an active control group.

METHOD

Participants from a randomised controlled trial for older adults with comorbid anxiety and depression (Wuthrich et al., 2016) were re-contacted. Participants had received either group CBT or an active control treatment (Discussion Group). The final sample (N = 54; Aged 70-84, Mage = 76.07, SD = 3.83; 59 % of the eligible original sample) completed a diagnostic interview, cognitive assessment and self-report measures of symptoms and quality of life.

RESULTS

CBT was associated with significantly improved long-term (10-year) efficacy for reducing anxiety and depression in older adults compared to the Discussion group. Effects included higher rates of remission (58 % remission of all diagnoses vs 27 %, 88 % of all depressive diagnoses vs 54 %, 63 % of all anxiety diagnoses vs 35 %, 67 % of primary diagnosis vs 42 %), lower rates of relapse (25-31 % vs 50-78 %) and lower rates of chronic treatment-resistance (8 % primary disorder vs 39 %, 21 % any disorder vs 58 %). Participants who showed an acute treatment response at post-treatment were 7-9 times more likely to be in remission after 10 years than those with residual symptoms.

LIMITATIONS

Results may not generalise to those who do not complete CBT, and the time trajectory of symptom change is unclear.

CONCLUSIONS

Long-term improvements in symptoms are specific to CBT. Results provide compelling evidence for CBT as an effective and durable treatment for late-life anxiety and depression.

A Prelimbic Cortex-Thalamus Circuit Bidirectionally Regulates Innate and Stress-Induced Anxiety-Like Behavior

Anxiety-related disorders respond to cognitive behavioral therapies, which involved the medial prefrontal cortex (mPFC). Previous studies have suggested that subregions of the mPFC have different and even opposite roles in regulating innate anxiety. However, the specific causal targets of their descending projections in modulating innate anxiety and stress-induced anxiety have yet to be fully elucidated. Here, we found that among the various downstream pathways of the prelimbic cortex (PL), a subregion of the mPFC, PL-mediodorsal thalamic nucleus (MD) projection, and PL-ventral tegmental area (VTA) projection exhibited antagonistic effects on anxiety-like behavior, while the PL-MD projection but not PL-VTA projection was necessary for the animal to guide anxiety-related behavior. In addition, MD-projecting PL neurons bidirectionally regulated remote but not recent fear memory retrieval. Notably, restraint stress induced high-anxiety state accompanied by strengthening the excitatory inputs onto MD-projecting PL neurons, and inhibiting PL-MD pathway rescued the stress-induced anxiety. Our findings reveal that the activity of PL-MD pathway may be an essential factor to maintain certain level of anxiety, and stress increased the excitability of this pathway, leading to inappropriate emotional expression, and suggests that targeting specific PL circuits may aid the development of therapies for the treatment of stress-related disorders.

Substance use outcomes from the Child/Adolescent Anxiety Multimodal Extended Long-term Study (CAMELS)

BACKGROUND

Substance use problems and anxiety disorders are both highly prevalent and frequently cooccur in youth. The present study examined the benefits of successful anxiety treatment at 3-12 years after treatment completion on substance use outcomes (i.e. diagnoses and lifetime expected use).

METHODS

The sample was from the Child/Adolescent Anxiety Multimodal Extended Long-term Study (CAMELS), a naturalistic follow-up study to the Child/Adolescent Anxiety Multimodal Study (CAMS) which randomized youth to cognitive behavioral therapy (CBT; Coping cat), medication (sertraline), their combination, or pill placebo. The first CAMELS visit occurred an average of 6.5 years following CAMS randomization. Participants were 319 youth (65.4% of the CAMS sample), aged 7-17 years at CAMS baseline assessment with a mean age of 17.6 years (range: 11-26 years) at the time of the first CAMELS follow-up. Substance use outcomes included diagnoses as well as lifetime substance use (i.e. alcohol and tobacco use).

RESULTS

Eleven of 319 (3.4%) CAMELS participants were diagnosed with a substance use disorder at the initial follow-up visit. When compared to the population lifetime rate of 11.4%, the rate of diagnoses in the posttreated sample was significantly lower. Additionally, rates of lifetime alcohol use were lower than population rates at the initial and final follow-up visits. Rates of lifetime tobacco use were similarly lower than lifetime population rates at the initial visit (driven by significantly lower rates in the CBT treatment condition), but higher by the final visit. Furthermore, treatment remission (but not treatment response) was associated with a lower rate of substance use diagnoses at the initial follow-up visit, although rates of lifetime alcohol and tobacco use did not differ by treatment outcome.

CONCLUSIONS

Anxiety treatments confer a beneficial impact on problematic substance use (i.e. diagnoses) as well as on expected substance use (i.e. alcohol and tobacco use) for on average, a period of 6.5 years.

Therapeutic potential of cannabidiol (CBD) in anxiety disorders: A systematic review and meta-analysis

Cannabidiol (CBD), as one of the phytocannabinoids, has a wide range of therapeutic properties for various neuropsychiatric disorders due to central nervous system effects. These therapeutic properties demonstrated by preclinical and clinical studies encompass more than just anticonvulsant, anti-arthritic, analgesic, anti-inflammatory, antioxidant, antitumor, antiemetic, antipsychotic and neuroprotective effects. It has been hypothesized that CBD holds potential in the treatment of various neuropsychiatric and anxiety disorders. Thus, PRISMA was used as a guide for our systematic review. Eight of the 1550 articles screened in June 2023 were eligible for meta-analysis. Based on the 316 participants included in these eight articles, this meta-analysis revealed a substantial significant impact of CBD on anxiety with a considerable effect size (Hedges' g = -0.92, 95% CI -1.80 to -0.04). In addition, this meta-analysis focuses on the efficacy of CBD in treating anxiety disorders such as generalized anxiety disorder (GAD), social anxiety disorder (SAD), and post-traumatic stress disorder (PTSD). However, caution should be exercised in interpreting our findings due to the limited size of the clinical sample, and additional trials ought to be carried out if deemed necessary.

Cognitive Functioning in Youth with Anxiety Disorders: A Systematic Review

Anxiety disorders are disorders involving cognition. Research on cognition in youth with anxiety can focus on cognitive content (e.g., self-talk) as well cognitive functioning. The present review examines domains of cognitive functioning (i.e., episodic memory, language, attention, executive functioning, motor skills, and visual functioning) in youth diagnosed with an anxiety disorder. A database search of Embase, PsycINFO, and PubMed yielded 28 studies that met inclusion criteria of youth aged 17 years or younger, a sample diagnosed with a principal anxiety disorder and a comparison sample of controls, a comparison between those samples, and use of a behavioral measure of neuropsychological performance. Findings did not identify any cognitive functioning strengths for anxious youth. Deficits were found in two domains (i.e., receptive language and motor skills) whereas no deficits were found in attention, visuospatial skills and one domain of executive functioning (i.e., inhibition). Most domains had mixed findings. Additional analysis indicated that anxiety disorders in youth are not associated with diminished IQ. Directions for future research are identified including (a) the prioritization of studies with larger, representative samples (b) the role of cognitive functioning as a predictor of anxiety treatment outcome (c) the examination of the effect of treatment on cognitive performance, and (d) the course of anxiety and potential impairment in cognitive functioning.

Patterns of sub-optimal change following CBT for childhood anxiety

BACKGROUND

Children and adolescents demonstrate diverse patterns of symptom change and disorder remission following cognitive behavioural therapy (CBT) for anxiety disorders. To better understand children who respond sub-optimally to CBT, this study investigated youths (N = 1,483) who continued to meet criteria for one or more clinical anxiety diagnosis immediately following treatment or at any point during the 12 months following treatment.

METHODS

Data were collected from 10 clinical sites with assessments at pre-and post-treatment and at least once more at 3, 6 or 12-month follow-up. Participants were assigned to one of three groups based on diagnostic status for youths who: (a) retained an anxiety diagnosis from post to end point (minimal responders); (b) remitted anxiety diagnoses at post but relapsed by end point (relapsed responders); and (c) retained a diagnosis at post but remitted to be diagnosis free at end point (delayed responders). Growth curve models assessed patterns of change over time for the three groups and examined predictors associated with these patterns including demographic, clinical and parental factors, as well as treatment factors.

RESULTS

Higher primary disorder severity, being older, having a greater number of anxiety disorders, having social anxiety disorder, as well as higher maternal psychopathology differentiated the minimal responders from the delayed and relapsed responders at the baseline. Results from the growth curve models showed that severity of the primary disorder and treatment modality differentiated patterns of linear change only. Higher severity was associated with significantly less improvement over time for the minimal and relapsed response groups, as was receiving group CBT, when compared to the delayed response group.

CONCLUSIONS

Sub-optimal response patterns can be partially differentiated using variables assessed at pre-treatment. Increased understanding of different patterns of change following treatment may provide direction for clinical decision-making and for tailoring treatments to specific groups of clinically anxious youth. Future research may benefit from assessing progress during treatment to detect emerging response patterns earlier.

Ketamine's Amelioration of Fear Extinction in Adolescent Male Mice Is Associated with the Activation of the Hippocampal Akt-mTOR-GluA1 Pathway

Fear-related disorders, including post-traumatic stress disorder (PTSD), and anxiety disorders are pervasive psychiatric conditions marked by persistent fear, stemming from its dysregulated acquisition and extinction. The primary treatment for these disorders, exposure therapy (ET), relies heavily on fear extinction (FE) principles. Adolescence, a vulnerable period for developing psychiatric disorders, is characterized by neurobiological changes in the fear circuitry, leading to impaired FE and increased susceptibility to relapse following ET. Ketamine, known for relieving anxiety and reducing PTSD symptoms, influences fear-related learning processes and synaptic plasticity across the fear circuitry. Our study aimed to investigate the effects of ketamine (10 mg/kg) on FE in adolescent male C57 BL/6 mice at the behavioral and molecular levels. We analyzed the protein and gene expression of synaptic plasticity markers in the hippocampus (HPC) and prefrontal cortex (PFC) and sought to identify neural correlates associated with ketamine's effects on adolescent extinction learning. Ketamine ameliorated FE in the adolescent males, likely affecting the consolidation and/or recall of extinction memory. Ketamine also increased the Akt and mTOR activity and the GluA1 and GluN2A levels in the HPC and upregulated BDNF exon IV mRNA expression in the HPC and PFC of the fear-extinguished mice. Furthermore, ketamine increased the c-Fos expression in specific brain regions, including the ventral HPC (vHPC) and the left infralimbic ventromedial PFC (IL vmPFC). Providing a comprehensive exploration of ketamine's mechanisms in adolescent FE, our study suggests that ketamine's effects on FE in adolescent males are associated with the activation of hippocampal Akt-mTOR-GluA1 signaling, with the vHPC and the left IL vmPFC as the proposed neural correlates.

An Exposure-Based Cognitive-Behavioral Therapy for Youth with Severe Irritability: Feasibility and Preliminary Efficacy

OBJECTIVE

Clinically impairing irritability and temper outbursts are among the most common psychiatric problems in youth and present transdiagnostically; however, few mechanistically informed treatments have been developed. Here, we test the acceptability, feasibility, and preliminary efficacy of a novel exposure-based treatment with integrated parent management skills for youth with severe irritability using a randomized between-subjects multiple baseline design.

METHOD

N = 41 patients (Age, Mean (SD) = 11.23 years (1.85), 62.5% male, 77.5% white) characterized by severe and impairing temper outbursts and irritability were randomized to different baseline observation durations (2, 4, or 6 weeks) prior to active treatment; 40 participants completed the 12 session treatment of exposure-based cognitive-behavioral therapy for irritability with integrated parent management skills. Masked clinician ratings were acquired throughout baseline and treatment phases, as well as 3- and 6-months post-treatment. To examine acceptability and feasibility, drop-out rates and adverse events were examined. Primary clinical outcome measures included clinician-administered measures of irritability severity and improvement. Secondary clinical outcome measures included multi-informant measures of irritability, depression, anxiety, and attention-deficit/hyperactivity disorder symptoms.

RESULTS

No patients dropped out once treatment began, and no adverse events were reported. Irritability symptoms improved during the active phase of treatment across all measurements (all βs > -0.04, ps < .011, Cohen's d range: -0.33 to -0.98). Treatment gains were maintained at follow-up (all βs(39) < -0.001, ps > .400). Sixty-five percent of patients were considered significantly improved or recovered post-treatment based on the primary clinician-rated outcome measure.

CONCLUSIONS

Results support acceptability, feasibility, and preliminary efficacy of this novel treatment for youth with severe irritability. Limitations and future directions are also discussed.

The genetic architecture of youth anxiety: a study protocol

BACKGROUND

Anxiety disorders are the most common psychiatric problems among Canadian youth and typically have an onset in childhood or adolescence. They are characterized by high rates of relapse and chronicity, often resulting in substantial impairment across the lifespan. Genetic factors play an important role in the vulnerability toward anxiety disorders. However, genetic contribution to anxiety in youth is not well understood and can change across developmental stages. Large-scale genetic studies of youth are needed with detailed assessments of symptoms of anxiety disorders and their major comorbidities to inform early intervention or preventative strategies and suggest novel targets for therapeutics and personalization of care.

METHODS

The Genetic Architecture of Youth Anxiety (GAYA) study is a Pan-Canadian effort of clinical and genetic experts with specific recruitment sites in Calgary, Halifax, Hamilton, Toronto, and Vancouver. Youth aged 10-19 (n = 13,000) will be recruited from both clinical and community settings and will provide saliva samples, complete online questionnaires on demographics, symptoms of mental health concerns, and behavioural inhibition, and complete neurocognitive tasks. A subset of youth will be offered access to a self-managed Internet-based cognitive behavioral therapy resource. Analyses will focus on the identification of novel genetic risk loci for anxiety disorders in youth and assess how much of the genetic risk for anxiety disorders is unique or shared across the life span.

DISCUSSION

Results will substantially inform early intervention or preventative strategies and suggest novel targets for therapeutics and personalization of care. Given that the GAYA study will be the biggest genomic study of anxiety disorders in youth in Canada, this project will further foster collaborations nationally and across the world.

Obsessive-Compulsive Symptoms: Baseline Prevalence, Comorbidity, and Implications in a Clinically Anxious Pediatric Sample

Subclinical symptoms of obsessive-compulsive disorder (i.e., obsessive compulsive symptoms, or "OCS") cause functional impairment, including for youth without full-syndrome OCD. Further, despite high rates of OCS in youth with anxiety disorders, knowledge of OCS in the context of specific anxiety disorders is limited. The present study seeks to: (1) compare OCS in pediatric patients with anxiety disorders and healthy youth, (2) determine which categorical anxiety disorder(s) associate most with OCS, and (3) determine relationships between OCS with anxiety severity and impairment. Data on OCS, anxiety, and functional impairment were collected from 153 youth with anxiety disorders and 45 healthy controls, ages 7-17 years (M = 11.84, SD = 3.17). Findings indicated that patients had significantly more OCS than healthy controls. Among patients, GAD was a significant predictor of OCS as well as OCD risk. These results suggest that OCS should be a primary diagnostic and treatment consideration for youth who present in clinical settings with GAD.

A preliminary study of the effects of an antimuscarinic agent on anxious behaviors and white matter microarchitecture in nonhuman primates

Myelination subserves efficient neuronal communication, and alterations in white matter (WM) microstructure have been implicated in numerous psychiatric disorders, including pathological anxiety. Recent work in rodents suggests that muscarinic antagonists may enhance myelination with behavioral benefits; however, the neural and behavioral effects of muscarinic antagonists have yet to be explored in non-human primates (NHP). Here, as a potentially translatable therapeutic strategy for human pathological anxiety, we present data from a first-in-primate study exploring the effects of the muscarinic receptor antagonist solifenacin on anxious behaviors and WM microstructure. 12 preadolescent rhesus macaques (6 vehicle control, 6 experimental; 8F, 4M) were included in a pre-test/post-test between-group study design. The experimental group received solifenacin succinate for ~60 days. Subjects underwent pre- and post-assessments of: 1) anxious temperament (AT)-related behaviors in the potentially threatening no-eye-contact (NEC) paradigm (30-min); and 2) WM and regional brain metabolism imaging metrics, including diffusion tensor imaging (DTI), quantitative relaxometry (QR), and FDG-PET. In relation to anxiety-related behaviors expressed during the NEC, significant Group (vehicle control vs. solifenacin) by Session (pre vs. post) interactions were found for freezing, cooing, and locomotion. Compared to vehicle controls, solifenacin-treated subjects exhibited effects consistent with reduced anxiety, specifically decreased freezing duration, increased locomotion duration, and increased cooing frequency. Furthermore, the Group-by-Session-by-Sex interaction indicated that these effects occurred predominantly in the males. Exploratory whole-brain voxelwise analyses of post-minus-pre differences in DTI, QR, and FDG-PET metrics revealed some solifenacin-related changes in WM microstructure and brain metabolism. These findings in NHPs support the further investigation of the utility of antimuscarinic agents in targeting WM microstructure as a means to treat pathological anxiety.

Maternal Labor Force Participation During the Child's First Year and Later Separation Anxiety Symptoms

Separation anxiety symptoms are frequent among preschool-aged children, but it is also a possible gateway for diagnosis of separation anxiety disorder. Early maternal employment after childbirth can increase the risk for the development of separation anxiety symptoms. From an economic perspective, however, securing employment is one effective strategy to ensure child well-being. This study investigated how mothers' participation in the labor force (vs. maternal leave) and the financial state of families when the child was 5 months old was prospectively associated with separation anxiety symptoms. This study is based on 1,295 Canadian families with children assessed longitudinally from 17 months to age 6 on their levels of separation anxiety. Separation anxiety was measured during face-to-face interviews with the mothers. Maternal labor force participation, financial status, and risk factors were measured at 5 months. Results adjusted for propensity scores and for sample weight revealed that children of working mothers, despite having sufficient income (n = 245, 18.9%), were at higher risk of separation anxiety during early childhood. In contrast, maternity leave was most beneficial for children's separation anxiety, whether they were in a family with sufficient income (n = 950, 73.4%) or temporary low income (n = 100, 7.7%). Children of mothers in maternity leave were at risk of heightened separation anxiety only if they experienced chronic economic hardship. Therefore, maternity leave uptake could help prevent the development of separation anxiety. Providing families with opportunity to care for the baby as their main occupation during this sensitive developmental period could help improve children's mental health.

Effectiveness of unified protocol for trans diagnostic treatment in children with anxiety disorders: A randomized control trial

BACKGROUND

The Unified Protocol for Transdiagnostic Treatment of Emotional Disorders in Children (UP-C) is a theory-derived approach that can target the common underlying processes, such as the cognitive, emotional, and behavioral processes in emotional disorders in children aged 8-12 years. This study aimed to investigate UP-C's efficacy in treating children's anxiety disorders compared to cognitive behavior therapy (CBT).

MATERIALS AND METHODS

In this randomized control trial (RCT), with pre-test, post-test, and follow-up, 34 participants aged 8-12 with anxiety disorders were selected through the restricted randomization method and allocated to intervention (UP-C) or control (CBT) groups by random allocation rule. UP-C group consisted of 15 weekly individual sessions, and CBT included 16 weekly individual sessions. The Emotion Regulation Questionnaire for Children and Adolescents (ERQ-CA) and The Screen for Child Anxiety Related Disorders (SCARED-71) were completed in the pre-test, post-test, and three-month follow-up stages. The data of participants were analyzed using the repeated measure analysis of variance. A P- value under. 05 was regarded as significant.

RESULTS

Based on the repeated measures ANOVA, UP-C, and CBT significantly reduced anxiety symptoms (P = .002) and emotional suppression (P = .032). Moreover, UP-C and CBT significantly increased emotion regulation (P = .000) and cognitive reappraisal (P = .000).

CONCLUSION

The individual UP-C can be effective as anxiety-oriented CBT in treating anxiety disorders. Also, in the three months follow-up, the UP-C's effects were more stable and progressive than the CBT.

Gastrointestinal Symptoms in Pediatric Patients with Anxiety Disorders and Their Relationship to Selective Serotonin Reuptake Inhibitor Treatment or Placebo

Gastrointestinal symptoms are commonly reported as adverse effects of selective serotonin reuptake inhibitors (SSRIs), the first-line pharmacologic treatment for pediatric anxiety disorders; however, the temporal course of these symptoms during treatment, although believed to be transient, has never been prospectively evaluated. Additionally, rates of gastrointestinal symptoms and functional gastrointestinal syndromes in anxious youth are poorly understood. We examined gastrointestinal symptoms in youth with anxiety disorders during a double-blind, placebo-controlled trial of escitalopram (n = 51). Then, in a separate sample of prospectively treated children and adolescents with generalized, social and/or separation anxiety disorders (n = 56), we examined the frequency of gastrointestinal symptoms based on the Questionnaire on Pediatric Gastrointestinal Symptoms (QPGS) and ROME III criteria and the association of these symptoms with clinical and demographic characteristics using logistic regression. The frequency/severity of abdominal pain, diarrhea, bloating constipation or total gastrointestinal symptoms did not differ between patients receiving placebo (n = 25) or escitalopram (n = 26). However, escitalopram-treated youth had transient changes in nausea/vomiting and total upper gastrointestinal symptoms during the first two weeks of treatment. ROME III criteria for functional gastrointestinal syndromes were present in 12/56 patients (21.4%). QPGS-related functional gastrointestinal syndromes and symptoms were unrelated to treatment, treatment type, or clinical or demographic variables. Gastrointestinal symptoms are common in youth with anxiety and SSRIs produce transient-rather than sustained-gastrointestinal symptoms. Assessing gastrointestinal symptoms prior to pharmacotherapy and discussing factors that increase (or decrease) the likelihood of transient SSRI-related symptoms in youth may decrease patient uncertainty related to side effects and decrease medication-related anxiety.

Developmental Epidemiology of Pediatric Anxiety Disorders

This review summarizes the developmental epidemiology of childhood and adolescent anxiety disorders. It discusses the coronavirus disease of 2019 (COVID-19) pandemic, sex differences, longitudinal course, and stability of anxiety disorders in addition to recurrence and remission. The trajectory of anxiety disorders-whether homotypic (ie, the same anxiety disorder persists over time) or heterotypic (ie, an anxiety disorder shifts to a different diagnosis over time) is discussed with regard to social, generalized, and separation anxiety disorders as well as specific phobia, and panic disorder. Finally, strategies for early recognition, prevention, and treatment of disorders are discussed.

Pilot Study of Self-Distancing Augmentation to Exposure Therapy for Youth Anxiety

This pilot examines a self-distancing augmentation to exposure. Nine youth with anxiety (ages 11-17; 67% female) completed treatment. The study employed a brief (eight session) crossover ABA/BAB design. Exposure difficulty, engagement with exposure, and treatment acceptability were examined as primary outcome variables. Visual inspection of plots indicated that youth completed more difficult exposures during augmented exposure sessions [EXSD] than classic exposure sessions [EX] by therapist- and youth-report and that therapists reported higher youth engagement during EXSD than EX sessions. There were no significant differences between EXSD and EX on exposure difficulty or engagement by therapist- or youth-report. Treatment acceptability was high, although some youth reported that self-distancing was "awkward". Self-distancing may be associated with increased exposure engagement and willingness to complete more difficult exposures, which has been linked to treatment outcomes. Future research is needed to further demonstrate this link, and link self-distancing to outcomes directly.

Relational victimization prospectively predicts increases in error-related brain activity and social anxiety in children and adolescents across two years

Recent research has focused on identifying neural markers associated with risk for anxiety, including the error-related negativity (ERN). An elevated ERN amplitude has been observed in anxious individuals from middle childhood onward and has been shown to predict risk for future increases in anxiety development. The ERN is sensitive to environmental influences during development, including interpersonal stressors. Of note, one particular type of interpersonal stressor, relational victimization, has been related to increases in anxiety in adolescents. We tested whether relational victimization predicts increases in the ERN and social anxiety symptoms across two years in a sample of 152 child and adolescent females (ages 8 - 15). Results indicated that children and adolescents' baseline ERN was positively related to the ERN two years later. Furthermore, greater relational victimization at baseline predicted greater increases in the ERN two years later, controlling for baseline ERN. Moreover, relational victimization at baseline predicted increases in social anxiety, and this relationship was mediated by increases in the ERN. These results suggest that relational victimization impacts the developmental trajectory of the neural response to errors and thereby impacts increases in social anxiety among children and adolescents.

The Added Value of Crosstalk Between Developmental Circuit Neuroscience and Clinical Practice to Inform the Treatment of Adolescent Anxiety

Significant advances have been made in recent years regarding the developmental trajectories of brain circuits and networks, revealing links between brain structure and function. Emerging evidence highlights the importance of developmental trajectories in determining early psychiatric outcomes. However, efforts to encourage crosstalk between basic developmental neuroscience and clinical practice are limited. Here, we focus on the potential advantage of considering features of neural circuit development when optimizing treatments for adolescent patient populations. Drawing on characteristics of adolescent neurodevelopment, we highlight two examples, safety cues and incentives, that leverage insights from neural circuit development and may have great promise for augmenting existing behavioral treatments for anxiety disorders during adolescence. This commentary seeks to serve as a framework to maximize the translational potential of basic research in developmental populations for strengthening psychiatric treatments. In turn, input from clinical practice including the identification of age-specific clinically relevant phenotypes will continue to guide future basic research in the same neural circuits to better reflect clinical practices. Encouraging reciprocal communication to bridge the gap between basic developmental neuroscience research and clinical implementation is an important step toward advancing both research and practice in this domain.

Meta-Analysis: Relapse Prevention Strategies for Depression and Anxiety in Remitted Adolescents and Young Adults

OBJECTIVE

Depression and anxiety cause a high burden of disease and have high relapse rates (39%-72%). This meta-analysis systematically examined effectiveness of relapse prevention strategies on risk of and time to relapse in youth who remitted.

METHOD

PubMed, PsycInfo, Embase, Cochrane, and ERIC databases were searched up to June 15, 2021. Eligible studies compared relapse prevention strategies to control conditions among youth (mean age 13-25 years) who were previously depressed or anxious or with ≥30% improvement in symptoms. Two reviewers independently assessed titles, abstracts, and full texts; extracted study data; and assessed risk of bias and overall strength of evidence. Random-effects models were used to pool results, and mixed-effects models were used for subgroup analyses. Main outcome was relapse rate at last follow-up (PROSPERO ID: CRD42020149326).

RESULTS

Of 10 randomized controlled trials (RCTs) that examined depression, 9 were eligible for analysis: 4 included psychological interventions (n = 370), 3 included antidepressants (n = 80), and 2 included combinations (n = 132). No RCTs for anxiety were identified. Over 6 to 75 months, relapse was half as likely following psychological treatment compared with care as usual conditions (k = 6; odds ratio 0.56, 95% CI 0.31 to 1.00). Sensitivity analyses including only studies with ≥50 participants (k = 3), showed similar results. Over 6 to 12 months, relapse was less likely in youth receiving antidepressants compared with youth receiving pill placebo (k = 3; OR 0.29, 95% CI 0.10 to 0.82). Quality of studies was suboptimal.

CONCLUSION

Relapse prevention strategies for youth depression reduce risk of relapse, although adequately powered, high-quality RCTs are needed. This finding, together with the lack of RCTs on anxiety, underscores the need to examine relapse prevention in youth facing these common mental health conditions.

Adherence, Competence, and Alliance as Predictors of Long-term Outcomes of Cognitive Behavioral Therapy for Youth Anxiety Disorders

The present study investigated therapist adherence, therapist competence, and patient-therapist alliance as predictors of long-term outcomes of cognitive behavioral therapy (CBT) for anxiety disorders in youth. Potential differential effects for group versus individual CBT, for therapists with or without formal CBT training, and based on youth symptom severity were examined. Videotapes (n = 181) from treatment sessions in a randomized controlled effectiveness trial comprising youth (N = 170, M age = 11.6 years, SD = 2.1) with anxiety disorders were assessed for therapist adherence and competence. Alliance was rated by therapists and youth. Participants completed a diagnostic interview and an anxiety symptom measure at pre-treatment, post-treatment, one-year follow-up, and long-term follow-up (M = 3.9 years post-treatment, SD = 0.8, range = 2.2-5.9 years). The change in anxiety symptoms or diagnostic status from pre-treatment to long-term follow-up was not significantly related to any predictor variables. However, several interaction effects were found. For loss of principal diagnosis, therapist competence predicted positive outcome when therapist adherence also was high. Adherence was found to predict positive outcome if CBT was provided individually. Therapist-rated alliance was related to both loss of principal diagnosis and loss of all diagnoses when CBT was provided in groups. Interaction effects suggested that therapists displaying both high adherence and high competence produced better long-term outcomes. Further, the alliance may be particularly important for outcomes in group CBT, whereas adherence may be particularly important for outcomes in individual CBT.

Personalised app-based relapse prevention of depressive and anxiety disorders in remitted adolescents and young adults: a protocol of the StayFine RCT

INTRODUCTION

Youth in remission of depression or anxiety have high risks of relapse. Relapse prevention interventions may prevent chronicity. Aim of the study is therefore to (1) examine efficacy of the personalised StayFine app for remitted youth and (2) identify high-risk groups for relapse and resilience.

METHOD AND ANALYSIS

In this Dutch single-blind parallel-group randomised controlled trial, efficacy of app-based monitoring combined with guided app-based personalised StayFine intervention modules is assessed compared with monitoring only. In both conditions, care as usual is allowed. StayFine modules plus monitoring is hypothesised to be superior to monitoring only in preventing relapse over 36 months. Participants (N=254) are 13-21 years and in remission of depression or anxiety for >2 months. Randomisation (1:1) is stratified by previous treatment (no treatment vs treatment) and previous episodes (1, 2 or >3 episodes). Assessments include diagnostic interviews, online questionnaires and monitoring (ecological momentary assessment with optional wearable) after 0, 4, 12, 24 and 36 months. The StayFine modules are guided by certified experts by experience and based on preventive cognitive therapy and ingredients of cognitive behavioural therapy. Personalisation is based on shared decision-making informed by baseline assessments and individual symptom networks. Time to relapse (primary outcome) is assessed by the Kiddie Schedule for Affective Disorders and Schizophrenia-lifetime version diagnostic interview. Intention-to-treat survival analyses will be used to examine the data. Secondary outcomes are symptoms of depression and anxiety, number and duration of relapses, global functioning, and quality of life. Mediators and moderators will be explored. Exploratory endpoints are monitoring and wearable outcomes.

ETHICS, FUNDING AND DISSEMINATION

The study was approved by METC Utrecht and is funded by the Netherlands Organisation for Health Research and Development (636310007). Results will be submitted to peer-reviewed scientific journals and presented at (inter)national conferences.

TRIAL REGISTRATION NUMBER

NCT05551468; NL8237.

Translating Big Data to Clinical Outcomes in Anxiety: Potential for Multimodal Integration

PURPOSE OF THE REVIEW

This review describes approaches to research on anxiety that attempt to link neural correlates to treatment response and novel therapies. The review emphasizes pediatric anxiety disorders since most anxiety disorders begin before adulthood.

RECENT FINDINGS

Recent literature illustrates how current treatments for anxiety manifest diverse relations with a range of neural markers. While some studies demonstrate post-treatment normalization of markers in anxious individuals, others find persistence of group differences. For other markers, which show no pretreatment association with anxiety, the markers nevertheless distinguish treatment-responders from non-responders. Heightened error related negativity represents the risk marker discussed in the most depth; however, limitations in measures related to error responding necessitate multimodal and big-data approaches. Single risk markers show limits as correlates of treatment response. Large-scale, multimodal data analyzed with predictive models may illuminate additional risk markers related to anxiety disorder treatment outcomes. Such work may identify novel targets and eventually guide improvements in treatment response/outcomes.

A Single-Session Online Cognitive Bias Modification of Interpretations Modified for Adults With Anxiety and Depressive Symptoms

Anxiety and depression are common, co-occurring, and costly mental health disorders. Cognitive bias modification aims to modify biases to reduce associated symptoms. Few studies have targeted multiple biases associated with both anxiety and depression, and those that have lacked a control condition. This study piloted a single-session online cognitive bias modification (known as CBM-IA) designed to target two biases associated with anxiety and depression-interpretation bias and attribution style-in adults with varying levels of anxiety and depressive symptoms. Participants (18-26 years) with at least mild levels of anxiety/stress and depressive symptoms on the DASS-21 were randomly allocated to an intervention (n = 23) or a control (n = 22) condition. The training consisted of a single-session online CBM-IA to encourage positive interpretations and a positive attribution style. Interpretation bias, attribution style, anxious and depressive mood states, and anxiety, stress and depressive symptoms improved at posttraining and at follow-up, irrespective of condition. Changes in interpretation bias from pre- to posttraining were significantly associated with changes in anxious mood state. CBM-IA, as implemented in this single-session pilot study, did not significantly reduce targeted biases and symptoms compared to a control condition. This adds to the mixed evidence on the efficacy of single-session CBM-I for altering biases and symptoms.

Transdiagnostic Clinical Staging for Childhood Mental Health: An Adjunctive Tool for Classifying Internalizing and Externalizing Syndromes that Emerge in Children Aged 5-11 Years

Clinical staging is now recognized as a key tool for facilitating innovation in personalized and preventative mental health care. It places a strong emphasis on the salience of indicated prevention, early intervention, and secondary prevention of major mental disorders. By contrast to established models for major mood and psychotic syndromes that emerge after puberty, developments in clinical staging for childhood-onset disorders lags significantly behind. In this article, criteria for a transdiagnostic staging model for those internalizing and externalizing disorders that emerge in childhood is presented. This sits alongside three putative pathophysiological profiles (developmental, circadian, and anxious-arousal) that may underpin these common illness trajectories. Given available evidence, we argue that it is now timely to develop a transdiagnostic staging model for childhood-onset syndromes. It is further argued that a transdiagnostic staging model has the potential to capture more precisely the dimensional, fluctuating developmental patterns of illness progression of childhood psychopathology. Given potential improvements in modelling etiological processes, and delivering more personalized interventions, transdiagnostic clinical staging for childhood holds much promise for assisting to improve outcomes. We finish by presenting an agenda for research in developments of transdiagnostic clinical staging for childhood mental health.

Is interpretation bias for threat content specific to youth anxiety symptoms/diagnoses? A systematic review and meta-analysis

Anxiety is the most common mental health problem in youth. Numerous studies have identified that youth anxiety is associated with interpretation bias or the attribution of threatening meaning to ambiguity. Interpretation bias has been proposed as a mechanism underlying the development and maintenance of pediatric anxiety. Theoretically, interpretation bias should be content-specific to individual youth anxiety symptom domains. However, extant studies have reported conflicting findings of whether interpretation bias is indeed content specific to youth anxiety symptoms or diagnoses. The present meta-analysis aimed to synthesize the literature and answer the question: is the relationship between interpretation bias and anxiety content specific? Search of PubMed and PsycINFO databases from January 1, 1960 through May 28, 2019 yielded 9967 citations, of which 19 studies with 20 comparisons and 2976 participants met eligibility criteria. Meta-analysis with random effects models was conducted to examine an overall effect (Pearson r) between anxiety domain and content-specific interpretation bias in single sample studies, and an overall effect size difference (Cohen's d) in studies comparing anxious to non-anxious youth. Results support a content specific correlation between interpretation bias and anxiety symptom domain in single sample studies (r = 0.18, p = 0.03). However, it is currently undetermined whether this relationship holds in studies that compare the relationship between content-specific interpretation bias and anxiety in anxious versus non-anxious youth. A variety of methodologic considerations across studies are discussed, with implications for further investigation of interpretation bias and youth anxiety.

The role of parental anxiety symptoms in the treatment of childhood social anxiety disorder

The study investigated the role of parental anxiety symptoms in treatment outcomes for children with a primary social anxiety disorder compared to children with other primary anxiety disorders. Participants were 152 children between 7 and 18 years and their parents (146 mothers, 123 fathers). Anxiety was assessed pretreatment, posttreatment, and at three months and one year follow ups. There were no baseline differences in parental anxiety symptoms between the two groups. In both groups parental anxiety symptoms decreased from pretreatment to posttreatment, and only mothers' anxiety symptoms decreased further from posttreatment to the one year follow up. Parental anxiety symptoms before the treatment were not related to the being free of all anxiety diagnoses in the children at posttreatment. However, some indications were found for greater improvements during treatment when parents had higher anxiety symptoms before treatment. Changes in parental anxiety symptoms were found to be related to changes in child anxiety symptoms. This was not found for the total clinical severity of all inclusion anxiety disorders. This relation was visible independently in fathers or mothers, or in groups of children with a primary social anxiety disorder or with another primary anxiety disorder. In conclusion, we did not find clear indications that parental anxiety symptoms explain the differences in treatment outcomes for children with a primary social anxiety disorder compared to children with other primary anxiety disorders. More research with larger samples is needed to draw stronger conclusions.

Long-term effectiveness and trajectories of change after treatment with SMART, a transdiagnostic CBT for adolescents with emotional problems

Background

There is a need for long-term effectiveness trials of transdiagnostic treatments. This study investigates the effectiveness and diagnosis-specific trajectories of change in adolescent patients attending SMART, a 6-week transdiagnostic CBT for anxiety and depression, with 6-month follow-up.

Methods

A randomized controlled trial with waiting list control (WLC) was performed at three child and adolescent mental health outpatient services (CAMHS) in Norway. Referred adolescents (N = 163, age = 15.72, 90.3% females) scoring 6 or more on the emotional disorders subscale of the Strengths and Difficulties Questionnaire (SDQ) were randomly assigned to treatment or to WLC. Long-term follow-up (N = 83, baseline age = 15.57, 94% females) was performed 6 months after treatment completion (Mean = 7.1 months, SD = 2.5). Linear mixed model analysis was used to assess time by group effects in patients with no diagnosis, probable anxiety, depressive disorder, and combined anxiety and depressive disorder.

Results

Almost one third (31%) obtained full recovery according to the inclusion criterium (SDQ emotional). There was highly significant change in all outcome variables. Effect sizes (ES) were largest for general functioning, measured with CGAS (ES: d = 2.19), and on emotional problems measured with SDQ (ES: d = 2.10), while CORE-17, BDI-II and CGAS all obtained ES’s close to 1. There were no significant time by diagnostic group interactions for any outcomes, indicating similar trajectories of change, regardless of diagnostic group. Waiting 6 weeks for treatment had no significant impact on long-term treatment effects.

Limitations

Possible regression to the mean. Attrition from baseline to follow-up.

Conclusions

Six weeks of transdiagnostic treatment for adolescents with emotional problems showed highly significant change in emotional symptoms and functioning at 6-month follow-up. Patients with anxiety, depression, combined anxiety and depression, and emotional problems with no specific diagnoses, all had similar trajectories of change. Hence this transdiagnostic SMART treatment can be recommended for adolescent patients with symptoms within the broad spectrum of emotional problems.

Trial registration: ClinicalTrials.gov Identifier: NCT02150265. First registered May 29, 2014.

Interpretation Bias and Anticipated Distress in the Face of Ambiguity: Predictors of Change in Cognitive Behavioral Therapy for Youth Anxiety

This study examined associations among children's anxiety, interpretation bias, and anticipated distress before and after cognitive behavioral therapy (CBT) and investigated baseline levels of interpretation bias and anticipated distress as well as changes in these cognitive biases following treatment as predictors of treatment outcome. Clinically anxious youth (N = 39) were treated with brief CBT augmented with a smartphone app. Children completed measures assessing their anxiety, interpretation bias, and anticipated distress at baseline, post-treatment, and 2-month follow-up. Children's anxiety, interpretation bias, and anticipated distress significantly decreased following treatment. Anticipated distress was associated with higher anxiety at all time points; however, interpretation bias was not significantly associated with anxiety before or after treatment. Reductions in anticipated distress following treatment predicted concurrent and prospective reductions in anxiety. Reduced anticipated distress following treatment may contribute to enhanced treatment outcomes and may be more strongly related to the maintenance of youth anxiety than interpretation bias.

Association between traffic-related air pollution and anxiety hospitalizations in a coastal Chinese city: are there potentially susceptible groups?

Motor vehicle exhaust emissions have become the main source of urban air pollution in China, but few studies have explored the association of short-term exposure to traffic-related air pollutants (TRAPs) with anxiety disorders. Thus, we used an overdispersed, generalized additive model (GAM) to investigate the association between TRAPs and hospital admissions (HAs) for anxiety in Qingdao, a coastal Chinese city with high vehicle ownership. In addition, stratified analyses were performed by gender, age, season and hospitalization frequency (first admission and readmission). A positive association between TRAPs and HAs for anxiety was observed. Both inhalable particulate matter (PM₁₀) and nitrogen dioxide (NO₂) showed significant effects at lag 3 in the single-day lag structure, and each 10 μg/m³ increase in the concentrations was significantly associated with increases of 0.88% [95% confidence interval (CI): 0.04%, 1.72%] for PM₁₀ and 2.74% (0.45%, 5.08%) for NO₂ on anxiety hospitalizations. For fine particulate matter (PM_2.5) and carbon monoxide (CO), the strongest effects were found at lag05 and lag04 [2.67% (0.77%, 4.62%) and 0.19% (0.04%, 0.34%), respectively] in the multiday lag structure. The estimates of PM_2.5 were relatively robust after adjusting for other pollutants in the two-pollutant model. Stratified analyses indicated that the associations were stronger in females and younger individuals (<45 in age) than in males and elderly individuals (≥45 in age). Furthermore, the effects of PM_2.5 and CO were most obvious during the cold season. Regarding hospitalization frequency, only PM_2.5 was found to have a significant effect in the first-admission group. The results showed that short-term exposure to TRAPs, especially to PM_2.5, was significantly associated with the increased risk of daily HAs for anxiety, which can help clinicians and policymakers better understand the effects of TRAPs to implement targeted interventions.

Fear conditioning and stimulus generalization in association with age in children and adolescents

The aim of the study was to investigate age-related differences in fear learning and generalization in healthy children and adolescents (n = 133), aged 8-17 years, using an aversive discriminative fear conditioning and generalization paradigm adapted from Lau et al. (2008). In the current task, participants underwent 24 trials of discriminative conditioning of two female faces with neutral facial expressions, with (CS+) or without (CS-) a 95-dB loud female scream, presented simultaneously with a fearful facial expression (US). The discriminative conditioning was followed by 72 generalization trials (12 CS+, 12 GS1, 12 GS2, 12 GS3, 12 GS4, and 12 CS-): four generalization stimuli depicting gradual morphs from CS+ to CS- in 20%-steps were created for the generalization phases. We hypothesized that generalization in children and adolescents is negatively correlated with age. The subjective ratings of valence, arousal, and US expectancy (the probability of an aversive noise following each stimulus), as well as skin conductance responses (SCRs) were measured. Repeated-measures ANOVAs on ratings and SCR amplitudes were calculated with the within-subject factors stimulus type (CS+, CS-, GS1-4) and phase (Pre-Acquisition, Acquisition 1, Acquisition 2, Generalization 1, Generalization 2). To analyze the modulatory role of age, we additionally calculated ANCOVAs considering age as covariate. Results indicated that (1) subjective and physiological responses were generally lower with increasing age irrespective to the stimulus quality, and (2) stimulus discrimination improved with increasing age paralleled by reduced overgeneralization in older individuals. Longitudinal follow-up studies are required to analyze fear generalization with regard to brain maturational aspects and clarify whether overgeneralization of conditioned fear promotes the development of anxiety disorders or vice versa.

Directional effects of parent and child anxiety 1 year following treatment of child anxiety, and the mediational role of parent psychological control

BACKGROUND

We leveraged a recent efficacy trial to investigate directionality between parent anxiety and child anxiety at posttreatment and 12-month follow-up, and the potential role of parent psychological control as a mediator. We also explored child age and sex as moderators.

METHOD

Two-hundred and fifty-four children were randomized to individual cognitive behavioral therapy (CBT) or to one of two CBT arms with parent involvement. Parent anxiety was not a treatment target in any of the three arms.

RESULTS

Child anxiety at posttreatment was associated with parent anxiety and psychological control at 12-month follow-up, providing evidence of child-to-parent directionality. Parent anxiety at posttreatment was associated indirectly with child anxiety at 12-month follow-up through associations with parent psychological control, providing evidence of parent-to-child directionality. At posttreatment, parent psychological control contemporaneously mediated the relation between parent and child anxiety. Neither child age nor sex moderated any association.

CONCLUSIONS

Findings highlight the directional effects between child anxiety, parent anxiety, and psychological control from posttreatment to 12-month follow-up, even when parent anxiety is not a treatment target. Research and clinical implications are discussed, with an emphasis on enhancing durability following treatment effects.

Long-term use of antidepressants, mood stabilizers, and antipsychotics in pediatric patients with a focus on appropriate deprescribing

It is estimated that 8% to 12% of youth are prescribed psychotropic medications. Those in foster care, juvenile justice systems, residential treatment facilities, and with developmental or intellectual disabilities are more likely to be prescribed high-risk regimens. The use of psychotropic medications in this age group is often off-label and can be associated with significant risk, warranting critical evaluation of their role. Landmark trials, pediatric-specific guidelines, and state-driven initiatives play critical roles in supporting evidence-based use of psychotropic medications in children. Overall, there is a lack of literature describing the long-term use of psychotropic medications in youth—particularly with regard to neurobiological, physical, and social changes that occur throughout development. Deprescribing is an important practice in child and adolescent psychiatry, given concerns for over-prescribing, inappropriate polytherapy, and the importance of reevaluating the role of psychotropic medications as children develop.

Fear extinction learning and retention during adolescence in rats and mice: A systematic review

Despite exposure-based treatments being recommended for anxiety disorders, these treatments are ineffective for over half of all adolescents who receive them. The limited efficacy of exposure during adolescence may be driven by a deficit in extinction. Although indications of diminished extinction learning during adolescence were first reported over 10 years ago, these findings have yet to be reviewed and compared. This review (k = 34) found a stark inter-species difference in extinction performance: studies of adolescent mice reported deficits in extinction learning and retention of both cued and context fear. In contrast, studies of adolescent rats only reported poor extinction retention specific to cued fear. Adolescent mice and rats appeared to have only one behavioral outcome in common, being poor extinction retention of cued fear. These findings suggest that different behavioral phenotypes are present across rodent species in adolescence and highlight that preclinical work in rats and mice is not interchangeable. Further investigation of these differences offers the opportunity to better understand the etiology, maintenance, and treatment of fear-based disorders.

The social instability stress paradigm in rat and mouse: A systematic review of protocols, limitations, and recommendations

BACKGROUND

Social stress is an important environmental risk factor for the development of psychiatric disorders, including depression and anxiety disorders. Social stress paradigms are commonly used in rats and mice to gain insight into the pathogenesis of these disorders. The social instability stress (SIS) paradigm entails frequent (up to several times a week) introduction of one or multiple unfamiliar same-sex home-cage partners. The subsequent recurring formation of a new social hierarchy results in chronic and unpredictable physical and social stress.

PURPOSE

We compare and discuss the stress-related behavioral and physiological impact of SIS protocols in rat and mouse, and address limitations due to protocol variability. We further provide practical recommendations to optimize reproducibility of SIS protocols.

METHODS

We conducted a systematic review in accordance with the PRISMA statement in the following three databases: PubMed, Web of Science and Scopus. Our search strategy was not restricted to year of publication but was limited to articles in English that were published in peer-reviewed journals. Search terms included "social* instab*" AND ("animal" OR "rodent" OR "rat*" OR "mice" OR "mouse").

RESULTS

Thirty-three studies met our inclusion criteria. Fifteen articles used a SIS protocol in which the composition of two cage mates is altered daily for sixteen days (SIS16D). Eleven articles used a SIS protocol in which the composition of four cage mates is altered twice per week for 49 days (SIS49D). The remaining seven studies used SIS protocols that differed from these two protocols in experiment duration or cage mate quantity. Behavioral impact of SIS was primarily assessed by quantifying depressive-like, anxiety-like, social-, and cognitive behavior. Physiological impact of SIS was primarily assessed using metabolic parameters, hypothalamus-pituitary-adrenal axis activity, and the assessment of neurobiological parameters such as neuroplasticity and neurogenesis.

CONCLUSION

Both shorter and longer SIS protocols induce a wide range of stress-related behavioral and physiological impairments that are relevant for the pathophysiology of depression and anxiety disorders. To date, SIS16D has only been reported in rats, whereas SIS49D has only been reported in mice. Given this species-specific application as well as variability in reported SIS protocols, additional studies should determine whether SIS effects are protocol duration- or species-specific. We address several issues, including a lack of consistency in the used SIS protocols, and suggest practical, concrete improvements in design and reporting of SIS protocols to increase standardization and reproducibility of this etiologically relevant preclinical model of social stress.

Associations between parental distress and pediatric anxiety and obsessive-compulsive disorder treatment outcomes

This study investigated whether an intensive group-based cognitive-behavioral therapy program with family involvement for children with anxiety disorders and obsessive-compulsive disorder could help reduce parental distress by addressing the larger family system. This study also examined associations between parental distress and parent-reported child outcomes of treatment. Two hundred ninety-nine children and adolescents, ages 6-19, who were patients in the intensive treatment program and their caregivers participated in this intervention-based study. Parents reported significant reductions in their own distress from admission to discharge, and greater reductions in parent-reported distress predicted greater reductions in parents' reports of their children's anxiety symptoms and the degree of child functional impairment. Higher levels of parent-reported parent mental health symptoms at children's admission and at discharge were associated with poorer levels of functioning in children at discharge. Parents' mental health symptoms may play a critical role in children and adolescents' treatment outcomes and therefore may need to be a separate treatment target.

Effects of music therapy on anxiety: A meta-analysis of randomized controlled trials

This study aims to evaluate the efficacy of music therapy on anxiety from randomized controlled trials (RCTs). The following electronic databases were utilized for selecting eligible studies that were published from inception to March 2021: PubMed, Cochrane Library, PsycINFO, Medline, Web of Science, and Embase. Standard mean difference (SMD) with 95% confidence interval (CI) values were used to evaluate the efficacy of music therapy on anxiety. Thirty-two studies with 1,924 participants were included in the meta-analysis. Music therapy lasted an average of 7.5 sessions (range, 1-24 sessions), while the average follow-up duration was 7.75 weeks (range, 1-16 weeks). Music therapy significantly reduced anxiety compared to the control group at post-intervention (SMD = -0.36, 95% CI: -0.54 to -0.17, p < 0.05), but not at follow-up (SMD = -0.23, 95% CI: -0.53 to 0.08, p >0.05). Subgroup analysis found a significantly positive effect of music therapy on anxiety in < 60 and ≥ 60 age-group (SMD = -0.31, 95% CI: -0.52 to -0.09, p < 0.05; SMD = -0.45, 95% CI: -0.85 to -0. 05, p < 0.05), developed and developing country group (SMD = -0.28, 95% CI: -0.51 to -0.06, p < 0.05; SMD = -0.49, 95% CI: -0.80 to -0.17, p < 0.05), < 12 and ≥ 12 sessions group (SMD = -0.24, 95% CI: = -0.44 to -0.03, p < 0.05; SMD = -0.59, 95% CI: -0.95 to -0.22, p < 0.05), respectively. Our study indicated that music therapy can significantly improve anxiety during treatment. But given that only eight RCTs reported the effects of music therapy at follow-up and the duration of follow-up was inconsistent, further researches are needed on the lasting effects after the intervention is discontinued.

Overcoming barriers in cognitive-behavioral therapy for youth anxiety and obsessive-compulsive disorder: Addressing parent behaviors

Exposure-based cognitive-behavioral therapy (CBT) is a well-established treatment for anxiety disorders and obsessive-compulsive disorder (OCD) in youth. Although a majority of youth respond to CBT, a substantial portion remain symptomatic and/or experience a return of symptoms after completing a course of treatment. This highlights the need for further improvements to this evidence-based treatment. Given that parent behaviors can negatively influence treatment, addressing parental behaviors in CBT serves as a novel and promising treatment target to improve youth's therapeutic outcomes. The authors review three common parent behaviors that influence anxiety and treatment outcomes: family accommodation, parent anxious behaviors, and management of disruptive behaviors. The authors then discuss each behavior, its effect on anxiety/OCD and treatment, and how to address the behavior within the context of CBT. In doing so, therapeutic learning can be optimized to improve CBT outcomes for youth with anxiety disorders and/or OCD.

The p Factor Consistently Predicts Long-Term Psychiatric and Functional Outcomes in Anxiety-Disordered Youth

OBJECTIVE

Pediatric anxiety disorders can have a chronic course and are considered gateway disorders to adult psychopathology, but no consistent predictors of long-term outcome have been identified. A single latent symptom dimension that reflects features shared by all mental health disorders, the p factor, is thought to reflect mechanisms that cut across mental disorders. Whether p predicts outcome in youth with psychiatric disorders has not been examined. We tested whether the p factor predicted long-term psychiatric and functional outcomes in a large, naturalistically followed-up cohort of anxiety-disordered youth.

METHOD

Children and adolescents enrolled in a randomized controlled treatment trial of pediatric anxiety were followed-up on average 6 years posttreatment and then annually for 4 years. Structural equation modeling was used to estimate p at baseline. Both p and previously established predictors were modeled as predictors of long-term outcome.

RESULTS

Higher levels of p at baseline were related to more mental health disorders, poorer functioning, and greater impairment across all measures at all follow-up time points. p Predicted outcome above and beyond previously identified predictors, including diagnostic comorbidity at baseline. Post hoc analyses showed that p predicted long-term anxiety outcome, but not acute treatment outcome, suggesting that p may be uniquely associated with long-term outcome.

CONCLUSION

Children and adolescents with anxiety disorders who present with a liability toward broad mental health problems may be at a higher risk for poor long-term outcome across mental health and functional domains. Efforts to assess and to address this broad liability may enhance long-term outcome.

Family Intervention for Child and Adolescent Anxiety: A Meta-analytic Review of Therapy Targets, Techniques, and Outcomes

Parent- and family-level correlates of youth anxiety are well-documented, and they highlight potential targets for family-focused intervention. Although family-based approaches for treating youth anxiety generally are considered efficacious for achieving symptom reduction, they vary in format and approach and it remains unclear whether they offer an advantage over individual child treatment. To better understand the current state of the evidence, we used meta-analytic methods to examine the therapeutic approaches described in existing family interventions for child and adolescent anxiety, whether they mapped to the major mechanisms proposed in the literature, and the timeline along which relevant parent/family variables were measured. We examined how these mechanism-focused family interventions performed in RCTs relative to individual child CBT and whether they shifted symptoms and relevant parenting behaviors. A total of 11 randomized controlled trials (RCTs) compared individual cognitive behavior therapy (CBT) to CBT+ a family component (CBT + FAM) and included a youth anxiety measure at pre- and post-treatment; only half of these (n=6) also included a parent/family functioning measure at both pre- and post-treatment (across both primary and secondary outcome papers). Only a single study included anxiety measures at a mid-treatment time point, and none included parent measures at a mid-treatment time point. Findings are discussed in terms of design considerations and advancing the field of family intervention for youth anxiety.

Exposure-Focused CBT Outperforms Relaxation-Based Control in an RCT of Treatment for Child and Adolescent Anxiety

Objective: The relative contribution of individual cognitive behavioral therapy (CBT) components to treatment outcomes for child anxiety disorders (CADs) is unclear. Recent meta-analyses suggest that exposure may be the primary active ingredient in CBT for CADs, and that relaxation may be relatively less effective. This brief report tests the hypothesis that exposure-focused CBT (EF-CBT) would outperform a relaxation-based active therapy control (Relaxation Mentorship Training; RMT) for the treatment of CADs.Method: Participants were 102 youth with CADs (mean age = 11.91, 26 males; 76.4% White, 14.7% Multiracial, 3.9% Black, 3.9% Asian, 0.9% other/do not wish to identify) as part of an ongoing neuroimaging randomized controlled trial. Participants were randomly assigned (ratio 2:1) to receive 12 sessions of EF-CBT (n = 70) or RMT (n = 32). Clinical improvement was measured at Week 12 (Clinical Global Impression - Improvement scale; CGI-I); treatment response was defined as receiving a rating of "very much" or "much improved" on the CGI-I. Anxiety severity was measured at Weeks 1, 6, 9, 12 (Pediatric Anxiety Rating Scale; PARS). Outcome measures were completed by an independent evaluator unaware of condition.Results: EF-CBT exhibited 2.98 times higher odds of treatment completion than RMT; 13 treatment non-completers were included in analyses. Estimated treatment response rates were higher for EF-CBT (57.3%) than for RMT (19.2%). Longitudinal analyses indicated that EF-CBT was associated with faster and more pronounced anxiety reductions than RMT on the PARS (Hedges' g = .77).Conclusions: Results suggest that EF-CBT without relaxation is effective for CADs, and more effective than a relaxation-based intervention.

Editorial: The Vanishing Value of Evidence-based Treatments: Is Our Mental Health Expertise Irrelevant?

The article in this issue of JAACAP by the CAMELS (Child/Adolescent Anxiety Multimodal Extended Long-term Study) study team, Peris et al.¹, offers 2 very important contributions. Conveniently, the first contribution is also the stated purpose of this report: to present findings detailing the extent to which children and adolescents who previously participated (averaging 6.5 years previously) in the landmark Child and Adolescent Multimodal Study of Anxiety (CAMS) multisite randomized controlled trial (RCT)² did or did not receive follow-up services. This is not a good-news story. By and large, over the 6-year follow-up, only 35% of the previous RCT-treated children and youth received "consistent" continuing services, either through medication or cognitive-behavioral therapy (CBT), despite ongoing issues of anxiety and significant impairment.

Attention Alterations in Pediatric Anxiety: Evidence From Behavior and Neuroimaging

BACKGROUND

Pediatric anxiety disorders involve greater capture of attention by threatening stimuli. However, it is not known if disturbances extend to nonthreatening stimuli, as part of a pervasive disturbance in attention-related brain systems. We hypothesized that pediatric anxiety involves greater capture of attention by salient, nonemotional stimuli, coupled with greater activity in the portion of the inferior frontal gyrus (IFG) specific to the ventral attention network (VAN).

METHODS

A sample of children (n = 129, 75 girls, mean 10.6 years of age), approximately half of whom met criteria for a current anxiety disorder, completed a task measuring involuntary capture of attention by nonemotional (square boxes) and emotional (angry and neutral faces) stimuli. A subset (n = 61) completed a task variant during functional magnetic resonance imaging. A priori analyses examined activity in functional brain areas within the right IFG, supplemented by a whole-brain, exploratory analysis.

RESULTS

Higher clinician-rated anxiety was associated with greater capture of attention by nonemotional, salient stimuli (F1,125 = 4.94, p = .028) and greater activity in the portion of the IFG specific to the VAN (F1,57 = 10.311, p = .002). Whole-brain analyses confirmed that the effect of anxiety during capture of attention was most pronounced in the VAN portion of the IFG, along with additional areas of the VAN and the default mode network.

CONCLUSIONS

The pathophysiology of pediatric anxiety appears to involve greater capture of attention to salient stimuli, as well as greater activity in attention-related brain networks. These results provide novel behavioral and brain-based targets for treatment of pediatric anxiety disorders.

Long-term Service Use Among Youths Previously Treated for Anxiety Disorder

OBJECTIVE

(1) To describe rates of long-term service use among subjects previously enrolled in a landmark study of youth anxiety disorder treatment and followed into early adulthood; (2) to examine predictors of long-term service use; and (3) to examine the relationship between anxiety diagnosis and service use over time.

METHOD

The Child/Adolescent Anxiety Multimodal Extended Long-term Study prospectively assessed youths treated through the Child/Adolescent Anxiety Multimodal Study at ages 7-17 years into early adulthood. A total of 319 youths (mean age 17.7, 55.2% female) previously randomized to cognitive-behavioral therapy, sertraline, combination, or placebo for the treatment of anxiety participated; 318 had service use data. Four annual clinic assessments were conducted along with telephone check-ins every 6 months.

RESULTS

Overall, 65.1% of participants endorsed receiving some form of anxiety treatment over the course of the follow-up period, with more subjects reporting medication use than psychotherapy; 35.2% reported consistent use of services over the course of the study. Overall, service use declined over time in subjects with less severe anxiety but remained more steady in those with recurrent/chronic symptoms. Levels of life stress and depressive symptoms were associated with amount of service use over time whereas treatment-related variables (type of initial intervention, acute response, remission) were not. A subset of youths remained chronically anxious despite consistent service use.

CONCLUSION

These findings point to the need to develop models of care that approach anxiety disorders as chronic health conditions in need of active long-term management.

Emerging Domain-Based Treatments for Pediatric Anxiety Disorders

Domain-specific cognitive training treatments for pediatric anxiety disorders rely on accurate and reliable identification of specific underlying deficits and biases in neurocognitive functions. Once identified, such biases can serve as specific targets for therapeutic intervention. Clinical translations typically reflect mechanized training protocols designed to rectify the identified biases. Here, we review and synthesize research on key neurocognitive processes that emerge as potential targets for specialized cognitive training interventions in pediatric anxiety disorders in the domains of attention, interpretation, error monitoring, working memory, and fear learning. For each domain, we describe the current status of target establishment (i.e., an association between pediatric anxiety and a specific neurocognitive process), and then review extant translational efforts regarding these targets and the evidence supporting their clinical utility in youths. We then localize each of the domains within the path leading to efficacious, evidence-supported treatments for pediatric anxiety, providing a roadmap for future research. The review indicates that specific cognitive targets in pediatric anxiety have been established in all the reviewed domains except for fear learning, where a clear target is yet to be elucidated. In contrast, evidence for clinical efficacy emerged only in the threat-related attention domain, with some preliminary findings in the domains of interpretation and working memory. The path to clinical translation in the domain of error monitoring is yet unclear. Implications and potential avenues for future research and translation are discussed.

Comparing the effectiveness of the unified protocol in combination with an additional mindfulness treatment to the unified protocol alone as treatment for adolescents diagnosed with emotional disorders

Objective

Many adolescents suffer from depressive and anxiety disorders simultaneously and current treatment methods do not put enough emphasis on comorbidity of these disorders. The unified protocol for treating emotional disorders in adolescents is a transdiagnostic therapy which targets mutual fundamental factors. Therefore, the current study aims to compare the effectiveness of the unified protocol alone with the unified protocol combined with mindfulness as an additional treatment in adolescents suffering from emotional disorders.

Method

A quasi-experimental study was conducted with adolescents. The participants had been diagnosed with emotional disorders and were divided into a control group (15 participants) and an experimental group (16 participants). Both groups were offered 14 sessions of therapy. They were assessed at pre-test, post-test, and two-month follow-up. Scales used in the study included the Child Behavior Checklist (CBCL), the Children’s Depression Inventory (CDI), and the Youth Anxiety Measure for DSM-5 (YAM-5).

Results

The results showed that both of the treatment methods effectively reduced adolescents’ emotional problems, but improvements were more significant in the group administered the additional mindfulness program. Among the variables assessed, non-phobic anxiety disorders and depression improved more than specific phobia and behavioral problems. Between-subjects (Group) partial etas for non-phobic anxiety, depression, specific phobia, and behavioral problems were 0.67, 0.50, 0.23, and 0.16, respectively.

Conclusion

According to the findings of this study, additional treatment methods such as mindfulness could increase the effectiveness of the unified transdiagnostic protocol for adolescents (UP-A). The therapeutic implications are discussed.

The Impact of Treatment Expectations on Exposure Process and Treatment Outcome in Childhood Anxiety Disorders

This study examined the relationship between caregivers' and youths' treatment expectations and characteristics of exposure tasks (quantity, mastery, compliance) in cognitive-behavioral therapy (CBT) for childhood anxiety. Additionally, compliance with exposure tasks was tested as a mediator of the relationship between treatment expectations and symptom improvement. Data were from youth (N = 279; 7-17 years old) enrolled in the Child/Adolescent Anxiety Multimodal Study (CAMS) and randomized to cognitive-behavioral therapy (CBT) or the combination of CBT and sertraline for the treatment of separation anxiety disorder, generalized anxiety disorder, and social phobia. Caregivers and youth independently reported treatment expectations prior to randomization, anxiety was assessed pre- and post-treatment by independent evaluators blind to treatment condition, and exposure characteristics were recorded by the cognitive-behavioral therapists following each session. For both caregivers and youths, more positive expectations that anxiety would improve with treatment were associated with greater compliance with exposure tasks, and compliance mediated the relationship between treatment expectations and change in anxiety symptoms following treatment. Additionally, more positive parent treatment expectations were related to a greater number and percentage of sessions with exposure. More positive youth treatment expectations were associated with greater mastery during sessions focused on exposure. Findings underscore the importance of addressing parents' and youths' treatment expectations at the outset of therapy to facilitate engagement in exposure and maximize therapeutic gains.

The use of acceptance and commitment therapy (ACT) in addressing family accommodation (FA) for child anxiety

Many parents of children with anxiety tend to engage in varying levels of family accommodation (FA) in order to alleviate anxiety symptoms. This can exacerbate anxiety symptoms and have adverse effects for psychological treatments. A small number of general and specific interventions have been developed for FA but treatment research is at a nascent stage. Acceptance and commitment therapy (ACT) may be an effective treatment for FA. This article reviews the potential advantages and uses of ACT and how ACT’s six core processes can help target particular features of FA. The theoretical support for ACT is reviewed relevant to FA. The article concludes by conjecturing how ACT may be a useful and adaptive treatment in targeting FA.

Key learning aims

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