Specific Phobia

The purposes of this study are: (1) to identify baseline predictors of relative success in cognitive, behavioral, and mindfulness-based treatments for anxiety, (2) explore who benefits from a brief, video-based skill training compared to receiving 4 sessions of therapy, and (3) to evaluate how durable these effects are over 1 year.

This clinical trial evaluates whether an optimized exposure-based treatment improves long-term outcomes for adults with anxiety disorders. Specifically, it examines whether Expectancy Focused Exposure (EFE), based on the inhibitory learning model, is more effective than Anxiety Focused Exposure (AFE) in reducing anxiety symptoms and preventing the return of fear over time. The study includes adults aged 18 years and older diagnosed with an anxiety disorder, including social anxiety disorder, specific phobia, generalized anxiety disorder, and panic disorder with or without agoraphobia. Anxiety disorders are highly prevalent and can significantly interfere with daily functioning, work performance, and interpersonal relationships. Exposure therapy is a central component of cognitive behavioral treatment for anxiety disorders. Traditional exposure approaches often focus on reducing anxiety during exposure sessions, but many individuals experience a return of fear after treatment. New theoretical models suggest that exposure may be more effective when designed to violate threat expectations and strengthen inhibitory learning. Participants will be recruited in sequential cohorts and randomly assigned to immediate treatment or a brief waitlist before treatment begins. Those assigned to the waitlist will start treatment at the next study step. When treatment begins, participants will receive either EFE or AFE. Both treatments consist of approximately 10 weekly individual psychotherapy sessions delivered by trained therapists. Participants will complete clinical assessments before treatment, during treatment, immediately after treatment, and at 6, 12, and 18 months after treatment completion. In AFE, exposure exercises are organized along an anxiety hierarchy and focus on reducing anxiety responses through repeated confrontation with feared stimuli. In EFE, exposure focuses on identifying and testing threat expectations, and exercises are designed to maximize expectancy violation and strengthen inhibitory learning. Potential risks include temporary emotional discomfort during exposure exercises. All sessions will be conducted by trained clinicians who monitor participant safety throughout the study. The results may help improve exposure-based treatments for anxiety disorders by identifying strategies that enhance long-term outcomes and reduce relapse.

Childhood anxiety disorders (CAD) are common and impairing. Family based cognitive behavioral therapy (CBT) is efficacious in treating CAD. Yet, many children do not receive care due to barriers such as limited provider availably, high treatment costs, and constrained family resources (e.g., time). To combat these barriers, other treatment methods have been developed. The stepped care treatment models maximize resources by providing low-intensity, low-cost interventions as a first time treatment, while stepping up care for those needing more intensive treatment. Specifically, a stepped care model for CAD that begins with a parent-focus intervention has great promise to deliver efficacious and cost-effective treatment without having to engage the child. While stepped care approaches show promise in treating CAD with comparable efficacy to standard CBT, there remains a large research-to-practice gap. The stepped care model for CAD that begins with a parent-focused intervention has yet been explored, and very little is known about intervention mediators that explain mechanisms of change. This research is being done to improve the reach and quality of services using a stepped care model, offering an affordable and practical solution to the widespread gap in youth mental health care.

The goal of this clinical trial is to compare stepped care to stratified care as overall healthcare models for children and adolescents aged 8-17 with anxiety disorders. It addresses one main question: • Is stepped care non-inferior to stratified care in supporting participants to achieve a treatment response? Researchers will compare two care models: * Stepped care, where all participants begin with 14 weeks of internet-delivered cognitive behavioral therapy (ICBT) and receive an additional 14 weeks of personalized in-person CBT if needed. * Stratified care, where participants are assigned to either 14 weeks of ICBT or 14 weeks of in-person CBT based on clinical complexity, and may also receive additional 14 weeks of in-person CBT if necessary. Participants will: * Be randomly assigned to one of the two care models. * Complete a wide range of assessments at baseline, during treatment, and at 4, 8, 12, and 24 months, with the 8-month point as the primary endpoint. * Receive either ICBT, in-person CBT, or both, depending on their care model and response to treatment. * Participate in ancillary studies involving DNA sampling, cognitive testing, and national registry linkages to help predict treatment response and long-term outcomes.

The goal of this study is to develop a new internet-delivered cognitive behavioral therapy (ICBT) intervention for youths with anxiety disorders based on the best current knowledge about effective cognitive behavioral therapy for the target group, refine the intervention in collaboration with patient and public representatives, and conduct a preliminary evaluation of the treatment effects in an open clinical trial. The primary objective of the study is: 1\. To evaluate the preliminary efficacy of a newly developed ICBT intervention for children and adolescents with anxiety disorders in reducing anxiety severity, as measured by the Pediatric Anxiety Rating Scale (PARS). Secondary objectives of the study are: 1. To examine the preliminary efficacy (PARS) of the ICBT intervention at 3 months post-treatment. 2. To examine how youths with anxiety disorders, their caregivers, therapists, and healthcare leadership experience the ICBT intervention. 3. To examine factors (e.g., age, type of anxiety disorder, presence of depressive symptoms, experiences of ICBT) that predict treatment outcome. 4. To examine how the ICBT intervention can be improved (e.g., treatment content and technical delivery) for future use. Participants will: * Undergo ICBT treatment for anxiety disorders during 12 weeks * Complete questionnaires at multiple time points throughout the study * Participate in follow-ups post-treatment and 3 months post-treatment * A selection of participants will also be invited to focus group interviews with the aim to generate ideas on how the intervention may be improved for future use

The aim of this study is to develop and test the efficacy of first-of-its-kind, fully instrumented sensor-based smartphone-guided in-vivo exposure therapy using a just-in-time intervention for anxiety disorder. The main hypotheses are: 1. Both treatment conditions (CBT treatment with IVE and CBT treatment with IVE+SYMPTOMS-JIT) will show efficacy and no statistically significant differences will be found between them. The efficacy will be determined for the differences in pre-post treatment in the used outcome measures. 2. The therapeutic gains obtained in both treatment conditions (IVE and (IVE+SYMPTOMS-JIT) will be maintained at 1-, 6-, and 12-month follow-up periods. 3. Both treatment conditions will be efficient, that is, they will be well-valued by patients and therapists. However, IVE+SYMPTOMS-JIT will be preferred and perceived as less aversive than IVE. 4. The main barriers for the use of this technology are not technological, but rather attitudinal and they can be identified through qualitative studies.

The main aim of this study is to validate and test the clinical effectiveness of the projection-based augmented reality system in cockroach phobia exposure therapy through an RCT that includes three conditions: (i) projection-based augmented reality therapy, (ii) usual treatment (in vivo exposure), (iii) waiting list control. In addition, it is intended to analyze the potential of the eye-tracking technology as a tool for evaluating the clinical effectiveness in cockroach phobia treatment.

The purpose of this study is to evaluate the feasibility of an evidence-based system to recommend core interventions, before the beginning of treatment, to psychotherapists treating low-income patients with depressive or anxiety disorders.