An interventional study of Cognitive Bias Modification for Interpretations (CBM-I) and Interpretation Control Condition (ICC) in Anxiety Disorders, sponsored by University of Denver. Completed at 1 site in United States. Open to participants aged 10 Years to 17 Years. Per ClinicalTrials.gov, last updated 2025-03-05.
Sponsored by University of Denver · Not applicable, Interventional, and Treatment
Anxiety is the most common mental health problem in children and adolescents. This two-phased study will test the effects of an experimental computerized intervention aimed at reducing threat-based thinking (i.e., interpretation bias) in anxious youth. Participants in both the R61 (N=46) and R33 (N=72) trials will be youth ages 10 to 17 with a primary anxiety disorder (Separation, Social, Generalized). In the R61 trial, youth will be randomly assigned to receive 16 sessions over 4 weeks of either a personalized cognitive bias modification program for interpretation bias (CBM-I) or a computerized control condition (ICC). If CBM-I reduces interpretation bias significantly more than the ICC, the R33 trial will commence. In the R33, youth will be randomly assigned to either CBM-I or an equal amount of time in a cognitive restructuring intervention, which also aims to reduce threat-based thinking in anxiety. Please note that only the R61 phase of the trial has been completed and currently this record summary only reflects the R61 phase.
Anxiety is the most common mental health problem in youth, affecting one in four children and adolescents. Unfortunately, evidence-based treatments (pharmacotherapy, cognitive-behavioral therapy) are costly, not widely available, and ineffective for a substantial proportion of youth. In response, experts have called for novel treatments that directly target mechanisms underlying youth anxiety while simultaneously addressing barriers to care (i.e., cost, accessibility). One such promising mechanism is interpretation bias - the inaccurate interpretation of threat from ambiguity. The investigators have previously demonstrated that interpretation bias occurs in over 90% of anxious youth, is predictive of anxiety severity in clinical samples of youth, and differentiates between anxious and non-anxious youth. These data indicate that interpretation bias may be a ubiquitous phenomenon underlying anxiety expression in children and adolescents and therefore may be an ideal intervention target. Cognitive bias modification for interpretation bias (CBM-I) is a computerized intervention that attempts to reduce anxiety by directly modifying interpretation bias. CBM-I has demonstrated preliminary efficacy for reducing anxiety symptoms in adults. Yet extant CBM-I data in anxious youth are sparse, with little work addressing whether CBM-I significantly reduces interpretation bias, and whether this in turn reduces anxiety symptoms, as well as the dose necessary to reduce both bias and anxiety. This two-phased study tests personalized CBM-I in youth ages 10 to 17 who meet diagnostic criteria for a primary anxiety disorder (Separation, Social, Generalized). In the R61 Phase (N=46), a randomized clinical trial (RCT) examines whether CBM-I personalized to youth anxiety symptoms significantly reduces interpretation bias compared to a computerized interpretation control condition (ICC). The interpretation target will be measured at multiple time points (4, 8, 12, 16 sessions) to identify the optimal dose for reduction in interpretation bias. If the R61 trial results indicate that CBM-I outperforms ICC on interpretation bias reduction, the R33 phase will commence. In the R33 Phase, an RCT (N=72) will validate whether CBM-I significantly reduces interpretation bias, and conducts a mechanism test (i.e., does bias reduction precede and predict anxiety reduction?), by comparing CBM-I to cognitive restructuring, a clinically relevant psychosocial intervention that also targets anxious cognition. Please note that only the R61 phase of the trial has been completed and currently this record summary only reflects the R61 phase. If the R33 phase is funded, it will be registered as a separate NCT.
7,201 studies on the registry are indexed under Anxiety Disorders; 1,682 are open to participants now.
This study's enrollment of 50 is below the median of 80 across 6,057 interventional studies indexed under Anxiety Disorders.
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Exclusion Criteria:
Computerized 16-session intervention aimed at reducing interpretation bias. In this study, CBM-I is personalized to youth anxiety symptoms. During CBM-I sessions, youth indicate whether word-sentence pairs are related, and are provided with feedback aimed to reduce bias.
Other: Cognitive Bias Modification for Interpretations (CBM-I)
Computerized 16-session intervention that is not believed to significantly modify bias. In this study, youth see stimuli personalized to their anxiety symptoms. During ICC sessions, youth see word-sentence pairs and are required to indicate whether word and sentence are related, but are not provided with feedback that aims to "train" a reduction in interpretation bias.
Other: Interpretation Control Condition (ICC)
Computerized intervention in which youth see word-sentence pairs personalized to their anxiety symptoms, and indicate whether these are related. Youth receive feedback aimed to reduce interpretation bias.
Also known as: Interpretation bias modification, Interpretation training
Computerized control condition in which youth see word-sentence pairs personalized to their anxiety symptoms. Youth indicate whether these are related, but are not provided with feedback that aims to "train" a reduction in interpretation bias.
Change in Linguistic Interpretation Bias as Assessed by the Word-sentence Association Paradigm for Youth (WSAP-Y)
The WSAP-Y is a computerized assessment of interpretation bias in which youth indicate whether word-sentence pairings are related. This measure provides information about the degree to which youth evidence interpretation bias, as well as a behavioral (reaction time) index for bias endorsement. For the primary outcome of percent threat interpretations endorsed, the possible range is 0 (zero) to 100%. Higher percentage indicates more threat interpretation bias (i.e., the youth endorsed a higher proportion of threat words as related to amiguous sentences); lower scores indicate lower threat interpretation bias. Greater decrease in the percent of threat interpretations endorsed and lower absolute scores indicate "better" outcome (i.e., more reduction in threat interpretation bias; less interpretation bias overall).
Time frame: 6 weeks; post-intervention time point
Change in Visual Interpretation Bias as Assessed by the Ambiguous Faces Task
Youth view faces portraying neutral expressions or subtle emotional expressions (i.e., morphed faces ranging in intensity of emotional valence). Youth categorization of faces as neutral or threatening provides their sensitivity and bias for reporting presence of threat. The criterion mean value in outcomes below reflects a score from -1 to 1, with higher negative numbers reflecting greater bias toward angry faces, and higher positive values approaching one reflecting a bias toward happy faces. Theoretically, higher positive values indicate "better" outcome such that youth have more positive bias toward facial stimuli. H
Time frame: 6 weeks; post-intervention time point
Change in Self-reported Interpretation Bias as Measured by the Children's Automatic Thoughts Scale (CATS)
The Children's Automatic Thoughts Scale is a youth self-report questionnaire which assesses presence and frequency of a variety of anxious thoughts from domains of: physical threat, social threat, personal failure, and anxious hostility. Total scores range from 0 to 160, with higher scores indicating more threat interpretation bias. Higher scores indicate "worse" outcome, or that youth self-report that they have more threatening thoughts and/or threatening thoughts at higher frequency; lower scores indicate "better" outcome or that youth self-report fewer threatening thoughts and/or threatening thoughts at lower frequency.
Time frame: 6 weeks; post-intervention time point
Number of Trainings Completed of 16 Intended Sessions
This outcome is related to the "feasibility of CBM-I" aim. The number of CBM-I/ICC trainings completed of 16 intended sessions. Theoretically, completion of more training sessions is better and indicates that youth received a higher "dose" of training.
Time frame: 6 weeks; post-intervention time point
Participant/Parent Acceptability Questionnaire (PAQ)
The Participant Acceptability Questionnaire is a 10-item youth and parent report questionnaire, accompanied by an exit interview, that assesses burden (travel, boredom), credibility of computerized intervention techniques, and youth comprehension of the intervention. Parents and youth completed the PAQ separately.
Time frame: 6 weeks
| Milestone | Cognitive Bias Modification for Interpretations (CBM-I) | Interpretation Control Condition (ICC) |
|---|---|---|
| Started | 25 | 25 |
| Completed | 23 | 24 |
| Not completed | 2 | 1 |
| Withdrew: Adverse event | 2 | 0 |
| Withdrew: Ineligible participant unknowingly enrolled | 0 | 1 |
The WSAP-Y is a computerized assessment of interpretation bias in which youth indicate whether word-sentence pairings are related. This measure provides information about the degree to which youth evidence interpretation bias, as well as a behavioral (reaction time) index for bias endorsement. For the primary outcome of percent threat interpretations endorsed, the possible range is 0 (zero) to 100%. Higher percentage indicates more threat interpretation bias (i.e., the youth endorsed a higher proportion of threat words as related to amiguous sentences); lower scores indicate lower threat interpretation bias. Greater decrease in the percent of threat interpretations endorsed and lower absolute scores indicate "better" outcome (i.e., more reduction in threat interpretation bias; less interpretation bias overall).
| score on a scale | Cognitive Bias Modification for Interpretations (CBM-I) | Interpretation Control Condition (ICC) |
|---|---|---|
| Change in Linguistic Interpretation Bias as Assessed by the Word-sentence Association Paradigm for Youth (WSAP-Y) | 19.77 ± 19.48 | 47.40 ± 13.52 |
Youth view faces portraying neutral expressions or subtle emotional expressions (i.e., morphed faces ranging in intensity of emotional valence). Youth categorization of faces as neutral or threatening provides their sensitivity and bias for reporting presence of threat. The criterion mean value in outcomes below reflects a score from -1 to 1, with higher negative numbers reflecting greater bias toward angry faces, and higher positive values approaching one reflecting a bias toward happy faces. Theoretically, higher positive values indicate "better" outcome such that youth have more positive bias toward facial stimuli. H
| score on a scale | Cognitive Bias Modification for Interpretations (CBM-I) | Interpretation Control Condition (ICC) |
|---|---|---|
| Change in Visual Interpretation Bias as Assessed by the Ambiguous Faces Task | 0.86 ± 0.87 | 1.32 ± 0.54 |
The Children's Automatic Thoughts Scale is a youth self-report questionnaire which assesses presence and frequency of a variety of anxious thoughts from domains of: physical threat, social threat, personal failure, and anxious hostility. Total scores range from 0 to 160, with higher scores indicating more threat interpretation bias. Higher scores indicate "worse" outcome, or that youth self-report that they have more threatening thoughts and/or threatening thoughts at higher frequency; lower scores indicate "better" outcome or that youth self-report fewer threatening thoughts and/or threatening thoughts at lower frequency.
| score on a scale | Cognitive Bias Modification for Interpretations (CBM-I) | Interpretation Control Condition (ICC) |
|---|---|---|
| Change in Self-reported Interpretation Bias as Measured by the Children's Automatic Thoughts Scale (CATS) | 6.52 ± 10.22 | 19.00 ± 16.47 |
This outcome is related to the "feasibility of CBM-I" aim. The number of CBM-I/ICC trainings completed of 16 intended sessions. Theoretically, completion of more training sessions is better and indicates that youth received a higher "dose" of training.
| number of 16 trainings completed | Cognitive Bias Modification for Interpretations (CBM-I) | Interpretation Control Condition (ICC) |
|---|---|---|
| Number of Trainings Completed of 16 Intended Sessions | 16 ± 0 | 15.83 ± 0.82 |
The Participant Acceptability Questionnaire is a 10-item youth and parent report questionnaire, accompanied by an exit interview, that assesses burden (travel, boredom), credibility of computerized intervention techniques, and youth comprehension of the intervention. Parents and youth completed the PAQ separately.
| score on a scale | Cognitive Bias Modification for Interpretations (CBM-I) | Interpretation Control Condition (ICC) |
|---|---|---|
| Parent PAQ | 47.25 ± 5.17 | 42.91 ± 4.03 |
| Youth PAQ | 38.61 ± 8.03 | 33.87 ± 8.41 |
Collected over Adverse event data were collected from study visit 2 (post-randomization and post-eligibility determination at Visit 1), and weekly through week 6 of study participation.. Non-serious events are listed at a 0% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Cognitive Bias Modification for Interpretations (CBM-I) | 0/25 (0%) | 0/25 (0%) | 5/25 (20%) |
| Interpretation Control Condition (ICC) | 0/25 (0%) | 0/25 (0%) | 4/25 (16%) |
| Event | Cognitive Bias Modification for Interpretations (CBM-I) | Interpretation Control Condition (ICC) |
|---|---|---|
| COVID, cold, flu, other illnessGeneral disorders | 5/25 | 4/25 |
| Age, Continuous(years) | Cognitive Bias Modification for Interpretations (CBM-I) | Interpretation Control Condition (ICC) | Total |
|---|---|---|---|
| Mean | 12.76 ± 1.64 | 12.20 ± 1.80 | 12.48 ± 1.73 |
| Sex/Gender, Customized(Participants) | Cognitive Bias Modification for Interpretations (CBM-I) | Interpretation Control Condition (ICC) | Total |
|---|---|---|---|
| Youth self-identified gender — Female | 15 | 15 | 30 |
| Youth self-identified gender — Male | 9 | 8 | 17 |
| Youth self-identified gender — Non-binary | 1 | 2 | 3 |
| Ethnicity (NIH/OMB)(Participants) | Cognitive Bias Modification for Interpretations (CBM-I) | Interpretation Control Condition (ICC) | Total |
|---|---|---|---|
| Hispanic or Latino | 2 | 5 | 7 |
| Not Hispanic or Latino | 23 | 20 | 43 |
| Unknown or Not Reported | 0 | 0 | 0 |
| Race (NIH/OMB)(Participants) | Cognitive Bias Modification for Interpretations (CBM-I) | Interpretation Control Condition (ICC) | Total |
|---|---|---|---|
| American Indian or Alaska Native | 0 | 0 | 0 |
| Asian | 0 | 2 | 2 |
| Native Hawaiian or Other Pacific Islander | 0 | 0 | 0 |
| Black or African American | 2 | 1 | 3 |
| White | 23 | 19 | 42 |
| More than one race | 0 | 3 | 3 |
| Unknown or Not Reported | 0 | 0 | 0 |
| Region of Enrollment(participants) | Cognitive Bias Modification for Interpretations (CBM-I) | Interpretation Control Condition (ICC) | Total |
|---|---|---|---|
| United States | 25 | 25 | 50 |
PDFs hosted by the registry, ClinicalTrials.gov.
Plan to share: Yes — Data resulting from this project will be de-identified and uploaded in a timely manner to the National Database for Clinical Trials Related to Mental Illness, including de-identified youth demographic and clinical characteristics, and summary scores from outcome measures, along with a data dictionary that provides variable definitions, value labels, and scoring of measures. The study protocol and dataset may be made available to other investigators based on successful completion of a data request form, following the conclusion of this study and publication of primary outcome papers.
Supporting information: Study protocol, Statistical analysis plan, Informed consent form
Time frame: Data will become available following conclusion of the study and publication of primary outcome papers.
Access criteria: Researchers will be required to complete a request form that includes: research identifying information and institutional affiliation, description of research objectives, and IRB approval. Completed request forms will be reviewed by the PI and Co-Is to ensure that the research request will not duplicate work being conducted by the study team. The requesting researcher must provide signed data sharing agreements from all users on their team outlining the details of how information will be kept secure, consistent with NIMH and University of Denver data sharing guidelines. Requesting researchers will also provide the University of Denver's IRB with an IRB approval from their institution. The data will only be released after the proposed study has been completed and primary outcomes have been accepted for publication.
Data sharing details ↗ · nda.nih.gov
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