Internet-Delivered Psychological Treatments for Chronic Pain in Adolescents: ACT and Pain Education.

NCT06981312 | Recruiting

• 2 other identifiers: K 2025-30962024-01359
• Study Type: interventional
• Target: 150
• Locations: 1 country
• Sites: 1

Brief Summary

One in four children in Sweden experiences chronic pain. For many, the pain is temporary, but for about 5% it significantly affects daily life, leading to sleep problems, school absence, and reduced physical activity. Youth with chronic pain report lower life satisfaction and overall health compared to their peers. In most cases, there is no underlying disease or injury, suggesting that chronic pain is a condition in itself, driven by dysregulation in the pain system and influenced by biological, psychological, and social factors. National guidelines in Sweden recommend cognitive behavioral therapy (CBT) and Acceptance and Commitment Therapy (ACT) for children and adolescents with chronic pain and substantial functional limitations. However, more high-quality randomized controlled trials (RCTs) are needed to strengthen the evidence base for these treatments. The investigators' clinic has developed and evaluated ACT-based treatments for pediatric chronic pain over the past two decades. The protocol has now been adapted into an internet-delivered version to increase accessibility. In a preliminary feasibility study, the investigators observed promising effects on pain interference, though some usability issues have since been addressed. The treatment is grounded in the fear-avoidance model, which explains how avoidance of pain-related activities can worsen disability over time. In ACT, such avoidance is seen as driven by unwanted thoughts, emotions, and bodily sensations. The aim of treatment is to help young people relate more flexibly to pain and fear and to move toward personally meaningful goals - a skill referred to as psychological flexibility. Exposure is a core component of ACT, encouraging patients to engage with avoided thoughts, feelings, and activities in order to reduce avoidance and improve functioning. In addition to treating the young person, the study also targets parental behaviors. Parents often respond to their child's pain by increasing protection and monitoring, which is natural but can sometimes contribute to further avoidance and reduced independence in the child. ACT-based parent support is designed to help caregivers support their child more effectively. In this randomized trial, internet-delivered ACT will be compared to two control conditions: (1) an active comparator involving online pain education, and (2) a passive control group on a wait list. The pain education intervention is based on Pain Science Education (PSE), which aims to shift how individuals understand their pain - from seeing it as a sign of injury to recognizing it as a false alarm in the nervous system. PSE has shown promising effects in adults, but research in youth is still limited, and no RCTs have yet been published. The study responds to the need for well-designed digital interventions that reach more young people, evaluate treatment components more clearly, and include comparison groups that also receive digital interventions. The goal of the study is to further improve treatment effects by (1) emphasizing exposure strategies to reduce avoidance, (2) expanding pain education to enhance treatment understanding, and (3) refining parent support to better help families manage chronic pain over the long term. The project aims to increase knowledge about the effects of psychological treatments - in this case delivered online - for adolescents with chronic pain. As previous studies have highlighted the promise of exposure-based strategies and digital accessibility, the study aims to evaluate the effect of a treatment that combines and optimizes both. The study also aims to better understand the specific impact of pain education as a stand-alone intervention, as this is a growing research field with limited studies in youth. Regarding the parent support component of ACT, the study will evaluate whether changes in parental behaviors related to their child's pain are associated with reduced parenting stress and improved functioning and quality of life in the adolescents. In addition to evaluating treatment outcomes, the study aims to explore the underlying processes that may contribute to the effects of ACT and pain education.

Conditions

Chronic Pain; Nociplastic Pain; Pain Management; Acceptance and Commitment Therapy; Cognitive Behavior Therapy

Keywords

Pain Science Education; Pain Education; Chronic Pain; Nociplastic Pain; Pain Management; Acceptance and Commitment Therapy; Cognitive Behavior Therapy; Adolescent; Parent-Child Relations; Psychological Flexibility; iCBT; Telemedicine

Outcome Measures

Primary Outcomes (1)

• Pain Interference Index

  Pain Interference Index (PII) is a 6-item self-report questionnaire that assesses the extent to which pain interferes with daily functioning in children and adolescents. Each item is rated on an 11-point scale from 0 to 10, where 0 indicates "no interference" and 10 indicates "complete interference." The total score is the mean of the six items, resulting in a score range from 0 (no interference from pain) to 10 (maximum interference). Higher scores indicate greater interference due to pain.

  Collected at baseline, periprocedural, and directly after completion of the treatment/control condition, as well as at follow-up 3 weeks, 6 months, and 12 months after the end of active treatment.

Secondary Outcomes (10)

• Psychological Inflexibility in Pain Scale-Avoidance (PIPS-A)

  Collected at baseline, periprocedural, and directly after completion of the treatment/control condition, as well as at follow-up 3 weeks, 6 months, and 12 months after the end of active treatment.

• KIDSCREEN-10

  Collected at baseline and directly after completion of the treatment/control condition, as well as at follow-up 3 weeks, 6 months, and 12 months after the end of active treatment.

• Revised-Childrens Anxiety and Depression Scale 25 (RCADS-25)

  Collected at baseline and directly after completion of the treatment/control condition, as well as at follow-up 3 weeks, 6 months, and 12 months after the end of active treatment.

• Fear of Pain Questionnaire - Child - Short Form (FOPQ-C-SF)

  Collected at baseline, periprocedural, and directly after completion of the treatment/control condition, as well as at follow-up 3 weeks, 6 months, and 12 months after the end of active treatment.

• Numeric Rating Scale (NRS) - Pain Intensity

  Collected at baseline, periprocedural, and directly after completion of the treatment/control condition, as well as at follow-up 3 weeks, 6 months, and 12 months after the end of active treatment.

Study Arms (3)

Exposure enhanced Acceptance and Commitment Therapy

EXPERIMENTAL

The treatment protocol to be evaluated focuses on reducing the perceived threat value of pain through pain education, breaking avoidance behaviors through exposure, and increasing the adolescent's psychological flexibility, which are assumed to lead to improvements in function and quality of life. The treatment lasts for nine weeks, during which participants, by accessing information and working with structured exercises, acquire the content of the treatment. The treatment is primarily text-based but also includes images, videos, and audio files. The treatment is provided through the an online platform. Communication with the therapist occurs at least once a week.

Behavioral: Acceptance and Commitment Therapy

Pain Science Education

ACTIVE COMPARATOR

This group undergoes the same pain education as the experimental group but with a more comprehensive educational material. The pain education is based on the PSE curriculum. Pain education is relevant as an active control condition, as it is recommended for all patients with at least moderate chronic pain symptoms according to the national care program.

Behavioral: Pain Science Education

Wait list control

NO INTERVENTION

Treatment as usual.

Interventions

Acceptance and Commitment Therapy BEHAVIORAL

Participants receive a 9-week internet-delivered intervention: 2 weeks of Pain Neuroscience Education (PNE) based on the PSE curriculum, followed by 7 weeks of Acceptance and Commitment Therapy (ACT) targeting psychological flexibility. In addition to value-oriented behavioral activation, the ACT content includes classical exposure. The treatment is mainly text-based, supported by multimedia content, and delivered on a secure digital platform. Communication with a clinician occurs at least weekly. Parents receive a parallel program based on PSE, ACT, and behavioral principles to support flexible and effective parenting.

Also known as: Pain education, Exposure therapy

Exposure enhanced Acceptance and Commitment Therapy

Pain Science Education BEHAVIORAL

Participants receive 9 weeks of internet-delivered Pain Science Education (PSE), based on the PSE curriculum but with more detailed content, including extended examples, reflection exercises, and behavioral experiments. The aim is to reduce the threat value of pain by promoting a reconceptualization of pain. Parents receive a parallel program with tailored content. The intervention is text-based with multimedia components and delivered via a secure platform. Clinician support is provided asynchronously at least once weekly.

Pain Science Education

Eligibility Criteria

• Age: 13 Years - 19 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• Adolescents aged 13-19 years with chronic pain (duration ≥ 3 months).
• Have undergone a medical examination regarding their pain condition.
• Are not using pain-relieving medication, or have been stable on such medication for at least 2 months, with no planned medication changes.
• Have not undergone ACT or CBT treatment in the past six months.
• Can read and write in Swedish without difficulty.
• Have access to a smartphone/computer with an internet connection and e-ID.
• Have at least one parent or guardian who is willing and able to participate in parallel parent support treatment.

You may not qualify if:

• Insufficient understanding of Swedish to complete study-related tasks.
• Adolescents currently undergoing ACT or CBT treatment.
• Adolescents who are using pain-relieving medication or have unstable medication regimes.
• Adolescents without access to a smartphone/computer or e-ID.

Sponsors & Collaborators

• Region Stockholm: lead
• Karolinska Institutet: collaborator
• Forskningsrådet för hälsa, arbetsliv och välfärd (FORTE): collaborator

Study Sites (1)

Karolinska University Hospital

Vallentuna, 18647, Sweden

RECRUITING

MeSH Terms

Conditions

Chronic Pain; Nociplastic Pain; Agnosia

Interventions

Acceptance and Commitment Therapy; Implosive Therapy

Condition Hierarchy (Ancestors)

Pain; Neurologic Manifestations; Signs and Symptoms; Pathological Conditions, Signs and Symptoms; Perceptual Disorders; Neurobehavioral Manifestations; Nervous System Diseases

Intervention Hierarchy (Ancestors)

Cognitive Behavioral Therapy; Behavior Therapy; Psychotherapy; Behavioral Disciplines and Activities; Desensitization, Psychologic

Central Study Contacts

Charlotte Gentili, Licensed Psychologist, PhD

CONTACT

+46760482895; charlotte.s.gentili@regionstockholm.se

Aleksi Bell

CONTACT

+46762362816; aleksi.bell@regionstockholm.se

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER GOV
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Study Record Dates

• First Submitted: May 2, 2025
• First Posted: May 20, 2025
• Study Start: May 1, 2025
• Primary Completion (Estimated): December 1, 2026
• Study Completion (Estimated): December 1, 2027
• Last Updated: May 20, 2025

Record last verified: 2025-05

Data Sharing

• IPD Sharing: Will not share

Locations

SE (1)