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Effectiveness and cost-effectiveness of a guided and unguided internet-based acceptance and commitment therapy for chronic pain: a three-armed randomised controlled trial

Effectiveness and cost-effectiveness of a guided and unguided internet-based acceptance and commitment therapy for chronic pain: a three-armed randomised controlled trial - ACTonPain

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00006183
Enrollment
300
Registered
2014-10-02
Start date
2014-10-06
Completion date
Unknown
Last updated
2025-10-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

chronic pain R52.2 F45.41 R52.1

Interventions

Group 1: Participants receive GET.ON chronic pain guided, i.e. participants receive feedback emails from an ecoach after each lesson, who. by doing so accompanies the participants during the processin

Sponsors

Abteilung für Klinische Psychologie und Psychotherapie,Institut für Psychologie und Pädagogik, Universität Ulm
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1) age =18 years, 2) chronic pain (duration = 6 months) with 3) considerable intensity (=at least Grade II according to the Chronic Pain Grade questionnaire (CPG), 4) being medically suitable for participation in an internet-based chronic pain intervention 5) sufficient knowledge of the German language, 6) sufficient computer and internet literacy, 7) having internet access.

Exclusion criteria

Exclusion criteria: 1) cancer related pain, 2) ongoing or planned psychological pain intervention in the past or forthcoming three months and 3) elevated risk of suicide (PHQ-9 Suicide Item = 1).

Design outcomes

Primary

MeasureTime frame
pain interference (MPI Interference-Scale) at pre-(T1), post-(T2) and at follow-up (T2) of the intervention. T0= before randomisation, T1= 9 weeks after randomisation, T2= 6 months after randomisation

Secondary

MeasureTime frame
At Screening: demographic variables (sex, age, education and social support), prior pain treatments, type, chronicity and comorbidities by participants´ self-report. At T0, T1 and T2: Pain impairment: Brief Pain Inventory (BPI), Patient Health Questionnaire (PHQ-9), Generalised Anxiety Disorder Screener (GAD-7), Pain intensity (11-point numerical rating scale (NRS)), Quality of life: Short Form 12 (SF-12) and EuroQol (EQ-5D), Acceptance and Action Questionnaire-II (AAQ-II, German version: Fragebogen zu Akzeptanz und Handeln II (FAH-II), Chronic Pain Acceptance Questionnaire (German version: CPAQ-D), a to the context of pain treatments adapted version of the Trimbos/iMTA questionnaire for costs associated with psychiatric illness (TiC-P) Treatment process (after lessons 2,4 and 6): FAH-II and CPAQ-D. T1 and T2: Patient Global Impression of Change scale (PGIC). Active groups only: the participants’ intervention adherence based on the attrition rate (i.e. percentage of participants who no longer log into the intervention), satisfaction with the intervention: Client Satisfaction Questionnaire (CSQ-8) in German (Fragebogen zur Patientenzufriedenheit; ZUF-8), adapted to the online intervention context at T1.

Countries

Germany

Contacts

Public ContactJiaxi Lin

Abteilung für Rehabilitationspsychologie und Psychotherapie,Institut für Psychologie, Universität Freiburg

jiaxi.lin@psychologie.uni-freiburg.de++49-(0)761-203-3045

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 24, 2026