NCT04597866

Brief Summary

Complex regional pain syndrome, CRPS, is an uncommon but often very disabling chronic pain syndrome characterized by, beside pain: sensory disturbances, peripheral autonomic changes and inflammatory features. The diagnosis is subdivided in CRPS type 1 where no nerve injury has been identified, and CRPS type 2 when a major nerve injury has been verified. A combination of exposure in vivo, a form of behaviour therapy where the patient is gradually confronted with avoided movements and activities, and interventions directly targeting a hypothesized cortical reorganisation is an interesting novel approach for treating CRPS. The present study consists of (1) a qualitative interview study with 10-15 subjects that has received this form of treatment, in order to better understand their experience and effects of the treatment, and (2) a case series with long-term follow-up of 3-5 subjects that received the treatment för 5-8 years ago, in order to study the long term effects of the treatment.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
10

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Sep 2020

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 15, 2020

Completed
6 days until next milestone

Study Start

First participant enrolled

September 21, 2020

Completed
1 month until next milestone

First Posted

Study publicly available on registry

October 22, 2020

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2021

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2021

Completed
Last Updated

February 28, 2024

Status Verified

February 1, 2024

Enrollment Period

9 months

First QC Date

September 15, 2020

Last Update Submit

February 27, 2024

Conditions

Outcome Measures

Primary Outcomes (2)

  • Diagnosis

    Whether the subject still fulfill diagnostic criteria for CRPS

    1 day

  • Subjective experience

    A qualitative interview targeting the subjects own experience of the treatment and its effect

    1 day

Secondary Outcomes (10)

  • Level of pain

    1 day

  • Subjective experience of quality of life

    1 day

  • Global impression of change

    1 day

  • Acceptance of pain

    1 day (0-156, higher scores mean a better outcome)

  • Fear of pain

    1 day (0-52, lower scores mean a better outcome)

  • +5 more secondary outcomes

Study Arms (1)

CRPS

Behavioral: Multimodal rehabilitation

Interventions

A combination of exposure in vivo and interventions directly targeting the cortical reorganization for treating CRPS.

CRPS

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Subjects with CRPS 1 or 2, diagnosed according to the Budapest criteria that has received in-patient treatment at Uppsala University Hospital, comprised of graded exposure therapy in vivo, in combination with methods targeting cortical reorganisation.

You may qualify if:

  • Has participated in multimodal treatment for CRPS at Uppsala University Hospital

You may not qualify if:

  • Other serious physical or mental condition

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Uppsala University

Uppsala, 75185, Sweden

Location

MeSH Terms

Conditions

Complex Regional Pain SyndromesChronic Pain

Condition Hierarchy (Ancestors)

Autonomic Nervous System DiseasesNervous System DiseasesPeripheral Nervous System DiseasesNeuromuscular DiseasesPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Kristoffer Bothelius, PhD

    Uppsala University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 15, 2020

First Posted

October 22, 2020

Study Start

September 21, 2020

Primary Completion

June 30, 2021

Study Completion

December 31, 2021

Last Updated

February 28, 2024

Record last verified: 2024-02

Locations