ClinicalTrials.gg
CompletedNCT03562325Updated Jun 19, 2018

ACT for ME/CFS - an Open Case Trial

An interventional study of Acceptance and Commitment Therapy (ACT) in Chronic Fatigue Syndrome, sponsored by Rikard Wicksell. Completed at 1 site in Sweden. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2018-06-19.

Sponsored by Rikard Wicksell · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 5 years 6 months after the study started (first participant enrolled Nov 2012, registered Jun 2018).
Phase
Not applicable
Study type
Interventional
Enrollment
40
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

The goal of this research project is to evaluate if our well-researched behavior medicine treatment model for chronic pain, based on Acceptance and Commitment Therapy, is safe and effective in increasing quality of life and functioning also in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS). To date there are no effective treatments for ME/CFS as the ethology and pathophysiology are unknown, while levels of functioning and quality of life as well as secondary effects such as depressive and anxiety symptoms indicate a highly affected patient population. As such, there is a need for behavior medicine approaches that aim to alleviate suffering and promote increases in quality of life for these patients. The aim of the present study is to do a preliminary evaluation of the safety, acceptability and efficacy of an ACT-based treatment protocol for ME/CFS. An additional aim is to explore potential mediators of change for the effect of treatment on disability.

Read the detailed description

Background Medical strategies alone appear insufficient to increase functioning and quality of life in ME/CFS. Cognitive behavioral therapy (CBT) is the only treatment approach with preliminary evidence of efficacy for improving functioning and quality of life. However, effect sizes are generally modest.

Behavior medicine treatment approaches based on Acceptance \& Commitment Therapy (ACT) have gained increasing attention and research support within clinical trials for similar diagnoses (e.g. chronic pain, Fibromyalgia). Results from these areas illustrate the utility of this approach for individuals with somatic symptomatology. To date, the efficacy of ACT has not been evaluated for ME/CFS.

Purpose The aims of this pilot study are to explore the utility of ACT and to evaluate the feasibility of the treatment model for patients with ME/CFS.

Method Treatment program: 13 weekly to bi-weekly individual ACT sessions with a psychologist (10) and a physician (3) respectively.

An open trial design is used, with assessments at pre-, mid- and post-treatment as well as at 3 and 6 months follow-up. Further, yearly follow-ups until 5-year follow-up are planned.

Measures: History data, illness factors, psychological factors, functioning and quality of life.

Patients: Consecutively recruited via referrals to a specialist treatment centre (n=40). Once patients have been found eligible and expressed interest in study participation they will be assessed by a psychologist and by a physician, via semi-structured interviews to confirm eligibility and to ensure that the patient meet the study criteria. Informed consent is obtained from all participants prior to the assessment.

Statistical analysis: Evaluations of treatment effects are primarily based on intent-to-treat analyses. The statistical approach will primarily be based on linear multilevel modeling (LMM), which takes into account dependencies between repeated measures and differences between patients in pre-treatment status and treatment response (i.e. random effects modeling) and also provide means of handling missing data.

02

Conditions studied

  • Chronic Fatigue Syndrome
03

In context

Fatigue Syndrome, Chronic

263 studies on the registry are indexed under Fatigue Syndrome, Chronic; 61 are open to participants now.

This study's enrollment of 40 is below the median of 60 across 177 interventional studies indexed under Fatigue Syndrome, Chronic.

Browse Fatigue Syndrome, Chronic studies →

Lead sponsor

Rikard Wicksell is the lead sponsor of 4 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria: Subjects were included if

  • Referred to a specialist behavior medicine treatment unit for ME/CFS
  • 18 years of age or older
  • Fulfilling CDC ME/CFS diagnostic criteria AND 2003 clinical case definition ME/CFS diagnostic criteria
  • Treatment resistent symptomatology
  • Evident ME/CFS-related disability (assessed with self-report questionnaires and clinical interviews)
  • Stabile medication during the last 2 months with no planned changes during active study treatment

Exclusion Criteria: Subjects were excluded if:

  • psychiatric or somatic comorbidity was prevalent and assessed as more primary than ME/CFS illness;
  • non-adherence during assessment phase;
  • they did not speak Swedish;
  • ongoing or recently (less than six months) completed CBT-oriented treatment;
  • other treatment than standard care (pharmacological, psychological or otherwise) planned in the coming six months
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
40 participants (actual)

Study arms

  • Other
    ACT

    Acceptance \& Commitment Therapy (ACT)

    Behavioral: Acceptance and Commitment Therapy (ACT)

Interventions

  • BehavioralAcceptance and Commitment Therapy (ACT)

    The main target in ACT for ME/CFS (as for Fibromyalgia and Chronic pain in previous studies by our group) is to promote a shift of perspective in life from symptom reduction (when it does not work) to a valued life. As such it entails acceptance and exposure to discomfort, in order to lessen the effects of negative experiences (symptoms, emotions, thoughts) on behaviours in everyday life.

06

What researchers measure

Primary outcomes

  1. ME/CFS Disability Index (changes between assessments)

    Self-reported ME/CFS-related disability in 7 life domains (domestic; recreational activities; social activities; occupational; sexual life; daily activities; life-sustaining activities). Each item is scored 0-10 (0= no disability, 10=total disability).

    Time frame: Baseline to 6-month follow-up

  2. Psychological Inflexibility in Fatigue Scale (PIFS) (changes between assessments)

    Self-rated psychological inflexibility related to fatigue

    Time frame: Baseline to 6-month follow-up

Secondary outcomes

  1. ME/CFS Symptoms (changes between assessments)

    Self-reported prevalence and intensity (0-4) of ME/CFS symptoms based on the 2003 clinical case definition (0=symptom absence, 4=unbearable).

    Time frame: Baseline to 6-month follow-up

07

Study locations

1 site
  • Karolinska Institutet
    Stockholm, 171 77, Sweden
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Nov 2012 to primary completion in Oct 2017, 59 months.

Of 73 non-industry interventional studies with no phase under Fatigue Syndrome, Chronic, half reached primary completion within 24 months of starting (the median), counting those still running; a quarter within 11 and three quarters within 43. This study's 59 months is above that.

Counting every sponsor, half of 78 studies reached it within 23 months; a quarter within 11 and three quarters within 43.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 8, 2018
First posted
Jun 19, 2018
StartActual
Nov 10, 2012
Primary completionActual
Oct 31, 2017
CompletionActual
Oct 31, 2017
Last update
Jun 19, 2018
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 19, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03562325
Lead sponsor
Rikard Wicksell
Collaborators
Region Stockholm, Skandia Insurance Company, Ltd.
Responsible party
Rikard Wicksell (Associate Professor, Karolinska Institutet) — Sponsor-investigator
First posted
Jun 19, 2018
Start date
Nov 10, 2012
Primary completion
Oct 31, 2017
Completion
Oct 31, 2017
Last update
Jun 19, 2018

Study contacts

Rikard Wicksell, PhD
study director · Director of Functional Area Medical Psychology, Karolinska Univ Hospital, assoc professor and head of research group Behavior Medcine, Karolinska Institutet, Karolinska Institutet

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jun 2018. You cannot join it, but the record below documents what was studied.

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