Effectiveness of psychotherapy in patients with medically unexplained physical symptoms

ISRCTN ISRCTN13532466
DOI https://doi.org/10.1186/ISRCTN13532466
Secondary identifying numbers GA18-08512S
Submission date
09/05/2018
Registration date
14/05/2018
Last edited
05/07/2022
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Signs and Symptoms
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
Mental health professionals, as well as doctors, often see patients presenting physical symptoms for which a physical cause is either absent or does not explain these complaints sufficiently. While in general language these conditions are often called “psychosomatic” (caused by a mental factor) the term “medically unexplained physical symptoms” (MUPS) has been coined in the medical context. Given the importance of psychological factors in the cause of MUPS, psychological treatments represent a promising approach to the treatment of patients with MUPS. However, reviews and meta-analyses have shown that while various forms of psychological treatments are effective in the treatment of MUPS, the ability to get results is rather low. While some studies indicated that higher effects may be achieved by longer treatments and by more complex approaches, the volume of research is small. Therefore, the full potential of psychological treatments for MUPS remains unexplored.
This study aims to assess the effectiveness of a multi-component psychological treatment in the treatment of patients with MUPS and to examine the process of the therapeutic change.

Who can participate?
Adult patients aged over 18 years who enter group-based psychological treatment in the participating clinics.

What does the study involve?
Participants receive a psychological treatment made up of group psychotherapy, supplemented by activities such as relaxation training, yoga, and art therapy. It is provided on daily basis (5 days/week) for a period of 6 to 12 weeks.

What are the possible benefits and risks of participating?
We do not anticipate any side effects of the participation in our study.

Where is the study run from?
1. Psychosomatic Clinic, Prague (Czech Republic)
2. Psychotherapeutic and Psychosomatic Clinic ESET, Prague (Czech Republic)
3. Day Care Center „Karlov”, Psychiatric Clinic of the General University Hospital in Prague (Czech Republic)
4. Day Care Center Horní Palata, General University Hospital in Prague (Czech Republic)
5. Psychiatric Hospital, Šternberk (Czech Republic)

When is the study starting and how long is it expected to run for?
January 2018 to December 2020

Who is funding the study?
The Czech Science Foundation (Czech Republic)
Grantová Agentura České Republiky

Who is the main contact?
Dr Tomáš Řiháček (Scientific)
rihacek@fss.muni.cz

Contact information

Dr Tomáš Řiháček
Scientific

Department of Psychology
Faculty of Social Studies
Masaryk University
Joštova 10
Brno
602 00
Czech Republic

ORCiD logoORCID ID 0000-0001-5893-9289
Phone +420 549 494 871
Email rihacek@fss.muni.cz

Study information

Study designMulticentre pre-post study of psychotherapy effectiveness
Primary study designInterventional
Secondary study designNon randomised study
Study setting(s)Other
Study typeTreatment
Participant information sheet Not available in web format, please use contact details to request a participant information sheet.
Scientific titleEffectiveness of psychotherapy in patients with medically unexplained physical symptoms: A multi-site naturalistic study
Study objectivesEFFECTIVENESS HYPOTHESES
H1: Patients with medically unexplained physical symptoms (MUPS) report decrease in the intensity of MUPS after psychotherapy (primary outcome).
H2: Patients with MUPS report decrease in depression after psychotherapy.
H3: Patients with MUPS report decrease in anxiety after psychotherapy.
H4: Patients with MUPS report decrease in general distress after psychotherapy.
H5: Patients with MUPS report increase in well-being after psychotherapy.
H6: Patients with MUPS report increase in role functioning after psychotherapy.

CHANGE MECHANISM HYPOTHESES
H7: Decrease in MUPS intensity is preceded by increase in somatic awareness.
H8: Decrease in MUPS intensity is preceded by increase in emotional regulation skills.
H9: Decrease in MUPS intensity is preceded by increase in acceptance of symptoms.
H10: Decrease in MUPS intensity is preceded by increase in satisfaction of a patient's relational needs.
H11: Decrease in MUPS intensity is preceded by increase in the clarification of meaning.
H12: Decrease in MUPS intensity is predicted by the quality of therapeutic alliance.
H13: Decrease in MUPS intensity is predicted by the quality of group cohesion.
Ethics approval(s)1. Research Ethics Committee of Masaryk University, 30/01/2018, ref: EKV-2017-029-R1
2. Ethics Committee of the General University Hospital Prague, 15/02/2018, ref: 2143/17 S-IV
Health condition(s) or problem(s) studiedMedically unexplained physical symptoms (MUPS)
InterventionMulti-component psychological treatment is provided to all participants on a daily basis. The core of the treatment is group psychotherapy provided with a frequency of 2 to 5 times a week for a period of 6 to 12 weeks, supplemented by activities such as relaxation training, yoga, and art therapy. This is a naturalistic study and the intervention is not at the discretion of the investigator. While the composition of the treatment package differs slightly across participating clinics, the defining aspect (i.e., group psychotherapy) is present in all settings.
Intervention typeBehavioural
Primary outcome measureIntensity of medically unexplained physical symptoms is measured using PHQ-15 at the beginning of the treatment, weekly during the treatment, at termination, and 6 and 12 months after termination.
Secondary outcome measuresSECONDARY OUTCOMES
1. General distress is measured using ORS at the beginning of treatment, weekly during treatment, and at termination.
2. Depression is measured using PHQ-9 at the beginning of treatment, at termination, and 6 and 12 months after termination.
3. Anxiety is measured using GAD-7 at the beginning of treatment, at termination, and 6 and 12 months after termination.
4. Well-being is measured using WHO-5 at the beginning of treatment, at termination, and 6 and 12 months after termination.
5. Role functioning is measured using selected items from PHQ at the beginning of treatment, at termination, and 6 and 12 months after termination.

HYPOTHESIZED MEDIATORS OF CHANGE WHICH, THEMSELVES, REPRESENT SECONDARY OUTCOMES
6. Somatic awareness is measured using MAIA at the beginning of treatment, weekly during treatment, and at termination.
7. Emotion regulation skills are measured using ERSQ at the beginning of treatment, weekly during treatment, and at termination.
8. Acceptance of symptoms is measured using CPAQ modified at the beginning of treatment, weekly during treatment, and at termination.
9. Satisfaction of relational needs is measured using RNS-20 at the beginning of treatment, weekly during treatment, and at termination.
Overall study start date01/01/2018
Completion date31/12/2020

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants500
Total final enrolment444
Key inclusion criteria1. Age of 18 or more years
2. Occurrence of at least one somatic symptom with a duration of at least six months not fully explained by any somatic diagnosis
Key exclusion criteria1. Diagnosis of a severe mental disorder that would make participation in this kind of treatment impossible
2. Diagnosis of an organic disease responsible for the symptoms

Note: All patients willing to participate are included in the study. Primary analysis is conducted on patients with MUPS. Secondary analyses, however, are conducted on the whole sample (i.e., including patients without somatic symptoms and those with somatic symptoms explained by an organic disease).
Date of first enrolment26/01/2018
Date of final enrolment31/12/2019

Locations

Countries of recruitment

  • Czech Republic

Study participating centres

Psychosomatická klinika
Patočkova 3
Prague
169 00
Czech Republic
Denní sanatorium Horní Palata Všeobecné fakultní nemocnice v Praze a 1. lékařské fakulty Univerzity Karlovy
U Nesypky 28
Prague
150 00
Czech Republic
Denní stacionář Karlov Všeobecné fakultní nemocnice v Praze a 1. lékařské fakulty Univerzity Karlovy
Ke Karlovu 11
Prague
121 08
Czech Republic
Psychoterapeutická a psychosomatická klinika ESET
Úvalská 47
Prague
100 00
Czech Republic
Psychiatrická nemocnice Havlíčkův Brod
Rozkošská 2322
Havlíčkův
Brod
580 01
Czech Republic
Psychiatrická klinika Fakultní nemocnice Hradec Králové
Sokolská 581
Hradec
Králové
500 05
Czech Republic
Fakultní nemocnice Ostrava, Oddělení psychiatrické
17. listopadu 5
Ostrava-Poruba
708 52
Czech Republic

Sponsor information

Faculty of Social Studies, Masaryk University
University/education

Joštova 10
Brno
602 00
Czech Republic

Website http://fss.muni.cz
ROR logo "ROR" https://ror.org/02j46qs45

Funders

Funder type

Research organisation

Grantová Agentura České Republiky
Private sector organisation / Trusts, charities, foundations (both public and private)
Alternative name(s)
Grant Agency of the Czech Republic, Czech Science Foundation, Grantová agentura ČR, Grantové agentury, GrantovaAgentura, GAČR, GACR, GA ČR, GA CR
Location
Czech Republic

Results and Publications

Intention to publish date31/12/2022
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a high impact peer-reviewed journal.
IPD sharing planCurrent IPD sharing statement as of 26/03/2019:
The individual participant questionnaire data collected during the trial will be shared, after deidentification. The data will be made available upon reasonable request for three years after the end of the project. Afterwards, it will be made available to anyone who wishes to access it with no end date. The Data Set, Statistical Analysis Plan and Analytic Code will be made available at https://osf.io/dfrma/

Previous IPD sharing statement:
The datasets generated during and/or analysed during the current study are/will be available upon request from Tomáš Řiháček, rihacek@fss.muni.cz

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article 01/07/2022 04/07/2022 Yes No

Editorial Notes

05/07/2022: The intention to publish date has been changed from 30/06/2022 to 31/12/2022.
04/07/2022: Publication reference added.
22/10/2021: Internal review.
08/07/2021: The following changes have been made:
1. The intention to publish date has been changed from 31/01/2021 to 30/06/2022.
2. The total final enrolment number has been changed from 449 to 444.
14/02/2020: Total final enrolment number added.
26/03/2019: The following changes were made to the trial record:
1. Trial participating centres were added (Psychiatrická nemocnice Havlíčkův Brod, Psychiatrická klinika Fakultní nemocnice Hradec Králové, Fakultní nemocnice Ostrava, Oddělení psychiatrické)
2. A trial participating centre was removed (Psychiatrická léčebna Šternberk).
3. The IPD sharing statement was added to the publication and dissemination plan.