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Effect van nachtelijke en fulltime spalken voor carpaal tunnelsyndroom (FINCROSS)

29 september 2026 bijgewerkt door: Tampere University Hospital

Effect van nacht- en fulltime spalken voor carpaal tunnelsyndroom: een multicenter, drie perioden, gerandomiseerde cross-over superioriteitsstudie (FINCROSS - Finse cross-over studie voor carpaal tunnelsyndroom)

Carpal tunnel syndrome is a common compression neuropathy of upper extremities. Its usual symptoms are pain, numbness and tingling of fingers, which tend to be worse at night. Splinting the wrist with an external orthosis is usually a first-line treatment provided to most people with mild to moderate disease.

The FINCROSS trial (randomized cross-over trial) aims to assess the effect of night-time and full-time splinting in comparison with no-treatment. It also aims to identify possible subgroups of people who would benefit from splinting, as well as assess if positive response to splinting is associated with subsequent lower need of surgery.

The trial will recruit 110 people with carpal tunnel syndrome in Finland. Each participant will undergo all three treatment periods in a randomised order: 1) splinting at night-time for six weeks, 2) splinting both day and night for six weeks; and 3) be assessed under a six weeks long control period of no-treatment.

Each treatment period will be separated with a three-week washout period. Therefore, the whole treatment sequence for each participant lasts 24 weeks after randomization. The participant will be followed-up to 1 year after the randomisation.

Additionally, the participants will get instructions for self-administered stretching exercises to perform throughout the study. All participants will be asked to avoid any intervention administered or supervised by medical personnel (such as structured supervised exercises, manual therapy, steroid injections, surgery, etc.).

Studie Overzicht

Toestand

Werving

Conditie

Interventie / Behandeling

Studietype

Ingrijpend

Inschrijving (Geschat)

110

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Locaties

  • Finland
      • Helsinki, Finland
        • Werving
        • Terveystalo Kamppi
        • Contact:
          • Teemu Paatela
      • Jyväskylä, Finland
        • Werving
        • Hospital Nova of Central Finland
        • Contact:
          • Teemu Karjalainen
      • Jyväskylä, Finland
        • Werving
        • Terveystalo Jyväskylä
        • Contact:
          • Teemu Karjalainen
      • Mikkeli, Finland
        • Werving
        • Mikkeli Central Hospital
        • Contact:
          • Anniina Laurema
      • Tampere, Finland
        • Actief, niet wervend
        • Tampere University Hospital
      • Tampere, Finland
        • Werving
        • Terveystalo Tampere
        • Contact:
          • Teemu Karjalainen

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar en ouder (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  1. Clinically confirmed carpal tunnel syndrome (CTS) of any severity level (diagnostic criteria: numbness, pain or paraesthesia in the median nerve distribution area of wrist and fingers),
  2. Symptom duration of CTS for at least 3 weeks,
  3. No previous corticosteroid injection for CTS during last 6 months,
  4. No previous surgery for CTS,
  5. Aged 18 years or older,
  6. Able to complete self-report questionnaires electronically,
  7. Able to understand Finnish,
  8. Willing to join the study and follow the study protocol instructions,
  9. Sign informed consent.

Exclusion Criteria:

  1. Nerve root or plexus disorders that might be causing CTS mimicking symptoms (e.g., cervical radiculopathy, thoracic outlet syndrome, or whiplash associated disorders),
  2. Other neurological condition affecting the function of the hand such as Multiple Sclerosis, previous nerve injury,
  3. Active Rheumatoid arthritis or any other active inflammatory joint disease affecting the hand,
  4. Thenar muscle atrophy,
  5. Untreated hypothyroidism,
  6. Known allergy to any of the splint materials (self-reported by patient),
  7. Long term treatment (over 4 months) for CTS with no response,
  8. Any other known reason that could prevent from participation for the study time.

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Crossover-opdracht
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Ander: Sequence of three treatment periods in the following order: ABC

Splinting at night while sleeping for 6 weeks (period A), then no treatment for 6 weeks (period B), then splinting at day and night for 6 weeks (period C). Each treatment period will be separated by 3-week washout period.
Apparaat: splinting

neutral-positioned wrist orthosis
Ander: Sequence of three treatment periods in the following order: ACB

Splinting at night while sleeping for 6 weeks (period A), then splinting at day and night for 6 weeks (period C), then no treatment for 6 weeks (period B). Each treatment period will be separated by 3-week washout period.
Apparaat: splinting

neutral-positioned wrist orthosis
Ander: Sequence of three treatment periods in the following order: BAC

No treatment for 6 weeks (period B), then splinting at night while sleeping for 6 weeks (period A), then splinting at day and night for 6 weeks (period C). Each treatment period will be separated by 3-week washout period.
Apparaat: splinting

neutral-positioned wrist orthosis
Ander: Sequence of three treatment periods in the following order: BCA

No treatment for 6 weeks (period B), then splinting at day and night for 6 weeks (period C), then splinting at night while sleeping for 6 weeks (period A). Each treatment period will be separated by 3-week washout period.
Apparaat: splinting

neutral-positioned wrist orthosis
Ander: Sequence of three treatment periods in the following order: CAB

Splinting at day and night for 6 weeks (period C), then splinting at night while sleeping for 6 weeks (period A), then no treatment for 6 weeks (period B). Each treatment period will be separated by 3-week washout period.
Apparaat: splinting

neutral-positioned wrist orthosis
Ander: Sequence of three interventions/treatments in the following order: CBA

Splinting at day and night for 6 weeks (period C), then no treatment for 6 weeks (period B), then splinting at night while sleeping for 6 weeks (period A). Each treatment period will be separated by 3-week washout period.
Apparaat: splinting

neutral-positioned wrist orthosis

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Change of The 6-item CTS Symptoms Scale scores between baseline and 6 weeks
Tijdsspanne: 6 weeks, i.e. end of each treatment period

6-item CTS Symptoms Scale is a 6-item questionnaire, with score from 1 to 5 to each of the item, higher score indicating worse symptoms. The study will use a Finnish version of The 6-item CTS Symptoms Scale.
6 weeks, i.e. end of each treatment period

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Change of The 6-item CTS Symptoms Scale scores between baseline and 3 weeks
Tijdsspanne: 3 weeks, i.e. middle of each treatment period

6-item CTS Symptoms Scale is a 6-item questionnaire, with score from 1 to 5 to each of the item, higher score indicating worse symptoms. The study will use a Finnish version of The 6-item CTS Symptoms Scale.
3 weeks, i.e. middle of each treatment period
Change of The 6-item CTS Symptoms Scale scores between baseline and 1 year
Tijdsspanne: 1 year

6-item CTS Symptoms Scale is a 6-item questionnaire, with score from 1 to 5 to each of the item, higher score indicating worse symptoms. The study will use a Finnish version of The 6-item CTS Symptoms Scale.
1 year
Change of The Boston Carpal Tunnel Questionnaire Symptom Severity Scale scores (BCTQ SSS) between baseline and 6 weeks of each treatment period
Tijdsspanne: 6 weeks, i.e. end of each treatment period

BCTQ SSS is an 11-item questionnaire, with score from 1 to 5 to each of the item, higher score indicating worse symptoms. The study will use a Finnish version of the BCTQ SSS.
6 weeks, i.e. end of each treatment period
Change of The Boston Carpal Tunnel Questionnaire Symptom Severity Scale scores (BCTQ SSS) between baseline and 1 year
Tijdsspanne: 1 year

BCTQ SSS is an 11-item questionnaire, with score from 1 to 5 to each of the item, higher score indicating worse symptoms. The study will use a Finnish version of the BCTQ SSS.
1 year
Change of The Boston Carpal Tunnel Questionnaire Functional Status Scale (BCTQ FSS) between baseline and 6 weeks of each treatment period
Tijdsspanne: 6 weeks, i.e. end of each treatment period

BCTQ FSS is an 8-item questionnaire, with score from 1 to 5 to each of the item, higher score indicating worse function. The study will use a Finnish version of the BCTQ FSS.
6 weeks, i.e. end of each treatment period
Change of The Boston Carpal Tunnel Questionnaire Functional Status Scale (BCTQ FSS) between baseline and 1 year
Tijdsspanne: 1 year

BCTQ FSS is an 8-item questionnaire, with score from 1 to 5 to each of the item, higher score indicating worse function. The study will use a Finnish version of the BCTQ FSS.
1 year
Change of The Boston Carpal Tunnel Questionnaire (BCTQ) Total between baseline and 6 weeks
Tijdsspanne: 6 weeks, i.e. end of each treatment period

BCTQ Total consists of BCTQ SSS and BCTQ FSS, with score from 1 to 5 to each of the item, higher score indicating worse function.
6 weeks, i.e. end of each treatment period
Change of The Boston Carpal Tunnel Questionnaire (BCTQ) Total between baseline and 1 year
Tijdsspanne: 1 year

BCTQ Total consists of BCTQ SSS and BCTQ FSS, with score from 1 to 5 to each of the item, higher score indicating worse function.
1 year
Overall improvement as measured by 7-point Likert Scale
Tijdsspanne: 6 weeks, i.e. end of each treatment period

7-point Likert Scale assesses the improvement of hand symptoms with 7 possible scores: much better, better, somewhat better, no changes, somewhat worse, worse, much worse.
6 weeks, i.e. end of each treatment period
Overall improvement as measured by 7-point Likert Scale
Tijdsspanne: 1 year

7-point Likert Scale assesses the improvement of hand symptoms with 7 possible scores: much better, better, somewhat better, no changes, somewhat worse, worse, much worse.
1 year
Change of The EuroQol 5-dimension (EQ-5D-5L) Health Status and Quality-of-life Measure score between baseline and 6 weeks of each treatment period
Tijdsspanne: 6 weeks, i.e. end of each treatment period

Finnish version of EQ-5D-5L will be used.
6 weeks, i.e. end of each treatment period
Change of The EuroQol 5-dimension (EQ-5D-5L) Health Status and Quality-of-life Measure score between baseline and 1 year
Tijdsspanne: 1 year

Finnish version of EQ-5D-5L will be used.
1 year
Adverse effects
Tijdsspanne: up to 1 year

Assessed by participant self-reported adverse events.
up to 1 year
Need for surgery
Tijdsspanne: up to 1 year

Assessed by participant self-reported information of referral to or executed surgery.
up to 1 year
Escape treatments (e.g., corticosteroid injection or any other treatment supervised by medical personnel)
Tijdsspanne: up to 1 year

Assessed by participant self-reported information of undergoing or having undergone the escape treatment.
up to 1 year

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Tampere University Hospital

Medewerkers

Mikkeli Central Hospital
Terveystalo
Hospital Nova, Central Finland

Onderzoekers

  • Hoofdonderzoeker: Teemu Karjalainen, Tampere University Hospital
  • Hoofdonderzoeker: Jarkko Jokihaara, Tampere University Hospital

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

15 februari 2023

Primaire voltooiing (Geschat)

1 december 2028

Studie voltooiing (Geschat)

1 december 2028

Studieregistratiedata

Eerst ingediend

18 oktober 2022

Eerst ingediend dat voldeed aan de QC-criteria

23 november 2022

Eerst geplaatst (Werkelijk)

5 december 2022

Updates van studierecords

Laatste update geplaatst (Werkelijk)

5 oktober 2026

Laatste update ingediend die voldeed aan QC-criteria

29 september 2026

Laatst geverifieerd

1 september 2026

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • R22093

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

NEE

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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