NCT05379127

Brief Summary

Objective: To evaluate the (cost-)effectiveness of a new patient-empowered follow up (FU) protocol in patients with Adolescent idiopathic Scoliosis (AIS) that is based on patient-reported outcome measures (PROMs), self-assessment tools and physical examination, which is compared to standard FU care by: 1) Effect evaluation, 2) Economic evaluation, 3) Implementation (process) evaluation. Study design: A multicentre pragmatic randomized trial design with two arms, combined with a patient preference cohort for each arm (partially randomized preference trial \[PRPT\]). Study population: A total of 812 AIS patients (age 10-18 years) treated by the Dutch AIS Consortium, representing the scoliosis treatment centres in the Netherlands, will be included. Three subgroups of AIS patients are distinguished, which are monitored over two years:

  1. 1.Pre-treatment group: adolescents with curve 10-25° (n=132 per arm; total n=264)
  2. 2.Post-brace treatment group (n=122 per arm; total n=244)
  3. 3.Post-surgery group (n=152 per arm; total n=304)

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
812

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jul 2022

Longer than P75 for not_applicable

Geographic Reach
1 country

23 active sites

Status
unknown

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 6, 2022

Completed
12 days until next milestone

First Posted

Study publicly available on registry

May 18, 2022

Completed
2 months until next milestone

Study Start

First participant enrolled

July 17, 2022

Completed
3.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

November 18, 2023

Status Verified

November 1, 2023

Enrollment Period

3.5 years

First QC Date

May 6, 2022

Last Update Submit

November 17, 2023

Conditions

Keywords

ScoliosisSpineQuality of Health CareCost-Benefit AnalysisPatient ParticipationRadiology

Outcome Measures

Primary Outcomes (1)

  • The proportion of radiographs that has led to treatment consequences

    the proportion will serve as an indication of the sensitivity of the new PE-FU protocol and standard FU protocol. The number of x-rays that has led to treatment will be divided by the total number of x-rays in each subgroup to calculate the primary outcome.

    24 months

Secondary Outcomes (12)

  • The safety of the standard and the new protocol

    for pre-treatment and the post-brace group at 6, 12,18 and 24 months and for the postsurgery group at 3,12 and 24 months

  • The specificity, negative predictive value and positive predictive value of the standard and new patient empowered follow up protocol.

    24 months

  • The change in readiation exposure

    24 months

  • Participants perspective: Numeric pain rating scale [NPRS 0-10]

    24 Months

  • Participants perspective: condition-specific quality of life [SRS-22r]

    24 months

  • +7 more secondary outcomes

Study Arms (2)

Standard follow-up

OTHER

standard care during follow-up

Other: Standard follow-up

Patient-empowered follow-up

EXPERIMENTAL
Other: Patient-empowered follow up

Interventions

The patient-empowered follow-up protocol consists of patient-reported outcome measures (PROMs), self-assessment tools and clinical assessment including physical examination. Radiographs will only be taken when progression of the scoliosis (curve progression) or postoperative complications are suspected based on test results and based on the criteria of so called 'sense of alarm'. Note: Sense of alarm ('niet pluis') is based on any deterioration on the above-mentioned PROMs, self-assessment tool, and clinician-based measurement instruments, which is a signal for the treating physician to consider when a radiograph is appropriate. Sense of alarm is described as any other concern by the orthopaedic surgeon, parent or child which warrants a radiograph. For both the Bunnell Scoliometer (clinical assessment tool) and the Scolioscoop (patient self-assessment tool) a threshold of ≥4° is used.

Patient-empowered follow-up

Routine radiographs are taken at each follow up visit during standard care (to detect possible curve progression or rule out postoperative complications).

Standard follow-up

Eligibility Criteria

Age10 Years - 18 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Patients with adolescent idiopathic scoliosis (AIS).
  • Age: 10-18 years old.
  • Patients scheduled for follow up in one of the participating centres.
  • Understanding of the Dutch language.
  • Signed informed consent.
  • Biplanar (Posterior-Anterior \[PA\] and Lateral) full-spine x-rays within the last 3 months.
  • Specifically for the pre-treatment group:
  • Girls aged ≤14 years (i.e. 10-14 years) and boys \<16 years (i.e. 10-15 years). These patients still have generally 2 years of remaining skeletal growth. Patients above this age with a curve below 25 degrees have a limited risk for progression
  • Girls: pre-menarche up to 6 months post-menarche (to estimate end of growth)
  • A primary coronal curve of 10-25 degree.
  • Specifically for the post-brace group:
  • Patients aged 12-18 years
  • Within 3 months after termination of brace treatment
  • Minimum of 6 months of brace treatment
  • Specifically for the post-surgery group:
  • +1 more criteria

You may not qualify if:

  • Patients with juvenile or infantile idiopathic scoliosis with the diagnosis of onset under the age of 10.
  • Patients who are undergoing brace treatment. These patients are not included because of the need to monitor brace therapy with radiographs.
  • Patients who have undergone previous spinal surgery and are undergoing revision surgery.
  • Skeletally mature patients.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (23)

Isala

Zwolle, Drenthe, 8025AB, Netherlands

RECRUITING

Flevo ziekenhuis

Almere Stad, Flevoland, 1315RA, Netherlands

RECRUITING

Rijnstate

Arnhem, Gelderland, 6815 AD, Netherlands

NOT YET RECRUITING

St Jansdal

Harderwijk, Gelderland, 3844 DG, Netherlands

NOT YET RECRUITING

Maastricht UMC+

Maastricht, Limburg, 6229HX, Netherlands

RECRUITING

Viecuri

Venlo, Limburg, 5912, Netherlands

RECRUITING

Sint Maartenskliniek

Boxmeer, North Brabant, 5835 DV, Netherlands

RECRUITING

Amphia

Breda, North Brabant, 4818CK, Netherlands

RECRUITING

ETZ Elisabeth

Tilburg, North Brabant, 5022GC, Netherlands

NOT YET RECRUITING

Noordwestziekenhuis groep

Alkmaar, North Holland, 1815JD, Netherlands

NOT YET RECRUITING

OLVG

Amsterdam, North Holland, 1091AC, Netherlands

RECRUITING

Amsterdam UMC

Amsterdam, North Holland, 1105AZ, Netherlands

RECRUITING

Spaarne Gasthuis

Haarlem, North Holland, 2035 RC, Netherlands

RECRUITING

Dijklander

Hoorn, North Holland, 1624NP, Netherlands

NOT YET RECRUITING

Albert Schweitzer ziekenhuis

Dordrecht, South Holland, 3318 AT, Netherlands

RECRUITING

Groene Hart ziekenhuis

Gouda, South Holland, 2803HH, Netherlands

NOT YET RECRUITING

Leiden UMC

Leiden, South Holland, 2333ZA, Netherlands

RECRUITING

Erasmus MC

Rotterdam, South Holland, 3015GD, Netherlands

RECRUITING

Maasstad ziekenhuis

Rotterdam, South Holland, 3079 DZ, Netherlands

RECRUITING

Juliana kinderziekenhuis

The Hague, South Holland, 2545 AA, Netherlands

RECRUITING

Meander

Amersfoort, Utrecht, 3813TZ, Netherlands

RECRUITING

UMC Groningen

Groningen, 9713, Netherlands

RECRUITING

UMC Utrecht

Utrecht, 3584 CX, Netherlands

RECRUITING

MeSH Terms

Conditions

ScoliosisPatient Participation

Condition Hierarchy (Ancestors)

Spinal CurvaturesSpinal DiseasesBone DiseasesMusculoskeletal DiseasesPatient Acceptance of Health CareTreatment Adherence and ComplianceHealth BehaviorBehavior

Study Officials

  • Miranda L van Hooff, PhD

    Radboud University Medical Center

    PRINCIPAL INVESTIGATOR
  • Marinus de Kleuver, MD, PhD

    Radboud University Medical Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Model Details: A multicentre pragmatic randomized trial design with two arms, combined with a patient preference cohort for each arm (partially randomized preference trial; PRPT). The PRPT consists of three separate randomized controlled trials (RCTs) including patients in the pre-treatment phase, post-brace phase or post-operative phase. Alongside the RCTs prospective preference cohorts are included for each treatment arm (patient empowered follow up \[PE-FU\] or standard follow up \[standard FU\]). In the preference cohorts all patients are monitored who are not willing (i.e. who have a preference for either the standard FU or PE-FU) to be randomized to either treatment arm, but who are still willing to participate in the study. By including preference cohorts the generalizability of study results is studied while the internal validity is assured. * Half of participants (n=406) allocation: randomized (RCT) * Half of participants (n=406) allocation: based on preference (preference cohorts)
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 6, 2022

First Posted

May 18, 2022

Study Start

July 17, 2022

Primary Completion

December 31, 2025

Study Completion

December 31, 2025

Last Updated

November 18, 2023

Record last verified: 2023-11

Locations