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Flexible spine tether could offer Motion-Saving alternative to fusion for scoliosis

NCT ID NCT05830825

Disease control Sponsor: LDR Médical SAS Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 21, 2026 · Last updated Jul 22, 2026 · Updated 1 time

Summary

This study follows about 100 children with progressive idiopathic scoliosis who undergo vertebral body tethering surgery using the Tether™ device. The goal is to track safety and how well the device keeps the spine straight over time. Participants are skeletally immature with moderate curves who have not responded to bracing. The study collects information during standard follow-up visits to see if the device maintains curve correction and avoids serious complications.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Vertebral Body Tethering (VBT) surgery with the Tether™ device
What this could lead to
If successful, this could confirm that the Tether™ device is a safe and effective alternative to spinal fusion for growing children with scoliosis, allowing spine straightening while preserving motion.
What could go wrong
This is an observational study, not a controlled trial, so results may not prove the device is better than other treatments. Risks include device-related complications, reoperations, and the possibility that curve correction may not be maintained over time.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 100 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jul 2024

Expected to finish

Dec 2033

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Skeletally immature patients that require surgical treatment to obtain and maintain correction of progressive idiopathic scoliosis (Lenke Type 1 curves), with a major Cobb angle of 30 to 65 degrees whose osseous structure is dimensionally adequate to accommodate screw fixation, as determined by radiographic imaging. Patients should have failed bracing and/or be intolerant to brace wear.

Ages

0 to 30 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Diagnosis of progressive idiopathic scoliosis; * Skeletally immature, based on both Risser (\<5) and Sanders (\<8) assessments; * Major Cobb angle ≥30° and ≤65°; * Osseous structure dimensionally adequate to accommodate screw fixation, as determined by radiographic imaging; * Failed bracing and/or be intolerant to brace wear; * Lenke Type 1 curves (i.e., main thoracic); * Signed Informed Consent Form by legal guardian or by the patient if ≥ 16 years old. * The decision to treat patients with The Tether™ - VBT System was made by the patient's clinician outside of this research Exclusion Criteria: * Presence of any systemic infection, local infection, or skin compromise at the surgical site; * Prior spinal surgery at the level(s) to be treated; * Known poor bone quality defined as a T-score -1.5 or less; * Skeletal maturity; * Any other medical or surgical condition which would preclude the potential benefit of spinal surgery, such as coagulation disorders, allergies to the implant materials, and patients unwillingness or inability to cooperate with post-operative care instructions; * Unwillingness, inability, or living situation (e.g., custody arrangements, homelessness, detention) that would preclude ability to return to the study site for follow-up visits as described in protocol and Informed Consent; * Patients who are pregnant at the time of enrollment.

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Conditions

The condition(s) this trial relates to.

idiopathic scoliosis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Scoliosis idiopathic

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The study's own enquiry address

    This study publishes an address for enquiries. See it below .

  2. The places running it

    3 sites. The list below names each one and where it is.

  3. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  4. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

Locations

  • Freeman Hospital

    RECRUITING

    Newcastle upon Tyne, United Kingdom

  • Saint George's Hospital

    RECRUITING

    London, SW17 0QT, United Kingdom

  • University Southampton Hospital

    RECRUITING

    Southampton, United Kingdom

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