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Clinical Trial Details — Status: Terminated

Administrative data

NCT number NCT02200302
Other study ID # AF - 02
Secondary ID
Status Terminated
Phase N/A
First received July 24, 2014
Last updated March 7, 2017
Start date October 2014
Est. completion date May 2016

Study information

Verified date February 2017
Source Apifix
Contact n/a
Is FDA regulated No
Health authority
Study type Observational [Patient Registry]

Clinical Trial Summary

Adolescent idiopathic scoliosis (AIS) is a common disorder of unknown etiology in which the vertebrae and discs gradually develop a curvature that is first detected in patients between 11 and 20 years of age. The deformity is 3-dimensional, with a coronal curve measured from radiographs by the Cobb angle .

The Cobb angle measurement of scoliosis represents the sum of the angular wedging of each vertebra and disc between the superior and inferior end vertebrae . Although a small curve is well tolerated and does not require treatment, a large curve can progress to the point that it is cosmetically unacceptable, interferes with chest wall mechanics, and produces cardiac and pulmonary compromises. The natural history of AIS apparently includes 2 stages: the initiation of the curve and its subsequent progression. The factors responsible for the initiation of the curve are unknown, but the subsequent progression of the curve is clearly associated with the adolescent growth spurt . The primary risk factors for progression include age at onset and the magnitude of the curve; young patients with large curves are at the highest risk .

Although numerous treatment methods have been recommended for patients with AIS, the only accepted treatment includes bracing for skeletally immature patients with curves between 25 and 40 degrees and operative correction with spinal fusion for patients with curves greater than 45 degrees. For many teenagers, the cosmetic and social concerns associated with bracing has caused compliance problems with wearing the brace and many patients only wear the brace at home . While operative intervention completely corrects the scoliosis or rib hump, it eliminates segmental spinal motion, and concentrates stresses at the ends of the fusion potentially leading to disc degeneration and back pain.

Despite satisfactory short-term results of operative instrumentation and fusion, a less invasive technique preserving more motion with a smaller scar represents a major improvement. Realizing this goal is contingent on treating curves early, before they progress to an irreversible deformity, and when there is still enough residual growth and remodeling potential.

ApiFix Ltd has developed a novel implant for less invasive treatment of AIS. The MID-C system is designed to correct the deformity step by step along a period of time, giving the skeletal and soft tissues time to accommodate any incremental correction.

The MID-C System inherent benefits are:

- Only two screws are used

- Incision size is much smaller

- Simpler operation with shorter operative time

- Less complications (attributed to the three points above).

- Minimal spinal mobility loss.

All the device components are made of materials well accepted in the orthopedic field and are fully biocompatible (see Investigator Brochure).

The unique concept of the system and the materials used may provide favorable results as follows: Smaller scare, quicker healing period and better spine mobility over the years.

This study is designed to demonstrate that the MID-C System is safe and effective.


Description:

The study is designed as a European, observational study with a 12-month follow-up period. Consecutive patients undergoing treatment of AIS by the MID-C system in daily practice will be included during a 6-month enrollment period.


Recruitment information / eligibility

Status Terminated
Enrollment 2
Est. completion date May 2016
Est. primary completion date May 2016
Accepts healthy volunteers No
Gender All
Age group 11 Years to 20 Years
Eligibility Inclusion Criteria:

- 11= Adolescents < 20 years old

- Patient undergoing treatment of AIS by the MID-C system in daily practice

- Minimum of 35 degrees Cobb angle, confirmed by X-ray. Lenke type 1 or 5

- Flexible major curve, correction to below 30° at lateral bending.

- Risser sign of 1 to 5

- Appropriate candidate for posterior surgical approach as determined by surgeon

- Subject has good general health as determined by physician.

- Subject has no known hypersensitivity and allergies to Titanium

- Subject's guardian willing to sign a written Informed Consent Form (ICF)

Exclusion Criteria:

- Cobb angle over 60 degrees

- Other non-idiopathic scoliosis.

- AIS which is not defined as Lenke type 1 or 5

- Previous spine surgery.

- Known allergy to any component of the device.

- Known active systemic disease, such as AIDS, HIV, or active infection

- Systemic disease that would affect the subject's welfare or overall outcome of the study as determined by the physician.

- Mentally compromised as determined by the physician

Study Design


Related Conditions & MeSH terms


Locations

Country Name City State
France Unité d'Orthopédie-traumatologie, Rachis II Bordeaux

Sponsors (1)

Lead Sponsor Collaborator
Apifix

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary No Device related Serious Adverse Event 1 year
Primary No curve progression ?10° above or below the implant 1 year
See also
  Status Clinical Trial Phase
Completed NCT02285621 - Validation of a New Generation of Optimized Orthoses for Personalized Treatment of Adolescent Idiopathic Scoliosis N/A
Recruiting NCT05774002 - Psychological Assessment of Scoliosis Patients Undergoing Surgical Management N/A
Not yet recruiting NCT06365892 - Open-label Placebo (COLP) for Pain in Adolescent Idiopathic Scoliosis (AIS) Surgery+Surgical Treatment of Idiopathic Scoliosis Phase 2/Phase 3
Completed NCT03071471 - Feasibility Evaluation Study of the MID-C Device N/A
Recruiting NCT05561725 - Perioperative Steroid Dosing on the APR in AIS Phase 4
Completed NCT03071445 - Feasibility Study of MID-C for AIS N/A