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Not yet recruitingNCT05776628Updated Mar 12, 2024

Evaluation of Plenum® Tissue Ortho to Prevent Epidural Fibrosis and Post-laminectomy Syndrome.

An interventional study of Plenum® Tissue ortho membrane (polydioxanone membrane) in Herniated Disk Lumbar, sponsored by M3 Health. Not yet recruiting at 1 site in Brazil. Open to participants aged 18 Years to 60 Years. Per ClinicalTrials.gov, last updated 2024-03-12.

Sponsored by M3 Health · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Primary completion was expected by Oct 2024, 2 years ago, but the record still lists the study as not yet recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
36
Allocation
Randomized
Ages
18 Years to 60 Years
Sex
All
01

Study summary

The goal of this clinical trial is to compare if adding a polydioxanone membrane prevents epidural fibrosis and, consequently, the rate of occurrence of the post-laminectomy syndrome in participants undergoing microdiscectomy for treatment of disc herniation.

Read the detailed description

Participants will be submitted to microdiscectomy with the addition of a polydioxanone membrane over the dura mater in the test group and without in the control group.

The groups will be compared regarding improving patients' quality of life, evaluation of epidural fibrosis, and device safety.

02

Conditions studied

  • Herniated Disk Lumbar
03

In context

Intervertebral Disc Displacement

478 studies on the registry are indexed under Intervertebral Disc Displacement; 104 are open to participants now.

This study's planned enrollment of 36 is below the median of 63 across 344 interventional studies indexed under Intervertebral Disc Displacement.

Browse Intervertebral Disc Displacement studies →

Lead sponsor

M3 Health is the lead sponsor of 4 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Pain radiating to one of the legs confirmed with an MRI scan;
  • Patients who have already undergone conservative treatment (treatment with medication and physiotherapy) for at least 6 weeks, but have not shown improvement;
  • Non-pregnant women or women of childbearing age who use contraceptive methods;
  • Having signed the free and informed consent form (TCLE).

Exclusion criteria

Exclusion Criteria:

  • Patients with concomitant pathologies (eg infection or tumor and segmental instability or vertebral fractures);
  • Cauda equina syndrome;
  • Strength deficit characterized by strength equal to or less than III/V;
  • Previous surgery of the lumbar spine;
  • Patientes who have wound healing disorders;
  • Patients with contraindications for evaluating MRI with the use of contrast;
  • More than 1 herniated disk.
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
36 participants (estimated)

Study arms

  • Active comparator
    Polydioxanone membrane

    After flavectomy and manipulation of the spinal nerve and dura mater to resect the herniated intervertebral disk, the membrane will be placed on top of the dura mater.

    Device: Plenum® Tissue ortho membrane (polydioxanone membrane)

  • No intervention
    Control

    The microdiscectomy procedure will be performed routinely, without the addition of any device over the dura mater.

Interventions

  • DevicePlenum® Tissue ortho membrane (polydioxanone membrane)

    Membrane addition after flavectomy and spinal nerve and dura mater manipulation.

06

What researchers measure

Primary outcomes

  1. Patient's quality of life

    Assessed by the Oswestry Questionnaire for lumbar evaluation (The low back pain disability Oswestry questionnaire).

    Time frame: Change from the baseline, to immediate potostoperative period (14 days) and to late postoperative period (6 months).

Secondary outcomes

  1. Epidural fibrosis

    Evaluation of epidural fibrosis using Magnetic Resonance Imaging (IMR) will grade the scar from 0 to 4 for 5 contiguous axial slices centered around the intervertebral disc. The scar will be graded as none (0) (no scar on the dural surface), mild (1) (scar on less than 25% of the surface), mild-moderate (2) (scar on 25-50 % of the surface), (3) moderate-extensive (scarring on 50-75% of the surface), or extensive (4) (scarring on more than 75% of the surface).

    Time frame: 6 months postoperatively.

  2. Patient's quality of life

    SF-36 Questionnaire

    Time frame: Before the procedure, in the immediate postoperative period (14 days) and in the late postoperative period (6 months).

  3. Low back and leg pain

    Pain change will be measured by a Visual Analogue Scale (VAS)

    Time frame: Before the procedure, in the immediate postoperative period (14 days) and in the late postoperative period (6 months).

  4. Intervention safety

    Adverse events occurrence

    Time frame: Through study completion, an average of 6 months

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Study locations

1 site
  • M3 Health
    Jundiaí, São Paulo 13212213, Brazil
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 12, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05776628
Lead sponsor
M3 Health
Collaborators
Irmandade da Santa Casa de Misericordia de Sao Paulo
Responsible party
Sponsor
First posted
Mar 20, 2023
Start date
Apr 2024 (estimated)
Primary completion
Oct 2024 (estimated)
Completion
Apr 2025 (estimated)
Last update
Mar 12, 2024

Study contacts

Robert Meves, PhD
Contact
robertmeves@hotmail.com
+55112176-1525
Sybele Saska Specian, PhD
Contact
pesquisa@plenum.bio
+551131099068
Sybele Saska Specian, PhD
study director · M3 Health

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Nov 2023. You cannot join it, but the record below documents what was studied.

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