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RecruitingNCT05314608IOBPUpdated Dec 5, 2022

Knee Related Subchondral Bone Lesions Treated With IOBP

An observational study in Subchondral Cyst, sponsored by Arthrex, Inc.. Recruiting at 5 sites in United States. Open to participants aged 18 Years to 60 Years. Per ClinicalTrials.gov, last updated 2022-12-05.

Sponsored by Arthrex, Inc. · Observational

From the registry’s dates

  • Started Nov 2021; still recruiting 4 years 11 months later.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
100
Ages
18 Years to 60 Years
Sex
All
01

Study summary

The study will be a prospective, multicenter clinical study evaluating clinical and patient reported outcome measures of subjects receiving IOBP® surgical technique using Angel cPRP and BMA processing system to treat subchondral bone pathology (SBP).

Read the detailed description

The study will be a prospective, multicenter, clinical study, enrolling both male and female patients. Subjects will be identified among the investigators' patient population scheduled for the IOBP® procedure and as being diagnosed with symptomatic SBP that have failed conservative management. IRB approval will be obtained by each participating institution.

The primary outcome measure is adverse event evaluation to determine whether IOBP® can prevent further surgical intervention (i.e., knee replacement surgery, HTO, or calcium phosphate stabilization of SBP) when used to treat symptomatic SBP of the knee.

02

Conditions studied

  • Subchondral Cyst

Browse trials for

03

In context

Bone Cysts

18 studies on the registry are indexed under Bone Cysts; 5 are open to participants now.

Browse Bone Cysts studies →

Lead sponsor

Arthrex, Inc. is the lead sponsor of 18 studies on the registry; 7 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
Sampling method
Non-probability sample

Study population

Subjects will be identified among the investigators' patient population scheduled for the IOBP® procedure and as being diagnosed with symptomatic SBP that have failed conservative management.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Able to read, understand, sign and complete
  2. Male or female subject between the ages of 18-60 years
  3. Subject has had pain for greater than three months
  4. Subjects with single SBP in tibia or femur confirmed by minimum 1.5T MRI (including coronal, axial, sagittal, lateral femur, and lateral tibia views) and are candidates for an IOBP® procedure
  5. Subject has stable ligaments
  6. Subject has neutral alignment (max 5° varus or valgus)
  7. Subject has a VAS score greater than or equal to five
  8. Subject is scheduled to undergo surgical intervention using IOBP®

Exclusion criteria

Exclusion Criteria:

  1. Subject has diabetes Type I, Type II uncontrolled, or Type II insulin dependent
  2. Subject has had lower extremity surgery within six months
  3. Subject has had more than two prior surgical procedures in the operative leg
  4. Subject has a neuromuscular condition
  5. Subject has a current infection
  6. Subject has a >35
  7. Subject has subchondral bone collapse or Kellgren Lawrence grade IV osteoarthritis
  8. Subject has joint surface collapse in late stage avascular necrosis
  9. Subject has majority of pain associated with alternate conditions
  10. Subject has had subchondral bone pathology caused by acute trauma
  11. Subject is not neurologically intact.
  12. Subject has history of invasive (except non-melanoma skin cancer)
  13. Subject that has a planned or scheduled additional surgery within the course of the study (lower extremity)
  14. Subject has an active substance abuse problem
  15. Subject is currently taking narcotic pain medication
  16. Subject is pregnant or planning to become pregnant
  17. Subject is on worker's compensation
  18. Subject has a concomitant procedure not including meniscectomy, synovectomy, chondroplasty, or removal of loose body
  19. Inability to complete study requirements and follow-up visits
  20. Subject that has a bone marrow aspiration that does not meet 60cc
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
100 participants (estimated)
Patient registry
No

Groups and cohorts

  • Subjects with subchondral bone pathology

    Subjects with subchondral bone pathology

    Combination Product: IntraOsseous BioPlasty® (IOBP®) Surgical Technique into the knee

Interventions

  • Combination productIntraOsseous BioPlasty® (IOBP®) Surgical Technique into the knee

    Injection of a biologic mixture (BMC and allograft) into the subchondral bone lesion

06

What researchers measure

Primary outcomes

  1. Prevention of additional surgery into the target knee

    To evaluate if IOBP® procedure will prevent further surgical intervention (i.e., knee replacement surgery, HTO, or calcium phosphate stabilization of SBP) when used to treat symptomatic SBP of the knee.

    Time frame: 5 years

Secondary outcomes

  1. Visual Analog Pain Scale (VAS)

    Patient reported pain scale using a 10 cm scale with a numeric rating of 0 to 10, with 0

    Time frame: Collected at pre-op, 1 week post-op, 6 weeks post-op, 3 months post-op, 6 months post-op , 1 years post-op , 2 years post-op, 3 years post-op , 4 years post-op and 5 years post-op.

  2. International Knee Documentation Committee Subjective Knee Evaluation Form

    A patient-oriented questionnaire that assesses symptoms and function in daily living activities. The purpose of this study was to validate the IKDC Subjective Knee Form in a large patient population with various knee disorders.

    Time frame: knee-specific instrument, developed to assess the patients' opinion about their knee and associated problems. The KOOS evaluates both short-term and long-term consequences of knee injury.

  3. Knee Injury and Osteoarthritis Outcome Score (KOOS)

    A knee-specific instrument, developed to assess the patients' opinion about their knee and associated problems. The KOOS evaluates both short-term and long-term consequences of knee injury.

    Time frame: Collected at pre-op, 1 week post-op, 6 weeks post-op, 3 months post-op, 6 months post-op , 1 years post-op , 2 years post-op, 3 years post-op , 4 years post-op and 5 years post-op

  4. X-rays of the knee

    Images include weight-bearing AP, 45 degree weight bearing PA, lateral and merchant views. Images taken to determine location and status of subchondral bone lesion.

    Time frame: 6 months and 1 year

  5. MRI of the knee

    Minimum 1.5 Tesla MRI (including coronal, axial, sagittal, lateral femur, and lateral tibial views). Image taken to determine location and status of subchondral bone lesion.

    Time frame: 6 months and 1 year

07

Study locations

5 of 5 sites recruiting
  • University of Colorado Sports Medicine
    Denver, Colorado 80222, United States
    Recruiting
    • Rachel Frank · Contact
    • Rachel Frank · Principal investigator
  • Andrews Research and Education Foundation
    Gulf Breeze, Florida 32561, United States
    Recruiting
    • Adam Anz · Contact850-916-8575
    • Adam Anz · Principal investigator
  • TidalHealth Peninsula Regional, Inc.
    Salisbury, Maryland 21801, United States
    Recruiting
    • Jason Scopp · Contact
    • Jason Scopp · Principal investigator
  • The Ohio State University
    Columbus, Ohio 43201, United States
    Recruiting
    • David Flanigan · Contact
    • David Flanigan · Principal investigator
  • Allegheny-Singer Research Institute
    Pittsburgh, Pennsylvania 15212, United States
    Recruiting
    • Brian Mosier · Contact
    • Brian Mosier · Principal investigator
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 Dec 5, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05314608
Lead sponsor
Arthrex, Inc.
Responsible party
Sponsor
First posted
Apr 6, 2022
Start date
Nov 17, 2021
Primary completion
May 17, 2027 (estimated)
Completion
May 17, 2027 (estimated)
Last update
Dec 5, 2022

Study contacts

Justin W Moss, DHSc
Contact
justin.moss@arthrex.com
770 584 4972
Alicia Ruiz, MS
Contact
1 (800) 933-7001 ext. 71970
Adam Anz
principal investigator · Andrews Research and Education Foundation

Oversight

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

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