STAND - Study of the AGN1 LOEP SV Kit Compared to PMMA in Patients With Vertebral Compression Fractures

NCT ID: NCT04835428

Last Updated: 2025-09-16

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

408 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-05-31

Study Completion Date

2027-12-31

Brief Summary

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This is a multicenter, single-blinded, randomized controlled clinical trial evaluating the safety and efficacy of the AGN1 LOEP SV Kit for the treatment of painful vertebral compression fragility fractures (VCFs). The objective of this study is to demonstrate non-inferiority of the AGN1 LOEP SV Kit for the treatment of VCFs to standard of care vertebroplasty treatment using bipedicular injection of PMMA bone cement.

Detailed Description

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Four hundred and eight (408) eligible subjects at up to twenty-five (25) study sites will be randomized 1:1 for treatment using the AGN1 LOEP SV Kit (Intervention Group) or PMMA bone cement (Active Control Group).

1. Intervention Group - receives vertebral augmentation of the target VCF(s) using the AGN1 LOEP SV Kit
2. Active Control Group - receives vertebral augmentation of the target VCF(s) using either Stryker VertaPlex HV or Medtronic Kyphon HV-R.

Follow-up visits will be conducted at 7 days, 28 days, 3 months, 12 months and 24 months after the procedure.

Conditions

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Vertebral Compression Fracture Compression Fracture Vertebral Compression

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Four hundred eight (408) eligible subjects at up to twenty-five (25) study sites will be randomized 1:1 for treatment using the AGN1 LOEP SV Kit (Intervention Group) or PMMA bone cement (Active Control Group).
Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants
Study subjects will not be informed of their treatment group assignment at the time of randomization or at any time before the subject's last office visit. The blind will be broken only if it is necessary to protect the safety or welfare of the subject as determined by the Investigator.

Study Groups

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Treatment with AGN1 LOEP SV Kit

The AGN1 LOEP SV Kit is intended for fixation of pathological fractures of the vertebral body using vertebral augmentation. Following saline lavage to create space, the AGN1 implant material is injected and hardens in situ to augment the fractured vertebral body. The AGN1 implant material is then resorbed and replaced with new bone.

Group Type EXPERIMENTAL

Treatment Group: AGN1 LOEP SV Kit

Intervention Type DEVICE

The AGN1 LOEP SV Kit is intended for fixation of pathological fractures of the vertebral body using vertebral augmentation. Following saline lavage to create space, the AGN1 implant material is injected and hardens in situ to augment the fractured vertebral body. The AGN1 implant material is then resorbed and replaced with new bone.

Treatment with PMMA bone cement

High viscosity PMMA bone cement will be used for vertebral augmentation.

Group Type ACTIVE_COMPARATOR

Control Group: PMMA bone cement

Intervention Type DEVICE

High viscosity PMMA bone cement will be used for vertebral augmentation.

Interventions

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Treatment Group: AGN1 LOEP SV Kit

The AGN1 LOEP SV Kit is intended for fixation of pathological fractures of the vertebral body using vertebral augmentation. Following saline lavage to create space, the AGN1 implant material is injected and hardens in situ to augment the fractured vertebral body. The AGN1 implant material is then resorbed and replaced with new bone.

Intervention Type DEVICE

Control Group: PMMA bone cement

High viscosity PMMA bone cement will be used for vertebral augmentation.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Subject is a male or female 50 years of age or older at the time of study treatment.
2. Subject has one (1) or two (2) acute VCF(s). Note that subjects are eligible if they have an asymptomatic, healed VCF(s) at any non-target vertebral level.
3. Each target VCF meets all of the following criteria:

1. Due to diagnosed or presumed underlying osteoporosis
2. T1 to L5 inclusively
3. Target VCF-related pain ≤ 6 months at time of study treatment
4. Each target VCF shows loss of height of the vertebral body ≤ 50% based on X-ray at baseline.
5. Each target VCF is acute or persistent (not healed), as demonstrated on imaging, including T2-weighted, STIR MRI, bone scan or bone scan with SPECT/CT, serial radiographs, or other serial imaging demonstrating acuity.
6. Focal tenderness to palpation of the spinal process of each target VCF on the physical exam correlates with imaging.
7. Subject has failed conservative medical therapy (bed rest, observation, chiropractic care, orthotics, opioid and non-opioid analgesics, and/or physical therapy), defined as either having a VAS back pain score of ≥ 70 mm after 24 hours to 6 weeks of conservative care or a VAS back pain score of ≥ 50 mm after more than 6 weeks of conservative care.
8. Subject has an Oswestry Disability Index (ODI) score of ≥ 30% at baseline.
9. Subject is capable of giving written informed consent to participate in the study.
10. The subject's willingness, ability, and commitment to participate in screening, treatment, and all follow-up evaluations for the full length of the study has been documented

Exclusion Criteria

1. At least one of the target VCF(s) is unstable, including split or burst fracture.
2. Subject has a bleeding disorder.
3. Subject has an active infection of the spine or surgical site.
4. Subject has a bloodborne infection.
5. At least one of the target VCFs is due to underlying or suspected tumor.
6. At least one of the target VCFs is due to high-energy trauma.
7. At least one of the target VCFs is due to osteonecrosis.
8. At least one of the target VCFs has a local kyphotic angle of \> 30 degrees, measured as the angle between the superior endplate and inferior endplate at the target VCF.
9. Subject has had any prior surgical treatment at the target vertebral level or adjacent vertebral levels.
10. The pedicle(s) in the target vertebral body appears unable to safely accommodate transpedicular access instrumentation.
11. Subject has neurologic symptoms, deficits, or radiculopathy related to the target VCF(s).
12. Subject has spinal canal compromise causing clinical manifestations of cord, neural foramen, or nerve root compression at the level to be treated.
13. Subject has pain, progressive weakness, or paralysis due to herniated nucleus pulposus or spinal stenosis.
14. Subject has spondylolisthesis \> Grade 1 at target vertebral body(ies).
15. Subject requires daily opioid medication for pain not related to the target VCF(s).
16. Subject has severe cardiopulmonary deficiencies.
17. Subject has a Body Mass Index (BMI) \> 35.
18. Subject has a history of metabolic bone disease other than osteoporosis (e.g., Paget's disease, renal osteodystrophy, or osteomalacia).
19. Subject has a history of tuberculous spondylitis.
20. Subject has a history of invasive malignancy within the last five (5) years, other than non-melanoma skin cancer. Subject is not excluded if they have a history of malignancy over 5 years ago treated with curative intent and without clinical signs or symptoms since then.
21. Subject is on oral or parenteral immune-suppressive drugs.
22. Subject has uncontrolled diabetes mellitus.
23. Subject has severe renal insufficiency defined as an estimated glomerular filtration rate (eGFR) \< 30 mL/min.
24. Subject has a diagnosed calcium metabolism disorder.
25. Subject has known allergies to calcium-based bone void fillers.
26. Subject is pregnant or planning to become pregnant during participation in the study.
27. In the judgment of the Investigator, the subject is not a good study candidate. (e.g. substance abuse or chemical dependency, inability to adhere to follow-up schedule, progression of the fracture between screening and the procedure visit).
28. Subject is currently enrolled in another interventional clinical study.
Minimum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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AgNovos Healthcare, LLC

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Kern Singh

Role: PRINCIPAL_INVESTIGATOR

Midwest Orthopedics at Rush

Locations

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Orlando Neurosurgery (Conquest Research)

Orlando, Florida, United States

Site Status RECRUITING

Cleveland Clinic Florida

Stuart, Florida, United States

Site Status RECRUITING

Rush University Medical Center

Chicago, Illinois, United States

Site Status RECRUITING

NorthShore University HealthSystem

Evanston, Illinois, United States

Site Status RECRUITING

Duly Health / NextStage Clinical Research

Naperville, Illinois, United States

Site Status WITHDRAWN

University of Kansas Medical Center Research Institute, Inc.

Kansas City, Kansas, United States

Site Status RECRUITING

Abay Neuroscience Center / NextStage Clinical Research

Wichita, Kansas, United States

Site Status WITHDRAWN

Louisiana Spine Institute

Shreveport, Louisiana, United States

Site Status RECRUITING

Anne Arundel Medical Center (AAMC)

Annapolis, Maryland, United States

Site Status WITHDRAWN

Lahey Medical Center

Burlington, Massachusetts, United States

Site Status RECRUITING

Washington University St. Louis

St Louis, Missouri, United States

Site Status RECRUITING

Mt. Sinai

New York, New York, United States

Site Status WITHDRAWN

Montefiore

The Bronx, New York, United States

Site Status RECRUITING

Pinehurst Surgical Clinic

Pinehurst, North Carolina, United States

Site Status RECRUITING

Texas Back Institute

Plano, Texas, United States

Site Status ACTIVE_NOT_RECRUITING

Alabama Clinical Therapeutics

Birmingham, Alabama, United States

Site Status RECRUITING

Elite Pain and Spine Institute

Mesa, Arizona, United States

Site Status RECRUITING

Mayo Clinic

Phoenix, Arizona, United States

Site Status WITHDRAWN

GW Medical Faculty Associates

Washington D.C., District of Columbia, United States

Site Status WITHDRAWN

Countries

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United States

Central Contacts

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Charles Raymond

Role: CONTACT

5704300884

Facility Contacts

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Bailey Murphy, RN

Role: primary

(205) 933-8522

Jill Andringa

Role: backup

Lucia Rodriguez, MS, BS

Role: primary

480-631-9607

Emily Conte

Role: primary

407-916-0060

Irene Ball

Role: primary

772.419.2146

Angelic Gamez

Role: backup

772-223-5945

Kavita Ahuja

Role: primary

224-229-2988

Mukesh Ahuja

Role: backup

312-805-8456

Boris Jancan

Role: primary

847-570-3674

Robert Frech

Role: backup

847-570-4046

Rachel Henning

Role: primary

913-945-8072

Heather Bowman

Role: primary

(318) 629-6337

Marcus Stone, PhD

Role: backup

318-629-5585

Sandy Alvarez

Role: primary

Robin Haverman

Role: primary

(314)747-1624

Aureliana Toma, MD

Role: primary

973-934-0042

Nicole Goolsby

Role: primary

Other Identifiers

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STAND

Identifier Type: OTHER

Identifier Source: secondary_id

AGN-CIP-201

Identifier Type: -

Identifier Source: org_study_id

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