NCT06450834

Brief Summary

In spine surgery, it is important to try to minimize bleeding. In particular, spine surgery often involves inserting hardware into bone, and/or removing bone in the spine. Because the bone in the spine contains blood vessels, there can often be bleeding from the bone itself that is difficult to stop completely. One way to stop bone bleeding is through the use of wax-like materials, which plug the bleeding bone and act as a physical barrier to stop bleeding. One example is Ostene bone hemostasis material, which has the advantage of being "water soluble", meaning it will dissolve naturally over time. The purpose of this study is to evaluate how well Ostene does at decreasing bleeding, by using a recognized scale called the validated intraoperative bleeding severity scale, abbreviated as "VIBe". In this study, the investigators will record the bleeding severity throughout multiple time points in surgery using this scale, and then the investigators will compare the measurements to patients in the past who did not receive Ostene. Overall, this research will help measure how well Ostene decreases bleeding.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
173

participants targeted

Target at P50-P75 for all trials

Timeline
13mo left

Started Jan 2025

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress55%
Jan 2025Jun 2027

First Submitted

Initial submission to the registry

May 28, 2024

Completed
13 days until next milestone

First Posted

Study publicly available on registry

June 10, 2024

Completed
7 months until next milestone

Study Start

First participant enrolled

January 17, 2025

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2027

Last Updated

July 30, 2025

Status Verified

July 1, 2025

Enrollment Period

2.4 years

First QC Date

May 28, 2024

Last Update Submit

July 25, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • Intraoperative blood transfusion

    binary and number of units

    Intraoperative

  • postoperative blood transfusion

    binary and number of units

    3 days

Secondary Outcomes (13)

  • preoperative hemoglobin/hematocrit

    Immediately preoperative

  • 3 days before surgery of preoperative hemoglobin/hematocrit

    3 days

  • postoperative hemoglobin/hematocrit

    3 days

  • days after surgery of postoperative hemoglobin/hematocrit

    3 days

  • postoperative drain output

    From the first day postoperatively then measured daily, until the patient is discharged, up to 1 year

  • +8 more secondary outcomes

Study Arms (2)

Ostene

Patients who received Ostene during their thoracolumbar spine surgery

Device: Ostene

No Ostene

Propensity score matched cohort from previous study that did not receive Ostene during their spine surgery

Interventions

OsteneDEVICE

Soluble Bone Hemostasis Implant Material

Ostene

Eligibility Criteria

Age18 Years - 88 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Adult patients 18 to 88 years old undergoing elective thoracolumbar decompression, instrumentation, and fusion procedures with an open, posterior approach and without indication for trauma, tumor, or suspected/confirmed infection, emergent triage status, an anterior or lateral approach, or a minimally invasive approach

You may qualify if:

  • Adult patients 18 to 88 years old
  • Elective thoracolumbar decompression, instrumentation, and fusion procedure
  • Open, posterior approach
  • Patients included for analysis in a related prior study which had enrollment criteria congruent with the current study

You may not qualify if:

  • Indication for trauma, tumor, or suspected/confirmed infection
  • Emergent triage status
  • Anterior or lateral approach
  • Minimally invasive approach

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Maryland Medical Center

Baltimore, Maryland, 21201, United States

Location

MeSH Terms

Conditions

Intraoperative ComplicationsBlood Loss, SurgicalPostoperative HemorrhagePostoperative Complications

Condition Hierarchy (Ancestors)

Pathologic ProcessesPathological Conditions, Signs and SymptomsHemorrhage

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Orthopaedics

Study Record Dates

First Submitted

May 28, 2024

First Posted

June 10, 2024

Study Start

January 17, 2025

Primary Completion (Estimated)

June 1, 2027

Study Completion (Estimated)

June 1, 2027

Last Updated

July 30, 2025

Record last verified: 2025-07

Data Sharing

IPD Sharing
Will not share

There is currently no plan to share IPD data with any other researchers.

Locations