ClinicalTrials.gg
RecruitingNCT04299022Updated Sep 15, 2026

Safety, Efficacy, & Use of ViviGen Cellular Bone Matrix Allograft in Orthopaedic Fracture Care

An observational study in Fractures, Bone, Nonunion of Fracture and Fractures, Open, sponsored by LifeNet Health. Recruiting at 4 sites in United States. Per ClinicalTrials.gov, last updated 2026-09-15.

Sponsored by LifeNet Health · Observational

From the registry’s dates

  • Started Jun 2021; still recruiting 5 years 5 months later.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
250
Sex
All
01

Study summary

Prospective registry and retrospective data collection study to assess the efficacy and safety of Vivigen Cellular Bone Matrix (Vivigen) in orthopaedic trauma patients who require bone grafting in the acute, delayed, non-union fracture as well as use in fusion procedure settings.

Read the detailed description

The prospective registry study and retrospective data collection study is planned to assess the efficacy and safety of Vivigen Cellular Bone Matrix (Vivigen) in orthopaedic trauma patients who require bone grafting in the acute, delayed, non-union fracture as well as use in fusion procedure settings.

Patients will be assessed at hospital discharge, 6 weeks, 3 months, 6 months, 12 months and 24 months after treatment of a traumatic fracture with a bone graft.

02

Conditions studied

  • Fractures, Bone
  • Nonunion of Fracture
  • Fractures, Open
  • Fractures, Ununited
  • Fracture, Tibial
  • Fracture of Femur
  • Fracture Arm

Keywords

  • fracture
  • nonunion
  • allograft
03

In context

Fractures, Bone

723 studies on the registry are indexed under Fractures, Bone; 114 are open to participants now.

This study's planned enrollment of 250 is above the median of 130 across 239 observational studies indexed under Fractures, Bone.

Browse Fractures, Bone studies →

Lead sponsor

LifeNet Health is the lead sponsor of 9 studies on the registry; 2 are open to participants now.

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

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Sampling method
Non-probability sample

Study population

Prospective data will be collected for up to 250 subjects across up to 7 academic medical centers that will receive Vivigen Cellular Bone Matrix for treatment of a fracture. Retrospective data will be collected for up to an additional 250 subjects that received a bone graft adjunct for treatment of a fracture.

Eligibility criteria

Prospective Cohort Inclusion Criteria:

  • Any skeletally mature patient treated with Vivigen bone graft in the setting of an acute fracture, delayed, non-union or fusion setting will be eligible for inclusion.

Retrospective Cohort Inclusion Criteria:

- Any skeletally mature patient treated with adjunct bone graft in the setting of an acute fracture, delayed, non-union or fusion setting will eligible for inclusion.

Prospective Cohort Exclusion Criteria:

  1. Patients unable to understand either an English or Spanish consent will be excluded.
  2. Patients unable to consent secondary to dementia and/or other mental/psychiatric diagnoses will be excluded.
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
250 participants (estimated)
Target follow-up
24 Months
Patient registry
Yes

Groups and cohorts

  • Prospective Registry

    Treatment for diagnoses of long bone non-union involving the tibia or femur and other nonunion diagnosis (i.e. clavicle, humerus, and femur) with Vivigen Cellular Bone Matrix

    Other: Vivigen Cellular Bone Matrix

  • Retrospective Data Collection

    Treatment of diagnoses of long bone non-union involving the tibia or femur and other nonunion diagnosis (i.e. clavicle, humerus, and femur) with adjunct bone graft utilized in the acute, delayed, non-union and fusion settings.

Interventions

  • OtherVivigen Cellular Bone Matrix

    Allograft bone matrix

06

What researchers measure

Primary outcomes

  1. Reintervention Rate

    the proportion of patients requiring secondary intervention (return to the operating room) within twelve months after definitive wound closure

    Time frame: 24 months

Secondary outcomes

  1. Fusion Rate

    Acute fracture, delayed union or nonunion rate as assessed with radiographs at 6 weeks, 3 months, 6 months, 12 months and 24 months

    Time frame: 24 months

  2. Patient Reported Outcome Measurement Information System (PROMIS) Scores

    Patient reported outcome measures will be measured via PROMIS scoring tool (mental and physical). The PROMIS uses a T-score metric in which 50 is the mean of a relevant reference population and 10 is the standard deviation (SD) of that population. For PROMIS measures, higher scores equals more of the concept being measured (e.g., more Fatigue, more Physical Function). Thus a score of 60 is one standard deviation above the average referenced population.

    Time frame: 24 months

07

Study locations

2 of 4 sites recruiting
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jun 2021 (actual). Primary completion is estimated for Jul 2028, 85 months after the start.

Of 86 observational studies under Fractures, Bone, half reached primary completion within 46 months of starting (the median), counting those still running; a quarter within 20 and three quarters within 124. This study's planned 85 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 4, 2020
First posted
Mar 6, 2020
StartActual
Jun 1, 2021
Primary completionEst.
Jul 31, 2028
CompletionEst.
Jul 31, 2028
Last update
Sep 15, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 15, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04299022
Lead sponsor
LifeNet Health
Responsible party
Sponsor
First posted
Mar 6, 2020
Start date
Jun 1, 2021
Primary completion
Jul 31, 2028 (estimated)
Completion
Jul 31, 2028 (estimated)
Last update
Sep 15, 2026

Study contacts

Monique Alston-Epps
Contact
monique_alstonepps@lifenethealth.org
757-609-4378
Kimberly Dorsch
Contact
kimberly_dorsch@lifenethealth.org
757-609-4378
Kimberly Dorsch
study director · LifeNet Health

Oversight

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

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