InFUSE ™ Bone Graft / LT-CAGE ™ Lumbar Tapered Fusion Device IDE Clinical Results G960065...
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Transcript of InFUSE ™ Bone Graft / LT-CAGE ™ Lumbar Tapered Fusion Device IDE Clinical Results G960065...
![Page 1: InFUSE ™ Bone Graft / LT-CAGE ™ Lumbar Tapered Fusion Device IDE Clinical Results G960065 Hallett H. Mathews, M.D. Richmond, Virginia.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649da75503460f94a92fc4/html5/thumbnails/1.jpg)
InFUSEInFUSE™™ Bone Graft / Bone Graft /LT-CAGE LT-CAGE ™ ™ Lumbar Tapered Lumbar Tapered
Fusion DeviceFusion Device
IDE Clinical ResultsIDE Clinical ResultsG960065G960065
Hallett H. Mathews, M.D.Hallett H. Mathews, M.D.Richmond, VirginiaRichmond, Virginia
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Primary study objective met Primary study objective met
High fusion ratesHigh fusion rates
Shorter operative times and less Shorter operative times and less blood lossblood loss
Avoided complications and pain Avoided complications and pain associated with bone graft harvestingassociated with bone graft harvesting
Important Findings
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InFUSE™Bone Graft versus InFUSE™Bone Graft versus Autograft Harvested Autograft Harvested
from Iliac Crestfrom Iliac Crest
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Clinical Trial ResultsClinical Trial Results
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Clinical Trial DesignClinical Trial DesignOpen Surgical ApproachOpen Surgical Approach
Prospective, randomized controlled Prospective, randomized controlled designdesign
Investigational Treatment - Investigational Treatment - LT-CAGE LT-CAGE™ ™ Device / InFUSEDevice / InFUSE™ ™ Bone Graft Bone Graft
Control Treatment - Control Treatment - LT-CAGE LT-CAGE ™ ™ Device / autogenous boneDevice / autogenous bone
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Study ObjectivesStudy Objectives
Primary Objective Primary Objective
Equivalence in Overall SuccessEquivalence in Overall Success
Secondary ObjectivesSecondary Objectives
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Study Entrance CriteriaStudy Entrance Criteria
Single levelSingle level
Symptomatic degenerative disc disease Symptomatic degenerative disc disease
Inclusion/exclusion criteriaInclusion/exclusion criteria
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Patient EvaluationPatient Evaluation
PreoperativelyPreoperatively
Surgery/DischargeSurgery/Discharge
Postoperatively:Postoperatively:
6 Weeks, 3 Months, 6 Months6 Weeks, 3 Months, 6 Months
12 Months, 24 Months12 Months, 24 Months
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Patient PopulationPatient Population
PatientsPatients
- 143 received InFUSE™ Bone Graft- 143 received InFUSE™ Bone Graft
- 136 received autogenous bone graft- 136 received autogenous bone graft
16 Investigational Centers16 Investigational Centers
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Demographic InformationDemographic Information
InFUSE™ Autograft
Age (yrs.) 43 42
Weight (lbs.) 179 181
Height (in.) 68 68
Sex (% male) 55 50Worker’s Compensation (%) 33 35Spinal Litigation (%) 33 35
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Surgery DataSurgery Data
InFUSE™ Autograft
Operative Time (hrs.) 1.3 2.0
Blood Loss (ml) 110 153
Hospital Stay (days) 3.1 3.3
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Study Results Based Study Results Based on 24-Month Data on 24-Month Data
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Overall SuccessOverall Success
FusionFusion
15 point improvement in Oswestry score15 point improvement in Oswestry score
Neurological maintenance or Neurological maintenance or improvementimprovement
No serious adverse event possibly No serious adverse event possibly associated to the deviceassociated to the device
No second surgery failureNo second surgery failure
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Overall Success Rates Overall Success Rates
58.860.856.3
59.7
0
10
20
30
40
50
60
70
80
InFUSE
Autograft
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Achieved Primary ObjectiveAchieved Primary Objective
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Safety OverviewSafety Overview
Adverse eventsAdverse events
Second surgery proceduresSecond surgery procedures
Antibody formationAntibody formation
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Adverse EventsAdverse Events
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Adverse EventsAdverse Events
InFUSE™ Autograft
Possibly Relatedto Device (%) 11.9 13.2Rated Serious (%) 7.7 8.8
At least 1 event (%) 79.0 80.1
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Comparison of Adverse EventsComparison of Adverse Eventsin Investigational and Controlin Investigational and Control
Treatment GroupsTreatment Groups
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Differences noted in:Differences noted in:
Graft Site Events - Graft Site Events -
Occurred in 6% of control groupOccurred in 6% of control group
None in investigational groupNone in investigational group
UrogenitalUrogenital
Resolved prior to dischargeResolved prior to discharge
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Adverse EventsAdverse Events
Typical for patient populationTypical for patient population
Not unanticipatedNot unanticipated
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Second Surgery ProceduresSecond Surgery Procedures
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ClassificationsClassifications
RevisionsRevisions
RemovalsRemovals
Supplemental FixationsSupplemental Fixations
ReoperationsReoperations
OtherOther
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ClassificationsClassifications
Revisions - FailureRevisions - Failure
Removals - FailureRemovals - Failure
Supplemental Fixations - FailureSupplemental Fixations - Failure
ReoperationsReoperations
OtherOther
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Second SurgeriesSecond Surgeries
InFUSE™ Autograft
Revisions 0 (0.0) 0 (0.0)
Removals 2 (1.4) 0 (0.0)
SupplementalFixations
10 (7.0) 14 (10.3)
Reoperations 6 (4.2) 4 (2.9)
Other 31 (21.7) 28 (20.6)
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Assessment of Antibody FormationAssessment of Antibody Formation
rhBMP-2
Bovine Type I Collagen
Human Type I Collagen
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Comparision ofComparision ofAuthentic Positive ResponsesAuthentic Positive Responses
Similar for both groupsSimilar for both groups
One patient in each group had positive One patient in each group had positive response to rhBMP-2. (<1%)response to rhBMP-2. (<1%)
13% in each group had positive response 13% in each group had positive response to bovine Type I collagen.to bovine Type I collagen.
None of these patients had positive results None of these patients had positive results for human Type I collagen. for human Type I collagen.
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Safety SummarySafety Summary
Investigational and Control group rates Investigational and Control group rates are are similarsimilar for: for:
Adverse events and second surgery Adverse events and second surgery procedures procedures
Antibody responsesAntibody responses
InFUSE™ Bone Graft eliminates InFUSE™ Bone Graft eliminates graft harvesting adverse events graft harvesting adverse events and pain and pain
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InFUSE™ Bone Graft / InFUSE™ Bone Graft / LT-CAGE™ DeviceLT-CAGE™ Device
Safe for its intended useSafe for its intended use
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Effectiveness OverviewEffectiveness Overview
InFUSEInFUSE™™ Bone Graft / LT-CAGE Bone Graft / LT-CAGE™™ Device Device
patients had:patients had: High fusion ratesHigh fusion rates
Pain reliefPain relief
Maintenance or improvement in Maintenance or improvement in neurological statusneurological status
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FusionFusion
Primary endpointPrimary endpoint
CT scans and radiographs utilizedCT scans and radiographs utilized
Two teams of independent reviewersTwo teams of independent reviewers
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Fusion CriteriaFusion Criteria
RadiographicRadiographic
- Bridging trabecular bone- Bridging trabecular bone
- Segmental stability- Segmental stability
- Lucent line criteria- Lucent line criteria
No “pseudarthrosis” second surgeryNo “pseudarthrosis” second surgery
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Fusion Success Rates Fusion Success Rates
96.9 94.592.6 88.7
0102030405060708090
100
12 Months 24 Months
InFUSEAutograft
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Oswestry Low Back PainOswestry Low Back PainDisability QuestionnaireDisability Questionnaire
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Mean Oswestry ScoresMean Oswestry Scores
0
10
20
30
40
50
60
70
InFUSEAutograft
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Oswestry Success Oswestry Success 15 Point Improvement15 Point Improvement
76.973.075.2 73.1
0
10
20
30
40
50
60
70
80
90
100
12 Months 24 Months
InFUSEAutograft
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Neurological Status MeasurementsNeurological Status Measurements
Motor FunctionMotor Function
SensorySensory
ReflexesReflexes
Straight Leg RaiseStraight Leg Raise
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Neurological Success Rates Neurological Success Rates
82.884.7 83.381.8
0
10
20
30
40
50
60
70
80
90
100
12 Months 24 Months
InFUSEAutograft
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Secondary Effectiveness EndpointsSecondary Effectiveness Endpoints
Back painBack pain
Leg painLeg pain
Disc height maintenanceDisc height maintenance
SF-36SF-36
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Back Pain Results - 24 Months Back Pain Results - 24 Months
InFUSE™ Autograft
Success Rate 74.6 % 78.7%
Mean PointImprovement 8.4 8.1
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Graft Site Pain in Control PatientsGraft Site Pain in Control PatientsMean ScoresMean Scores
0
5
10
15
20
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Graft Site Appearance Graft Site Appearance in Control Patients in Control Patients
12 Months 24 Months
Appearance -Fair or Poor 16.1% 16.4%
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Use of InFUSE™Bone Graft Use of InFUSE™Bone Graft eliminates:eliminates:
Negatives of Graft-site Negatives of Graft-site Appearance, Pain and MorbidityAppearance, Pain and Morbidity
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Laparoscopic Clinical TrialLaparoscopic Clinical Trial
Data augment safety profileData augment safety profile
Supports approval of implantation Supports approval of implantation methodmethod
Identical protocol to open studyIdentical protocol to open study
134 Investigational patients134 Investigational patients
14 Sites14 Sites
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Surgery Data - LaparoscopicSurgery Data - Laparoscopic
2 days shorter hospital stay2 days shorter hospital stay
45% treated on outpatient basis45% treated on outpatient basis
Returned to work 20 days soonerReturned to work 20 days sooner
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Overall Success Rates - Overall Success Rates - Laparoscopic StudyLaparoscopic Study
68.160.8
56.3
69.2
0
10
20
30
40
50
60
70
80
12 Months 24 Months
InFUSE
Autograft from OpenStudy
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Safety Results - Comparable to Safety Results - Comparable to Open Surgical Treatment GroupOpen Surgical Treatment Group
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Laparoscopic Versus Control Laparoscopic Versus Control 24 Months 24 Months
Fusion Equivalent
Oswestry Success Equivalent
Neurological Success Equivalent
Back Pain Equivalent
Leg Pain Equivalent
SF-36 Success Equivalent
Disc Height Success Equivalent
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Fusion Success Rates - Fusion Success Rates - Laparoscopic StudyLaparoscopic Study
94.1 94.292.6 88.7
0102030405060708090
100
12 Months 24 Months
InFUSE
Autograft from OpenStudy
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Case HistoriesCase Histories
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Control Treatment GroupControl Treatment Group
37 year old female37 year old female
L5 - S1 LevelL5 - S1 Level
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Control Treatment GroupControl Treatment Group
38 year old female38 year old female
L5 - S1 LevelL5 - S1 Level
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Open Surgical Approach Open Surgical Approach InFUSE™ Treatment Group InFUSE™ Treatment Group
42 year old male42 year old male
L4 - L5 LevelL4 - L5 Level
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Open Surgical Approach Open Surgical Approach InFUSE™ Treatment Group InFUSE™ Treatment Group
36 year old male36 year old male
L5 - S1 LevelL5 - S1 Level
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As demonstrated in As demonstrated in animal and human studies:animal and human studies:
CT scans most practical and CT scans most practical and definitive method for detecting definitive method for detecting bone formation and determining bone formation and determining fusion.fusion.
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Patient Satisfaction - 24 Months Patient Satisfaction - 24 Months
InFUSE™ Autograft
Satisfied with results ofsurgery
81.2% 80.4%
Helped as much as theythought they would be
74.6% 76.6
Would have the surgeryagain for same condition
82.0% 76.7
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ConclusionsConclusionsOpen Surgical ApproachOpen Surgical Approach
Clinical TrialClinical Trial
Achieved Primary Objective - Overall Success Achieved Primary Objective - Overall Success Rate Statistically Equivalent to ControlRate Statistically Equivalent to Control
Benefits - Shorter Operative Times and Less Benefits - Shorter Operative Times and Less Blood Loss than ControlBlood Loss than Control
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Important Benefits of Important Benefits of InFUSE™ Bone Graft / LT-CAGE™InFUSE™ Bone Graft / LT-CAGE™
Lumbar Tapered Fusion DeviceLumbar Tapered Fusion Device
Induces bone formationInduces bone formation
Eliminates the need to harvest autogenous Eliminates the need to harvest autogenous bone graft in spinal fusion proceduresbone graft in spinal fusion procedures
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Conclusions - Laparoscopic Surgical Conclusions - Laparoscopic Surgical Approach Clinical TrialApproach Clinical Trial
Achieved Primary Objective - Overall Achieved Primary Objective - Overall Success Rate Statistically Equivalent (and Success Rate Statistically Equivalent (and Superior) to ControlSuperior) to Control
Benefits - Shorter Hospital Stays and Faster Benefits - Shorter Hospital Stays and Faster Return to WorkReturn to Work
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InFUSE™ Bone Graft / LT-CAGE™InFUSE™ Bone Graft / LT-CAGE™Lumbar Tapered Fusion DeviceLumbar Tapered Fusion Device
SAFE AND EFFECTIVESAFE AND EFFECTIVE
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