NCT03551678

Brief Summary

The purpose of this study is to determine changes to knee joint loading, biological markers, and cartilage structure following a novel active feedback gait retraining program in anterior cruciate ligament reconstructed patients.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
45

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jun 2019

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 29, 2018

Completed
13 days until next milestone

First Posted

Study publicly available on registry

June 11, 2018

Completed
1 year until next milestone

Study Start

First participant enrolled

June 21, 2019

Completed
3.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2022

Completed
Last Updated

October 27, 2020

Status Verified

October 1, 2020

Enrollment Period

3.5 years

First QC Date

May 29, 2018

Last Update Submit

October 23, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • Knee Adduction Moment

    Knee Joint Loading (%Bw\*Ht) will be assessed at baseline and immediately after gait retraining

    Change from baseline to immediately after 8 weeks of retraining

Secondary Outcomes (4)

  • Medial knee compartment qMRI

    Change from baseline to 6 months after retraining

  • Knee Adduction Moment

    Change from baseline to 3 months after retraining

  • Knee Adduction Moment

    Change from baseline to 6 months after retraining

  • Serum inflammatory markers

    Change from baseline to immediately after 8 weeks of retraining

Study Arms (1)

Gait retraining

EXPERIMENTAL

Eight weeks of active-feedback gait retraining. The gait retraining device measures pressure/force under the lateral side of the foot and activates vibration if loading crosses a set threshold. The location of the vibration is customized for each subject to achieve maximal sensitivity.

Device: Active feedback gait retraining

Interventions

The device measures pressure/force under the lateral side of the foot and activates vibration if loading crosses a set threshold. The location of the vibration is customized for each subject to achieve maximal sensitivity.

Gait retraining

Eligibility Criteria

Age18 Years - 40 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • age 18-40 years
  • history of primary ACLR with or without meniscal repair
  • full weight-bearing status
  • neutral to varus knee alignment
  • plans to remain in the area for at least 8 months.

You may not qualify if:

  • Kellgren-Lawrence (KL) radiographic grade \> 2
  • additional injury or surgery to the involved knee
  • BMI \>30 kg/m2
  • use of walking, orthopedic, or prosthetic assistive device
  • pregnancy
  • inability to have MRI

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

VA Palo Alto

Palo Alto, California, 94304, United States

RECRUITING

Study Officials

  • Constance Chu, MD

    VAPAHCS and Stanford University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Jennifer Hledik, PhD

CONTACT

Jessica Asay, MS

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
FED
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Study Principal Investigator

Study Record Dates

First Submitted

May 29, 2018

First Posted

June 11, 2018

Study Start

June 21, 2019

Primary Completion

December 31, 2022

Study Completion

December 31, 2022

Last Updated

October 27, 2020

Record last verified: 2020-10

Data Sharing

IPD Sharing
Will not share

Locations