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RecruitingNCT05619484Updated Oct 10, 2023

Smart Ankle-Foot Orthosis to Improve Stroke Outcomes: Smart AFO

A Phase 2 interventional study of Smart AFO in Stroke, sponsored by Orthocare Innovations, LLC. Recruiting at 3 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-10-10.

Sponsored by Orthocare Innovations, LLC · Phase 2, Interventional, and Other

From the registry’s dates

  • Primary completion was expected by Aug 2024, 2 years 1 month ago, but the record still lists the study as recruiting.
  • Started Aug 2022; still recruiting 4 years 1 month later.
Phase
Phase 2
Study type
Interventional
Enrollment
50
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

The Smart Ankle-Foot Orthosis (Smart AFO) system is an investigational system that combines a diagnostic ankle-foot orthosis with a mobile application to assist clinicians in optimizing an AFO user's gait by adjusting AFO stiffness and range of motion settings, and quantifying functional walking improvements in post-stroke individuals. The purpose of the clinical testing is to evaluate the Smart AFO system with its target users: post-stroke AFO users and orthotists. This may include, but is not limited to, identifying any aspects of the Smart AFO system that could be improved through clinical testing and evaluating the gait of post-stroke AFO users walking with an AFO adjusted using the Smart AFO system.

02

Conditions studied

  • Stroke

Browse trials for

Keywords

  • ankle-foot orthosis
  • orthotist
03

In context

Stroke

7,286 studies on the registry are indexed under Stroke; 2,007 are open to participants now.

This study's planned enrollment of 50 is close to the median of 50 across 5,369 interventional studies indexed under Stroke.

Browse Stroke studies →

Lead sponsor

Orthocare Innovations, LLC is the lead sponsor of 7 studies on the registry; 3 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Age 18 years or older
  • Mass less than 90 kg (200 lbs)
  • At least six months post-stroke
  • Hemiplegia or hemiparesis as a result of stroke
  • Foot drop during swing phase (often identified by a toe catch), on at least one side
  • Current user of an AFO
  • Current user of an AFO with a Triple Action Joint is acceptable
  • Has bilateral passive ankle range of motion within normal limits
  • Able to walk safely on level ground for at least 100 feet without rest
  • Able to communicate individual perceptions in the English language
  • Able to provide written informed consent
  • Participants that will use a treadmill during data collection must also be able to walk independently and safely on an instrumented treadmill

Exclusion criteria

Exclusion Criteria:

  • Confounding injury, musculoskeletal issues, or cognitive issues that limit effective participation
  • Pregnancy
  • Not able to read and understand English
  • Use of assistive device that requires bilateral upper extremities
05

Study design

Phase
Phase 2
Primary purpose
Other
Allocation
Non-randomized
Intervention model
Crossover assignment
Masking
Single (Participant)
Enrollment
50 participants (estimated)

Study arms

  • No intervention
    Participant's prescribed ankle-foot orthosis
  • Experimental
    Smart AFO

    Device: Smart AFO

Interventions

  • DeviceSmart AFO

    Diagnostic ankle-foot orthosis with AFO stiffness and range of motion settings adjusted using a mobile application

06

What researchers measure

Primary outcomes

  1. Timed Up and Go (TUG) test

    The Timed Up and Go (TUG) test is a validated timed functional test that involves standing up from a chair, walking forward for 3 meters, turning around, walking back to the chair for 3 meter, and sitting down. Measured in seconds.

    Time frame: Assessed on day 1 (data collection day) with prescribed AFO

  2. Timed Up and Go (TUG) test

    The Timed Up and Go (TUG) test is a validated timed functional test that involves standing up from a chair, walking forward for 3 meters, turning around, walking back to the chair for 3 meter, and sitting down. Measured in seconds.

    Time frame: Assessed on day 1 (data collection day) with Smart AFO

  3. Ankle plantarflexion

    Average ankle joint angle at foot flat after initial contact (degrees)

    Time frame: Assessed on day 1 (data collection day) with prescribed AFO

  4. Ankle plantarflexion

    Average ankle joint angle at foot flat after initial contact (degrees)

    Time frame: Assessed on day 1 (data collection day) with Smart AFO

  5. Ankle power

    Average peak ankle joint power during stance phase (Newton-meters/second)

    Time frame: Assessed on day 1 (data collection day) with prescribed AFO

  6. Ankle power

    Average peak ankle joint power during stance phase (Newton-meters/second)

    Time frame: Assessed on day 1 (data collection day) with Smart AFO

  7. Knee angle

    Average knee joint angle at midstance (degrees)

    Time frame: Assessed on day 1 (data collection day) with prescribed AFO

  8. Knee angle

    Average knee joint angle at midstance (degrees)

    Time frame: Assessed on day 1 (data collection day) with Smart AFO

  9. Knee power

    Average knee joint power at foot flat after initial contact (Newton-meters/second)

    Time frame: Assessed on day 1 (data collection day) with prescribed AFO

  10. Knee power

    Average knee joint power at foot flat after initial contact (Newton-meters/second)

    Time frame: Assessed on day 1 (data collection day) with Smart AFO

  11. Ankle dorsiflexion

    Average ankle joint angle during midswing (degrees)

    Time frame: Assessed on day 1 (data collection day) with prescribed AFO

  12. Ankle dorsiflexion

    Average ankle joint angle during midswing (degrees)

    Time frame: Assessed on day 1 (data collection day) with Smart AFO

Secondary outcomes

  1. Stride length

    Average stride length of steps (meters)

    Time frame: Assessed on day 1 (data collection day) with prescribed AFO

  2. Stride length

    Average stride length of steps (meters)

    Time frame: Assessed on day 1 (data collection day) with Smart AFO

07

Study locations

2 of 3 sites recruiting
  • Becker Orthopedic
    Troy, Michigan 48083, United States
    Recruiting
  • University of Utah
    Salt Lake City, Utah 84108, United States
    Active, not recruiting
  • Orthocare Innovations, LLC
    Edmonds, Washington 98020, United States
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 10, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05619484
Lead sponsor
Orthocare Innovations, LLC
Collaborators
Becker Orthopedic, University of Utah
Responsible party
Sponsor
First posted
Nov 17, 2022
Start date
Aug 15, 2022
Primary completion
Aug 31, 2024 (estimated)
Completion
Aug 31, 2024 (estimated)
Last update
Oct 10, 2023

Study contacts

Adam Arabian
Contact
arabian@orthocareinnovations.com
1-425-771-0797

Oversight

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

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