Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT04023045 · ClinicalTrials.gov registry record · NA
Assist-Knee: Energy-Harvesting Knee Prosthesis
A NA study of Transfemoral Amputation and Artificial Limbs, sponsored by Orthocare Innovations.
- Completed
- Registry status
- NA
- Development phase
- 3
- Enrollment target
- 1
- Study location
NCT04023045: Completed NA study of Transfemoral Amputation and Artificial Limbs, sponsored by Orthocare Innovations.
NCT04023045 is a NA study of Transfemoral Amputation and Artificial Limbs that has completed, run by Orthocare Innovations. The registered enrollment target is 3 participants, below the 28-participant average among 8 other Transfemoral Amputation trials with a reported enrollment target (89% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04023045, a NA study of Transfemoral Amputation and Artificial Limbs, has completed, sponsored by Orthocare Innovations.
- COMPLETED
- Registry status
- NA
- Development phase
- 3 participants
- Enrollment target
- 1
- Study location
Study Summary
The purpose of this research is to validate the Assist-Knee design and function by collecting pilot data during the stand-to-sit-to-stand transition in transfemoral prosthesis users when using the Assist-Knee to harvest energy and return energy .
Primary Outcome
The amount of time, measured in seconds, needed by the subject to complete the sit-to-stand transition. At least four trials of the sit-to-stand maneuver were collected for each participant using a motion analysis system. Average and standard deviation of the time to complete the sit-to-stand transition were calculated for each participant (each participant served as their own control in this pilot study). The start of the transition was determined by participant initiation; the end of the trans
Conditions Studied
Interventions
- DEVICE Assist-Knee
- DEVICE Habitual Prosthesis
Study Locations (1)
Washington
- Orthocare Innovations, LLC - Edmonds
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 3 participants |
| Start Date | 2019-07-15 |
| Est. Completion | 2020-02-26 |
| Phase | NA |
What the finished NCT04023045 record still lists
NCT04023045 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 3 participants, a relatively small participant target, below the 28-participant average among 8 other Transfemoral Amputation trials with a reported enrollment target (89% lower).
The record links to 2 conditions, with Transfemoral Amputation appearing as the primary indexed condition, and to 2 interventions - of which Assist-Knee is the first listed.
NCT04023045 reports a single indexed study location in Washington.
Frequently Asked Questions
What is clinical trial NCT04023045 about?
NCT04023045 is a clinical study titled "Assist-Knee: Energy-Harvesting Knee Prosthesis". The purpose of this research is to validate the Assist-Knee design and function by collecting pilot data during the stand-to-sit-to-stand transition in transfemoral prosthesis users when using the Assist-Knee to harvest energy and return energy .
What is the current status of trial NCT04023045?
This trial is currently completed. It is a NA study. The enrollment target is 3 participants. The study started on 2019-07-15. Estimated completion is 2020-02-26.
What conditions does trial NCT04023045 study?
This clinical trial studies the following conditions: Transfemoral Amputation, Artificial Limbs.
What interventions are being tested in trial NCT04023045?
The interventions under investigation include: Assist-Knee (DEVICE), Habitual Prosthesis (DEVICE).
Who is sponsoring clinical trial NCT04023045?
This trial is sponsored by Orthocare Innovations, which has 4 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT04023045 being conducted?
This trial has 1 study location across Washington. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
Similar trials for Transfemoral Amputation
Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.
Where NCT04023045's enrollment target sits among peer trials
3 9th of 8 the lowest of 8 other Transfemoral Amputation trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Transfemoral Amputation trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
-
Metabolic Cost of Walking With Passive vs. Powered Prosthetic Knees Among Persons With Limb Loss
RECRUITING · NA
-
Evaluation of a Neural-Controlled Powered Prosthesis Across Diverse Real-World Tasks
RECRUITING · NA
-
A Biomechanical Evaluation of the Ossur Power Knee in Persons With Transfemoral Amputation
RECRUITING · NA
-
Active Knee Prosthesis Study
ACTIVE NOT RECRUITING · NA
-
Transfemoral Osseointegrated Prosthesis Limb-Load Symmetry Training
ACTIVE NOT RECRUITING · NA
-
Sub-Ischial Socket for Transfemoral Amputation and Lower Mobility
COMPLETED · NA
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar registry start date
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia
- NCT07125183 · started 2026-12 · Phase 2
Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma
- NCT07292298 · started 2026-11 · Phase 2
Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates
- NCT04263285 · started 2026-10 · NA
Treatment of Depression Post-SCI