Clinical Trials Logo

Clinical Trial Details — Status: Terminated

Administrative data

NCT number NCT00781833
Other study ID # AMF CP-005
Secondary ID
Status Terminated
Phase N/A
First received October 27, 2008
Last updated January 19, 2012
Start date October 2008
Est. completion date June 2010

Study information

Verified date January 2012
Source The Alfred E. Mann Foundation for Scientific Research
Contact n/a
Is FDA regulated No
Health authority United States: Food and Drug Administration
Study type Interventional

Clinical Trial Summary

The primary aims of this study are to determine the safety of the RFM System (Alfred Mann Foundation, Santa Clarita, CA) in a patient with incomplete SCI and the effect of the RFM system on lower limb strength and spasticity. The secondary aim is to analyze any improvement in the participant's mobility.


Description:

Restoring mobility after spinal cord injury (SCI) is one of the most important goals of rehabilitation. Even for patients with partial lower limb motor function after SCI, many have limited mobility because of significant spasticity. Therapeutic electrical neuromuscular stimulation (TNS) has been used to improve muscle tone and strength and to enable walking and standing in patients with SCI. We propose to use the Radio Frequency Microstimulator (RFM) System, a new and novel implantable TNS system developed by the Alfred E. Mann Foundation, to improve muscle strength and reduce spasticity in a patient with incomplete SCI. The RFM System has several advantages over current TNS systems. The RFM implant devices are small enough (diameter 2.4 mm, length 16.7 mm) to be inserted using an incision approximately 5 mm long and have no lead wires passing through the skin since the microstimulator contains both the anode and cathode. Implanted RFM devices can be placed near multiple motor points and/or nerves and are controlled individually using radio frequency technology. Up to six (6) RFM devices will be inserted, two to three in each lower limb to provide stimulation to a patient's bilateral knee extensors (femoral nerve stimulation) and ankle dorsiflexors (peroneal nerve stimulation) to assess the effects on muscle strength, limb spasticity and patient mobility.


Recruitment information / eligibility

Status Terminated
Enrollment 1
Est. completion date June 2010
Est. primary completion date June 2010
Accepts healthy volunteers No
Gender Male
Age group 55 Years to 55 Years
Eligibility Inclusion Criteria:

- an incomplete C6 ASIA C (Central Cord) spinal cord injury

- lower motor function impaired and suffers from significant spasticity (Ashworth scale 4)

- able to ambulate approximately 10-20 feet with a rolling walker and minimal assistance

- has sufficient endurance to complete at least two 20-minute therapy sessions per day

- cognitive abilities are intact

Exclusion Criteria:

- psychiatric diagnosis

- medical contraindications

- history of bleeding disorders

- allergy to anesthesia

- acute or progressive disease

- active implantable device

Study Design

Endpoint Classification: Safety Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms


Intervention

Device:
Radio Frequency Microstimulator
Implantable peripheral muscle microstimulator, delivering controlled pulsatile stimulation to femoral nerves for knee extension and peroneal nerves for dorsiflexion.

Locations

Country Name City State
United States Walter Reed Army Medical Center Washington District of Columbia

Sponsors (2)

Lead Sponsor Collaborator
The Alfred E. Mann Foundation for Scientific Research Walter Reed Army Medical Center

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Adverse Events Throughout Yes
Primary Lower Limb Strength 6, 12, 24 weeks, 12, 24 months No
Primary Lower Limb Spasticity 6, 12, 24 weeks, 12, 24 months No
Secondary Mobility 6, 12, 24 weeks, 12, 24 months No
See also
  Status Clinical Trial Phase
Recruiting NCT02329652 - Multi-functional Neuroprosthetic System for Restoration of Motor Function in Spinal Cord Injury N/A