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TerminatedNCT02332187Updated Mar 2, 2022Results posted

Effect of All-Stim 2 Quadriceps Treatments on Limb Muscle Strength In Mechanically Ventilated Patients

An interventional study of Active electrical stimulation using an All Stim stimulator and Sham electrical stimulation using an All Stim stimulator in Weakness, sponsored by Gerald Supinski. Terminated at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-03-02.

Sponsored by Gerald Supinski · Not applicable, Interventional, and Treatment

Why this study was terminated
No longer have resources to complete this work.

From the registry’s dates

  • Registered 1 year 11 months after the study started (first participant enrolled Jan 2013, registered Dec 2014).
Phase
Not applicable
Study type
Interventional
Enrollment
15
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Patients that are on mechanical ventilators in medical intensive care units (MICU) have extremely weak leg muscles. Currently there is no treatment to prevent or reverse this weakness. Treatments with a thigh muscle stimulator, called an All Stim 2, can improve leg muscle strength and help patients regain leg function after knee surgery. The purpose of the present study is to determine if treatments with the All Stim 2 device can also improve leg muscle strength in patients on mechanical ventilation.

Read the detailed description

The objective for this study is to determine if daily exercise using All-Stim 2 stimulation of quadriceps muscles will increase leg strength and improve outcomes (duration of hospitalization, long term mobility, long term disability) for mechanically ventilated MICU patients. The investigators plan to randomize patients accepted into this protocol to administration of either sham exercise (i.e. placement of All-Stim 2 units on the legs for 30 minutes a day without activation of the electrical stimulation program) or active exercise (placement of All-Stim 2 electrodes on both legs and stimulating quadriceps muscles to rhythmically contract for 30 minutes a day). The two groups (sham and active exercise) will be treated for 30 minutes a day for seven days. The effects of exercise on quadriceps strength will be assessed by measuring quadriceps force generation (QuadTw) in response to magnetic stimulation of the femoral nerves. The QuadTw assessment will be made immediately before institution of sham or active exercise and will repeated one day after the conclusion of the seven day training regimen. Chart review and patient follow-up will be used to determine if this treatment regimen also has an impact on clinical outcome measures, i.e. duration of hospitalization.

02

Conditions studied

  • Weakness
03

In context

Lead sponsor

Gerald Supinski is the lead sponsor of 3 studies on the registry; none 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

  • Adult patients requiring mechanical ventilation for more than 48 hours
  • Respiratory failure present

Exclusion criteria

Exclusion Criteria:

  • The physician caring for the patient determines that the patient is too unstable
  • Use of high dose pressors (more than 15 mcg/min of norepinephrine or more than 15 mg/kg/min of dopamine)
  • Use of more than 80% FiO2 (fractional concentration of oxygen) or more than 15 cm H2O (water) of PEEP (positive end expiratory pressure)
  • Presence of a cardiac pacemaker or implanted defibrillator
  • Use of neuromuscular blocking agents within the 48 hours preceding testing
  • History of a preexisting neuromuscular disease
  • Presence of profound and uncorrectable hypokalemia (less than 2.5) or hypophosphatemia (less than 1.0)
  • Pregnancy
  • If the patient is a prisoner
  • If the patient is institutionalized
  • If it is thought that the patient will have care withdrawn within 7 days
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
15 participants (actual)

Study arms

  • Sham comparator
    Sham electrical stimulation

    The intervention will consist of sham electrical stimulation using an All Stim stimulator of each quadriceps leg muscle for 30 minutes per day for a total of 7 days.

    Device: Sham electrical stimulation using an All Stim stimulator

  • Active comparator
    Active electrical stimulation

    The intervention will consist of active electrical stimulation using an All Stim stimulator of each quadriceps leg muscle for 30 minutes per day for a total of 7 days.

    Device: Active electrical stimulation using an All Stim stimulator

Interventions

  • DeviceActive electrical stimulation using an All Stim stimulator

    This is an FDA approved stimulator that is used for strengthening the quadriceps muscle.

  • DeviceSham electrical stimulation using an All Stim stimulator

    With this intervention the All Stim unit is turned off and no electrical stimulation is provided.

06

What researchers measure

Primary outcomes

  1. Change in Quadriceps Muscle Strength

    The investigators will measure quadriceps leg strength before and after one week of either sham or active electrical stimulation of the quadriceps muscle.

    Time frame: Baseline and One week

Secondary outcomes

  1. Duration of Hospitilization

    The investigators will record the total time patients remain hospitilized after entry into the study.

    Time frame: Baseline to discharge in weeks, up to five weeks

07

Results

Posted Mar 2, 2022

Participant flow

Participant flow — Overall Study
MilestoneSham Electrical StimulationActive Electrical Stimulation
Started510
Completed37
Not completed23
Withdrew: Withdrawal by subject22
Withdrew: Adverse event01

Outcome measures

PrimaryChange in Quadriceps Muscle Strength

The investigators will measure quadriceps leg strength before and after one week of either sham or active electrical stimulation of the quadriceps muscle.

Time frame:
Baseline and One week
Reported as:
Mean · Newtons
Change in Quadriceps Muscle Strength
NewtonsSham Electrical StimulationActive Electrical Stimulation
Right quadricep-5.0 ± 5.82.6 ± 2.2
Left quadricep-6.1 ± 7.43.4 ± 3.6
SecondaryDuration of Hospitilization

The investigators will record the total time patients remain hospitilized after entry into the study.

Time frame:
Baseline to discharge in weeks, up to five weeks
Reported as:
Mean · weeks
Duration of Hospitilization
weeksSham Electrical StimulationActive Electrical Stimulation
Duration of Hospitilization4.6 ± 03.0 ± 0.7

Adverse events

Collected over Baseline to end of hospitalizations for all participants, up to five weeks.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Sham Electrical Stimulation0/5 (0%)0/5 (0%)0/5 (0%)
Active Electrical Stimulation1/10 (10%)1/10 (10%)0/10 (0%)
Most frequent serious events
Most frequent serious events
EventSham Electrical StimulationActive Electrical Stimulation
DeathRespiratory, thoracic and mediastinal disorders0/51/10

Baseline characteristics

Age, Continuous
Age, Continuous(years)Sham Electrical StimulationActive Electrical StimulationTotal
Mean58.4 ± 15.546.1 ± 15.550.2 ± 16.1
Sex: Female, Male
Sex: Female, Male(Participants)Sham Electrical StimulationActive Electrical StimulationTotal
Female5611
Male044
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Sham Electrical StimulationActive Electrical StimulationTotal
Hispanic or Latino000
Not Hispanic or Latino51015
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Sham Electrical StimulationActive Electrical StimulationTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American000
White51015
More than one race000
Unknown or Not Reported000
08

Study locations

1 site
  • Chandler Hospital
    Lexington, Kentucky 40536, United States
09

References and documents

Study documents

  • Protocol, analysis plan and consent form · Feb 17, 2021

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: Yes — We will provide de-identified data to other researchers on request. We cannot, however, under the terms of our IRB approval, provide primary data which contains information that may identify participants. Data will be released once the paper is accepted for publication.

Supporting information: Study protocol, Sap, Icf, Csr

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 2, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02332187
Lead sponsor
Gerald Supinski
Responsible party
Gerald Supinski (Professor, University of Kentucky) — Sponsor-investigator
First posted
Jan 6, 2015
Start date
Jan 3, 2013
Primary completion
May 5, 2017
Completion
May 5, 2017
Results posted
Mar 2, 2022
Last update
Mar 2, 2022

Study contacts

Gerald S Supinski, MD
principal investigator · University of Kentucky

Oversight

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

Not currently enrolling

This study is terminated, as verified in Feb 2022. You cannot join it, but the record below documents what was studied.

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