Transdermal Administration of a Prokinetic Agent for Bowel Evacuation in Persons With SCI
| Status: | Completed |
|---|---|
| Conditions: | Hospital, Orthopedic |
| Therapuetic Areas: | Orthopedics / Podiatry, Other |
| Healthy: | No |
| Age Range: | 18 - 75 |
| Updated: | 3/8/2017 |
| Start Date: | February 2013 |
| End Date: | December 2016 |
A Novel Application of Iontophoresis in the Transcutaneous Delivery of a Prokinetic Agent for the Promotion of Bowel Evacuation
Bowel care (BC) is a time-consuming and cumbersome activity of daily living for most
individuals with SCI. Previous studies have reported that the average time to complete a BC
routine is 45 minutes; 10-20% of SCI individuals report BC routines lasting for more than 1
hour. In past studies, the investigators have shown that a medication called neostigmine
(NEO) combined with a medication called glycopyrrolate (GLY) can increase bowel activity and
thus, promote bowel movement. The investigators have successfully used this medication with
traditional and novel methods of colonoscopic preparations, and have shown that it improves
the quality of these preparations. In this Phase I, proof of concept pilot study, the
investigators propose to study the effectiveness of this medicine when it is delivered
through the skin. In order to make delivery more efficient, the investigators will be using
a technique called iontophoresis, which uses a mild electric current to drive the drug
through the surface of the skin. The instrument includes an electrode containing the active
agent (delivers charge) and an oppositely charged electrode (receives charge) which will be
placed on the surface of the skin. The study design will consist of a screening visit to
determine each individual's response to a previously established IV dose of NEO and GLY,
followed by a dose titration study (two visits) of iontophoresed NEO and GLY. Study visits
will be separated by no less than 2 days and no more than 14 days.
If this delivery method is shown to be effective, it may represent a way to vastly improve
the clinical utility of this medication by allowing for needle-free self administration, and
expanding the clinical indication to routine, at home bowel care.
individuals with SCI. Previous studies have reported that the average time to complete a BC
routine is 45 minutes; 10-20% of SCI individuals report BC routines lasting for more than 1
hour. In past studies, the investigators have shown that a medication called neostigmine
(NEO) combined with a medication called glycopyrrolate (GLY) can increase bowel activity and
thus, promote bowel movement. The investigators have successfully used this medication with
traditional and novel methods of colonoscopic preparations, and have shown that it improves
the quality of these preparations. In this Phase I, proof of concept pilot study, the
investigators propose to study the effectiveness of this medicine when it is delivered
through the skin. In order to make delivery more efficient, the investigators will be using
a technique called iontophoresis, which uses a mild electric current to drive the drug
through the surface of the skin. The instrument includes an electrode containing the active
agent (delivers charge) and an oppositely charged electrode (receives charge) which will be
placed on the surface of the skin. The study design will consist of a screening visit to
determine each individual's response to a previously established IV dose of NEO and GLY,
followed by a dose titration study (two visits) of iontophoresed NEO and GLY. Study visits
will be separated by no less than 2 days and no more than 14 days.
If this delivery method is shown to be effective, it may represent a way to vastly improve
the clinical utility of this medication by allowing for needle-free self administration, and
expanding the clinical indication to routine, at home bowel care.
In this Phase I, proof of concept pilot study, we propose to study the safety and efficacy
of transcutaneous neostigmine and glycopyrrolate facilitated by iontophoresis. The study
design will consist of a screening visit to determine each individual's response to a
previously established IV dose of NEO and GLY, followed by a dose titration study (two
visits) of iontophoresed NEO and GLY. Study visits will be separated by no less than 2 days
and no more than 14 days.
Screening Bowel Evacuation Study, Part 1: Visit 1 (30 Subjects with SCI):
A previously determined efficacious dose of IV neostigmine (0.03 mg/kg IV NEO) with
glycopyrrolate (0.006 mg/kg GLY) will be administered during the first study visit to
determine subject responsiveness to the known effective mode of administration. Irregardless
of excess weight, the maximum dose of neostigmine and glycopyrrolate (NG) is limited to 10.0
mg and GLY to 2.0 mg. If the subject responds to the IV NEO, subsequent study visits to
determine the effective dose of transcutaneous NEO and GLY will be performed. Subjects will
be asked to arrive at the Spinal Cord Research Center at the James J. Peters Veteran Affairs
Medical Center (JJP VAMC) (Room 7A-13) on the day of their scheduled study visits. Heart
rate (continuous ecg), blood pressure, airway resistance (Impulse Oscillometry, IOS), signs
and symptoms, and artificial bowel evacuation will be monitored throughout the study visit.
Subjects will remain in this position until a bowel movement occurs, or for the next 60
minutes of the study. Subjects will be monitored for a minimum of 1.5 hours post drug, and
until they reach ± 10% of their baseline heart rate (continuous 3 lead ECG) and airway
caliber as measured by IOS.
Transcutaneous Bowel Evacuation Study, Part 2: Visits 2-3 (up to 25Subjects with SCI):
The same subjects who participated in Visit 1 who demonstrated a response to the IV NEO and
GLY will participate in visits 2-3. Due to probable inter-subject variability of drug
response to the doses of neostigmine being administered, subjects will receive increasing
doses of iontophoresed neostigmine on separate days over 2 study visits to determine the
most effective average dose. We will administer the transcutaneous NEO and GLY facilitated
by iontophoresis. The dosages for Visits 2-3 are as follows: Visit 2: 0.05 mg/kg NEO and
0.01 mg/kg GLY, Visit 3: 0.07 mg/kg NEO and 0.14 mg/kg GLY. Irregardless of excess weight,
the maximum dose of NG is limited to 10.0 mg and GLY to 2.0 mg. Heart rate (continuous ecg),
blood pressure, airway resistance (Impulse Oscillometry, IOS) signs and symptoms, and
artificial bowel evacuation will be monitored throughout the study visit as described in
Table 1. Subjects will be asked to arrive at the Spinal Cord Research Center at the JJP VAMC
(Room 7A-13) on the day of their scheduled study visits. Subjects will remain in this
position until a bowel movement occurs, or for the next 90 minutes of the study. Subjects
will be monitored for a minimum of 90 minutes post drug, and until they reach ± 10% of their
baseline heart rate (continuous 3 lead ECG) and airway caliber as measured by IOS.
of transcutaneous neostigmine and glycopyrrolate facilitated by iontophoresis. The study
design will consist of a screening visit to determine each individual's response to a
previously established IV dose of NEO and GLY, followed by a dose titration study (two
visits) of iontophoresed NEO and GLY. Study visits will be separated by no less than 2 days
and no more than 14 days.
Screening Bowel Evacuation Study, Part 1: Visit 1 (30 Subjects with SCI):
A previously determined efficacious dose of IV neostigmine (0.03 mg/kg IV NEO) with
glycopyrrolate (0.006 mg/kg GLY) will be administered during the first study visit to
determine subject responsiveness to the known effective mode of administration. Irregardless
of excess weight, the maximum dose of neostigmine and glycopyrrolate (NG) is limited to 10.0
mg and GLY to 2.0 mg. If the subject responds to the IV NEO, subsequent study visits to
determine the effective dose of transcutaneous NEO and GLY will be performed. Subjects will
be asked to arrive at the Spinal Cord Research Center at the James J. Peters Veteran Affairs
Medical Center (JJP VAMC) (Room 7A-13) on the day of their scheduled study visits. Heart
rate (continuous ecg), blood pressure, airway resistance (Impulse Oscillometry, IOS), signs
and symptoms, and artificial bowel evacuation will be monitored throughout the study visit.
Subjects will remain in this position until a bowel movement occurs, or for the next 60
minutes of the study. Subjects will be monitored for a minimum of 1.5 hours post drug, and
until they reach ± 10% of their baseline heart rate (continuous 3 lead ECG) and airway
caliber as measured by IOS.
Transcutaneous Bowel Evacuation Study, Part 2: Visits 2-3 (up to 25Subjects with SCI):
The same subjects who participated in Visit 1 who demonstrated a response to the IV NEO and
GLY will participate in visits 2-3. Due to probable inter-subject variability of drug
response to the doses of neostigmine being administered, subjects will receive increasing
doses of iontophoresed neostigmine on separate days over 2 study visits to determine the
most effective average dose. We will administer the transcutaneous NEO and GLY facilitated
by iontophoresis. The dosages for Visits 2-3 are as follows: Visit 2: 0.05 mg/kg NEO and
0.01 mg/kg GLY, Visit 3: 0.07 mg/kg NEO and 0.14 mg/kg GLY. Irregardless of excess weight,
the maximum dose of NG is limited to 10.0 mg and GLY to 2.0 mg. Heart rate (continuous ecg),
blood pressure, airway resistance (Impulse Oscillometry, IOS) signs and symptoms, and
artificial bowel evacuation will be monitored throughout the study visit as described in
Table 1. Subjects will be asked to arrive at the Spinal Cord Research Center at the JJP VAMC
(Room 7A-13) on the day of their scheduled study visits. Subjects will remain in this
position until a bowel movement occurs, or for the next 90 minutes of the study. Subjects
will be monitored for a minimum of 90 minutes post drug, and until they reach ± 10% of their
baseline heart rate (continuous 3 lead ECG) and airway caliber as measured by IOS.
Inclusion Criteria:
- Incomplete or complete SCI,
- Tetraplegia or paraplegia,
- Excess time for bowel evacuation (> 60 minutes per bowel training session)
Exclusion Criteria:
- Previous adverse reaction or hypersensitivity to electrical stimulation,
- Known sensitivity to neostigmine or glycopyrrolate,
- Do not require additional bowel care or have "normal bowel function",
- Blockage Bowel or Bladder,
- Myocardial infarction in the past 6 months,
- Blood pressure of 160/100mmHg or higher with or without being on 3 or more different
classes of anti-hypertensive medications
- Organ damage (heart & kidney damage) and/or transient ischemic attack (TIA)-
cerebrovascular accident (CVA) as a result of hypertension
- Known past history of coronary artery disease or bradyarrythmia,
- Active respiratory disease,
- Known history of asthma during lifetime or recent (within 3 months) respiratory
infections.
- Adrenal insufficiency,
- Pregnancy or potential for pregnancy,
- Lactating/nursing females,
- Slow heart rate (<45 bpm)
- Use of any antibiotic in the past 7 days,
- Use of medications known to affect the respiratory system,
- Use of medications known to alter airway caliber,
- Concurrent participation in other clinical trials (within 30 days).
We found this trial at
1
site
Bronx, New York 10468
Principal Investigator: Mark A Korsten, MD
Phone: 718-584-9000
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