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Study to Examine the Effect of Coated Phenylephrine Suppositories on Anal Pressure in Healthy Subjects

An Open Label Study to Examine the Effect of Coated Phenylephrine Suppositories on Anal Pressure in Healthy Subjects

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00972998
Enrollment
8
Registered
2009-09-09
Start date
2009-09-30
Completion date
2009-12-31
Last updated
2009-12-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Incontinence

Keywords

anal sphincter pressure, phenyephrine

Brief summary

This is an open label, dose-finding study. Approximately 8 healthy subjects will be participating in this study. A screening will be used to determine subject suitability for inclusion in the trial. Subjects who meet all inclusion criteria and none of the exclusion criteria will enter a one day treatment period. During this period, 4 anal manometric studies will take place. Study medication (Coated Phenylephrine suppositories at various doses) will be administered at pre-determined intervals.

Detailed description

This is an open label, dose-finding study. Approximately 8 healthy subjects will be participating in this study. A screening will be used to determine subject suitability for inclusion in the trial. Within one week after the screening visit, subjects who meet all inclusion criteria and none of the exclusion criteria will enter a one day treatment period. During this period, 4 anal manometric studies will take place. Study medication (Coated Phenylephrine suppositories at various doses) will be administered at pre-determined intervals. During the study, blood samples will be obtained for plasma Phenylephrine analysis.After determining baseline resting anal pressure with a manometric test, coated Suppositories will be administered intra rectally. Subjects will take rectally a total of 1 Coated Suppository per study. 60, 120 and 240 minutes after the coated suppository insertion amnometric studies will be performed: The first 2 subjects in the study will receive 40 mg phenyephrine coated suppositories. If significant (\> 15%) increase in the resting anal pressure will occur with this dose, the rest of the study subjects will receive the same dose. If the raise in the resting anal pressure will not be significant AND no adverse events was observed, than the following subjects will receive 80 mg phenylehprine coated suppositories.

Interventions

DRUGPhenyephrine

Phenyephrine coated suppositories

Sponsors

RDD Pharma Ltd
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Signed written informed consent. * Male or female subjects 18 to 55 years of age.

Exclusion criteria

* Active or chronic disease. * In need of chronic use of medication, with the exception of birth control medications. * Currently uses medication for acute illness. * Has used, in the last four weeks, drugs that may affect blood coagulation, such as Aspirin, Warfarin, Sintrom, Enoxaparin, Nadroparin, Heparin, Clopidogrel, Ticlopidine. * Has upon physical examination a rectal deformation or signs of rectal disease such as fissure, bleeding hemorrhoids, fistula., infection or space occupying lesion. * Receipt of any investigational treatment (drug or device) within 90 days prior to screening.

Design outcomes

Primary

MeasureTime frame
The primary efficacy parameter is change in Resting Anal Pressure from baseline.8 hours

Secondary

MeasureTime frame
The ratio of change in anal pressure to change in heart rate.8 hours
The ratio of change in anal pressure to plasma Phenylephrine level.8 hours
The ratio of change in anal pressure to change in blood pressure.8 hours

Countries

Israel

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026