Long Term Results of the Use of Oxybutynin for the Treatment of Hyperhidrosis

October 7, 2013 updated by: Nelson Wolosker, Hospital Israelita Albert Einstein

Retrospective Evaluation of Long Term Use of Oxybutynin in the Pharmacological Treatment of Primary Hyperhidrosis

Evaluate the long term efficacy and side effects of oxybutynin in the treatment of hyperhidrosis.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This retrospective study aims to evaluate the medical charts of patients who were treated with oxybutynin for at least six months for primary hyperhidrosis. The investigators variables of interest are: (1) quality of life before pharmacological therapy and after six weeks, (2)self-perception of improvement in hyperhidrosis after six weeks of treatment and on last visit (whenever this occur, as long as this happens after six months), (3) side effects related to drug use.

Study Type

Observational

Enrollment (Actual)

1100

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • São Paulo, Brazil, 05652000
        • Hospital Israelita Albert Einstein

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

5 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Out-patients on two tertiary hospitals (Hospital Israelita Albert Einstein and Hospital das Clínicas - HCFMUSP) who seeked medical attention because of hyperhidrosis.

Description

Inclusion Criteria:

  • Primary hyperhidrosis
  • At least 180 days of treatment with oxybutynin

Exclusion Criteria:

  • Incomplete medical chart
  • Patients with glaucoma

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Retrospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Axillary hyperhidrosis
Patients whose major complaint is excessive sweating in the axillary region (i.e, sweating in the armpit). Patients that also have hyperhidrosis - but that are less bothersome on other sites (e.g., palmar hyperhidrosis) are not excluded, but are accounted for accordingly to their main complaint.
All patients are treated with oxybutynin for hyperhidrosis. Usual maintenance dose is 10mg/day, but dose may vary according to weight, efficacy and side effects. Our standard protocol starts with 2.5mg/day in the first 7 days, progresses to 5mg/day for 14 days and then reaches the usual maintenance dose of 10mg/day afterwards.
Palmar hyperhidrosis
Patients whose major complaint is excessive sweating in the palmar region (i.e, sweating in the hands). Patients that also have hyperhidrosis - but that are less bothersome on other sites (e.g., axillary hyperhidrosis) are not excluded, but are accounted for accordingly to their main complaint.
All patients are treated with oxybutynin for hyperhidrosis. Usual maintenance dose is 10mg/day, but dose may vary according to weight, efficacy and side effects. Our standard protocol starts with 2.5mg/day in the first 7 days, progresses to 5mg/day for 14 days and then reaches the usual maintenance dose of 10mg/day afterwards.
Plantar hyperhidrosis
Patients whose major complaint is excessive sweating in the plantar region (i.e, sweating in the feet). Patients that also have hyperhidrosis - but that are less bothersome on other sites (e.g., axillary hyperhidrosis) are not excluded, but are accounted for accordingly to their main complaint.
All patients are treated with oxybutynin for hyperhidrosis. Usual maintenance dose is 10mg/day, but dose may vary according to weight, efficacy and side effects. Our standard protocol starts with 2.5mg/day in the first 7 days, progresses to 5mg/day for 14 days and then reaches the usual maintenance dose of 10mg/day afterwards.
Cranio-facial hyperhidrosis
Patients whose major complaint is excessive sweating in the cranio-facial region (i.e, sweating in the face). Patients that also have hyperhidrosis - but that are less bothersome on other sites (e.g., axillary hyperhidrosis) are not excluded, but are accounted for accordingly to their main complaint.
All patients are treated with oxybutynin for hyperhidrosis. Usual maintenance dose is 10mg/day, but dose may vary according to weight, efficacy and side effects. Our standard protocol starts with 2.5mg/day in the first 7 days, progresses to 5mg/day for 14 days and then reaches the usual maintenance dose of 10mg/day afterwards.
Other sites hyperhidrosis
Patients whose major complaint is excessive sweating in other sites of the body (e.g., on the chest, on the abdomen). Patients that also have hyperhidrosis - but that are less bothersome on other sites previously grouped (e.g., axillary hyperhidrosis) are not excluded, but are accounted for accordingly to their main complaint.
All patients are treated with oxybutynin for hyperhidrosis. Usual maintenance dose is 10mg/day, but dose may vary according to weight, efficacy and side effects. Our standard protocol starts with 2.5mg/day in the first 7 days, progresses to 5mg/day for 14 days and then reaches the usual maintenance dose of 10mg/day afterwards.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Quality of life
Time Frame: 1 day before treatment
Evaluate the Quality of life (using a standardized questionnaire for hyperhidrotic patients) before pharmacological treatment
1 day before treatment
Quality of life
Time Frame: Forty-two days after treatment
Evaluate the Quality of life (using a standardized questionnaire for hyperhidrotic patients) after 42 days of treatment
Forty-two days after treatment

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Perception of improvement in excessive sweating
Time Frame: After 42 days of treatment
We want to analyze the patient's self perception (grades 0 to 10) of amelioration in sweating after forty-two days of treatment
After 42 days of treatment
Perception of improvement in excessive sweating
Time Frame: 1 day (On the last medical visit)
We want to analyze the patient's self perception (grades 0 to 10) of amelioration in sweating on the last medical visit (whenever this happens).
1 day (On the last medical visit)

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Side effects in the use of oxybutynin for hyperhidrosis
Time Frame: After 42 days of treatment
Assess the side effects that have been reported on patient's charts, such as: dry mouth, constipation, headache, glaucoma, bowel obstruction and any other side effect reported
After 42 days of treatment
Side effects in the use of oxybutynin for hyperhidrosis
Time Frame: 1 day )On the last medical visit)
Assess the side effects that have been reported on patient's charts, such as: dry mouth, constipation, headache, glaucoma, bowel obstruction and any other side effect reported on the last medical return of the patient
1 day )On the last medical visit)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Nelson Wolosker, PhD, MD, Hospital Israelita Albert Einstein

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 2007

Primary Completion (Actual)

September 1, 2013

Study Completion (Actual)

September 1, 2013

Study Registration Dates

First Submitted

August 16, 2013

First Submitted That Met QC Criteria

October 7, 2013

First Posted (Estimate)

October 8, 2013

Study Record Updates

Last Update Posted (Estimate)

October 8, 2013

Last Update Submitted That Met QC Criteria

October 7, 2013

Last Verified

September 1, 2013

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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