Comparative Study Between Hyperbaric Therapy and Intravesical Dimethyl Sulfoxide Instillation for Interstitial Cystitis

April 4, 2011 updated by: Assaf-Harofeh Medical Center

Comparison Between Hyperbaric Oxygen Therapy (HBOT) and Intravesical Dimethyl Sulfoxide (DMSO) Instillation for the Treatment of Interstitial Cystitis - a Prospective, Randomized Cross-over Trial

The purpose of this study is to compare the efficacy of hyperbaric oxygen therapy (HBOT) to intravesical Dimethyl Sulfoxide (DMSO) instillation for the treatment of patients who suffers from Interstitial Cystitis / Painful bladder syndrome.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Interstitial cystitis / painful bladder syndrome (IC/PBS) presents as a pelvic pain condition associated with urinary urgency and frequency. These symptoms impair significantly the patient's quality of life. The etiology is yet not obvious. The current acceptable theory is injury or dysfunction of the Mucus (Glycosaminoglycans) layer that covers the inner surface of the urinary bladder. Abnormal diffusion of toxins from the urine to the walls of the bladder leads to inflammation, pain and scarring.

Many types of treatments were described but most of them were not evaluated in well designed randomized controlled studies. For now, there is no one single treatment that gives good outcome to every patient. Therefore, the treatment of patients with IC/PBS is challenging. In this study, we will compare the efficacy of hyperbaric oxygen therapy (HBOT) to intravesical dimethyl sulfoxide (DMSO) instillation for the treatment of patients who suffers from IC/PBS.

Patients with IC (NIDDK criteria) will be randomized to have either DMSO instillation or HBOT.

Before and after treatments the patients will fill out questionnaires (O'Leary-Sant Interstitial Cystitis Symptom and Problem Index), visual analogue scale for pain and bladder diaries. In addition, urodynamics will be performed before and after treatments. In case of incomplete symptoms remission, patients will be crossed over to have the other treatment.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
60

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Israel
      • Zeriffin, Israel, 70300
        • Recruiting
        • Assaf Harofe Medical Center
        • Contact:
        • Contact:

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 85 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • NIDDK diagnosis of interstitial cystitis

Exclusion Criteria:

  • Previous treatment of hyperbaric therapy
  • Contraindication for hyperbaric therapy (mid-ear pathology, abnormal chest X-ray, Claustrophobia, pregnancy

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

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Intravesical DMSO instillation
50 mls of 50% DMSO instilled once a week to the urinary bladder for 12 consecutive weeks.
Drug: DMSO
50 mls of 50% DMSO instilled once a week to the urinary bladder for 12 consecutive weeks.
Other Names:
  • dimethyl sulfoxide
Experimental: Hyperbaric Oxygen Therapy (HBOT)
Overall 60 treatments (5 days per weeks for 12 weeks). 90 minutes every session. Pressure of 2 atm. Inhalation of 100% oxygen.
Other: Hyperbaric Oxygen Therapy
60 treatments (12 weeks - 5 days a week) of hyperbaric (pressure of 2 atmospheres) with 100% oxygen inhalation.
Other Names:
  • Hyperbaric chamber
  • HBOT
  • Hyperbaric therapy

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Subjective improvement will be assessed by several questionnaires: the Oleary Sant symptom index score, bladder diary, 1-10 visual analogue scale for pain, PSQ4 questionnaire
Time Frame: 1-4 weeks post treatment
1-4 weeks post treatment

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Objective improvement will be assessed by urodynamic test. The following parameters will be addressed: cystometric capacity, 1st sensation, normal sensation
Time Frame: 1-4 weeks post treatment
1-4 weeks post treatment

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Assaf-Harofeh Medical Center

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Kobi Stav, MD, Assaf Harofe Medical Center

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

Helpful Links

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2010

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 1, 2015

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 1, 2015

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 10, 2010

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 15, 2010

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 17, 2010

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 5, 2011

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 4, 2011

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2010

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 04/10

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