Diabetic Foot UlcersNCT00463671
Hyperbaric Oxygen, Oxidative Stress, NO Bioavailability and Tissue Oxygenation
A study testing N-acetylcysteine in people with Diabetic Foot Ulcers, run by Assaf-Harofeh Medical Center at 1 site in Israel.
Trial summary
Hyperbaric oxygen therapy (HBOT) increases tissue oxygenation and serves as an adjunct therapy for diabetic wounds. However, some patients have insufficient increase or even paradoxical decrease in tissue O2 due to vasoconstriction. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Diabetic Foot Ulcers
- What is being tested?
- N-acetylcysteine
- How many people
- 50 participants
- Where
- 1 siteIsrael
- Study dates
- Dec 2003to Sep 2005
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- diabetic patients, aged 18 years or older, with non-healing foot ulcers
Who cannot join
- Patients with macrovascular disease amenable for revascularization with more than 70% obstruction in femoral artery (evaluated by US doppler) were excluded from the study. Similarly, patients with a documented allergy to NAC, liver cirrhosis or those receiving NAC for other indications were excluded. Finally, patients with chest pathology incompatible with pressure changes, patients with inner ear disease, or those suffering from claustrophobia were excluded.
Trial locations and contacts
1 site in 1 country.
Israel1 site
The Institute of Hyperbaric Medicine and Wound Care Clinic
Tsrifin, 70300
About this study
Official title: The Relation Between Hyperbaric Oxygen, Oxidative Stress, NO Bioavailability and Tissue Oxygenation in Diabetic Patients Suffering From Foot Ulcers
Hyperbaric oxygen therapy (HBOT) increases tissue oxygenation and serves as an adjunct therapy for diabetic wounds. However, some patients have insufficient increase or even paradoxical decrease in tissue O2 due to vasoconstriction. The aim of the present study was to investigate the pathophysiology responsible for the different consequences of HBOT and to evaluate the effect of N-acetylcysteine (NAC) on these changes.
Methods: Prospective, randomized, cross-over trial including fifty diabetic patients with non-healing ulcers. All patients had two HBOT (100%oxygen, 2ATA) with NAC at the first or the second evaluation. At the beginning and at the end of each evaluation, ulcer oxygenation and plasma levels of malondialdehyde (MDA), total anti-oxidant status (TAOS) and nitric oxide (NO) were measured. Patients with ulcer oxygenation above 200mmHg, were subjected to complete HBOT protocol.
- Conditions
- Diabetic Foot Ulcers
- Being tested
- N-acetylcysteine
- Medical subject headings
- Diabetic Foot
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
N-acetylcysteineDrug
What is being measured
The primary outcome is the main question the study is designed to answer.
The aim of the present study was to investigate whether changes in oxidative stress and NO bioavailability are responsible for the different effects of HBOT on tissue oxygenation in diabetic patients suffering from foot ulcers.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Apr 2007 (estimated)
- Study startDec 2003
- Study completionSep 2005
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Diabetic Foot UlcersStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Enrolment
- 50 participants
Sponsor and investigators
- Lead sponsor
- Assaf-Harofeh Medical Center
- Sponsor type
- Other government
- Investigators
- Shai Efrati, MD, Principal investigator, Assaf-Harofeh Medical Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00463671
- Sponsor's protocol ID
- HBO2/03
- Status last verified
- May 2007
- First submitted
- 18 Apr 2007
- Last updated
- 17 Oct 2008
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 17 Oct 2008. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Relation Between Hyperbaric Oxygen, Oxidative Stress, NO Bioavailability and Tissue Oxygenation in Diabetic Patients Suffering From Foot Ulcers
- ClinicalTrials.gov ID
- NCT00463671
- Acronym / sponsor ID
- HBO2/03
- Conditions
- Diabetic Foot Ulcers
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 50 participants
- Lead sponsor
- Assaf-Harofeh Medical CenterOther government
- Study start
- Dec 2003
- Study completion
- Sep 2005 (actual)
- First posted
- 20 Apr 2007 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Hyperbaric oxygen therapy (HBOT) increases tissue oxygenation and serves as an adjunct therapy for diabetic wounds. However, some patients have insufficient increase or even paradoxical decrease in tissue O2 due to vasoconstriction. The aim of the present study was to investigate the pathophysiology responsible for the different consequences of HBOT and to evaluate the effect of N-acetylcysteine (NAC) on these changes.
Methods: Prospective, randomized, cross-over trial including fifty diabetic patients with non-healing ulcers. All patients had two HBOT (100%oxygen, 2ATA) with NAC at the first or the second evaluation. At the beginning and at the end of each evaluation, ulcer oxygenation and plasma levels of malondialdehyde (MDA), total anti-oxidant status (TAOS) and nitric oxide (NO) were measured. Patients with ulcer oxygenation above 200mmHg, were subjected to complete HBOT protocol.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- diabetic patients, aged 18 years or older, with non-healing foot ulcers
Key exclusion criteria (1 listed)
- Patients with macrovascular disease amenable for revascularization with more than 70% obstruction in femoral artery (evaluated by US doppler) were excluded from the study. Similarly, patients with a documented allergy to NAC, liver cirrhosis or those receiving NAC for other indications were excluded. Finally, patients with chest pathology incompatible with pressure changes, patients with inner ear disease, or those suffering from claustrophobia were excluded.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| N-acetylcysteine | Drug | – |
Primary outcome
The aim of the present study was to investigate whether changes in oxidative stress and NO bioavailability are responsible for the different effects of HBOT on tissue oxygenation in diabetic patients suffering from foot ulcers.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Oct 2008.
Related trials for Diabetic Foot Ulcers
Not yet recruiting
Better Care Closer to Home: Enhancing Primary and Community Care
Diabetic Foot Disease, Recurrence
Not yet recruiting
Comparison of Negative Pressure Wound Therapy Versus Moist Wound Dressing in Diabetic Foot Ulcer Patients
Diabetic Foot Ulcer
RecruitingObservational study
Efficacy and Safety of a Nitric Oxide Generating Dressing for Diabetic Foot Ulcers (ONWARD)
Diabetic Foot Ulcers (DFUs)
RecruitingPhase 2
Evaluation of the Safety and Efficacy of Live ASCs in the Treatment of Diabetic Foot Syndrome.
Diabetic Foot Ulcer
RecruitingObservational study
Factors Associated With an Evolution in the Quality of Life of Diabetic Patients With Chronic, Wound-free Charcot Foot
Charcot Joint of Foot, Osteoarthropathy
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Shai Efrati, MD principal investigator
Assaf-Harofeh Medical Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing N-acetylcysteine in people with Diabetic Foot Ulcers, run by Assaf-Harofeh Medical Center at 1 site in Israel.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 17 Oct 2008. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Israel. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
The aim of the present study was to investigate whether changes in oxidative stress and NO bioavailability are responsible for the different effects of HBOT on tissue oxygenation in diabetic patients suffering from foot ulcers.. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Oct 2008.