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AzTrials

InflammationPhase 1NCT00264186

Recombinant Human Superoxide Dismutase (rhSOD) and Vascular Reactivity

A Phase 1 study testing LPS 2 ng/kg intravenous (IV) bolus, rhSOD 82,000 IU (8.2 mg)/min intraarterially and Norepinephrine 60, 120, 240 pmol/min intraarterially over 5 min/dose level (two times; pre-dose and +3.5 hrs) in people with Inflammation, run by Medical University of Vienna at 1 site in Austria.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Inflammation is characterised by an increased risk for cardiovascular events. Dysfunction of the vascular endothelium caused by oxidative stress might provide a mechanistic link. Read more about this study

Who is it for?
Ages 18 to 45 years, men onlyHealthy volunteers can take part
Conditions the study is for
Inflammation
What is being tested?
LPS 2 ng/kg intravenous (IV) bolus, rhSOD 82,000 IU (8.2 mg)/min intraarterially and Norepinephrine 60, 120, 240 pmol/min intraarterially over 5 min/dose level (two times; pre-dose and +3.5 hrs)
Type of treatment
Injection or infusion
How many people
43 participants
Where
1 siteAustria
Study dates
Jun 2005to not given
Phase
Phase 1
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 to 45 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Men aged between 18 and 45 years
  • Nonsmokers
  • Body mass index between 15th and 85th percentile
  • Normal findings in medical history and physical examination unless the investigator considers an abnormality to be clinically irrelevant

Who cannot join

  • Regular use of medication, abuse of alcoholic beverages, or participation in a clinical trial in the 3 weeks preceding the study
  • Evidence of hypertension, pathologic hyperglycemia, or hyperlipidemia
  • Treatment in the previous 3 weeks with any drug
  • Symptoms of a clinically relevant illness in the 3 weeks before the first study day
  • History or presence of gastrointestinal, liver or kidney disease, or other conditions known to interfere with distribution, metabolism or excretion of study drugs
  • Blood donation during the previous 3 weeks
  • History of hypersensitivity to the trial drug or to drugs with a similar chemical structure

Trial locations and contacts

1 site in 1 country.

Austria1 site
  • Medical University of Vienna - General Hospital of the City of Vienna AKH

    Vienna, State of Vienna, 1090

Other trials in Austria

About this study

Official title: Impact of rhCu/Zn SOD on Inflammation-Induced Impairment of Vascular Reactivity

Inflammation is characterised by an increased risk for cardiovascular events. Dysfunction of the vascular endothelium caused by oxidative stress might provide a mechanistic link. In acute and chronic inflammation, oxidative stress occurs when the production of reactive oxygen species [ROS] (including superoxide anions [O2-]) exceeds the capacity of the endogenous antioxidant defense systems, resulting in ROS-mediated damage. Recombinant human superoxide dismutase (rhSOD) has shown potent antioxidant properties in in-vitro and animal studies and has been tested in phase I clinical trials in humans. rhSOD could offer a therapeutic option for vascular dysfunction in diseases associated with increased oxidative stress. The investigators, therefore, want to test if the hyporesponsiveness to vasoactive drugs (norepinephrine, acetylcholine and glyceroltrinitrate) during acute inflammation by low-dose lipopolysaccharide (LPS) is due to the increased production of superoxide anions, which could be scavanged by the radical scavenger rhSOD.

Conditions
Inflammation
Being tested
LPS 2 ng/kg intravenous (IV) bolus, rhSOD 82,000 IU (8.2 mg)/min intraarterially, Norepinephrine 60, 120, 240 pmol/min intraarterially over 5 min/dose level (two times; pre-dose and +3.5 hrs), Acetylcholine 6.25, 12.5, 25 nmol/min intraarterially over 3 min/dose level (two times; pre-dose and +3.5 hrs), Glyceroltrinitrate (nitroglycerine) 4, 8, 16 nmol/min over 3 min/dose level (two times; pre-dose and +3.5 hrs)
Medical subject headings
Inflammation

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • LPS 2 ng/kg intravenous (IV) bolusDrug

  • rhSOD 82,000 IU (8.2 mg)/min intraarteriallyDrug

  • Norepinephrine 60, 120, 240 pmol/min intraarterially over 5 min/dose level (two times; pre-dose and +3.5 hrs)Drug

  • Acetylcholine 6.25, 12.5, 25 nmol/min intraarterially over 3 min/dose level (two times; pre-dose and +3.5 hrs)Drug

  • Glyceroltrinitrate (nitroglycerine) 4, 8, 16 nmol/min over 3 min/dose level (two times; pre-dose and +3.5 hrs)Drug

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Forearm blood flow responses to acetylcholine, nitroglycerine and norepinephrine (ratio between intervention and control arm)

Secondary outcomes (1)
  1. Markers of inflammation and oxidative stress, change in MAP, change in pulse rate, subjective symptoms and body temperature; antibodies against rhSOD

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Dec 2005 (estimated)
  2. Study startJun 2005

Resources

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 1
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Enrolment
43 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00264186
Sponsor's protocol ID
LPS-rhSOD
Status last verified
May 2008
First submitted
9 Dec 2005
Last updated
22 May 2008
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing LPS 2 ng/kg intravenous (IV) bolus, rhSOD 82,000 IU (8.2 mg)/min intraarterially and Norepinephrine 60, 120, 240 pmol/min intraarterially over 5 min/dose level (two times; pre-dose and +3.5 hrs) in people with Inflammation, run by Medical University of Vienna at 1 site in Austria.

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 4 inclusion and 7 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 22 May 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 Austria. 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.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

Forearm blood flow responses to acetylcholine, nitroglycerine and norepinephrine (ratio between intervention and control arm). 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 22 May 2008; AzTrials last refreshed its copy on 6 Nov 2026.

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