Heme Arginate in Functional Magnetic Resonance Imaging (fMRI)

NCT ID: NCT01461512

Last Updated: 2011-10-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

UNKNOWN

Clinical Phase

PHASE2

Total Enrollment

16 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-01-31

Study Completion Date

2011-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Ischemia reperfusion injury may be attenuated by HO-1 induction. Heme arginate showed protective effects during prolonged ischemia in animal studies. Functional blood oxygen level dependent (BOLD) magnetic resonance imaging (MRI) shall evaluate the effects of HO-1 induction during short-time ischemia in skeletal muscle of healthy subjects.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Ischemia reperfusion injury may be attenuated by HO-1 induction. Heme arginate showed protective effects during prolonged ischemia in animal studies. The investigators previous data confirmed strong HO-1 induction following heme arginate infusion in healthy humans. Therefore, the investigators next approach is to evaluate the direct effects of heme arginate on short time Ischemia-reperfusion (IR) injury in healthy humans. This will be done by the following surrogate markers of IR injury.

Functional blood oxygen level dependent (BOLD) magnetic resonance imaging (MRI) can measure alterations in tissue oxygenation in a high spatial and temporal resolution. This non-invasive methods therefore represent a promising technique to evaluate the effects of HO-1 induction on energy metabolism and oxygen saturation during ischemic stress and short time reperfusion in skeletal muscle.

As additional outcome, levels of myoglobin and creatine-kinase will be measured in plasma according to standard laboratory procedures.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Ischemia-reperfusion Injury

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Placebo

Group Type PLACEBO_COMPARATOR

Placebo administration

Intervention Type DRUG

NaCl isotonic

Heme arginate treatment

Group Type EXPERIMENTAL

heme arginate administration

Intervention Type DRUG

heme arginate 1 mg/kg body weight 24 hours prior to ischemia

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

heme arginate administration

heme arginate 1 mg/kg body weight 24 hours prior to ischemia

Intervention Type DRUG

Placebo administration

NaCl isotonic

Intervention Type DRUG

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Signed informed consent
* Men aged between 18 and 46 years (inclusive)
* Nonsmoker for more than 3 months
* Body mass index between 18 and 27 kg/m2
* Normal findings in medical history and physical examination unless the investigator considers an abnormality to be clinically irrelevant
* Negative results from urine drug screen if performed
* Ability to communicate well with the investigator in the local language and to understand and comply with the requirements of the study

Exclusion Criteria

* Known hypersensitivity to the study drug or any excipients of the drug formulation
* Regular use of medication, abuse of alcoholic beverages, participation in a clinical trial in the 3 weeks preceding the study
* Treatment with another investigational drug within 3 weeks prior to screening
* History or clinical evidence of any disease and/or existence of any surgical or medical condition, which might interfere with the absorption, distribution, metabolism or excretion of the study drug
* Evidence of hypertension, pathologic hyperglycemia, hyperlipidemia
* Treatment in the previous 3 weeks with any drug including over-the-counter drugs (including herbal medicines such as St John's Wort)
* Symptoms of a clinically relevant illness in the 2 weeks before the first study day
* Blood donation during the previous 3 weeks
* Any metallic, electric, electronic or magnetic device or object not removable
* Claustrophobia
Minimum Eligible Age

18 Years

Maximum Eligible Age

46 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

MWolzt

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

MWolzt

Prof. Dr. Michael Wolzt

Responsibility Role SPONSOR_INVESTIGATOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Medical University of Vienna, Department of Clinical Pharmacology

Vienna, , Austria

Site Status

Countries

Review the countries where the study has at least one active or historical site.

Austria

References

Explore related publications, articles, or registry entries linked to this study.

Andreas M, Schmid AI, Doberer D, Schewzow K, Weisshaar S, Heinze G, Bilban M, Moser E, Wolzt M. Heme arginate improves reperfusion patterns after ischemia: a randomized, placebo-controlled trial in healthy male subjects. J Cardiovasc Magn Reson. 2012 Aug 2;14(1):55. doi: 10.1186/1532-429X-14-55.

Reference Type DERIVED
PMID: 22857721 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

Version 1.2 2008-006967-35

Identifier Type: -

Identifier Source: org_study_id