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Development of Novel Non-invasive Inflammometry Following Lipopolysaccharide, Endotoxin (LPS) Challenge in Healthy Volunteers

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT03044327
Recruitment Status : Completed
First Posted : February 7, 2017
Last Update Posted : May 30, 2018
Hannover Medical School
Information provided by (Responsible Party):
Prof. Dr. Jens Hohlfeld, Fraunhofer-Institute of Toxicology and Experimental Medicine

Brief Summary:
The aim of this study is to further profile and develop the Lipopolysaccharide, endotoxin (LPS) challenge models (both by instillation and inhalation) by investigating the utility of various non-invasive monitoring methods.

Condition or disease Intervention/treatment Phase
Healthy Procedure: LPS challenge Not Applicable

Detailed Description:

The hypothesis of the project is that local inflammatory changes in the lung induced by LPS can be captured by gas-enhanced Magnetic resonance imaging (MRI) and analysis of exhaled breath. While MRI is able to provide localized information on inflammatory processes, exhaled breath analysis can capture integral information over time. Assuming that these novel techniques correlate with cellular measures of inflammation, repetitive measurements to investigate onset and duration of action of investigational new drugs will be made possible.

The evaluation whether LPS induced changes in the lung can be captured and monitored by MRI will be performed by correlation of multiple endpoints describing the cellular composition of the airways with variables derived from MRI and breath analysis.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 11 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Basic Science
Official Title: Development of Novel Non-invasive Inflammometry Following LPS Challenge in Healthy Volunteers
Actual Study Start Date : February 15, 2017
Actual Primary Completion Date : December 31, 2017
Actual Study Completion Date : December 31, 2017

Arm Intervention/treatment
LPS challenge
LPS inhalation and bronchial instillation
Procedure: LPS challenge
LPS inhalation and bronchial instillation

Primary Outcome Measures :
  1. Change in the number of total cells in bronchoalveolar lavage [ Time Frame: change from baseline to 6 hours and 24 hours post LPS ]

Secondary Outcome Measures :
  1. The regional change in xenon uptake in dissolved-phase MRI [ Time Frame: change from baseline to 6 hours and 24 hours post LPS ]
  2. The regional change in oxygen transfer function assessed by MRI [ Time Frame: change from baseline to 6 hours and 24 hours post LPS ]
  3. The change of the number of exhaled particles [ Time Frame: change from baseline to 6 hours and 24 hours post LPS ]

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 65 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Male and female healthy subjects, aged 18-65 years. Women will be considered for inclusion if they are:

Not pregnant, as confirmed by pregnancy test (see flow chart), and not nursing. Of non-child bearing potential (i.e. physiologically incapable of becoming pregnant, including any female who is pre-menarchial or post-menopausal, with documented proof of hysterectomy or tubal ligation, or meets clinical criteria for menopause and has been amenorrhoeic for more than 1 year prior to the screening visit).

Of childbearing potential and using a highly effective method of contraception during the entire study (vasectomised partner, sexual abstinence - the lifestyle of the female should be such that there is complete abstinence from intercourse from two weeks prior to the first dose of study medication until at least 72 hours after treatment -, implants, injectables, combined oral contraceptives, hormonal IUDs or double-barrier methods, i.e. any double combination of IUD, condom with spermicidal gel, diaphragm, sponge, and cervical cap).

  • Normal lung function with FEV1 predicted ≥ 80%
  • Nonsmokers with a history of less than 1 pack year having been nonsmokers for at least the last five years
  • Able and willing to give written informed consent

Exclusion Criteria:

  • • Past or present disease, which as judged by the investigator, may affect the outcome of the study. These diseases include, but are not limited to, cardiovascular disease, malignancy, hepatic disease, renal disease, hematological disease, neurological disease, psychiatric disease, endocrine disease, infectious disease, inflammatory disease or pulmonary disease (including but not confined to asthma, tuberculosis, bronchiectasis or cystic fibrosis)

    • Regular intake of any prescribed or over the counter medication. Exceptions include paracetamol for pain relief, oral contraceptive medication, hormonal replacement therapy, dietary and vitamin supplements
    • Clinically relevant history of allergy as judged by the investigator
    • Patient unable to undergo MRI (e.g. due to claustrophobia, cardiac pacemaker, hypersensitivity to MR i.v. contrast imaging agents)
    • Infections of the lower respiratory tract within 4 weeks before visit 1, visit 2, or visit 3. These patients can be rescreened starting from visit 1.
    • Any clinically relevant abnormal findings in physical examination, clinical chemistry, hematology, urinalysis, vital signs or ECG at Visit 1, which, in the opinion of the investigator, may either put the subject at risk because of participation in the study, or may influence the results of the study, or the subject's ability to participate in the study
    • Elevated IgE
    • Intake of systemic or inhaled steroids in the previous 4 weeks before visit 1, visit 2, or visit 3
    • History of drug or alcohol abuse
    • Risk of non-compliance with study procedures
    • Suspected inability to understand the protocol requirements, instructions and study-related restrictions, the nature, scope, and possible consequences of the study

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03044327

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Fraunhofer ITEM
Hannover, Niedersachsen, Germany, 30625
Sponsors and Collaborators
Fraunhofer-Institute of Toxicology and Experimental Medicine
Hannover Medical School
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Principal Investigator: Jens Hohlfeld, MD Fraunhofer-Institute of Toxicology and Experimental Medicine

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Responsible Party: Prof. Dr. Jens Hohlfeld, Division Director Airway Research, Fraunhofer-Institute of Toxicology and Experimental Medicine Identifier: NCT03044327    
Other Study ID Numbers: 15-03 DONNER
First Posted: February 7, 2017    Key Record Dates
Last Update Posted: May 30, 2018
Last Verified: May 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No