SepsisNCT03392701
Possible Links Between Inflammation and Lipid Metabolism
A study testing LPS infusion in people with Sepsis and Inflammation, run by Barmherzige Brüder Linz at 1 site in Austria.
Trial summary
It has been recognized lately that sepsis and inflammation has an important impact on lipid metabolism and that the extent of hypocholesterolemia may even be a marker of severity of illness. However, the interplay between inflammation and the marked changes in lipid metabolism remain to be sufficiently understood. Read more about this study
- Who is it for?
- Ages 18 to 40 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Sepsis, Inflammation, LPS
- What is being tested?
- LPS infusion
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 10 participants
- Where
- 1 siteAustria
- Study dates
- 20 Dec 2017to 30 Sep 2018
- 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 to 40 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Men aged 18 to 40 years
- Written informed consent
- No disease history
- non-smoker
- BNP level within the normal range
- Normal renal function (serum creatinine of 1.3 mg/dL and/or creatinine clearance greater than 80ml/min)
Who cannot join
- Systolic blood pressure < 90 mmHg
- Subjects on any medication
- History of anaphylaxis
- Probands who suffer from infectious disease
Trial locations and contacts
1 site in 1 country.
About this study
It has been recognized lately that sepsis and inflammation has an important impact on lipid metabolism and that the extent of hypocholesterolemia may even be a marker of severity of illness. However, the interplay between inflammation and the marked changes in lipid metabolism remain to be sufficiently understood. Importantly, the exact kinetics of lipid parameters in inflammatory conditions are yet to be explored. This study aims to investigate the interaction between inflammation and lipid metabolism using the human endotoxin model (LPS infusion) in ten healthy volunteers in a single blinded randomized placebo controlled cross-over design.
Read the detailed description
Sepsis is a severe clinical syndrome with still limited means of therapy and often poor prognosis. It has been recognized lately that sepsis and inflammation has an important impact on lipid metabolism and that the extent of hypocholesterolemia may even be a marker of severity of illness.
This study aims to investigate the interaction between inflammation and lipid metabolism and the possible role of various markers of lipid metabolism including apolipoprotein B, apoA1 and lipoprotein(A) using the human endotoxin model in ten healthy volunteers. In this model, volunteers are infused intravenously with bacterial lipopolysaccharide (LPS, 2 ng/kg over 5 minutes) to simulate human sepsis. Immediately after the infusion of LPS, proinflammatory cytokines and other mediators are elevated just as they are in common sepsis. This widely used model thus represents a reliable method for evaluating conditions during inflammation.
In this study, LPS will be administered to ten healthy male volunteers aged 18-40 years and plasma levels of lipid parameters including those described above will subsequently be measured repeatedly to evaluate the influence of LPS on lipid metabolism and detailed kinetics of lipid parameters.
This project is planned as a prospective, single blinded randomized, placebo controlled cross-over study. Participants must be free of disease history and previous anaphylactic events, must not be on any medication and will be screened for medical disorders including renal, hepatic and cardiovascular conditions, thrombophilia and infections in an initial medical examination. Each participant will be studied on two different study days with a washout period of at least 14 days, on which either LPS (National Reference Bacterial Endotoxin, lot EC-6, prepared from Escherichia coli 0113, USPC, Inc. Rockville, MD) and saline or saline alone as a placebo will be administered. LPS will be infused in a dosage of 2 ng/kg over a period of 5 minutes. Participants will be studied after an overnight fast and after 24 hours without smoking and without consumption of caffeine-containing beverages in order to ensure standard baseline conditions. During the study, subjects will rest in a supine position. Infusion and sampling will be done using two separate intravenous catheters.
Blood samples will be centrifuged, transferred into chilled tubes and placed on ice. Plasma will be frozen at -80°C until it will be assayed. Plasma and urine sodium, potassium, creatinine and glucose will be measured via routine laboratory techniques.
A case record form will be completed for each volunteer and data will subsequently be handled in an anonymous manner. Data will be analysed using repeated measures ANOVA.
In summary, this study aims to evaluate the interactions between sepsis and lipid metabolism using the human endotoxin model. Such knowledge could improve the understanding of the pathophysiology in sepsis and may lead to the development of novel therapeutic strategies. Insights on possible interactions between inflammation and lipid metabolism could also enlighten pathophysiological pathways in metabolic syndrome and type 2 diabetes mellitus causing chronic low-grade inflammation with potential impact on various medical fields.
- Conditions
- Sepsis, Inflammation, LPS, Lipid Metabolism Disorder
- Being tested
- LPS infusion
- Medical subject headings
- Sepsis, Inflammation, Lipid Metabolism Disorders
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
LPS infusionBiological
infusion of LPS 2 ng/kg over 5 minutes
| Study group | Role | What they receive |
|---|---|---|
| LPS infusion | Experimental | infusion of LPS 2 ng/kg over 5 minutes Receives: Biological: LPS infusion |
| Placebo | Placebo comparator | NaCl Receives: Biological: LPS infusion |
What is being measured
The primary outcome is the main question the study is designed to answer.
lipid kinetics
levels of lipid parameters including LDL, HDL, lipoprotein(a), apolipoprotein A1 and apoB will be measured at multiple timepoints (t0, t15, t30, t60, t120, t180, t360, 24h and 48h) in order to evaluate the detaile kinetics of lipid parameters in inflammatory condidtions
Measured: 48 hours
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted8 Jan 2018
- Study start20 Dec 2017
- Primary completion30 Jul 2018
- Study completion30 Sep 2018
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for SepsisStudies 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
- Basic science
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 10 participants (actual)
Sponsor and investigators
- Lead sponsor
- Barmherzige Brüder Linz
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Martin Clodi, Barmherzige Brüder Linz
- Investigators
- Matthias Heinzl, MD, Study chair, Barmherzige Brüder Linz
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03392701
- Sponsor's protocol ID
- LPS lipid metabolism
- Status last verified
- Oct 2018
- First submitted
- 21 Dec 2017
- Last updated
- 17 Oct 2018
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Publications
Heinzl MW, Resl M, Klammer C, Fellinger P, Schinagl L, Obendorf F, Feldbauer R, Pohlhammer J, Wagner T, Egger M, Dieplinger B, Clodi M. SUBCLINICAL KIDNEY INJURY IS CAUSED BY A MODERATE SINGLE INFLAMMATORY EVENT. Shock. 2022 Jul 1;58(1):14-19. doi: 10.1097/SHK.0000000000001942. Epub 2022 Jul 19.
PubMed 35616594Millischer V, Heinzl M, Faka A, Resl M, Trepci A, Klammer C, Egger M, Dieplinger B, Clodi M, Schwieler L. Intravenous administration of LPS activates the kynurenine pathway in healthy male human subjects: a prospective placebo-controlled cross-over trial. J Neuroinflammation. 2021 Jul 17;18(1):158. doi: 10.1186/s12974-021-02196-x.
PubMed 34273987Heinzl MW, Resl M, Klammer C, Egger M, Dieplinger B, Clodi M. Proprotein Convertase Subtilisin/Kexin Type 9 (PCSK9) Is Not Induced in Artificial Human Inflammation and Is Not Correlated with Inflammatory Response. Infect Immun. 2020 Feb 20;88(3):e00842-19. doi: 10.1128/IAI.00842-19. Print 2020 Feb 20.
PubMed 31843964
Study at a glance
From the registry record, last updated by the sponsor on 17 Oct 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Possible Links Between Inflammation and Lipid Metabolism
- ClinicalTrials.gov ID
- NCT03392701
- Acronym / sponsor ID
- LPS lipid metabolism
- Conditions
- Sepsis, Inflammation, LPS, Lipid Metabolism Disorder
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 10 participants (actual)
- Lead sponsor
- Barmherzige Brüder LinzUniversity, hospital or other
- Study start
- 20 Dec 2017 (actual)
- Primary completion
- 30 Jul 2018 (actual)
- Study completion
- 30 Sep 2018 (actual)
- First posted
- 8 Jan 2018 (actual)
- 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.
It has been recognized lately that sepsis and inflammation has an important impact on lipid metabolism and that the extent of hypocholesterolemia may even be a marker of severity of illness. However, the interplay between inflammation and the marked changes in lipid metabolism remain to be sufficiently understood. Importantly, the exact kinetics of lipid parameters in inflammatory conditions are yet to be explored. This study aims to investigate the interaction between inflammation and lipid metabolism using the human endotoxin model (LPS infusion) in ten healthy volunteers in a single blinded randomized placebo controlled cross-over design.
Detailed description
Sepsis is a severe clinical syndrome with still limited means of therapy and often poor prognosis. It has been recognized lately that sepsis and inflammation has an important impact on lipid metabolism and that the extent of hypocholesterolemia may even be a marker of severity of illness.
This study aims to investigate the interaction between inflammation and lipid metabolism and the possible role of various markers of lipid metabolism including apolipoprotein B, apoA1 and lipoprotein(A) using the human endotoxin model in ten healthy volunteers. In this model, volunteers are infused intravenously with bacterial lipopolysaccharide (LPS, 2 ng/kg over 5 minutes) to simulate human sepsis. Immediately after the infusion of LPS, proinflammatory cytokines and other mediators are elevated just as they are in common sepsis. This widely used model thus represents a reliable method for evaluating conditions during inflammation.
In this study, LPS will be administered to ten healthy male volunteers aged 18-40 years and plasma levels of lipid parameters including those described above will subsequently be measured repeatedly to evaluate the influence of LPS on lipid metabolism and detailed kinetics of lipid parameters.
This project is planned as a prospective, single blinded randomized, placebo controlled cross-over study. Participants must be free of disease history and previous anaphylactic events, must not be on any medication and will be screened for medical disorders including renal, hepatic and cardiovascular conditions, thrombophilia and infections in an initial medical examination. Each participant will be studied on two different study days with a washout period of at least 14 days, on which either LPS (National Reference Bacterial Endotoxin, lot EC-6, prepared from Escherichia coli 0113, USPC, Inc. Rockville, MD) and saline or saline alone as a placebo will be administered. LPS will be infused in a dosage of 2 ng/kg over a period of 5 minutes. Participants will be studied after an overnight fast and after 24 hours without smoking and without consumption of caffeine-containing beverages in order to ensure standard baseline conditions. During the study, subjects will rest in a supine position. Infusion and sampling will be done using two separate intravenous catheters.
Blood samples will be centrifuged, transferred into chilled tubes and placed on ice. Plasma will be frozen at -80°C until it will be assayed. Plasma and urine sodium, potassium, creatinine and glucose will be measured via routine laboratory techniques.
A case record form will be completed for each volunteer and data will subsequently be handled in an anonymous manner. Data will be analysed using repeated measures ANOVA.
In summary, this study aims to evaluate the interactions between sepsis and lipid metabolism using the human endotoxin model. Such knowledge could improve the understanding of the pathophysiology in sepsis and may lead to the development of novel therapeutic strategies. Insights on possible interactions between inflammation and lipid metabolism could also enlighten pathophysiological pathways in metabolic syndrome and type 2 diabetes mellitus causing chronic low-grade inflammation with potential impact on various medical fields.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Single blind (participant)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| LPS infusion | Experimental | Biological: LPS infusioninfusion of LPS 2 ng/kg over 5 minutes |
| Placebo | Placebo comparator | Biological: LPS infusionNaCl |
Who may qualify
- Ages
- 18 to 40 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (6 listed)
- Men aged 18 to 40 years
- Written informed consent
- No disease history
- non-smoker
- BNP level within the normal range
Key exclusion criteria (4 listed)
- Systolic blood pressure < 90 mmHg
- Subjects on any medication
- History of anaphylaxis
- Probands who suffer from infectious disease
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 |
|---|---|---|
| LPS infusioninfusion of LPS 2 ng/kg over 5 minutes | Biological | LPS infusion, Placebo |
Primary outcome
lipid kinetics
Time frame: 48 hours
levels of lipid parameters including LDL, HDL, lipoprotein(a), apolipoprotein A1 and apoB will be measured at multiple timepoints (t0, t15, t30, t60, t120, t180, t360, 24h and 48h) in order to evaluate the detaile kinetics of lipid parameters in inflammatory condidtions
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 2018.
- Derived from this study: PubMed 35616594Heinzl MW, Resl M, Klammer C, Fellinger P, Schinagl L, Obendorf F, Feldbauer R, Pohlhammer J, Wagner T, Egger M, Dieplinger B, Clodi M. SUBCLINICAL KIDNEY INJURY IS CAUSED BY A MODERATE SINGLE INFLAMMATORY EVENT. Shock. 2022 Jul 1;58(1):14-19. doi: 10.1097/SHK.0000000000001942. Epub 2022 Jul 19.
- Derived from this study: PubMed 34273987Millischer V, Heinzl M, Faka A, Resl M, Trepci A, Klammer C, Egger M, Dieplinger B, Clodi M, Schwieler L. Intravenous administration of LPS activates the kynurenine pathway in healthy male human subjects: a prospective placebo-controlled cross-over trial. J Neuroinflammation. 2021 Jul 17;18(1):158. doi: 10.1186/s12974-021-02196-x.
- Derived from this study: PubMed 31843964Heinzl MW, Resl M, Klammer C, Egger M, Dieplinger B, Clodi M. Proprotein Convertase Subtilisin/Kexin Type 9 (PCSK9) Is Not Induced in Artificial Human Inflammation and Is Not Correlated with Inflammatory Response. Infect Immun. 2020 Feb 20;88(3):e00842-19. doi: 10.1128/IAI.00842-19. Print 2020 Feb 20.
- Individual participant dataSharing planned: Undecided
Related trials for Sepsis
Not yet recruitingObservational study
Ultrasound-Calibrated Pulse Contour Cardiac Output Monitoring: Value and Accuracy in Hemodynamic Care
Sepsis, Circulatory Instability
Active, not recruitingObservational study
The CoPenHagen PREeClampsia and cardIOvascUlar diSease Study
Pre-Eclampsia, Atherosclerosis
Not yet recruiting
ICU-SUCCEED for Survivors of Acute Respiratory Failure and Their Caregivers
Acute Respiratory Failure, Critical Illness
RecruitingPhase 3
THE ROLE OF PANCREATIC STONE PROTEIN (PSP) AND PSP-GUIDED EARLY MEROPENEM TREATMENT TO MITIGATE SEPSIS RISK AT THE EMERGENCY DEPARTMENT: THE PROMISE DOUBLE BLIND, PHASE III, RANDOMIZED CONTROLLED CLINICAL TRIAL
Sepsis
Not yet recruiting
Evaluation of an AI-Assisted Tool for CLABSI Surveillance at VA Medical Centers
Central Line-Associated Bloodstream Infection (CLABSI), Bacteremia
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.
Matthias Heinzl, MD study chair
Barmherzige Brüder Linz
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing LPS infusion in people with Sepsis and Inflammation, run by Barmherzige Brüder Linz 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 6 inclusion and 4 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 2018. 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. Some participants in this study may receive a placebo. 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?
lipid kinetics (time frame: 48 hours). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03392701, which also lists 3 linked publications.
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 2018.