Concentration/Meditation Limits Inflammation
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ClinicalTrials.gov Identifier: NCT01835457 |
Recruitment Status :
Completed
First Posted : April 19, 2013
Last Update Posted : July 23, 2013
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Condition or disease | Intervention/treatment | Phase |
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Autoimmune Diseases | Drug: Lipopolysaccharide Behavioral: Concentration/meditation | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 30 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Basic Science |
Official Title: | Concentration/Meditation as a Novel Means to Limit Inflammation: a Randomized Controlled Pilot Study |
Study Start Date : | February 2013 |
Actual Primary Completion Date : | June 2013 |
Actual Study Completion Date : | July 2013 |

Arm | Intervention/treatment |
---|---|
Experimental: Concentration/meditation group
Subjects in this arm will be performing the concentration/meditation technique of Wim Hof (The Iceman) prior to, during and after intravenously injected 2 ng/kg Lipopolysaccharide
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Drug: Lipopolysaccharide
LPS is used to elicit an inflammatory response in all subjects.
Other Name: Lipopolysaccharide (LPS) E. Coli 113:H 10:K negative Behavioral: Concentration/meditation A self-taught concentration/meditation technique that Mr Wim Hof developed himself, characterized by cycles consisting of a few minutes of hyperventilation followed by breath holding for up to 1-2 minutes and deep concentration (mindset).
Other Name: Wim Hof Method |
Active Comparator: Control group
Subjects in this group will be intravenously injected with 2 ng/kg Lipopolysaccharide
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Drug: Lipopolysaccharide
LPS is used to elicit an inflammatory response in all subjects.
Other Name: Lipopolysaccharide (LPS) E. Coli 113:H 10:K negative |
- Concentration of circulating TNF-α following LPS administration [ Time Frame: 1 day ]
- Circulating cytokines (including but not limited to IL-6, IL-10 and IL1RA), following LPS administration. [ Time Frame: 1 day ]
- Body temperature after LPS administration [ Time Frame: 1 day ]
- Hemodynamic parameters after LPS administration [ Time Frame: 1 day ]Blood pressure, heart rate, saturation, respiratory rate.
- Plasma cortisol levels after LPS administration [ Time Frame: 1 day ]
- Plasma catecholamines levels after LPS administration [ Time Frame: 1 day ]
- Heart Rate Variability following LPS administration [ Time Frame: 1 day ]
- mtDNA concentrations following LPS administration [ Time Frame: 1 day ]
- Transcriptome analysis of circulating leukocytes after LPS administration [ Time Frame: 1 day ]
- Cytokine production by leukocytes ex vivo stimulated with LPS after LPS administration [ Time Frame: 1 day ]
- Changes in cell surface markers and functionality of circulating neutrophils after LPS administration [ Time Frame: 1 day ]
- effects of gut microbiome on inflammatory response elicited by LPS administration [ Time Frame: 1 day ]
- Ethylene and NO concentrations in exhaled breath after LPS administration [ Time Frame: 1 day ]
- Electrolyte concentrations in blood after concentration/meditation during endotoxemia [ Time Frame: 1 day ]
- Cortisol concentration in scalp hair [ Time Frame: 1 measurement 3 weeks after LPS administration ]
- Leukocyte counts and differentiation after LPS administration [ Time Frame: 1 day ]
- Illness symptoms after LPS administration [ Time Frame: 1 day ]shivering, headache, back ache, muscle ache, vomiting.
- Blood viscosity after LPS administration [ Time Frame: 1 day ]
- Platelet-leukocyte interactions after LPS administration [ Time Frame: 1 day ]flow cytometric analysis of complexes between platelets on the one hand and monocytes, lymphocytes and neutrophils on the other hand.
- beta-2 glycoprotein concentrations after LPS administration [ Time Frame: 1 day ]
- cell surface markers on circulating leukocytes after LPS administration [ Time Frame: 1 day ]
- Plasma endorphin levels after LPS administration [ Time Frame: 1 day ]

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Ages Eligible for Study: | 18 Years to 35 Years (Adult) |
Sexes Eligible for Study: | Male |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Age ≥18 and ≤35 yrs
- Male
- Healthy
- Travel insurance (for travel to Poland for the training in the concentration/meditation technique)
Exclusion Criteria:
- Use of any medication
- Smoking
- Use of recreational drugs within 21 days prior to endotoxemia experiment day
- Use of caffeine or alcohol within 1 day prior to endotoxemia experiment day
- Previous participation in a trial where LPS was administered
- Surgery or trauma with significant blood loss or blood donation within 3 months prior to endotoxemia experiment day
- Participation in another clinical trial within 3 months prior to endotoxemia experiment day.
- History, signs, or symptoms of cardiovascular disease
- History of frequent vaso-vagal collapse or of orthostatic hypotension
- History of atrial or ventricular arrhythmia
- Hypertension (RR systolic >160 or RR diastolic >90)
- Hypotension (RR systolic <100 or RR diastolic <50)
- Conduction abnormalities on the ECG consisting of a 1st degree atrioventricular block or a complex bundle branch block
- Renal impairment: plasma creatinine >120 µmol/L
- Liver function abnormality: alkaline phosphatase>230 U/L and/or ALT>90 U/L
- History of asthma
- Obvious disease associated with immune deficiency.
- CRP > 20 mg/L, WBC > 12x109/L, or clinically significant acute illness, including infections, within 4 weeks before endotoxemia day

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 ClinicalTrials.gov identifier (NCT number): NCT01835457
Netherlands | |
Intensive Care Medicine, Radboud University Nijmegen Medical Centre | |
Nijmegen, Gelderland, Netherlands, 6500 HB |
Principal Investigator: | M. Kox, Dr. | Intensive Care Medicine, Radboud University Nijmegen Medical Centre | |
Study Director: | P. Pickkers, MD, PhD | Intensive Care Medicine, Radboud University Nijmegen Medical Centre |
Responsible Party: | Radboud University Medical Center |
ClinicalTrials.gov Identifier: | NCT01835457 |
Other Study ID Numbers: |
LPS_concmed_controlled |
First Posted: | April 19, 2013 Key Record Dates |
Last Update Posted: | July 23, 2013 |
Last Verified: | March 2013 |
Endotoxemia Autonomic Nervous System Inflammation Meditation Concentration |
Iceman LPS Cortisol Catecholamines |
Autoimmune Diseases Inflammation Pathologic Processes Immune System Diseases |