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NCT06624436: DEDICATE-LPS
Immunomodulatory Effects of Dexamethasone, Tocilizumab and Anakinra During Experimental Human Endotoxemia
Phase 4 trial testing Dexamethasone in Sepsis in 52 participants. Currently enrolling.
1 September 2025
Quick facts
| Lead sponsor | Radboud University Medical Center |
|---|---|
| Phase | Phase 4 |
| Status | Recruiting now |
| Study type | INTERVENTIONAL |
| Allocation | randomized |
| Design | parallel |
| Masking | quadruple |
| Primary purpose | treatment |
| Enrollment | 52 |
| Start date | 24 October 2024 |
| Primary completion | 1 September 2025 |
| Estimated completion | 1 December 2025 |
| Sites | 1 location across Netherlands |
Drugs / interventions tested
- Dexamethasone (dexamethasone) — full drug profile →
- Tocilizumab (tocilizumab) — full drug profile →
- Anakinra (ANAKINRA) — full drug profile →
- Placebo
- LPS — full drug profile →
Conditions studied
- Sepsis — all drugs for Sepsis →
- Neuroinflammatory Response — all drugs for Neuroinflammatory Response →
- Immunosuppresion — all drugs for Immunosuppresion →
- Endotoxemia — all drugs for Endotoxemia →
Sponsor
Radboud University Medical Center
Who can join
Adults 18 to 35, male only, with Sepsis or Neuroinflammatory Response. Healthy volunteers can join.
What's being measured
Primary outcomes are the specific endpoints the trial is designed to prove or disprove.
-
Between-group differences in plasma TNF concentrations upon the second LPS challenge
Time frame: 1 day (during second LPS challenge)
The effects of dexamethasone, tocilizumab and anakinra on the development of immunoparalysis in a repeated endotoxemia model in humans, reflected by between-group differences in plasma TNF concentrations upon the second LPS challenge. -
Within and between-group differences in CSF TNF concentrations during repeated experimental human endotoxemia
Time frame: 8 days
The extent of the neuroinflammatory response as well as the effects of dexamethasone, tocilizumab and anakinra on neuroinflammation, reflected by within and between-group differences in CSF TNF concentrations during repeated experimental human endotoxemia
Sponsor's own description
The goal of this clinical trial is to investigate the immunomodulatory effects of the drugs dexamethasone, tocilizumab and anakinra in healthy male subjects aged 18 to 35 undergoing experimental endotoxemia. The main questions it aims to answer are: * What are the effects of these drugs on the development of immunoparalysis in a repeated human endotoxemia model? * What is the extent of the neuroinflammatory response and how do these drugs affect neuroinflammation in a repeated human endotoxemia model? Researchers will compare these drugs to a placebo (a look-alike substance that contains no drug). Participants will visit the Intensive Care research department on two or five occasions (screening included): * The intervention group will receive an LPS challenge twice, with a week in between. Before the first LPS challenge, one of the described drugs will be administered. Blood, saliva and tear fluid will be collected regularly during the LPS challenge. Cerebrospinal fluid will also be collected through a catheter in the spinal cord. * The control group will not receive an LPS challenge or drug administration and will have only one study day. During this day, blood, saliva, tear fluid and cerebrospinal fluid will be collected as regularly as during the LPS challenge of the intervention group. During an LPS challenge, the investigators mimic blood poisoning by giving an endotoxin, also called LPS. This is a small part of the cell wall of a bacteria. This will cause transient flu-like symptoms for 3-4 hours.
Publications & conference data
1 peer-reviewed publication reference this trial (live from Europe PMC):
-
Trained Immunity: RoadMap for drug discovery and development.
van Puffelen JH, Campbell C, Gander-Meisterernst I, Holldack J, et al · · 2025 · PMID 41432375 · DOI 10.7554/elife.108465
Verify or expand the search:
- PubMed search for NCT06624436
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
- Google Scholar
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Other recruiting trials for Sepsis
Currently open trials in the same condition.
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Other Radboud University Medical Center trials
Trials by the same sponsor.
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- NCT07532577 — Intranasal Insulin to Prevent Intensive Care Unit Delirium · Phase 2, PHASE3 · not yet recruiting
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Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT06624436 (US National Library of Medicine, public domain)
- Publications: Europe PMC API search by NCT ID, retrieved 1 June 2026
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by Radboud University Medical Center
- Last refreshed: 1 April 2025
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT06624436.