Skip to content

Xanthohumol as an Adjuvant Therapy in Critically Ill COVID-19 Patients

Humulus Lupus Extract Rich in Xanthohumol Improves Clinical Course in Critically Ill COVID-19 Patients

Status
Suspended
Phases
Early Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05463393
Enrollment
50
Registered
2022-07-19
Start date
2020-10-01
Completion date
2025-12-31
Last updated
2025-07-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

COVID-19 Respiratory Infection

Brief summary

It has been well documented that coronavirus COVID-19 disease is associated with massive inflammatory response and cytokine storm. Several medications have been used to ameliorate COVID-19-related inflammation. Xanthohumol, a natural medication extracted from hop cones, possesses strong anti-inflammatory properties and can reduce the severity of inflammatory response. The aim of this study is to analyze the effect of Xanthohumol on clinical course, inflammatory response and outcome in patients admitted to the ICU due to COVID-related acute respiratory failure with an oxygenation index (PaO2/FiO2) less than 150.

Detailed description

Xanthohumol inhibits proinflammatory pathways in different independent mechanisms. Ir inhibits farnesoid X receptor activity, and reduces the synthesis and release of different proinflammatory cytokines such as IL-1β, IL-6, IL-8, IL-12p70, TNFα and interferon γ. The pathomechanism of its anti-inflammatory activity is associated with the suppression of nuclear factor-kappa B. Additionally, Xanthohumol inhibits inflammatory-induced endothelial disorders, which are associated with an improvement in blood velocity and a reduction in the risk of arterial thrombosis, especially in pulmonary arteries. An increase in proinflammatory release, known as cytokine storm, as well as increased incidences of vascular thrombosis, are observed in coronavirus infection. Hence, Xanthohumol may reduce the severity of the clinical course in COVID-19 patients.

Interventions

BIOLOGICALXanthohumol - prenylated chalcone extracted from female inflorescences of hop cones (Humulus lupus). Hop-RXn™, BioActive-Tech Ltd, Lublin, Poland; http://xanthohumol.com.pl/

The appropriate dose of Xanthohumol was solved in 1 mL of propylene glycol

Sponsors

Medical University of Lublin
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
SINGLE (Investigator)

Intervention model description

Patients were randomized in a double-blind, placebo-controlled fashion into two groups using sealed envelopes

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Clinical diagnosis of COVID-19 with acute respiratory failure (PaO2/FiO2 below 150).

Exclusion criteria

History of chronic cardiovascular, liver or/and kidney diseases. History of chronic pulmonary diseases with prolonged oxygen supplementation or domestic mechanical ventilation. Pregnant women, Neoplastic diseases, Immunologic diseases Patients received immunomodulatory treatment.

Design outcomes

Primary

MeasureTime frameDescription
Xanthohumol reduces coronavirus-induced inflammatory responseone week after regular supplementationXanthohumol possesses strong anti-inflammatory properties. It can reduce the production and secretion of pro-inflammatory cytokines. Additionally, it inhibits inflammatory-induced endothelial dysregulation and exerting antiangiogenic and anti-inflammatory effects.
Xanthohumol improves clinical course in critically ill COVID-19 patients28 days mortalityReduction the severity of inflammatory response should affect clinical course. Strong anti-inflammatory treatment can reduce a risk of poor outcome.

Countries

Poland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026