Viral and Epigenetic Influences in CRSwNP (NCT05857228)
Epigenetic Modulation Drives Chronic Type 2 Chronic Rhinosinusitis With Nasal Polyposis: Identifying Markers, Pathogens and Mechanisms
🩺 Plain-English Summary (8th-Grade Level)
Background/rationale While multiple disorders feature a Type 2 (T2) inflammation, triggers for T2 remains unknown. In Chronic Rhinosinusitis with Nasal Polyposis CRSwNP), a classic Type 2 disorder, dysfunction of the epithelial barrier is suggested by loss of epithelial cell differentiation, impaired response to wounding, and impairment of innate defense mechanisms. After unsuccessful attempts to describe T2 disorders solely by host genetic or environmental factors, the role of epigenetics in the modification of innate immune response and epithelial integrity appears an important unexplored mechanism for a novel appreciation of T2 disease. In addition, the investigators explore the possibility that these changes may be induced by viral pathogens. This concept has been supported by the recent observation that SARS-CoV-2 viral reduction measures resulted in a reduction of the frequency of respiratory viruses and a concomitant reduction in chronic airway disease, suggesting a role for viruses in T2 disease. Hypothesis The investigators believe T2 chronic rhinosinusitis (CRSwNP) involves epigenetic mechanisms where external factors, possibly viruses, contribute to disease via epigenetic manipulation and/or chronic viral infection. Objectives The investigators aim to identify epigenetic signatures associated with T2 CRS and explore the contribution of viruses. Method A robust methylation profiling with extensive coverage will be used for epigenome-wide association studies in T2 CRS patients assessing healthy subjects, CRS patients in remission, and diseased patients undergoing surgery. Moreover, advanced transcriptomic and metagenomic methods will identify gene expression profiles and viruses. This proposal also includes a cross-sectional study of patients undergoing surgery to assess transcriptomic patterns and epigenetics at the single-cell level. Expected outcome The investigators expect to identify epigenetic biomarkers and implicate several pathogenic viruses to open new targets for novel therapies.
Who can join: Review the eligibility criteria below.
Location: CHUM — Montreal, Quebec
Age range: 18 Years
🧪 Interventions in This Study
- Endoscopic sinus surgery (ESS) (PROCEDURE)
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistFull eligibility criteria are available on the official NIH protocol. View the criteria ↗
📍 All Participating Trial Locations (1 Sites)
- CHUM — Montreal, Quebec
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
More studies in Chronic Rhinosinusitis (Diagnosis)
- Impact of Sinus Surgery on Individuals With Cystic Fibrosis — Los Angeles, California
- Topical Probiotic Sinus Irrigations for Treating Chronic Sinusitis — Chicago, Illinois
- Ivacaftor for Acquired CFTR Dysfunction in Chronic Rhinosinusitis — Birmingham, Alabama
Explore by condition: All Chronic Rhinosinusitis (Diagnosis) clinical trials
💡 How to Participate
- Check the checklist above to see if you may qualify.
- Review the official NIH record below to find the coordinating site.
- Ask about the visit schedule, what is covered at no cost, and any travel support.
- Confirm with your own doctor before making a decision.