Clinical Research Directory

Longitudinal Deep Phenotyping of Central Mechanisms in Dysosmia: A Pilot Study Using Electrobulbogram (EBG), Functional MRI (fMRI), and Diffusion-Weighted Imaging (DWI)

Background: Loss of the sense of smell can seriously affect a person's quality of life. The ability to smell can be damaged by many factors, including illnesses, injuries, and exposure to toxic chemicals. The effects can vary, including complete loss of smell, partial loss, and parosomia, which is when things smell differently than they should. Objective: To study how brain function changes in people with different types of smell disorders. Also, to look at how smell loss affects quality of life over time. Eligibility: People aged 18 years or older with a disorder that affects their sense of smell. Healthy volunteers are also needed. Design: Participants will have 5 study visits over 1 year. They will have various tests and procedures: Smell tests. They will have several tests that involve smelling different items and answering questions. Questionnaires. They will answer questions about their health, mood, sense of smell, and daily habits. Magnetic resonance imaging (MRI) scans. They will lie on a bed that slides into a tube. Padding will hold their head still. They will smell different odors while in the scanner. Electrobulbogram (EBG). They will wear a soft cap with sensors that measure brain activity. They will smell different odors while wearing the cap. Nasal endoscopy. A flexible tube will be inserted into a nostril to view the inside of the nose. Biopsy. A numbing substance will be sprayed into the nose. Then a scissor-like tool will be used to collect a sample of tissue from one or both nasal passages. Samples of blood, urine, and nasal fluid will be taken.

Nasal Potential Difference (NPD) Protocol in Chronic Rhinosinusitis

The purpose of this study is to determine if acquired (partial) Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) deficiency contributes substantially to the pathogenic mechanisms underlying Chronic Rhinosinusitis (CRS), creating a localized environment that impairs mucociliary clearance (MCC).

The Efficacy and Safety of Raphamin in the Treatment of Acute Rhinosinusitis in Adult Patients

Multicenter double-blind placebo-controlled randomized in parallel groups clinical trial of the efficacy and safety of Raphamin in the treatment of acute rhinosinusitis in adult patients.

RhinAV_Evaluation of Treatments for Acute Viral Rhinitis, Rhinosinusitis, and Rhinopharyngitis

The objective of this study is to conduct post-marketing clinical follow-up of four products: NS, NHE, NHG, and PIR. This follow-up will consist of collecting clinical data in real-life conditions to confirm the tolerance, safety, and efficacy of medical devices used in the treatment of acute viral rhinitis, rhinosinusitis, and rhinopharyngitis, while also assessing the benefit/risk ratio of the products.

Post-market Clinical Follow-up Study of an Isotonic Saline Solution to Manage Nasal Congestion in Case of Flu Symptoms, Colds, Allergic Rhinitis and Rhinosinusitis in Infants and Toddlers

The goal of this observational post-market clinical follow-up study is to evaluate the safety and performance of the CE-marked nasal spray in the management of nasal congestion in case of flu, colds, allergic rhinitis and rhinosinusitis in infants and toddlers aged 3 to 48 months at day 5 post-enrolment. Enrolment does not require establishing a medical diagnosis; eligibility is based on guardian-reported nasal congestion consistent with lay use of the device. Participants will be: * Evaluated by a healthcare professional for eligibility. * Receive treatment with the CE-marked nasal spray according to its Instructions for Use, for up to 14 days. * Have their legal guardians report symptom severity and improvement using standardized scales (Visual Analog Scale) during follow-up visits on Day 2, Day 5, and Day 14 and device usability on Day 14. This study does not include a comparison group and reflects real-world use of the device in routine pediatric care.

Performance and Safety Assessment of the Mechanical Decongestant Seawater Spray Enriched With Essential Oils From Laboratoires Gilbert in Patient With Acute Rhinitis Associated With Nasal Obstruction

The purpose of this post-market clinical investigation is to assess the performance and the safety of the mechanical decongestant seawater spray enriched with essential oils from Laboratoires Gilbert. The study will evaluate the results of the spray on the acute rhinitis with nasal obstruction over a 7 days period.

Safety and Performance Assessment of the Decongestant Seawater Spray Pocket Valve Enriched With Essential Oils in Patients With Acute Rhinitis Associated With Nasal Obstruction: "DEVALPO"

The purpose of this pre-market clinical investigation is to assess the safety and the performance of decongestant seawater spray pocket valve enriched with essential oils by Gilbert Laboratories. The study will evaluate the results of acute rhinitis associated with nasal obstruction using the decongestant seawaterspray pocket valve enriched with essential oils over a 8 day period.

Efficacy of Bee Venom Phonophoresis in Treating Chronic Sinusitis:

This double-blind, randomized controlled trial (BEE-SONIC) aims to evaluate the efficacy of bee venom phonophoresis in the treatment of chronic sinusitis. Thirty adult patients (aged 18-65 years) with clinically diagnosed chronic or acute sinusitis will be randomized into two groups: the intervention group will receive bee venom phonophoresis using low-to-moderate intensity ultrasound, while the control group will receive standard care consisting of oral decongestants and saline nasal irrigation. Primary outcomes include improvement in symptom severity (SNOT-22, Visual Analog Scale) and quality of life (SF-33). Secondary outcomes include reduction in facial pain, nasal congestion, and patient satisfaction. Data will be collected at baseline, midpoint, and post-intervention, and analyzed using paired t-tests and ANOVA. The study has received ethics approval from Sinai University's Human Research Ethics Committee, and informed consent will be obtained from all participants.