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Duration of ColdZyme® II

Duration of ColdZyme® II

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03901846
Enrollment
45
Registered
2019-04-03
Start date
2019-05-07
Completion date
2019-07-25
Last updated
2019-10-11

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

Conditions

Common Cold

Brief summary

The objective of this investigation is to verify that ColdZyme® is deposited onto the throat and estimate the half-life of the ColdZyme® solution in the oropharynx of human volunteers using a log-linear mixed-effects model (LMM).

Detailed description

The study is an Open Label, Non-Comparative study intended to verify the method used to measure the duration of ColdZyme®. Each participant will be his own control as samples are taken before application of ColdZyme and used as an internal control. Samples will be taken from the oropharyngeal membrane using a cotton swab before application, and 1, 3, 5, 10, 20, and 60 minutes after application. Glycerol will then be extracted from the swabs using water and the concentration of glycerol will be measured.

Interventions

DEVICEColdZyme

ColdZyme is a Class I medical device (CE-marked) with the following composition: glycerol, water, Tris buffer, CaCl2, menthol and trypsin

Sponsors

Enzymatica AB
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy male or female subjects between 18-70 years. The investigator judges the definition of healthy by medical history. * No reported symptoms of sore throat. * Readiness to comply with trial procedures. * Females of childbearing potential: should use reliable method of birth control. * Participation is based upon written informed consent by the participant following written and oral information by the investigator regarding nature, purpose, consequences and possible risks of the clinical study.

Exclusion criteria

* Known allergy or hypersensitivity to the components of the investigational product * History and/or presence of clinically significant condition/disorder (self-reported), which per investigator's judgement could interfere with the results of the study or the safety of the subject. * Any current cold symptom such as sore throat, sneezing, rhinorrhea, malaise, nasal obstruction or cough. * Use of products, drugs, or food containing glycerol that may influence the study outcome, or concomitant medication with pharmaceuticals that might cause dry mouth (xerostomia), e.g. but not restricted to, morphine or morphine derivates, diuretics, antidepressants or other drugs with anticholinergic effect. * Females: Pregnant or breast-feeding * History of (in the past 12 months prior to study start) or current abuse of drugs, alcohol or medication * Inability to comply with study requirements according to investigator's judgement * Participation in another clinical study in the 30 days prior to enrolment and during the study

Design outcomes

Primary

MeasureTime frameDescription
Duration of the ColdZyme barrier0-60 minutesTo measure the duration of the ColdZyme barrier following intra-oral deposition, by analyzing the oro-pharyngeal glycerol amount over time between 0 and 60 minutes after application.

Countries

Iceland

Outcome results

None listed

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