Secondary outcome measured will include symptom types, severity and duration (recorded by the daily symptom tracker questionnaire), hospital admission and length of stay, oxygen saturation and radiological lung changes on admission, need for ventilatory support (oxygen therapy, CPAP, intubation & ventilation), haematological changes, intensive care admission and length of stay, mortality, subsequent familial/household COVID-19 infection and acquisition of non-COVID-19 upper respiratory tract infections. The primary outcome measure will be acquisition of COVID-19 infection as confirmed by positive PCR swab taken at the time of symptoms or positive serology measured 2 weeks after symptom onset or seroconversion at the end of the trial (via trial entry and exit serology) to detect asymptomatic infection during the study period. COVID-19 infection during the trial period will be confirmed using viral PCR swabs (if symptomatic), SARS-CoV-2 serology at 14 days following onset of symptoms as well as trial entry and exit serology to detect asymptomatic infection during the study period.Īllocation to each group, treatment or placebo administration and data analysis will be blinded to both participant and investigator. Participants will use the spray prophylactically into each nostril and throat three times per day for 8 weeks, during which time the participants will be invited to complete a daily symptom tracker questionnaire. Iota-carrageenan 0.12% plus 0.04% Kappa-Carrageenan in 0.5% saline) or placebo (Coldamaris sine i.e. Of the 480 healthcare professionals recruited, 240 participants will be randomly allocated to each of either the treatment arm (verum Coldamaris plus i.e. The study design consists of a double blind, randomised placebo-controlled trial. To determine the effect on of using the spray on quality adjusted life years and cost effectiveness.To determine the usability of carrageenan nasal and throat spray for long term prophylaxis against respiratory viruses.To determine whether carrageenan nasal and throat spray reduces the severity and/or duration of infection with other respiratory viruses.To determine whether carrageenan nasal and throat spray reduces the risk of infection with other respiratory viruses.To determine whether carrageenan nasal and throat spray reduces the severity and/or duration of COVID-19 infection. ![]() The primary objective is to determine whether carrageenan nasal and throat sprays reduce the risk of COVID-19 infection. Condition or diseaseĭevice: Carrageenan nasal and throat spray Device: Saline nasal and throat spray Secondary objectives are to determine if carrageenan sprays reduce the clinical severity of COVID-19 and symptomatic acute respiratory infection of other aetiologies (non-SARS-CoV-2). The study's primary objective is the prevention of COVID-19 infection, confirmed by PCR swab or documented seroconversion. Participants (n=240) will be randomly allocated to either the treatment arm (verum Coldamaris plus, 0.12% iota-carrageenan plus 0.04% Kappa-Carrageenan in 0.5% saline) or placebo (Coldamaris sine, saline 0.5%) arm. ICE-COVID a randomised, double blind, placebo-controlled phase III trial of the prophylactic efficacy of iota-carrageenan nasal and throat spray in preventing COVID-19 illness in at risk healthcare professionals. Carrageenan mimics cell surface HS, thereby trapping the virus to allow mucociliary clearance and has demonstrated anti-viral activity in-vitro and in a number of common cold clinical trials when administered as a nasal spray. SARS-CoV-2 is a positive-sense single-stranded enveloped RNA virus which transmits via droplets, aerosols and direct contact, to reach their target naso- and oropharyngeal epithelial cells through initial electrostatic interactions to cell surface heparan sulphate (HS) proteoglycans. Key workers are at high risk of exposure highlighting the need for effective preventative strategies. There is currently no proven treatment, chemoprophylaxis or vaccine against COVID-19, which exhibits a wide clinical spectrum from asymptomatic carriage to mild upper respiratory tract infection, severe viral pneumonia to acute respiratory distress syndrome and death. ![]() The current COVID-19 pandemic is the biggest global healthcare challenge in the last century, and the number of cases in the next 12 months is likely to increase. Why Should I Register and Submit Results?.
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