Table 1 Characteristics of randomized controlled studies included into efficacy analysis of carrageenan nasal spray in common cold
Trial | Number of patients | Population | Main inclusion criteria | Duration of nasal application of carrageenan or placebo | Outcomes | Follow-up |
|---|---|---|---|---|---|---|
Fazekas T. et al. 2012 [14] | 213 | 1-18 years | Duration of symptoms since 36 h | 7 days 3 times per day | Symptoms severity; number of days without symptoms; viral load | 21d |
Ludwig M. et al. 2013 [15] | 211 | ≥18 years | Duration of symptoms since 48 h | 7 days 3 times per day | Duration of disease; symptoms severity; viral load | 21d |