Clinical trials

This study will test whether astaxanthin, a naturally occurring antioxidant supplement, can improve lung function, reduce airway inflammation, and improve asthma control in adults with mild-to-moderate asthma. Participants will receive astaxanthin and placebo in random order in a double-blind crossover design. Each treatment period lasts 4 weeks and is separated by a 3-week washout period. The study also measures indoor and personal air pollution exposure to examine whether pollution influences asthma symptoms, airway responsiveness, and response to treatment. Exploratory thoracic bioelectrical impedance spectroscopy will be assessed alongside standard respiratory tests.

This study aims to evaluate the effectiveness and safety of a combined herbal supplement containing Boswellia serrata, Curcuma longa, and Vitis vinifera in adults with clinically diagnosed knee or hip osteoarthritis. The primary objective is to determine whether the supplement improves osteoarthritis-related symptoms. The supplement will be compared with a placebo. Participants will: * take the supplement and placebo for 4 weeks each, one at a time; * complete validated questionnaires (6 times online) * perform three performance-based physical tests (6 times online) * provide a urine sample