New supplement tested for easing cough and chest discomfort

NCT ID NCT05544942

First seen Feb 25, 2026 · Last updated May 15, 2026 · Updated 10 times

Summary

This study tested a supplement called GCWB1001 in 120 adults with mild breathing symptoms like cough, phlegm, and chest tightness. Participants took the supplement or a placebo for 12 weeks to see if it improved symptoms and lung function. The goal was to find a safe way to ease everyday respiratory discomfort.

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Contacts and locations

Locations

  • Chungbuk national university hospital

    Jungbuk, South Korea

  • HALLYM UNIV. Chuncheon MEDICAL CENTER

    Chuncheon, South Korea

  • Hallym Univ. Medical Center

    Gyeonggi-do, South Korea

  • Hanyang University Seoul Hospital

    Seoul, South Korea

Conditions

Explore the condition pages connected to this study.