NCT04175652 - Clinical Trial References

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Citation(s)

Heo EH, Kim S, Park HJ, Kil SY
The effects of a simulated laughter programme on mood, cortisol levels, and health-related quality of life among haemodialysis patients. Complement Ther Clin Pract. 2016 Nov;25:1-7. doi: 10.1016/j.ctcp.2016.07.001. Epub 2016 Jul 27.
Yim J
Therapeutic Benefits of Laughter in Mental Health: A Theoretical Review. Tohoku J Exp Med. 2016 Jul;239(3):243-9. doi: 10.1620/tjem.239.243. Review.

Effects of Laughter Yoga on Hemodialysis Patients' Plasma-Beta Endorphin Levels, Pain Levels and Sleep Quality: A Randomized Controlled Trial

Clinical trial NCT04175652 - References