has participant quality sleep disorder AE AE severity G1 AE severity G2 AE severity G3 insomnia AE 10022437 a sleep disorder AE in which there is an inability to fall asleep or to stay asleep as long as desired. SIDER: C0917801 YH, MW HPO: HP_0002360 WEB: https://en.wikipedia.org/wiki/Insomnia CTCAE: E12925 Insomnia is a symptom of a sleeping disorder characterized by persistent difficulty falling asleep or staying asleep despite the opportunity. Insomnia is a symptom, not a stand-alone diagnosis or a disease.