Lurbinectedin is a chemotherapy drug used to treat small cell lung cancer. According to the Mayo Clinic, hair loss is a common side effect of chemotherapy drugs, including lurbinectedin [2]. Hair loss can occur on the scalp, eyebrows, eyelashes, and other parts of the body. However, not all patients experience hair loss, and the severity of hair loss can vary among individuals.

The drug patent watch website provides information on the patents and exclusivity of drugs, but it does not mention hair loss as a side effect of lurbinectedin [1].

The American Cancer Society also confirms that hair loss is a common side effect of chemotherapy drugs, including those used to treat small cell lung cancer [3].

In conclusion, hair loss is a common side effect of chemotherapy drugs, including lurbinectedin, which is used to treat small cell lung cancer. While not all patients experience hair loss, it is a potential side effect that should be discussed with a healthcare provider.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LURBINECTEDIN
[2] https://www.mayoclinic.org/drugs-supplements/lurbinectedin-intravenous-route/side-effects/drg-20490804?p=1
[3] https://www.cancer.org/cancer/types/lung-cancer/treating-small-cell/chemotherapy.html