A Study of Mobocertinib Capsules in People With Severe Kidney Problems and People With Healthy Kidneys

It is hoped that mobocertinib will eventually help people with cancer with severely reduced kidney function. The main aim of this study is to learn about the levels of mobocertinib in the blood and urine of participants with severely reduced kidney function and participants with healthy kidneys. These participants do not have cancer. The information from this study will be used to work out the best dose of mobocertinib for people with cancer with severely reduced kidney function in the future. At the first visit, the study doctor will check who can take part. Participants who can take part will be placed into 1 of 2 treatment groups. Participants with severely reduced kidney function will be in 1 group. Participants with healthy kidneys will be in the other group. Participants in both groups will receive the same treatment and the group results will be compared. Participants from both groups will take 1 capsule of mobocertinib. They will stay in the clinic for 10 days so the study doctors can check the amount of mobocertinib in the blood and urine of these participants over time. The study doctors will also check if the participants have any side effects from this treatment. The clinic will call the participants 30 days after they took mobocertinib to check if they have any more side effects from their treatment.