This clinical trial is focused on studying two treatments for Chronic Lymphocytic Leukemia (CLL) and Small Lymphocytic Lymphoma (SLL). These are types of cancer that affect the blood and lymph nodes. The study compares two medications: Pirtobrutinib (also known by its code name LOXO-305) and Ibrutinib. Both medications are taken orally, with Pirtobrutinib in tablet form and Ibrutinib in capsule form.
The purpose of the study is to evaluate how well patients respond to Pirtobrutinib compared to Ibrutinib. Participants in the study will be randomly assigned to receive either Pirtobrutinib or Ibrutinib. The study will monitor the overall response rate, which means it will look at how many patients experience a reduction in their cancer symptoms or achieve remission, where the cancer is no longer detectable. The study is expected to last for a period of up to 66 weeks.
Throughout the study, participants will be closely monitored by healthcare professionals to ensure their safety and to assess the effectiveness of the treatment. The study aims to provide valuable information on which medication might be more effective for treating CLL and SLL, potentially leading to improved treatment options for patients with these conditions.



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