Overview
The main purpose of this study is to assess the efficacy and safety of 3 dose levels of Pirtobrutinib in participants with relapsed or refractory chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL), who have received 1-3 lines of treatment including a covalent Bruton tyrosine kinase (BTK) inhibitor. The study is expected to last approximately 3 years.
Principal investigator
Eligibility criteria
Inclusion Criteria:
* Have confirmed diagnosis of CLL/SLL as defined by these iwCLL 2018 criteria.
* Have received prior CLL/SLL treatment
* Have received at least 1, but not more than 3 lines of prior treatment for CLL/SLL
* Have received a covalent BTK inhibitor
* Have a requirement for therapy consistent with iwCLL 2018 criteria for initiation of therapy
* Capable of swallowing oral study medication.
* Have an Eastern Cooperative Oncology Group Performance Status (ECOG) score of 0 to 2.
Exclusion Criteria:
* Have received prior treatment with a BTK degrader and a noncovalent BTK inhibitor
* Have a history of greater than or equal to (\>=) Grade 3 bleeding due to treatment with a BTK inhibitor
* Have known or suspected Richter's transformation
* Have known or suspected history of central nervous system involvement by CLL/SLL
* Previous or concurrent cancer distinct from CLL/SLL within 3 years before randomization. Exceptions may occur with documented sponsor approval. Examples include:
* nonmelanoma skin cancer or lentigo maligna melanoma
* cervical carcinoma in situ
* localized prostate cancer undergoing active surveillance, and
* localized (for example, lymph node negative) breast cancer with no evidence of active disease present for more than 3 years. Individual may be receiving adjuvant hormonal therapy
* Have confirmed diagnosis of CLL/SLL as defined by these iwCLL 2018 criteria.
* Have received prior CLL/SLL treatment
* Have received at least 1, but not more than 3 lines of prior treatment for CLL/SLL
* Have received a covalent BTK inhibitor
* Have a requirement for therapy consistent with iwCLL 2018 criteria for initiation of therapy
* Capable of swallowing oral study medication.
* Have an Eastern Cooperative Oncology Group Performance Status (ECOG) score of 0 to 2.
Exclusion Criteria:
* Have received prior treatment with a BTK degrader and a noncovalent BTK inhibitor
* Have a history of greater than or equal to (\>=) Grade 3 bleeding due to treatment with a BTK inhibitor
* Have known or suspected Richter's transformation
* Have known or suspected history of central nervous system involvement by CLL/SLL
* Previous or concurrent cancer distinct from CLL/SLL within 3 years before randomization. Exceptions may occur with documented sponsor approval. Examples include:
* nonmelanoma skin cancer or lentigo maligna melanoma
* cervical carcinoma in situ
* localized prostate cancer undergoing active surveillance, and
* localized (for example, lymph node negative) breast cancer with no evidence of active disease present for more than 3 years. Individual may be receiving adjuvant hormonal therapy
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