Chronic Lymphocytic Leukemia, Small Lymphocytic Lymphoma
Conditions
Brief summary
The main purpose of Part 1 of this study is to assess the efficacy and safety of 3 dose levels of Pirtobrutinib in participants with 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 purpose of Part 2 of this study is to evaluate pirtobrutinib monotherapy in participants with treatment-naïve CLL/SLL with 17p deletions. Participation in Part 1 is expected to last approximately 3 years. Participation in Part 2 is expected to last up to 2 years.
Interventions
Administered Orally.
Sponsors
Study design
Masking description
Part 2 is non-randomized
Eligibility
Inclusion criteria
* Have confirmed diagnosis of CLL/SLL as defined by iwCLL 2018 criteria. * Part 1: 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 * Part 2: Have received no prior treatment for CLL/SLL * Part 1 - Known 17p deletion status (positive or negative) * Part 2 - Must have 17p deletion (positive) * 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 or 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 malignant 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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Overall Response Rate | Baseline up to 3 years | Overall response rate is defined as the proportion of participants who achieve the best overall response at or before the initiation of subsequent anticancer therapy of CR, CRi, nPR, or PR. ORR will be assessed using International Workshop on Chronic Lymphocytic Leukemia (iwCLL) 2018 response criteria. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Duration of Response | Baseline up to 3 years | Duration of response is defined as the time from the date of the first documented CR, CRi, nPR, or PR to disease progression (per iwCLL 2018) or death from any cause. |
Countries
Australia, Belgium, Canada, Czechia, Denmark, France, Germany, Greece, Hungary, Italy, Poland, Romania, Slovakia, South Korea, Spain, Turkey (Türkiye), United Kingdom, United States
Contacts
Eli Lilly and Company