Pirtobrutinib + R-CHOP for Richter Transformation
What You Need to Know Before You Apply
What is the purpose of this trial?
This phase III trial compares the effect of adding pirtobrutinib to the usual treatment with rituximab, cyclophosphamide, doxorubicin, vincristine and prednisone (R-CHOP) to R-CHOP alone for the treatment of Richter transformation, which is when chronic lymphocytic leukemia or small lymphocytic lymphoma turns into large B-cell lymphoma, a more aggressive (faster-growing) form of lymphoma. Pirtobrutinib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Rituximab is a monoclonal antibody. It binds to a protein called CD20, which is found on B cells (a type of white blood cell) and some types of cancer cells. This may help the immune system kill cancer cells. Cyclophosphamide is in a class of medications called alkylating agents. It works by damaging the cell's DNA and may kill cancer cells. It may also lower the body's immune response. Doxorubicin is in a class of medications called anthracyclines. Doxorubicin damages the cell's DNA and may kill cancer cells. It also blocks a certain enzyme needed for cell division and DNA repair. Vincristine is in a class of medications called vinca alkaloids. It works by stopping cancer cells from growing and dividing and may kill them. Prednisone is in a class of medications called corticosteroids. It is used to reduce inflammation and lower the body's immune response to help lessen the side effects of chemotherapy drugs. Adding pirtobrutinib to R-CHOP may kill more cancer cells than R-CHOP alone in patients with Richter transformation.
Who Is on the Research Team?
Mazyar Shadman
Principal Investigator
SWOG Cancer Research Network
Are You a Good Fit for This Trial?
This trial is for people newly diagnosed with Richter transformation (when CLL/SLL turns into large B-cell lymphoma) who haven't yet received treatment for this aggressive lymphoma, except possibly short-term steroids. Participants must have measurable disease and be able to safely receive the chemotherapy drugs used in the study.Inclusion Criteria
What Are the Treatments Tested in This Trial?
Interventions
- Cyclophosphamide
- Doxorubicin Hydrochloride
- Pirtobrutinib
- Prednisone
- Rituximab
- Vincristine
Trial Overview
The study compares adding a new drug called pirtobrutinib to standard R-CHOP chemotherapy versus R-CHOP alone in treating Richter transformation. Patients are randomly assigned to one of these two groups.
How Is the Trial Designed?
2
Treatment groups
Experimental Treatment
Active Control
Patients receive pirtobrutinib PO QD on days 1-21 of each cycle, rituximab IV or rituximab hyaluronidase SC (starting with cycle 2), cyclophosphamide IV on day 1 of each cycle, doxorubicin IV on day 1 of each cycle, vincristine IV on day 1 of each cycle, and prednisone PO QD on days 1-5 of each cycle. Cycles repeat every 21 days for 6 cycles in the absence of disease progression or unacceptable toxicity. After completion of cycle 6, patients continue to receive pirtobrutinib PO QD on days 1-21 of each cycle for up to 5 years in the absence of disease progression or unacceptable toxicity. Patients with progressive disease or symptomatic deterioration may receive 1 additional cycle as long as the participant is continuing to clinically benefit from treatment in the opinion of the treating investigator. Patients undergo echocardiography or MUGA scan and buccal swab collection during screening, as well as CT scan and/or PET/CT, and blood sample collection throughout the study.
Patients receive rituximab IV or rituximab hyaluronidase SC (starting with cycle 2), cyclophosphamide IV on day 1 of each cycle, doxorubicin IV on day 1 of each cycle, vincristine IV on day 1 of each cycle, and prednisone PO QD on days 1-5 of each cycle. Cycles repeat every 21 days for 6 cycles in the absence of disease progression or unacceptable toxicity. Patients undergo echocardiography or MUGA scan and buccal swab collection during screening, as well as CT scan and/or PET, and blood sample collection throughout the study.
Find a Clinic Near You
Who Is Running the Clinical Trial?
SWOG Cancer Research Network
Lead Sponsor
National Cancer Institute (NCI)
Collaborator
Unbiased Results
We believe in providing patients with all the options.
Your Data Stays Your Data
We only share your information with the clinical trials you're trying to access.
Verified Trials Only
All of our trials are run by licensed doctors, researchers, and healthcare companies.