- The fixed-duration combination met the primary endpoint of complete response rate at 56% among patients with previously untreated CLL, 70 years old or younger

- At 24 months, progression-free survival was 95% and overall survival (OS) was 98%

- The safety profile of the combination was generally consistent with known adverse events (AEs) for each agent and no new safety signals were identified

- Data to be presented at the virtual American Society of Clinical Oncology (ASCO) Annual Meeting (Abstract #7501)

NORTH CHICAGO, Ill., June 7, 2021 /PRNewswire/ -- AbbVie (NYSE: ABBV) today announced new data from the Phase 2 CAPTIVATE (PCYC-1142) study investigating IMBRUVICA® (ibrutinib) in combination with VENCLEXTA®/VENCLYXTO® (venetoclax), an all-oral, once-daily, chemotherapy-free, fixed-duration investigational combination, for patients with previously untreated chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) during an oral presentation at the virtual 2021 American Society of Clinical Oncology (ASCO) Annual Meeting (Abstract #7501). The ibrutinib and venetoclax cohort met its primary endpoint of complete response (CR) rate of 56% (95% CI 48-64) among patients without del(17p), 70 years old or younger and with 27.9 months of follow up. This rate was higher than the 37% minimum meaningful rate study assumption (P=20%) of any grade in patients receiving venetoclax in the combination studies with obinutuzumab or rituximab were neutropenia, diarrhoea, and upper respiratory tract infection.  In the monotherapy studies, the most common adverse reactions were neutropenia/neutrophil count decreased, diarrhoea, nausea, anaemia, fatigue, and upper respiratory tract infection. 

The most frequently occurring serious adverse reactions (>=2%) in patients receiving venetoclax in combination with obinutuzumab or rituximab were pneumonia, sepsis, febrile neutropenia, and TLS.  In the monotherapy studies, the most frequently reported serious adverse reactions (>=2%) were pneumonia and febrile neutropenia. 

Discontinuations due to adverse reactions occurred in 16% of patients treated with venetoclax in combination with obinutuzumab or rituximab in the CLL14 and Murano studies respectively.  In the monotherapy studies with venetoclax, 11% of patients discontinued due to adverse reactions.  

Dosage reductions due to adverse reactions occurred in 21% of patients treated with the combination of venetoclax and obinutuzumab in CLL14 and in 15% of patients treated with the combination of venetoclax and in Murano and in 14% of patients treated with venetoclax in the monotherapy studies.    The most common adverse reaction that led to dose interruptions was neutropenia.  

Specific Populations Patients with reduced renal function (CrCl