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AbbVie Presents Results from Phase 3 CANOVA Study of Venetoclax in Patients with Relapsed or Refractory Multiple Myeloma

Published: 2023-09-29 11:15:00 ET
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  • CANOVA study evaluated venetoclax plus dexamethasone in patients with t(11;14)-positive multiple myeloma compared to pomalidomide plus dexamethasone
  • Results are being presented at the International Myeloma Society Annual Meeting in Athens, Greece
  • AbbVie will discuss the data with health authorities in the near future to further understand the potential of venetoclax as a biomarker-driven therapy in multiple myeloma

NORTH CHICAGO, Ill., Sept. 29, 2023/PRNewswire/ -- AbbVie (NYSE: ABBV) today announced data from its Phase 3 CANOVA study evaluating the safety and efficacy of venetoclax (VENCLEXTA®/ VENCLYXTO®) plus dexamethasone (VenDex) for patients with t(11;14)-positive relapsed or refractory (R/R) multiple myeloma who have received two or more prior treatments. Data did not demonstrate that the treatment combination significantly improved progression-free survival (PFS), the primary endpoint of the trial. Patients receiving VenDex showed improvement in median PFS of 9.9 monthscompared to 5.8 months with the combination of study comparator pomalidomide and dexamethasone (PomDex); however, the results did not reach statistical significance [HR = 0.823, 95% CI: (0.596, 1.136);p-value of 0.237]. 

Select prespecified secondary endpoints from the CANOVA trial include the following:

  • Overall response rate (ORR): 62% in VenDex vs. 35% in PomDex (nominal p-value of =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, in 15% of patients treated with the combination of venetoclax and rituximab 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. 

    AML

    The most commonly occurring adverse reactions (>=20%) of any grade in patients receiving venetoclax in combination with azacitidine or decitabine in the VIALE-A and M14-358, respectively, were thrombocytopenia, neutropenia, febrile neutropenia, nausea, diarrhoea, vomiting, anaemia, fatigue, pneumonia, hypokalaemia, and decreased appetite, haemorrhage, dizziness/syncope, hypotension, headache, abdominal pain, and anaemia.

    The most frequently reported serious adverse reactions (≥5%) in patients receiving venetoclax in combination with azacitidine were febrile neutropenia, pneumonia, sepsis and haemorrhage. In M14-358, the most frequently reported serious adverse reactions (≥5%) were febrile neutropenia, pneumonia, bacteraemia and sepsis.

    Discontinuations due to adverse reactions occurred in 24% of patients treated with venetoclax in combination with azacitidine in the VIALE-A study, and 26% of patients treated with venetoclax in combination with decitabine in the M14-358 study, respectively.

    Dosage reductions due to adverse reactions occurred in 2% of patients in VIALE-A, and in 6% of patients in M14-358. Venetoclax dose interruptions due to adverse reactions occurred in 72% and 65% of patients, respectively. The most common adverse reaction that led to dose interruption (>10%) of Venetoclax in VIALE-A, were febrile neutropenia, neutropenia, pneumonia, and thrombocytopenia.  The most common adverse reactions that led to dose interruption (≥5%) of venetoclax in M14-358 were febrile neutropenia, neutropenia/neutrophil count decreased, pneumonia, platelet count decreased, and white blood cell count decreased.

    Special Populations

    Patients with reduced renal function (CrCl