Positive high-level results from an interim analysis of the AMPLIFY Phase III trial showed a fixed duration of AstraZeneca?s CALQUENCE (acalabrutinib) in combination with venetoclax, with or without obinutuzumab, demonstrated a statistically significant and clinically meaningful improvement in progression-free survival (PFS) compared to standard-of-care chemoimmunotherapy in previously untreated adult patients with chronic lymphocytic leukemia (CLL). For the secondary endpoint of overall survival (OS), a trend was observed in favor of CALQUENCEin combination with venetoclax., with or without obinutizumab, versus standard-of-care chemOimmunotherapy. The OS data were not mature at the time of this analysis and the trial will continue to assess OS as a key secondary endpoint.
CLL is caused by the abnormal production of white blood cells and is the most prevalent type of leukemia in adults worldwide, with numbers anticipated to grow. In the first-line setting, approximately 40,000 patients are treated with the current standard of care. Although CLL is considered an incurable cancer, patients often live with the disease for many years, and may remain on continuous treatment.
Although CLL is considered an Incurable cancer, patients often live With the disease for many years,and may remain on continuous treatment. The safety and tolerability were consistent with the known safety profile of each medicine. No new safety signals were identified, with low rates of cardiac toxicity observed.
The data will be presented at a forthcoming medical meeting and shared with global regulatory authorities. INDICATIONS AND USAGE: CALQUENCE is a Bruton tyrosine kinase (BTK) inhibitor indicated for the treatment of adult patients with mantle cell lymphoma (MCL) who have received at least one prior therapy. This indication is approved under accelerated approval based on overall response rate.
Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials. CALQUENCE is also indicated for the treatment of adult patients with chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL). Serious and Opportunistic Infections: Fatal and serious infections, including opportunistic infections, have occurred in patients with hematologic malignancies treated with CALQUENCE.
Serious or Grade 3 or higher infections (bacterial, viral, or fungal) occurred in 19% of 1029 patients exposed to CALQUENCE in clinical trials, most often due to respiratory tract infections (11% of all patients, including pneumonia in 6%). These infections predominantly occurred in the absence of Grade 3 or 4 neutropenia, with neutropenic infection reported in 1.9% of all patients. Opportunistic infections in recipients of CALQUENCE have included, but are not limited to, hepatitis B virus reactivation, fungal pneumonia, Pneumocystis jirovecii pneumonia, Epstein-Barr virus reactivation, cytomegalovirus, and progressive multifocal leukoencephalopathy (PML).
Consider prophylaxis in patients who are at increased risk for opportunistic infections. Monitor patients for signs and symptoms of infection and treat promptly. Hemorrhage: Fatal and serious hemorrhagic events have occurred in patients with hematologic malignancies treated with CALQUENCE.
Major hemorrhage (serious or Grade 3 or higher bleeding or any central nervous system bleeding) occurred in 3.0% of patients, with fatal hemorrhage occurring in 0.1% of 1029 patients exposed to CALQUENCE in clinical trials. Bleeding events of any grade, excluding bruising and petechiae, occurred in 22% of patients. Use of antithrombotic agents concomitantly with CALQUENCE may further increase the risk of hemorrhage.
In clinical trials, major hemorrhage occurred in 2.7% of patients taking CALQUENCE without antithrombotic agents and 3.6% of patients taking CALQUENCE with antithrombotic agents. Consider the risks and benefits of antithrombotic agents when co-administered with CALQUENCE. Monitor patients for signs of bleeding.
Consider the benefit-risk of withholding CALQUENCE for 3-7 days pre- and post-surgery depending upon the type of surgery and the risk of bleeding.