Matching-adjusted indirect comparison of acalabrutinib versus ibrutinib in relapsed/refractory mantle cell lymphoma.

Objective: In the absence of head-to-head clinical trials, matching-adjusted indirect comparison (MAIC) was used to compare two Bruton tyrosine kinase inhibitors (BTKis) approved for the treatment of relapsed/refractory (R/R) mantle cell lymphoma (MCL). This analysis compares the efficacy and safety of acalabrutinib versus ibrutinib using a more mature dataset than a previously published MAIC.

Methods: Individual patient data from 122 patients treated with acalabrutinib in a phase 2 study were weighted to match aggregate baseline characteristics of patients pooled from three separate trials of ibrutinib.

Mutational profile in previously treated patients with chronic lymphocytic leukemia progression on acalabrutinib or ibrutinib.

Chronic lymphocytic leukemia (CLL) progression during Bruton tyrosine kinase (BTK) inhibitor treatment is typically characterized by emergent B-cell receptor pathway mutations. Using peripheral blood samples from patients with relapsed/refractory CLL in ELEVATE-RR (NCT02477696; median 2 prior therapies), we report clonal evolution data for patients progressing on acalabrutinib or ibrutinib (median follow-up, 41 months). Paired (baseline and progression) samples were available for 47 (excluding 1 Richter) acalabrutinib-treated and 30 (excluding 6 Richter) ibrutinib-treated patients.

Analysis of ventricular arrhythmias and sudden death from prospective, randomized clinical trials of acalabrutinib.

This analysis investigated the incidence of sudden deaths (SDs) and non-fatal and fatal ventricular arrhythmias (VAs) in five acalabrutinib clinical trials. In total, 1299 patients received acalabrutinib (exposure, 4568.4 patient-years).

The demise of the giant ape Gigantopithecus blacki.

The largest ever primate and one of the largest of the southeast Asian megafauna, Gigantopithecus blacki, persisted in China from about 2.0 million years until the late middle Pleistocene when it became extinct. Its demise is enigmatic considering that it was one of the few Asian great apes to go extinct in the last 2.