PMID- 33786588 OWN - NLM STAT- MEDLINE DCOM- 20211203 LR - 20240207 IS - 1528-0020 (Electronic) IS - 0006-4971 (Print) IS - 0006-4971 (Linking) VI - 137 IP - 24 DP - 2021 Jun 17 TI - Acalabrutinib in treatment-naive chronic lymphocytic leukemia. PG - 3327-3338 LID - 10.1182/blood.2020009617 [doi] AB - Acalabrutinib has demonstrated significant efficacy and safety in relapsed chronic lymphocytic leukemia (CLL). Efficacy and safety of acalabrutinib monotherapy were evaluated in a treatment-naive CLL cohort of a single-arm phase 1/2 trial (ACE-CL-001). Adults were eligible for enrollment if chemotherapy was declined or deemed inappropriate due to comorbidities (N = 99). Patients had a median age of 64 years and 47% had Rai stage III/IV disease. Acalabrutinib was administered orally 200 mg once daily, or 100 mg twice daily until progression or intolerance. A total of 99 patients were treated; 57 (62%) had unmutated immunoglobulin heavy-chain variable gene, and 12 (18%) had TP53 aberrations. After median follow-up of 53 months, 85 patients remain on treatment; 14 discontinued treatment, mostly because of adverse events (AEs) (n = 6) or disease progression (n = 3). Overall response rate was 97% (90% partial response; 7% complete response), with similar outcomes among all prognostic subgroups. Because of improved trough BTK occupancy with twice-daily dosing, all patients were transitioned to 100 mg twice daily. Median duration of response (DOR) was not reached; 48-month DOR rate was 97% (95% confidence interval, 90-99). Serious AEs were reported in 38 patients (38%). AEs required discontinuation in 6 patients (6%) because of second primary cancers (n = 4) and infection (n = 2). Grade >/=3 events of special interest included infection (15%), hypertension (11%), bleeding events (3%), and atrial fibrillation (2%). Durable efficacy and long-term safety of acalabrutinib in this trial support its use in clinical management of symptomatic, untreated patients with CLL. CI - (c) 2021 by The American Society of Hematology. FAU - Byrd, John C AU - Byrd JC AD - The Ohio State University Comprehensive Cancer Center, Columbus, OH. FAU - Woyach, Jennifer A AU - Woyach JA AD - The Ohio State University Comprehensive Cancer Center, Columbus, OH. FAU - Furman, Richard R AU - Furman RR AD - Division of Hematology and Oncology, Weill Cornell Medical College, New York Presbyterian Hospital, New York, NY. FAU - Martin, Peter AU - Martin P AD - Division of Hematology and Oncology, Weill Cornell Medical College, New York Presbyterian Hospital, New York, NY. FAU - O'Brien, Susan AU - O'Brien S AD - Chao Family Comprehensive Cancer Center, University of California Irvine, Irvine, CA. FAU - Brown, Jennifer R AU - Brown JR AD - Dana-Farber Cancer Institute, Boston, MA. FAU - Stephens, Deborah M AU - Stephens DM AUID- ORCID: 0000-0001-9188-5008 AD - University of Utah Huntsman Cancer Institute, Salt Lake City, UT. FAU - Barrientos, Jacqueline C AU - Barrientos JC AD - Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY. FAU - Devereux, Stephen AU - Devereux S AD - College Hospital, NHS Foundation Trust Denmark Hill, London, United Kingdom. FAU - Hillmen, Peter AU - Hillmen P AUID- ORCID: 0000-0001-5617-4403 AD - St James's University Hospital, Leeds, United Kingdom. FAU - Pagel, John M AU - Pagel JM AD - Swedish Cancer Institute, Seattle, WA. FAU - Hamdy, Ahmed AU - Hamdy A AD - AstraZeneca, South San Francisco, CA; and. FAU - Izumi, Raquel AU - Izumi R AD - AstraZeneca, South San Francisco, CA; and. FAU - Patel, Priti AU - Patel P AD - AstraZeneca, South San Francisco, CA; and. FAU - Wang, Min Hui AU - Wang MH AD - AstraZeneca, South San Francisco, CA; and. FAU - Jain, Nitin AU - Jain N AD - Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX. FAU - Wierda, William G AU - Wierda WG AD - Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX. LA - eng GR - P30 CA016058/CA/NCI NIH HHS/United States GR - R35 CA197734/CA/NCI NIH HHS/United States PT - Clinical Trial, Phase I PT - Clinical Trial, Phase II PT - Journal Article PT - Multicenter Study PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Blood JT - Blood JID - 7603509 RN - 0 (Benzamides) RN - 0 (Pyrazines) RN - 0 (TP53 protein, human) RN - 0 (Tumor Suppressor Protein p53) RN - I42748ELQW (acalabrutinib) SB - IM CIN - Blood. 2021 Jun 17;137(24):3313-3314. PMID: 34137848 MH - Adult MH - Aged MH - Aged, 80 and over MH - *Benzamides/administration & dosage/adverse effects/pharmacokinetics MH - Female MH - Humans MH - Leukemia, Lymphocytic, Chronic, B-Cell/*drug therapy/genetics/metabolism/pathology MH - Male MH - Middle Aged MH - *Mutation MH - Neoplasm Staging MH - *Pyrazines/administration & dosage/adverse effects/pharmacokinetics MH - Tumor Suppressor Protein p53/genetics PMC - PMC8670015 EDAT- 2021/04/01 06:00 MHDA- 2021/12/15 06:00 PMCR- 2021/06/17 CRDT- 2021/03/31 06:46 PHST- 2020/10/28 00:00 [received] PHST- 2021/02/20 00:00 [accepted] PHST- 2021/04/01 06:00 [pubmed] PHST- 2021/12/15 06:00 [medline] PHST- 2021/03/31 06:46 [entrez] PHST- 2021/06/17 00:00 [pmc-release] AID - S0006-4971(21)00755-2 [pii] AID - 2021/BLD2020009617 [pii] AID - 10.1182/blood.2020009617 [doi] PST - ppublish SO - Blood. 2021 Jun 17;137(24):3327-3338. doi: 10.1182/blood.2020009617.