Recent Updates
Recently added Catalysts

Acalabrutinib

Phase 3

Untreated Chronic Lymphocytic Leukemia | Small molecule | Oncology |AstraZeneca PLC|Last Updated: Mar 5, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
Premium
Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
Premium
Trial Design
RandomizedACTIVE_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment155
FDA Designations
PRIORITY_REVIEW
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04075292Study of Acalabrutinib Versus Chlorambucil Plus Rituximab in Adult Subjects With Previously Untreated Chronic Lymphocytic LeukemiaPHASE3 ACTIVE NOT_RECRUITING 155Jan 20, 2020Jan 1, 2027Mar 5, 202646 China, Philippines +3
Unlock Drug Trial Details
Study Endpoints
Primary Endpoints
Progression Free Survival (PFS) Assessed by BICR
Response evaluations performed every 12 weeks from Cycle 4 Day 1 to Cycle 25, then every 24 weeks until PD or death, up to DCO date of 03 January 2024 (a maximum of approximately 47.5 months)

PFS was defined as the time from randomization to PD (assessed by BICR according to International Workshop on Chronic Lymphocytic Leukaemia \[iwCLL\] 2018 guideline criteria) or death due to any cause. PD was defined as meeting at least 1 of the below criteria of groups(g) A or B. gA: increase of ≥50% from baseline (BL) or from response in lymph nodes or liver and/or spleen size; any constitutional symptoms; increase of ≥50% over nadir with absolute count ≥ 5×10\^9/liter (L) in circulating lymphocyte count (CLC); gB: decrease of ≥50% from BL secondary to CLL in platelet count; decrease of ≥2 gram per deciliter (g/dL) from BL secondary to CLL in hemoglobin (Hb); increase of CLL cells by ≥50% on successive biopsies in bone marrow (BM). Median PFS was calculated using Kaplan-Meier method and its confidence interval (CI) using Brookmeyer-Crowley method.

Secondary Endpoints
Overall Response Rate (ORR) Assessed by BICR and Investigator
Response evaluations performed every 12 weeks from Cycle 4 Day 1 to Cycle 25, then every 24 weeks until PD or death, up to DCO date of 03 January 2024 (a maximum of approximately 47.5 months)
Duration of Response (DOR) Assessed by BICR and Investigator
Response evaluations performed every 12 weeks from Cycle 4 Day 1 to Cycle 25, then every 24 weeks until PD or death, up to DCO date of 03 January 2024 (a maximum of approximately 47.5 months)
Time to Next Treatment (TTNT)
Response evaluations performed every 12 weeks from Cycle 4 Day 1 to Cycle 25, then every 24 weeks until PD, and survival follow-ups performed every 12 weeks thereafter, up to DCO date of 03 January 2024 (a maximum of approximately 47.5 months)
Unlock Study Endpoints
Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
AcalabrutinibEXPERIMENTALAcalabrutinib will be orally administered until disease progression or unacceptable toxicity
Rituximab and ChlorambucilACTIVE_COMPARATORChlorambucil orally administered and Rituximab via IV infusion for 6 cycles
Interventions
NameTypeDescription
AcalabrutinibDRUGacalabrutinib 100 mg twice daily orally
RituximabDRUGRituximab: 375 mg/m2 IV infusion on Day 1 of Cycle 1. 500 mg/m2 IV infusion on Day 1 for each of subsequent cycles (Cycles 2-6)
ChlorambucilDRUGChlorambucil: 0.5 mg/kg body weight orally on Day 1 and Day 15 of Cycles 1-6
Unlock Study Design Details
Eligibility Criteria
Age Range18 Years — 130 Years
SexALL
Healthy VolunteersNo
Study Sites46

Inclusion Criteria: * Men and women: (a) ≥65 years of age OR (b) \>18 and \<65 years of age, provided that they meet at least one of the following criteria: (i) Creatinine clearance 30 to 69 mL/min using the Cockcroft-Gault equation (iwCLL guidelines) (ii) A score higher than 6 on the Cumulative Il...

Countries:ChinaPhilippinesTaiwanThailandVietnam
Unlock Eligibility Criteria
Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT04075292primaryCompletionDate: changed
LOWMay 24, 2026NCT04075292studyFirstPostDate: changed