Recent Updates
Recently added Catalysts

Acalabrutinib

Phase 1

Chronic Lymphocytic Leukemia | Small molecule | Oncology |Incyte Corporation|Last Updated: Nov 6, 2025

Target and mechanism

Molecular targetBTK
Target classInhibitor
ModalitySmall molecule

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

UNCONTROLLED
Total Trials1
Total Enrollment27

FDA Designations

No designations recorded

Clinical trial landscape

Acalabrutinib · 1 trial · 1 indication

Phase 1 1
NCT05943496Tafasitamab, Acalabrutinib, and Obinutuzumab for the Treatment of Previously Untreated Chronic Lymphocytic Leukemia and Small Lymphocytic LymphomaChronic Lymphocytic Leukemia
RECRUITING27 Analytics
PHASE1RECRUITING
Tafasitamab, Acalabrutinib, and Obinutuzumab for the Treatment of Previously Untreated Chronic Lymphocytic Leukemia and Small Lymphocytic Lymphoma
Chronic Lymphocytic LeukemiaUnlock trial analytics

Study Endpoints

Primary Endpoints

Incidence of dose limiting toxicities (DLTs)
From first dose of tafasitamab (cycle 2, day 1) to end of cycle 6 (C6D28) up to 2 years. (cycle length = 28 days)

Incidences of DLTs, serious AEs, and AEs of special interest experienced during cycle 2-6 evaluated. The severity of the AE assessed using National Cancer Institute Common Terminology Criteria for Adverse Events version 5. The international working chronic lymphocytic leukemia (iwCLL) grading system for hematological toxicities also utilized. Incidence and type of DLT reported.

Proportion of patients that achieve minimal residual disease (MRD) negativity in peripheral blood
From first dose of study drug (cycle 1, day 1) to 3, 6, 9, 12 months and 1-3 months after last dose of acalabrutinib up to 2 years.(cycle length = 28 days)

MRD negativity in patients reported using the efficacy set. Point estimate, along with exact two-sided 95% confidence interval (CI) reported.

Secondary Endpoints

Objective response rate (ORR)
From cycle 1, day 1 to any complete response (CR) or partial response (PR) through cycle 12 up to 2 years.(cycle length = 28 days)
Unlock Study Endpoints

Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Treatment (tafasitamab, obinutuzumab, acalabrutinib)EXPERIMENTALSee Detailed DescriptionPatients receive obinutuzumab IV over a rate titrated up to 400 mg/hour on days 1, 2, 8, and 15 for cycle 1 then on day 1 for cycles 2-6 and tafasitamab IV over 1.5-2 hours on days 1, 4, 8, 15, and 22 for cycle 2, on days 1, 8, 15, and 22 for cycles 3-4, and on days 1 and 15 for cycles 5-7. Patients also receive acalabrutinib PO BID in each cycle. Treatment repeats every 28 days for up to 12 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo blood sample collection and CT throughout the trial. Patients may undergo an ECHO at baseline as clinically indicated and may also undergo bone marrow biopsy and/or aspiration at baseline and/or follow-up.

Interventions

NameTypeDescription
AcalabrutinibDRUGGiven PO
Biospecimen CollectionPROCEDUREUndergo blood sample collection
Bone Marrow AspirationPROCEDUREUndergo bone marrow biopsy and/or aspiration
Bone Marrow BiopsyPROCEDUREUndergo bone marrow biopsy and/or aspiration
Computed TomographyPROCEDUREUndergo CT scan
EchocardiographyPROCEDUREUndergo ECHO
ObinutuzumabBIOLOGICALGiven IV
Questionnaire AdministrationOTHERAncillary studies
TafasitamabBIOLOGICALGiven IV
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites1

Participant Inclusion Criteria * Written informed consent. Participant or legally authorized representative (LAR) must provide written informed consent prior to any study-specific procedures or interventions * Age \>= 18 years. All genders, races, and ethnic groups will be included * Ability to swa...

Countries:United States
Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

LOWMay 26, 2026NCT05943496primaryCompletionDate: changed
LOWMay 24, 2026NCT05943496studyFirstPostDate: changed

Frequently asked questions about Acalabrutinib

What is Acalabrutinib used for in Chronic Lymphocytic Leukemia?

Acalabrutinib is an investigational small molecule being studied for the treatment of Chronic Lymphocytic Leukemia (CLL). It is currently in Phase 1 clinical development, evaluated in combination with tafasitamab and obinutuzumab for previously untreated CLL and small lymphocytic lymphoma.

What does Acalabrutinib target?

Acalabrutinib targets Bruton's tyrosine kinase (BTK), an enzyme involved in B-cell receptor signaling. As a BTK inhibitor, it is designed to interfere with pathways that support the survival and proliferation of malignant B cells in Chronic Lymphocytic Leukemia.

Who makes Acalabrutinib?

Acalabrutinib is being developed by Incyte Corporation, a biopharmaceutical company traded on the NASDAQ under the ticker symbol INCY. The company is conducting a Phase 1 clinical trial of the drug in Chronic Lymphocytic Leukemia.

What phase is Acalabrutinib in?

Acalabrutinib is in Phase 1 clinical development. It is an investigational drug, not yet approved by regulatory authorities, and is being studied in an ongoing clinical trial for Chronic Lymphocytic Leukemia.

What clinical trials is Acalabrutinib in?

Acalabrutinib is being evaluated in a single active Phase 1 trial, NCT05943496, titled 'Tafasitamab, Acalabrutinib, and Obinutuzumab for the Treatment of Previously Untreated Chronic Lymphocytic Leukemia and Small Lymphocytic Lymphoma.' The trial is recruiting 27 participants in the United States.