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Acalabrutinib

Phase 2

Chronic Lymphocytic Leukemia | Small molecule | Oncology |TG Therapeutics, Inc.|Last Updated: Feb 25, 2026

Target and mechanism

Molecular targetBTK
Target classInhibitor
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment29

FDA Designations

No designations recorded

Clinical trial landscape

Acalabrutinib · 1 trial · 4 indications

Phase 2 1
NCT04624633Acalabrutinib, Umbralisib, and Ublituximab (AU2) In Relapsed and Untreated CLLChronic Lymphocytic Leukemia
ACTIVE NOT_RECRUITING29 Analytics
PHASE2ACTIVE NOT_RECRUITING
Acalabrutinib, Umbralisib, and Ublituximab (AU2) In Relapsed and Untreated CLL
Chronic Lymphocytic LeukemiaUnlock trial analytics

Study Endpoints

Primary Endpoints

Complete Remission (CR) Rate After 24 Cycles
According to this endpoint is after 24 cycles. Overall median number of cycles is 24 with range 1-25.

The CR Rate is defined as the proportion of participants achieving complete remission (CR) based on 2018 IW-CLL criteria.

Secondary Endpoints

Partial Remission (PR) Rate After 24 Cycles
According to this endpoint is after 24 cycles. Overall median number of cycles is 24 with range 1-25.
Median Progression-Free Survival (PFS)
Disease will be evaluated through imaging at cycle 1 day 1, 8, and 15, cycle 2-6 and cycle 8-25 day 1, and cycle 7 day 1, 2 and 8. Observation on treatment up to approximately 25 cycles. In long-term follow-up, survival follow-up up to 5 years.
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Cohort 1-Relapsed DiseaseEXPERIMENTALParticipants with relapsed disease * Treatment with Acalabrutinib \& Umbralisib beginning C1D1, * Ublituximab beginning C7D1 * Assessment of treatment response * Treatment continues for a maximum of 24 cycles. Participants followed post treatment for a maximum of 5 years
Cohort 2-Treatment NaiveEXPERIMENTALParticipants with previously untreated disease * Treatment with Acalabrutinib \& Umbralisib beginning C1D1, * Ublituximab beginning C7D1 * Assessment of treatment response * Treatment continues for a maximum of 24 cycles. Participants followed post treatment for a maximum of 5 years

Interventions

NameTypeDescription
AcalabrutinibDRUGOral, twice a day, predetermined dosage
UmbralisibDRUGOral, once a day, predetermined dosage, each 28 day cycle up to 24 cycles
UblituximabDRUG28 day cycle, starting cycle 7 via iv, on at predetermined dosage and timepoints in each cycle
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Eligibility Criteria

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

Inclusion Criteria: * Confirmed diagnosis of chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) per International Workshop on CLL (iwCLL) 2018 criteria.1 * Participants must have an indication for treatment as defined by iwCLL 2018 criteria.1 * Participants must have measurable ...

Countries:United States
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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 2 clinical development, evaluated in combination with umbralisib and ublituximab for patients with relapsed, refractory, or untreated CLL.

What does Acalabrutinib target?

Acalabrutinib is a kinase inhibitor, belonging to the -tinib class of drugs. It is being studied for its role in targeting kinases involved in cancer cell signaling, specifically in the context of Chronic Lymphocytic Leukemia.

Who makes Acalabrutinib?

Acalabrutinib is being developed by TG Therapeutics, Inc., a biopharmaceutical company traded on the NASDAQ under the ticker symbol TGTX. The company is conducting clinical trials to evaluate the drug's safety and efficacy in patients with Chronic Lymphocytic Leukemia.

What phase is Acalabrutinib in?

Acalabrutinib is currently in Phase 2 clinical development. It is an investigational drug, meaning it has not yet been approved by regulatory authorities. The ongoing trial is active but not recruiting participants, with a total enrollment of 29 patients.

What clinical trials is Acalabrutinib in?

Acalabrutinib is being studied in a Phase 2 clinical trial with the identifier NCT04624633. The trial, titled 'Acalabrutinib, Umbralisib, and Ublituximab (AU2) In Relapsed and Untreated CLL,' is enrolling patients with Chronic Lymphocytic Leukemia, Small Lymphocytic Lymphoma, and relapsed or refractory CLL in the United States.

Is Acalabrutinib the same as AU2?

Acalabrutinib is not the same as AU2. AU2 is the name of the combination regimen being studied in the clinical trial, which includes acalabrutinib, umbralisib, and ublituximab. Acalabrutinib is one component of this three-drug combination being evaluated for Chronic Lymphocytic Leukemia.