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Venetoclax

Phase 2

Chronic Lymphocytic Leukemia | Small molecule | Oncology |Meridian Bioscience Inc|Last Updated: Apr 6, 2026

Target and mechanism

Molecular targetBCL2
Target classInhibitor
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment25

FDA Designations

No designations recorded

Clinical trial landscape

Venetoclax · 1 trial · 1 indication

Phase 2 1
NCT03467867A Study of Venetoclax and Rituximab/Hyaluronidase Human in Relapsed/Refractory CLLChronic Lymphocytic Leukemia
ACTIVE NOT_RECRUITING25 Analytics
PHASE2ACTIVE NOT_RECRUITING
A Study of Venetoclax and Rituximab/Hyaluronidase Human in Relapsed/Refractory CLL
Chronic Lymphocytic LeukemiaUnlock trial analytics

Study Endpoints

Primary Endpoints

Overall Response Rate (ORR)
Baseline up to disease progression or death, whichever occurs first (up to approximately 5 years)

Percentage of Participants With Best Overall Response (OR)(Defined as Complete Response \[CR\], Initial CR \[CRi\], Nodular Partial Response \[nPR\], PR) as Assessed by Investigator Determined Using iwCLL Guidelines

Secondary Endpoints

Disease Response
12 weeks after Day 1 of last cycle of combination therapy (approximately 5 years, cycle length= 28 days)
Duration of Responses (DOR)
Baseline up to disease progression or death, whichever occurs first (up to approximately 5 years)
Time to Progression (TTP)
Baseline up to disease progression or death, whichever occurs first (up to approximately 5 years)
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Venetoclax + RituximabEXPERIMENTALParticipants will be initially placed in a venetoclax 5 weeks ramp-up period, and will be administered an initial 20 mg oral tablet dose once daily (QD), incrementing weekly up to a maximum dose of 400 mg. Participants will then continue taking venetoclax 400 mg QD from Week 5 onwards, as directed by the investigator in combination with rituximab 375 mg/m\^2 IV on Day 1 of Cycle 1 followed by 13.4 mL of rituximab SC 1,600 mg/26,800 Units vial (1,600 mg rituximab and 26,800 Units hyaluronidase human) on Day 1 of Cycle 2-6.

Interventions

NameTypeDescription
VenetoclaxDRUGVenetoclax will be administered as described in the reporting arm.
RituximabDRUGRituximab (IV) will be administered as described in the reporting arm.
Rituximab/Hyaluronidase HumanDRUGRituximab/Hyaluronidase Human (SC) ill be administered as described in the reporting arm.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites2

Inclusion Criteria: * Signed Informed Consent Form * Ability and willingness to comply with the requirements of the study protocol * Patient must have diagnosis of CLL that meets published 2008 IWCLL NCI-WG criteria. * Patient must have relapsed/refractory disease with an indication for treatment. ...

Countries:United States
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Frequently asked questions about Venetoclax

What is Venetoclax used for in Chronic Lymphocytic Leukemia?

Venetoclax is being studied for the treatment of Chronic Lymphocytic Leukemia (CLL). It is an investigational small molecule in Phase 2 clinical development for this indication. The drug is being evaluated in patients with relapsed or refractory CLL, meaning the disease has returned or has not responded to prior treatment.

What does Venetoclax target?

Venetoclax targets the B-cell lymphoma 2 (BCL-2) protein, which plays a role in cancer cell survival. By inhibiting BCL-2, the drug is designed to promote apoptosis, or programmed cell death, in cancer cells. This mechanism is being studied in the context of Chronic Lymphocytic Leukemia.

Who makes Venetoclax?

Venetoclax is being developed by Meridian Bioscience Inc, a company traded on the stock exchange under the ticker VIVO. The company is conducting clinical research on this drug for the treatment of Chronic Lymphocytic Leukemia.

What phase is Venetoclax in?

Venetoclax is currently in Phase 2 clinical development. It is an investigational drug, meaning it has not yet been approved by regulatory authorities. The ongoing Phase 2 trial is studying the drug in patients with relapsed or refractory Chronic Lymphocytic Leukemia.

What clinical trials is Venetoclax in?

Venetoclax is being studied in a Phase 2 clinical trial with the identifier NCT03467867. The trial is titled 'A Study of Venetoclax and Rituximab/Hyaluronidase Human in Relapsed/Refractory CLL' and is active but not recruiting participants. The study is enrolling 25 patients with Chronic Lymphocytic Leukemia in the United States.

Is Venetoclax the same as any other drug?

Venetoclax is also known by the brand name Venclexta. In clinical trials, it is sometimes referred to by its investigational name ABT-199. These names refer to the same drug, which is being studied for the treatment of Chronic Lymphocytic Leukemia.