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Study identifier: NCT06428019 Synced from ClinicalTrials.gov · August 08, 2026
● Study status: Recruiting

A Study to Evaluate the Risk of Tumor Lysis Syndrome (TLS) in Adult Participants Receiving Oral Venetoclax in Combination With Intravenously Infused Obinutuzumab or Oral Acalabrutinib for Previously Untreated Chronic Lymphocytic Leukemia (CLL)

Condition: Chronic Lymphocytic Leukemia  ·  Sponsor: AbbVie

PhasePhase 3
Planned participants170
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNoCheck eligibility criteria ↓
Where70 locations · 9 countries

Interested? Contact the study team ↓

Sponsor, CRO or site team? See where this study is running → — listed sites, countries and recruiting context. Everything below is written for patients and caregivers.

About this study

Chronic lymphocytic leukemia (CLL) is the most common leukemia (cancer of blood cells). The purpose of this study is to assess the safety of venetoclax in combination with obinutuzumab or acalabrutinib in the treatment of CLL. Adverse events and change in disease activity will be assessed. Venetoclax in combination with obinutuzumab or acalabrutinib is being investigated in the treatment of CLL. Study doctors put the participants in 1 of 4 groups, called treatment arms. Participants will receive oral venetoclax in combination with intravenously (IV) infused obinutuzumab or oral acalabrutinib at in different dosing schemes as part of treatment. Approximately 170 adult participants with CLL who are being treated with venetoclax will be enrolled in the study in approximately 80 sites worldwide. Participants in Arm A will receive oral venetoclax in combination with IV infused obinutuzumab, with a 5 week venetoclax ramp up. Participants in Arm B will receive oral venetoclax in combination with oral acalabrutinib, with a 5 week venetoclax ramp up. Participants in Arm C and Arm D will receive oral venetoclax in combination with oral acalabrutinib, with differing venetoclax ramp up periods. The total study duration is approximately 28 months. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical a…

This description comes directly from the study's public registry record.

Talk to the study team

ABBVIE CALL CENTER  ·  844-663-3742  ·  abbvieclinicaltrials@abbvie.com

There is no obligation to join — the study team can answer your questions about taking part.

Always discuss trial participation with your own doctor first.

Full eligibility criteria (exactly as the study team wrote them)

Inclusion Criteria: * Diagnosis of documented, previously untreated, chronic lymphocytic leukemia (CLL) requiring treatment according to the 2018 international workshop on chronic lymphocytic leukemia (iwCLL) criteria and have a life expectancy of \> 6 months. * Previously untreated small lymphocytic lymphoma (SLL) meeting the 2018 iwCLL criteria for treatment will also be equally considered as CLL for eligibility, screening, treatment and evaluation. * Eastern Cooperative Oncology Group (ECOG) performance status \<= 2. * Adequate marrow function independent of growth factor or transfusion support within 2 weeks of screening, unless cytopenia is due to marrow involvement of CLL as listed in the protocol. * Creatinine clearance (CrCl) \>= 30 mL/min using the Cockcroft-Gault formula are eligible for inclusion. Exclusion Criteria: \- Active/uncontrolled infection, no Richter's transformation, no active immune thrombocytopenia.

Reproduced word-for-word from the public registry record — the study team can answer questions about it.

Locations (70)

Arizona Oncology - Tucson - Rudasill /ID# 267552Tucson, Arizona, United StatesRecruiting
Southern VA Health Care System /ID# 266254Tucson, Arizona, United StatesRecruiting
UCSF FRESNO/Community Cancer Institute /ID# 270874Clovis, California, United StatesRecruiting
Valkyrie Clinical Trials /ID# 268151Los Angeles, California, United StatesRecruiting
Rocky Mountain Cancer Centers - Aurora /ID# 267549Aurora, Colorado, United StatesRecruiting
Yale University School of Medicine /ID# 266224New Haven, Connecticut, United StatesRecruiting
Malcolm Randall V.A. Medical Center /ID# 267825Gainesville, Florida, United StatesRecruiting
Cancer Specialists of North Florida - Jacksonville - AC Skinner Parkway /ID# 266713Jacksonville, Florida, United StatesRecruiting
Mid Florida Hematology And Oncology Center /ID# 269159Orange City, Florida, United StatesRecruiting
Comprehensive Hematology Oncology /ID# 267644St. Petersburg, Florida, United StatesRecruiting
Springfield Clinic - First /ID# 270145Springfield, Illinois, United StatesRecruiting
Northwest Cancer Center - Dyer Clinic /ID# 268478Dyer, Indiana, United StatesRecruiting

+ 58 more locations — full list on the registry record.

More studies in these areas

This study lists sites in the areas below. Each link shows other recruiting studies near that city, from the public registry record.

TucsonClovisLos AngelesAurora

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