A Study in Previously Untreated Chronic Lymphocytic Leukemia (CLL) Subjects, Excluding Those With the 17p Deletion, to Evaluate Debulking Regimens Prior to Initiating Venetoclax Combination Therapy
![]() |
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT03406156 |
Recruitment Status :
Active, not recruiting
First Posted : January 23, 2018
Last Update Posted : January 13, 2022
|
- Study Details
- Tabular View
- No Results Posted
- Disclaimer
- How to Read a Study Record
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Chronic Lymphocytic Leukemia (CLL) Small Lymphocytic Lymphoma (SLL) | Drug: Obinutuzumab Drug: Bendamustine Drug: Venetoclax | Phase 3 |
Expanded Access : An investigational treatment associated with this study is available outside the clinical trial. More info ...
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 120 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Phase 3b Study in Previously Untreated Chronic Lymphocytic Leukemia (CLL) Subjects, Excluding Those With the 17p Deletion, to Evaluate Debulking Regimens Prior to Initiating Venetoclax Combination Therapy |
Actual Study Start Date : | August 10, 2018 |
Actual Primary Completion Date : | October 12, 2021 |
Estimated Study Completion Date : | July 19, 2023 |

Arm | Intervention/treatment |
---|---|
Experimental: Obinutuzumab +/- bendamustine then obinutuzumab + venetoclax
Debulking Period: Obinutuzumab with or without bendamustine (bendamustine administered in participants with high tumor load as described in the protocol) during the debulking period (up to 6 cycles). Treatment Period: Venetoclax + obinutuzumab regimen initiated when participant achieves low tumor burden during debulking period, or if the participant has not achieved low tumor burden status after 6 cycles of debulking, the participant may proceed to venetoclax per the discretion of the treating provider after discussion with the study physician. During this regimen period, participants to receive obinutuzumab in combination with venetoclax for 5 months then venetoclax therapy alone to continue for a total duration of up to 53 weeks. |
Drug: Obinutuzumab
intravenous
Other Name: Gazyva Drug: Bendamustine intravenous
Other Name: Bendeka Drug: Venetoclax tablet
Other Names:
|
- Percent of Participants Achieving Low Tumor Burden Status with induction of Obinutuzumab or Obinutuzumab plus Bendamustine (Debulking Period) [ Time Frame: Up to approximately 24 weeks after initial dose of study drug ]Low tumor burden is defined by peripheral lymphocyte counts of < 25,000 and all lymph nodes < 5 cm per CT scans.
- Complete Remission Rate (CR) and Complete Remission with Incomplete Marrow Recovery (CRi) [ Time Frame: Up to approximately 65 weeks after initial dose of venetoclax ]Defined as the proportion of subjects who achieved CR or CRi (per the 2008 Modified International Workshop on Chronic Lymphocytic Leukemia National Cancer Institute-sponsored Working Group [IWCLL NCI-WG] criteria).
- Overall Response Rate (ORR) [ Time Frame: Up to approximately 3.5 years after initial dose of study drug ]ORR is defined as the proportion of participants with an overall response (CR, CRi, nodular partial remission [nPR] plus partial remission [PR]) per the 2008 Modified IWCLL NCI-WG criteria.
- Duration of Response (DoR) [ Time Frame: Up to approximately 3.5 years after initial dose of study drug ]DOR defined as the number of days from the date of first response (CR, CRi, nPR, or PR) (per the 2008 Modified IWCLL NCI-WG criteria) to the date of disease progression or death. All disease progression will be included regardless whether the event occurred during or after the participant was taking any study drug (either venetoclax, obinutuzumab, or bendamustine).
- Progression-Free Survival (PFS) [ Time Frame: Up to approximately 3.5 years after initial dose of study drug ]PFS is defined as the number of days from the date of first dose of any study drug (either venetoclax, obinutuzumab, or bendamustine) to the date of disease progression or death, whichever occurs first. All disease progression will be included regardless whether the event occurred during or after the participant was taking any study drug.
- Time to Progression (TTP) [ Time Frame: Up to approximately 3.5 years after initial dose of study drug ]TPP is defined as the number of days from the date of first dose of any study drug (either venetoclax, obinutuzumab, or bendamustine) to date of disease progression. All disease progression will be included regardless whether the event occurred during or after the participant was taking any study drug.
- Overall Survival (OS) [ Time Frame: Up to approximately 3.5 years after initial dose of study drug ]OS is defined as number of days from the date of first dose of any study drug (either venetoclax, obinutuzumab, or bendamustine) to the date of death.
- Undetectable Minimal Residual Disease (UMRD) Rate [ Time Frame: Up to approximately 3.5 years after initial dose of study drug ]UMRD defined as less than one CLL cell per 10,000 leukocytes (or below 10^-4). Rate of UMRD status will be defined as the percentage of participants who have UMRD.

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years to 99 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Adequate hematology, kidney and liver function as described in the protocol.
- Diagnosis of previously untreated chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) according to 2008 Modified International Workshop on Chronic Lymphocytic Leukemia National Cancer Institute-sponsored Working Group (IWCLL NCI-WG) criteria.
- Eastern Cooperative Oncology Group (ECOG) performance score of 0 - 1.
- CLL requires treatment according to the IWCLL criteria.
- Medium tumor burden (any lymph node [LN] 5 to < 10 cm OR absolute lymphocyte count [ALC] >= 25 × 10^9/L) OR High tumor burden (any LN >= 10 cm OR ALC >= 25 × 10^9/L and LN >= 5 cm).
Exclusion Criteria:
- Presence of 17p deletion at Screening.
- Richter's syndrome (transformation of CLL/SLL to aggressive non-Hodgkin's lymphoma or Hodgkin's lymphoma).
- Prolymphocytic leukemia.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03406156
United States, Arizona | |
Arizona Oncology Associates, PC-HOPE /ID# 202335 | |
Tempe, Arizona, United States, 85284-1812 | |
United States, Colorado | |
Rocky Mountain Cancer Centers - Denver Midtown /ID# 202328 | |
Denver, Colorado, United States, 80218 | |
United States, Missouri | |
MidAmerica Division, Inc. /ID# 201099 | |
Kansas City, Missouri, United States, 64132 | |
United States, Ohio | |
Oncology Hematology Care, Inc - Kenwood /ID# 202397 | |
Cincinnati, Ohio, United States, 45236-2725 | |
United States, Oregon | |
Willamette Valley Cancer Institute /ID# 201201 | |
Eugene, Oregon, United States, 97401-6043 | |
United States, South Carolina | |
Prisma Health Cancer Inst - Eastside /ID# 202329 | |
Greenville, South Carolina, United States, 29615 | |
United States, Tennessee | |
Tennessee Oncology - Chattanooga /ID# 202840 | |
Chattanooga, Tennessee, United States, 37404-1108 | |
Tennessee Oncology-Nashville Centennial /ID# 201098 | |
Nashville, Tennessee, United States, 37203-1632 | |
United States, Texas | |
Texas Oncology - Austin Midtown /ID# 201199 | |
Austin, Texas, United States, 78705 | |
Texas Oncology - Beaumont /ID# 202359 | |
Beaumont, Texas, United States, 77701-4691 | |
Texas Oncology - Medical City Dallas /ID# 201196 | |
Dallas, Texas, United States, 75230 | |
Texas Oncology - McAllen /ID# 202331 | |
McAllen, Texas, United States, 78503 | |
Texas Oncology - San Antonio Medical Center /ID# 202332 | |
San Antonio, Texas, United States, 78240-5251 | |
Texas Oncology - Tyler /ID# 201211 | |
Tyler, Texas, United States, 75702 | |
United States, Washington | |
Northwest Cancer Specialists, P.C. /ID# 201198 | |
Vancouver, Washington, United States, 98684 |
Study Director: | ABBVIE INC. | AbbVie |
Responsible Party: | AbbVie |
ClinicalTrials.gov Identifier: | NCT03406156 |
Other Study ID Numbers: |
M16-788 |
First Posted: | January 23, 2018 Key Record Dates |
Last Update Posted: | January 13, 2022 |
Last Verified: | January 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | AbbVie is committed to responsible data sharing regarding the clinical trials we sponsor. This includes access to anonymized, individual and trial-level data (analysis data sets), as well as other information (e.g., protocols and clinical study reports), as long as the trials are not part of an ongoing or planned regulatory submission. This includes requests for clinical trial data for unlicensed products and indications. |
Supporting Materials: |
Study Protocol Statistical Analysis Plan (SAP) Clinical Study Report (CSR) |
Time Frame: | Data requests can be submitted at any time and the data will be accessible for 12 months, with possible extensions considered. |
Access Criteria: | Access to this clinical trial data can be requested by any qualified researchers who engage in rigorous, independent scientific research, and will be provided following review and approval of a research proposal and Statistical Analysis Plan (SAP) and execution of a Data Sharing Agreement (DSA). For more information on the process, or to submit a request, visit the following link. |
URL: | https://www.abbvie.com/our-science/clinical-trials/clinical-trials-data-and-information-sharing/data-and-information-sharing-with-qualified-researchers.html |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
Cancer Chronic Lymphocytic Leukemia 17p Deletion debulking obinutuzumab |
bendamustine tumor lysis syndrome venetoclax Small Lymphocytic Lymphoma |
Leukemia Leukemia, Lymphoid Leukemia, Lymphocytic, Chronic, B-Cell Neoplasms by Histologic Type Neoplasms Lymphoproliferative Disorders Lymphatic Diseases Immunoproliferative Disorders Immune System Diseases |
Leukemia, B-Cell Bendamustine Hydrochloride Venetoclax Obinutuzumab Antineoplastic Agents, Alkylating Alkylating Agents Molecular Mechanisms of Pharmacological Action Antineoplastic Agents Antineoplastic Agents, Immunological |