The purpose of this study is to determine whether duvortuxizumab and ibrutinib can be combined safely and to establish the maximum tolerated dose (MTD) in Part 1 and the recommended Phase 2 dose (RP2D) and to further explore the safety of duvortuxizumab in combination with ibrutinib at the RP2D in participants with diffuse large B-cell lymphoma (DLBCL), follicular lymphoma (FL), mantle cell lymphoma (MCL), and chronic lymphocytic leukemia (CLL) in Part 2.
This is an open-label (identity of study drug will be known to participant and study staff), multicenter (when more than one hospital or medical school team work on a medical research study), Phase 1b study. The purpose of this study is to see if duvortuxizumab in combination with ibrutinib is safe and useful for treating participants with B-cell malignancies. This study will be conducted in 2 parts: Part 1: Dose Optimization and Part 2: Dose Expansion. Part 1 will determine what dose of duvortuxizumab can be given safely with the standard dose of ibrutinib to participants with previously treated B-cell malignancies. Part 2 will look at how previously treated DLBCL, FL, MCL, and CLL participants respond to a safe dose of duvortuxizumab in combination with ibrutinib. Part 2 will also test whether the dose from Part 1 is an effective cancer therapy. The study consists of a Screening Phase, an ibrutinib Run-In Phase (Part 2 only), a combination (duvortuxizumab plus ibrutinib) Treatment Phase (Day 1, Cycle 1 and continues until the completion of the End-of-Treatment Visit), End-of-Treatment Visit (30 days (+7 days) after the last dose of study drug), and Post-treatment Follow-up Phase. The end of the study will be defined as 12 months after the last participant has received the first dose of study treatment. Participants' safety will be monitored throughout the study.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Duvortuxizumab will be administered at starting dose of 15 nanogram per kilogram (ng/kg) as an intravenous (IV) infusion during Part 1 (Dose Optimization) and at RP2D level determined in Part 1 during Part 2 (Dose Expansion). Participants will receive duvortuxizumab either with or without a priming dose. Participants who receive a priming dose will have infusions on Days 1, 8, and 22 of an initial 35-day cycle and then on Days 1 and 15 of 28-day cycles thereafter. Participants who do not receive a priming dose will have infusions on Days 1 and 15 of 28-day cycles.
Ibrutinib will be administered at 560 milligram per day (mg/day) orally once daily during Part 1 (Dose Optimization) and at a dose of 420 mg/day (for participants with CLL) or 560 mg/day (for participants with DLBCL, FL, or MCL) during Part 2 (Dose Expansion). In Part 1, ibrutinib will be initiated on Day 1 of the initial treatment cycle. In Part 2, ibrutinib will be initiated on Day -7 prior to the initial treatment cycle.
Part 1: Number of Participants With Dose Limiting Toxicity
Dose limiting toxicity is based on adverse events and includes unacceptable hematologic toxicity, unacceptable non-hematologic toxicity, and laboratory abnormalities of Grade 4 or higher.
Time frame: Approximately 9 months
Part 1 and Part 2: Number of Participants With Adverse Events
An adverse event (AE) is any untoward medical occurrence in a participant who received study treatment without regard to possibility of causal relationship.
Time frame: Approximately 2 years
Part 1 and Part 2: Number of Participants With Serious Adverse Events
A serious adverse event (SAE) is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital abnormality.
Time frame: Approximately 2 years
Part 1 and Part 2: Change in Clinical Laboratory Values From Baseline
Standard clinical chemistry and hematology panels will be used to evaluate changes in laboratory parameters in blood samples collected pre- and post-treatment.
Time frame: Baseline and 2 years
Part 1 and Part 2: Area Under the Serum Concentration-Time Curve From Time [0 to t] (AUC[0-t]) of Duvortuxizumab
The AUC\[0-t\] is the area under the duvortuxizumab serum concentration-time curve from time \[0 to t\].
Time frame: Approximately 2 years
Part 1 and Part 2: Area Under the Serum Concentration-Time Curve From Time [0 to t] (AUC[0-t]) of Ibrutinib
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
The AUC\[0-t\] is the area under the ibrutinib serum concentration-time curve from time \[0 to t\].
Time frame: Approximately 2 years
Part 1 and 2: Maximum Serum Concentration (Cmax) of Duvortuxizumab
The Cmax is the maximum observed serum concentration of duvortuxizumab.
Time frame: Approximately 2 years
Part 1 and 2: Maximum Serum Concentration (Cmax) of Ibrutinib
The Cmax is the maximum observed serum concentration of ibrutinib.
Time frame: Approximately 2 years
Part 1 and 2: Half-Life (t1/2) of Duvortuxizumab
The elimination half-life (t1/2) is the time measured for the plasma concentration to decrease by 1 half to its original concentration.
Time frame: Approximately 2 years
Part 1 and 2: Half-Life (t1/2) of Ibrutinib
The elimination half-life (t1/2) is the time measured for the plasma concentration to decrease by 1 half to its original concentration.
Time frame: Approximately 2 years
Part 1 and 2: Total Systemic Clearance (CL) of Duvortuxizumab
The CL is a quantitative measure of the rate at which duvortuxizumab is removed from the body.
Time frame: Approximately 2 years
Part 1 and 2: Total Systemic Clearance (CL) of Ibrutinib
The CL is a quantitative measure of the rate at which ibrutinib is removed from the body.
Time frame: Approximately 2 years
Part 1 and 2: Volume of Distribution at Steady-State (Vss) of Duvortuxizumab
The Vss is defined as the theoretical volume in which the total amount of duvortuxizumab would be uniformly distributed to produce the desired serum concentration of duvortuxizumab at steady state.
Time frame: Approximately 2 years
Part 1 and 2: Volume of Distribution at Steady-State (Vss) of Ibrutinib
The Vss is defined as the theoretical volume in which the total amount of ibrutinib would be uniformly distributed to produce the desired serum concentration of Ibrutinib at steady state.
Time frame: Approximately 2 years
Part 1 and Part 2: Number of Participants with Anti-Duvortuxizumab Antibodies
Plasma levels of antibodies to duvortuxizumab will be assessed for evaluation of potential immunogenicity.
Time frame: Approximately 2 years
Part 1 and Part 2: Objective Tumor Response
Objective tumor response is represented by participants who achieve a complete response (CR) or partial response (PR) to study treatment per the criteria for response assessment of Non-Hodgkin's Lymphoma (participants with diffuse large B-cell lymphoma \[DLBCL\], follicular lymphoma \[FL\], and mantle cell lymphoma \[MCL\]) or the International Workshop on chronic lymphocytic leukemia Criteria (IWCLL) (participants with CLL)
Time frame: Approximately 2 years
Part 1 and Part 2: Number of Participants With Complete Response (CR)
The CR rate is frequency of participants who achieve a complete response to study treatment according to the Criteria for Response Assessment of Non-Hodgkin's Lymphoma (participants with DLBCL, FL, and MCL) or the IWCLL Criteria (for participants with CLL).
Time frame: Approximately 2 years
Part 1 and Part 2: Duration of Response
The Duration of Response is defined as the time from the first observed response (CR or partial response \[PR\]) to documented disease progression or death due to any cause.
Time frame: Approximately 2 years
Part 1 and Part 2: 1-year Progression Free Survival (PFS)
Progression free survival is defined as the time from first enrollment into the study to documented disease progression or death due to any cause.
Time frame: 1 year
Part 1 and Part 2: 1-year Overall Survival
One-year survival is defined as the percentage of participants surviving 1 year after entering into the study.
Time frame: 1 year