Daratumumab Plus Ibrutinib in Patients With Waldenstrӧm's Macroglobulinemia

  • STATUS
    Recruiting
  • End date
    Oct 27, 2024
  • participants needed
    24
  • sponsor
    Weill Medical College of Cornell University
Updated on 17 February 2022
measurable disease
cytopenia
human chorionic gonadotropin
neutrophil count
ibrutinib
igm level

Summary

This study evaluates the safety and efficacy of daratumumab in combination with ibrutinib in patients with Waldenstrm's macroglobulinemia (WM). The study will evaluate this combination in two cohorts. Cohort A will comprise of ibrutinib nave WM patients. Patients in this cohort may be treatment nave or relapsed but who remain ibrutinib nave. Cohort B will comprise of patients who are currently receiving ibrutinib but whose response to treatment has plateaued. In this cohort, daratumumab will be added on to ibrutinib in an attempt to deepen response.

Description

This is a multi-center, two cohort Phase 2 clinical trial investigating the effectiveness of adding daratumumab to ibrutinib in WM patients. Cohort A will consist of patients who are ibrutinib nave and appropriate for ibrutinib based treatment. Cohort B will consist of patients who have achieved a response plateau less than a complete remission (CR) on single agent ibrutinib. Subjects in Cohort A will be identified by their treating physician and eligible for enrollment if they are treatment nave or relapsed after 1 prior therapy for WM and eligible for ibrutinib based treatment.

Subjects in Cohort B will be identified by their treating physician and eligible for enrollment if they have had at least 6 months of exposure to single agent ibrutinib and demonstrate an IgM response plateau defined by two IgM measurements, at least 8 weeks apart that have changed <15% from the previous mark. In Cohort B response assessment will be measured from initial IgM level prior to ibrutinib initiation.

Enrolled subjects will be prescribed commercial ibrutinib, 420mg PO daily. The investigational agent, daratumumab will be administered based on FDA approved dosing in multiple myeloma (16mg/kg) with 8 weekly induction treatments during Cycles 1 and 2, followed by every other week dosing for Cycles 3-6, then monthly dosing from Cycle 7 until Cycle 25 at which point subjects will continue with ibrutinib as monotherapy until Cycle 52 (4 years total) which is the predefined study completion for enrolled subjects at which point they will complete follow-up. Study visits and response assessments with IgM measurements will occur with each cycle for the first year then every three cycles after cycle 13. Subjects with measureable extramedullary disease will have CT scans every 6 cycles until radiographic CR. Patients will be considered evaluable for response if they completed the initial 8 weeks of daratumumab induction therapy and evaluable for toxicity if receiving one dose of daratumumab. Patients will continue on combination therapy for 2 years or until disease progression or unacceptable toxicities at which point subjects will come off trial. Patients achieving a CR after two years of combination therapy will be given an option to continue with single agent commercial ibrutinib.

Details
Condition Waldenstrom Macroglobulinemia, Waldenstrom's Disease, Waldenström; Hypergammaglobulinemia, Waldenstrom's Macroglobulinemia Recurrent, Waldenstrom's Macroglobulinemia of Lymph Nodes, Waldenstrom's Macroglobulinaemia, Without Mention of Remission, Waldenstrom's Macroglobulinemia Refractory
Treatment Ibrutinib, Daratumumab
Clinical Study IdentifierNCT03679624
SponsorWeill Medical College of Cornell University
Last Modified on17 February 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Subjects must have a diagnosis of WM and meet the requirements for active therapy as defined by the 2nd International Workshop on Waldenstrom's Macroglobulinemia
Age 18 years of age
Ibrutinib nave or previously treated patients currently on ibrutinib with a plateau in disease response are eligible to participate
Ibrutinib nave subjects may be either treatment nave or previously treated but ibrutinib nave to enter cohort A
Subjects entering cohort B must have a plateau response on ibrutinib defined as 6 months of ibrutinib treatment with 2 IgM measurements at least 2 months apart with 15% change from the previous measurement. Subjects with IgM level < 0.7 g/dL will be eligible if their IgM level increases < 0.15 g/dL over two subsequent IgM measurements as defined above
Subjects must have measurable disease defined by a serum IgM level 0.5g/dL
Eastern Cooperative Oncology Group performance status of 0-2
Hematology values must be within the following limits
Absolute neutrophil count (ANC) 1000/mm3 independent of growth factor support for 7 days of study entry if cytopenias are due to marrow involvement
Platelets 50,000/mm3 independent of transfusion support within 7 days of study entry. TPO mimetics are not allowed to meet eligibility criteria
Hemoglobin 8g/dL, independent of transfusion support within 7 days of study entry
Biochemical values within the following limits: d. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) 3 x upper limit of normal (ULN) e. Total bilirubin 2 x ULN unless bilirubin rise is due to Gilbert's syndrome or of non-hepatic origin f. Creatinine clearance (CLcr) > 25 ml/min
Women of childbearing potential and men who are sexually active must be practicing a highly effective method of birth control during and after the study consistent with local regulations regarding the use of birth control methods for subjects participating in clinical trials. Men must agree to not donate sperm during and after the study. For females, these restrictions apply for 1 month after the last dose of study drug. For males, these restrictions apply for 3 months after the last dose of study drug
Women of childbearing potential must have a negative serum (beta-human chorionic gonadotropin (beta-hCG) or urine beta hCG pregnancy test at Screening. Women who are pregnant or breastfeeding are ineligible for this study
Subjects must be able to sign (or their legally-acceptable representatives must sign) an informed consent indicating that they understand the rational of the study and can participate in all study procedures

Exclusion Criteria

Subject does not have a recorded IgM level recorded within 3 months prior to ibrutinib initiation
Subject meeting definition of disease progression while on ibrutinib. Subjects with IgM levels < 0.7gdL are given special consideration. Please see inclusion criteria for 2b
Subjects in cohort B experiencing ongoing non hematologic toxicities attributable to ibrutinib > Grade 1 will be excluded from study entry
Major surgery or a wound that has not fully healed within 4 weeks of enrollment
Evidence of disease transformation at time of enrollment
Waldenstrom's complicated by amyloidosis
Known central nervous system lymphoma
History of stroke or intracranial hemorrhage within 6 months prior to randomization
Requires anticoagulation with warfarin or equivalent vitamin K antagonists (eg, phenprocoumon)
Requires chronic treatment with strong CYP3A inhibitors. Subjects that required strong CYP3A inhibitors but completed a course of treatment can be considered for enrollment after a washout period of 14 days prior to study drug administration
Requires strong CYP3A inducers. Subjects that required strong CYP3A inducers but completed a course of treatment can be considered for enrollment after a washout period of 14 days prior to study drug administration
Patients with history of Chronic Obstructive Pulmonary Disease or Reactive Airway disease must have PFTs with FEV1 calculated. Patients with a FEV1 50% of predicted normal will be excluded
Clinically significant cardiovascular disease such as uncontrolled or symptomatic arrhythmias, congestive heart failure, or myocardial infarction within 6 months of Screening, or any Class 3 (moderate) or Class 4 (severe) cardiac disease as defined by the New York Heart Association Functional Classification
Vaccinated with live, attenuated vaccines within 4 weeks of randomization
Seropositive for human immunodeficiency virus (HIV)
Seropositive for hepatitis B (defined by a positive test for hepatitis B surface antigen [HBsAg]). Subjects with resolved infection (i.e., subjects who are HBsAg negative but positive for antibodies to hepatitis B core antigen [anti-HBc] and/or antibodies to hepatitis B surface antigen [anti-HBs]) must be screened using real-time polymerase chain reaction (PCR) measurement of hepatitis B virus (HBV) DNA levels. Those who are PCR positive will be excluded. EXCEPTION: Subjects with serologic findings suggestive of HBV vaccination (anti-HBs positivity as the only serologic marker) AND a known history of prior HBV vaccination, do not need to be tested for HBV DNA by PCR
Seropositive for hepatitis C (except in the setting of a sustained virologic response [SVR], defined as aviremia at least 12 weeks after completion of antiviral therapy)
Any life-threatening illness, medical condition, or organ system dysfunction which, in the investigator's opinion, could compromise the subject's safety, interfere with the absorption or metabolism of ibrutinib capsules, or put the study outcomes at undue risk
Active malignancy not treated with curative intent within 2 years of study entry. Nonmelanotic skin cancers and cervical carcinoma in situ are excluded from this criteria
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