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Study of ABT-199 (GDC-199) In Patients With Relapsed Or Refractory Waldenström Macroglobulinemia

Phase II Study of ABT-199 (GDC-199) In Patients With Relapsed Or Refractory Waldenström Macroglobulinemia

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02677324
Enrollment
33
Registered
2016-02-09
Start date
2016-05-09
Completion date
2022-02-07
Last updated
2022-05-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Waldenstrom Macroglobulinemia

Keywords

Waldenstrom Macroglobulinemia, WM

Brief summary

This research study is studying a targeted therapy as a possible treatment for relapsed or refractory Waldenstrom's Macroglobulinemia (WM). This study is using the study intervention ABT-199.

Detailed description

This research study is a Phase II clinical trial. ABT-199 is a pill that blocks BCL-2, a protein that is important for the survival of WM cells. The purpose of this research study is to evaluate how well the study drug works and the safety of ABT-199 as a single agent in participants with WM that has come back or has shown no response to previous treatment. The FDA (the U.S. Food and Drug Administration) has not approved ABT-199 as a treatment for any disease.

Interventions

DRUGABT199

Oral BCL-2 antagonist

Sponsors

AbbVie
CollaboratorINDUSTRY
Dana-Farber Cancer Institute
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Clinicopathological diagnosis of Waldenstrom's Macroglobulinemia and meeting criteria for treatment using consensus panel criteria from the Second International Workshop on Waldenstrom's macroglobulinemia (Owen 2003; Kyle 2003). * Measurable disease, defined as presence of serum immunoglobulin M (IgM) with a minimum IgM level of \> 2 times the upper limit of normal of each institution is required. * Have received at least one prior therapy for WM. * Age ≥ 18 years. * ECOG performance status \<2 (see Appendix A). * Participants must have normal organ and marrow function (growth factors cannot be given prophylactically to establish eligibility) as defined below: * Absolute neutrophil count \> 1,000/mm3 * Platelets \> 50,000/mm3 * Hemoglobin \> 8 g/dL * Total bilirubin ≤ 1.5 mg/dL or \< 2 mg/dL if attributable to hepatic infiltration by neoplastic disease * AST (SGOT) and ALT (SGPT) \< 2.5X the institutional upper limit of normal * Creatinine clearance ≥50 ml/min * Not on any active therapy for other malignancies with the exception of topical therapies for basal cell or squamous cell cancers of the skin. * Females of childbearing potential (FCBP) must agree to use two reliable forms of contraception simultaneously or have or will have complete abstinence from heterosexual intercourse during the following time periods related to this study: 1) while participating in the study; and 2) for at least 28 days after discontinuation from the study. Men must agree to use a latex condom during sexual contact with a FCBP even if they have had a successful vasectomy. FCBP must be referred to a qualified provider of contraceptive methods if needed. * Able to adhere to the study visit schedule and other protocol requirements. * Ability to understand and the willingness to sign a written informed consent document.

Exclusion criteria

* Any serious medical condition, laboratory abnormality, uncontrolled intercurrent illness, or psychiatric illness/social condition that would prevent the participant from signing the informed consent form. * Concurrent use of any other anti-cancer agents or treatments or any other study agents. * Prior exposure to ABT-199 or BCL2 inhibitors. * Prior or ongoing clinically significant illness, medical condition, surgical history, physical finding, ECG finding, or laboratory abnormality that, in the investigator's opinion, could affect the safety of the patient, including symptomatic hyperviscosity; alter the absorption, distribution, metabolism or excretion of ABT-199; or impair the assessment of study results. * Grade \> 2 toxicity (other than alopecia) continuing from prior anti-cancer therapy. * Known CNS lymphoma. * Significant cardiovascular disease such as uncontrolled or symptomatic arrhythmias, congestive heart failure, or myocardial infarction within 6 months of screening. * New York Heart Association classification III or IV heart failure. * Malabsorption syndrome, disease significantly affecting gastrointestinal function, or resection of the stomach or small bowel, ulcerative colitis, symptomatic inflammatory bowel disease, or partial or complete bowel obstruction. * Known history of Human Immunodeficiency Virus (HIV), Hepatitis B Virus (HBV), and/or Hepatitis C Virus (HCV) infection. * Lactating or pregnant women. * Inability to swallow tablets. * History of non-compliance to medical regimens. * Unwilling or unable to comply with the protocol.

Design outcomes

Primary

MeasureTime frameDescription
Overall Response Rate2 yearsOverall Response Rate= Minor response (\>25%-50% reduction in serum IgM from baseline) + Partial Response (\>50-90% reduction in serum IgM from baseline) + Very Good Partial Response (\>90% reduction in serum IgM from baseline) + Complete Response (resolution of all symptoms, normalization of serum IgM with disappearance of IgM paraprotein, resolution of any adenopathy or splenomegaly).

Secondary

MeasureTime frameDescription
Number of Participants With Complete Response2 yearsA complete response is defined as having resolution of WM related symptoms, normalization of serum IgM levels with complete disappearance of IgM paraprotein by immunofixation, and resolution of any adenopathy or splenomegaly.
Number of Participants With Very Good Partial Response2 yearsVery Good Partial Response (VGPR): is defined as ≥90% reduction in serum IgM levels, or normalization of serum IgM levels.
Number of Participants With Partial Response2 yearsPartial response (PR) is defined as achieving a ≥50% reduction in serum IgM levels.
Number of Participants With Minor Response2 yearsMinor Response (MR): A minor response (MR) is defined 25-49% reduction in serum IgM levels.
Number of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.02 yearsNumber of participants who experienced an adverse event while on ABT-199
Progression Free Survival4 yearsAmount of time following ABT-199 administration until \>25% increase in serum IgM
Overall Response Rate Among CXCR4 Mutated Participants2 yearsOverall Response Rate for participants who tested positive for a CXCR4 mutation= Minor response (\>25%-50% reduction in serum IgM from baseline) + Partial Response (\>50-90% reduction in serum IgM from baseline) + Very Good Partial Response (\>90% reduction in serum IgM from baseline) + Complete Response (resolution of all symptoms, normalization of serum IgM with disappearance of IgM paraprotein, resolution of any adenopathy or splenomegaly).
Overall Response Rate Among Participants Without CXCR4 Mutations2 yearsOverall Response Rate in participants who tested negative for a CXCR4 mutation= Minor response (\>25%-50% reduction in serum IgM from baseline) + Partial Response (\>50-90% reduction in serum IgM from baseline) + Very Good Partial Response (\>90% reduction in serum IgM from baseline) + Complete Response (resolution of all symptoms, normalization of serum IgM with disappearance of IgM paraprotein, resolution of any adenopathy or splenomegaly).
Number of Participants With Stable Disease2 yearsStable disease is defined as having \<25% increase in serum IgM levels and \<25% reduction in serum IgM levels

Countries

United States

Participant flow

Participants by arm

ArmCount
ABT199
ABT199 will be administered daily, with 28 consecutive days defined as a treatment cycle for a maximum for 26 cycles ABT199: Oral BCL-2 antagonist
33
Total33

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event1
Overall StudyDisease Progression6
Overall StudyIgM Myeloma diagnosis1
Overall StudyInability to Swallow pills1
Overall StudyLack of Efficacy1
Overall StudyMedical insurance coverage1
Overall StudyNon-compliance1

Baseline characteristics

CharacteristicABT199
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
19 Participants
Age, Categorical
Between 18 and 65 years
14 Participants
Age, Continuous66 years
CXCR4 Mutation17 Participants
MYD88 Mutation32 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants
Race (NIH/OMB)
White
30 Participants
Region of Enrollment
United States
33 participants
Sex: Female, Male
Female
14 Participants
Sex: Female, Male
Male
19 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 33
other
Total, other adverse events
33 / 33
serious
Total, serious adverse events
13 / 33

Outcome results

Primary

Overall Response Rate

Overall Response Rate= Minor response (\>25%-50% reduction in serum IgM from baseline) + Partial Response (\>50-90% reduction in serum IgM from baseline) + Very Good Partial Response (\>90% reduction in serum IgM from baseline) + Complete Response (resolution of all symptoms, normalization of serum IgM with disappearance of IgM paraprotein, resolution of any adenopathy or splenomegaly).

Time frame: 2 years

Population: 1 participant was censored from the response analysis after it was determined that he had IgM Myeloma rather than Waldenstrom's macroglobulinemia.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ABT199Overall Response Rate26 Participants
Secondary

Number of Participants With Complete Response

A complete response is defined as having resolution of WM related symptoms, normalization of serum IgM levels with complete disappearance of IgM paraprotein by immunofixation, and resolution of any adenopathy or splenomegaly.

Time frame: 2 years

Population: 1 participant was censored from the response analysis after it was determined that he had IgM Myeloma rather than Waldenstrom's macroglobulinemia.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ABT199Number of Participants With Complete Response0 Participants
Secondary

Number of Participants With Minor Response

Minor Response (MR): A minor response (MR) is defined 25-49% reduction in serum IgM levels.

Time frame: 2 years

Population: 1 participant was censored from the response analysis after it was determined that he had IgM Myeloma rather than Waldenstrom's macroglobulinemia.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ABT199Number of Participants With Minor Response1 Participants
Secondary

Number of Participants With Partial Response

Partial response (PR) is defined as achieving a ≥50% reduction in serum IgM levels.

Time frame: 2 years

Population: 1 participant was censored from the response analysis after it was determined that he had IgM Myeloma rather than Waldenstrom's macroglobulinemia.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ABT199Number of Participants With Partial Response19 Participants
Secondary

Number of Participants With Stable Disease

Stable disease is defined as having \<25% increase in serum IgM levels and \<25% reduction in serum IgM levels

Time frame: 2 years

Population: 1 participant was censored from the response analysis after it was determined that he had IgM Myeloma rather than Waldenstrom's macroglobulinemia.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ABT199Number of Participants With Stable Disease2 Participants
Secondary

Number of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.0

Number of participants who experienced an adverse event while on ABT-199

Time frame: 2 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ABT199Number of Participants With Treatment-related Adverse Events as Assessed by CTCAE v4.033 Participants
Secondary

Number of Participants With Very Good Partial Response

Very Good Partial Response (VGPR): is defined as ≥90% reduction in serum IgM levels, or normalization of serum IgM levels.

Time frame: 2 years

Population: 1 participant was censored from the response analysis after it was determined that he had IgM Myeloma rather than Waldenstrom's macroglobulinemia.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ABT199Number of Participants With Very Good Partial Response6 Participants
Secondary

Overall Response Rate Among CXCR4 Mutated Participants

Overall Response Rate for participants who tested positive for a CXCR4 mutation= Minor response (\>25%-50% reduction in serum IgM from baseline) + Partial Response (\>50-90% reduction in serum IgM from baseline) + Very Good Partial Response (\>90% reduction in serum IgM from baseline) + Complete Response (resolution of all symptoms, normalization of serum IgM with disappearance of IgM paraprotein, resolution of any adenopathy or splenomegaly).

Time frame: 2 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ABT199Overall Response Rate Among CXCR4 Mutated Participants14 Participants
Secondary

Overall Response Rate Among Participants Without CXCR4 Mutations

Overall Response Rate in participants who tested negative for a CXCR4 mutation= Minor response (\>25%-50% reduction in serum IgM from baseline) + Partial Response (\>50-90% reduction in serum IgM from baseline) + Very Good Partial Response (\>90% reduction in serum IgM from baseline) + Complete Response (resolution of all symptoms, normalization of serum IgM with disappearance of IgM paraprotein, resolution of any adenopathy or splenomegaly).

Time frame: 2 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ABT199Overall Response Rate Among Participants Without CXCR4 Mutations13 Participants
Secondary

Progression Free Survival

Amount of time following ABT-199 administration until \>25% increase in serum IgM

Time frame: 4 years

Population: 1 participant was censored from the response analysis after it was determined that he had IgM Myeloma rather than Waldenstrom's macroglobulinemia.

ArmMeasureValue (MEDIAN)
ABT199Progression Free Survival31.5 months

Source: ClinicalTrials.gov · Data processed: Feb 23, 2026