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A Phase II Study Using Rituximab Plus Venetoclax in the Front Line Treatment of Marginal Zone Lymphoma

A Phase II Study Using Rituximab Plus Venetoclax in the Front Line Treatment of Marginal Zone Lymphoma

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04416451
Enrollment
6
Registered
2020-06-04
Start date
2021-05-04
Completion date
2027-06-01
Last updated
2026-07-06

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

Conditions

Marginal Zone Lymphoma

Keywords

Rituximab, Venetoclax, 20-115

Brief summary

This study will help researchers understand how effective the combination of venetoclax and rituximab is in treating MZL in people who have not received a previous treatment for their cancer.

Interventions

DRUGRituximab

Induction:Rituximab will be administered per institutional guidelines once per week for 4 weeks at a dose of 375 mg/m\^2. Maintenance: In addition, patients will receive rituximab 375 mg/m2 starting on day 1 of the maintenance phase and repeated once every 3 months for 12 months (for a total of 4 infusions). On days when venetoclax and rituximab will both be administered, patients will take venetoclax prior to administration of rituximab.

DRUGVenetoclax

Induction: Starting one week after the last induction dose of rituximab (approximately week 5), venetoclax will be administered orally at a flat dose of 100 mg daily and escalating each week to a target dose of 800 mg daily on the following schedule: * Week 1: 100 mg * Week 2: 200 mg * Week 3: 400 mg * Week 4: 800 mg Maintenance: Following the 4-week induction phase ramp-up of venetoclax, patients will begin their target dose of 800 mg venetoclax daily and continue this dose during the 24- month maintenance treatment phase. On days when venetoclax and rituximab will both be administered, patients will take venetoclax prior to administration of rituximab.

Sponsors

Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER
AbbVie
CollaboratorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

This is a single-arm, phase II study.

Eligibility

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

Inclusion criteria

* Age greater than or equal to 18 years * Histologically confirmed Marginal Zone Lymphoma * Patients must have measurable disease as defined by at least one lymph node ≥1.5 cm or spleen \>13 cm. °Patients with intestinal MALT lymphoma must have disease that is detectable by EGD or colonoscopy with biopsy * Patients with gastric MALT lymphoma must be h. pylori negative °Patients who are h. pylori positive are allowed if they have failed a trial of h.pylori eradication * Patients with gastric MALT lymphoma who are h. pylori negative or who have relapsed/refractory disease after h. pylori eradication must be ineligible for, have refused or failed gastric radiation therapy * ECOG performance status ≤ 1 * Life expectancy of greater than 2 years * Patients must have normal organ function as defined below: * Platelet count ≥ 50,000 cells/mm\^3 * Hemoglobin ≥ 8.0 g/dL * Absolute neutrophil count ≥ 1000 cells/mcL. If there is documented bone marrow involvement, ANC must be \>/= 500 cells/mcL * Total bilirubin \< 1.5 x upper normal institutional limits. In patients with Gilbert's disease or documented liver involvement, total bilirubin up to 3x ULN will be allowed * AST(SGOT)/ALT(SGPT) \<3 x institutional upper limit of normal unless elevation is caused by liver involvement with MZL * AST(SGOT)/ALT(SGPT) \<3 x institutional upper limit of normal unless elevation is caused by liver involvement with MZL °OR Creatinine clearance \>60 mL/min for patients with creatinine levels above institutional normal (by Cockcroft-Gault estimate or 12-24h creatinine clearance measurements). * Ability to understand and the willingness to sign a written informed consent document. * Able to swallow pills * HIV-positive patients on combination antiretroviral therapy are eligible if their HIV is under adequate control with an antiretroviral regimen that has been stable for \> 4 weeks, as long as the CD4 count is \> 300. Appropriate studies will be undertaken in patients receiving combination antiretroviral therapy when indicated. * Patients with Hepatitis B surface antibody serum positivity due to prior immunization, as well as those with Hepatitis B core antibody positivity with negative PCR on antiviral therapy will be eligible.

Exclusion criteria

* Patients who have had prior systemic therapy, including rituximab * Patients who have had prior radiation therapy, with the following exception: °Palliative radiotherapy RT is allowed but must be completed at least 1 week prior to treatment on this study, and prior baseline imaging studies or biopsies. Patients must meet criteria for measurable/assessable disease as outlined above after completion of RT * Prior treatment with ibrutinib or other BTK inhibitor * Patients with h. pylori-associated gastric MALT or stage I/II MZL will be excluded unless they are deemed to be unfit for radiation therapy with curative intent. * Patients with uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements °Patients with Hep B core ab positivity are allowed provided Hep B PCR is undetectable * Lactating or pregnant women * Participants unwilling to adhere to institutional guidelines for highly effective contraception for 12 months after the last dose of rituximab * Patients who received moderate or strong CYP3A inhibitors (such as fluconazole, ketoconazole, and clarithromycin) within 7 days prior to the first dose of venetoclax. * Patients who received moderate or strong CYP3A inducers (such as rifampin, carbamazepine, phenytoin, St. John's Wort) within 7 days prior to the first dose of venetoclax.

Design outcomes

Primary

MeasureTime frameDescription
complete response rate (CRR)2 yearsWill be evaluated in this study using the RECIL criteria.

Secondary

MeasureTime frameDescription
overall response rates (ORR)2 yearsOverall response rate (ORR) will be measured as the number of patients that achieve a PR or CR per RECIL criteria.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORAndrew Zelenetz, MD, PhD

Memorial Sloan Kettering Cancer Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 7, 2026