MedPath

Comparison Between Rituximab Plus Zanubrutinib Versus Rituximab Monotherapy in Untreated SMZL Patients

Phase 3
Recruiting
Conditions
Splenic Marginal Zone Lymphoma
Interventions
Registration Number
NCT05735834
Lead Sponsor
International Extranodal Lymphoma Study Group (IELSG)
Brief Summary

The goal of this clinical trial is to compare the efficacy and tolerability of the combination of two medicinal products, rituximab, and zanubrutinib, compared to rituximab monotherapy in patients with Splenic Marginal Zone Lymphoma (SMZL), previously untreated and who need systemic treatment.

The main questions it aims to answer are:

* Is the combination rituximab and zanubrutinib a more effective therapy than rituximab monotherapy?

* Is the combination therapy, rituximab and zanubrutinib, well tolerated?

Study participants will be put into one of the two treatment groups (rituximab and zanubrutinib or rituximab alone) for a maximum of two years and will undergo regular visits until three years from treatment start.

Detailed Description

Phase III, interventional, multicenter, open label, randomized study to evaluate whether treatment with zanubrutinib in combination with rituximab will result in an improvement in Progression Free Survival (PFS) compared to treatment with rituximab in patients with previously untreated splenic marginal zone lymphoma (SMZL).

Approximately 120 subjects will be randomized in a 1:1 ratio to receive zanubrutinib and rituximab (Treatment Arm A) or rituximab (Treatment Arm B). The study will include a Screening Phase, a Treatment Phase, and a Follow-Up Phase.

Subjects with investigator-confirmed progressive disease (PD) according to the Lugano 2014 criteria or unacceptable toxicity, or investigator/subject decision must discontinue study treatment.

Patients who complete the treatment and patients who will discontinue treatment for any reason will enter the Follow-up Phase.

The Response Follow-up Phase will occur for subjects who complete the treatment or discontinue for reasons other than disease progression and will include efficacy assessments every 24 weeks until investigator-assessed disease progression.

Subjects with PD during the Response Follow-up Phase will continue to be followed in the Survival Follow-up Phase.

An Independent Data Monitoring Committee (IDMC) will be responsible for independent review of the interim safety analysis on the first 20 enrolled patients in the experimental arm.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
120
Inclusion Criteria
  • Ability to understand and willingness to sign a written informed consent in accordance with ICH/GCP regulations before registration and prior to any trial-specific procedures.
  • Confirmed diagnosis of SMZL, including Matutes immunophenotype score <3. Evaluation of the following features is desirable: absence of CD103 expression by flow cytometry, absence of Cyclin D1, BCL6, and CD10 expression by immunohistochemistry, and absence of the MYD88 L265P mutation. Patients with prominent splenomegaly and involvement of the splenic hilar and/or extra hilar lymph nodes are eligible
  • Previously untreated disease. Patients with prior hepatitis C virus (HCV) infection who underwent HCV eradication and have persistent SMZL after 3 months post-eradication can be included.
  • Treatment needs according to the ESMO guideline criteria
  • Measurable lesions
  • Age ≥ 18 years.
  • European Cooperative Oncology Group (ECOG) performance status of 0, 1, or 2.
  • Absolute neutrophil count (ANC) ≥ 1.0 x 109/L, platelet count ≥ 50 x 109/L, Hb > 7.5 g/dl. Values below such thresholds are allowed if attributable to the underlying lymphoma. Transfusions are allowed if clinically indicated during screening.
  • Adequate hepatic and renal function and coagulation parameters
  • Patient able and willing to swallow trial drugs as whole tablet/capsule
Exclusion Criteria
  • Previous splenectomy.
  • Any systemic therapy for SMZL.
  • Patients with central nervous system (CNS) involvement.
  • Prior malignancy (other than the disease under study) within the past 2 years, except for curatively treated basal or squamous skin cancer, superficial bladder cancer, carcinoma in situ of the cervix or breast, or localized Gleason score ≤ 6 prostate cancer.
  • Clinically significant cardiovascular disease
  • History of cerebrovascular accident or intracranial hemorrhage within 6 months before registration and known bleeding disorders (eg, von Willebrand's disease or hemophilia).
  • History of confirmed progressive multifocal leukoencephalopathy (PML).
  • Concomitant diseases that require anticoagulant therapy with warfarin or phenprocoumon or other vitamin K antagonists and patients treated with dual anti-platelet therapy. Patients being treated with factor Xa inhibitors (eg, rivaroxaban, apixaban, edoxaban), direct thrombin inhibitors (e. dabigatran) low molecular weight heparin (LMWH), or single anti-platelet agents (eg. aspirin, clopidogrel) can be included but must be properly informed about the potential risk of bleeding.
  • Malabsorption syndrome or other condition that precludes the enteral route of administration.
  • Any uncontrolled active systemic infection requiring intravenous antimicrobial treatment.
  • Known human immunodeficiency virus (HIV) infection.
  • Active COronaVIrus Disease 19 (COVID-19) infection or non-compliance with the prevailing hygiene measures regarding the COVID-19 pandemic.
  • Active chronic hepatitis C or hepatitis B virus infection
  • Active, uncontrolled autoimmune phenomenon (autoimmune hemolytic anemia or immune. thrombocytopenia) requiring steroid therapy with > 20 mg daily of prednisone dose or equivalent.
  • Known hypersensitivity to trial drugs or any component of the trial drugs.
  • Concomitant treatment with strong CYP3A inducers or inhibitors
  • Other severe acute or chronic medical or psychiatric condition or laboratory abnormality that in the opinion of the investigator may increase the risk associated with trial participation or investigational product administration or may interfere with the interpretation of trial results and/or would make the patient inappropriate for enrolment into this trial.
  • Pregnancy or breastfeeding.
  • Concurrent participation in another therapeutic clinical trial.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Arm A - Rituximab + ZanubrutinibZanubrutinibZanubrutinib (160 mg BID orally continuous dosing) is administered for 12 cycles of 28 days each. After cycle 12: 1. Patients in Complete Response (CR) will stop treatment and enter the follow-up phase. 2. Patients in partial response (PR) will continue zanubrutinib treatment (160 mg BID orally continuous dosing) for 12 additional cycles of 28 days each for a total of 24 cycles. 3. Patients in stable disease (SD) or progressive disease (PD) will stop treatment and will enter the follow-up phase. Rituximab is infused at the dose of 375 mg/m2 iv on days 1, 8, 15, and 22 of cycle 1 (28 days per cycle), then on day 1 of cycles 3, 6, 9, and 12 (28 days per cycle). After cycle 12: 1. Patients in CR will stop treatment and enter the follow-up phase. 2. Patients in PR will go on with rituximab 375 mg/m2 IV on day 1 of cycles 15, 18, 21, and 24 (28 days per cycle). 3. Patients in SD or PD will discontinue treatment and will enter the follow-up phase.
Arm A - Rituximab + ZanubrutinibRituximabZanubrutinib (160 mg BID orally continuous dosing) is administered for 12 cycles of 28 days each. After cycle 12: 1. Patients in Complete Response (CR) will stop treatment and enter the follow-up phase. 2. Patients in partial response (PR) will continue zanubrutinib treatment (160 mg BID orally continuous dosing) for 12 additional cycles of 28 days each for a total of 24 cycles. 3. Patients in stable disease (SD) or progressive disease (PD) will stop treatment and will enter the follow-up phase. Rituximab is infused at the dose of 375 mg/m2 iv on days 1, 8, 15, and 22 of cycle 1 (28 days per cycle), then on day 1 of cycles 3, 6, 9, and 12 (28 days per cycle). After cycle 12: 1. Patients in CR will stop treatment and enter the follow-up phase. 2. Patients in PR will go on with rituximab 375 mg/m2 IV on day 1 of cycles 15, 18, 21, and 24 (28 days per cycle). 3. Patients in SD or PD will discontinue treatment and will enter the follow-up phase.
Arm B - RituximabRituximabRituximab is infused at the dose of 375 mg/m2 iv on days 1, 8, 15, and 22 of cycle 1 (28 days per cycle), then on day 1 of cycles 3, 6, 9, and 12 (28 days per cycle). After cycle 12: 1. Patients in CR will stop treatment and enter the follow-up phase. 2. Patients in PR will go on with rituximab 375 mg/m2 iv on day 1 of cycles 15, 18, 21, and 24 (28 days per cycle). 3. Patients in SD or PD will discontinue treatment and will enter the follow-up phase
Primary Outcome Measures
NameTimeMethod
Progression Free Survival (PFS) rate at 3 yearsFrom the date of randomization to the date of progression or the date of death from any cause until 3 years after randomization

PFS is defined as the time from the date of randomization until progression (assessed by the investigator per Lugano 2014 criteria) or death from any cause, whichever occurs first

Secondary Outcome Measures
NameTimeMethod
Best responseFrom date of treatment start until 24 months after treatment start

Investigator-assessed best response achieved at any time during the treatment period (24 months) assessed according to the Lugano 2014 criteria

Best response - Matutes criteriaFrom date of treatment start until 24 months after treatment start

Investigator-assessed best response achieved at any time during the treatment period (24 months) assessed according to the Matutes criteria

Complete remission rates - Matutes criteriaAt 12 and 24 months after treatment start

Investigator-assessed complete remission rates achieved at 12 and 24 months of treatment, assessed according to the Matutes criteria

Complete remission rates - Lugano 2014 criteriaAt 12 and 24 months after treatment start

Investigator-assessed complete remission rates achieved at 12 and 24 months of treatment, assessed according to the Lugano 2014 criteria

Time to next anti-lymphoma treatment (TTNT)From the end of treatment to the start of the next anti-lymphoma therapy until 3 years after randomization

Investigator-assessed time to next anti-lymphoma treatment (TTNT) according to the Lugano 2014 criteria. TTNT is defined as time from the end of treatment until the start of the next therapy

Overall Survival (OS)From the time of randomization until death as a result of any cause until 3 years from randomization

OS according to the Lugano 2014 criteria. OS is defined as the time from random assignment until death as a result of any cause

Duration of response (DoR)From the time when criteria for response (ie, CR or PR) are met to the first documentation of relapse or progression until 3 years from randomization

Investigator-assessed DoR according to the Lugano 2014 criteria

Treatment Emergent Adverse Events (AEs)From the time of ICF signature until 28 days after treatment discontinuation or until resolution of all treatment-related AEs, whichever occurs later, or starting of a new anti-neoplastic treatment up to 3 years from randomization

Analysis of type and severity of adverse events (AEs) according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) v5.0

Trial Locations

Locations (54)

Hospital De Salamanca

🇪🇸

Salamanca, Spain

Hospital De Donostia

🇪🇸

San Sebastián, Spain

Hospital Clinico De Valencia

🇪🇸

Valencia, Spain

Hospital Universitario Miguel Servet

🇪🇸

Zaragoza, Spain

Karolinska University Hospital

🇸🇪

Stockholm, Sweden

Medical University of Vienna

🇦🇹

Vienna, Austria

Aarhus University Hospital

🇩🇰

Aarhus, Denmark

Institut Bergonié

🇫🇷

Bordeaux, France

CHU de Grenoble

🇫🇷

Grenoble, France

Hôpital Saint Louis

🇫🇷

Paris, France

Hôpital Lyon-Sud

🇫🇷

Pierre-Bénite, France

CHRU Nancy Brabois

🇫🇷

Vandœuvre-lès-Nancy, France

IRCCS Istituto Tumori Giovanni Paolo II

🇮🇹

Bari, Italy

IRCCS AOU di Bologna

🇮🇹

Bologna, Italy

ASST Spedali Civili di Brescia

🇮🇹

Brescia, Italy

A.O.U. Policlinico G. Rodolico-S. Marco

🇮🇹

Catania, Italy

IRCCS IRST Istituto Romagnolo per lo Studio dei Tumori "Dino Amadori"

🇮🇹

Meldola, Italy

Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico

🇮🇹

Milan, Italy

IRCCS Ospedale San Raffaele

🇮🇹

Milan, Italy

ASST Grande Ospedale Metropolitano Niguarda

🇮🇹

Milan, Italy

Azienda Ospedaliero Universitaria Maggiore della Carità

🇮🇹

Novara, Italy

Azienda Ospedaliera Ospedali Riuniti Villa Sofia Cervello

🇮🇹

Palermo, Italy

IRCCS Policlinico San Matteo

🇮🇹

Pavia, Italy

Ospedale Santa Maria delle Croci

🇮🇹

Ravenna, Italy

USL-IRCCS of Reggio Emilia, Arcispedale Santa Maria Nuova

🇮🇹

Reggio Emilia, Italy

Policlinico Santa Maria alle Scotte

🇮🇹

Siena, Italy

Ospedale di Circolo e Fondazione Macchi - ASST dei Sette Laghi

🇮🇹

Varese, Italy

Oslo University Hospital

🇳🇴

Oslo, Norway

St Olavs Hospital

🇳🇴

Trondheim, Norway

Hospedal Clinic de Barcelona

🇪🇸

Barcelona, Spain

Hospital del Mar

🇪🇸

Barcelona, Spain

Hospital Vall d'Hebron

🇪🇸

Barcelona, Spain

Istitut Català d'Oncologia, Hospital Duran i Reynals

🇪🇸

Barcelona, Spain

Hospital Universitario Cruces

🇪🇸

Bilbao, Spain

Hospital Virgen Arrixaca

🇪🇸

El Palmar, Spain

Clinica Universidad de Navarra

🇪🇸

Pamplona, Spain

Hospital 12 De Octubre

🇪🇸

Madrid, Spain

Hospital Gregorio Marañón

🇪🇸

Madrid, Spain

Hospital Ramon y Cajal

🇪🇸

Madrid, Spain

Oncology Institute of Southern Switzerland

🇨🇭

Bellinzona, Switzerland

INSELSPITAL, Bern University Hospital

🇨🇭

Bern, Switzerland

Birmingham Hearthland Hospital

🇬🇧

Birmingham, United Kingdom

University Hospitals Dorset

🇬🇧

Bournemouth, United Kingdom

University Hospital of Wales

🇬🇧

Cardiff, United Kingdom

Hospital Beatson West of Scotland Cancer Centre

🇬🇧

Glasgow, United Kingdom

Leicester Royal Infirmary

🇬🇧

Leicester, United Kingdom

Clatterbridge Cancer Centre

🇬🇧

Liverpool, United Kingdom

University College London Hospitals

🇬🇧

London, United Kingdom

Guy's Hospital - Guy's and St. Thomas' NHS Foundation Trust

🇬🇧

London, United Kingdom

The Christie

🇬🇧

Manchester, United Kingdom

Churchill Hospital

🇬🇧

Oxford, United Kingdom

Derriford Hospital

🇬🇧

Plymouth, United Kingdom

University Hospitals Southampton

🇬🇧

Southampton, United Kingdom

The Royal Marsden NHS Foundation Trust

🇬🇧

Sutton, United Kingdom

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