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Polatuzumab Vedotin Plus Rituximab, Ifosfamide, Carboplatin and Etoposide (Pola-R-ICE) Versus R-ICE Alone in Second Line Treatment of Diffuse Large B-cell Lymphoma (DLBCL)

Recruiting
18 years of age
Both
Phase 3

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Overview

An open-label, prospective Phase III clinical study to compare polatuzumab vedotin plus rituximab, ifosfamide, carboplatin and etoposide (Pola-R-ICE) with rituximab, ifosfamide, carboplatin and etoposide (R-ICE) alone as salvage therapy in patients with primary refractory or relapsed diffuse large B-cell lymphoma (DLBCL)

Description

The study is designed as an international, multicenter, open-label, two-arm, prospective phase III study to compare the treatment of polatuzumab vedotin plus rituximab, ifosfamide, carboplatin and etoposide (Pola-R-ICE) with the combination of rituximab, ifosfamide, carboplatin and etoposide (R-ICE) alone as salvage therapy in patients with primary refractory or relapsed DLBCL.

The study will involve study sites in Germany, UK, Spain, and Austria. It is planned to include 324 patients who will be randomized 1:1 to receive either treatment in the experimental arm (Pola-R-ICE) or in the standard arm (R-ICE) to end up with 308 evaluable subjects for the randomized part of the trial. Further 10 patients will be treated with Pola-R-ICE during the safety run-in phase.

The study consists of a screening/inclusion visit, three chemotherapy cycles, an end-of - treatment visit (EoT), and follow-up visits. For each subject, the total duration of the study will be approximately 3 months of treatment plus at least 21 months follow-up. The study will end when the last included patient will have passed the last follow-up visit (LPLFU). For the study as a whole, the primary outcome will be evaluated when the last included patient will have completed the 21 months follow-up period or has left the study prematurely.

For the study as a whole, the primary outcome will be evaluated when the last included patient will have completed the 21 months follow-up period or has left the study prematurely.

Eligibility

Inclusion Criteria:

  1. The informed consent form must be signed before any study specific tests or procedures are done
  2. Adult male and female patients ≥18 years (≥16 years in the UK) at the time of inclusion in the study ( In the UK an "adult" means a person who has attained the age of 16 years, according to The Medicines for Human Use (Clinical Trials) Regulations 2004, Part 1 Point 2.)
  3. Ability to understand and follow study-related instructions
  4. Risk group: All patients with one of the following histologically defined entities: Histological diagnosis of primary refractory or relapsed aggressive B-cell non-Hodgkin lymphoma (B-NHL), confirmed by a biopsy of involved nodal or extranodal site. Patients with any of the following histologies can be included:
    • DLBCL not otherwise specified (NOS)
    • T-cell/histiocyte-rich large B-cell lymphoma
    • Primary cutaneous DLBCL, leg type
    • Epstein-Barr virus (EBV)-positive DLBCL, NOS
    • DLBCL associated with chronic inflammation
    • Primary mediastinal (thymic) large B-cell lymphoma
    • High-grade B-cell lymphoma, with MYC and BCL2 and/or BCL6 rearrangements
    • High-grade B-cell lymphoma, NOS
             Refractory disease is defined as no complete remission to first line therapy; subjects
             who are intolerant to first line therapy are excluded. Three groups of patients are
             eligible:
               -  Progressive disease (PD) as best response to first line therapy (biopsy not
                  mandatory if diagnostic sample available).
               -  Stable disease (SD) as best response after at least 4 cycles of first line
                  therapy (e.g., 4 cycles of R-CHOP) (biopsy not mandatory if diagnostic sample
                  available).
               -  Partial response (PR) as best response after at least 6 cycles, and biopsy-proven
                  residual disease or disease Progression after the partial response.
             Relapsed disease is defined as complete remission to first line therapy followed by
             biopsy proven disease relapse.
          5. Performance Status ECOG 0-2 at time of randomization or ECOG 3 at screening if this is
             DLBCL-related and has improved to ECOG 2 or less with a 7-day steroid treatment during
             the screening Phase (e.g. 1 mg/kg prednisone).
          6. Information on all 5 International Prognostic Index (IPI) factors
          7. Staging (PET-CT based-staging according to Lugano criteria 2014). Patients must have
             PET-positive lesions.
          8. Subjects must have received adequate first line therapy including at a minimum: i)
             anti-CD20 monoclonal antibody unless Investigator determines that tumor is CD20
             negative, and ii) an anthracycline containing chemotherapy Regimen
          9. Intent to proceed to high-dose therapy (HDT) and stem cell transplantation (SCT) if
             response to second line therapy
         10. Adequate hematological function, as defined by: hemoglobin ≥ 8 g/dL, absolute
             neutrophil count (ANC) ≥ 1.0 x 109/L OR ≥ 0.5 x 109/L if neutropenia is attributable
             to underlying disease and before the administration of steroids, and platelet count ≥
             75 x 109/L OR ≥ 50 x 109/L if thrombocytopenia is attributable to Underlying disease
         11. Women of childbearing potential must have a negative pregnancy test result within 7
             days prior to the first study drug Administration
         12. For women of childbearing potential: agreement to remain abstinent (refrain from
             heterosexual intercourse) or use contraceptive measures, and agreement to refrain from
             donating eggs
         13. For men: agreement to remain abstinent (refrain from heterosexual intercourse) or use
             contraceptive measures, and agreement to refrain from donating sperm
        Exclusion Criteria:
        (1) Serious accompanying disorder leading to impaired organ function causing significant
        clinical problems and reduced life expectancy of less than 3 months. In particular,
        patients with the following organ dysfunction caused by accompanying disorders are to be
        excluded:
          -  Heart failure with left ventricular ejection fraction (LVEF) < 45%
          -  Impaired pulmonary function with vital capacity (VC) or forced expiratory volume
             (FEV1) < 50% of normal (only in case of history of significant pulmonary disease)
          -  Impaired renal function with glomerular filtration rate (GFR) < 50 mL/min (calculated)
          -  Impaired liver function with alanine aminotransferase (ALAT), aspartate
             aminotransferase (ASAT) or Bilirubin > 1.5 x upper limit of normal (ULN). If elevation
             is caused by the disease, threshold of 2.5 x ULN is accepted
          -  Peripheral neuropathy > Grade II (2) Human immunodeficiency virus (HIV)-positivity
             with detectable viral load and/or a CD4+ count below 0.3/nL
             (3) Hepatitis B and C as defined by seropositivity (HBsAG and anti HBe/ anti HBc;
             anti-Hc); in case of false positive serology (transfused antibodies) negative
             PCR-results will allow patient inclusion. Patients with occult or prior HBV infection
             (defined as negative HBsAg and positive hepatitis B core antibody [HBcAb]) may be
             included if HBV DNA is undetectable, provided that they are willing to undergo DNA
             testing on Day 1 of every cycle and monthly for at least 12 months after the last
             cycle of study Treatment
             (4) Known active bacterial, viral, fungal, mycobacterial, parasitic, or other
             infection (excluding fungal infections of nail beds) at study inclusion or any
             unresolved major episode of infection (as evaluated by the investigator) within 1 week
             prior to Cycle 1 Day 1
             (5) Patients with suspected or latent tuberculosis. Latent tuberculosis needs to be
             confirmed by positive interferon-gamma release Assay
             (6) Primary or secondary central nervous system (CNS) lymphoma at the time of
             recruitment
             (7) Richter's transformation or prior chronic lymphocytic leukemia (CLL)
             (8) Vaccination with a live vaccine within 4 weeks prior to Treatment
             (9) Recent major surgery (within 6 weeks before the start of Cycle 1 Day 1) other than
             for diagnosis
             (10) Treatment with radiotherapy, chemotherapy, immunotherapy, immunosuppressive
             therapy, or any investigational agent for the purposes of treating cancer within 2
             weeks prior to Cycle 1 Day 1
             (11) Received more than one line of therapy for DLBCL
             (12) Received polatuzumab vedotin as part of the first line therapy
             (13) Any other diseases, metabolic dysfunction, physical examination finding, or
             clinical laboratory finding giving reasonable suspicion of a disease or condition that
             contraindicates the use of an investigational drug or that may affect the
             interpretation of the results or render the patient at high risk from treatment
             complications
             (14) Ongoing treatment or study procedures within any other Investigational Medicinal
             Product (IMP) clinical trial with the exception of follow-up. In case of a preceding
             clinical trial, last application of the respective IMP(s) must have been done more
             than five elimination half-lives before start of study medication in this trial.
             (15) History of severe allergic or anaphylactic reactions to human, humanized,
             chimeric, or murine monoclonal antibodies
             (16) History of hypersensitivity to any of the study drugs or their ingredients or to
             drugs with similar structure
             (17) Contraindications according to the Investigator´s Brochure (IB) of polatuzumab
             vedotin or the local Summary of Product Characteristics (SmPCs) of the used rituximab,
             ifosfamide, carboplatin or etoposide products
             (18) Criteria which in the opinion of the investigator preclude participation for
             scientific reasons, for reasons of compliance, or for reasons of the subject's Safety
             (19) Pregnancy or breastfeeding, or intending to become pregnant during the study or
             within 12 months after the last dose of study drug
             (20) Close affiliation with the investigator (e.g. a close relative) or persons
             working at the study site
             (21) Subject is an employee of the sponsor or involved Contract Research Organization
        At study inclusion, any organ impairment due to lymphoma infiltration is NOT regarded as an
        exclusion criterion.

Study details

Relapsed Diffuse Large B-cell Lymphoma, Refractory Diffuse Large B-Cell Lymphoma

NCT04833114

GWT-TUD GmbH

27 January 2024

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