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A Randomized, Double-blind, Placebo-Controlled, Active Comparator, Multicenter, Phase 3 Study of Brentuximab Vedotin or Placebo in Combination With Lenalidomide and Rituximab in Subjects with Relapsed or Refractory Diffuse Large B-cell Lymphoma (DLBCL)

A Randomized, Double-blind, Placebo-Controlled, Active Comparator, Multicenter, Phase 3 Study of Brentuximab Vedotin or Placebo in Combination With Lenalidomide and Rituximab in Subjects with Relapsed or Refractory Diffuse Large B-cell Lymphoma (DLBCL) - SGN35-031 - ECHELON-3

Status
Unknown
Phases
Phase 3
Study type
Interventional
Source
NL-OMON
Registry ID
NL-OMON52039
Enrollment
4
Registered
2020-11-05
Start date
Unknown
Completion date
Unknown
Last updated
2024-04-09

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

Conditions

DLBCL Non Hodgkin Lymphoma

Interventions

NVT

Sponsors

Seagen Inc.
Lead Sponsor

Eligibility

Age
18 Years to 64 Years

Inclusion criteria

Inclusion criteria: - Participants with relapsed or refractory diffuse and transformed large B-cell lymphoma (R/R DLBCL). DLBCL and cell of origin (GCB versus non- GCB) will be histologically determined by the most recent local pathology assessment for the purposes of study eligibility and stratification. - Participants must have R/R disease following 2 or more lines of prior systemic therapy. For subjects with transformed DLBCL (subtype k), at least the last systemic therapy used must have been for DLBCL. - Participants must be HSCT or CAR-T ineligible according to the investigator and must meet at least one of the following criteria: o One or more co-morbidities, including cardiac, pulmonary, renal or hepatic dysfunction that in the opinion of the Investigator make the subject medically unfit to received HSCT or CAR-T therapy o Active disease following induction and salvage chemotherapy o Inadequate stem cell mobilization (for HSCT) o Relapse following prior HSCT or CAR-T o Unable to receive CAR-T therapy due to financial, geographic, insurance or manufacturing issues - Participants must have tumor tissue submitted to the central pathology lab for the determination of CD30 expression. - An Eastern Cooperative Oncology Group (ECOG) performance status score of 0 to 2 - Participants must have fluorodeoxyglucose (FDG)-avid disease by positron emission tomography (PET) and bidimensional measurable disease of >1.5 cm by computed tomography (CT), as assessed by the site radiologist within 28 days of Day 1. Other protocol defined inclusion criteria may apply.

Exclusion criteria

Exclusion criteria: - History of another malignancy within 2 years before the first dose of study drug or any evidence of residual disease from a previously diagnosed malignancy. - History of progressive multifocal leukoencephalopathy (PML). - Active cerebral/meningeal disease related to the underlying malignancy. Subjects with a history of cerebral/meningeal disease related to the underlying malignancy are allowed if prior CNS disease has been effectively treated and without progression for at least 3 months. - Any uncontrolled Grade 3 or higher (per NCI CTCAE version 5.0) viral, bacterial, or fungal infection within 2 weeks prior to the first dose of study drug. Routine antimicrobial prophylaxis is permitted - Chemotherapy, radiotherapy, biologics, and/or other antitumor treatment with immunotherapy that is not completed 3 weeks prior to first dose of study drug, unless underlying disease has progressed on treatment - Participants who are breastfeeding - Known hypersensitivity to any study drug or excipient contained in the drug formulation of the study drugs - Any contraindication to associated study treatments. - Known to be positive for hepatitis B by surface antigen expression. - Subjects who are hepatitis B surface antigen (HBsAg) negative but hepatitis B core antibody (HBcAb) positive are eligible, but should start hepatitis B prophylaxis therapy prior to receiving the first dose of rituximab. Known to be positive for hepatitis C (HCV) infection (either confirmed positive by polymerase chain reaction [PCR] or on antiviral therapy for hepatitis C within the last 6 months). Participants who have been treated for hepatitis C infection are permitted if they have documented sustained virologic response of 12 weeks. - Participants with previous allogeneic HSCT if they meet either of the following criteria: 1.

Design outcomes

Primary

MeasureTime frame
Evaluate and compare PFS between the 2 treatment arms in the intent-to-treat (ITT) population Evaluate and compare PFS between the 2 treatment arms in the CD30-positive population

Secondary

MeasureTime frame
Evaluate and compare OS between the 2 treatment arms in the ITT population * Evaluate and compare OS between the 2 treatment arms CD30-positive population * OS in the ITT population * OS in the CD30-positive population * Evaluate and compare objective response rate (ORR) between the 2 treatment arms in the ITT population

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)