About this trial
This Phase II trial evaluates the optimization of the cytokine release syndrome (CRS) profile for glofitamab in combination with gemcitabine and oxaliplatin (Glofit-GemOx) followed by glofitamab monotherapy treatment regimen (Cohort A), and for glofitamab monotherapy (Cohort B) in participants with relapsed or refractory aggressive B-cell Non-Hodgkin's lymphoma. The study utilizes an optimized steroid premedication regimen and monitoring schedule specifically designed to enable the administration of the treatment regimen in an outpatient setting.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Life expectancy >= 12 weeks.
For participants in the Glofit-GemOx combination therapy cohort (Cohort A) and the glofitamab monotherapy cohort (Cohort B), participant with histologically confirmed diffuse large B-cell lymphoma, (de novo or transformed from a follicular lymphoma (FL); participants with transformed FL must be relapsed or refractory (R/R) to standard therapies of transformed FL) with one of the following diagnoses according to World Health Organization, fifth edition (Alaggio et al. 2022). A fresh biopsy at study entry is not mandated. The histology can be confirmed based on fresh biopsy, or pathology report from a previous biopsy or an assessment of archival tumor tissue.
Diffuse Large B-Cell Lymphoma (DLBCL) not otherwise specified (NOS).
High-Grade B-Cell Lymphoma (HGBL), NOS.
Disqualifiers
Prior enrollment in Studies GO41943 (NCT04313608), GO41944 (STARGLO; NCT04408638), or Study GO44900 (NCT06624085).
Participant has failed only one prior line of therapy and is a candidate for stem cell transplantation.
Any history of Waldenstrom's macroglobulinemia.
Primary mediastinal B-cell lymphoma.
Trial design
Single group
Treatments tested in this trial
Obinutuzumab
DrugParticipants will receive intravenous (IV) obinutuzumab 7 days prior to the first dose of glofitamab.
Glofitamab
DrugParticipants will receive IV glofitamab, both in combination with gemcitabine and oxaliplatin and as monotherapy, for up to 12 cycles (cycle length = 21 days).
Gemcitabine
DrugParticipants will receive IV gemcitabine in combination with glofitamab and oxaliplatin for up to 8 cycles (cycles length = 21 days).
Oxaliplatin
DrugParticipants will receive IV oxaliplatin in combination with glofitamab and gemcitabine for up to 8 cycles (cycle length = 21 days).
Treatment groups
Trial outcomes
Primary outcomes
Incidence of Cytokine Release Syndrome (CRS)
Secondary outcomes
Incidence of Serious Cytokine Release Syndrome (CRS) Events
CRS Frequency Relative to the Start of Glofitamab Infusions
Incidence and Severity of Adverse Events (AEs)
Complete Response (CR) Rate as Determined by Independent Review Facility (IRF) and the Investigator
CR rate is defined as the proportion of participants whose best overall response is a CR based on PET/CT according to the 2014 Lugano Response Criteria during the study, as determined by the Independent Review Facility and the investigator.
Sponsors and contacts
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