About this trial
This phase I trial studies the safety and side effects of glofitamab plus a chemoimmunotherapy regimen called R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone) in treating patients newly-diagnosed with HIV-associated large B-cell lymphoma. Glofitamab is a bispecific monoclonal antibody, which can bind to two different antigens that are expressed by cancer cells (CD3 and CD20) at the same time. This may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Rituximab is a monoclonal antibody. It binds to a protein called CD20, which is found on B cells (a type of white blood cell) and some types of cancer cells. This may help the immune system kill cancer cells. Cyclophosphamide is in a class of medications called alkylating agents. It works by damaging the cell's deoxyribonucleic acid (DNA) and may kill cancer cells. It may also lower the body's immune response. Doxorubicin is in a class of medications called anthracyclines. Doxorubicin damages the cell's DNA and may kill cancer cells. It also blocks a certain enzyme needed for cell division and DNA repair. Vincristine is in a class of medications called vinca alkaloids. It works by stopping cancer cells from growing and dividing and may kill them. Prednisone is in a class of medications called corticosteroids. It is used to reduce inflammation and lower the body's immune response to help lessen the side effects of chemotherapy drugs. Giving glofitamab in combination with the R-CHOP regimen may be a safe treatment for patients with newly-diagnosed with HIV-associated large B-cell lymphoma.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Participant is able to understand and willing to sign a written informed consent document
Participants must have histologically (via at least a core or ideally, incisional or excisional biopsy) documented CD20 positive newly diagnosed HIV-associated LBCL as per World Health Organization (WHO) 5th edition, diffuse large B-cell lymphoma (DLBCL), not otherwise specified (NOS); high grade B-cell lymphoma-NOS or DLBCL/high grade B-cell lymphoma with MYC and BCL2 rearrangement. Plasmablastic lymphoma and primary effusion lymphoma may be included only if CD20-positive
Measurable lymph nodes with longest diameter > 1.5 cm, or
Measurable extranodal lesions with longest diameter > 1.0 cm
Disqualifiers
Participants who are receiving any other investigational agents
Participants with active parenchymal central nervous system (CNS) lymphomatous involvement are excluded; however, asymptomatic leptomeningeal disease is allowed as long as participants have ongoing CNS directed therapy, except during the initial safety-run in phase, during which participants with leptomeningeal disease will also be excluded
History of allergic reactions attributed to compounds of similar chemical or biologic composition to agents used in study
Uncontrolled intercurrent illness including, but not limited to: symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, significant pulmonary disease (including, but not limited to clinically significant obstructive pulmonary disease or history of bronchospasm), clinically significant liver disease (including viral or other hepatitis or cirrhosis) or psychiatric illness/social situations that, in the opinion of the investigator, would limit compliance with study requirements or make participation in this protocol unreasonably hazardous
Trial design
Single group
Treatments tested in this trial
Biopsy Procedure
Procedure/SurgeryUndergo tumor tissue biopsy
Biospecimen Collection
Procedure/SurgeryUndergo blood sample collection
Bone Marrow Aspiration
Procedure/SurgeryUndergo bone marrow biopsy or aspiration
Bone Marrow Biopsy
Procedure/SurgeryUndergo bone marrow biopsy or aspiration
Computed Tomography
Procedure/SurgeryUndergo PET/CT
Cyclophosphamide
DrugGiven IV
Doxorubicin Hydrochloride
DrugGiven IV
Echocardiography Test
Procedure/SurgeryUndergo ECHO
Glofitamab
Biological/VaccineGiven IV
Positron Emission Tomography
Procedure/SurgeryUndergo PET/CT
Prednisone
DrugGiven PO
Questionnaire Administration
Other interventionAncillary studies
Rituximab
Biological/VaccineGiven IV
Vincristine Sulfate
DrugGiven IV
Treatment groups
Trial outcomes
Primary outcomes
Ability to deliver at least 4 full cycles of glofitamab-rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (Glofit-RCHOP) (Feasibility)
Feasibility status is defined by the ability to deliver at least 4 cycles of Glofit-RCHOP (i.e. study cycles 1-4). The proportion of the participants who completed at least 4 cycles of Glofit-RCHOP treatment (i.e. cycles 1-4) will be estimated. Will report 95% confidence interval of the above proportion. For the regimen Glofit-RCHOP to be declared feasible, at least 12 out of 15 evaluable participants must complete at least 4 full cycles of Glofit-RCHOP.
Secondary outcomes
Incidence and severity of adverse events (AEs) and serious AEs
Will be assessed by National Cancer Institute Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. Cytokine release syndrome (CRS), immune effector cell-associated neurotoxicity syndrome (ICANS), and immune effector cell-associated hemophagocytic lymphohistiocytosis-like syndrome will be graded using the American Society for Transplantation and Cellular Therapy Cytokine Release Syndrome criteria. All reported toxicities, regardless of attribution, by toxicity type and maximum grade will be summarized, and sorted by number of participants experiencing the toxicity. Safety data will be based mainly on the frequency and attribution of AEs, the frequency of discontinuation of treatment due to toxicity during study treatment, and the proportion of participants experiencing grade 3 or higher AEs related to the treatment components. AEs will be summarized by presenting the number and percentage of participants having any AE.
Complete response rates (CRR)
Defined as the proportion of participants who achieve complete response (CR) among evaluable participants until end of treatment. CRR will be estimated using proportion and corresponding 95% confidence intervals using the Clopper-Pearson method.
Overall response rate (ORR)
Defined as the proportion of participants who achieve CR or partial response among evaluable participants. ORR will be estimated using proportion and corresponding 95% confidence intervals using the Clopper-Pearson method.
Progression-free survival (PFS)
Point estimates (e.g. median and 12 months PFS) with 95% confidence intervals will be calculated using the Kaplan-Meier product limit method to summarize the results. Differences in PFS by groups will be tested using the log-rank test. The association between baseline covariates and PFS will be assessed using a Cox proportional hazards regression model.
Other outcomes
Change in circulating tumor deoxyribonucleic acid
Will be reported using descriptive statistics such as mean, standard deviation, median, interquartile range (IQR), and range for continuous variables and counts and percentages for categorical variables. Group comparison will be done using a Student's t-test and/or Mann-Whitney U test for two groups and Analysis of Variance (ANOVA) and/or Kruskal-Wallis test for comparing more than two groups. Biomarkers measured multiple times will be analyzed using the change from the baseline (CFB). Linear regression model, logistic regression model, Cox proportional hazard regression model, Pearson's correlation coefficients, and Spearman's correlation coefficients will be used to examine the association between exploratory endpoints and other endpoints.
Genetic subtypes of HIV-associated large B-cell lymphoma
Will be reported using descriptive statistics such as mean, standard deviation, median, IQR, and range for continuous variables and counts and percentages for categorical variables. Group comparison will be done using a Student's t-test and/or Mann-Whitney U test for two groups and ANOVA and/or Kruskal-Wallis test for comparing more than two groups. Biomarkers measured multiple times will be analyzed using the CFB. Linear regression model, logistic regression model, Cox proportional hazard regression model, Pearson's correlation coefficients, and Spearman's correlation coefficients will be used to examine the association between exploratory endpoints and other endpoints.
Change in CD4 and CD8
Will be reported using descriptive statistics such as mean, standard deviation, median, IQR, and range for continuous variables and counts and percentages for categorical variables. Group comparison will be done using a Student's t-test and/or Mann-Whitney U test for two groups and ANOVA and/or Kruskal-Wallis test for comparing more than two groups. Biomarkers measured multiple times will be analyzed using the CFB. Linear regression model, logistic regression model, Cox proportional hazard regression model, Pearson's correlation coefficients, and Spearman's correlation coefficients will be used to examine the association between exploratory endpoints and other endpoints.
T-cell subsets, serum levels of cytokines, and inflammation-associated/microbial-translocation molecular profiles
Will be reported using descriptive statistics such as mean, standard deviation, median, IQR, and range for continuous variables and counts and percentages for categorical variables. Group comparison will be done using a Student's t-test and/or Mann-Whitney U test for two groups and ANOVA and/or Kruskal-Wallis test for comparing more than two groups. Biomarkers measured multiple times will be analyzed using the CFB. Linear regression model, logistic regression model, Cox proportional hazard regression model, Pearson's correlation coefficients, and Spearman's correlation coefficients will be used to examine the association between exploratory endpoints and other endpoints.
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