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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/show/NCT04313608




Registration number
NCT04313608
Ethics application status
Date submitted
17/03/2020
Date registered
18/03/2020
Date last updated
12/11/2020

Titles & IDs
Public title
A Study Evaluating the Safety and Efficacy of Glofitamab or Mosunetuzumab in Combination With Gemcitabine Plus Oxaliplatin in Participants With Relapsed or Refractory Diffuse Large B-Cell Lymphoma and High-Grade Large B-Cell Lymphoma
Scientific title
A Phase Ib, Open-Label, Multicenter Study Evaluating the Safety and Efficacy of Glofitamab or Mosunetuzumab in Combination With Gemcitabine Plus Oxaliplatin in Patients With Relapsed or Refractory Diffuse Large B-Cell Lymphoma and High-Grade Large B-Cell Lymphoma
Secondary ID [1] 0 0
GO41943
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
B-cell Lymphoma 0 0
Condition category
Condition code
Cancer 0 0 0 0
Lymphoma (non Hodgkin's lymphoma) - High grade lymphoma
Cancer 0 0 0 0
Lymphoma (non Hodgkin's lymphoma) - Low grade lymphoma

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - Glofitamab
Treatment: Drugs - Gemcitabine
Treatment: Drugs - Oxaliplatin
Treatment: Drugs - Mosunetuzumab
Treatment: Drugs - Obinutuzumab
Treatment: Drugs - Tocilizumab

Experimental: Arm A: Glofit-GemOx - Participants will receive up to 8 cycles of Glofit-GemOx (glofitamab in combination with gemcitabine and oxaliplatin) administered in 21-day cycles, followed by up to 4 cycles of glofitamab monotherapy. A single dose of obinutuzumab will be administered 7 days prior to the first dose of glofitamab.

Experimental: Arm B: Mosun-GemOx - Participants will receive up to 8 cycles of Mosun-GemOx (mosunetuzumab in combination with gemcitabine and oxaliplatin) administered in 21-day cycles.


Treatment: Drugs: Glofitamab
Participants will receive intravenous (IV) glofitamab in combination with gemcitabine and oxaliplatin for up to 8 cycles, followed by up to 4 cycles of glofitamab monotherapy.

Treatment: Drugs: Gemcitabine
Participants will receive IV gemcitabine prior to oxaliplatin administration for up to 8 cycles.

Treatment: Drugs: Oxaliplatin
Participants will receive IV oxaliplatin after gemcitabine administration for up to 8 cycles.

Treatment: Drugs: Mosunetuzumab
Participants will receive IV mosunetuzumab in combination with gemcitabine and oxaliplatin for up to 8 cycles.

Treatment: Drugs: Obinutuzumab
Participants will receive a single dose of IV obinutuzumab 7 days prior to the first administration of glofitamab.

Treatment: Drugs: Tocilizumab
Participants will receive IV tocilizumab as needed to treat cytokine release syndrome (CRS).

Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Percentage of Participants with Adverse Events (AEs)
Timepoint [1] 0 0
Up to 17 months
Secondary outcome [1] 0 0
Tolerability of Study Treatment as Measured by Dose Interruptions, Dose Reductions, Dose Intensity, and Treatment Discontinuation due to AEs
Timepoint [1] 0 0
Up to 17 months
Secondary outcome [2] 0 0
Complete Response (CR) Based on PET/CT as Determined by the Investigator According to the 2014 Lugano Response Criteria
Timepoint [2] 0 0
Up to 17 months
Secondary outcome [3] 0 0
Objective Response Rate (ORR), Defined as the Proportion of Participants with a Best Overall Response of Partial Response (PR) or CR, as Determined by the Investigator According to the 2014 Lugano Response Criteria
Timepoint [3] 0 0
Up to 17 months
Secondary outcome [4] 0 0
Minimum Serum Concentration (Cmin) of the CD20-CD3 Bispecific Antibody
Timepoint [4] 0 0
At pre-defined intervals from baseline up to 17 months
Secondary outcome [5] 0 0
Maximum Serum Concentration (Cmax) of the CD20-CD3 Bispecific Antibody
Timepoint [5] 0 0
At pre-defined intervals from baseline up to 17 months
Secondary outcome [6] 0 0
Area Under the Concentration-Time Curve (AUC) of the CD20-CD3 Bispecific Antibody
Timepoint [6] 0 0
At pre-defined intervals from baseline up to 17 months
Secondary outcome [7] 0 0
Proportion of Participants with Anti-Drug Antibodies (ADAs) to Glofitamab
Timepoint [7] 0 0
Baseline up to 17 months
Secondary outcome [8] 0 0
Proportion of Participants with ADAs to Mosunetuzumab
Timepoint [8] 0 0
Baseline up to 17 months

Eligibility
Key inclusion criteria
Inclusion Criteria

- Eastern Cooperative Oncology Group (ECOG) Performance Status of 0, 1, or 2

- Histologically confirmed B-cell lymphoma, including one of the following diagnoses per
the 2016 World Health Organization (WHO) classification of lymphoid neoplasms: DLBCL,
not otherwise specified (NOS); HGBCL with MYC and BCL2 and/or BCL6 rearrangements;
HGBCL, NOS

- R/R disease, defined as follows: Relapse: disease that has recurred following a
response that lasted >/=6 months after completion of last line of therapy; Refractory:
disease that progressed during therapy or progressed within 6 months (<6 months) of
prior therapy

- At least one line of prior systemic therapy

- At least one bi-dimensionally measurable nodal lesion or one bi-dimensionally
measurable extranodal lesion, as measured on positron emission tomography-computed
tomography (PET/CT) scan

- Adequate hematologic function

- For women of childbearing potential: agreement to remain abstinent (refrain from
heterosexual intercourse) or use contraceptive methods, and agreement to refrain from
donating eggs, as follows: Women must remain abstinent or use contraceptive methods
with a failure rate of <1% per year during the treatment period and for at least 18
months after the final dose of obinutuzumab, 6 months after the final dose of
gemcitabine, 9 months after the final dose of oxaliplatin, 3 months after the final
dose of mosunetuzumab, 3 months after the final dose of tocilizumab, and 2 months
after the final dose of glofitamab. Women must refrain from donating eggs during this
same period

- For men: agreement to remain abstinent (refrain from heterosexual intercourse) or use
contraceptive methods, and agreement to refrain from donating sperm, as follows: With
a female partner of childbearing potential or pregnant female partners, men must
remain abstinent or use a condom plus an additional contraceptive method that together
result in a failure rate of <1% per year during the treatment period and for at least
2 months after the final dose of glofitamab, 2 months after the final dose of
mosunetuzumab, 2 months after the final dose of tocilizumab (if applicable), 3 months
after the final dose of obinutuzumab, and 6 months after the final dose of oxaliplatin
or gemcitabine to avoid exposing the embryo. Men must refrain from donating sperm
during this same period.
Minimum age
18 Years
Maximum age
No limit
Gender
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
Exclusion Criteria

- Participant has failed only one prior line of therapy and is a candidate for stem cell
transplantation

- History of severe allergic or anaphylactic reactions to humanized or murine monoclonal
antibodies (or recombinant antibody-related fusion proteins) or known sensitivity or
allergy to murine products

- Contraindication to obinutuzumab, gemcitabine, oxaliplatin, or tocilizumab

- Prior treatment with a bispecific antibody targeting both CD20 and CD3, including
glofitamab and mosunetuzumab

- Grade >1 peripheral neuropathy

- Treatment with radiotherapy, chemotherapy, immunotherapy, immunosuppressive therapy,
or any investigational agent for the purposes of treating cancer within 2 weeks prior
to first study treatment

- Treatment with monoclonal antibodies for the purposes of treating cancer within 4
weeks prior to the first study treatment

- Primary or secondary central nervous system (CNS) lymphoma at the time of recruitment
or history of CNS lymphoma

- Current or history of CNS disease, such as stroke, epilepsy, CNS vasculitis, or
neurodegenerative disease

- History of other malignancy that could affect compliance with the protocol or
interpretation of results

- Evidence of significant, uncontrolled concomitant diseases that could affect
compliance with the protocol or interpretation of results, including significant
cardiovascular disease (such as New York Heart Association Class III or IV cardiac
disease, myocardial infarction within the last 6 months, unstable arrhythmias, or
unstable angina) or significant pulmonary disease (including obstructive pulmonary
disease and history of bronchospasm)

- Known active bacterial, viral, fungal, mycobacterial, parasitic, or other infection
(excluding fungal infections of nail beds) at study enrollment or any major episode of
infection (as evaluated by the investigator) within 4 weeks prior to first study
treatment

- Suspected or latent tuberculosis

- Positive test results for chronic hepatitis B virus (HBV) infection

- Positive test results for hepatitis C virus (HCV) antibody

- Known HIV-seropositive status

- Known or suspected chronic active Epstein-Barr virus infection

- Known or suspected history of hemophagocytic lymphohistiocytosis (HLH)

- History of progressive multifocal leukoencephalopathy

- Adverse events from prior anti-cancer therapy that have not resolved to Grade 1 or
better (with the exception of alopecia and anorexia)

- Administration of a live, attenuated vaccine within 4 weeks prior to the first study
treatment administration or anticipation that such a live, attenuated vaccine will be
required during the study

- Prior solid organ transplantation

- Prior allogenic stem cell transplant

- Active autoimmune disease requiring treatment

- Prior treatment with systemic immunosuppressive medications (including, but not
limited to, cyclophosphamide, azathioprine, methotrexate, thalidomide, and anti-tumor
necrosis factor agents) within 4 weeks prior to the first dose of study treatment

- Corticosteroid therapy within 2 weeks prior to first dose of study treatment, with
exceptions defined by the study protocol

- Recent major surgery (within 4 weeks before the first study treatment) other than for
diagnosis

- Clinically significant history of liver disease, including cirrhosis

Study design
Purpose of the study
Treatment
Allocation to intervention
Non-randomised trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Other
Other design features
Phase
Phase 1
Type of endpoint(s)
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
Sample size
Target
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
NSW,VIC
Recruitment hospital [1] 0 0
Prince of Wales Hospital; Haematology - Randwick
Recruitment hospital [2] 0 0
Monash Health Monash Medical Centre - Clayton
Recruitment hospital [3] 0 0
St Vincent's Hospital Melbourne - Fitzroy
Recruitment postcode(s) [1] 0 0
2031 - Randwick
Recruitment postcode(s) [2] 0 0
3168 - Clayton
Recruitment postcode(s) [3] 0 0
3065 - Fitzroy

Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
Name
Hoffmann-La Roche
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
This study is designed to evaluate the safety and efficacy of glofitamab or mosunetuzumab in
combination with gemcitabine and oxaliplatin (Glofit-GemOx or Mosun-GemOx) in participants
with relapsed or refractory (R/R) diffuse large B-cell lymphoma (DLBCL) or high-grade B-cell
lymphoma (HGBCL).
Trial website
https://clinicaltrials.gov/show/NCT04313608
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Clinical Trials
Address 0 0
Hoffmann-La Roche
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Reference Study ID Number: GO41943 www.roche.com/about_roche/roche_worldwide.htm
Address 0 0
Country 0 0
Phone 0 0
888-662-6728
Fax 0 0
Email 0 0
global-roche-genentech-trials@gene.com
Contact person for scientific queries

Summary results
For IPD and results data, please see https://clinicaltrials.gov/show/NCT04313608