Combination Therapy for Non-Hodgkin's Lymphoma

(MAPtivate-6 Trial)

Recruiting at 27 trial locations

Overseen By Pfizer CT.gov Call Center

Age: 18+

Sex: Any

Trial Phase: Phase 1 & 2

Sponsor: Pfizer

Must not be taking: Anti-CD47, Glofitamab

Disqualifiers: High grade B-cell lymphoma, others

No Placebo Group All trial participants will receive the active study treatment (no placebo)

Compensation: Varies

Number of Visits: 4

Duration: 9 months

70 Participants Needed

What You Need to Know Before You Apply

What is the purpose of this trial?

The purpose of this study is to learn about the effects of two study medicines (maplirpacept \[PF-07901801\] and glofitamab) when given together for the treatment of diffuse large B-cell lymphoma (DLBCL) that is relapsed or is refractory. Relapsed means has returned after last treatment. Refractory means that it has not responded to last treatment. The two study medicines are given after a single dose of obinutuzumab which is the third study medicine. DLBCL is a type of non-Hodgkin lymphoma (NHL). NHL is a cancer of the lymphatic system. It develops when the body makes abnormal B lymphocytes. These lymphocytes are a type of white blood cell that normally help to fight infections. This study is seeking adult participants who: * Have histologically confirmed diagnosis of DLBCL * Have received at least two first lines of treatment for NHL. * Are unable or unwilling to undergo a stem cell transplant or CAR-T cell therapy. Stem cell transplant is a procedure in which a patient receives healthy blood-forming cells to replace their own stem cells that have been destroyed by treatment. A CAR-T therapy is a type of treatment in which a patient's T cells are changed in the laboratory so they will attack cancer cells. Everyone in this study will receive all three medicines at the study site by intravenous (IV) infusion which is given directly into a vein. The two study medicines (maplirpacept \[PF-07901801\] and glofitamab) will be given in 21-day cycles. At Cycle 0, participants will receive a single dose of obinutuzumab pre-treatment followed by two step-up doses of glofitamab. The combination of maplirpacept (PF-07901801) with glofitamab full dose will be administered for the first time at Cycle 1 Day 1. Maplirpacept (PF-07901801) will be given weekly for the first three cycles and then every three weeks. Glofitamab will be given every 3 weeks for approximately 9 months. Thereafter participants will continue to receive maplirpacept alone. Maplirpacept (PF-07901801) will be given at different doses to different participants. Everyone taking part will receive the same fixed doses of glofitamab and obinutuzumab studied in patients with DLBCL. The study will compare the experiences of people receiving different doses of maplirpacept (PF-07901801). This will help to determine what dose is safe and effective when given with the other 2 study medicines.

Will I have to stop taking my current medications?

The trial information does not specify whether you need to stop taking your current medications. It's best to discuss this with the trial coordinators or your doctor.

Is the combination therapy for Non-Hodgkin's Lymphoma, including Glofitamab, safe for humans?

Glofitamab has been studied for safety in patients with relapsed or refractory B-cell non-Hodgkin lymphoma. The most common side effects were related to blood cell counts, and some serious side effects included cytokine release syndrome (a severe immune reaction) and febrile neutropenia (fever with low white blood cell count). While some patients experienced severe side effects, the treatment was generally considered manageable with appropriate medical care. ^{1 2 3 4 5}

What makes the drug combination of Glofitamab, Maplirpacept, and Obinutuzumab unique for treating non-Hodgkin's lymphoma?

This drug combination is unique because Glofitamab is a bispecific antibody that engages T-cells to target and kill cancer cells, offering a novel approach for patients with relapsed or refractory non-Hodgkin's lymphoma who have limited treatment options. ^{1 2 3 5 6}

What data supports the effectiveness of the drug combination therapy for Non-Hodgkin's Lymphoma?

Glofitamab, a key component of the combination therapy, has shown promising results in treating relapsed or refractory B-cell non-Hodgkin lymphoma, with over 50% of patients achieving complete responses in clinical trials. It works by engaging T-cells to attack cancer cells, and has been approved in Canada for certain types of difficult-to-treat lymphomas. ^{1 2 5 6 7}

Who Is on the Research Team?

Pfizer CT.gov Call Center

Principal Investigator

Pfizer

Are You a Good Fit for This Trial?

Adults with a confirmed diagnosis of diffuse large B-cell lymphoma (DLBCL) that has returned or hasn't responded to treatment, who have tried at least one therapy including an anti-CD20 antibody but can't or won't get stem cell or CAR-T cell therapy. They should be in good enough health as measured by specific medical standards.

Inclusion Criteria

I've had 1-2 treatments for my condition, including one with an anti-CD20 antibody.

My liver, kidneys, and bone marrow are functioning well.

I can take care of myself and am up and about more than 50% of my waking hours.

Exclusion Criteria

I currently have an active infection.

I have been treated with anti-CD47, glofitamab, or anti-CD20 x CD3 drugs and did not respond to obinutuzumab alone.

I had a stem cell transplant less than 12 weeks ago.

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Pre-Treatment

Participants receive a single dose of obinutuzumab followed by two step-up doses of glofitamab

1 week

1 visit (in-person)

Treatment

Participants receive maplirpacept (PF-07901801) weekly for the first three cycles and then every three weeks, and glofitamab every 3 weeks for approximately 9 months

9 months

Weekly visits for the first 3 cycles, then every 3 weeks

Follow-up

Participants are monitored for safety and effectiveness after treatment

4 weeks

What Are the Treatments Tested in This Trial?

Interventions

• Glofitamab
• Maplirpacept (PF-07901801)
• Obinutuzumab

Trial Overview The trial is testing the combination of two drugs, maplirpacept and glofitamab, after an initial dose of obinutuzumab for relapsed/refractory DLBCL. Participants will receive these medications through IV infusions over several cycles to determine the safest and most effective dosage.

How Is the Trial Designed?

Group I: Phase 2 Experimental Treatment 3 Interventions

Participants will be randomized to 1 of 3 different dose levels of PF-07901801 which will be administered in combination with fixed doses of glofitamab after a dose of obinutuzumab. Approximately 50 participants will be enrolled.

Group II: Phase 1b Experimental Treatment 3 Interventions

Participants will be allocated to sequential dose levels of PF-07901801, administered in combination with fixed doses of glofitamab after a dose of obinutuzumab, to select doses of PF-07901801 for further evaluation in Phase 2. Approximately 20 participants will be enrolled.

Glofitamab is already approved in United States for the following indications:

Approved in United States as COLUMVI for:

• Relapsed or refractory diffuse large B-cell lymphoma not otherwise specified (DLBCL), or large B-cell lymphoma (LBCL) arising from follicular lymphoma, after two or more lines of systemic therapy

Who Is Running the Clinical Trial?

Pfizer

Lead Sponsor

Trials

4,712

Recruited

50,980,000+

Known For

Vaccine Innovations

Top Products

Viagra, Zoloft, Lipitor, Prevnar 13

Albert Bourla

Pfizer

Chief Executive Officer since 2019

PhD in Biotechnology of Reproduction, Aristotle University of Thessaloniki

Patrizia Cavazzoni

Pfizer

Chief Medical Officer

MD from McGill University

Hoffmann-La Roche

Industry Sponsor

Trials

2,482

Recruited

1,107,000+

Headquarters

Basel, Switzerland

Known For

Precision medicine

Top Products

Avastin, Herceptin, Rituxan, Accu-Chek

Dr. Levi Garraway

Hoffmann-La Roche

Chief Medical Officer since 2019

MD from the University of Basel

Dr. Thomas Schinecker

Hoffmann-La Roche

Chief Executive Officer since 2023

PhD in Molecular Biology from New York University

Published Research Related to This Trial

Glofitamab, a bispecific monoclonal antibody targeting CD20 and CD3, was conditionally approved in Canada on March 25, 2023, for adult patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL) who have undergone multiple prior therapies and are ineligible for CAR T-cell therapy.

The drug is currently under regulatory review in the EU and USA, with ongoing clinical development as both a standalone treatment and in combination with other therapies for non-Hodgkin lymphomas.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Glofitamab: First Approval. Shirley, M.[2023]

Glofitamab, a bispecific antibody, demonstrated a 53.8% overall response rate in patients with relapsed or refractory B-cell non-Hodgkin lymphoma, with a complete response rate of 36.8%, indicating its efficacy in a heavily pretreated population.

The treatment had a manageable safety profile, with cytokine release syndrome occurring in 50.3% of patients but mostly at lower grades, and only 2.9% of patients withdrew due to adverse events, suggesting that glofitamab can be safely administered with prior obinutuzumab pretreatment.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Glofitamab, a Novel, Bivalent CD20-Targeting T-Cell-Engaging Bispecific Antibody, Induces Durable Complete Remissions in Relapsed or Refractory B-Cell Lymphoma: A Phase I Trial. Hutchings, M., Morschhauser, F., Iacoboni, G., et al.[2023]

Glofitamab is a promising new treatment for B cell lymphomas that do not respond to standard R-CHOP chemotherapy, which fails in over one-third of cases.

As a bispecific antibody targeting CD20 and CD3, glofitamab works by engaging T cells to attack tumor cells, offering a novel approach for patients with relapsed or refractory lymphoma.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Glofitamab therapy for diffuse large B cell lymphoma: latest updates from the 2022 ASH Annual Meeting. Wang, C., Liu, Y.[2023]

Glofitamab is a novel bispecific T-cell recruiting antibody that targets both CD20 on B-cells and CD3 on T-cells, showing over 50% complete response rates in heavily treated patients with aggressive and indolent B-cell lymphoma during Phase 1 trials.

The unique 2:1 configuration of glofitamab allows for an extended half-life and superior binding to CD20, making it a promising option for patients with limited treatment choices, with ongoing trials evaluating its efficacy in combination therapies and earlier treatment lines.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Glofitamab CD20-TCB bispecific antibody. Minson, A., Dickinson, M.[2022]

Glofitamab, a bispecific antibody targeting CD20 and CD3, demonstrated clinical activity in patients with relapsed/refractory B-cell non-Hodgkin lymphoma during a phase 1 trial, showing T-cell activation and tumor cell killing.

The study identified that tumor intrinsic factors, such as TP53 signaling, may contribute to resistance against glofitamab, indicating that these factors could serve as important biomarkers for predicting treatment response.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Pharmacodynamics and molecular correlates of response to glofitamab in relapsed/refractory non-Hodgkin lymphoma. Bröske, AE., Korfi, K., Belousov, A., et al.[2022]

In a real-world study of 43 patients with relapsed/refractory diffuse large B-cell lymphoma (DLBCL) treated with glofitamab, the median overall survival was 8.8 months, indicating promising efficacy in a heavily pretreated population.

However, the study also highlighted significant safety concerns, with treatment-related deaths occurring due to cytokine release syndrome and febrile neutropenia, emphasizing the need for careful monitoring of hematological toxicity.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Glofitamab in relapsed/refractory diffuse large B-cell lymphoma: Real-world data. Birtas Atesoglu, E., Gulbas, Z., Uzay, A., et al.[2023]

In a study analyzing overall survival (OS) for five treatments of relapsed-refractory diffuse large B-cell lymphoma (DLBCL), tafasitamab plus lenalidomide showed the best OS with a median of 26.5 months and a hazard ratio of 0.514 compared to glofitamab, indicating it may be a more effective option.

Despite glofitamab's advanced mechanism as a bispecific antibody, it did not demonstrate a significant OS advantage over the other treatments, with a median survival of 11.7 months, suggesting that other therapies may be more beneficial for patients.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Treatments for Relapsed-Refractory Diffuse Large B-cell Lymphoma: A Preliminary Evaluation of the Place in Therapy of Glofitamab, a Bispecific Monoclonal Antibody. Messori, A., Rivano, M., Mengato, D., et al.[2023]

Citations

1. New Zealand pubmed.ncbi.nlm.nih.gov

Glofitamab: First Approval. [2023]

2. United States pubmed.ncbi.nlm.nih.gov

Glofitamab, a Novel, Bivalent CD20-Targeting T-Cell-Engaging Bispecific Antibody, Induces Durable Complete Remissions in Relapsed or Refractory B-Cell Lymphoma: A Phase I Trial. [2023]

3. England pubmed.ncbi.nlm.nih.gov

Glofitamab therapy for diffuse large B cell lymphoma: latest updates from the 2022 ASH Annual Meeting. [2023]

4. United States pubmed.ncbi.nlm.nih.gov

Glofitamab CD20-TCB bispecific antibody. [2022]

5. United States pubmed.ncbi.nlm.nih.gov

Pharmacodynamics and molecular correlates of response to glofitamab in relapsed/refractory non-Hodgkin lymphoma. [2022]

6. England pubmed.ncbi.nlm.nih.gov

Glofitamab in relapsed/refractory diffuse large B-cell lymphoma: Real-world data. [2023]

7. United States pubmed.ncbi.nlm.nih.gov

Treatments for Relapsed-Refractory Diffuse Large B-cell Lymphoma: A Preliminary Evaluation of the Place in Therapy of Glofitamab, a Bispecific Monoclonal Antibody. [2023]