A Safety, Efficacy and Pharmacokinetic Study of BTCT4465A (Mosunetuzumab) as a Single Agent and Combined With Atezolizumab in Non-Hodgkin's Lymphoma (NHL) and Chronic Lymphocytic Leukemia (CLL)

NCT ID: NCT02500407

Last Updated: 2025-09-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1/PHASE2

Total Enrollment

713 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-09-15

Study Completion Date

2025-09-01

Brief Summary

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This is a Phase 1/2 dose-escalation study of BTCT4465A (Mosunetuzumab) administered as a single agent and in combination with atezolizumab in participants with relapsed or refractory B-cell NHL and CLL. The study will consist of a dose-escalation stage and an expansion stage where participants will be enrolled into indication-specific cohorts.

Detailed Description

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Conditions

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Lymphocytic Leukemia, Chronic Lymphoma, Non Hodgkin

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Dose Escalation

Participants will receive BTCT4465A (Mosunetuzumab) via intravenous (IV) infusion or subcutaneous (SC) injection as a single-agent or in combination with atezolizumab. Dose escalation will be guided by the observed incidence of DLTs at each dose level.

Group Type EXPERIMENTAL

BTCT4465A (Mosunetuzumab) IV

Intervention Type DRUG

Participants with B-cell NHL and CLL will receive BTCT4465A (Mosunetuzumab) via IV infusion.

Atezolizumab

Intervention Type DRUG

Participants assigned to an atezolizumab combination group will receive atezolizumab 1200 mg administered as an IV infusion in combination with BTCT4465A (Mosunetuzumab).

BTCT4465A (Mosunetuzumab) SC

Intervention Type DRUG

Participants with B-cell NHL and CLL will receive BTCT4465A (Mosunetuzumab) via SC injection.

Dose Expansion

Participants will receive BTCT4465A (Mosunetuzumab) as a single-agent or in combination with atezolizumab.

Group Type EXPERIMENTAL

BTCT4465A (Mosunetuzumab) IV

Intervention Type DRUG

Participants with B-cell NHL and CLL will receive BTCT4465A (Mosunetuzumab) via IV infusion.

Atezolizumab

Intervention Type DRUG

Participants assigned to an atezolizumab combination group will receive atezolizumab 1200 mg administered as an IV infusion in combination with BTCT4465A (Mosunetuzumab).

BTCT4465A (Mosunetuzumab) SC

Intervention Type DRUG

Participants with B-cell NHL and CLL will receive BTCT4465A (Mosunetuzumab) via SC injection.

Interventions

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BTCT4465A (Mosunetuzumab) IV

Participants with B-cell NHL and CLL will receive BTCT4465A (Mosunetuzumab) via IV infusion.

Intervention Type DRUG

Atezolizumab

Participants assigned to an atezolizumab combination group will receive atezolizumab 1200 mg administered as an IV infusion in combination with BTCT4465A (Mosunetuzumab).

Intervention Type DRUG

BTCT4465A (Mosunetuzumab) SC

Participants with B-cell NHL and CLL will receive BTCT4465A (Mosunetuzumab) via SC injection.

Intervention Type DRUG

Other Intervention Names

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Tecentriq

Eligibility Criteria

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Inclusion Criteria

* Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
* B-cell hematologic malignancies expected to express the cluster of differentiation 20 (CD20) antigen who have relapsed after or failed to respond to at least one prior treatment regimen and for whom there is no available therapy expected to improve survival
* Adequate hepatic, hematologic, and renal function

Exclusion Criteria

* Pregnant or lactating women
* Monoclonal antibody, radioimmunoconjugate, antibody-drug conjugate, chemotherapy, or other investigational anti-cancer agent within 4 weeks prior to study drug
* Treatment with radiotherapy within 2 weeks prior to the first BTCT4465A (Mosunetuzumab) administration
* Systemic immunosuppressive medication within 2 weeks prior to study drug
* Autologous stem cell transplantation (SCT) within 100 days prior to study drug, or any prior allogeneic SCT or solid organ transplantation
* Autoimmune disease with the exception of controlled/treated hypothyroidism, disease-related immune thrombocytopenic purpura, or hemolytic anemia
* History of central nervous system (CNS) lymphoma or other CNS disease
* Significant cardiovascular or pulmonary disease
* Hepatitis B or C or human immunodeficiency virus (HIV)
* Receipt of a live attenuated vaccine within 4 weeks prior to study drug
* Prior treatment with chimeric antigen receptor T-cell (CAR-T) therapy within 30 days before first BTCT4465A (Mosunetuzumab) administration
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Genentech, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Clinical Trials

Role: STUDY_DIRECTOR

Hoffmann-La Roche

Locations

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University of California San Diego Moores Cancer Center

La Jolla, California, United States

Site Status

Sansum Medical Clinic, Inc.

Santa Barbara, California, United States

Site Status

Rocky Mountain Cancer Center

Denver, Colorado, United States

Site Status

Yale University School Of Medicine

New Haven, Connecticut, United States

Site Status

Hackensack University Medical Center

Hackensack, New Jersey, United States

Site Status

Memorial Sloan Kettering Bergen

Montvale, New Jersey, United States

Site Status

Memorial Sloan Kettering Cancer Center - Commack

Commack, New York, United States

Site Status

Memorial Sloan Kettering Cancer Center at Westchester

Harrison, New York, United States

Site Status

New York Uni Medical Center

New York, New York, United States

Site Status

Willamette Valley Cancer Insitute and Research Center

Springfield, Oregon, United States

Site Status

University of Pennsylvania

Philadelphia, Pennsylvania, United States

Site Status

MD Anderson Cancer Center

Houston, Texas, United States

Site Status

St Vincent's Hospital Sydney

Darlinghurst, New South Wales, Australia

Site Status

Icon Cancer Care South Brisbane

South Brisbane, Queensland, Australia

Site Status

Princess Alexandra Hospital

Woolloongabba, Queensland, Australia

Site Status

Royal Adelaide Hospital

Adelaide, South Australia, Australia

Site Status

St. Vincent's Hospital Melbourne

Fitzroy, South Australia, Australia

Site Status

Royal Hobart Hospital

Hobart, Tasmania, Australia

Site Status

Monash Health Clinical Trial Pharmacy department

Clayton, Victoria, Australia

Site Status

The Perth Blood Institute

Nedlands, Western Australia, Australia

Site Status

Princess Margaret Hospital

Toronto, Ontario, Canada

Site Status

Jewish General Hospital

Montreal, Quebec, Canada

Site Status

Universitatsklinikum Koln

Cologne, , Germany

Site Status

Universitätsklinikum Heidelberg

Heidelberg, , Germany

Site Status

Universitaetsmedizin der Johannes Gutenberg-Universitaet Mainz

Mainz, , Germany

Site Status

Klinikum der Universität München, Campus Großhadern

München, , Germany

Site Status

Seoul National University Hospital

Seoul, , South Korea

Site Status

Samsung Medical Center

Seoul, , South Korea

Site Status

Clínica Universidad de Navarra

Pamplona, Navarre, Spain

Site Status

Hospital Universitario Vall d Hebron

Barcelona, , Spain

Site Status

Hospital Universitario La Paz

Madrid, , Spain

Site Status

Complejo Asistencial Universitario de Salamanca

Salamanca, , Spain

Site Status

Barts Cancer Institute

London, , United Kingdom

Site Status

The Christie NHS Foundation Trust

Manchester, , United Kingdom

Site Status

Royal Marsden Hospital;Institute of Cancer Research

Sutton, , United Kingdom

Site Status

Countries

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United States Australia Canada Germany South Korea Spain United Kingdom

References

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Danilov AV, Kambhampati Thiruvengadam S, Linton K, Cumings K, Chirikov V, Mutebi A, Bains Chawla S, Chhibber A, Rivas Navarro F, Marques Goncalves F, Wang A, Ding Z, Alshreef A, Favaro E, Hoehn D, Sureda A. Indirect comparison of epcoritamab vs chemoimmunotherapy, mosunetuzumab, or odronextamab in follicular lymphoma. Blood Adv. 2025 Aug 12;9(15):3754-3765. doi: 10.1182/bloodadvances.2024015274.

Reference Type DERIVED
PMID: 40472301 (View on PubMed)

Li J, Liao MZ, Wilkins J, Penuel E, Wang B, Vadhavkar S, Peng K, Cao J, Li Z, Zhang Y, Li W, Li D, Zhou M, Wei MC, Kwan A, Zhao R, Li C, Li CC, Turner DC. Ethnic Sensitivity Assessment of Mosunetuzumab Pharmacokinetics and Pharmacodynamics in Chinese Patients With Relapsed or Refractory Follicular Lymphoma. Clin Transl Sci. 2025 May;18(5):e70211. doi: 10.1111/cts.70211.

Reference Type DERIVED
PMID: 40279333 (View on PubMed)

Chong EA, Penuel E, Napier EB, Lundberg RK, Budde LE, Shadman M, Matasar MJ, Bartlett NL, Flinn IW, Bosch F, Fay K, Goy A, Kumar A, Nastoupil LJ, Wei MC, Wu M, Yin S, Fraietta JA, Chong ER, Schuster SJ. Impact of prior CAR T-cell therapy on mosunetuzumab efficacy in patients with relapsed or refractory B-cell lymphomas. Blood Adv. 2025 Feb 25;9(4):696-703. doi: 10.1182/bloodadvances.2024013640.

Reference Type DERIVED
PMID: 39571171 (View on PubMed)

Sehn LH, Bartlett NL, Matasar MJ, Schuster SJ, Assouline SE, Giri P, Kuruvilla J, Shadman M, Cheah CY, Dietrich S, Fay K, Ku M, Nastoupil LJ, Wei MC, Yin S, To I, Kaufman D, Kwan A, Penuel E, Bolen CR, Budde LE. Long-term 3-year follow-up of mosunetuzumab in relapsed or refractory follicular lymphoma after >/=2 prior therapies. Blood. 2025 Feb 13;145(7):708-719. doi: 10.1182/blood.2024025454.

Reference Type DERIVED
PMID: 39447094 (View on PubMed)

Ray MD, Kanters S, Beygi S, Best T, Wulff J, Limbrick-Oldfield E, Patel AR, Oluwole OO. Matching-Adjusted Indirect Comparisons of Axicabtagene Ciloleucel to Mosunetuzumab for the Treatment of Relapsed/Refractory Follicular Lymphoma. Transplant Cell Ther. 2024 Sep;30(9):885.e1-885.e11. doi: 10.1016/j.jtct.2024.06.016. Epub 2024 Jun 19.

Reference Type DERIVED
PMID: 38901633 (View on PubMed)

Jemaa S, Ounadjela S, Wang X, El-Galaly TC, Kostakoglu L, Knapp A, Ku G, Musick L, Sahin D, Wei MC, Yin S, Bengtsson T, De Crespigny A, Carano RAD. Automated Lugano Metabolic Response Assessment in 18F-Fluorodeoxyglucose-Avid Non-Hodgkin Lymphoma With Deep Learning on 18F-Fluorodeoxyglucose-Positron Emission Tomography. J Clin Oncol. 2024 Sep 1;42(25):2966-2977. doi: 10.1200/JCO.23.01978. Epub 2024 Jun 6.

Reference Type DERIVED
PMID: 38843483 (View on PubMed)

Bender B, Li CC, Marchand M, Turner DC, Li F, Vadhavkar S, Wang B, Deng R, Lu J, Jin J, Li C, Yin S, Wei M, Chanu P. Population pharmacokinetics and CD20 binding dynamics for mosunetuzumab in relapsed/refractory B-cell non-Hodgkin lymphoma. Clin Transl Sci. 2024 Jun;17(6):e13825. doi: 10.1111/cts.13825.

Reference Type DERIVED
PMID: 38808543 (View on PubMed)

Budde LE, Assouline S, Sehn LH, Schuster SJ, Yoon SS, Yoon DH, Matasar MJ, Bosch F, Kim WS, Nastoupil LJ, Flinn IW, Shadman M, Diefenbach C, Cheah CY, Ma CY, Huang H, Kwan A, Wei MC, Yin S, Bartlett NL. Durable Responses With Mosunetuzumab in Relapsed/Refractory Indolent and Aggressive B-Cell Non-Hodgkin Lymphomas: Extended Follow-Up of a Phase I/II Study. J Clin Oncol. 2024 Jul 1;42(19):2250-2256. doi: 10.1200/JCO.23.02329. Epub 2024 Mar 28.

Reference Type DERIVED
PMID: 38547425 (View on PubMed)

Schuster SJ, Huw LY, Bolen CR, Maximov V, Polson AG, Hatzi K, Lasater EA, Assouline SE, Bartlett NL, Budde LE, Matasar MJ, Koeppen H, Piccione EC, Wilson D, Wei MC, Yin S, Penuel E. Loss of CD20 expression as a mechanism of resistance to mosunetuzumab in relapsed/refractory B-cell lymphomas. Blood. 2024 Feb 29;143(9):822-832. doi: 10.1182/blood.2023022348.

Reference Type DERIVED
PMID: 38048694 (View on PubMed)

Bosch F, Kuruvilla J, Vassilakopoulos TP, Maio DD, Wei MC, Zumofen MB, Nastoupil LJ. Indirect Treatment Comparisons of Mosunetuzumab With Third- and Later-Line Treatments for Relapsed/Refractory Follicular Lymphoma. Clin Lymphoma Myeloma Leuk. 2024 Feb;24(2):105-121. doi: 10.1016/j.clml.2023.09.007. Epub 2023 Sep 28.

Reference Type DERIVED
PMID: 37981564 (View on PubMed)

Sanchez Alvarez J, Jaber M, Blanchet Zumofen MH. Multiple Real-World Data Sources in a Bayesian Framework to Inform Long-Term Survival Estimates of Mosunetuzumab in Patients with Follicular Lymphoma. Oncol Ther. 2023 Dec;11(4):495-511. doi: 10.1007/s40487-023-00245-4. Epub 2023 Oct 18.

Reference Type DERIVED
PMID: 37851321 (View on PubMed)

Bartlett NL, Assouline S, Giri P, Schuster SJ, Cheah CY, Matasar M, Gregory GP, Yoon DH, Shadman M, Fay K, Yoon SS, Panizo C, Flinn I, Johnston A, Bosch F, Sehn LH, Wei MC, Yin S, To I, Li CC, Huang H, Kwan A, Penuel E, Budde LE. Mosunetuzumab monotherapy is active and tolerable in patients with relapsed/refractory diffuse large B-cell lymphoma. Blood Adv. 2023 Sep 12;7(17):4926-4935. doi: 10.1182/bloodadvances.2022009260.

Reference Type DERIVED
PMID: 37067952 (View on PubMed)

Budde LE, Sehn LH, Matasar M, Schuster SJ, Assouline S, Giri P, Kuruvilla J, Canales M, Dietrich S, Fay K, Ku M, Nastoupil L, Cheah CY, Wei MC, Yin S, Li CC, Huang H, Kwan A, Penuel E, Bartlett NL. Safety and efficacy of mosunetuzumab, a bispecific antibody, in patients with relapsed or refractory follicular lymphoma: a single-arm, multicentre, phase 2 study. Lancet Oncol. 2022 Aug;23(8):1055-1065. doi: 10.1016/S1470-2045(22)00335-7. Epub 2022 Jul 5.

Reference Type DERIVED
PMID: 35803286 (View on PubMed)

Budde LE, Assouline S, Sehn LH, Schuster SJ, Yoon SS, Yoon DH, Matasar MJ, Bosch F, Kim WS, Nastoupil LJ, Flinn IW, Shadman M, Diefenbach C, O'Hear C, Huang H, Kwan A, Li CC, Piccione EC, Wei MC, Yin S, Bartlett NL. Single-Agent Mosunetuzumab Shows Durable Complete Responses in Patients With Relapsed or Refractory B-Cell Lymphomas: Phase I Dose-Escalation Study. J Clin Oncol. 2022 Feb 10;40(5):481-491. doi: 10.1200/JCO.21.00931. Epub 2021 Dec 16.

Reference Type DERIVED
PMID: 34914545 (View on PubMed)

Other Identifiers

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GO29781

Identifier Type: -

Identifier Source: org_study_id

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