A Study Evaluating the Efficacy and Safety of Multiple Immunotherapy-Based Treatment Combinations in Patients With Metastatic or Inoperable Locally Advanced Triple-Negative Breast Cancer (Morpheus-TNBC)



Status:Recruiting
Conditions:Breast Cancer, Cancer
Therapuetic Areas:Oncology
Healthy:No
Age Range:18 - Any
Updated:3/21/2019
Start Date:March 30, 2018
End Date:August 1, 2021
Contact:Reference Study ID Number: CO40115 www.roche.com/about_roche/roche_worldwide.htm
Email:global-roche-genentech-trials@gene.com
Phone:888-662-6728 (U.S. and Canada)

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A Phase Ib/II, Open-Label, Multicenter, Randomized Umbrella Study Evaluating The Efficacy And Safety Of Multiple Immunotherapy-Based Treatment Combinations In Patients With Metastatic Triple-Negative Breast Cancer (Morpheus-TNBC)

This is a Phase Ib/II, open-label, multicenter, randomized umbrella study evaluating the
efficacy and safety of multiple immunotherapy-based treatment combinations in patients with
metastatic or inoperable locally advanced TNBC who had disease progression during or
following first-line metastatic treatment with chemotherapy.

The study will be performed in two stages. During Stage 1, participants will be randomized to
capecitabine (control) or an atezolizumab-containing doublet or triplet combination. Those
who experience disease progression, loss of clinical benefit, or unacceptable toxicity may be
eligible to receive a new doublet combination treatment in Stage 2 until loss of clinical
benefit or unacceptable toxicity. New treatment arms may be added and/or existing treatment
arms may be closed during the course of the study on the basis of ongoing clinical efficacy
and safety as well as the current treatments available.


Inclusion Criteria Stage 1

- ECOG Performance Status of 0 or 1

- Metastatic or inoperable locally advanced, histologically documented TNBC (absence of
HER2, ER, and PR expression)

- Radiologic/objective evidence of recurrence or disease progression after chemotherapy
for a total of one line of therapy for inoperable locally advanced or metastatic
breast cancer

- Availability of a representative tumor specimen that is suitable for determination of
PD-L1 and/or additional biomarker status via central testing

- Eligible for capecitabine monotherapy

- Life expectancy =/> 3 months, as determined by the investigator

- Tumor accessible for biopsy

- For women of childbearing potential: agreement to remain abstinent (refrain from
heterosexual intercourse) or use contraceptive measures and agreement to refrain from
breastfeeding and donating eggs as outlined for each specific treatment arm

- For men: agreement to remain abstinent (refrain from heterosexual intercourse) or use
contraceptive measures, and agreement to refrain from donating sperm, as outlined for
each specific treatment arm

- Adequate hematologic and end-organ function, laboratory test results, obtained within
14 days prior to initiation of study treatment.

- Negative HIV test at screening

- Negative hepatitis B surface antigen test

- Negative total hepatitis B core antibody (HBcAb)

- Negative hepatitis C virus (HCV) antibody test at screening

- Measurable disease (at least one target lesion)

Inclusion criteria stage 2

- ECOG Performance Status of 0, 1, or 2

- Patients randomly allocated to the control arm during Stage 1: ability to initiate
Stage 2 treatment within 3 months after experiencing unacceptable toxicity, provided
that Medical Monitor approval for entry into Stage 2 is obtained, or disease
progression per RECIST v1.1 while receiving control treatment

- Patients randomly allocated to an experimental arm during Stage 1: ability to initiate
Stage 2 treatment within 3 months after experiencing unacceptable toxicity not related
to atezolizumab, disease progression per RECIST v1.1, or loss of clinical benefit as
determined by the investigator (see Section 3.1.1.1 for details) while receiving Stage
1 treatment

- Availability of a tumor specimen from a biopsy performed upon discontinuation of Stage
1 (if deemed clinically feasible by the investigator)

Exclusion Criteria for Stage 1

- Prior treatment with any of the Stage 1 protocol-specified study treatments included
in arms that are open at the time of screening, with the exception of capecitabine

- Treatment with investigational therapy within 28 days prior to initiation of study
treatment

- Inability to swallow medication or malabsorption condition that would alter the
absorption of orally administered medications

- Treatment with sorivudine or its chemically related analogues, such as brivudine

- History of severe and unexpected reactions to fluoropyrimidine therapy

- Uncontrolled pleural effusion, pericardial effusion, or ascites requiring recurrent
drainage procedures (once monthly or more frequently)

- Uncontrolled tumor-related pain

- Symptomatic, untreated, or actively progressing CNS metastases

- History of leptomeningeal disease

- Active or history of autoimmune disease or immune deficiency

- History of idiopathic pulmonary fibrosis, organizing pneumonia (e.g., bronchiolitis
obliterans), drug-induced pneumonitis, or idiopathic pneumonitis, or evidence of
active pneumonitis on screening chest computed tomography (CT) scan History of
radiation pneumonitis in the radiation field (fibrosis) is permitted.

- Active tuberculosis

- Severe infection within 4 weeks prior to initiation of study treatment

- Treatment with therapeutic oral or IV antibiotics within 2 weeks prior to initiation
of study treatment

- Significant cardiovascular disease

- Prior allogeneic stem cell or solid organ transplantation

- History of malignancy other than breast cancer within 2 years prior to screening, with
the exception of those with a negligible risk of metastasis or death

- Treatment with systemic immunosuppressive medication (including, but not limited to,
corticosteroids, cyclophosphamide, azathioprine, methotrexate, thalidomide, and
anti-tumor necrosis factor alpha agents) within 2 weeks prior to initiation of study
treatment, or anticipation of need for systemic immunosuppressive medication during
the course of the study

- Pregnancy or breastfeeding, or intention of becoming pregnant during the study

- Additional drug-specific exclusion criteria might apply.
We found this trial at
9
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New Brunswick, New Jersey 08903
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Germantown, Tennessee 38138
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Hackensack, NJ
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3855 Health Sciences Drive
La Jolla, California 92093
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305 Grattan Street
Melbourne, Victoria 3000
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New York, NY
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111 S 11th St
Philadelphia, Pennsylvania 19107
(215) 955-6000
Thomas Jefferson University Hospital Our hospitals in Center City Philadelphia share a 13-acre campus with...
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Philadelphia, PA
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200 Lothrop St
Pittsburgh, Pennsylvania 15213
University of Pittsburgh Medical Center UPMC is one of the leading nonprofit health systems in...
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