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A clinical study that will test whether cobimetinib plus atezolizumab and atezolizumab alone are effective and safe in patients with colorectal cancer that has spread when compared to regorafenib

Phase 1
Conditions
The patient population are patients with metastatic or locally advanced unresectable colorectal adenocarcinoma that have received at least two lines of chemotherapy in this setting. The patients must have received 5-FU, oxaliplatin, and irinitecan. Patients who have received an anti-VEGF and anti-EGFR are eligible.
MedDRA version: 21.0Level: PTClassification code 10061451Term: Colorectal cancerSystem Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps)
MedDRA version: 21.0Level: PTClassification code 10052358Term: Colorectal cancer metastaticSystem Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Therapeutic area: Diseases [C] - Cancer [C04]
Registration Number
EUCTR2016-000202-11-IT
Lead Sponsor
F. HOFFMANN - LA ROCHE LTD.
Brief Summary

Not available

Detailed Description

Not available

Recruitment & Eligibility

Status
ot Recruiting
Sex
All
Target Recruitment
363
Inclusion Criteria

Disease specific inclusion criteria:
• Histologically confirmed adenocarcinoma originating from the colon or
rectum (Stage IV American Joint Committee on Cancer 7th edition)
• Experienced disease progression on at least two prior systemic
chemotherapy regimens for mCRC
1. Prior systemic cytotoxic chemotherapy must include ALL of the
following agents:
a) Fluoropyrimidines
b) Irinotecan
c) Oxaliplatin
2. Patients who have received prior anti-angiogenic therapy (e.g.,
bevacizumab) and/or anti epidermal growth factor receptor therapy
(e.g., cetuximab) are eligible.
3. Patients must have had documented disease progression within 3
months of the last systemic therapy administration.
4. Patients who were intolerant to prior systemic chemotherapy
regimens are eligible if there is documented evidence of clinically
significant intolerance despite adequate supportive measures.
5. For patients who had disease recurrence within 6 months of
completing adjuvant chemotherapy, the adjuvant regimen can be
considered as one chemotherapy regimen for metastatic disease.
General inclusion criteria:
• Signed Informed Consent Form
• Age = 18 years
• In the investigator's judgment, patient is able to comply with the
requirements and assessments of the study protocol
•Eastern Cooperative Oncology Group performance status of 0 or 1
•Anticipated life expectancy = 3 months
•Able to comply with the requirements and assessments of the study
protocol
•Adequate hematologic and end organ function, defined by the following
laboratory results obtained within 14 days prior to first dose of study
drug treatment:
1.Hemoglobin = 9 g/dL, platelet count = 100,000/mm3, ANC =
1500/mm3
2.Creatinine clearance = 30 mL/min
3.Amylase and lipase = 1.5 x the upper limit of normal (ULN)
4.Serum bilirubin = 1.5x ULN; patients with known Gilbert's disease may
have a bilirubin = 3.0x ULN
5.AST, ALT, and alkaline phosphatase (ALP) = 2.5 ULN with the following
exceptions:
a)Patients with documented liver metastases: AST and/or ALT = 5 x ULN
b)Patients with documented liver or bone metastases: ALP = 5 x ULN
6.INR and PTT = 1.5 x ULN. Patients who are on therapeutic doses of
anti coagulants are eligible if they are on a stable dose of anti-coagulant
for 28 days with stable INR and PTT values.
•Women of childbearing potential must agree to appropriately use an
effective form of contraception (failure rate of < 1% per year) during the
treatment period, within 5 months after the last dose of atezolizumab, and within 3 months after the last dose of cobimetinib and regorafenib.
7.A woman of childbearing potential is defined as a sexually mature
woman without prior ophorectomy or hysterectomy who have had
menses within the last 12 months.
8.A woman is not considered to be of childbearing potential if she has
become amenorrheic for > 12 months and has a follicle stimulating
hormone level = 40 IU/L
•Men must agree not to donate sperm or have intercourse with a female
partner without using appropriate barrier contraception during the
treatment period and for 3 months after the last dose of either cobimetinib or regorafenib.
•Available and adequate baseline tumor tissue sample (archival or newly
obtained biopsy)
Are the trial subjects under 18? no
Number of subjects for this age range:
F.1.2 Adults (18-64 years) yes
F.1.2.1 Number of subjects for this age range 180
F.1.3 Elderly (>=65 years) yes
F.1.3.1 Number of subjects for this age range 180

Exclusion Criteria

Cancer-related exclusion criteria:
•After the approximate 5% cap for MSI-high patients is reached, only
MSI-stable patients will be eligible.
•Major surgery or radiotherapy within 21 days prior to Cycle 1 Day 1 or
anticipation of needing such procedure while receiving study treatment.
•Treatment with any anti-cancer agent within 14 days prior to Cycle 1
Day 1
•Uncontrolled tumor-related pain. Patients requiring narcotic pain
medication must be on a stable regimen at study entry.
•Uncontrolled pleural effusion, pericardial effusion or ascites requiring
repeated drainage more than once every 28 days. Indwelling drainage
catheters (e.g., PleurX ) are allowed.
•Active or untreated CNS metastases are excluded. Patients with
treated and asymptomatic CNS metastases are eligible,
•Exclusion criteria related to study medication:
Any cancer immunotherapy including CD137 agonists, anti-programmed
death-1, anti PD L1, or anti CTLA4; Any MEK or ERK inhibitor; and
Regorafenib
•Patients with active malignancy (other than CRC) or a prior malignancy
within the past 3 years are excluded. Patients with completely resected
cutaneous melanoma (early stage), basal cell carcinoma, cutaneous
squamous cell carcinoma, cervical carcinoma in-situ, breast carcinoma
in-situ, and localized prostate cancer are eligible.
Exclusion criteria based on organ function or medical history:
Cardiovascular:
•Unstable angina, new onset angina within last 3 months, myocardial
infarction within last 6 months and current congestive heart failure New
York Heart Association Class II or higher.
•Left ventricular ejection fraction below institutional lower limit of
normal or below 50%, whichever is lower.
•Poorly controlled hypertension, defined as a blood pressure
consistently above 150/90 mmHg despite optimal medical management.
Infections:
•HIV infection
•Severe infections within 2 weeks prior to Cycle 1 Day 1
•Signs or symptoms of significant infection within 2 weeks prior to Cycle
1 Day 1
•Received oral or IV antibiotics within 2 weeks prior to Cycle 1 Day 1
•Active or chronic viral hepatitis B or C infection
Ocular:
•History of or evidence of retinal pathology on ophthalmologic
examination that is considered a risk factor for central serous
retinopathy, retinal vein occlusion, or neovascular macular degeneration
•Patients will be excluded if they currently have risk factors for retinal
vein occlusion
Autoimmune conditions and immunomodulatory drugs:
•History of autoimmune disease
•History of idiopathic pulmonary fibrosis, organizing pneumonia,
bronchiolitis obliterans, drug-induced pneumonitis, or idiopathic
pneumonitis
Other medical conditions or medications:•Any hemorrhage or bleeding event CTCAE Grade 3 or higher within 28
days of Cycle 1 Day 1
•Foods, supplements or drugs that are potent CYP3A4 enzyme inducer or
inhibitors are prohibited at least 7 days prior to Cycle 1 Day 1 and during
study treatment. General exclusion criteria:
•Inability to swallow medications
•Malabsorption condition that would alter the absorption of orally
administered medications
•Pregnant, lactating, breastfeeding, or intending to become pregnant
during the study
•History of severe hypersensitivity reactions to components of:
Cobimetinib formulation, Regorafenib formulation, Atezolizumab
formulation, including Chinese hamster ovary cell products, chimeric or
humanized antibodies, or fusion proteins.
•Administration of a live, attenuated vaccine within 4 weeks before
randomization or anticipation of

Study & Design

Study Type
Interventional clinical trial of medicinal product
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
Secondary Outcome Measures
NameTimeMethod
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