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About
This partially randomized phase I/II trial studies the side effects and best dose of WEE1 inhibitor AZD1775 when given together with paclitaxel albumin-stabilized nanoparticle formulation and gemcitabine hydrochloride and how well they work in treating patients with previously untreated pancreatic cancer that has spread to another place in the body or cannot be removed by surgery. Drugs used in chemotherapy, such as paclitaxel albumin-stabilized nanoparticle formulation and gemcitabine hydrochloride, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. WEE1 inhibitor AZD1775 may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. It is not yet known whether paclitaxel albumin-stabilized nanoparticle formulation and gemcitabine hydrochloride are more effective with or without WEE1 inhibitor AZD1775 in treating patients with pancreatic cancer.
Full description
PRIMARY OBJECTIVES:
I. To evaluate the toxicity of combination therapy with nab-paclitaxel (paclitaxel albumin-stabilized nanoparticle formulation), gemcitabine (gemcitabine hydrochloride) and AZD1775 (WEE1 inhibitor MK-1775) in patients with treatment-naive metastatic adenocarcinoma of the pancreas or locally-advanced adenocarcinoma of the pancreas which is not surgically resectable. (Phase I) II. To determine the dose of AZD1775 to be used in combination with nab-paclitaxel and gemcitabine chemotherapy in the phase II portion of the trial. (Phase I) III. To determine the pharmacokinetics of AZD1775 in combination with nab-paclitaxel and gemcitabine. (Phase I) IV. To evaluate progression-free survival (PFS) associated with nab-paclitaxel/gemcitabine/placebo or nab-paclitaxel/gemcitabine/AZD1775 in patients with metastatic adenocarcinoma of the pancreas. (Phase II)
SECONDARY OBJECTIVES:
I. To evaluate overall survival (OS) associated with nab-paclitaxel/gemcitabine/placebo or nab-paclitaxel/gemcitabine/AZD1775 in patients with metastatic adenocarcinoma of the pancreas. (Phase II) II. To evaluate response rate (complete response [CR] + partial response [PR]) associated with nab-paclitaxel/gemcitabine/placebo or nab-paclitaxel/gemcitabine/AZD1775 in patients with metastatic adenocarcinoma of the pancreas. (Phase II) III. To evaluate disease control rate (CR + PR + stable disease [SD]) associated with nab-paclitaxel/gemcitabine/placebo or nab-paclitaxel/gemcitabine/AZD1775 in patients with metastatic adenocarcinoma of the pancreas. (Phase II)
TERTIARY OBJECTIVES:
I. To evaluate the ability of AZD1775 to inhibit Wee1 and increase deoxyribonucleic acid (DNA) damage and tumor cell death when combined with nab-paclitaxel/gemcitabine compared to nab-paclitaxel/gemcitabine/placebo. (Phase II) II. To evaluate if biomarker changes in tumor tissue associated with Wee1 inhibition may also be present in hair follicles. (Phase II) III. To evaluate the change in tumor fludeoxyglucose (FDG) uptake (maximum standardized uptake value [SUVmax]) between baseline FDG-positron emission tomography (PET) and week 4 FDG-PET as a predictor of response using Response Evaluation Criteria in Solid Tumors (RECIST) as the reference standard for response. (Phase II) IV. To evaluate the change in tumor FDG uptake (SUVmax) between baseline FDG-PET and week 4 FDG-PET as a predictor of progression-free survival. (Phase II) V. To compare the change in tumor FDG uptake (SUVmax) between baseline FDG-PET and week 4 FDG-PET between the patients from treatment arms C and D. (Phase II) VI. To evaluate if an early increase in tumor fluorothymidine (FLT) uptake (FLT-flare) is observed within 24 hours after initiation of treatment with nab-paclitaxel/gemcitabine/placebo. (Phase II) VII. To evaluate if an early (within 24 hours [h]) increase in tumor FLT uptake (FLT-flare) is abrogated after initiation of treatment with nab-paclitaxel/gemcitabine/AZD1775. (Phase II) VIII. To compare the change in tumor FLT uptake (SUVmax) from baseline to 24 hours after initiation of treatment between the patients from treatment arms C and D. (Phase II)
OUTLINE: This is a phase I, dose escalation study of WEE1 inhibitor AZD1775 followed by a randomized phase II study. Patients in phase I are assigned to arm A or B and patients in phase II are randomized to arm C or D.
ARM A (PHASE I, DOSE LEVEL 1): Patients receive paclitaxel albumin-stabilized nanoparticle formulation intravenously (IV) over 30 minutes and gemcitabine hydrochloride IV over 30 minutes on days 1, 8, and 15. Patients also receive WEE1 inhibitor AZD1775 orally (PO) daily on days 1, 2, 8, 9, 15, and 16.
ARM B (PHASE I, DOSE LEVEL -2): Patients receive paclitaxel albumin-stabilized nanoparticle formulation, gemcitabine hydrochloride, and WEE1 inhibitor AZD1775 as in Arm A.
ARMS C - G (PHASE I, DOSE LEVEL -1 to DOSE LEVEL 4): Patients receive paclitaxel albumin-stabilized nanoparticle formulation, gemcitabine hydrochloride, and WEE1 inhibitor AZD1775 as in Arm A at various dose levels. These arms did not enroll any patients.
ARM H (PHASE II, Control): Patients receive paclitaxel albumin-stabilized nanoparticle formulation and gemcitabine hydrochloride as in Arm A. The study did not move forward to the phase II part.
ARM I (PHASE II, WEE1 INHIBITOR AZD1775): Patients receive paclitaxel albumin-stabilized nanoparticle formulation, gemcitabine hydrochloride, and WEE1 inhibitor AZD1775 as in Arm A. The study did not move forward to the phase II part.
In all arms, courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up every 3 months for 2 years.
Enrollment
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Volunteers
Inclusion and exclusion criteria
Inclusion Criteria (Phase I):
Exclusion Criteria (Phase I):
Receiving any other investigational agents concurrently
Have received any other investigational agents =< 4 weeks prior to registration
Pre-existing > grade 1 motor or sensory neuropathy
History of allergic reactions attributed to compounds of similar chemical or biologic composition to nab-paclitaxel, gemcitabine or AZD1775
Major surgical procedures <=28 days of beginning study treatment or minor surgical procedures <=7 days
Taking current medications or substances that are inhibitors of CYP3A4, inhibitors or substrates of P-glycoprotein or inhibitors of breast cancer resistance protein (BCRP)
Uncontrolled serious medical illness including, but not limited to, ongoing or active infection, cardiac arrhythmia, or psychiatric illness that would limit compliance with study requirements
Patients with known human immunodeficiency virus (HIV) and cluster of differentiation (CD)4 count is =< 200 cell/mm^3 or receiving antiretroviral therapy due to potential unfavorable interaction of the agents with the study treatment
Previous or concurrent malignancy; exceptions are made for patients who meet any of the following conditions:
Pregnant or breast-feeding
At least18 years of age
Inclusion Criteria (Phase II):
Histologically or cytologically confirmed metastatic adenocarcinoma of the pancreas
Patients must have measurable disease outside of the primary tumor (pancreas) by RECIST 1.1 criteria; baseline measurements and evaluations of all sites of disease must be obtained =< 4 weeks prior to randomization
Previous neo-adjuvant or adjuvant treatment is allowed provided that there was no evidence of recurrent disease for at least 6 months after completion of neo-adjuvant/adjuvant treatment
Patients may have had prior radiotherapy for metastatic disease as long as it was > 4 weeks prior to randomization and the patient has recovered from adverse events associated with the radiotherapy
ECOG performance status of 0 or 1
Life expectancy of >= 12 weeks
Patients must be able to swallow capsules whole
Patients with biliary stents are allowed
Patients must be able to tolerate CT, MRI or PET imaging including contrast agents
Women of child-bearing potential and men must agree to use adequate contraception (hormonal and barrier method of birth control; two barrier methods of birth control; abstinence) for the duration of study treatment and for 3 months after the last dose of study treatment; should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately; should a man impregnate or suspect that he has impregnated a woman while participating in this study, he should inform his treating physician immediately
Leukocytes >= 3,000/mcL
Absolute neutrophil count >= 1,500/mcL
Hemoglobin >= 9 g/dL
Platelets >= 100,000/mcL
Total bilirubin =< 1.5 institutional upper limit of normal (ULN)
AST (SGOT)/ALT (SGPT) =< 3 X institutional upper limit of normal (ULN) or =< 5 X ULN if the patient has liver metastases
Creatinine =< 1.5 mg/dL or creatinine clearance (Cockcroft-Gault) >= 60 mL/min for patients with creatinine levels above institutional upper limit of normal (ULN)
For participation in the imaging research studies, patients must meet the additional following criteria:
The patient is participating in the trial at an institutional which has agreed to perform the imaging research studies, completed the American College of Radiation Imaging Network (ACRIN) defined scanner qualification procedures and received ACRIN approval
The patient has consented in writing to participate in one of the imaging research studies
The patient meets the criteria required for the imaging study in which the site is participating:
For participation in the FDG-PET sub-study:
For participation in the FLT-PET sub-study:
Phase II Exclusion Criteria:
Prior systemic therapy for metastatic disease
Locally advanced disease
Major surgical procedures <=28 days of beginning study treatment or minor surgical procedures <=7 days
Any of the following cardiac diseases at registration or within the last 6 months as defined by New York Heart Association (NYHA) ≥ Class 2:
Taking current medications or substances that are inhibitors of CYP3A4, inhibitors or substrates of P-glycoprotein or inhibitors of breast cancer resistance protein (BCRP)
Prior Wee1 inhibitors or AZD1775
Prior gemcitabine or nab-paclitaxel in a metastatic setting
Corrected QT interval QTc > 470 msec (as calculated per institutional standards) at study entry or congenital long QT syndrome).
Receiving any other investigational agents concurrently or have received any other investigational agents =< 4 weeks prior to randomization
Pre-existing > grade 1 motor or sensory neuropathy
History of allergic reactions attributed to compounds of similar chemical or biologic composition to nab-paclitaxel, gemcitabine or AZD1775
Uncontrolled serious medical illness including, but not limited to, ongoing or active infection, cardiac arrhythmia, or psychiatric illness that would limit compliance with study requirements
Previous or concurrent malignancy; exceptions are made for patients who meet any of the following conditions:
Pregnant or breast-feeding
For participation in the FDG-PET sub-study:
For participation in the FLT-PET sub-study:
Primary purpose
Allocation
Interventional model
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8 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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