Dose Escalation Trial of AZD1775 and Gemcitabine (+Radiation) for Unresectable Adenocarcinoma of the Pancreas

DOSE ESCALATION TRIAL OF THE Wee1 INHIBITOR AZD1775, IN COMBINATION WITH GEMCITABINE (+RADIATION) FOR PATIENTS WITH UNRESECTABLE ADENOCARCINOMA OF THE PANCREAS

The investigators' long-term goal is to improve the survival of patients with pancreatic cancer by enhancing the efficacy of gemcitabine-radiation by adding the Wee1 inhibitor MK-1775.

Study Overview

• Status: Completed
• Conditions: Adenocarcinoma of the Pancreas
• Intervention / Treatment: Drug: MK-1775; Drug: Gemcitabine; Radiation: Radiation Therapy

• Study Type: Interventional
• Enrollment (Actual): 34
• Phase: Phase 2; Phase 1

Contacts and Locations

Study Locations

• United States
  • Michigan
    • Ann Arbor, Michigan, United States, 48109
      • University of Michigan Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Patients must have pathologically confirmed adenocarcinoma of the pancreas.
• Patients will have unresectable disease, defined radiographically as >180 degrees involvement of the superior mesenteric artery or celiac trunk or SMV/portal vein impingement that cannot be surgically reconstructed, in the absence of distant metastasis..
• Patients must have a Zubrod performance status (measure of general well being that ranges from 0 to 5 where 0 represents perfect health) of < 2.
• Patients must have adequate organ function defined as follows: absolute neutrophil count of ≥ 1500/mm3, platelets ≥ 100,000/mm3, serum creatinine ≤ 2 mg/dl, total bilirubin ≤ 3, (with relief of biliary obstruction if present (PTC tube or endobiliary stent)) and AST < 5 times the upper limit of normal.
• Patients of reproductive potential must agree to use an effective contraceptive method during participation in this trial and for 6 months after the trial. Patients must not be breastfeeding.
• Patients must be aware of the investigational nature of the therapy and provide written informed consent.
• Patients must be at least 18 years old.

Exclusion Criteria:

• Other serious uncontrolled concomitant systemic disorders or psychiatric condition that would interfere with the safe delivery of protocol therapy.
• A history of previous chemotherapy for pancreatic cancer or abdominal radiation therapy.
• The use of any investigational agent in the month before enrollment into the study.
• Inability to discontinue a prescription or non-prescription drugs or other products known to be metabolized by CYP3A4, or to inhibit or induce CYP3A4 prior to Day 1 of dosing and to withhold throughout the study until 2 weeks after the last dose of study medication. Medications of particular concern are the following inhibitors of CYP3A4: azole antifungals (ketoconazole itraconazole, fluconazole and voriconazole), macrolide antibiotics (erythromycin, clarithromycin), cimetidine, aprepitant, HIV protease inhibitors, nefazodone and the following inducers of CYP3A4: phenytoin, barbiturates and rifampicin. Substrates of CYP3A4 include statins (lovastatin, simvastatin), midazolam, terfenadine, astemizole, and cisapride.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Experimental: MK-1775/ Gemcitabine/ Radiation Therapy

Drug: MK-1775; MK-1775 will be given as an oral capsule on days 1 and 2, and on days 8 and 9 of every 3-week cycle .; Drug: Gemcitabine; Gemcitabine 1000mg/m2 will be infused over 30 minutes on days 1 and 8 of a 3 -week treatment cycle.; Radiation: Radiation Therapy; 52.5Gy in 25 fractions (2.1Gy/fraction), using intensity modulated radiation therapy (IMRT). Radiation therapy will be administered after chemotherapy.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Maximum Tolerated Dose (MTD) of AZD1775 (MK-1775) When Used Concurrently With Gemcitabine and Radiation Therapy.	Probability of dose limiting toxicities was calculated for each dose (p[DLT/d]) using the Time to Event Continual Reassessment Method (TITE-CRM). The target DLT rate was 0.30. Dose level 1 (150 mg AZD1775) was determined to be the MTD and recommended phase 2 dose (RP2D).	The observation period for MTD is defined as the first 4 cycles of treatment (with a 3 week break between cycle 3 and cycle 4), for a total of 105 days in length.

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of Patients With Phosphorylation Inhibition of Greater Than 0	During the first cycle of treatment, patients underwent 2 biopsies: 3 h after treatment with gemcitabine (but before MK- 1775), and 2 hours after MK-1775. WEE1 signaling was assessed using immunohistochemistry (IHC) to measure phosphorylation of various markers including Cdk1 (Y15). Inhibition was quantified as the within subject change in the above markers between the two biopsy timepoints. Descriptive statistics of inhibition across subjects (for each marker) were calculated and reported by dose level.	First cycle of treatment
Overall Survival	Overall survival (OS) summarized by Kaplan-Meier curves and characterized by descriptive statistics such as median OS. The time frame for data collection for OS varied depending on the length of patient follow-up, which ranged from 1.8 months to 47.2 months. Patients who enrolled soon after the study opened may have been followed longer than patients who enrolled later, toward the end of the study.	Up to 48 months following treatment
Time From Date of Registration to Date of Documented Disease Progression	Time from date of registration to date of documented disease progression summarized by Kaplan-Meier method. The time frame for data collection varied depending on the length of patient follow-up, which ranged from 1.8 months to 47.2 months. Patients who enrolled soon after the study opened may have been followed longer than patients who enrolled later, toward the end of the study.	Up to 48 months following treatment

Collaborators and Investigators

• Sponsor: University of Michigan Rogel Cancer Center
• Investigators: Principal Investigator: Theodore Lawrence, M.D., Ph.D., University of Michigan Rogel Cancer Center

Publications and helpful links

General Publications

• Cuneo KC, Morgan MA, Sahai V, Schipper MJ, Parsels LA, Parsels JD, Devasia T, Al-Hawaray M, Cho CS, Nathan H, Maybaum J, Zalupski MM, Lawrence TS. Dose Escalation Trial of the Wee1 Inhibitor Adavosertib (AZD1775) in Combination With Gemcitabine and Radiation for Patients With Locally Advanced Pancreatic Cancer. J Clin Oncol. 2019 Oct 10;37(29):2643-2650. doi: 10.1200/JCO.19.00730. Epub 2019 Aug 9.

Study record dates

Study Major Dates

• Study Start: January 1, 2014
• Primary Completion (Actual): August 1, 2018
• Study Completion (Actual): August 1, 2018

Study Registration Dates

• First Submitted: January 13, 2014
• First Submitted That Met QC Criteria: January 14, 2014
• First Posted (Estimate): January 15, 2014

Study Record Updates

• Last Update Posted (Actual): February 17, 2020
• Last Update Submitted That Met QC Criteria: February 13, 2020
• Last Verified: February 1, 2020

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Neoplasms by Histologic Type; Neoplasms; Carcinoma; Neoplasms, Glandular and Epithelial; Adenocarcinoma; Physiological Effects of Drugs; Molecular Mechanisms of Pharmacological Action; Anti-Infective Agents; Antiviral Agents; Enzyme Inhibitors; Antimetabolites, Antineoplastic; Antimetabolites; Antineoplastic Agents; Immunosuppressive Agents; Immunologic Factors; Gemcitabine; Adavosertib
• Other Study ID Numbers: UMCC 2013.094; HUM00079048 (Other Identifier: University of Michigan)