Protocol No.UW19029
Principal InvestigatorUboha, Nataliya
PhaseII
Age GroupAdult
ClinicalTrials.GovNCT04150640 (Click to jump to clinicaltrials.gov)
Management Group(s) Gastrointestinal; UWCCC 1 South Park; _External Institution(s)

Title
Phase 2 Trial of 5-Fluorouracil, Oxaliplatin, Liposomal Irinotecan and Immunotherapy (plus Trastuzumab for HER2-positive disease) During 1st Line Treatment of Advanced Esophageal and Gastric Adenocarcinoma

Description
This is an open label, phase II, multi-site trial evaluating the efficacy and safety of the combination of 5-FU, oxaliplatin and nal-IRI (plus trastuzumab for HER2-positive tumors) as first-line therapy for participants with advanced Esophageal and Gastric Adenocarcinoma (EGA). Participants in Cohort 1 will receive 5-FU, oxaliplatin and nal-IRI. Participants in Cohort 2 will receive trastuzumab in addition to 5-FU, oxaliplatin and nal-IRI. Chemotherapy doses will be the same for both cohorts and will follow the same dose modifications for toxicities. Nal-IRI will be administered first. 5-FU and Oxaliplatin and trastuzumab will be administered after nal-IRA as per institutional standards when similar regimens (such as FOLFIRINOX) are administered.
Cohort 1 (HER2-negative tumors): Initially, 13 evaluable participants will be accrued to Cohort 1. If at most 5 objective responses are observed among the 13 subjects, then the study will be terminated early due to an unacceptably low response rate. Otherwise, an additional 15 evaluable participants will be enrolled in the second stage for a total of 28 evaluable subjects.
Cohort 2 (HER2-positive tumors): A total of 6 subjects will be enrolled to evaluate the safety and tolerability of the proposed 5-Fluorouracil, Oxaliplatin and liposomal Irinotecan combination in HER2-positive subjects.

Objective
Primary Outcome Measures:



    Cohort 1: Objective Response Rate (ORR) [ Time Frame: up to 1 year ]


      ORR will be calculated by combining the number of participants who achieve complete response and partial response per RECIST 1.1 criteria, from the start of treatment until disease progression/recurrence (taking as reference for progressive disease the smallest measurements recorded since the start of treatment). An ORR of 40% or less for proposed combination of 5-Fluorouracil, Oxaliplatin and nal-IRI during 1st line treatment of advanced esophageal and gastric adenocarcinoma in HER2-negative subjects will be considered as unacceptably low. The number and frequencies of objectives responses will be summarized in tabular format. The ORR will be reported along with the corresponding one-sided 90% confidence intervals.


    Cohort 2: Incidence of Adverse Events [ Time Frame: up to 1 year ]


      The primary objective of cohort 2 (HER2-positive EGA) is to evaluate safety and tolerability of the studied drug combination. Toxicities and adverse events will be summarized by type and severity in tabular format.


Secondary Outcome Measures:


    Progression Free Survival (PFS) [ Time Frame: up to 2 years ]


      PFS will be defined from the date study enrollment to the date of progression event or death. If a participant does not experience a progression event at the end of the follow-up period, then the PFS will be censored at the last assessment date. PFS will be analyzed using the Kaplan-Meier method. Median PFS will be reported along with the corresponding 90% confidence interval which will be constructed using the nonparametric Brookmeyer-Crooley method.


    Disease Control Rate (DCR) [ Time Frame: up to 1 year ]


      The DCR is the proportion of all participants with stable disease (SD) for 8 weeks, or partial response (PR), or complete response (CR) according to RECIST 1.1, from the start of treatment until disease progression/recurrence (taking as reference for progressive disease the smallest measurements recorded since the start of treatment).DCR will be reported along with the corresponding 90% confidence intervals which will be constructed using the Wilson score method.


    Progression Free Survival at 6 months [ Time Frame: up to 6 months ]


      PFS will be defined from the date study enrollment to the date of progression event or death. If a participant does not experience a progression event at the end of the follow-up period, then the PFS will be censored at the last assessment date. PFS will be analyzed using the Kaplan-Meier method. Median PFS will be reported along with the corresponding 90% confidence interval which will be constructed using the nonparametric Brookmeyer-Crooley method.


    Progression Free Survival at 12 months [ Time Frame: up to 1 year ]


      PFS will be defined from the date study enrollment to the date of progression event or death. If a participant does not experience a progression event at the end of the follow-up period, then the PFS will be censored at the last assessment date. PFS will be analyzed using the Kaplan-Meier method. Median PFS will be reported along with the corresponding 90% confidence interval which will be constructed using the nonparametric Brookmeyer-Crooley method.


    Cohort 1: Incidence of Adverse Events [ Time Frame: up to 1 year ]


      Toxicities and adverse events will be summarized in tabular format, stratified by type and severity


    Cohort 2: Overall Response Rate [ Time Frame: up to 1 year ]


      ORR will be calculated by combining the number of participants who achieve complete response and partial response per RECIST 1.1 criteria, from the start of treatment until disease progression/recurrence (taking as reference for progressive disease the smallest measurements recorded since the start of treatment).

Treatment Experimental: Cohort 1: HER2 Negative
Participants in Cohort 1 (HER2-negative) will be treated with nal-IRI (50 mg/m^2 - intravenously over 90 min), 5-FU (2400 mg/m^2 over 46 hrs), and oxaliplatin (60 mg/m^2). Each cycle is 28 days. Participants will receive treatments on day 1 and 15 of each cycle.

Experimental: Cohort 2: HER2 Positive
Participants in Cohort 2 (HER2-positive)will be treated with nal-IRI (50 mg/m^2 - intravenously over 90 min), trastuzumab (6 mg/kg C1D1, then 4 mg/kg on each subsequent treatment days), 5-FU (2400 mg/m^2 over 46 hrs), and oxaliplatin (60 mg/m^2). Each cycle is 28 days. Participants will receive treatments on day 1 and 15 of each cycle.

Key Eligibility Inclusion Criteria:



    Written informed consent and HIPAA authorization for release of personal health information.

    Eastern Cooperative Oncology Group (ECOG) Performance Status of 0-2.

    Histological or cytological confirmed locally advanced or metastatic EGA. Known HER2 status prior to treatment initiation required.

    Measurable disease according to RECIST v1.1.

    No prior lines of systemic therapy for advanced disease.

    Participants who had received neoadjuvant or adjuvant therapy or definitive chemoradiation will be allowed to participate if recurrence occurred 6 months or longer from the completion of all prior treatments.

    Demonstrate adequate organ function as defined below; all screening labs to be obtained within 14 days prior to registration


      Absolute Neutrophil Count (ANC) greater than or equal to 1,500 /μl without the use of hematopoietic growth factors

      Hemoglobin (Hgb) greater than or equal to 8 g/dL (blood transfusions are permitted for participants with hemoglobin levels below 8 g/dL)

      Platelets greater than or equal to 100,000 /μl

      Serum creatinine greater than or equal to 1.5 X upper limit of normal (ULN) OR Measured or calculated creatinine clearance (GFR can also be used in place of creatinine or CrCl). CrCl calculation using the Cockcroft-Gault formula. greater than or equal to 50 mL/min for participants with creatinine levels > 1.5 X institutional ULN

      Bilirubin within normal range for the institution (biliary drainage is allowed for biliary obstruction)

      Aspartate aminotransferase (AST) less than or equal to 2.5 X ULN OR less than or equal to 5 X ULN for subjects with liver metastases

      Alanine aminotransferase (ALT) less than or equal to 2.5 X ULN OR less than or equal to 5 X ULN for subjects with liver metastases

      Albumin >3.0 g/dL

      International Normalized Ratio (INR) or Prothrombin Time (PT) less than or equal to1.5 X ULN unless subject is receiving anticoagulant therapy as long as PT or PTT is within therapeutic range of intended use of anticoagulants

      Activated Partial Thromboplastin Time (aPTT) less than or equal to 1.5 X ULN unless subject is receiving anticoagulant therapy as long as PT or PTT is within therapeutic range of intended use of anticoagulants


    Women of childbearing potential should have a negative urine or serum pregnancy test within 14 days of study registration. NOTE: Women are considered of child bearing potential unless they are surgically sterile (have undergone a hysterectomy, bilateral tubal ligation, or bilateral oophorectomy) or they are naturally postmenopausal for at least 12 consecutive months

    Women of childbearing potential and males must be willing to abstain from heterosexual activity or to use a form of effective method of contraception from the time of informed consent until 30 days after treatment discontinuation.

    As determined by the enrolling physician or protocol designee, ability of the subject to understand and comply with study procedures for the entire length of the study.

Applicable Disease Sites
Esophagus; Stomach

Participating Institutions
Gundersen Health System; UW Health 1 S. Park Medical Center; UW Health Eastpark Medical Center; UW Health University Hospital; Wisconsin Medical College