Esophagogastric Cancer Clinical Trial
Official title:
Personalized Therapy for Esophagogastric Cancer Using Thymidylate Synthase Genetic Markers
In this study the investigators aim to: 1) confirm the objective response rate (ORR)
observed in the investigators initial study for patients with the TSER*2/*2 genotype 2)
determine whether PEMOX regimen is more worthy of future development for this patient
genotype selected population than FOLFOX based on the data indicating that pemetrexed may be
a better TS targeted agent than 5-FU.
Patients who are homozygous for the TSER*2 allele (TSER*2/*2) will be able to continue in
the study and will be randomized. Patients with other TSER genotypes will not be included
and will be considered screen fails.
The first 8 patients with the TSER*2/*2 genotype will be randomized 1:1 to receive treatment
with either PEMOX or FOLFOX (4 in each group).
Analysis of the objective response rate (ORR) in each treatment arm will occur after the
first 8 patients are enrolled. Using the proposed Bayesian design, subsequent patients will
be preferentially assigned to the "better performing" treatment arm based on continuous
real-time reassessments of ORR results.
Status | Withdrawn |
Enrollment | 0 |
Est. completion date | February 2022 |
Est. primary completion date | September 2018 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: Pre-Registration Inclusion Criteria - Histologically or cytologically confirmed unresectable or metastatic esophagogastric adenocarcinoma. - Measurable disease defined as lesions that can be accurately measured in at least one dimension (longest diameter to be recorded) as >10 mm with CT scan, as >20 mm by chest x-ray, or >10 mm with calipers by clinical exam. PET/CT scan is acceptable as a substitute for a CT scan if the CT portion of the PET/CT is of identical diagnostic quality to a diagnostic CT scan. - At least 18 years of age. - ECOG performance status < 2 - Able to understand and willing to sign an IRB approved written informed consent document (or that of legally authorized representative, if applicable). Registration Inclusion Criteria - TSER genotype *2/*2 - ECOG performance status < 2 - Normal bone marrow and organ function as defined below: - Absolute neutrophil count = 1,500 cells/mm3 - Platelets = 100,000 cells/mm3 - Total bilirubin < 1.5 x IULN - AST(SGOT)/ALT(SGPT) < 3.0 x IULN - Creatinine within normal institutional limits OR Creatinine clearance = 45 mL/min/1.73 m2 for patients with creatinine levels above institutional normal - Women of childbearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control, abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she must inform her treating physician immediately. Exclusion Criteria: Pre-Registration Exclusion Criteria - Prior therapy for this cancer. - A history of other malignancy = 5 years previous with the exception of basal cell or squamous cell carcinoma of the skin which were treated with local resection only or carcinoma in situ of the cervix. - Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements. - Known HIV-positivity on combination antiretroviral therapy because of the potential for pharmacokinetic interactions with pemetrexed and/or oxaliplatin. In addition, these patients are at increased risk of lethal infections when treated with marrow-suppressive therapy. Appropriate studies will be undertaken in patients receiving combination antiretroviral therapy when indicated. Registration Exclusion Criteria - Currently receiving any other investigational agents. - Known brain metastases. Patients with known brain metastases must be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events. - A history of allergic reactions attributed to compounds of similar chemical or biologic composition to pemetrexed, 5-FU, leucovorin or oxaliplatin, or other agents used for premedication in the study. - Pregnant and/or breastfeeding. Patient must have a negative pregnancy test within 14 days of study entry. |
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
n/a |
Lead Sponsor | Collaborator |
---|---|
Washington University School of Medicine | Gateway for Cancer Research |
Goff LW, Thakkar N, Du L, Chan E, Tan BR, Cardin DB, McLeod HL, Berlin JD, Zehnbauer B, Fournier C, Picus J, Wang-Gillam A, Lee W, Lockhart AC. Thymidylate synthase genotype-directed chemotherapy for patients with gastric and gastroesophageal junction cancers. PLoS One. 2014 Sep 18;9(9):e107424. doi: 10.1371/journal.pone.0107424. eCollection 2014. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Objective response rate (ORR) | ORR=complete response + partial response by RECIST criteria Complete Response (CR): Disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to <10 mm. Partial Response (PR): At least a 30% decrease in the sum of the diameters of target lesions, taking as reference the baseline sum diameters. |
Baseline, end of every 4th cycle, and end of treatment (estimated average of 6 months) | No |
Secondary | Overall survival (OS) | OS = The length of time from the start of treatment to time of death. | Every 3 months for up to 4 years from the date of study registration or until death, whichever occurs first | No |
Secondary | Quality of life | Quality of life will be assessed by the EORTC QLQ-C30 and the EORTC QLQ-STO22 | Baseline and Day 1 of each cycle through Cycle 5 Day 1 (approximately Day 70) | No |
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