E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Metastatic Gastric, Gastroesophageal Junction, or Distal Esophageal Adenocarcinoma |
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MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 9.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10063916 |
E.1.2 | Term | Metastatic gastric cancer |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 9.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10066354 |
E.1.2 | Term | Adenocarcinoma of the gastroesophageal junction |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To estimate the treatment effect as measured by progression free survival (PFS) of subjects receiving AMG 386 (at 2 doses) in combination with CX relative to CX/placebo |
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E.2.2 | Secondary objectives of the trial |
- To evaluate the safety and tolerability of the combination regimen of AMG 386 with CX - To estimate other measures of treatment effect (objective response rate, duration of response, overall survival, time to progression and time to response) - To evaluate the pharmacokinetics of AMG 386 when used in combination with CX - To estimate the immunogenicity as assessed by the incidence of anti-AMG 386 antibody formation - To estimate the impact of AMG 386 on cancer-related symptoms based on patient reported outcomes using the QLQ-STO22 |
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E.2.3 | Trial contains a sub-study | Yes |
E.2.3.1 | Full title, date and version of each sub-study and their related objectives |
A pharmacokinetics substudy for cisplatin and capecitabine is described in the protocol. No subjects from the EU will be enrolled in this substudy. |
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E.3 | Principal inclusion criteria |
Disease Related • Histologically or cytologically confirmed adenocarcinoma of the stomach, gastroesophageal junction or distal esophagus with metastatic disease. • Subject with prior gastrectomy (total or partial) may be allowed to participate in the study as long as they can take oral medications and meet all other inclusion/exclusion criteria. Subjects may not take crushed or dissolved capecitabine via a feeding/gastrostomy tube. • Subjects who received palliative radiotherapy for the metastatic esophageal or gastric cancer prior to study entry may be allowed to participate in the study as long as all toxicities from radiotherapy have resolved and the radiotherapy was not to the only site of known metastatic disease. • Measurable or non-measurable disease per modified RECIST (Response Evaluation Criteria in Solid Tumor) Guidelines (please refer to Appendix G). All scans and x-rays used to document measurable or non-measurable disease must be done within 28 days prior to randomization Demographic • 18 years of age or older at the time the written informed consent is obtained • Subjects of child-bearing potential and sexually active must consent to the use an accepted and effective non-hormonal method of contraception (ie, double barrier method [eg, condom plus diaphragm]) from signing the informed consent through 6 months following last administration of study drug General • Able to tolerate intravenous infusions • Able to swallow oral medication • ECOG performance status of 0 or 1 (within 14 days prior to randomization) • Subject plans to begin protocol directed therapy within 7 days of randomization Laboratory Adequate organ and hematological function as evidenced by the following laboratory studies within 14 days prior to randomization: • Hematological function, as follows: − Absolute neutrophil count (ANC) ≥ 1.5 x 109/L − Platelet count ≥ 75 x 109/L and ≤ 850 x 109/L − Hemoglobin ≥ 9 g/dL • Coagulation function, as follows: − PTT or aPTT ≤ 1.5 x ULN per institutional laboratory normal range − INR ≤ 1.5 • Renal function, as follows: − Urinary protein quantitative value of ≤ 30 mg/dl in urinalysis or ≤ 1+ on dipstick, unless quantitative protein is < 1000 mg in a 24 hour urine sample − Creatinine clearance ≥ 50 mL/min Investigators may calculate creatinine clearance (CrCl) by either Cockcroft-Gault formula or 24 hour urine creatinine clearance. (140-age) x actual body weight (kg) CrCl (mL/min) = (x 0.85 for females) 72 x serum creatinine (mg/dL) Or (140-age) x actual body weight (kg) CrCl (mL/min) = (x 0.85 for females) 0.8136 x serum creatinine (umol/L) • Hepatic function, as follows: − Total bilirubin ≤ 1.5 x ULN − SGOT (AST) and SGPT (ALT) ≤ 2.5 x ULN (≤ 5 x ULN if liver metastases are present)
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E.4 | Principal exclusion criteria |
Disease Related • Prior chemotherapy for metastatic disease (1st line) • Less than 12 months have elapsed from completion of previous adjuvant or neoadjuvant chemotherapy or chemoradiotherapy • Subjects with persistant gastric outlet obstruction, complete dysphagia or feeding jejunostomy • Radiotherapy ≤ 14 days prior to randomization. Subjects must have recovered from all radiotherapy-related toxicities • Current or prior history of central nervous system metastases • History of arterial or deep venous thromboembolism within 12 months prior to randomization • History of clinically significant bleeding within 6 months prior to randomization • Major surgical procedure within 28 days prior to randomization • Minor surgical procedure, placement of central venous access device (PICC or peripherally inserted central catheter lines) or fine needle aspiration within 3 days prior to randomization • Subjects with a history of prior malignancy, except: − Malignancy treated with curative intent and with no known active disease present for ≥ 3 years prior to enrollment (or randomization) and felt to be at low risk for recurrence by treating physician − Adequately treated non-melanomatous skin cancer or lentigo maligna without evidence of disease − Adequately treated cervical carcinoma in situ without evidence of disease − Prostatic intraepithelial neoplasia without evidence of prostate cancer • Clinically significant cardiovascular diseases within 12 months prior to randomization, including myocardial infarction, unstable angina, grade 2 or greater peripheral vascular disease, cerebrovascular accident, transient ischemic attack, congestive heart failure, or arrhythmias not controlled by outpatient medication, percutaneous transluminal coronary angioplasty/stent • Non-healing wound, ulcer (including gastrointestinal) or fracture • Ongoing or clinically significant active infection as judged by the investigator • Known hypersensitivity to bacterial proteins, or any of the drugs required in this study • Known peripheral neuropathy ≥ Grade 1 • Known dihydropyrimidine dehydrogenase deficiency • Known hypersensitivity to 5-FU/capecitabine • Known positive test for human immunodeficiency virus (HIV), hepatitis C, or hepatitis B surface antigen • Known active or chronic hepatitis Medications • Currently or previously treated with AMG 386, or other molecules that inhibits angiopoietin, or TIE-2 receptors including, but not limited to, XL-820, XL-184, or CVX-060/PF-4856884 • Treatment with immune modulators such as cyclosporine or tacrolimus within 30 days prior to randomization • Treatment with sorivudine or its chemically related analogues such as brivudine • Concurrent or prior (within 7 days prior to randomization) anticoagulation therapy, excluding aspirin and anti-platelet agents. The concurrent use of low molecular weight heparin or heparanoids or low dose warfarin (ie, ≤ 1 mg daily) for prophylaxis against thrombosis is acceptable while on study General • Any condition which in the investigator’s opinion makes the subject unsuitable for study participation • Not yet completed at least 30 days since ending other investigational device/drug trial(s), or subject is receiving other investigational treatments • Pregnant (ie, positive beta-human chorionic gonadotropin test) or is breast feeding • Previously enrolled into this study • Inability to comply with protocol and/or not available for follow-up assessments |
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E.5 End points |
E.5.1 | Primary end point(s) |
Primary: PFS: defined as time from date of randomization to date of disease progression (per the modified RECIST criteria) or death. Subjects not meeting the criteria for progression by the analysis data cutoff date will be censored at their last evaluable disease assessment date.
Secondary: • Incidence of Adverse Events (AEs) and significant laboratory changes from baseline • Objective Response Rate (ORR): the incidence of either confirmed Complete Response (CR) or confirmed Partial Response (PR) per the modified RECIST criteria. A confirmed CR requires two assessments of CR at least 28 days apart. Two assessments at least 28 days apart of either CR or PR are required for a determination of PR. Subjects who do not meet the criteria for confirmed response by the database cutoff date are considered to be non-responders • Duration of Response (DOR): (only calculated for those subjects who respond) time from first confirmed objective response to disease progression (per the modified RECIST criteria). Subjects who do not meet the criteria for progression or who die by the database cutoff date for analysis are censored at their last evaluable disease assessment date • Overall Survival (OS): time from date of randomization to date of death. Subjects still alive at the database cutoff date for analysis are censored at their last contact date • Time to Progression (TTP): time from date of randomization to date of disease progression per the modified RECIST criteria. Subjects who do not meet the criteria for progression by the database cutoff date for analysis will be censored at their last evaluable disease assessment date • Time to response: time from randomization date to date of first response for confirmed responders. Subjects with a best response of SD by the database cutoff date for analysis are censored at their last evaluable disease assessment date. Non-responders with a best response of PD will be censored at the maximum time to a first confirmed response among all responders • Pharmacokinetics parameters of AMG 386 when used in combination with CX • Incidence of anti-AMG 386 antibody formation • Change in cancer-related symptoms as assessed with the QLQ-STO22 |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | Yes |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | Yes |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 3 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 30 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | Information not present in EudraCT |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
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E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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The end of study is when all subjects have completed the treatment period or long-term follow-up (maximum 48 months from the date the last subject is randomized), whichever is later. |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | |
E.8.9.1 | In the Member State concerned months | 48 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial months | 48 |