Multicenter, Phase II Study of Chemotherapy in Combination With Trastuzumab in Patients of Pretreated, HER2 Positive, Relapse or Metastatic Carcinoma of Digestive System
Overview
- Phase
- Phase 2
- Intervention
- chemotherapy in combination with trastuzumab for arm1
- Conditions
- Targeted Therapy
- Sponsor
- Shen Lin
- Enrollment
- 100
- Locations
- 1
- Primary Endpoint
- Response Rate(RR) for each cohort in intent to treat (ITT) population
- Last Updated
- 6 years ago
Overview
Brief Summary
To seek the efficacy signals of trastuzumab in combination with chemotherapy in pretreated patients of HER2 positive, relapse or metastatic carcinoma of digestive system as response rate (RR) determined by the Investigator using RECIST 1.1, and provide evidence for phase III clinical trial.
Detailed Description
Human epidermal growth factor receptor 2, (HER2) is overexpressed /amplified in multiple carcinomas, for example, gastric cancer(GC), gastroesophageal junction adenocarcinoma(GEJA),and breast cancer.And HER2 is closely related to tumor proliferation \&metastases.About 90% Chinese esophagus cancer are squamous cell origin. The reported HER2 overexpression ranged from 5-30%, Beijing cancer hospital reported an 11% positive rate. The variety of HER2 positive rate may because of the absence of standard HER2 testing criteria. The current treatment for metastatic Esophageal squamous Cell Carcinoma (ESCC) is not satisfactory. Fluorouracil and platinum are considered as first line standard of care (SOC) with a 20-30% RR and 7-9 months overall survival (OS). In second line setting, there is no SOC in china. And the efficacy is not satisfactory. Esophageal adenocarcinoma has a higher HER2 positive rate of 14%, but no data reported of using trastuzumab in these patients in China. Biliary tract cancer (BTC), including intrahepatic/extrahepatic cholangiocarcinoma and Gallbladder cancer (GBC) is very aggressive, total 5y survival is less than 5% for unresectable patients. GBC is account for approximately 2/3 of BTC, and it's estimated the incidence in china is 52800 and the mortality is 40700 in 2015. Most patients are diagnosed in advanced stage and lose the opportunity of surgery. However, there is no SOC for unresectable BTC, gemcitabine plus platinum provided a 30% RR and 10 month OS. In second line treatment, no differences were seen between various experimental agents. The reported HER2 positive rate range from 5.1% to 57% in biliary duct cancer and 4.7% to 64% in GBC. Researchers reported her2 amplification is related to tumor stage and lymph nodes metastasis in 221 BTC patients. Another study reported a 16.6% positive rate and worse prognosis with a sample size of 230 GBC patients. Meanwhile, HER2 pathway mutation rate reached 37%. All imply that BTC may be the potential anti HER therapy population. Besides, other digestive system tumor has low HER2 positive rate (Small intestinal cancer 0.9-3%; hepatocellular carcinoma 2.4%; Pancreatic cancer 3%; etc.). However, the patient pool is large and has no SOC in second Line. Whether these HER2 + patients can gain benefit form anti- her treatment is worth investigating. In 2016 American Society of Clinical Oncology (ASCO), a study reported that using trastuzumab and pertuzumab combination, 35% metastatic colorectal cancer (CRC) and 50% BTC patients who heavily pretreated had objective response. However, china doesn't have studies for these patients. . The concurrent basket trial will explore the efficacy and safety of trastuzumab with chemotherapy in Chinese patients of pretreated, HER2 positive, relapse or metastatic carcinoma of digestive system.
Investigators
Shen Lin
Prof.
Peking University
Eligibility Criteria
Inclusion Criteria
- •Signed informed consent.
- •Male and female patients aged from 18 to 75 years
- •Histologically confirmed Colorectal cancer,Esophagus squamous cell carcinoma, biliary tract cancer, and digestive system tumor beyond CRC and GC\&GEJA with the following specifications:
- •genetic testing conformed KRAS/NRAS/BRAF all wild type for colorectal cancer
- •Detection of a carcinoma with HER2 3+ (IHC) or HER2 2+ (IHC) with amplification proven by fluorescence in situ hybridization(FISH), silver in situ hybridization（SISH） or chromogenic in situ hybridization（CISH） using gastric cancer criteria by an accredited local pathologist.
- •Relapse or metastatic diseases, at least one measurable lesion according to RECIST 1.1, anticipated survival ≥ 12 weeks.
- •ECOG Performance status 0-
- •Patients who failed at least first line systemic therapy.
- •Adequate organ function as determined by the following laboratory results:
- •Absolute neutrophil count ≥1500 cells/mm3,
Exclusion Criteria
- •Known hypersensitivity against treatment regimen.
- •Baseline left ventricular ejection fraction(LVEF) \< 50% (measured by echocardiography or MUGA).
- •Previous anti-her treatment.
- •Immune therapy, biological therapy or any participation in clinical trial in previous two weeks.
- •Surgery and not recovered in previous three weeks
- •Clinical evidence of brain metastases, or uncontrolled epilepsy.
- •Serious uncontrolled systemic intercurrent illness, e.g. infections or poorly controlled diabetes.
- •Other malignancy within the last 5 years, except for carcinoma in situ of the cervix, or basal cell carcinoma.
- •Clinically significant active coronary heart disease, cardiomyopathy or congestive heart failure, New York Heart Association(NYHA) III-IV; poorly controlled hypertension (systolic BP \> 180 mmHg or diastolic BP \> 100 mmHg); clinically significant valvular heart disease; unstable angina pectoris, myocardial infarction or high risk uncontrollable arrhythmias.
- •Long term or high dose corticosteroids administration ( inhalation or short term oral administration for antiemesis and orexigenic is allowed)
Arms & Interventions
GI tumor beyond CRC, ESCC, BTC,GC&GEJA
HER2 positive GI tumor beyond CRC, ESCC, BTC,GC\&GEJA
Intervention: chemotherapy in combination with trastuzumab for arm1
Esophageal squamous cell carcinoma
HER2 positive Esophageal squamous cell carcinoma
Intervention: chemotherapy in combination with trastuzumab for arm2
Biliary tract cancer
HER2 positive Biliary tract cancer
Intervention: chemotherapy in combination with trastuzumab for arm3
Colorectal cancer
HER2 positive and RAS/BRAF wild type colorectal cancer
Intervention: chemotherapy in combination with trastuzumab for arm4
Outcomes
Primary Outcomes
Response Rate(RR) for each cohort in intent to treat (ITT) population
Time Frame: baseline up to death or disease progression,which ever occurs first(up to approximately 8.5 years)
The percentage of patients, whose tumor volume in first time shrink to pre-defined criteria, including CR and PR
Secondary Outcomes
- Disease control rate(baseline up to death or disease progression,which ever occurs first(up to approximately 8.5 years))
- Progression free survival(baseline up to death or disease progression,which ever occurs first(up to approximately 8.5 years))
- Overall survival(baseline up to death or disease progression,which ever occurs first(up to approximately 8.5 years))
- time to response(6-30 weeks)
- time to progression(TTP)(6-30 weeks)
- Quality of Life by Eastern Cooperative Oncology Group(ECOG)performance status( PS) scoring criteria(Day 1 of each 21-day treatment cycle up to 28 days and 60-90 days after Day 1 of last treatment cycle(up to approximately 8.5 years))
- best overall response(10-30 weeks)
- duration of response(6-30 weeks)
- Number of participants with treatment-related adverse events as assessed by CTCAE v4.03(baseline up to approximately 8.5 years)