Grillo F, Fassan M, Sarocchi F, Fiocca R, Mastracci L HER2 heterogeneity in gastric/gastroesophageal cancers: From benchside to practice. World J Gastroenterol. 2016 Jul 14;22(26):5879-87. doi: 10.3748/wjg.v22.i26.5879.
Laughner E, Taghavi P, Chiles K, Mahon PC, Semenza GL HER2 (neu) signaling increases the rate of hypoxia-inducible factor 1alpha (HIF-1alpha) synthesis: novel mechanism for HIF-1-mediated vascular endothelial growth factor expression. Mol Cell Biol. 2001 Jun;21(12):3995-4004. doi: 10.1128/MCB.21.12.3995-4004.2001.
Liu K, Chen H, You Q, Shi H, Wang Z The siRNA cocktail targeting VEGF and HER2 inhibition on the proliferation and induced apoptosis of gastric cancer cell. Mol Cell Biochem. 2014 Jan;386(1-2):117-24. doi: 10.1007/s11010-013-1850-0. Epub 2013 Oct 26.
Pohl H, Welch HG The role of overdiagnosis and reclassification in the marked increase of esophageal adenocarcinoma incidence. J Natl Cancer Inst. 2005 Jan 19;97(2):142-6. doi: 10.1093/jnci/dji024.
Singh R, Kim WJ, Kim PH, Hong HJ Combined blockade of HER2 and VEGF exerts greater growth inhibition of HER2-overexpressing gastric cancer xenografts than individual blockade. Exp Mol Med. 2013 Nov 1;45(11):e52. doi: 10.1038/emm.2013.111.
Tabernero J, Hoff PM, Shen L, Ohtsu A, Shah MA, Cheng K, Song C, Wu H, Eng-Wong J, Kim K, Kang YK Pertuzumab plus trastuzumab and chemotherapy for HER2-positive metastatic gastric or gastro-oesophageal junction cancer (JACOB): final analysis of a double-blind, randomised, placebo-controlled phase 3 study. Lancet Oncol. 2018 Oct;19(10):1372-1384. doi: 10.1016/S1470-2045(18)30481-9. Epub 2018 Sep 11.
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.