Hidalgo M, Rowinsky EK The rapamycin-sensitive signal transduction pathway as a target for cancer therapy. Oncogene. 2000 Dec 27;19(56):6680-6. Review.
Janus A, Robak T, Smolewski P The mammalian target of the rapamycin (mTOR) kinase pathway: its role in tumourigenesis and targeted antitumour therapy. Cell Mol Biol Lett. 2005;10(3):479-98. Review.
Lorenz MC, Heitman J TOR mutations confer rapamycin resistance by preventing interaction with FKBP12-rapamycin. J Biol Chem. 1995 Nov 17;270(46):27531-7.
Manning BD, Tee AR, Logsdon MN, Blenis J, Cantley LC Identification of the tuberous sclerosis complex-2 tumor suppressor gene product tuberin as a target of the phosphoinositide 3-kinase/akt pathway. Mol Cell. 2002 Jul;10(1):151-62.
Vignot S, Faivre S, Aguirre D, Raymond E mTOR-targeted therapy of cancer with rapamycin derivatives. Ann Oncol. 2005 Apr;16(4):525-37. Epub 2005 Feb 22. Review.
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.
