Centers for Disease Control and Prevention (CDC) Increasing morbidity and mortality associated with abuse of methamphetamine--United States, 1991-1994. MMWR Morb Mortal Wkly Rep. 1995 Dec 1;44(47):882-6.
Harms R, Morsey B, Boyer CW, Fox HS, Sarvetnick N Methamphetamine administration targets multiple immune subsets and induces phenotypic alterations suggestive of immunosuppression. PLoS One. 2012;7(12):e49897. doi: 10.1371/journal.pone.0049897. Epub 2012 Dec 5.
Jing L, Li JX Trace amine-associated receptor 1: A promising target for the treatment of psychostimulant addiction. Eur J Pharmacol. 2015 Aug 15;761:345-52. doi: 10.1016/j.ejphar.2015.06.019. Epub 2015 Jun 16.
Marquez C, Mitchell SJ, Hare CB, John M, Klausner JD Methamphetamine use, sexual activity, patient-provider communication, and medication adherence among HIV-infected patients in care, San Francisco 2004-2006. AIDS Care. 2009 May;21(5):575-82. doi: 10.1080/09540120802385579.
Passaro RC, Pandhare J, Qian HZ, Dash C The Complex Interaction Between Methamphetamine Abuse and HIV-1 Pathogenesis. J Neuroimmune Pharmacol. 2015 Sep;10(3):477-86. doi: 10.1007/s11481-015-9604-2. Epub 2015 Apr 8.
Pei Y, Asif-Malik A, Hoener M, Canales JJ A partial trace amine-associated receptor 1 agonist exhibits properties consistent with a methamphetamine substitution treatment. Addict Biol. 2017 Sep;22(5):1246-1256. doi: 10.1111/adb.12410. Epub 2016 May 19.
Wires ES, Alvarez D, Dobrowolski C, Wang Y, Morales M, Karn J, Harvey BK Methamphetamine activates nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kappaB) and induces human immunodeficiency virus (HIV) transcription in human microglial cells. J Neurovirol. 2012 Oct;18(5):400-10. doi: 10.1007/s13365-012-0103-4. Epub 2012 May 22.
Short-term Effects of Methamphetamine Exposure on Residual Viral Transcription During Treated HIV Disease
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.
