What are Phase 3 clinical trials? Phase 3 clinical trials are large-scale studies that gather more information about safety and effectiveness by studying different populations and different dosages, using the drug in combination with other drugs, or studying the effects over a longer period of time. Phase 3 trials typically involve several hundred patients. How …
Phase 2 of clinical trials A Phase 2 clinical trial is the second phase of testing a new drug or treatment. It’s performed after the initial safety testing in Phase 1 and before the larger-scale trials conducted in Phase 3. Phase 2 trials are conducted on a small group of people, usually between 50 and …
Clinical trials are the final stage of a lengthy and rigorous process that begins in the laboratory with animal testing of new medications. Clinical trials are the final stage of a lengthy and rigorous process that begins in the laboratory with animal testing of new medications. Phase 1 is the first time a potential new …
What is IVF IVF stands for in vitro fertilization. It’s an assisted reproductive technology (ART) used to treat infertility and other fertility problems. IVF works by using a combination of medicines to grow many eggs while they are still inside your ovaries. Once mature, the eggs are removed from your body and placed in a …
Breast cancer is a disease in which malignant (cancer) cells form in the tissues of the breast. Some breast cancers are invasive, which means they have spread from where they started in the breast ducts or lobules to surrounding breast tissue. Invasive breast cancers are called infiltrating ductal carcinoma and infiltrating lobular carcinoma. There is …
How Long Does Adderall Stay in Your System? Stimulants like Adderall can have harmful effects when used for nonmedical reasons. If you’re wondering how long they stay in your system, there are a few different things to keep in mind. While Adderall itself only stays in your system for up to 3 days, its metabolites …
Adderall is a combination of two central nervous system stimulants—amphetamine and dextroamphetamine. It is used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy. Stimulants like Adderall increase the levels of dopamine, epinephrine (adrenaline), and norepinephrine in the brain. This can cause a rise in your heart rate, blood pressure, and body temperature. The amphetamines …
Prostate cancer is a cancer that develops in the prostate, a gland in the male reproductive system. Most prostate cancers are slow growing; however, there are cases of aggressive prostate cancers. The cancer cells may metastasize (spread) from the prostate to other parts of the body, particularly the bones and lymph nodes. It may initially …
PTSD is often referred to as post-traumatic stress disorder. When someone suffers from PTSD, it means that they continue to feel like they are in a traumatic situation long after the actual event has passed. This can really impact how they live their lives and how they interact with other people. It’s important to understand …
Depression is a mood disorder in which feelings of sadness, loss, anger or frustration interfere with everyday life for weeks or longer. Sadness is a normal human emotion that we all feel from time to time. It’s usually a response to a loss, rejection or other negative event. Depression is different. Depression can cause feelings …