A trial done to evaluate the effectiveness and safety of medications or medical devices by monitoring their effects on large groups of people.
Clinical research trials may be conducted by government health agencies such as NIH, researchers affiliated with a hospital or university medical program, independent researchers, or private industry.
Usually volunteers are recruited, although in some cases research subjects may be paid. Subjects are generally divided into two or more groups, including a control group that does not receive the experimental treatment, receives a placebo (inactive substance) instead, or receives a tried-and-true therapy for comparison purposes.
Typically, government agencies approve or disapprove new treatments based on clinical trial results. While important and highly effective in preventing obviously harmful treatments from coming to market, clinical research trials are not always perfect in discovering all side effects, particularly effects associated with long-term use and interactions between experimental drugs and other medications.
For some patients, clinical research trials represent an avenue for receiving promising new therapies that would not otherwise be available. Patients with difficult to treat or currently “incurable” diseases, such as AIDS or certain types of cancer, may want to pursue participation in clinical research trials if standard therapies are not effective. Clinical research trials are sometimes lifesaving.
The muscle that extends (straightens) the forearm. The triceps can be felt as the tense muscle in the back of the upper arm while one is doing push-ups. The triceps has three heads, or origins. Its full name is the triceps brachii.
- Trichina spiralis
is a parasitic worm that lives in the intestines and causes a serious illness known as trichinosis. The eggs usually enter the body via raw or undercooked pork, sausage or bear meat. In the intestines, the eggs hatch, mature, and migrate to other parts of the body through the bloodstream and the lymphatic system. Early […]
- Trichinella spiralis
The worm that causes trichinosis. Trichinella spiralis larvae can infest pigs and wild game, hibernating in muscle tissue within a protective cyst. Trichinosis can be correspondingly defined as a disease caused by eating raw or undercooked pork or wild game infested with the larvae of the worm Trichinella spiralis. When a human or an animal […]
Cook meat until the juices run clear or to an internal temperature of 170 degrees F (77 degrees C). Freeze pork less than 6 inches (15 cm) thick for 20 days at 5 degrees F (-15 degrees C) to kill any worms. Cook wild game meat thoroughly. (Freezing wild game meats, unlike freezing pork products, […]
A disease that is due to eating raw or undercooked pork or wild game that is infected with Trichinella spiralis larvae. Initial symptoms are abdominal discomfort, nausea, diarrhea, vomiting, fatigue, and fever. Next usually come headaches, fevers, chills, cough, eye swelling, aching joints, muscle pains, itchy skin, diarrhea, and constipation. With heavy infection, patients may […]