This type of stroke is the most common. A blood clot â a clump of blood that sticks together â is usually to blame for ischemic strokes. They can also happen when arteries become narrow and clogged with plaque. Plaque is a mix of cholesterol and other fatty stuff that sticks to the walls of blood vessels.
Premarket Approval (PMA) A PMA submission is used to demonstrate to the FDA that a new or modified device is safe and effective. This standard is higher than is required for 510(k) submissions. Human use data from a formal clinical study is almost always required in addition to laboratory studies.
Depot medroxyprogesterone acetate (DMPA) is a long-acting reversible hormonal contraceptive birth control drug that is injected every three months. It is a progestin-only contraceptive. It is marketed under the brand name Depo-Provera.It is an aqueous suspension for depot injection of the pregnane 17Î±-hydroxyprogesterone-derivative progestin medroxyprogesterone acetate.It is also used for chemical castration.t is marketed under the brand name Depo-Provera. It is an aqueous suspension for depot injection of the pregnane 17Î±-hydroxyprogesterone-derivative progestin medroxyprogesterone acetate. It is also used for chemical castration.