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The severity of adverse effects to a corticorelin injection appear to be dose-dependent. Dosages above 1 mcg/kg are not recommended. While few adverse effects have been observed at the 1 mcg/kg or 100 mcg dose, higher doses have been associated with transient tachycardia, decreased blood pressure, loss of consciousness, and asystole (see ADVERSE REACTIONS). These symptoms can be substantially reduced by administering the drug as a 30-second intravenous infusion instead of a bolus injection. At a dose of 200 mcg corticorelin, 4 of 60 volunteers and patients with disturbances of the hypothalamic-pituitary-adrenal (HPA) axis were reported to have had decreased blood pressures. One patient had a severe hypotensive reaction with asystole. Three other patients had an “absence-like” loss of consciousness lasting approximately 5 minutes. In subsequent investigations by the same researchers over a 3-year period using 100 mcg of corticorelin, one patient in approximately 150 to 200 experienced a severe drop in blood pressure and loss of sinus rhythm after receiving 55 mcg of corticorelin, which may have been due to interaction with heparin (see PRECAUTIONS: DRUG INTERACTIONS).
Hypersensitivity reactions have been reported in patients receiving ACTHREL. Reactions included urticaria, flushing of the face, neck and upper chest; dyspnea, wheezing, urticaria and angioedema (involving tongue, lip and facial swelling). [see ADVERSE REACTIONS]. Should a hypersensitivity reaction occur, discontinue ACTHREL, monitor and treat if indicated.
Carcinogenesis, Mutagenesis, Impairment Of Fertility
Animal studies have not been conducted with corticorelin to evaluate carcinogenic potential, mutagenicity, or effect on fertility.
Pregnancy Category C
Animal reproduction studies have not been conducted with corticorelin. It is also not known whether corticorelin can cause fetal harm when administered to a pregnant woman or can affect reproductive capacity. ACTHREL® should be given to a pregnant woman only if clearly needed.
It is not known whether corticorelin is secreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when ACTHREL® is administered to a nursing woman.
Only a few tests have been performed on children. Dosages were 1 mcg/kg body weight. Patient studies have involved only children with multiple hypothalamic and/or pituitary hormone deficiencies, or tumors. Only two studies with normal pediatric subjects have been conducted. No differences in response to the corticorelin test have been reported in the children studied.
Last reviewed on RxList: 9/18/2015
This monograph has been modified to include the generic and brand name in many instances.
Additional Acthrel Information
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