◉ Summary of Use during Lactation:Limited information indicates that maternal doses of methylergonovine up to 0.75 mg daily produce low levels in milk. Product labeling in the U.S. currently recommends avoiding breastfeeding for 12 hours following the last dose of methylergonovine. This warning appears to be based on unpublished adverse reactions in breastfed infants after several days of maternal methylergonovine therapy. The use of shorter courses of the drug after delivery during the colostral phase of lactation are not expected to transfer appreciable amounts of drug to the breastfed infant or risk adverse effects in the infant. The lack of infant side effects was documented in one case-control study.
Long courses of methylergonovine, especially after the milk comes in, are best avoided in mothers who wish to nurse. When they are required, withholding breast feeding for 12 hours following the last dose of methylergonovine is prudent. If adverse reactions in the breastfed infant are seen, such as tachycardia, vomiting, diarrhea or agitation, the drug should be discontinued. Some sources recommend avoiding methylergonovine altogether during breastfeeding.[1]
Although results of several imperfect studies are somewhat mixed, it appears that methylergonovine can decrease serum prolactin and possibly the amount of milk production and duration of lactation, especially when used in the immediate postpartum period. The effect seems to be related to the dosage and route of administration, with injected doses having a greater impact than oral. A short course immediately postpartum does not appear to have a detrimental effect on lactation.
◉ Effects in Breastfed Infants:According to the manufacturer, there are isolated reports of adverse effects in breast-fed infants whose mothers were receiving methylergonovine for several days. One or more of the following symptoms were observed during methylergonovine therapy and disappeared upon withdrawal of the medication: elevated blood pressure, bradycardia, tachycardia, vomiting, diarrhea, restlessness, or clonic cramps. Another case reported to the manufacturer was a breast-fed infant who presented with seizures after about 4 to 6 days of maternal methylergonovine therapy. The infant's seizures began on the second day of treatment of the mother after breastfeeding. Medications were discontinued per the mother. The infantile seizures resolved about six weeks later.[6] It is not possible to determine the causality of any of the adverse effects with the information available.
A working group of the French national medication safety agency (ANSM) reported 23 cases of infants exposed to methylergonovine via breastmilk who had a total of 44 adverse reactions. (Some of these might be the same as those reported in the previous paragraph.) The working group considered tachycardia, vomiting, diarrhea and agitation to be sufficiently well documented to add to the prescribing information.[7]
A prospective case-control study compared the outcome of infants whose mothers had taken methylergonovine postpartum 0.125 mg 2 times daily for 5 days or 3 times daily for 3 days to mothers who had taken amoxicillin which served as a control group. Of 29 mothers who had taken methylergonovine, there were no differences in neonatal health or development at follow-up at 17 months postpartum between the treatment and control groups.[8]
◉ Effects on Lactation and Breastmilk:Oral methylergonovine in a dose of 0.2 mg 3 times daily for 7 days in 10 postpartum subjects caused no difference in serum prolactin concentrations from placebo administered to 10 postpartum control women. No significant difference found in the daily milk volumes between the groups.[9]
A single intramuscular injection of methylergonovine 0.2 mg given to 4 women on day 3 postpartum caused a decrease in serum prolactin beginning 45 to 60 minutes after the dose. For 2 to 3 hours after the dose, serum prolactin levels remained about 50% lower than baseline levels.[10]
A single intramuscular injection of methylergonovine 0.2 mg was given to 14 women during the first 1.5 hours postpartum. At 80 to 90 minutes after the injection, the normal postpartum rise in serum prolactin was 56% in the women who received methylergonovine compared to a 285% in serum prolactin in women who received a placebo injection. Six treated women had no increase in serum prolactin compared to 2 of the control women.[11]
Thirty women who delivered fullterm infants received a single intramuscular dose of methylergonovine 0.2 mg after delivery, followed by oral ergotamine 1 mg 3 times daily for 6 days. Compared to 28 women who delivered fullterm infants and received no ergot derivatives, there was no difference in the milk production, as measured by weight differences before and after nursing, between the 2 groups during the first 6 days postpartum.[12]
Thirty postpartum women were given methylergonovine 0.2 mg orally 3 times daily for the first 7 days postpartum. Baseline (prior to nursing) serum prolactin was no different from those of 30 postpartum women who received no methylergonovine on days 1 and 3 postpartum. However, on day 7 postpartum, serum prolactin levels were significantly less in the treated women. Milk production was also reduced in the treated women on days 3 and 7 postpartum compared to controls.[13]
Ten women received a single intravenous dose of 0.4 mg of methylergonovine immediately postpartum were compared to 10 control mothers who received no methylergonovine; all women received a continuous infusion of oxytocin postpartum. None of the women were allowed to nurse or extract milk from their breasts or to receive hormones to suppress lactation. Serum prolactin measured during labor, immediately after administration of the drug and daily at 9 am for 5 days postpartum found no statistical differences in prolactin levels between the 2 groups.[14]
In a randomized study, 48 patients were given methylergonovine 0.125 mg orally every 8 hours for the first 7 days postpartum. Another 44 in the same hospital were not given methylergonovine. No statistical differences were found in the serum levels of prolactin at 3 days postpartum between the groups, although women with normal deliveries had higher prolactin levels than those delivered by cesarean section. At 1 month postpartum, no differences were found in the percentage of exclusive breastfeeding or in the weight gain of infants.[15]
In a prospective, randomized study, 444 postpartum mothers were given 0.125 mg of methylergonovine 3 times a day, while 436 were given placebo. Milk production among untreated women averaged 880 grams during the first 6 days, while among treated patients it was only 563 grams. After 4 weeks there were still differences in the quantity of milk produced.[16]
A prospective case-control study compared lactation in mothers had taken methylergonovine postpartum 0.125 mg 2 times daily for 5 days or 3 times daily for 3 days to mothers who had taken amoxicillin which served as a control group. The rates of exclusive breastfeeding and reports of decreased lactation were not significantly different in the two groups.[8]
Provided herein are ergoline compounds and pharmaceutical compositions thereof. In some embodiments, provided herein are methods of treatment, prevention, or amelioration of a variety of medical disorders such as, for example, migraine using the compounds and pharmaceutical compositions disclosed herein. In still other embodiments, provided herein are methods of agonizing receptors such as, for example, the 5-HT
1A
, 5-HT
1B
and 5-HT
1D
receptors without agonizing the 5-HT
2B
receptor using the compounds and pharmaceutical compositions disclosed herein. In still other embodiments, provided herein are methods of antagonizing the 5-HT
2B
adrenergic alpha
2A
and/or the alpha
2B
receptors using the compounds and pharmaceutical compositions disclosed herein. In still other embodiments, provided herein are methods of antagonizing the D2 and D3 receptor using the compounds and pharmaceutical compositions disclosed herein.
申请人:UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INCORPORATED
公开号:US10420761B2
公开(公告)日:2019-09-24
The current invention is directed to a class of compounds that inhibit the function of Thymidylate synthase. Thymidylate synthase inhibition was noted to result in inhibition of tumor cell grow and killing of tumor cells. Thymidylate synthase inhibition is, thus, useful for treatment of various types of cancers, including but not limited to, acute lymphoblatic leukemia (ALL), acute myelogenous leukemia (AML), acute promyelocytic leukemia, chronic lymphocytic leukemia (CLL), chronic myelogenous leukemia (CML), acute monocytic leukemia (AMOL), hairy cell leukemia, large cell immunoblastic lymphoma, plasmacytoma, multiple myeloma, Hodgkin's lymphoma, non-Hodgkin's lymphoma, leukemia, brain cancer, lung cancer, central nervous system (CNS) cancer, melanoma, renal cancer, prostate cancer, colon cancer, ovarian cancer and breast cancer. The compounds disclosed herein can be used alone or in combination with other cancer treatment regimens (e.g., radiation therapy and/or other chemotherapeutic agents that are administered to a subject having a tumor, cancer or neoplasia).
NOVEL ALLOSTERIC INHIBITORS OF THYMIDYLATE SYNTHASE
申请人:UNIVERSITY OF FLORIDA RESEARCH FOUNDATION INCORPORATED
公开号:US20160067240A1
公开(公告)日:2016-03-10
The current invention is directed to a class of compounds that inhibit the function of Thymidylate synthase. Thymidylate synthase inhibition was noted to result in inhibition of tumor cell grow and killing of tumor cells. Thymidylate synthase inhibition is, thus, useful for treatment of various types of cancers, including but not limited to, acute lymphoblatic leukemia (ALL), acute myelogenous leukemia (AML), acute promyelocytic leukemia, chronic lymphocytic leukemia (CLL), chronic myelogenous leukemia (CML), acute monocytic leukemia (AMOL), hairy cell leukemia, large cell immunoblastic lymphoma, plasmacytoma, multiple myeloma, Hodgkin's lymphoma, non-Hodgkin's lymphoma, leukemia, brain cancer, lung cancer, central nervous system (CNS) cancer, melanoma, renal cancer, prostate cancer, colon cancer, ovarian cancer and breast cancer. The compounds disclosed herein can be used alone or in combination with other cancer treatment regimens (e.g., radiation therapy and/or other chemotherapeutic agents that are administered to a subject having a tumor, cancer or neoplasia).
US9657020B2
申请人:——
公开号:US9657020B2
公开(公告)日:2017-05-23
1-methyl ergotamines and ergocornines
申请人:SANDOZ LTD
公开号:US03218324A1
公开(公告)日:1965-11-16
The invention comprises N1-substituted lysergic acid derivatives of formula (I) <;FORM:0811964/IV (b)/1>; (wherein R1 is a methoxy, hydroxyalkylamino, amino, mono- or di-alkylamino or 1-pyrrolidino group, or a tripeptide radical of the natural water-insoluble ergot alkaloids, R2 is a methyl, ethyl, allyl or benzyl group, and \sG is <;FORM:0811964/IV (b)/2>; the term "alkyl" meaning alkyl groups containing 2 or 3 carbon atoms) and their preparation by treating the corresponding compounds of the formula (I) in which R2 is hydrogen with an alkali metal amide in liquid ammonia and reacting the resulting alkali metal salt with a compound R2Z in which Z is a halogen atom. Preferably, the reaction is carried out between -30 DEG and -60 DEG C. using methyl or ethyl iodide. Examples describe the preparation of the 1-methyl derivatives of ergobasine, ergotamine, ergotaminine, dihydroergotamine, dihydroergocryptine, dihydroergocristine, dihydroergocornine, lysergic and isolysergic acid amide, lysergic acid ethylamide, diethylamide and pyrrolidide, and dihydrolysergic acid methyl ester and diethylamide; the 1-ethyl derivative of dihydroergocornine, and the 1-allyl and 1-benzyl derivatives of dihydroergocristine, dihydroergocornine and dihydroergocryptine. The bitartrates of 1-methyl-lysergic acid-diethylamide and pyrrolidide are also described.;FORM:0811964/IV>;FORM:0811964/IV>