摘要:
There are prepared compounds corresponding to the general formula ##STR1## in which R.sup.1 is a hydrogen atom, a C.sub.2 to C.sub.6 -alkanoyl group, a C.sub.3 to C.sub.6 -alkenoyl group, a C.sub.3 to C.sub.6 -cycloalkyl carbonyl group, a benzoyl group, an alkoxybenzoyl group, a nicotinoyl group, a thienyl carbonyl group, a furyl carbonyl group, a phenylacetyl group or a C.sub.1 to C.sub.4 -alkoxyphenyl acetyl group and R.sup.2 represents a phenyl, naphthyl or pyridyl group or such group substituted by the groups R.sup.3 and R.sup.4, the groups R.sup.3 and R.sup.4, which may be the same or different, each representing hydrogen, hydroxyl, fluorine, chlorine, bromine, a nitro group, a trifluoromethyl group, a C.sub.1 to C.sub.6 -alkyl group, a C.sub.1 to C.sub.6 -alkoxy group, a C.sub.1 to C.sub.6 -alkyl thio group, a C.sub.1 to C.sub.6 -alkyl sulphonyl group, a C.sub.2 to C.sub.6 -alkanoyl group, an amino group, an acylamino group or an acyloxy group in which the acyl is of the type defined in respect to R.sup.1, and their salts. The compounds are pharmacodynamically active.
摘要:
A method for obtaining the production of a fertilizable oocyte within a program of assisted reproduction techniques comprising normal follicular growth and development to proceed in the absence of stimulation by an exogenous gonadotropin, followed by administering an amount of an LHRH antagonist in a dosage regimen that prevents a premature LH surge while maintaining FSH secretion at a natural level and individual estrogen development is not affected.
摘要:
A method of treating infertility disorders by 1) administering an LH-RH antagonist, preferably Cetrorelix, in amounts to selectively suppress endogenous LH but not FSH secretion and 2) inducing follicle growth by administration of exogenous gonadotropin. The selective suppression OF LH allows FSH secretion to be at natural levelS thereby not affecting individual estrogen development. The LH-RH antagonist can be given as a single or dual subcutaneous dose in the range of 1 mg to 10 mg, preferably 2 mg-6 mg. In multiple dosing-posology, LH-RH antagonist can be administered subcutaneously in an amount in the range of 0.1 to 0.5 mg of LH-RH antagonist/day. LH-RH antagonist is applied starting cycle day 1 to 10, preferably on day 4 to 8, and ovulation can be induced between day 9 and 20 of the menstruation cycle by administering rec. LH, native LH-RH, LH-RH agonist or by HCG. In addition rec. LH, native LH-RH or LH-RH agonist can be given to avoid hyperstimulation syndrome and native LH-RH or a LH-RH agonist can be administered to avoid luteal phase stimulation by neutralizing the negative effects of HCG.
摘要:
A regime for therapeutic management of a benign prostatic hyperplasia and prostatic cancer employs Cetrorelix alone or in combination with .alpha.-reductase inhibitors or .alpha.-receptor blocking agents. The regimen reduces the volume of the prostate and avoids the side effects associated with testosterone levels being in a castration range Cetrorelix is administered at dosages between 0,5 mg/day and 20 mg/week or about 0.014 mg/kg body weight per day to 0,30 mg/kg body weight per week or at levels of about 25 to 120 mg of Cetrorelix per month or 0.376 mg kg to 1.71 mg/kg per month Cetrorelix can be administered with .alpha.-reductase inhibitors or .alpha.-receptor blocking agents.
摘要:
In this invention, a release-delaying system is to be developed for LHRH antagonists, in particular for cetrorelix, which allows the active compound to be released in a controlled manner over several weeks by complexation with suitable biophilic carriers.The acidic polyamino acids polyglutamic acid and polyaspartic acid were selected for complexation with cetrorelix. The cetrorelix polyamino acid complexes are prepared from aqueous solutions by combination of the solutions and precipitation of the complexes, which are subsequently centrifuged off and dried over P.sub.2 O.sub.5 in vacuo. If complexes having a defined composition are to be obtained, lyophilization proves to be a suitable method. The cetrorelix-carboxylic acid complexes were also prepared from the aqueous solutions.In the random liberation system, the acidic polyamino acids poly-Glu and poly-Asp showed good release-delaying properties as a function of the hydrophobicity and the molecular mass of the polyamino acid.In animal experiments, it was possible to confirm the activity of the cetrorelix-polyamino acid complexes as a depot system in principle. It is thus possible by complexation of cetrorelix with polyamino acids to achieve testosterone suppression in male rats over 600 hours. The release of active compound here can be controlled by the nature and the molecular mass of the polymers.
摘要:
A regime for therapeutic management of a benign prostatic hyperplasia and prostatic cancer employs Cetrorelix alone or in combination with .alpha.-reductase inhibitors or .alpha.-receptor blocking agents. The regimen reduces the volume of the prostate and avoids the side effects associated with testosterone levels being in a castration range. Cetrorelix is administered at dosages between 0,5 mg/day and 20 mg/week or about 0.014 mg/kg body weight per day to 0,30 mg/kg body weight per week or at levels of about 25 to 120 mg of Cetrorelix per month or 0.376 mg/kg to 1.71 mg/kg per month. Cetrorelix can be administered with .alpha.-reductase inhibitors or .alpha.-receptor blocking agents.
摘要:
Described are LHRH-antagonistic and bombesin-antagonistic nona- and decapeptides suitable for use in the preparation of a drug for the treatment of AIDS and ARC as well as for use in the preparation of an immunostimulation drug.
摘要:
6-amino carboxylic acid derivatives having antiasthmatic and antiallergic properties which can be used for the preparation of medicaments. The compounds have the formula: ##STR1## wherein R.sub.1 and R.sub.2 represent hydrogen, a straight-chain or branched alkyl radical with 1-6 carbon atoms, benzyl or phenylethyl, R.sub.3 represents hydrogen, a straight-chain or branched alkyl radical with 1-6 carbon atoms or benzyl, X represents hydrogen, halogen, C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -alkoxy, Y.sub.1 and Y.sub.2 represent hydrogen, halogen, C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -alkoxy, where m, n and o can assume the values from 0-4.