Abstract:
A method for stimulating active transporters of metabolic waste, in particular urea and creatinine, in the GI tract of a mammal, comprising the step of administering an effective amount of a concentrator activation agent to the intestinal tract of the mammal, is disclosed. Methods for concentrating metabolic wastes in the intestinal tract to be above those achieved through passive diffusion alone, are also disclosed.
Abstract:
Particles having a plurality of crystalline domains are described. Each crystalline domain is oriented differently than any of the adjacent domains and comprises a drug substance. A plurality of interfacial regions surround the crystalline domains, each interfacial region comprising at least one stabilizer. A process used to prepare the particles of the present invention is also described. The particles of the present invention exhibit relatively fast dissolution times as compared to particles prepared by processes described in the prior art.
Abstract:
A method for producing micron-sized or submicron-sized drugs is disclosed, which comprises preparing a template emulsion comprising water and a templating agent; preparing a drug-containing mixture comprising a drug substance; and combining the template emulsion with the drug-containing mixture to form a template emulsion loaded with drug particles. Drug particles prepared from this process are also disclosed. The resulting drug particles demonstrate faster dissolution rates and enhanced bioavailability as compared to unprocessed drug particles and particles prepared using other processes.
Abstract:
This invention relates to medical uses of radiopharmaceuticals. Specifically, the present invention relates to the use of radiopharmaceuticals to treat osteomyelitis. The present invention provides improved system and methods of for the direct delivery of radiopharmaceuticals to the site of osteomyelitis.
Abstract:
The dissolution rate of a therapeutically active compound in an aqueous liquid is increased by: i) preparing an essentially dry mixture consisting essentially of a) a therapeutically active compound and b) a cellulose ether, ii) compacting the resulting mixture under pressure and iii) comminuting the compacted mixture.
Abstract:
225 Ac complexes comprising a functionalized polyazamacrocyclic chelant compound of the formula I hereinbelow: (I) wherein T is (II), G is independently hydrogen or (III); each Q is independently hydrogen, (CHR 5 ) p CO 2 R or (CHR 5 ) p PO 3 R 6 R 7 or (IV); Q 1 is hydrogen, (CHR 5 ) w CO 2 R or (CHR 5 ) w PO 3 R 6 R 7 ; each R is independently hydrogen, benzyl or C 1 -C 4 alkyl; R 6 and R 7 are independently H, C 1 -C 6 alkyl or (C 1 -C 2 ) phenyl; each R 5 is independently hydrogen; C 1 -C 4 alkyl or (C 1 -C 2 alkyl) phenyl; with the proviso that at least two of the sum of Q and Q 1 must be other than hydrogen; A is CH, N, C-Br, C-C1, C-SO 3 H, C-OR 8 , C-OR 9 N + -R 10 X - , OR (V); Z and Z 1 independently are CH, N, C-SO 3 H, N + -R 10 X - , C-CH 2 - OR 8 or C-C(0) R 11 ; R 8 is H, C 1 -C 5 alkyl, benzyl, or benzyl substituted with at least one R 12 ; R 9 is C 1 -C 16 alkylamino; R 10 is C 1 -C 16 alkyl, benzyl, or benzyl substituted with at least one R 12 ; R 11 is O- (C 1 -C 3 alkyl), OH or NHR 13 ; R 12 is H, NO 2 , NH 2 , isothiocyanato, semicarbazido, thiosemicarbazido, maleimido, bromoacetamido or carboxyl; R 13 is C 1 -C 5 alkyl; X and Y are each independently hydrogen or may be taken with an adjacent X and Y to form an additional carbon-carbon bond; n is 0 or 1; m is an integer from 0 to 10 inclusive; p is 1 or 2; r is O or 1; w is O or 1; with the proviso that n is only 1 when X and/or Y form an additional carbon-carbon bond, and the sum of r and w is 0 or 1; L is a linker/spacer group covalently bonded to, and replaces one hydrogen atom of one of the carbon atoms to which it is joined, said linker/spacer group being represented by the formula (VI) wherein; s is an integer of 0 or 1; t is an integer of 0 to 20 inclusive; R 1 is H or an electrophilic or nucleophilic moiety which allows for covalent attachment to a biological carrier, or synthetic linker which can be attached to a biological carrier, or precursor thereof; and Cys represents a cyclic aliphatic moiety, or aromatic moiety, aliphatic heterocyclic moiety, or aromatic heterocyclic moiety, each of said moieties optionally substituted with one or more groups which do not interfere with binding to a biological carrier; with the proviso that when R 1 is H, the linkage to the biological carrier is through one of Q or Q 1 ; and with the proviso that when R 1 is other than H, at least one of Q and Q 1 must be ((CHR 5 ) p PO 3 R 6 R 7 ; and with further proviso that when Q is CHR 5 ) p CO 2 R, Q 1 is (CHR 5 ) w CO 2 R, R is H, R 5 is H, and R 1 is H, then the sum of m, n, p, r, s, t, and w is greater than 1; or pharmaceutically acceptable salts thereof; complexed with 225 AC.
Abstract:
A method to measure compliance with a pharmaceutical regimen, by the steps of: (a) ingesting a dose of a medication into the gastrointestinal tract of a person, the dose of medication comprising a drug formulation and a permanent magnet; (b) as a result of the ingestion of step (a), detecting passage of the permanent magnet past at least two magnetic field sensors positioned apart from each other and adjacent to the gastrointestinal tract; and (c) measuring compliance with the pharmaceutical regimen by way of the detection of step (b). And, apparatus useful to measure compliance with a pharmaceutical regimen by detecting ingestion of a dose of medication comprising a drug formulation and a permanent magnet, the apparatus including at least two magnetic field sensors positioned apart from each other on a necklace, each magnetic field sensor being in electronic communication with a microprocessor for receiving signals from the magnetic field sensors to determine the passage of a permanent magnet between the magnetic field sensors.
Abstract:
A device useful for oral drug delivery device consisting of: (a) a capsule, tablet or pill designed to disperse in the gastrointestinal system; (b) an RFID tag positioned in the capsule, tablet or pill, the RFID tag comprising an antenna; (c) an object selected from the group consisting of a magnet, a ferromagnetic object, a ferrite object and an electromagnetic shielding object positioned within, over or adjacent the antenna of the RFID tag to alter the antenna characteristics of the RFID tag so that if the RFID tag is interrogated before the capsule, tablet or pill disperses in the gastrointestinal system, the response of the RFID tag is sufficiently altered or attenuated to determine that the capsule, tablet or pill has not dispersed in the gastrointestinal system and so that if the RFID tag is interrogated after the capsule, tablet or pill has dispersed in the gastrointestinal system, the object separates from the RFID tag so that the response of the RFID tag is sufficiently detectable to determine that the capsule, tablet or pill has dispersed in the gastrointestinal system. Alternatively, a switch can be used to signal ingestion of the device, and change the response of the device. In another embodiment, the instant invention is a device useful for oral drug delivery, consisting of: (a) a capsule, tablet or pill designed to disperse in the gastrointestinal system; (b) a first non-anti-collision RFID tag positioned in the capsule; (c) a second non-anti-collision RFID tag positioned in the capsule, so that if the RFID tags are interrogated by an RFID reader before the capsule, tablet or pill disperses in the gastrointestinal system, the response of the RFID tags collide and so that after the dispersible material of the capsule has dispersed in the gastrointestinal system thereby allowing the first and second non-anti-collision tags to separate from each other, then the response of the RFID tags is sufficiently different from each other to determine that the capsule has dispersed in the gastrointestinal system.
Abstract:
The present invention is a method for preparing micron-sized or submicron-sized drug particles comprising contacting a solution comprising a poorly water soluble drug substance and at least one freezable organic solvent with a cold surface so as to freeze the solution; and removing the organic solvent. The resulting particles are also disclosed, as are several embodiments of an apparatus that can be used in performing the method of the present invention.
Abstract:
A method for achieving hemolymphopoietic chimerism is disclosed. The method involves the steps of administering to a recipient a bone seeking radiopharmaceutical; transplanting bone marrow-derived cells into the recipient; and transiently suppressing lymphocyte response so as to induce hemolymphopoietic chimerism. The method is useful for decreasing rejection of transplanted organs, tissues or cells and for treating autoimmune diseases. The present invention has the advantage of inducing hemolymphopoietic chimerism without the need for external radiation or harsh cytotoxic drugs. The present invention has the additional advantage of significantly prolonging tolerance to an organ, cell, or tissue transplant.