Sickle Cell Patents (Class 514/815)
  • Patent number: 6946457
    Abstract: This invention provides a method of treating a subject afflicted with sickle cell disease which comprises administering to the subject an amount of an antiviral agent effective to inhibit sickling of a cell in the subject, so as to thereby treat the subject afflicted with sickle cell disease. This invention also provides a method of inhibiting polymerization of hemoglobin which comprises contacting the hemoglobin with an amount of an antiviral agent effective to inhibit polymerization of the hemoglobin, so as to thereby inhibit polymerization of the hemoglobin. This invention further provides a method of inhibiting sickling of a cell which comprises contacting the cell with an amount of an antiviral agent effective to inhibit polymerization of hemoglobin in the cell, so as to thereby inhibit sickling of the cell.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: September 20, 2005
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Robert H. DeBellis, Bernard F. Erlanger
  • Patent number: 6919374
    Abstract: It has now been found that N-L-alpha-aspartyl-L-phenylalanine 1-methyl ester (APM) lowers whole blood viscosity in patient, including those suffering from sickle cell disease and plasma cell dyscrasias. Upon in vivo APM treatment patients experienced a significant lowering of whole blood viscosity. In vitro addition of APM to patients samples having elevated whole blood viscosity resulted in reduced viscosity over time. These in vivo and in vivo results identify APM as a therapeutic agent for molecular diseases which lead to elevated whole blood viscosity. A method by which APM treatment can be monitored is also disclosed.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: July 19, 2005
    Assignee: Oklahoma Medical Research Foundation
    Inventor: Carl V. Manion
  • Patent number: 6635631
    Abstract: The present invention is directed to complexes comprising iron in the ferric state and a hydroxypyrone. The present invention is also directed to methods of making such complexes and to the use of such complexes in the treatment and prevention of iron deficiency disorders including iron deficiency anaemia.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: October 21, 2003
    Assignee: Vitra Pharmaceuticals, Ltd.
    Inventors: Michael Arthur Stockham, Robert Charles Hider
  • Patent number: 6339080
    Abstract: The present invention is directed to complexes comprising iron in the ferric state and a hydroxypyrone. The present invention is also directed to methods of making such complexes and to the use of the complexes in the treatment and prevention of iron deficiency disorders including iron deficiency anaemia.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: January 15, 2002
    Assignee: Vitra Pharmaceuticals Ltd.
    Inventors: Michael Arthur Stockham, Robert Charles Hider
  • Patent number: 6087398
    Abstract: The present invention provides a method of treating sickle cell anemia comprising the step of administering to an individual in need of said treatment a therapeutically acceptable dose of reducing agent. In yet another embodiment of the present invention, there is provided a method of pharmacologically correcting a post-translational modification of the .beta.-actin protein in sickled erythrocytes, comprising the step of contacting said sickled erythrocytes with a pharmacologically effective dose of a reducing agent. In still yet another embodiment of the present invention, there is provided a method of identifying a drug for use in treating sickle cell anemia. Any drug which hastens the HDSS Core Skeleton dissociation rate is tested by the in vitro ternary complex dissociation assay to test whether its effect is on HDSS beta-actin. Furthermore, drugs can be tested by the oxygenation-deoxygenation cycling assay for its ability to block ISC formation in vitro.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: July 11, 2000
    Assignee: South Alabama Medical Science Foundation
    Inventor: Steven R. Goodman
  • Patent number: 6083984
    Abstract: Two new forms of prodrug for phenylacetate, of even congeners of phenylalkanoic acid and phenylalkenoic acids, which are the phenylalkanoic or phenylalkenoic esters of glycerol, or the ethyl esters of phenylalkanoic acid or phenylalkenoic acids. These forms of the drugs provide a convenient dosage form of the drugs. The prodrugs of the invention are useful to treat patients with diseases of nitrogen accumulation, patients with certain .beta.-hemoglobinopathies, anemia, and cancer.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: July 4, 2000
    Assignee: Brusilow Enterprises LLC
    Inventor: Saul W. Brusilow
  • Patent number: 6060510
    Abstract: Two new forms of prodrug for phenylacetate, of even congeners of phenylalkanoic acid and phenylalkenoic acids, which are the phenylalkanoic or phenylalkenoic esters of glycerol, or the ethyl esters of phenylalkanoic acid or phenylalkenoic acids. These forms of the drugs provide a convenient dosage form of the drugs. The prodrugs of the invention are useful to treat patients with diseases of nitrogen accumulation, patients with certain .beta.-hemoglobinopathies, anemia, and cancer.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: May 9, 2000
    Assignee: Brusilow Enterprises LLC
    Inventor: Saul W. Brusilow
  • Patent number: 5968979
    Abstract: Two new forms of prodrug for phenylacetate, of even congeners of phenylalkanoic acid and phenylalkenoic acids, which are the phenylalkanoic or phenylalkenoic esters of glycerol, or the ethyl esters of phenylalkanoic acid or phenylalkenoic acids. These forms of the drugs provide a convenient dosage form of the drugs. The prodrugs of the invention are useful to treat patients with diseases of nitrogen accumulation, patients with certain .beta.-hemoglobinopathies, anemia, and cancer.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: October 19, 1999
    Assignee: Brusilow Enterprises LLC
    Inventor: Saul W. Brusilow
  • Patent number: 5919755
    Abstract: The invention is to a method for stimulating the production of fetal hemoglobin in a mammal having a hemoglobinopathy, comprising administering heme or a derivative thereof.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: July 6, 1999
    Assignee: Leiras OY
    Inventors: Mauno Kangasaho, Klaus Relander
  • Patent number: 5885621
    Abstract: Disclosed are methods for treating a patient identified as having a hemoglobinopathy that is characterized by a reduced affinity of hemoglobin for oxygen. The methods involve providing gaseous nitric oxide and/or carbon monoxide for (i) inhalation by the patient or (ii) ex vivo treatment of the patient's erythrocytes. Alternatively, a nitric-oxide-releasing compound can be administered to the patient.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: March 23, 1999
    Assignee: The General Hospital Corporation
    Inventors: C. Alvin Head, Warren M. Zapol
  • Patent number: 5846528
    Abstract: The use of recombinant adeno-associated virus (AAV) virions for delivery of DNA molecules to muscle cells and tissue in the treatment of anemia is disclosed. The invention allows for the direct, in vivo injection of recombinant AAV virions into muscle tissue, e.g., by intramuscular injection, as well as for the in vitro transduction of muscle cells which can subsequently be introduced into a subject for treatment. The invention provides for sustained, high-level expression of a delivered nucleotide sequence encoding erythropoietin, and for in vivo secretion thereof from transduced muscle cells such that systemic delivery is achieved.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: December 8, 1998
    Assignees: Avigen, Inc., Johns Hopkins University
    Inventors: Gregory M. Podsakoff, Gary J. Kurtzman
  • Patent number: 5800819
    Abstract: A phytochemical composition for treating sickle cell disease is provided. The composition is a cold water extraction product of a mixture containing Piper guineenses seeds, Pterocarpus osum stem, Eugenia caryophyllum fruit, Sorghum bicolor leaves and potash.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: September 1, 1998
    Assignee: National Institute for Pharmaceutical Research and Development Federal Ministry of Science and Technology
    Inventors: Charles Wambebe, P. O. Ogunyale, K. S. Gamaniel, R. N. Nasipuri, J. I. Okogun, Babatunde Samuel, Akin Olusola, Abayomi Orisadipe
  • Patent number: 5750132
    Abstract: The present invention relates to methods of lessening the severity and frequency of adverse effects associated with administration of extracellular hemoglobin comprising administration of a smooth muscle relaxant. Preferred smooth muscle relaxants are terbutaline and nifedipine, which can be administered in a prophylactic treatment, responsive regimented treatment or responsive intermittent treatment.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: May 12, 1998
    Assignee: Somatogen, Inc.
    Inventor: Michael J. Gerber
  • Patent number: 5669396
    Abstract: Methods are described for treating sickle cell disease, and in particular, detection and treatment of vaso-occlusive crisis in sickle cell disease. Antibodies are employed which bind competitively and suppress adhesion of sickle erythrocytes to autologous lymphocytes.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: September 23, 1997
    Assignee: President and Fellows of Harvard College
    Inventors: David Eric Golan, Hemant Sadashiv Thatte, Alexandru Cristian Bageac
  • Patent number: 5585399
    Abstract: The present invention relates to a method of using a preparation of triacylglycerol which contains unsaturated fatty acids having no more than two double bonds to preserve normal erythrocyte deformability, to improve microcirculation, to protect myocardium against ischemic damage and to suppress arrhythmia in ischemic heart, i.e. to protect cells and tissues of a mammalian body against various forms of mechanical and chemical injuries.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: December 17, 1996
    Inventors: Chuang-Ye Hong, Li-Ju Lai, Sheau-Farn Yeh
  • Patent number: 5569675
    Abstract: This invention relates to novel methods of increasing the level of fetal hemoglobin (HbF) in a subject and methods of treating, preventing or ameliorating .beta.-globin or other HbF-related disorders by increasing the level of HbF in a subject in need of such treatment comprising administering one or more compounds of the Formulae (I), (II), or (III):(I) XCH.sub.2 --CHX--CHX--C(.dbd.O)--O--Z(II) CH.sub.3 --CO--CH.sub.2 --C(.dbd.O)--O--Z(III) CH.sub.3 --CH.sub.2 --CO--C(.dbd.O)--O--Zwherein:X is H, or one of X only may be OH;Z is --CHR--O--C(.dbd.O)R', --CHR--O--C(.dbd.
    Type: Grant
    Filed: March 7, 1994
    Date of Patent: October 29, 1996
    Assignees: Bar Ilan University, Mor Research Applications Ltd.
    Inventors: Ada Rephaeli, Abraham Nudelman, Matityahu Shaklai
  • Patent number: 5447720
    Abstract: A composition and method of treatment of hemoglobinopathies, such as, for example, sickle cell disease and thalassemia, wherein an inventive extract used in such treatment is obtained from alfalfa and other certain plant materials, preferably using a hydroxide base and hexane. In the most preferred embodiment, the plant material is first extracted with 1,1,1-trichloroethane and a hydroxide base, followed by extraction with hexane. The polar acidic compounds present in alfalfa and other plant materials selectively dissolve in the hexane phase and exhibit good antisickling activity in vitro. Further, these active compounds which comprise the inventive extract are effective in vivo by significantly alleviating the many clinical manifestations of sickle cell disease and thalassemia experienced by the affected patients.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: September 5, 1995
    Assignee: Sunday O. Fadulu
    Inventor: Sunday O. Fadulu
  • Patent number: 5439939
    Abstract: This invention relates to treatment of betaglobin disorders, such as sickle-cell anemia and beta-thalassemia, by administering compositions of isobutyramide.
    Type: Grant
    Filed: March 17, 1992
    Date of Patent: August 8, 1995
    Assignee: Children's Hospital Medical Center of Northern California
    Inventor: Susan P. Perrine
  • Patent number: 5273992
    Abstract: The present invention provides a chemical class of active compounds to be used as efficacious drugs in the treatment of sickle cell disease. The active compounds include imidazole derivatives, nitroimidazole derivatives, and triazole derivatives. These compounds are to be administered by any preferred route of administration including oral, intramuscular, intravenous, and any other parenteral route. If desired, these drugs may also be administered transmucosally, or subcutaneously, or using a dermal patch on the skin. In addition, the methodology is effective for both long term and short term therapy; may be employed prophylactically and/or therapeutically; and may be used in emergency, acute crisis clinical situations.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: December 28, 1993
    Assignee: Beth Israel Hospital Assoc. Inc.
    Inventors: Carlo Brugnara, Seth L. Alper
  • Patent number: 5225447
    Abstract: The major component of the carbonate fraction of free acids extractable from alfalfa has shown excellent control of symptoms in patients with sickle cell disease. Its structure has been established by proton NMR spectrometry as being 16-hydroxy-9Z,12Z,14E-octadecatrienoic acid and closely related compounds, such as simple esters, amides, triglycerides, or other derivatives of the carboxylic acid function, and a method for its synthesis from linseed oil or methyl linolenate has been developed. The product from linseed oil, both in the form of the initially formed triglyceride and in the form of its free acid obtained by saponification, is useful for the treatment of sickle cell disease.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: July 6, 1993
    Assignee: Omex International, Inc.
    Inventor: Alfred J. Weinheimer
  • Patent number: 5177208
    Abstract: A method for preventing the sickling of sickle cells in a patient having sickle cell disease, the method which comprises administering to the patient a therapeutically effective amount of a compound having the formula: ##STR1## wherein X.sup.- is selected from the group consisting of iodide, chloride, bromide, hydroxyl, nitrite, phosphate and acetate.
    Type: Grant
    Filed: January 13, 1992
    Date of Patent: January 5, 1993
    Inventor: Michael Wilburn
  • Patent number: 5108754
    Abstract: A method for preventing the sickling of sickle cells in a patient having sickle cell disease, the method which comprises administering to the patient a therapeutically effective amount of a compound having the formula: ##STR1## wherein X.sup.- is selected from the group consisting of iodide, chloride, bromide, hydroxyl, nitrite, phosphate and acetate.
    Type: Grant
    Filed: February 8, 1991
    Date of Patent: April 28, 1992
    Inventor: Michael Wilburn
  • Patent number: 5025029
    Abstract: A method is provided for inhibiting the .gamma. to .beta.-globin switching in subjects afflicted with .beta.-globin disorders. The method is particularly adapted for ameliorating the clinical symptoms of sickle cell anemia by periodically introducing butyrate, or certain isomers, homologs, analogs or chemical variations thereof, into the bloodstream of the subject prior to natural completion of the switching process.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: June 18, 1991
    Assignee: Children's Hospital Medical Center of Northern California
    Inventor: Susan Perrine
  • Patent number: 5006512
    Abstract: The invention provides novel therapeutic usages of inhibitors of a potassium channel of the cells. Since the increase of the intracellular calcium concentration is known to trigger various reactions which destroy the cells, the prevention of calcium entry by calcium channel blockers are known to be beneficial in protecting cell membranes in ischemic and traumatic injuries. However, the importance of potassium ions in cell injuries has not been well recognized. Using charybdotoxin (which is not a calcium channel blocker, but is a potassium channel blocker), the inventor found that this compound as well as related compounds have protecting effects in brain is chemia, liver ischemia and spinal cord injury at an extremely low concentration (0.05-0.14 mg/kg body weight). In in vitro experiments, these compounds inhibited the irreversible denaturation of sickle red cell membranes caused by sickling-unsickling stress at an extremely low concentration (2.times.10.sup.-8 M).
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: April 9, 1991
    Inventor: Tsuyoshi Ohnishi
  • Patent number: 4904678
    Abstract: Method of providing anti-sickling of red blood cells in sickle cell anemia patients without hemolyzing said cells, using thiocyanates alone, or together with Vitamin B.sub.6.
    Type: Grant
    Filed: August 25, 1987
    Date of Patent: February 27, 1990
    Assignee: Jerome J. Norris
    Inventor: Oji A. Chima
  • Patent number: 4851404
    Abstract: A therapeutic method of treatment of hemoglobinopathy by administration of a drug capable of blocking the Ca.sup.+2 channel in and out of muscle cells. Drugs known to possess this capability are 1,4-dihydropyridines, .beta.-phenethylamines, benzothiazepines, ethylenediamines and diaryl alkyl amines. These drugs are known to block the influx of Ca.sup.+2 into the cardiac muscle and are known to be useful in treatment of such heart muscle conditions as angina. It has now been unexpectedly discovered that such drugs can be used to treat hemoglobinopathy.
    Type: Grant
    Filed: January 15, 1985
    Date of Patent: July 25, 1989
    Assignee: Miles Inc.
    Inventor: S. Tsuyoshi Ohnishi
  • Patent number: 4835146
    Abstract: Treatment of sickle cell disease using danazol.
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: May 30, 1989
    Assignee: University of Miami
    Inventors: William J. Harrington, Yeon S. Ahn, Ravindra Mylvaganam
  • Patent number: 4822821
    Abstract: A method is provided for inhibiting the .gamma. to .beta.-globin switching in subjects afflicted with .beta.-globin disorders. The method is particularly adapted for ameliorating the clinical symptoms of sickle cell anemia by periodically introducing into the bloodstream of the subject prior to natural completion of the switching process .alpha.-amino-n-butyric acid, butyric acid, isomers or salts thereof, insulin, histone deacetylase inhibitors, or mixtures thereof.
    Type: Grant
    Filed: October 10, 1986
    Date of Patent: April 18, 1989
    Assignee: Children's Hospital Medical Center of Northern California
    Inventor: Susan Perrine
  • Patent number: 4751244
    Abstract: The present invention is directed to compounds of the general formula I and pharmaceutically acceptable salts thereof: ##STR1## wherein: R.sup.1 =HO or HOOC(CH.sub.2).sub.x CHR.sup.2 NH--;R.sup.2 =H, lower alkyl, benzyl or --CH.sub.2 OH;x=0 or 1;A=--(CH.sub.2).sub.n -- or ##STR2## n=1 to 5; and Y=H, Cl or OCH.sub.3Z=H or Clm=0 or 1R=lower alkyl;with the proviso that where R.sup.1 =OH, Y is H or Cl and m is 1, n is 4 or 5.The present invention is also directed to an antisickling pharmaceutical carrier and an antisickling agent of the general formula (I) (without the proviso) and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: April 30, 1987
    Date of Patent: June 14, 1988
    Assignees: Merck & Co., Inc., The University of Pittsburgh
    Inventors: Donald J. Abraham, Otto W. Woltersdorf, Jr., Edward J. Cragoe, Jr.
  • Patent number: 4731381
    Abstract: The present invention is directed to a method of treating a person for sickle cell anemia comprising administering to the person a therapeutically effective dosage of a compound of the general formula (I) and pharmaceutically acceptable salts thereof: ##STR1## wherein: R=ethyl, propyl or isopropyl; and ##STR2##
    Type: Grant
    Filed: April 4, 1986
    Date of Patent: March 15, 1988
    Assignee: Merck & Co., Inc.
    Inventors: Donald J. Abraham, Edward J. Cragoe, Jr., Otto W. Woltersdorf, Jr.
  • Patent number: 4704402
    Abstract: A method of treating a person for sickle cell anemia including administering to the person a therapeutically effective dosage of the compound ##STR1## wherein at least one R=Cl, BR, CH.sub.3 or OCH.sub.3 and each other R=H, R'=H or CH.sub.3 and n=1, 2, 3, 4 or 5. The compound is preferably selected from the group consisting of clofibrate, clofibric acid, p-chlorophenoxyacetic acid and phenoxyacetic acid. It is preferably administered in solid dosage form and may advantageously be employed in prophylactic treatment to resist sickle cell crises.
    Type: Grant
    Filed: November 21, 1983
    Date of Patent: November 3, 1987
    Assignee: University of Pittsburgh
    Inventors: Donald J. Abraham, Donald Witiak
  • Patent number: 4665058
    Abstract: The invention provides a new composition and method for the treatment of sickle cell anemia. The composition includes as an active ingredient an effective amount of the compound, phlorizin benzylazide: ##STR1## and an appropriate pharmaceutical excipient. Load and maintenance dosage ranges as well as effective blood concentration levels for the active ingredient are disclosed.
    Type: Grant
    Filed: March 16, 1985
    Date of Patent: May 12, 1987
    Assignee: The University of Kentucky Research Foundation
    Inventors: Donald F. Diedrich, Christopher L. Maynard
  • Patent number: 4613616
    Abstract: The present invention relates to polymeric iron chelators based upon hydroxamic acids having the general formula: ##STR1## wherein R is hydrogen or lower alkyl. The present compound is useful for the treatment of iron overload disorders particularly arising from iron poisoning and the disease .beta.-thalassemia otherwise known as Cooley's Anemia. The polymeric hydroxamic acids of the present invention exhibit high selectivity for iron, good water solubility for both the chelator and its iron complex, low toxicity and, most significantly, increased bioactivity, i.e., the ability to remove iron in vivo.
    Type: Grant
    Filed: July 20, 1984
    Date of Patent: September 23, 1986
    Assignee: Research Corporation
    Inventors: Anthony Winston, D. V. P. R. Varaprasad
  • Patent number: 4535183
    Abstract: This invention is directed to novel ether compounds of formula (I) ##STR1## which are of value in medicine in the palliation of haemoglobinopathies, in particular sickle-cell anemia, and also in the palliation of pulmonary dyefunction, protection from the effects of hypoxia and the radio-sensitization of tumours. The invention is also directed to methods for the preparation of the ether compounds, to pharmaceutical formulations containing them, the preparation of such formulations and the use of the compounds in human medicine. Also provided by the invention are intermediates of value in the preparation of the ether compounds, by the methods described, and the preparation of the intermediates.
    Type: Grant
    Filed: December 18, 1981
    Date of Patent: August 13, 1985
    Assignee: Burroughs Wellcome Co.
    Inventor: Geoffrey Kneen
  • Patent number: RE36080
    Abstract: A method is provided for inhibiting the .gamma. to .beta.-globin switching in subjects afflicted with .beta.-globin disorders. The method is particularly adapted for ameliorating the clinical symptoms of sickle cell anemia by periodically introducing butyrate, .Iadd..alpha.-amino-n-butyric acid, .Iaddend.or .?.certain isomers, homologs, analogs or chemical variations thereof,.!. .Iadd.isobutyramide .Iaddend.into the bloodstream of the subject prior to natural completion of the switching process.
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: February 2, 1999
    Assignee: Children's Hospital Medical Center of Northern California
    Inventor: Susan P. Perrine