Patents Assigned to Biocon
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Publication number: 20110236925Abstract: The invention relates to methods of separation and/or purification of impurities yielding a purified heterologous protein product devoid of related impurities or with substantially minimal quantities of such glycosylated impurities. More specifically, the invention relates to the identification of glycosylated forms of insulin analogues such as glargine impurities characterized post expression in yeast based systems such as Pichia pastoris. The invention also relates to methods used to clone gene encoding the protein insulin glargine; inserting the related gene in a suitable yeast host; producing culture of the recombinant strain, stimulating expression of the heterologous polypeptide, its secretion and purification post fermentation and related enzymatic conversions.Type: ApplicationFiled: April 3, 2008Publication date: September 29, 2011Applicant: BIOCON LIMITEDInventors: Partha Hazra, Nitesh Dave, Vivekanandan Kannan, Sanjay Tiwari, Anuj Goel, Harish Iyer, Nita Roy, Krishnamurthy Venkatesan, Anoop Vasudevan, Anupama Jagadish, Goldy Sachdev, Mukesh, Babuappa Patale
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Patent number: 8012723Abstract: The present invention discloses a new strain of Streptomyces sp. BICC 7522, its variants or mutants and use of the strain for the production of macrolides, process of production and purification of macrolides.Type: GrantFiled: January 12, 2010Date of Patent: September 6, 2011Assignee: Biocon, Ltd.Inventors: Madhav Kulkarni, Surekha K. Prabhu, Madenahally Channabasappa Shivakumar, Prijyajit Sengupta, Sanjay Tiwari, Rakesh Mendhe, Nitin Patil, Laxmi Adhikary, Anand Khedkar, Ramakrishnan Melarkode, Ramavana Gururaja, Shrikumar Suryanarayan
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Patent number: 7977454Abstract: The present invention discloses a process for making an insulin-oligomer conjugate as a one-pot reaction by conjugation of insulin-ester with an activated oligomer wherein simultaneous deblocking and conjugation is carried out.Type: GrantFiled: July 8, 2005Date of Patent: July 12, 2011Assignee: Biocon LimitedInventors: Partha Hazra, Manjunath Hadavanahalli Shivarudraiah, Anand Khedkar, Harish Iyer, Nitesh Dave, Gautam Krishnan, Shrikumar Suryanarayan
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Publication number: 20110159538Abstract: The present invention relates to the preparation of insulin compounds including their analogs or derivatives thereof from their corresponding precursor forms by a one step enzymatic reaction involving the combinatorial and concurrent use of optimal quantities of trypsin and carboxypeptidase B that work synergistically directing the reaction in a controlled manner to avoid production of random undesired byproducts. Particularly, the enzymatic conversion reactions of the instant invention offer advantages of reduction in the number operational steps, higher yield and purity of the desired end products.Type: ApplicationFiled: September 19, 2008Publication date: June 30, 2011Applicant: BIOCON LIMITEDInventors: Partha Hazra, Srikanth Gollarahosahalli Sathyanarayana, Suma Sreenivas, Manjunath Hadavanahalli Shivarudraiah, Kedarnath Nanjund Sastry, Harish Iyer
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Publication number: 20110118480Abstract: The present invention relates to methods of synthesizing oligomeric compounds, and more particularly, to methods of synthesizing oligomer compounds comprising polyethylene glycol moieties. The present invention provides improved methods for synthesizing oligomers comprising polyethylene glycol moieties. Methods according to embodiments of the present invention may utilize reaction conditions that are milder, efficacious than those taught by conventional methods.Type: ApplicationFiled: August 28, 2008Publication date: May 19, 2011Applicant: BIOCON LIMITEDInventors: Reena Vijayaraghavan, Srinivas Pullela Venkata, Chandrashekar Aswathanarayanappa
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Patent number: 7932366Abstract: Methods are disclosed for preparing compounds of Formula I: where R1, R3, and R4 are independently hydrogen or C1 to C4 alkyl, and R2 is: where R5 is selected from the group consisting of hydrogen and C1 to C4 alkyl, or where R6, R7 and R8 are independently hydrogen or C1 to C4 alkyl; or the esters or pharmacologically acceptable salts thereof. The methods can involve converting a suitably functionalized aniline compound to a diazonium salt (which aniline compound can be first formed by reduction of a nitrobenzene) and coupling the diazonium salt with a suitably functionalized benzene compound. The suitably functionalized aniline compound either includes a primary alcohol or aldehyde group, which is then oxidized to a carboxylic acid group, or includes a nitrile or amide group, which is hydrolyzed to a carboxylic acid group. The methods can also involve the direct coupling (via reduction of nitro groups to form an azo linkage) of suitably functionalized nitrobenzenes.Type: GrantFiled: July 7, 2005Date of Patent: April 26, 2011Assignee: Biocon LimitedInventors: Jennifer A. Riggs-Sauthier, Nnochiri N. Ekwuribe
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Patent number: 7875700Abstract: The invention provides a complex including a cation and an insulin compound conjugate. The insulin compound conjugate includes insulin compound, such as human insulin or an analog thereof, conjugated to a modifying moiety, such as a polyethylene glycol moiety. The invention also includes solids and pharmaceutical compositions including such complexes, methods of making such complexes, and methods of using such complexes in the treatment of insulin compound deficiencies and other ailments. Further, the invention includes novel insulin compound conjugates and modifying moieties for use in making novel insulin compound conjugates. The invention also includes fatty acid compositions for administration of pharmaceutical agents, such as the novel insulin compound conjugates, and/or the cation-insulin compound conjugate complexes of the invention.Type: GrantFiled: July 19, 2005Date of Patent: January 25, 2011Assignee: Biocon LimitedInventors: Balasingam Radhakrishnan, Diti Aggarwal, Michelle Ferro, Kenneth D. James, Navdeep B. Malkar, Mark A. Miller, Monica Puskas, Nnochiri N. Ekwuribe
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Patent number: 7872095Abstract: An insulin compound coupled to a modifying moiety having a formula: —X—R1—Y-PAG-Z—R??(Formula VI) where, X, Y and Z are independently selected linking groups and each is optionally present, and X, when present, is coupled to the insulin compound by a covalent bond, either R1 or R2 is is a lower alkyl, optionally including a carbonyl group, and when R1 is a lower alkyl, R2 is a capping group, and PAG is a linear or branched carbon chain incorporating one or more alkalene glycol moieties, and optionally incorporating one or more additional moieties selected from the group consisting of —S—, —O—, —N—, and —C(O)—, and where the modifying moiety has a maximum number of 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, or 25 heavy atoms.Type: GrantFiled: July 19, 2005Date of Patent: January 18, 2011Assignee: Biocon LimitedInventors: Balasingam Radhakrishnan, Diti Aggarwal, Michelle Ferro, Kenneth D. James, Navdeep B. Malkar, Mark A. Miller, Monica Puskas, Nnochiri N. Ekwuribe
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Publication number: 20100317056Abstract: The present invention demonstrates the utility of carbonic acid amides such as urea or its derivatives, carbamates, carbodiimides & thiocarbamides as nitrogenous supplements in fermentation media for production of recombinant proteins to achieve enhanced bioconversion rates and peptides like insulin and insulin analogues, exendin and enzymes such as lipase using methanol inducible fungal expression systems such as Pichia.Type: ApplicationFiled: February 5, 2009Publication date: December 16, 2010Applicant: BIOCON LIMITEDInventors: Sanjay Tiwari, Mukesh Babuappa Patale, Saurabh Garg, Mayank Kumar Garg, Sulekha Joshi, Chittnalli Ramegowda Naveen Kumar, Bimal Kumar, Anuj Goel, Harish Iyer
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Publication number: 20100317827Abstract: The invention relates, interalia, to the field of purification of peptides, notably cyclic or non-cyclic peptides their analogs or derivatives thereof. More particularly, the invention relates to a simplified and optimized purification process of cyclic peptides from a composition comprising the said peptide and at least one related impurity by chromatographic procedures enabling high yields, selectivity and purity of the desired end product. The improved process is particularly useful for the preparation of eptifibatide, exenatide, atosiban, nesiritide and their respective derivatives and analogs. The polypeptides are prepared in high purity of at least about 96%, and preferably at least about 99%.Type: ApplicationFiled: March 26, 2008Publication date: December 16, 2010Applicant: BIOCON LIMITEDInventors: Nitesh Dave, Krishnamurthy Venkatesan, Ramprabu Nagarajan, Harish Iyer
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Publication number: 20100285143Abstract: The invention relates to improvised pharmaceutical compositions permitting ingestion via oral delivery of proteins/peptides or their conjugates, and/or cation-insulin conjugate complexes demonstrating desirable pharmacokinetic profiles and potency in efficacy models of diabetes in dogs and humans. A preferred formulation comprises 0.01%-20% w/w of insulin, insulin compound conjugates and/or cation insulin conjugates, 10%-60% w/w of one or more fatty acid components selected from saturated or unsaturated C4-C12 fatty acids and/or salts of such fatty acids and additionally contains optimal amounts of other pharmaceutically suitable polymer excipients which permit improved solubility, dissolution rate and effective bioavailability of poorly water soluble compositions and consistent in-vivo release profiles upon scalability during manufacture. A further aspect of the invention features the process of preparing the aforesaid formulations.Type: ApplicationFiled: October 16, 2008Publication date: November 11, 2010Applicant: BIOCON LIMITEDInventors: Anand Khedkar, Sharath, Kumar, Mallapura Rangappa, Ramesh Subramani, Nitesh Dave, Devesh Radhakrishnan, Sundaresh Shankar, Sudheer Chivukula, Ranjith Ramakrishna, Shanmugam, Thandava Murthy, Harish Venkatraman Pai, Nilanjan Sengupta, Ramakrishnan Melarkode, Harish Iyer
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Publication number: 20100184985Abstract: The present invention discloses a new strain of Streptomyces sp. BICC 7522, its variants or mutants and use of the strain for the production of macrolides, process of production and purification of macrolides.Type: ApplicationFiled: January 12, 2010Publication date: July 22, 2010Applicant: Biocon, Ltd.Inventors: Madhav Kulkarni, Surekha K. Prabhu, Madenahally Channabasappa Shivakumar, Prijyajit Sengupta, Sanjay Tiwari, Rakesh Mendhe, Nitin Patil, Laxmi Adhikary, Anand Khedkar, Ramakrishnan Melarkode, Ramavana Gururaja, Shrikumar Suryanarayan
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Publication number: 20100167342Abstract: The present invention relates to a method of producing a biologically active polypeptide having insulinotropic activity, the method comprising steps of: (a) transforming a genetically modified host cell that has protease gene knockout, with a polynucleotide vector encoding the polypeptide; and (b) growing the transformed host cell to produce the biologically active polypeptide; and a method of producing a biologically active polypeptide having an N-terminal recognition site His-Gly with insulinotropic activity, the method comprising steps of: (a) transforming a genetically modified Pichia pastoris that has protease gene STE13 knockout, with a polynucleotide vector encoding the polypeptide; and (b) growing the transformed Pichia pastoris to produce the biologically active polypeptide.Type: ApplicationFiled: June 20, 2007Publication date: July 1, 2010Applicant: BIOCON LIMITED,Inventors: Ramakrishnan Melarkode, Akundi Venkata Sriram, Kedarnath Nanjund Sastry, Lakshmi Prabha Varadarajalu, Shrikumar Suryanarayan
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Patent number: 7713932Abstract: Calcitonin drug-oligomer conjugates that include a calcitonin drug coupled to an oligomer including a single polyalkylene glycol moiety consisting of between 4 and 10 polyalkylene glycol subunits are disclosed. Pharmaceutical compositions including such conjugates and methods of treating bone disorders by administering such conjugates are also disclosed.Type: GrantFiled: November 8, 2002Date of Patent: May 11, 2010Assignee: Biocon LimitedInventors: Nnochiri N. Ekwuribe, Balasingam Radhakrishnan
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Patent number: 7704725Abstract: The present invention discloses a new strain of Streptomyces sp. BICC 7522, its variants or mutants and use of the strain for the production of macrolides, process of production and purification of microlides.Type: GrantFiled: April 12, 2004Date of Patent: April 27, 2010Assignee: Biocon LimitedInventors: Madhav Kulkarni, Surekha K. Prabhu, Madenahally Channabasappa Shivakumar, Prijyajit Sengupta, Sanjay Tiwari, Rakesh Mendhe, Nitin Patil, Laxmi Adhikary, Anand Khedkar, Ramakrishnan Melarkode, Ramavana Gururaja, Shrikumar Suryanarayan
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Patent number: 7662773Abstract: Modified natriuretic compounds and conjugates thereof are disclosed in the present invention. In particular, conjugated forms of hBNP are provided that include at least one modifying moiety attached thereto. The modified natriuretic compound conjugates retain activity for stimulating cGMP production, binding to NPR-A receptor, and in some embodiments an improved half-life in circulation as compared to unmodified counterpart natriuretic compounds. Oral, parenteral, subcutaneous, and intravenous forms of the compounds and conjugates may be prepared as treatments and/or therapies for heart conditions particularly congestive heart failure. Modifying moieties comprising oligomeric structures having a variety of lengths and configurations are also disclosed. Analogs of the natriuretic compound are also disclosed, having an amino acid sequence that is other than the native sequence.Type: GrantFiled: November 26, 2003Date of Patent: February 16, 2010Assignee: Biocon LimitedInventors: Kenneth D. James, Balasingam Radhakrishnan, Navdeep B. Malkar, Mark A. Miller, Nnochiri N. Ekwuribe
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Publication number: 20100029933Abstract: The present invention relates to a pure form of rapamycin with a total impurity content less than 1.2%; a process for recovery and purification of rapamycin comprising steps of (a) treating the fermentation broth, extracts or solutions containing rapamycin with water immiscible solvent and concentration; (b) addition of a water miscible solvent to effect separation of impurities present; (c) optionally, binding of the solvent containing the product from step (b) to an inert solid, washing the solid with a base and acid, followed by elution; (d) subjecting the elute from step (c) or the solvent containing the product from step (b) to silica gel chromatography; (e) crystallization of the product obtained from step (d); (f) subjecting a solution of the product from step (e) to hydrophobic interaction or reversed phase chromatography; and (g) re-crystallization to afford rapamycin in substantially pure form.Type: ApplicationFiled: December 26, 2006Publication date: February 4, 2010Applicant: Biocon LimitedInventors: Nitin Sopanrao Patil, Syed Idris Hussaini, Ashish Kumar Singh, Rakesh Bhaiyyaram Mendhe
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Patent number: 7648962Abstract: Modified natriuretic compounds and conjugates thereof are disclosed in the present invention. In particular, conjugated forms of hBNP are provided that include at least one modifying moiety attached thereto. The modified natriuretic compound conjugates retain activity for stimulating cGMP production, binding to NPR-A receptor, and in some embodiments an improved half-life in circulation as compared to unmodified counterpart natriuretic compounds. Oral, parenteral, enteral, subcutaneous, pulmonary, and intravenous forms of the compounds and conjugates may be prepared as treatments and/or therapies for heart conditions particularly congestive heart failure. Modifying moieties comprising oligomeric structures having a variety of lengths and configurations are also disclosed. Analogs of the natriuretic compound are also disclosed, having an amino acid sequence that is other than the native sequence.Type: GrantFiled: November 30, 2004Date of Patent: January 19, 2010Assignee: Biocon LimitedInventors: Kenneth D. James, Balasingham Radhakrishnan, Navdeep B. Malkar, Mark A. Miller, Nnochiri N. Ekwuribe
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Patent number: 7645888Abstract: A novel process of the preparation of amorphous atorvastatin calcium starting from a compound of Formula (II).Type: GrantFiled: August 27, 2004Date of Patent: January 12, 2010Assignee: Biocon LimitedInventors: Sumithra Srinath, Joy Matthew, Tom Thomas Puthiaprampil, Sambasivam Ganesh
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Patent number: 7635675Abstract: Fatty acid salt particles having a size distribution wherein the particles are from about 1 to about 1,000 microns in diameter, use of the particles in pharmaceutical compositions, as well as methods of making and using the particles and compositions.Type: GrantFiled: August 13, 2004Date of Patent: December 22, 2009Assignee: Biocon LimitedInventors: Foyeke Opawale, Richard Soltero