Abstract: A composition for preventing or treating diabetes mellitus includes insulin and a GLP-1/glucagon dual agonist. The composition can inhibit the weight gain and reduce the danger of hypoglycemia due to the administration of insulin, lower the administration dose and greatly improve the compliance of drugs through a combined administration of a long-acting insulin conjugate and a long-acting GLP-1/glucagon dual agonist conjugate. In addition, the long-acting insulin conjugate and the long-acting GLP-1/glucagon dual agonist conjugate can improve the in vivo sustainability and stability because an insulin and a GLP-1/glucagon dual agonist are linked to the immunoglobulin Fc region via a non-peptidyl linker. A method for preventing or treat diabetes mellitus includes administration of the insulin and a GLP-1/glucagon dual agonist.

Abstract: The present invention relates to a liquid formulation of a long-acting human growth hormone conjugate and a preparation method thereof.

Abstract: The present invention relates to a triple agonist having activities to all of glucagon, GLP-1, and GIP receptors and uses thereof.

Abstract: The present invention relates to a composition for the prevention or treatment of diabetes including a long-acting insulin conjugate and a long-acting insulinotropic peptide conjugate, and a method for treating diabetes. More specifically, combination administration of the long-acting analog conjugate and the long-acting insulinotropic peptide conjugate inhibits weight gain due to administration of insulin, and vomiting and nausea due to administration of the insulinotropic peptide, and also reduces the required doses of insulin, thereby remarkably improving drug compliance. In addition, the present invention relates to administering a pharmaceutical composition for reducing side effects of pancreatic beta cells in diabetic patients, including a long-acting insulin analog conjugate and a long-acting insulinotropic peptide analog conjugate, and to a method for reducing side effects of pancreatic beta cells in diabetic patients, including the step of administering the composition.

Abstract: The present invention relates to a protein conjugate in which a physiologically active polypeptide and a biocompatible material are linked through a fatty acid derivative, thus having an extended duration of physiological activity compared to that of a natural type, and a method of preparing the same. The protein conjugate of the present invention in which a biocompatible material, fatty acid, and a physiologically active polypeptide are linked was confirmed to have an increased half-life of the physiologically active polypeptide, and thus can be widely used in the field of protein drugs.

Abstract: Disclosed is a protein complex, comprising a physiologically active polypeptide, a dimeric protein and a non-peptidyl polymer having three functional ends (3-arm), with the linkage of both the physiologically active polypeptide and the dimeric protein to the 3-arm non-peptidyl polymer via respective covalent bonds. The protein complex guarantees the long acting activity and biostability of a physiologically active polypeptide. Having the ability to maintain the bioactivity of physiologically active polypeptides or peptides highly and to significantly improve the serum half life of the polypeptides or peptides, the protein complex can be applied to the development of sustained release formulations of various physiologically active polypeptide drugs. Also, it utilizes raw materials including the physiologically active polypeptides without significant loss, thereby increasing the production yield. Further, it can be easily purified.

Abstract: A liquid formulation of highly concentrated long-acting human growth hormone conjugate contains a pharmaceutically effective amount of the long-acting human growth hormone conjugate in which human growth hormone (hGH) is linked to an immunoglobulin Fc region, and an albumin-free stabilizer, said stabilizer comprising a buffer, a non-ionic surfactant, a sugar alcohol, and sodium chloride as an isotonic agent. A method for preparing the same is provided.

Abstract: Disclosed are a protein conjugate with improved in vivo duration and stability and the use thereof. The protein conjugate includes a physiologically active polypeptide, a non-peptide polymer and an immunoglobulin Fc fragment. Since the three components are covalently linked, the protein conjugate has extended in vivo duration and enhanced stability for the physiologically active polypeptide. The protein conjugate maintains the in vivo activity at relatively high levels and remarkably increases the serum half-life for the physiologically active polypeptide, with less risk of inducing undesirable immune responses. Thus, the protein conjugate is useful for developing long-acting formulations of various polypeptide drugs.

Abstract: Provided is a complex composition, of which positional isomers are minimized by using a N-terminus of an immunoglobulin Fc region as a binding site when the immunoglobulin Fc region is used as a carrier. Also provided are a protein complex which is prepared by N-terminal-specific binding of immunoglobulin Fc region, thereby prolonging blood half-life of the physiologically active polypeptide, maintaining in vivo potency at a high level, and having no risk of immune responses, a preparation method thereof, and a pharmaceutical composition including the same for improving in vivo duration and stability of the physiologically active polypeptide. The protein complex prepared by the present invention may be usefully applied to the development of long-acting formulations of various physiologically active polypeptide drugs.

Abstract: The present invention relates to a long-acting conjugate of a triple agonist having activities to all of glucagon, GLP-1, and GIP receptors and uses thereof.

Abstract: An insulin conjugate having improved in vivo duration and stability is provided. The conjugate is prepared by covalently linking insulin with an immunoglobulin Fc region via a non-peptidyl polymer, a long-acting formulation comprising the same, and a preparation method thereof. The insulin conjugate of the present invention maintains in vivo activity of the peptide at a relatively high level and remarkably increases the serum half-life thereof, thereby greatly improving drug compliance upon insulin treatment.

Abstract: The present invention relates to a method of preparing insulin from proinsulin comprising converting high-concentration proinsulin into insulin by enzymatic cleavage, a method of purifying insulin, and insulin prepared therefrom.

Abstract: An insulin analog with an improved in vitro effect compared with native insulin, a nucleic acid encoding the same, an expression vector including the nucleic acid, a transformant introduced with the expression vector, a method of producing the insulin analog from the transformant, a pharmaceutical composition for treating diabetes containing the insulin analog as an active ingredient, and a method for treating diabetes using the insulin analog or the pharmaceutical composition.

Abstract: The present invention relates to a physiologically active polypeptide conjugate comprising multiple physiologically active polypeptides and immunoglobulin Fc regions, use thereof, and a preparation method thereof.

Abstract: An insulin analog has a reduced insulin titer and a reduced insulin receptor binding affinity compared to the native form for the purpose of increasing the blood half-life of insulin. A conjugate is prepared by linking the insulin analog and a carrier. A long-acting formulation includes the conjugate.

Abstract: Disclosed is a protein complex, comprising a physiologically active polypeptide, a dimeric protein and a non-peptidyl polymer having three functional ends (3-arm), with the linkage of both the physiologically active polypeptide and the dimeric protein to the 3-arm non-peptidyl polymer via respective covalent bonds. The protein complex guarantees the long acting activity and biostability of a physiologically active polypeptide. Having the ability to maintain the bioactivity of physiologically active polypeptides or peptides highly and to significantly improve the serum half life of the polypeptides or peptides, the protein complex can be applied to the development of sustained release formulations of various physiologically active polypeptide drugs. Also, it utilizes raw materials including the physiologically active polypeptides without significant loss, thereby increasing the production yield. Further, it can be easily purified.

Abstract: Disclosed are a protein conjugate with improved in vivo duration and stability and the use thereof. The protein conjugate includes a physiologically active polypeptide, a non-peptide polymer and an immunoglobulin Fc fragment. Since the three components are covalently linked, the protein conjugate has extended in vivo duration and enhanced stability for the physiologically active polypeptide. The protein conjugate maintains the in vivo activity at relatively high levels and remarkably increases the serum half-life for the physiologically active polypeptide, with less risk of inducing undesirable immune responses. Thus, the protein conjugate is useful for developing long-acting formulations of various polypeptide drugs.

Abstract: The present invention relates to a liquid formulation of highly concentrated long-acting human growth hormone conjugate, comprising a pharmaceutically effective amount of the long-acting human growth hormone conjugate in which human growth hormone (hGH) is linked to an immunoglobulin Fc region, and an albumin-free stabilizer, said stabilizer comprising a buffer, a non-ionic surfactant, a sugar alcohol, and sodium chloride as an isotonic agent, and a method for preparing the same.

Abstract: Disclosed are a composition for preventing or treating diabetes, disbesity or diabetic complications, containing an oxyntomodulin analog as an active ingredient and a method for treating diabetes, diabesity or diabetic complications, including administering a pharmaceutically effective amount of an oxyntomodulin analog to a subject. The oxyntomodulin analog shows a greater activity to activate a GLP-1 receptor and a glucagon receptor, than native oxyntomodulin. The oxyntomodulin analog induces an expansion of beta-cells and increases insulin secretion, thereby reducing blood glucose levels that were increased due to a high-calorie and high-fat diet. The oxyntomodulin analog induces decreases in a body weight and appetite to improve insulin sensitivity and is useful in maintaining normal blood glucose levels.

Abstract: Provided are an insulin conjugate having improved insulin receptor binding affinity and increased activity, in which a non-peptidyl polymer and an immunoglobulin Fc region are site-specifically linked to an amino acid residue of the insulin beta chain excluding the N-terminus thereof via a covalent bond, a long-acting formulation including the same, and a preparation method thereof. The insulin conjugate of the present invention is used to provide an insulin formulation which exhibits a remarkably increased in vivo activity of the peptide.