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Drugs on Pipeline For Management of Diabetes -                                495
                                                         An Overview



                 apies  to insulin that  can  improve  glycemic control  TTP273
                 without these complications.
                                                                    Glucagon-like peptide-1  (GLP-1) is  a member of
                 Highly selective inhibitors of sodium–glucose cotrans-  the incretin family of neuroendocrine peptide  hor-
                 porter (SGLT) 2, the transporter primarily responsible   mones secreted  from  L-cells  of the intestine in
                 for renal glucose reabsorption, are approved for the   response  to food  ingestion.  Though GLP-1  has at-
                 treatment  of type  2 diabetes and under exploration   tractive  multiple metabolic effects such  as sup-
                 in patients with type 1 diabetes . SGLT1 is the primary   pression  of excessive  glucagon production, de-
                 transporter for absorption of glucose and galactose in   creased  food  intake, delayed  gastric  emptying  and
                 the intestine. Sotagliflozin is a novel, orally delivered,   improvement of  β-cell  mass and function,  their
                 small-molecule dual  inhibitor of SGLT1 and  SGLT2   widespread  use  is  hindered  by  the route  of  admin-
                 that  was  designed to reduce  glucose  absorption  in   istration (injection),  and  by the  high incidenceof
                 the gastrointestinal (GI) tract via SGLT1 inhibition and   gastrointestinal Sideeffects  (nauseaandvomiting).
                 renal glucose reabsorption via SGLT2 inhibition.
                                                                    TTP273 has been identified as an orally bioavailable,
                 The study published  in journal of diabetes care Jul   potent, non-peptide  agonist  of  GLP-1R  for  the treat-
                 2015showed that there were no cases of severe hy-  ment of type 2 diabetes and is anticipated to provide
                 poglycemia  reported,  and  numerically less  hypogly-  excellent  glycemic control and an attractive  safety
                 cemic events in the sotagliflozin-treated group com-  profile for the treatment of type 2 diabetes.
                 pared with placebo. Additionally, it has been reported
                 that treatment with 400 mg sotagliflozin given once   A  recently-completed 12-week  study in 187 patients
                 daily for 33 patients before breakfast resulted in sig-  with T2DM, where  notable HbA1c lowering,  in addi-
                 nificant  reductions  in bolus  insulin dose,  weight re-  tion to a trend for weight loss, was observed with this
                 duction, significant pre- and postmeal improvements   compound  compared  to Metformin .   The incidence
                 in glucose levels and 0.55% reduction of HbA1c after   of gastrointestinal  adverse  events noted  with  treat-
                 29  days of treatment.No  patient  on sotagliflozin re-  ment is very low. The ongoing LOGRA Phase 2 study
                 ported any genitourinary infections. 3             will evaluate TTP273, for enhanced glycemic control,
                                                                    weight loss  and  an  attractive  safety profile  for the
                 Semaglutide                                        treatment of Type 2 diabetes.

                 Currently, GLP-1 receptor agonists are available only
                 as injectables, either  once daily  or  once weekly.   Combination of Insulin
                 Semaglutide  is  a long-acting GLP-1  receptor agonist   Though  Insulin,  in many  forms, is the  prime  drug
                 that  is also being developed  as once  weekly  dose   being  used  in type  1 and many situations of type  2
                 and  oral version coformulated  with  the absorption   diabetes, it has to be combined with other drugs to
                 enhancer  sodium N-[8-(2-hydroxybenzoy amino]      counter its side effects and therapeutic efficacy. One
                 caprylate. The phase  2 dose-finding  study showed   such  combination  in pipeline, is  iGlarLixi  (100/33)a
                 HbA and  weight reduction  were  of similar  magni-  fixed-ratio  combination  of insulin glargine  100  u/ml
                     1c
                 tude to that  seen  with  the injectable GLP-1 receptor   and lixisenatide33 mcg/mL, a glucagon-like peptide-1
                 agonist formulations, and there were no red flags in   receptor  agonist, for the  treatment  of type 2 diabe-
                 terms of safety.Phase 3 trials of injectable semaglu-  tes. The mechanisms of action of lixisenatide  and
                 tide have shown that  it has a best  in class  profile   insulin glargine  are  complementary  insulin glargine
                 not just in lowering blood glucose, but also in cutting   lowers basal glucose levels throughout the day while
                 the risk of heart attacks  and  strokes  – the  biggest   lixisenatide  primarily  targets glycemic control  espe-
                 long-term danger for diabetes patients. A phase 2   cially  PPG excursions.  In clinical trials,  iGlarLixi  was
                 study(Novel  Oral  GLP-1  Receptor  Agonist  Lowers   associated with significantly greater reductions from
                 A1C and Weight in Type 2 Diabetes) randomized 632   baseline in glycated hemoglobin A  (A1C) than iGlar
                                                                                                    1C
                 adults with type 2 diabetes (mean duration, 6 years)   or lixisenatide alone. Reductions in postprandial glu-
                 to oral  semaglutide (2.5, 5, 10, 20, or  40 mg once   cose were  also greater  with  iGlarLixi  than  with  iGlar
                 daily.  Results  of  this studydone byChristophKapitza   or lixisenatide.  Gastrointestinal  events, frequently
                 et al concluded that treatment with semaglutide may   associated with lixisenatide, were less common with
                 offer a protective effect  on  beta  cell function.  Oral   iGlarLixi. 5
                 semaglutide significantly reduced not  only A1C but   The  IDegLira ,acombination  product of insulin de-
                 also  fasting  plasma glucose  and body  weight.  This   gludec injection and liraglutide injection intended for
                 novel drug  with side  effect profile  reported  only  in   the market will  be provided  in a pre-filled  pen  con-
                 GIT is awaiting approval from FDA. 4               taining an IDeg/liraglutide ratio of 100 units/3.6 mg


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