Pablo Lapuerta
Analyst · Citi
Thank you very much, Lonnel. As you know sotagliflozin is a dual inhibitor of SGLT1 and SGLT2 for the treatment of diabetes. SGLT2 is important and leading to the reabsorption of glucose in the kidney, by inhibiting SGLT2 inhibition causes urinary glucose excretion. What is unique about sotagliflozin, it is the first SGLT 1 inhibitor. By inhibiting SGLT1 in the gastrointestinal tract at galactose absorption of glucose into the body and that is a profile that we felt is very well suited for both Type 2 diabetes and Type 1 diabetes. On the next slide, we have sotagliflozin Phase III program and type 1 diabetes studies. In tandem 1 has already been reported, in tandem 2 and in tandem 3 we will be reporting in the months ahead. And we’re very excited that an ambitious Phase 3 program for Type 2 diabetes is being initiated by Sanofi in this quarter. Next slide. This study is in tandem 4, it’s a Phase II study, but it’s a small dose ranging study. The purpose was from a registrational standpoint to confirm that we have selected appropriate doses 200 milligrams and 400 milligrams sotagliflozin for our Phase III gram in tandem 1, tandem 2 and in tandem 3 and Type 1 diabetes. Another purpose of this study was to get mechanistic data that’s difficult to obtain in large Phase 3 programs. Mechanistic studies that could support the SGLT1 and SGLT2 actions of sotagliflozin. So, secondary outcome measures in this study included two hour post-prandial glucose in all patients following a standard meal. Body weight which we have not yet reported from in inTandem1, 2, or 3, and 24 hour urinary glucose excretion, which can be difficult to collect. We also included fasting plasma glucose. Another measure that’s really interested us based on our Type 2 diabetes experience was a change from baseline at 12-weeks in systolic blood pressure. For the next slide, we have the outline of this study. As a dose ranging study, we had placebo 75 milligrams, 200 milligrams and 400 milligrams of sotagliflozin all once daily. Another thing to note is that we had placebo running period. The reason to do that is after screening we wanted to ensure that patients could comply with the study requirements and take the drug appropriately. So we had both placebo running period and then during the 12-weeks of treatment at placebo arm. Slide 9 has more about the trial design. This included 141 patients from sides in North America, the primary end point was a change from baseline in A1C, the intent was to see dose related changes, supporting the 200 and 400 milligram doses. The 75 milligram dose was also included, it’s one of the study on it. This study do not have the insulin optimization program that we described previously for our inTandem1. However, consistent with the needs of diabetic patients, insulin injections were allowed in during the 12 week treatment period. The study was double-blind. Patients had to have type 1 diabetes, for at least one year. They could be either no a pump or multiple daily injections. They were adults with A1Cs between seven to 10% with relatively normal renal function. The next slide has the baseline characteristics of the patients. You can see that this was a small study with approximately 140 patients that’s 35 to 36 in each treatment arm. The age was in the mid 40s, the population consistent with the prevalence of Type 1 diabetes that’s mostly white. The population had endured Type 1 diabetes for over 20 years and still had A1Cs between 7 and 10% being unable to overcome the limitations of insulin. The blood pressures were normotensive in this population by and large. However, we will present data in the sub-group of patients that had elevated systolic blood pressures. The baseline A1Cs were well matched for a study of this size with an A1C of about 8 in each treatment arm. The primary endpoint on Slide 11 was met. There were dose related changes in A1C on 75 milligrams that did not reach statistical significance, but 200 milligrams and 400 milligrams that’s statistically significant reductions compared to placebo and hemoglobin A1C at 12 weeks. This supported the selection of doses for the Phase 3 Type 1 diabetes program. Slide 12 has postprandial glucose. This is an important measure. And with the inhibition of SGLT1 in the gastrointestinal tract, we expected to see a good reduction in post-prandial glucose. There was a dose related reduction, the maximum being seen on the 400 milligram dose and we were encouraged by the magnitude of the 49 milligram, almost 50 milligram per deciliter reduction in post-prandial glucose on 400 milligrams. Slide 13 shows how that reduction was achieved. A challenge for patients with Type 1 diabetes is keeping post-prandial glucose below 180, that’s the target goal. And reality is that many patients with Type 1 diabetes have post-prandial glucoses in the 200s. You can see that at baseline in all treatment groups, values of 200 or more. However, at week-12 the main unchanged on placebo was lower on sotagiflozin and meaningfully lower on the 400 milligram dose. And four if you look at the medians, on the 200 milligram dose, at least 50% of patients were at goal keeping their post-prandial capillary glucose below 180. And the mean was – and medians were encouraging for the 400 milligram dose with values of 160 and only 149 for the Median. Slide 14 has the body weight. This is the first time we’ve seen body weight at 12 weeks in Type 1 diabetes with sotagliflozin. And there was an increase of one kilo in patients on placebo that speaks to the difficulty of managing insulin, which induces body weight. There were reductions that were dose related on sotagliflozin. The largest reductions being on the 200 milligram and 400 milligram dose, reaching statically significant. And being relevant to patients at approximately five pounds in each of those treatment arms. Slide 15 has urinary glucose excretion. It’s difficult to obtain quality 24-hour urinary glucose excretion data. This was obtained in this study and this is the first time we’ve reported it in Type 1 diabetes. Our aim is to identify relatively modest urinary glucose excretion. And by relatively modest, I mean that the 24-hour urinary glucose excretion we’ve seen reported within that selective SGLT2 inhibitor has been an increase of 115 grams of glucose. Here we saw only 58 grams and 70 grams of glucose with the 200 milligram and 400 milligram dose. That's approximately 40% to 50% lower than what we've seen reported with a selective SGLT2 inhibitor. Slide 16 has systolic blood pressure. We were encouraged by the systolic blood pressure results. Not many patients had systolic blood pressures above 130 at baseline in this population with Type 1 diabetes at a mean age in the 40s. However, in this subgroup that we prespecified and analyzed, there were dose related changes in systolic blood pressure at week 12 and they reached a maximum of 15.8 millimeter reduction in systolic blood pressure with the 400 milligram dose. Despite the sample size that achieved statistical significance with a P value of 0.01 compared to placebo. And that's a placebo subtracted difference of 14 millimeters of mercury, that's something we have not seen reported with any selective SGLT2 inhibitor. We believe it's possible that this magnitude of blood pressure reduction could relate to the SGLT1 mechanism of action and we look forward to exploring this more in our Phase III program. One final thing to note about the systolic blood pressure reduction is that this 14 millimeter difference compared to placebo is the same difference we saw in our Type 2 program, that we reported out in our Type 2 dose ranging study. Slide 17 has the overall safety results. The incidence of adverse events was 50% of patients experiencing an adverse event on placebo, and only 49%, 29%, or 34% experiencing adverse events on sotagliflozin. The incidence of serious adverse events was identical in each of the treatment arms. There were few discontinuations being observed only on placebo and 75 milligrams due to adverse events and there were no deaths in the study. Slide 18 has the adverse events of special interest. Diarrhea was not an issue in the study, nausea was not an issue, genital mycotic infection were few and none of these adverse events resulted in discontinuation of study drug. Another important safety event is diabetic ketoacidosis. Consistent with inTandem1, this small dose ranging study had a low incidence of DKA. There were no events on placebo during the 12 weeks on 75 milligrams or 200 milligrams. There was only one event on 400 milligrams consistent with the inTandem1 experience. Of note, the one patient with DKA was on an insulin pump. There were a couple of other incidences of DKA during the placebo running period that I described earlier. These two events of DKA during the placebo running period highlight that DKA is part of living with Type 1 diabetes. On Slide 20, we have the incidences of documented and severe hypoglycemia. Documented hypoglycemia was based on a blood glucose value equal to or less than 70 and it was common part of the reality of type 1 diabetes. However severe hypoglycemia was uncommon and these low rates are consistent with inTandem1 clinical trial experience, only one subject discontinued due to hypoglycemia and that was under 75 milligram dose. Overall, this Phase II dose ranging study showed that 200 milligram and 400 milligram of sotagliflozin provided statistically significant and clinically meaningful reductions in A1C. This confirms the dose selection that we made for the Type 1 Phase III program in the studies inTandem1, inTandem2 and inTandem3. Equally important, we see evidence in terms of the mechanism of action of sotagliflozin that supports its profile of dual inhibition of both SGLT1 in the gastrointestinal tract and SGLT2 in the kidney. Evidence of SGLT1 inhibition in the gastrointestinal tract is suggested by a large post-prandial glucose reduction in particular with the 400 milligram dose. Just as we've seen in Type 2 diabetes relatively modest urinary glucose excretion value of between 58 and 70, which are much lower than what's been reported in the literature with selective SGLT2 compounds. We see for the first time encouraging reductions in body weight relating to the SGLT2 effect and an encouraging reduction in systolic blood pressure, in particular in the 400 milligram dose with a 14 millimeter reduction compared to placebo. The safety profile was favorable and supports what we reported earlier in the much larger study inTandem1. Thank you very much and I'll now turn the call over to Jeff Wade.