Alfred E. Mann
Analyst · JMP Securities
Thank you, Hakan, and good afternoon, ladies and gentlemen. We, at MannKind, are pleased to share with you the significant results of the Affinity study. As you know, the protocols of these trials were carefully crafted after discussions with the FDA and were specifically designed to address the questions raised by the FDA in their complete response letter. We are very pleased that we have met the primary endpoints of both these studies and have additionally shown important advantages in the secondary objectives. We are planning several Phase IIIb and IV studies in order to explore ways in which to further differentiate AFREZZA, but that is a topic for another time. We appreciate your patience and understanding for the postponement of our quarterly conference call to enable us to include a discussion of these Affinity trials. Before I discuss the trials, I want to acknowledge and praise the MannKind team that conducted these sophisticated studies, completed them on time, locked the immense amount of data very quickly and analyzed the key information in order to enable us to share preliminary results with you today. I congratulate our MannKind employees and our CROs, who successfully completed this work on virtually the exact schedule laid out almost a year ago when we neared the end of enrollment. Now let me add some comments and perspective on the Affinity results. There were 2 primary objectives for the Affinity 1 trial conducted in type 1 diabetes. The primary efficacy point was to compare the A1C lowering effect of AFREZZA to that of an injected rapid-acting analog, in this case, NovoLog, in both cases, along with Lantus as the basal insulin. We met the endpoint of demonstrating non-inferiority to have confirmed that AFREZZA can reduce A1C levels at least as well as the best-selling prandial insulin. But that is where the similarities between AFREZZA and NovoLog end. In Study 171, we saw clear advantages among these differences in the effect of the prandial insulin on fasting blood glucose levels. We saw a significant decrease in the AFREZZA arm compared to an increase in the NovoLog arm. Moreover, this improvement in fasting glucose levels in the AFREZZA group disappeared completely during the follow-up period when these patients switched back to NovoLog, indicating that this lowering effect was attributable to AFREZZA. More importantly, these improvements in glucose measurements were associated with a significantly lower risk of hypoglycemia. As you heard from Bob, we saw a lower risk of mild, moderate and severe hypos, as well as hypos with the blood glucose levels observed to be less than 36 milligrams per deciliter. When we compared event rates by week as patients progressed through the titration algorithm, we saw that the AFREZZA group consistently experienced fewer hypos than did the NovoLog group. We also looked at the event rates for hypos on the basis of the ending A1C level at week 24, and again, the AFREZZA group reported fewer hypoglycemic events than did the comparator group. Another area in which AFREZZA distinguished itself from NovoLog was weight. NovoLog patients gained weight during the treatment period, while AFREZZA patients remained at baseline levels or even lost weight. So study A1C is really a safety story that tells type 1 patients and presumably insulin-dependent type 2 patients that AFREZZA can reduce their A1C levels at least as well as NovoLog, but with the additional benefits of lower fasting blood glucose levels, a lower risk of hypoglycemia and no weight gain. That is a compelling story. We've been telling it for a while, but that story becomes even more compelling now that we have demonstrated these advantages with the Dreamboat inhaler. Now let me turn to the second objective of the Affinity 1 trial, which was the comparative performance of AFREZZA with the Dreamboat device to that with the MedTone inhaler. This comparison was intended to provide a bridge to the pulmonary safety data from our earlier studies. In Study 171, we observed that the pulmonary function results with the 2 devices were virtually identical, so we regard the bridge as having been established. Just to put that in perspective, with this 6-month trial, we are now able to support the safety of the Dreamboat inhaler by drawing all of the safety data from our earlier development program using the MedTone device, including not only a 2-year pulmonary safety study involving 2,035 subjects, but also the thousands of chest CT scans and tens of thousands of pulmonary function tests that were administered in other Phase II and Phase III clinical studies. The consistent finding across all these studies is that the use of AFREZZA is associated with a clinically insignificant decrease in lung function that appears at the onset of therapy, it does not progress during therapy and it resolves fully upon cessation of the therapy. All in all, it is clear to me that Affinity 1 has validated AFREZZA as a better prandial insulin for use in basal/bolus therapy for type 1 and surely also for insulin-dependent type 2 patients. But if you've been following my commentary over the past few years, you know that I'm not really surprised by this outcome. Now let me talk about Affinity 2. In many ways, this was a very difficult study to successfully conduct, so I'm extremely pleased that we got such a clear and statistically significant result in insulin-naive type 2 patients, who, unlike insulin-dependent patients, can more significantly improve their glycemic control by being more attentive into diet and exercise and lifestyle factors. Our protocol went to considerable lengths to control these factors by providing extensive diabetes education to all the patients prior to the run-in phase, including topics such as nutritional counseling; incorporating physical activity into lifestyle; using medications effectively, monitoring blood glucose and using measurement to improve glycemic control; preventing complications through risk reduction behavior; and goal setting for daily living. During this period, we also provided glucose meters to all the subjects and instructed them on the proper technique for obtaining self-monitored blood glucose measurement. As might be expected, the patients in Affinity 2 responded to this education and monitoring with improved A1C level. Even during the running period before a single patient was randomized, A1C levels declined in all patients. Nevertheless, we are able to demonstrate that adding AFREZZA to an oral treatment regimen causes a statistically significant further decrease in A1C level. I won't speculate how this signing would translate to a real world setting in type 2 patients that are not nearly as attentive to diet, exercise and glucose monitoring, but in the controlled setting of this clinical trial, AFREZZA passed a difficult test with flying colors. Not only did AFREZZA meet the standard of superiority in reducing A1C levels, but we saw a clear difference in a number of patients that reached the ADA, the American Diabetes Association, and the American Association of Clinical Endocrinologists' goals for A1C levels. Twice as many AFREZZA patients reached the ADA goal of 7% or less than did the oral group, and almost 4x as many AFREZZA patients reached the AACE goal of 6.5% or less than did patients on the comparator group. Still another clear difference between the 2 treatment arms was in the 7-point blood glucose profile collected over the course of the study. These profiles show glucose measurements at 7 different time points throughout the day: before breakfast, 90 minutes after breakfast, before lunch, 90 minutes after lunch, before dinner, 90 minutes after dinner and at bedtime. At bench line, these profiles had the standard sawtooth-like appearance typically seen in diabetic patients whose glucose levels swing wildly up and after each meal and then down again as their medication attempts to control postprandial excursion. What we saw in the AFREZZA group was that the 7-point profile became much flatter and much lower overall as these patients gained control over their postprandial glucose excursions. These significant improvements with AFREZZA were observed early in the treatment phase and became more pronounced the longer the patients remained on AFREZZA. Tellingly, at the follow-up visit after all patients had returned to a regimen of oral therapy alone, the 7-point profiles for all the patients once again displayed the large peaks and valleys in their glucose levels throughout the day. As we expected, we saw more mild and moderate hypoglycemic events in the AFREZZA group in the Affinity 2 trial. After all, this was a trial that added a potent glucose lowering agent insulin to a background regimen of oral medications, some of which can also cause hypos. However, it was reassuring that severe hypos did not occur in a significantly greater number of patients or at a significantly higher rate than in the comparator group. Moreover, no patient discontinued the trial because of hypoglycemic events. Put another way, it would appear that the benefits we saw in this trial of early-stage type 2 in terms of glycemic control were not outweighed by an increased risk of hypoglycemia. We continue to see the ultrafast kinetics and dynamics of AFREZZA as providing far more physiologic prandial insulin therapy that is so conveniently and easily delivered. Patients have widely expressed enthusiasm for the non-injection modality. In all of our clinical trials involving a total of more than 6,700 subjects, about 4,000 of which were administered with AFREZZA, we've seen nothing to raise concern for safety with AFREZZA. In summary, the Affinity trials have demonstrated significant advantages, suggesting the opportunity for improved glucose control throughout the entire spectrum of diabetes. I am excited and proud of what our team has achieved. We attribute many of the benefits AFREZZA has demonstrated in the Affinity trial to faster onset and a shorter duration of action, which portends to create a new class of ultrarapid-acting insulin, and AFREZZA will be the first product in this new category. I continue to believe that AFREZZA will likely become a valuable anti-glycemic therapy throughout the vast early-stage type 2 market, as well as becoming a premier prandial insulin in basal/bolus therapy for type 1 and late type 2 diabetes. And now, let's open the call to questions. Operator?