Sunil Agarwal
Analyst · Wedbush Securities. Your line is open
Great, thank you Shalini. I will now provide an update on our clinical progress over the last several months. As Emil mentioned we’ve recently released data from two separate analysis from our Phase II study of KRN23 in pediatric patients with XLH. The first - was the 16 week analysis in 36 patients that showed a all patients had increased within serum Phosphorus from baseline after treatment with KRN23. At the end of the 16 weeks, the majority of patients in both the monthly and by weekly dosing groups reached the normal range of serum Phosphorus. Additionally the number of patients achieving the normal range continued to increase after week 16 as patients continued to have their does high rated as needed. Increases in TMP, GFR and vitamin D are also observed in the 16 week analysis. Overall, these results met our expectations and are consistent with the data generated to date in adult XLH patients. From a safety perspective, no serious adverse events have been reported and no patients have discontinued. The most common adverse events have been injection side related and all of them are deemed mild in severity. No significant changes in serum calcium, urinary calcium or parathyroid hormone were observed. A no patients had serum Phosphorus levels above the upper limit of normal. The second set of data included the first interim look of KRN23 impact on the underlying bone disease in these patients. The analysis included X-ray data from the first 12 patients evaluating their degree of rickets, via the fracture rickets severity score. The mean rickets score decreased by 58% going from 1.4 at baselines to 0.6 at week 40. Eight out of 11 patients with rickets at baseline demonstrated an improvement of which three patients no longer exhibited radiographic evidence of rickets at weak 40. Of the 12 patients, six received by weekly dosing and six received monthly dosing. One patient in the biweekly dosing group did not present with the radiographic evidence of rickets at baseline, and was excluded from the analysis. All five out of five patients in the biweekly dosing group demonstrated improvement in rickets, the mean base line rickets score was 1.5 and changed to 0.3 at week 40 representing an 80% reduction in the biweekly dosing group. Of the six patients in the monthly dosing group, three out of six demonstrated improvement in rickets. Two patients did not show a change, and one patient worsen by 0.5 points. The mean baseline score was 1.3 and changed to 0.8 at week 40 representing a 38% reduction in rickets score in the monthly dosing group. Overall, these interim data are encouraging as they are the first indication that KRN23 may improve rickets beyond what can be achieved with standard of care. No series adverse events were reported and no patients have discontinued. Mild injection [indiscernible] were the most common adverse events. Pediatric Phase II data in 36 patients at 40 weeks are expected in Q4 this year. We are also expanding the pediatric trail to a total of approximately 50 patients and expect 40 week data on all 50 patients by mid 2016. The additional 40 week data will include rickets as well as safety and pharmaco dynamic for the dynamic results. Prior to having the 12 patient 40 week analysis, and in meeting with the EMA, the European Agency indicated that a conditional approval filing may be possible based on positive 36 patient, 40 week pediatric data and data from the completed Phase I, II and ongoing Phase II extension studies in adult XLH patients. Confirmatory studies would be required to maintain and convert any such conditional approval to full approval. Based on FDA and EMA feedback, we plan to initiate a Phase III program in adult XLH patients by end of year, which will include two studies. The first of the pivotal Phase III randomized double-blind placebo control study of KRN23 versus placebo with approximately 120 patients. Serum prosperous is the primary endpoint at week 24 and the brief pain inventory will be a key secondary end point all in week 24. The second study will be a smaller open label study in 10 patients evaluating osteomalacia, pre-impose treatment with KRN23 via bone biopsy. We are encouraged about the recent progress with the KRN23 program; we plan to follow-up with both the EMA and FDA to gain clarity on the next steps in the development program. Moving on to triheptanoin, several data points are expected to be released by the end of 2015. First will be compassionate use data and in infant FAOD patients with severe cardiomyopathy. At the SSIDM conference in September, five case reports will be presented many with life threatening disease despite treatment with the standard of care medium chain triglyceride oil. Data from our 29 patients, Phase II study of triheptanoin in a broader and older FAOD population will be released later this year. The study is a learning study, and as measuring a wide range of muscular skeletal, liver, and cardiac endpoints with a goal of determining, the best signals of activity to further evaluate in a potential pivotal trail. In interim analysis from our ongoing Phase II, study of triheptanoin and Glut1 Deficiency Syndrome is also planned around year end 2015 or early 2016. The primary focus of the study is seizure manifestations of the disease. Based on the positive investigator responsive trial results in the movement disorder manifestations of the disease presented at AAM earlier this year we are in the planning stages of a second company sponsor studying Glut1. The plant study design is a randomized double-blind placebo controlled crossover study. We plan to discuss this study design with the FDA by year end. The final two brief updates are for our most two advanced programs. First for rhGUS, our pivotal Phase III study is fully enrolled with 12 patients as of June 2015. The top line data are expected in mid of 2016. In addition to this Phase III study, a few weeks ago we initiated a Phase II study in patients under five years old with MPS 7. The study will include patients with the severe infantile presentation called non-immune hydrops fetalis. Interim data from this study are expected in late 2016. We are also now treating two infant MPS patients under named patient programs one in France and one in Turkey. We will continue to evaluate named patient treating requests as they come in, the next and final program is Aceneuramic Acid Extended Release or ACR, we are currently enrolling GNE Myopathy patients in the pivotal Phase III study that trial kicked off in May of this year and it is expected to report data in late 2016 or early 2017, the primary end point is a composite of upper extremity muscle strength at week 48, This is the same endpoint used in Phase II which showed a preservation of upper extremity muscle strength over 48 weeks. Based on the Phase II data, we intend to file for conditional approval in Europe this year, I’m pleased with the milestones our team has reached thus far in 2015, I look forward to updating our investors, the physicians we work with and the patients we serve as we generate more data and advance our pipeline. I will now hand it back to Emil.