Bill McVicar
Analyst · Cantor Fitzgerald. Your line is now open
Thank you, Elizabeth. Thank you for joining us on the call today. This is an exciting time for Flex Pharma, we’re pleased to be sharing this very encouraging although unexpected data that represents clear signs of the anti-cramping activity of Flex 786, our dual trip channel activator and for the first time in patients with severe neurological disease. From the small study, we’d expect it to learn about inter and intra subject variability. To confirm our power assumptions for the ongoing U.S. trial but we were pleasantly surprised to learn much more. Just to remind you, we had started study Australia in ALS patients in 2016. This study was a randomized double-blind placebo controlled cross-over study to evaluate efficacy and tolerability of Flex-787 in patients with motor neuron disease. This study design in patient inclusion criteria are shown on slide number three. However, we announced in July of this year that this Australian ALS study was terminated early because enrollment was slow due to the small population in Australia, 23 million with only 800 ALS patients diagnosed per year spread over a large geographic range. So, we decided to focus our resources on the larger, more robust US ALS trial which is now enrolling and terminate the Australian ALS study early. A summary of the results of the trial are shown on slide number 4. In eight patients who completed the trial per protocol, Flex-787 treatment resulted in a statistically significant PE less than 0.05% reduction from baseline in both cramp associated pain intensity and stiffness relative to the placebo control. These end points were based on daily assessments by the patients using a numerical rating scale or NRS. Strong and consistent trends were demonstrated on multiple endpoints including percent reduction in the number of cramps from baseline, PE 0.08 increase in cramp free days from baseline, PE equals 0.09 and improvements in both the patients and the clinician's global impression of change both with PE values of 0.06. We are very encouraged by the consistent positive impact of Flex-787 across multiple efficacy endpoints related to cramping and the associated pain, particularly given the small number of patients completing the study. These data, the first in patients with serious neurological disease indicates the potential of chemical neuro-stimulation with FLX-787 to alleviate cramps and cramp related symptoms. Flex was generally well tolerated in this patient population. These data demonstrate the potential for FLX-787 to benefit ALS patients who suffer from severe debilitating cramping in our ongoing larger more robust Phase 2b trial the commend study. We are excited to advance the development of FLX-787 under fast-track designation or ALS related cramping and look forward to 2018 with data readouts expected in MS, ALS and CMT. Slide 5, summarizes the efficacy results from patients completing both crossover periods per protocol. In these data we can see the effect of the drug on cramping and ALS payments in the first two rows on the slide. We have included the running data because each subject was compared to their own baseline behavior, every subject is their own control. Anti-cramping effects seen were number one, FLX-787 showed a medium 31% reduction in cramps from baseline versus a 1% reduction for patients while on placebo control. patients had a median 4.4 cramp free days versus 0 for the placebo control. And as mentioned before FLX-787 demonstrated a statistically significant P less than 0.5% reduction from baseline in both cramp associated pain intensity and stiffness relative to placebo control based on daily assessments by numerical rating scale. Slide 6, provides details on the clinical and patient global impression of change endpoints. The FDA has told us that demonstrating a decrease in the frequency or cramping is likely an acceptable endpoint for registration, but they would also need to see that this change was meaningful to patients. For example, using a payment reported outcome, the PGIC data on slide 6 is just that kind of endpoint and we see from these data that 50% of patients reported feeling an improvement following FLX-787 treatment compared with 12.5% of those receiving the placebo control. The clinicians were also blind and have no way of knowing which treatment the subject was receiving evaluated the patients and also reported improvement in 50% of subjects following FLX-787 treatment compared to 0% for the controlled group. This consistency between the patient's perception of improvement and the clinicians is encouraging. Slide 7, is the reminder of the design of our ongoing Phase 2b ALS and CMT studies which were designed to deliver robust results. The commend trial which focuses on ALS has many advantages over our smaller exploratory Australian ALS study including longer run in and treatment periods, a higher dose 30 milligrams three times a day, a parallel design and of course a much larger population from which patients can be recruited. The Phase 2 Commend trial is currently enrolling and is designed to evaluate FLX-787 in approximately 100 patients with motor neuron disease who suffer from frequent cramping. This randomized controlled, double blind parallel design trial in the US includes 28 days run in period to establish a base line in cramp frequency. Patients are then randomized to 30 milligrams of FLX-787 administered three times a day or control for 28 days. Patients will be evaluated for changes in cramp frequency as the primary endpoint with a number of secondary endpoints including cramp related pain, the PGIC, CGIC and spasticity. The Commit trial in CMT patients is essentially identical in size, scope and design but is in frequently cramping Charcot-Marie-Tooth patients. Consistent with our goal to deliver high quality data from well-designed trials in a timely manner, these two robust Phase 2 studies will provide important data readout in the third quarter of 2018. And now I'll ask our Chief Medical, Officer Tom Wessel who was a treating neurologist for many years to comment on the next few slides. Tom?