Thank you, Rob and good afternoon, everybody. Let me begin with our pivotal Phase 3 IMPALA study of Molgradex, our inhaled GM-CSF for the treatment of autoimmune PAP. First, as a reminder, as we already disclosed earlier, our IND was approved by the FDA in February around for the expansion of the IMPALA study into the US as well as an increase of the sample size from 90 to 135 patients based on a blinded interim check of variability in two key secondary implants. As of the end of Q4 2017, we had enrolled a total of 80 patients. Subsequent to that, during the first quarter of this year, we enrolled an additional 16 patients, ending the quarter with a total of 96 patients. So in order to enroll the remaining 39 patients by the end of Q3, the quarterly enrolment rate will need to increase slightly. We expect to achieve this through continued efforts at all of our original sites and in particular through the activation of up to eight sites here in the US as well as up to nine new sites in South Korea, Australia and several European countries. Some of these sites have already been initiated and altogether, the new sites will almost double the number of sites to a total of 39. Looking at our current projections, by country and by site, we do remain optimistic that we will achieve our role of completing enrolment by the end of the third quarter with top line data expected in the second quarter of 2019. Next, I would like to spend a few minutes introducing you to a new study that we have recently initiated, called IMPALA-X, focusing on patients who have completed the 12-month IMPALA study. IMPALA-X is an open label, safety extension study that fulfills our protocol commitment to provide continued access to the study drugs for patients completing the IMPALA study and also allows us to collect long term safety data beyond 12 months. We plan to start the study in the majority of our sites in a rolling fashion, as patients start to reach the end of the main IMPALA study. Some of the key aspects of the IMPALA-X study are as follows. First of all, the dosing is the same as in the open label portion of the IMPALA study with the week on, week off alternating regimen. Patients can continue participation in the study for up to three years. We will primarily focus data collection on safety parameters and will also measure many of the efficacy endpoints of the IMPALA study to assess maintenance of the treatment effect in responding patients. While very early still with only two patients enrolled, we are very encouraged by the high interest toward the study and thereby toward the continuation of the study drug administration. Going forward, we believe the enrollment metrics of this study may provide some very interesting early insights into the level of satisfaction with Molgradex as well as further information relating to the desirable duration of treatment. So moving on, next, I would like to update you on our Phase 2a OPTIMA study of Molgradex for the treatment of NTM lung infection. We initiated the study in line with our guidance in March and since then, we have had a very active month and a half with more than a dozen screenings and four patients who have already started treatment. In this study, which is now the last time from screening to enrollment, is typically quite long due to the slow culture times for NTM. As we've outlined previously, we expect to complete enrolment of all 30 patients by Q3 of 2018 and plan to report top line data in the second quarter of 2019. However, since OPTIMA is an open-label study, there is a possibility that we would provide some interim results already by the year end, depending on the enrolment and other factors. So what makes the study really exciting is that, if Molgradex works like we expect in NTM, we do believe this could represent the beginning of a paradigm shift in the treatment of refractory lung infection with localized stimulation of the innate immune system. In other words, with an anti-infective immunotherapy. At best, this could open up a whole new world of treatment opportunities either with or without concomitant use of traditional anti-microbial products. And so finally, I would like to provide you with a brief update of our pivotal Phase 3 AVAIL study of AeroVanc, our inhaled vancomycin for the treatment of MRSA lung function in cystic fibrosis. At the end of September last year, we initiated the study in line with our guidance and enrolled our first nine patients during Q4 of 2017. Subsequent to that, during the first quarter of this year, we enrolled an additional 53 patients for a total of 62 enrolled out of the required 200. The study is currently being conducted at more than 70 clinical sites across the United States and Canada with a few more sites still being added in the current quarter. The total enrollment number as well as the current rate of enrollment are certainly encouraging and in fact slightly exceed our interim goals. Enrolment so far include subjects of all ages, whereas the most relevant metric to follow is our primary analysis population of the younger patients, 6 to 21 years of age. This population comprises 150 subjects, 26 of whom have already been enrolled by the end of the first quarter. With almost all sites now enrolling, we have already observed a nice increase in the enrolment rate of the younger subjects too and we expect the completion of the adult enrolment this month as well as the approaching summer to further enhance the enrolment of the younger subjects. Therefore, we remain optimistic that we will continue to meet our enrolment targets and we maintain our guidance for enrolment completion of AVAIL in the first quarter of 2019 with top line data expected therefore in the second half of 2019. So with that, I would like to hand over the call to Dave who will briefly review our first quarter financial results. Over to you, Dave.