Thanks Alan. Appreciate it and thanks to everyone for joining our fourth quarter earnings call. Before I move into the commercial review, just a reminder that I will be making forward-looking statements. Let me again start with a high-level overview of our commercial strategy and then I will go into more details as we discuss specific slides. From a commercial strategy perspective, we believe that NERLYNX can benefit patients in the metastatic setting, but we remain heavily focused on early-stage breast cancer. We do not have direct competition in the extended adjuvant setting and believe that there remains significant unmet need, especially for patients who are deemed to be at higher risk reoccurrence. We want to see NERLYNX play a larger role in helping patients reduce derisk a reoccurrence and avoid metastatic disease. We believe NERLYNX continues to be promotionally sensitive. Our sales and marketing teams are working hard to expand their reach and frequency, both with personal and non-personal promotion. ACP calls in the fourth quarter increased about 12% year-over-year with about 80% of those calls being live interactions. In addition to pure call activity, we are using internal and external data to try and improve our abilities to engage with clinicians at the right time, given the various treatment decisions and duration of therapies. Finally, as a commercial organization, we remain committed to being more efficient and effective with our resources. We will continue to adapt to the changes in the business and the needs of the broader Puma organization. Let me now transition to some of the commercial slides, where I will provide some additional specifics around performance. Once I have finished, I will turn the call over to Maximo for a more detailed review of our financial results. Turning to slide 3. Slide 3 provides an overview of our distribution model. Now this model has not changed and remains separated into two distinct channels, the specialty pharmacy channel and the specialty distributor channel. We do see quarterly fluctuations, but the majority of our business continues to flow through the specialty pharmacy channel. In Q4, about 74% of our business went through the specialty pharmacy channel and the remaining 26% went through the specialty distributor channel. As a comparison, this compares to the 80% specialty pharmacy channel and 20% specialty distributor channel that we reported in Q3 of 2023. Turning to slide 4. NERLYNX's net revenue in Q4 2023 was $53.2 million, which is a $1.6 million increase from the $51.6 million we reported in Q3 of 2023, and about a $500,000 reduction from the $53.7 million, we reported in Q4 of 2022. Inventory changes will impact these comparisons, so let me provide some additional information here. In Q4 2023, we estimated that inventory increased by about $2.1 million. As a comparison, we estimate that inventory increased by about $600,000 in Q3 of 2023 and increased by about $2.6 million in Q4 of 2022. Turning to slide 5. Slide 5 shows Q4 2023 ex-factory bottle sales and also provides both a year-over-year and a quarter-over-quarter comparison. In Q4 of 2023, NERLYNX ex-factory bottle sales were 2,881, which represents a slight increase of about 0.2% quarter-over-quarter and a 13% decline year-over-year. Let me again provide more specifics around the inventory impact, which is also included at the bottom of this slide. We estimate that inventory increased by about 127 bottles in the fourth quarter of 2023. As a comparison, we estimate that inventory increased by about 164 bottles in Q4 of 2022 and increased by about 32 bottles in Q3 of 2023. Now let me share some additional metrics and insights into our fourth quarter performance. In Q4, we saw new patient starts or NRx declined about 9% quarter-over-quarter and about 25% year-over-year. In terms of total prescriptions, or TRx, we saw about a 7% quarter-over-quarter decline and about a 17% decline year-over-year. Our SD business did grow 10% quarter-over-quarter and about 4% year-over-year. As a reminder, we do not pick up NRx or TRx data in the SD channel. Overall demand decreased 3.1% quarter-over-quarter and about 12.8% year-over-year. As Alan mentioned, Q4 performance was negatively impacted by several factors. First, let me talk about enrollments. Enrollments are a very important leading indicator as they convert into new patient starts, new patient starts turn it into refills, which influence performance in subsequent quarters. Q4 performance was negatively impacted by the decline in enrollments we saw in Q3 and discussed during the Q3 earnings call. Soft Q3 enrollments had a negative impact on fourth quarter new patient starts TRx and overall demand. As I mentioned during the third quarter earnings call, we did see the enrollment trend improve as the third quarter progressed. Early in the fourth quarter, we increased the amount of HCP non-personal promotion. As we have discussed with investors in prior earnings calls, we typically see a decline in enrollments in the fourth quarter as patients delay starting therapy until after the holidays. In Q4, we were pleased to see enrollments continue to improve from Q3, and we saw Q4 enrollments grow 12% sequentially. This is the first time we have seen this growth Q4 over Q3. We are hopeful that this increase in non-personal promotion was a contributor to this enrollment growth. However, we are waiting on additional data before making that conclusion. The second factor that negatively impacted our Q4 performance was the conversion rate from enrollments to commercial new patient starts. In Q4, we saw a decrease in a percent of patients converting from enrollments to new patient starts with the majority of that being driven by an increase in PAP or free goods. We do see quarterly fluctuations in these conversion rates, but in Q4, we had this metric move in a negative direction. Turning to slide 6, excuse me, slide 6 highlights the adoption of dose escalation since launch. We continue to believe that monitoring the adoption of dose escalation is an important metric for NERLYNX patients have started a reduced dose will experience significantly lower Grade 3 diarrhea and are likely to have a lower rate of discontinuation. In Q4, approximately 76% of patients who received commercial drug started NERLYNX on a lower daily dose. We have seen a fairly steady increase in the adoption of dose escalation over the last several years, and I am pleased with the feedback that we receive from customers. Slide 7 highlights the collaborations we have formed across the globe. I have highlighted in red a number of updates since our Q3 earnings call. We are pleased to announce that in late Q3, NERLYNX received regulatory approval in Mexico in the metastatic setting and also received regulatory approval in the United Arab Emirates in the extended adjuvant setting. In addition, in Q1, NERLYNX recently received regulatory approval in Syria, in the extended adjuvant setting and was officially launched in Morocco also in the extended adjuvant setting. We truly appreciate all the efforts put forth by our partners to make NERLYNX available to more patients around the world. I'd like to wrap-up by thanking my colleagues at Puma for their passion and dedication to making an impact on the lives of patients and their families battling cancer. This team is committed to finding ways to be more efficient and effective and adapting to the changing needs of the business. I will now turn the call over to Maximo for a review of our full financial results. Maximo?