Operator
各位好,欢迎参加BeyondSpring公司2017年第四季度及全年财务业绩电话会议。我是Brian,今天会议的主持人。请注意本次通话正在录音。现在,我将把会议交给今天的主持人,Argot Partners的Susie Kim。
Operator
Good day everyone and welcome to the BeyondSpring's Inc. Fourth Quarter and Full-Year 2017 Financial Results Conference Call. My name is Brian and I will be the operator on today’s call. Please be advised that today’s call is being recorded. At this time, I'd like to turn the call over for today's host for today's call, Susie Kim with Argot Partners.
Susan Kim
谢谢。在开始之前,我想提醒大家,今天通话中的发言可能包含前瞻性陈述,涉及BeyondSpring的临床和临床前研发活动、监管计划、行业趋势、市场潜力、合作计划以及财务预测等方面。这些陈述基于当前可获得的信息以及管理层对未来事件的当前假设、预期和预测。虽然管理层认为其假设、预期和预测在当前可获得信息的基础上是合理的,但提醒您不要过度依赖这些前瞻性陈述。公司的实际结果可能与通话中讨论的内容存在重大差异,原因包括公司20-F文件及其他向SEC提交的文件中
Susan Kim
Thank you. Before we begin, I'd like advise that remarks made on today's call may reflect forward-looking statements relating to such matters as BeyondSpring's clinical and preclinical research and development activities, regulatory plans, industry trends, market potential, collaborative initiatives and financial projections, among others. These statements are based on currently available information and management's current assumptions, expectations and projections about future events. While management believes that its assumptions, expectations and projections are reasonable in view of the currently available information, you’re cautioned not to place undue reliance on these forward-looking statements. The company's actual results may differ materially from those discussed during the call for a variety of reasons, including those described in the Forward-looking Statements and Risk Factors section of the company's 20-F and other filings with the SEC, which are available from the Investor section of the BeyondSpring's Web site. It is now my pleasure to turn the call over to Dr. Lan Huang, Co-Founder, Chairman and CEO of BeyondSpring. Lan?
Lan Huang
翻译中...
Lan Huang
Thank you. Ladies and gentlemen, thank you for joining today's call. I'll be giving the main presentation of our update of our pipeline and corporate development and 2017 year-end financials. With me today are Amy Yang, our Controller; and Dr. Ramon Mohanlal, our Chief Medical Officer, who will be available to answer questions during the Q&A portion of today's call. Our newly appointed CFO, Mr. Edward Liu, is still in transition period. Edward had over a decade experience in capital markets, equity financing, merge and acquisitions, global management and investments in healthcare companies. He worked as a Senior Banker at J.P. Morgan and Jeffries and was a partner in a cross-border healthcare focused firm, which is an early investor in BeyondSpring. We are honored to have Edward on board to elevate our company to a new level. 2017 was a remarkable year for BeyondSpring. We're marked by a succession of developments and operational achievements that have put us in position for a number of truly significant clinical and regulatory events in 2018. Just a year following our IPO in the U.S., BeyondSpring is poised for multiple major milestones over the next 12 months that include late stage clinical trial data readout and China regulatory submissions. Specifically, first, for chemotherapy induced neutropenia or CIN, we plan to announce Phase 3 interim analysis data for study 105, evaluating Plinabulin and docetaxel for prevention of CIN in the fourth quarter of 2018, and announce Phase 2 data for the primary endpoint of study 106, evaluating Plinabulin plus TAC which is Taxotere, Adriamycin and cyclophosphamide, also in the fourth quarter of 2018. Pending positive results from these two studies, we expect to submit a new drug application to the China FDA in late 2018 or early 2019 for Plinabulin for a broad target indication of prevention of severe Grade 4 neutropenia induced by oral myelosuppressive chemotherapy. Number two, for non-small cell lung cancer we plan to announce Phase 3 interim data for study 103, evaluating Plinabulin and docetaxel for non-small cell lung cancer in the fourth quarter of 2018 or in early 2019 and submit an NDA to the China FDA in first half 2019. Number three, we also plan to advance two of Plinabulin triple combo immuno-oncology programs into Phase 1 in 2018, and representing our next innovation platform we expect to advance BPI-002 from our immuno-oncology program that we unveiled in late 2019 with a planned Phase 1 study starting in 2019. Before I go into detail on this milestones, I would like to take a moment to explain our strategy and what sets BeyondSpring apart from others in oncology space. BeyondSpring business model is highly scalable integrating clinical and manufacturing resources in the United States and China. Our development strategy is focused first on the China and the U.S markets, and which are the two largest pharmaceutical markets in the world where there exists not only high incidence, but also high unmet medical needs in chemotherapy induced neutropenia or CIN, and non-small cell lung cancer. Our unique R&D approach allows us to take advantage of the comparatively low cost ICH conforming U.S GCP quality clinical development environment in China, which enables us to make rapid clinical progress while realizing substantial cost efficiencies, especially in the field of cancer treatment as 80% of cancer care markets is concentrated in and surrounding three main cities, Beijing, Shanghai, and Guangzhou. Our strategy allows us to access the broad fast-growing and underserved patient populations in China, facilitating faster and high-quality enrollment and patient care. Furthermore, the regulatory process in China and our unique status in that country enable BeyondSpring the opportunity to pursue an expedited approval process, one that we are pursuing with Plinabulin, which I will discuss later on today's call. Our presence in the U.S., as well as the multinational multicenter trial design for each of our registration studies conducted with input from the U.S FDA and in accordance with U.S FDA standards provide us with the foundation to also seek regulatory approval in the U.S. Our U.S submissions are currently targeted for 2019 for CIN following successful completion of studies 105 and 106, and in 2020 for non-small cell lung cancer following successful completion of study 103. We are very fortunate to have some of the world's leading clinical investigators in their field participating in our clinical trials, including the Chairman of the NCCN Guidelines for CIN and non-small cell lung cancer in the U.S and China, and our drug development efforts are backed by our understanding of the pharmaceutical industry clinical resources and the regulatory system in China as well as the U.S. During their careers, our seasoned management team has brought more than 30 innovative drugs including a variety of oncology treatments to the global market. All of this elements create a very strong foundation for success as BeyondSpring makes the turn from a clinical stage biotech company in 2017 toward a highly efficient registration stage development company in a view toward possible commercialization in China as early as 2019. To get there, we look ahead to the multiple data readouts we have planned for Plinabulin later this year. For those who may be new to our story, our first-in-class immune agent Plinabulin is a marine-derived small molecule that is in development for the prevention of CIN and non-small cell lung cancer. Each therapeutic area has a strong need for new innovation to improve patient outcomes and each has billion-dollar market potential. In CIN G-CSF drugs are the current standard of care, but they are characterized by second day dosing regimens and overall safety limitations, including severe bone pain. Despite this, the market is substantial, generating over $8 billion in global annual sales and dominated by the current market leader, Neulasta and NEUPOGEN, despite indications limited to use primarily in the high-risk febrile neutropenia segment which represents just 20% of patients undergoing chemotherapy. Plinabulin is our lead asset and to date has shown very encouraging results in multiple clinical studies for CIN, two of which are ongoing late stage registrational studies, studies 100 and 101 Phase 1 and Phase 2 studies in non-small cell lung cancer. Plinabulin with differentiated mode of action of preserving neutrophil was associated was associated with less bone pain and less hospitalization than when patients received G-CSF therapy. Earlier this year, at the ASCO SITC Clinical Immunooncology Symposium, we presented data from one of the studies, the Phase 2 portion of Study 105, a Phase 2/3 study looking at Plinabulin's effect on docetaxel CIN compared to Neulasta. The Phase 2 portion achieved the primary goal to identify the dose of Plinabulin to advance into the Phase 3 portion of the study with clear dose dependency related to Plinabulin and importantly the data also showed comparable duration of severe neutropenia, DSN, and incidence of Grade 4 neutropenia between the Plinabulin 20 milligram per meter square arm and Neulasta treatment arm. DSN represents how many days patients are in the hospital due to low neutrophil levels and infection. DSN of less than one day is considered clinically meaningful. In the Phase 2 portion of Study 105, DSN was 0.38 days for Plinabulin at 20 milligram per meter square arm, with one dose only 30 minutes after docetaxel in a cycle achieving the target DSN-reduction endpoint. While the sample size is small, this is a promising outcome and the goal is to replicate or even surpass this non-inferiority results in the Phase 3 portion. In two recent surveys conducted by IMS or IQVIA in 2016 and the end of 2017, polling more than 180 physicians in the U.S. who regularly prescribe G-CSF therapy and who were familiar with Plinabulin's clinical data presented to date, doctors expressed excitement for Plinabulin's potentially superior profile for improved ease of use with dosing just 30 minutes after first cycle docetaxel administration and potential in reducing bone pain, an often debilitating side effect that can lead to cancer treatment discontinuation. At the time, physicians surveyed indicated that they could see Plinabulin capturing 20% to 25% of the G-CSF market initially if Plinabulin successfully completed clinical trials and received approval with this product profile and only comparable efficacy to Neulasta or Enbrel. Our objective, of course, is ultimately to show superior efficacy to Neulasta, and these initial survey results were very encouraging and indicate that Plinabulin could be highly competitive in this market under various profile permutation. Recall that G-CSF sales in the U.S. were approximately $6 billion in 2016 with the market leader, Neulasta, accounting for around $4 billion of this market. In addition, Plinabulin has the potential to be used into intermediate-risk chemo market, which is 60% of all chemo patients and where the current therapy is no therapy, except under limited patient-specific circumstances. In the Phase 3 portion of 105, we expect to enroll 150 patients across 55 sites in five countries in 2018, with the primary endpoint of DSN in the first cycle. Secondary endpoints include bone pain and hospitalization. Our CIN program for Plinabulin also includes Study 106, a Phase 2/3 study looking at Plinabulin compared to Neulasta in treating high risk chemo, TAC-induced neutropenia. Although the trial design is similar to Study 105, with the primary endpoint of DSN in the first cycle, the objective of the study is to show superiority with Plinabulin therapy compared to Neulasta. We initiated enrollment in Study 106 last fall in China. The study is progressing well, U.S. and more Western country sites coming online. Our plan is to present interim results in -- on the primary endpoint from the Phase 2 portion of the study later this year. Studies of Plinabulin to date, including studies 100, 101, and 103, have shown a favorable safety profile in more than 300 cancer patients, which, based on discussion with CFDA officials is sufficient for safety database for NDA submission in China. We believe that Plinabulin's differentiated same day dosing profile, which avoids the delayed dosing characterized by Neulasta, and potential for reduced bone pain contribute to an attractive profile that we believe could be highly competitive, if not disruptive, to the CIN treatment paradigm with application in not only high-risk populations, but also the vast and largely under addressed intermediate-risk patient population. Together, results from all preclinical studies with Plinabulin demonstrating efficacy in reducing neutropenia of a variety of chemo with different mechanisms versus taxane, the CMC data and also the clinical trials which discussed above, including the safety database of more than 300 cancer patients, Phase 3 interim data from Study 105, where we look -- with 100 patients enrolled and Phase 2 data from Study 106 are expected to form the basis for our planned NDA submission to the China FDA later this year or early next year for CIN. This accelerated China submission plan is based on guidance issued to the industry by the CFDA late last year that presents an attractive and we believe, viable pathway for Plinabulin toward a much expedited commercialization timeline in China. Under those guidelines, CFDA will consider accelerated or conditional approval based on the clinical efficacy trend and particular focus on novel drugs for life-threatening diseases. We have consulted with CFDA officials, and we believe Plinabulin's profile as a first-in-class therapy for treatment of CIN and non-small-cell lung cancer, coupled with the data generated by the ongoing studies, if demonstrating a clinical efficacy trend, meet this criteria. With respect to our U.S. strategy, we plan to submit with -- the final data readout from the 105 and the 106 studies, which are expected in 2019, setting us up for U.S. NDA submission for CIN next year. We are taking an identical parallel approach for Plinabulin in the non-small-cell lung cancer or NSCLC indication. 87% of 1.8 million annual lung cancer diagnoses worldwide are for non-small-cell lung cancer. Sales of drugs to treat non-small-cell lung cancer in 2017 reached $8 billion worldwide. Checkpoint inhibitors are increasingly used as first-line therapy, but as we know, there are limitations to the scope of patients that they will successfully treat, as they are only effective in 20% of late-stage patients, and there is a large portion of EGFR wild-type [ph] patients, around 70% of Asian patients and 90% of Western patients with non-small-cell lung cancer that we are evaluating whose cancer progresses. For late stage patients, docetaxel remains the standard of care. However, given the lack of efficacy in 90% of these patients, there remains a severe unmet medical need. The target patient population for the combination of Plinabulin plus docetaxel is around 50% of late stage or second-line, third-line patients, including only EGFR wild types and those who failed with checkpoint inhibitors. Our clinical evaluation of Plinabulin plus docetaxel for non-small-cell lung cancer is based on the premise that adding Plinabulin to docetaxel increases anti-tumor activity compared to docetaxel alone while also reducing side effects, such as severe neutropenia. Plinabulin is believed to work in response to docetaxel's tumor antigen generation to activate the immune system by causing dendritic cell maturation and the tumor antigen-expressing T-cells that can attack cancer cells. In non-small-cell lung cancer, measurable lung lesions may provide a good amount of tumor antigen, and our Phase 3 non-small-cell lung cancer study will specifically evaluate patients with measurable lesions. Study 103, a large scale Phase 3 study in 554 patients, evaluating Plinabulin plus docetaxel compared to docetaxel alone as a second and third line treatment for non-small-cell lung cancer is ongoing and are progressing smoothly. Enrolling at clinical trial sites in the U.S., China, and Australia, this study will include EGFR wild type patients and patients with measurable lung lesions. We also include patients who failed PD-1 and PD-L1 treatment and stratified these patients. The primary endpoint is overall survival and secondary endpoint include Grade 4 neutropenia reduction, DOR, ORR, and PFS. We plan to conduct a pre-specified Phase 3 interim analysis in the fourth quarter of 2018 or early 2019, which we expect to provide as part of a planned accelerated China NDA submission soon after. Assuming favorable trends, the primary endpoint of Study 103 is overall survival. The interim analysis is event driven and will look at 146 patient tests. Based on our discussion with CFDA, we plan to show a clinical-efficacy trend that will compare the one-year survival rate for each arm. Secondary endpoints, including Grade 4 neutropenia rate, duration of response, and overall response rates, will be evaluated to potentially show trend consistency. These data are supplemented by a drug safety database comprising data from the more than 300 cancer patients who have received Plinabulin in clinical trials to date. This safety database would also be included as part of our China NDA submission. Assuming we submit the NDAs to CFDA late this year or in early 2019 for CIN and in first half 2019 for non-small-cell lung cancer indications, we could be in a position to receive conditional approvals in China within 6 months following submissions or in 2019, as we are also eligible for accelerated review. Our receipt of the 13th 5-year grant award for Plinabulin and my status as a Thousand Talent Innovator, both from the government of China, facilitate these more rapid regulatory cycles from submission to review. I would note, as example, the record speed of receipt of registrational trial approval, which is the CTA for Study 106, was in 1-month of submission to CFDA in June 2017. This contrasts to the typical CTA submission-to-acceptance time frame of around one to two years. Our U.S. regulatory strategy for non-small-cell lung cancer calls for completion of the ongoing 103 study, with test events in 438 patients, positioning us for a potential NDA submission in 2020. Finally today, just a few words on our early stage pipeline. Preclinical models and mechanism studies have suggested that Plinabulin may have broader applicability in the I/O treatment landscape and specifically, may have additive tumor fighting activity without increasing toxicity when used in combination with other cancer treatments. This premise underpins the focus of our early clinical program. Safety results from two early stage studies were presented at the ASCO SITC meeting in January. In the two investigator sponsored Phase 1 study of Plinabulin in combination with the PD-1 inhibitor nivolumab, no Grade 3 or 4 immune-related SAE were observed, although two patients developed either Grade 1 or Grade 2 IR related AE, but not any SAE, and they do not need to use steroids for treatment, out of a total of 10 patients in the analysis. If PD-1 is used alone, there's around 10% to 15% of immune-related SAE. So the results from these two studies are encouraging and support a further study of Plinabulin in combination with nivolumab. In late 2017, we announced our plans to expand our development portfolio with exploration of Plinabulin in triple combination I/O therapies, combination that appear to have synergistic efficacy in tumor inhibition based on preclinical models. The expectation is that combining Plinabulin with the standard of care could improve efficacy while reducing toxicity. Our triple combinations include a PD-1 inhibitor, CTLA-4 inhibitor, and Plinabulin combination, and PD-1 inhibitor, a chemotherapy, and Plinabulin combination, and we anticipate advancing two triple-combo studies into Phase 1 studies this year. Other preclinical assets include BPI-002, an oral CTLA-4 inhibitor; and BPI-004, an agent that appears to turn cold tumor into hot. These preclinical assets are complemented by our ubiquitination platform in preclinical trials this year, which represent a brand new area of innovation that we plan to explore for its effect on the active form mutant KRAS as the first target. Now let's turn to 2017 financial results. First, our cash position remains strong. Our cash and cash equivalents stands at $30.6 million at the end of 2017. Supplementing our cash position during 2017 was the receipt of two grants totaling around $920,000 or RMB6.1 million, from Dalian local government, where BeyondSpring's China office is located. This non-equity diluting grant signals government's recognition and support of our innovation. Based on our current operating plan, we believe that we’ve sufficient cash resources necessary to advance our ongoing clinical trials and submit the conditional NDAs in China for Plinabulin for the CIN in late 2018 or early 2019 and non-small-cell lung cancer indication in first half of 2019. Moving to expenses. In 2017, our R&D expenses were $88.9 million, which compared to $10.4 million in 2016. R&D expenses for 2017 included two significant non-cash items. The first was $42.3 million in the purchase of remaining interest in Plinabulin from Nereus, and $17.8 million was for non-cash share based compensation expenses. So if just for the cash R&D expense in 2017, it was $28.8 million. G&A expenses were $9.1 million for 2017, compared to $1.5 million for 2016. The increase in G&A expenses was mainly due to the share based compensation newly incurred in 2017 and the increase in advisory expense, headcount, and legal fees associated with operating as a public company. U.S. GAAP net loss attributable to BeyondSpring for 2017 was $91.8 million compared to $12 million for 2016. For greater detail related to our fourth quarter and full-year 2017 numbers, I refer you to our results announcement issued this morning and our 20-F filing. So in conclusion, we named our company BeyondSpring to reflect our business model, one that means beyond borders as we integrate U.S., China, and global resources to develop transforming cancer drugs in a timely and cost efficient manner. Our name also means beyond seasons, as we strive to rapidly leap from the planting and hope season of spring to the harvest season of NDA submission. We remain confident in our lead asset, Plinabulin, and its potential as a meaningful new drug candidate for CIN and non-small-cell lung cancer as well as its potential as a broadly applicable new component to combination therapies in chemotherapy and immuno-oncology. We're also eager to advance our next novel pipeline candidate into the clinic this year or early next year. As we look to the 12 to 24 months ahead, we’ve an ambitious plan with a steady flow of multiple significant near-term milestones that have the potential to transform BeyondSpring into a commercial stage company as early as next year. I look forward to keeping you updated on each of these exciting milestones in the coming months. With that, we’d like to now open-up for questions. Operator?
Operator
谢谢,女士。[操作员说明] 我们的第一个问题将来自H.C. Wainwright的Joe Pantginis。您的线路现已接通。
Operator
Thank you, ma'am. [Operator Instructions] And our first question will come from the line of Joe Pantginis with H.C. Wainwright. Your line is now open.
Joseph Pantginis
您好。早上好,Lan。感谢您回答问题。我想询问一下目前正在进行的一些背景活动。在您预计今年晚些时候从几项研究中获得中期数据之前,我想了解您能否讨论一下目前在这些数据公布之前正在进行的申报工作?此外,这个问题的另一部分是,关于普那布林在中国的生产,您目前正在做什么,还有哪些工作仍需完成?谢谢。
Joseph Pantginis
Hi. Good morning, Lan. Thanks for taking the question. Wanted to ask about some of the background activities going on right now. Ahead of the interim data that you are expecting from a couple of the studies later this year, I wanted to see if you could discuss the filing efforts that are ongoing right now ahead of these data? And then part of that question is also, what are you doing now and what needs to still be done with regard to manufacturing in China for Plinabulin? Thanks.
Lan Huang
非常感谢,Joe,也感谢您这些年来的支持。正如您所知,NDA申报资料包是一个非常庞大的资料包,也是一个雄心勃勃的计划。因此,在我们朝着今年年底提交申请的目标前进时,我们已经在整合所有内容。NDA资料包包含几个组成部分。第一,包括所有临床前部分,包括GLP毒理研究,这些在我们资料包规划中早已完成。第二是CMC(化学、制造与控制)资料包,我们已经在美国和中国生产了三批符合注册质量的Plinabulin原料药和三批制剂。这些文件目前正在准备中,并且已经通过了1年稳定性时间线,这足以满足NDA提交的要求。第三,正如您所知,是临床安全性数据包。正如我在演讲中提到的,我们已经拥有超过300名癌症患者使用Plinabulin作为癌症治疗药物。所以这部分已经完成,所有临床——安全性资料包之后的部分。现在基本上对于CIN适应症,我们只是在等待105研究三期中期数据,我们计划入组150名患者,但在100名患者入组时的中期数据,我们应该能完成这部分。此外,对于106研究,二期部分也应该完成,以获取中国的临床疗效趋势数据。这些基本上是目前正在进行中的,当我们获得这些数据后,就可以整合到NDA资料包中。然后对于非小细胞肺癌研究,对于103研究,正如我提到的,我们已经入组了超过230名患者。对于我们的中期分析,我们正在等待146名患者的测试事件,这可能在今年年底完成。这些也在等待中,然后将整合到整个NDA资料包中。所以正如您所见,我们的团队正在勤奋工作,将我们已经拥有的部分整合起来,然后只需整合到临床部分。关于您刚才问到的生产问题,我们在美国采取外包方式进行。我们有两家CMO生产原料药,另一家生产制剂。在中国也是一样,我们也聘请了两家CMO,一家生产原料药,一家生产制剂。正如我刚才提到的,我们已经完成了所有符合NDA质量要求的三批生产,这些已经准备好进行文件编写并提交给CFDA进行NDA申报。
Lan Huang
Thank you so much, Joe, and thank you for your support over all these years. So as you know the NDA package is a very large package, and it's an ambitious plan. So as we’re going toward for filing to the end of this year, we are already putting everything together. So NDA package includes a few components. Number one, it includes all the preclinical portion, including the GLP tox study, which were early completed in our package planning. And then, number two is the CMC package, and we’ve already manufactured Plinabulin three batches of API and also three batches of drug product with registration quality in the U.S. and also in China. So those documents are being prepared at this moment and they already past 1-year stability timeline, which is enough for submission for the NDA. And number three, as you know, is the clinical data package for safety. So as I mentioned in my talk, we’ve already had over 300 cancer patients who have used Plinabulin as a cancer treatment drug. So that’s already completes, all the clinical -- after the safety package. So now basically for the CIN indication, we’re just waiting for the data of the Phase 3 interim of the 105 study, which we plan to enroll 150 patients, but the interim data at a 100 patient enrollment, we should complete that portion. And then also, for the 106 study, and the Phase 2 portion should also complete for the clinical efficacy trend for China. So those are basically currently ongoing and when we’ve those data ready, we can plug into the NDA package. And then for the non-small-cell lung cancer study, for the 103 study, as I mentioned, we basically have enrolled over 230 patients already. And then for our interim analysis, we’re waiting for 146 patient test events, and that could be at the end of this year. So those are also in the waiting and then to be plugged into the whole NDA package. So as you see, it's a -- our team is working diligently to put the portions which we already have together and then just to plug into the clinical section. As what you just asked about the manufacturing, so we’re taking the outsourcing way of doing it for the U.S. We’ve two CMOs manufacturing the API and another one manufacturing the drug product. And same thing for China, we also employed two CMOs to do one for API, one is for the drug product. As I just mentioned, we’ve already finished all of the NDA quality three batches, and then those are ready to be put into the writing and submit for the CFDA NDA.
Joseph Pantginis
明白了。不,谢谢,这非常有帮助。然后有一个快速的临床问题,如果您不介意的话。关于106研究,您能提醒我们您所寻求的优效性标准是什么吗?显然是统计学显著性,但您有——您能提醒我们实际的标准是什么吗?
Joseph Pantginis
Got it. No, thank you, that’s very helpful. And then one quick clinical question, if you don't mind. With regard to Study 106, can you remind us what you are looking for as the hurdle for superiority? Obviously, statistical significance, but do you have -- you -- can you just remind us what the actual hurdle is?
Lan Huang
好的。关于106研究,这是一项高风险化疗研究。化疗方案是TAC,即多西他赛、阿霉素和环磷酰胺。对于TAC方案,在不使用G-CSF的情况下,严重中性粒细胞减少症的持续时间或患者住院天数约为7至10天。使用Neulasta或G-CSF后,DSN(严重中性粒细胞减少持续时间)可减少至1.5至2天。因此——在我们计算三期试验统计样本量时,我们基本上使用我们先前普那布林的数据与已发表的G-CSF数据进行比较,我们计算出普那布林治疗方案的DSN为0.6天,而Neulasta组为1.2天。基于此,我们仅需使用60对患者即可证明普那布林在DSN这一主要终点上的优效性。当然,次要终点包括骨痛,我们相信普那布林也将显示出优效性,因为G-CSF的作用机制确实是将中性粒细胞从骨髓中推出,这就是为什么它会产生这种使人衰弱的骨痛副作用。而普那布林是通过保护中性粒细胞免于分解,因此没有那些骨痛副作用。
Lan Huang
Okay. So for the 106 study, this is a high risk chemo study. So the chemo is TAC, so basically Taxotere, Adriamycin and cyclophosphamide. So for the TAC, without any use of G-CSF, the duration of severe neutropenia or how many days a patient is in the hospital is around 7 to 10 days. With the use of Neulasta or G-CSF, basically, that DSN reduce to 1.5 to 2 days. So -- and when we calculated for the Phase 3 statistics, as we basically use our previous data of Plinabulin versus the published data of G-CSF, we basically calculate Plinabulin's treatment program to be 0.6 days, and then for the Neulasta arm, it's 1.2 days. So with that, we will only need to use 60 pair of patients to demonstrate the superiority for the DSN as the primary endpoint. Of course, the secondary endpoint includes the bone pain and that Plinabulin should show -- we believe it's going to show superiority as well because G-CSF by its mechanism truly makes the neutrophil -- pushing the neutrophil out of bone marrow, that’s why it has this debilitating bone pain side effect. And Plinabulin is preserving the neutrophil from breakdown, so it does not have those bone pain side effects.
Joseph Pantginis
明白了。很好。谢谢补充的信息,Lan,并祝你在接下来非常繁忙的时期一切顺利。
Joseph Pantginis
Got it. Great. Thanks for the added info, Lan, and good luck with all of the very busy times ahead.
Lan Huang
哦,非常感谢你,Joe。
Lan Huang
Oh, thank you so much, Joe.
Operator
谢谢。下一个问题来自Maxim Group的Jason McCarthy。您的线路现已接通。
Operator
Thank you. And our next question will come from the line of Jason McCarthy with Maxim Group. Your line is now open.
Jason McCarthy
早上好,Lan。感谢回答问题。我有一个关于商业化的问题。随着你们在中国接近提交申请,预计美国也会很快跟进,你们如何看待普那布林在Neulasta市场中的定位?特别是考虑到Neulasta在美国预计今年晚些时候将面临生物类似药的竞争?您能否就Neulasta在中国和美国市场的动态,以及你们计划如何定位普那布林以获取市场份额,给我们一些见解?
Jason McCarthy
Good morning, Lan. Thanks for taking the questions. I have a question related to commercialization. As you are approaching filing in China, which should be quickly followed by the U.S., how do you position or see Plinabulin in the landscape of Neulasta, particularly as Neulasta is going biosimilar in the U.S., we expect, maybe later this year? Can you give us some color on the market dynamics of the Neulasta space in China and the U.S. and how you are going to position Plinabulin to take market share?
Lan Huang
非常感谢,Jason。这是一个很好的问题。正如您所知,G-CSF在过去30年主导了市场,而G-CSF是一种生长因子。所以基本上,我们使用生长因子来治疗癌症患者,这确实有违常理。而Plinabulin,正如您所知,是一种抗癌药物,它能保护中性粒细胞免于分解。因此从作用机制的角度来看,它绝对优于G-CSF。然后从Plinabulin相对于Neulasta或生物类似药G-CSF的价值主张来看,我认为我们可以用以下四个P来解释。第一,对于患者来说,第一个P,我们认为Plinabulin相比Neulasta或任何生物类似药G-CSF具有更高的生活质量,因为后者仍然是G-CSF,机制相同。首先,它具有更高的生活质量,因为从机制差异来看,我们引起的骨痛要少得多。第二,Plinabulin使用起来要容易得多,因为它可以在化疗给药后的第一天使用。根据我们的二期研究,我们基本上在化疗周期中,在多西他赛使用后30分钟使用Plinabulin,单次给药,这就是我们展示其益处的方式。而Neulasta占据大部分市场份额是因为它可以单次给药,但需要在化疗周期的第二天,对吧?所以第二点,我们说它也使医生受益,第二个P,加上Plinabulin是抗癌药物,它与多西他赛联合使用时显示出持久的反应,我们希望它也能在其他化疗药物中显示这些效果。这基本上是免疫效应,因此从医生的角度来看,治疗患者可能具有高效力。第二,它还可能减少患者的意外就诊,因此医生可以在化疗给药后减少对患者的治疗。第三是针对支付方,第三个P。正如您所知,根据我们的二期研究,101研究,我们已经证明Plinabulin的住院率远低于G-CSF。我们是6%,而G-CSF是20%。从这个意义上说,即使我们以后对Plinabulin收费,如果价格与Neulasta相同,那么支付方仍然支付更少,因为他们支付的住院费用更少。所以这对支付方也有利。第四是针对保护,第四个P。因为Plinabulin是小分子药物,只有三步合成,所以非常容易制造。因此其商品成本与生物制剂相比,即使是生物类似药G-CSF,它仍然是生物制剂,可能只有其成本的1/10。因此,我认为未来我们可以采用更具竞争力的定价策略,这对市场非常有利,对患者、保险公司都非常好,而且我认为我们仍然为投资者留有充足的利润空间。这些就是Plinabulin的价值主张。这就是为什么当我们与IMS对美国180多名定期开具G-CSF处方的医生进行研究时,他们看到Plinabulin的概况后非常兴奋。正如我提到的,他们会给我们GCS市场的大部分份额以及高风险化疗市场的份额。而且,Plinabulin实际上可以占据很多中风险市场,这占化疗市场的60%,而目前的NCCN指南不建议在该市场使用G-CSF。回到您关于中国动态和商业化的问题,正如您所知,中国每年有400万新癌症患者,我们知道中国可能高达60%的患者确实使用化疗药物,那就是240万患者。其中,潜在市场——80%是中风险和高风险患者群体。这给了我们中国近200万患者,他们在使用化疗后可能受益于Plinabulin。我们也很幸运获得了中国政府的重要资助,即十三五重大专项。这有可能使Plinabulin在中国获批后,并在明年下半年成功价格谈判后,进入国家医保目录。因此,实际上我们可以让政府为这种药物付费,我们的市场覆盖范围非常巨大。在中国,癌症治疗实际上非常集中在北京、上海和广州地区。非常集中,大约80%的癌症治疗发生在那里。因此,我们可以使用一个非常小的商业团队,大约30人,覆盖这些主要地区的医院,然后在其他二线城市和省份使用合同销售人员。因此,在中国,商业组织实际上会非常精简,但也非常高效,特别是如果我们获得政府的国家医保。这样我们可以帮助很多病人,而且政府也支持这项重大努力。
Lan Huang
Well, thank you so much, Jason. That’s a great question. As you know, that G-CSF has dominated the market for the last 30 years, and as you know, G-CSF is a growth factor. So basically, we’re using growth factor to treat cancer patients, so that’s really counterintuitive. And Plinabulin, as you know, is an anticancer drug, so it preserves the neutrophil from breakdown. So from a mechanism point of view, it's definitely superior to G-CSF. And then just from the value proposition of Plinabulin versus the Neulasta or biosimilar G-CSF, I think we can use the four Ps, as below, to explain. So, number one, for the patients, so the first P, so we think Plinabulin has higher quality of life against Neulasta or any biosimilar G-CSF because that’s still G-CSF, right, the same mechanism. So first is, it has high quality of life because we’ve much less bone pain as from the mechanism difference. Number two is Plinabulin is much easier to use because it could be used the first day after chemo dosing. From our Phase 2 study, we can only use -- we basically use Plinabulin 30 minutes right after docetaxel use in one cycle, in one dose, and that’s how we showed its benefit. And Neulasta taking most of the market share is because it can be used one dose, but on the second day of the cycle, right? So number two is we say it also benefits the physicians, the second P, plus Plinabulin is anticancer drug it shows a durable response in combination with docetaxel, and we hope it can also show those with other chemotherapies. So that’s basically the immune effect, so that will be potential high efficient efficacy from a physician point of view to treat the patient. Number two is, it also potentially has less unexpected visit for the patients, so the doctor could treat the patient less after the chemo dose. So number three is for the payers, so the third P. As you know, that from our Phase 2 study, 101 study, we’ve shown that Plinabulin has much less hospitalization than G-CSF. We are at 6%, and G-CSF was having 20%. So in that sense, even if we charge Plinabulin later, if it's the same price as the Neulasta, then we still -- the payers still pay less because they pay less of the hospitalization. So that's also beneficial for the payer. Then number four is for the protection, so the fourth P. Because Plinabulin is a small-molecule drug, so only three-step synthesis, so it's very easy to make. So its cost of goods compared to a biologic, even with biosimilar G-CSF, it's still biologics, it's probably 1/10 of the cost. So with that, I think, in the future, we could use a much better competitive pricing so -- for the market and then that will be very good for the patient, the insurers, and still, I think, we’ve plenty of margin for our investors. So those are the value propositions for Plinabulin. So that's why when we did the research with IMs -- IMS with over 180 doctors in the U.S. who regularly prescribe G-CSF, they saw Plinabulin's profile and they were very excited. And as I mentioned, they would give us a large chunk of GCS market and for the high risk chemotherapy market. And still, Plinabulin actually could occupy a lot of the intermediate risk market, which is 60% of the chemo market, where current NCCN Guidelines do not advise to use G-CSF. Coming back to your questions regarding the China dynamics and commercialization, as you know, China has 4 million new cancer patients a year, and we know probably up to 60% patients actually do use chemotherapy drugs in China, so that’s 2.4 million patients. And out of them, potentially market -- 80% was the intermediate and high risk patient population. So that give us almost 2 million patients in China who could benefit from Plinabulin after their use of chemotherapy. So we also were very fortunate to receive this major grant from the Chinese government, the 13th 5-year grant. So that potentially could get Plinabulin into the national insurance after Plinabulin is approved in China and after successful price negotiation second half of next year. So with that, actually, we could make the government to pay for this drug, so our reach is tremendous into the market. And in China actually the cancer care is very centralized in Beijing, Shanghai, and Guangzhou area. It's very centered there, so it's around 80% of cancer care is happening there. So we could use a very small commercial team, probably around 30 people, to cover those hospitals in those major areas and then using the contract salespeople in other second tier cities and the provinces. So in China, actually, the commercial organization would be very lean, but also very efficient, especially if we get the national insurance from the government. So we could help a lot of sick people and with the government also supporting the major effort.
Jason McCarthy
非常感谢,Lan。
Jason McCarthy
Thank you so much, Lan.
Lan Huang
感谢您的提问。
Lan Huang
Thank you for the questions.
Operator
谢谢。下一个问题来自JonesTrading的Matthew Cross。您的线路现已接通。
Operator
Thank you. And our next question will come from the line of Matthew Cross with JonesTrading. Your line is now open.
Matthew Cross
嘿,Lan。祝贺你们度过了富有成效的一年,感谢回答我的问题。首先,我想知道您能否简要介绍一下你们在一月底展示早期数据的普那布林与纳武利尤单抗联合治疗研究者赞助试验的最新进展?能否谈谈您对后续数据发布时间的预期,以及接下来可能会展示哪些发现?谢谢。
Matthew Cross
Hey, Lan. Congrats on a productive year and thanks for taking my questions. So first off, I was wondering if you could give us just a quick status update on the investigator sponsored combination trials with nivolumab that you presented early data from at the end of January? Could you discuss your expectations for timing of additional data from these and what kind of findings might be presented next? Thanks.
Lan Huang
非常感谢,Matt。感谢您的支持。关于普那布林与纳武利尤单抗的联合治疗,我们与加州大学圣地亚哥分校和弗雷德·哈钦森癌症研究中心合作开展了研究者发起的研究。目前,弗雷德·哈钦森中心已经进入研究的第二阶段,主要招募患者进行疗效评估,而不仅仅是安全性评估。在我们用纳武利尤单抗和普那布林治疗的10名患者中,非常显著的是,我们没有观察到任何3级或4级免疫相关严重不良事件。正如您从PD-1、PD-L1单药治疗中看到的,免疫相关严重不良事件的发生率可能在10%到15%之间。因此,这确实令人鼓舞,表明普那布林甚至可能降低免疫相关严重不良事件。这将非常有帮助,因为PD-1药物虽然非常有效,但其免疫相关严重不良事件限制了使用——有些患者不得不终身停药。关于您提到的额外研究,正如您所见,我们正在顺利推进第二阶段。希望我们能在今年年底或明年初展示疗效数据。我们还在研究一些生物标志物——免疫生物标志物。希望这也能进一步阐明普那布林在临床研究中的免疫机制。谢谢。
Lan Huang
Thank you so much, Matt. Thank you for your support. So for Plinabulin in combo with nivolumab, we’ve conducted investigator initiated study with UCSD and the Fred Hutch. So currently, Fred Hutch has already moved into the Phase 2 portion of the study, so basically, enrolling patients mostly for efficacy whether they’re only for the safety. So out of the 10 patients who we treated with nivolumab and Plinabulin, very significantly, we don't see any Grades 3 and 4 immune-related SAE. As you see from the PD-1, PD-L1 alone, which you see probably 10% to 15% of the immune-related SAE. So this is truly encouraging to show that Plinabulin potentially could even reduce the immune-related SAE. And that would be really helpful because now the PD-1 agent, I think it's very effective, but now taming its use -- its immune-related SAE, some patients have to stop use of drug for life. So as what you talk about, for the additional studies, as you see, we’re progressing nicely into the Phase 2 portion. So hopefully, we should have efficacy data to be shown probably the end of this year, early next year. We are also looking into some biomarkers -- immune biomarkers in the study. So hopefully, that will also further elucidate Plinabulin's immune mechanisms during the clinical study. Thank you.
Matthew Cross
很好。这些信息非常有帮助,我期待2018年或2019年初的数据更新。另外,我知道之前讨论过,鉴于普那布林的安全性特征和早期给药的潜力,该药物可以用于中危和高危化疗患者。但据我了解,评估患者因特定化疗方案发生发热性中性粒细胞减少症的风险相当主观,或者不同医生之间的评估不太一致。所以我想知道,您能否从与医生的讨论中,无论是通过IMS还是其他方式,谈谈在实际实践中如何实施基于风险的标签差异化?谢谢。
Matthew Cross
Great. That’s very helpful, and I will look forward to that data update in 2018 or early 2019. And then I know it's been discussed that given Plinabulin's safety profile and the potential for earlier administration, the drug could be given to intermediate as well as high risk chemo patients. But to my understanding, the gauging of patients' risk of febrile neutropenia from a given chemotherapy regimen is pretty subjective or not particularly consistent from one physician to another. So I was wondering if there was anything you could speak to from your discussions with physicians, through IMS or otherwise, about how potential label differentiation there on the risk here might be implemented in actual practice. Thanks.
Lan Huang
好的。这个问题可能应该由我们的首席医疗官Ramon来回答。这很大程度上是一个临床问题。Ramon,您能就此发表一些评论吗?
Lan Huang
Okay. So probably I should give this question to Ramon, our Chief Medical Officer. This very much is a clinical question. Ramon, can you make some comments here?
Ramon Mohanlal
是的,谢谢。关于中度风险,NCCN指南对使用抗中性粒细胞减少症疗法有相当明确的定义。中度风险的定义是基于发热性中性粒细胞减少症风险在10%至20%之间,而高风险则代表20%或更高的风险。有许多化疗方案属于中度风险范畴,因此对于哪些患者会面临中度FN风险有相当明确的指导。然而,正如您正确指出的,不同医生之间确实存在不同的临床实践,即不同医生可能会就何时为这些中度风险患者处方G-CSF做出自己的决定。我想指出的是,中度风险处方行为的很多考量也包含了这些G-CSF药物通常较高的成本因素。除了成本因素外,另一个考虑是这些药物的安全性,这些药物确实存在严重的安全性问题。因此,我们认为Plinabulin在中度风险领域具有良好定位,因为它可以作为具有成本效益的替代方案,并且是长效的单剂量周期替代方案。它还具有更有利的安全性特征,特别是在骨痛方面。我们将与关键决策者密切合作,影响NCCN指南的制定,这些指南通常在医生中具有很大影响力,能够影响他们的处方决策。总的来说,我们认为我们在中度风险领域定位良好,因为我们解决了G-CSF产品的重要局限性,这些局限性限制了G-CSF产品在该领域的应用。我们将与NCCN成员密切合作,推动Plinabulin在该领域的应用。我还想提醒您,我们的研发团队中有多位NCCN骨髓生长因子委员会的成员,因为他们看到了Plinabulin在CIN适应症应用中的巨大潜力。谢谢。
Ramon Mohanlal
Yes, thank you. So regarding the intermediate risk, that is fairly well defined by NCCN Guidelines for the use of anti-neutropenia therapies. So the definition of the intermediate risk is based on having an FN risk between 10% and 20%, whereas, for a high risk, that risk would represent 20% or higher risk. There's a long list of chemotherapies that falls within the intermediate segment risk, so there is fairly good guidance what patients will be subjected to intermediate risk for FN. Nevertheless, as you pointed out rightly, is that between physicians, there are different practices in the sense that different physicians, they may make their own decisions regarding when to prescribe G-CSF in these intermediate-risk patients. I would like to point out is that a lot of the behavior for prescription in the intermediate risk also takes into account the cost component that comes with these G-CSF agents, which typically is high. Combined with the cost component also, another consideration is the safety of these agents, and these agents, they do come with serious safety concerns. So we believe that Plinabulin is well positioned in this intermediate segment risk for the reason that it can be offered as cost effective alternative, and it's also a long-acting one-dose cycle alternative. And it comes with a more favorable safety profile, in particular as it pertains to bone pain. We will work very closely with key decision makers to influence the guidelines for NCCN, which typically carries a lot of weight among physicians to influence their prescription decisions. So collectively, we believe we are well-positioned for the intermediate risk segment because we address important limitations for G-CSF products which limits the uptake of these G-CSF products for this intermediate segment risk. And we will work very closely with NCCN members to influence the uptake of Plinabulin in this segment. I also would like to remind you that we have several NCCN members for myeloid growth factors on our development team because they see the tremendous potential that comes with the use of Plinabulin for the CIN indication. Thank you.
Matthew Cross
完美。感谢您的清晰解释。我想我的问题就这些了。谢谢大家。
Matthew Cross
Perfect. Appreciate the clarity. I think that does it for me. Thanks, guys.
Lan Huang
谢谢。
Lan Huang
Thank you.
Operator
谢谢。我这边显示没有更多问题了。现在我很荣幸地将会议交还给黄兰博士女士,请她做结束语或评论。
Operator
Thank you. And I’m showing no further questions in the queue. So it's my pleasure to hand the conference back over to Ms. Dr. Lan Huang for some closing comments or remarks.
Lan Huang
好的。谢谢。感谢大家参与今天的电话会议,也感谢你们提出的深刻问题。祝大家有美好的一天。
Lan Huang
Okay. Thank you. Thank you for your participation on today’s call and also your insightful questions. You have a good day.
Operator
女士们、先生们,感谢大家参与今天的电话会议。本次会议到此结束,大家可以断开连接。祝大家度过愉快的一天。
Operator
Ladies and gentlemen, thank you for your participation on today's conference. This does conclude our program and you may all disconnect. Everybody have a wonderful day.