Thank you, Ilanit. Good afternoon everyone and thank you for joining our call.
The second quarter was pivotal for Rockwell as we made significant headway advancing our Triferic portfolio. Today, I'll share updates around our initial commercialization efforts for Dialysate Triferic.
Our NDA for the IV formulation of Triferic progress in markets outside the United States, including just released data from two studies in China and recent CMS announcements.
We continue to see Triferic as an innovative therapeutic platform and we're excited about our initial efforts to build awareness of its unique therapeutic attributes. And as you may know, we have multiple formulations to Triferic for treatment of hemodialysis patients are just recently launched dialysate formulation, which comes in both a powder packet and the liquid ampoule and the IV version for which we submitted an NDA to the FDA in May that was recently accepted for filing with a PDUFA date of March 28, 2020.
There are more than 2 million people in the world today who receive hemodialysis treatments including over 450,000 in the United States. And because these patients lose iron during each treatment, anemia is a chronic issue for which roughly 80% receive traditional IV iron to address the condition. Maintaining healthy hemoglobin levels is extremely important for these patients and current treatment protocols, traditional IV iron and ESAs, erythropoietin stimulating agents, are costly and have been associated with both higher ferritin levels and adverse events.
Triferic, on the other hand, develops – delivers actually the iron and the hemoglobin maintenance that that hemodialysis patients need without increasing ferritin levels and without the risks associated with other therapeutics.
As the first and only FDA approved therapy indicated to replace iron and maintain hemoglobin levels, Triferic mimics natural iron homeostasis and its physiologic mechanism of action donates iron directly and completely to transferrin.
And we believe that Triferic is appropriate for substantially all haemodialysis patients and has the potential to shift the way that anemia is managed in this population.
Our estimates suggest a peak market opportunity of $400 million in the U.S. alone. And our expectation is that over time we will be able to penetrate a substantial portion of this market by establishing Triferic as the standard of care.
So against this backdrop, we achieved several significant milestones during the second quarter, starting with the launch of Dialysate Triferic.
During the quarter, we have realized our first commercial sales of Dialysate Triferic with a handful of targeted accounts through consistent with our – though consistent with our previous statements, our sales for the quarter were not material.
We're still very much in the early stages of our launch and executing on our strategic medical and commercialization plan for Dialysate Triferic is one of our top priorities for 2019 and we're confident that we are engaging with the appropriate target group of dialysis clinics in this initial phase.
Our 2019 plan remains to drive adoption by providing medical education to providers and increasing awareness and understanding of Triferic’s medical and potential pharmacoeconomic advantages.
Our approach is a phased launch of Dialysate Triferic with an initial focus on centers of excellence in the U.S. and our sample sites.
Our initial success has come from single site or small independent chains and we're working actively with multi-site independence and medium-sized dialysis organizations or MDOs to accelerate adoption, more on that and our plans for large sized dialysis organizations, or LDOs, later.
Well, let me share some of the feedback that we're hearing from the early adopters.
First, the clinics appreciate the ability of Triferic to maintain hemoglobin without increasing ferritin levels. This feedback is especially important in light of results from the recent Spherix renal anemia survey for Q2 2019, which showed that 73% of survey nephrologists expressed concerns about ferritin levels exceeding 1,000. The survey also indicated that the median ferritin level at which nephrologists become concerned is 800 and notably approximately half of U.S. dialysis patients have ferritin levels above 800.
Second, customers praised the convenience factor of our powder packet formulation because a single packet of Dialysate Triferic to deliver enough iron for 10 patients and clinics have noted a reduction in the nursing time associated with iron administration freeing up nurses to spend more time with their patients. And third, in contrast to traditional IV iron, Triferic can deliver bio available iron even to patients with inflammation. Traditional IV iron can face significant bioavailability challenges in inflamed patients because of the hepcidin block. And this can result in the buildup of iron in the liver and in the other tissues.
This positive response to Triferic is encouraging and as previously indicated we believe the sales cycle in haemodialysis centers is roughly three to four months and as anticipated sales are developing slowly.
As with any transformative therapeutic product, it will take some time for customers to change their mindsets, their behaviors and protocols within their haemodialysis clinics. Furthering our phased commercialization approach, we are targeting medium, small and independent dialysis centers that together treat roughly 25% of the haemodialysis patients in the U.S. And we've engaged in senior level discussions with all of the medium-sized dialysis organizations regarding system-wide arrangements. Though in some cases, we are in discussions to carve out smaller clusters of centers within these organizations as an interim step.
Negotiations with these chains are more complex and one item frequently requested by these potential customers is real world data, which we believe will be a compelling driver of future adoption. And to that end, we have numerous initiatives and process that we believe will yield the data we need to accelerate adoption with the larger providers.
First, we've entered into an agreement with a mid-sized dialysis chain to receive data from their use of Triferic during the sample program and going forward. I'm pleased to report that we received the data in July and we are in the process of analyzing that data.
Second, we're working to attain data from other clinics that participated in the sample program including a leading academic institution.
Third, we are re-analyzing data from previously completed clinical trials that we believe can provide useful information for our discussions with MDOs. And as we move forward from a sales perspective, we plan to expand our focus to include the large dialysis organizations next year following the introduction of IV Triferic if approved in the U.S. and this could potentially increase the patient pool for Triferic four fold.
Turning to reimbursement.
As discussed last quarter, Dialysate Triferic will be reimbursed within the CMS bundled payment for hemodialysis. And in late April, CMS issued a preliminary recommendation, which if finalize would establish a new J-Code, J-1444 for the Dialysate Triferic powder packet. This unique J-Code went into effect on July 1st, 2019 and it's separate from the existing J-Code, J-1443 for the liquid ampoule version of Dialysate Triferi.
Let me now turn to the IV formulation of Triferic. In May we completed the submission of our new drug application to the FDA, for the IV formulation of Triferic and we're pleased that on August 2nd the FDA accepted for filing our NDA with a PDUFA date of March 28th 2020. And as you may recall IB Triferic for adult hemodialysis patients was developed pursuant to a Special Protocol Assessment or SPA through which FDA agreed that an equivalent approach to Dialysate Triferic would be acceptable for review.
The NDA is supported by data from our equivalent study, which demonstrated that IV Triferic delivers the same quantity of iron to patients as does the Dialysate Triferic formulation. An open label randomized multi-period single dose study was conducted to establish the equivalence of doses between Dialysate and IV administration. And we presented results of this study at the Annual Dialysis Conference or ADC in March of this year. On July 29th, CMS issued a preliminary proposed rule that proposes to update payment policies and rates under the ESRD prospective payment system beginning January 1st, 2020.
It contains proposed revisions to the eligibility requirements for the CMS Transitional Drug Add On Pricing Adjustment program or TDAPA, which has the potential to provide two years of add on reimbursement for certain qualifying new drugs. Under the proposed revisions to the TDAPA rules if finalize certain ESRD drugs approved by the FDA under specific types of NDAs would be ineligible for TDAPA effective as a January 12, 2020. And while we've not yet received an official NDA classification code from the FDA for IV Triferic NDA, the classification of each of our prior NDAs for Triferic would fall into the category of drugs to be excluded from TDAPA under the proposed rule.
If our IV Triferic NDA is classified in a similar manner or in any of the other excluded NDA types, it would not qualify for TDAPA under the proposed rule. CMS is accepting comments on the proposals outlined in the preliminary rule through September 27th, 2019 and notably the FDA's policies and procedures around the classification codes state that the codes are not indicative of the extent of innovation or therapeutic value that a particular drug represents. We believe Triferic is in fact innovative. And we plan to engage with CMS both now and as additional data becomes available for Triferic to highlight the attributes that distinguish it from the current standard of care.
While we're still analyzing the impact of the proposed rule and what it would mean if finalized even without TDAPA, we remain enthusiastic about Triferic’s future and see this as a near-term setback. It doesn't change our longer term view of the peak market opportunity in the United States, which has previously stated as based on an assumed market price for Triferic that is within the CMS reimbursement bundle and not on a sustained higher price based on TDAPA eligibility.
In July, CMS also released a new reimbursement proposal intended to incentivize greater use of home dialysis and kidney transplants for Medicare beneficiaries with end-stage renal disease. Both home dialysis and transplant have support among healthcare providers and patients as preferable alternatives to in-center hemodialysis, but they're not as commonly used. Today patients on home dialysis generally must go into the clinic to receive IV iron due to the risk of anaphylaxis and while Triferic is not currently indicated for use in the home, we believe Triferic has the potential to be made available in this environment and could ultimately be a more convenient alternative to IV iron.
We are actively evaluating various regulatory strategies to progress our development of Triferic for home use.
Turning to the global market opportunity, the IV formulation stands to expand the market potential of our Triferic portfolio significantly. In many large markets like Europe and China, dialysis centers used dry bicarbonate cartridges or bags and so their existing protocols will integrate easily with IV Triferic. Developing our presence in these markets is a priority for us and we're making good progress.
As announced this morning, our partner in China, Wanbang Biopharmaceutical recently completed two clinical pharmacology studies of Dialysate Triferic with positive results.
With these encouraging study results in hand the next step will be from Wanbang to schedule the equivalent of a pre-NDA meeting with the NMPA formally known as the CFDA in China to determine whether the data from these studies are sufficient to support a filing for regulatory approval.
Commercial sales activity in this market would commence following regulatory approval. And as part of our licensing agreement with Wanbang we're entitled to up to $35 million of regulatory and sales based milestones, including an $8 million milestone payment upon regulatory approval of Triferic in China and a transfer price that incorporates a mark-up to cost of goods sold and a percentage of net sales in the low-to-mid 20% range. Wanbang is responsible for the cost of the clinical trials and regulatory approval program in China and we retained manufacturing responsibilities for Triferic for China. China is expected to become the largest ESRD market in the world over the next several years.
In Japan, our just completed market research confirms a total market opportunity of more than $250 million in that country and we are actively working to advance our partnership discussions. In Europe we're in ongoing discussions as well with potential partners that can help us penetrate that market. In Canada we expect to submit our application for regulatory approval for IV Triferic in the near future.
And as for our concentrate business, which still accounts for the lion's share of sales at present, we recently finalized a 4.5 year contract with DaVita. The contract is extremely important to us as DaVita represents roughly half of our concentrated sales at this point. The contract includes a price increase relative to our previous agreement and this new contract is a positive step forward for our concentrates business.
We are continuing to identify additional ways to enhance the profitability of the business and to extend our customer base both in the U.S. and abroad. In summary, we're pleased that we hit our two most critical milestones in the second quarter, launching Dialysate Triferic and submitting our NDA for the IV formulation. We believe we're building a steady pathway to sustainable long-term growth.
I'll now turn the call over to our CFO, Angus Smith to review our second quarter financials. Angus?