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Operator
Good morning, ladies and gentlemen, and welcome to Baxter International's fourth-quarter earnings conference call. Your lines will remain in a listen-only mode until the question-and-answer segment of today's call. (OPERATOR INSTRUCTIONS). As a reminder, this call is being recorded by Baxter and is copyrighted material; it cannot be recorded or rebroadcast without Baxter's permission. If you have any objections, please disconnect at this time. I would now like to turn the call over to Ms. Mary Kay Ladone, Vice President Investor Relations at Baxter International. Ms. Ladone, you may begin.
Mary Kay Ladone - Dir. of IR
Thanks, Sean. Good morning, everyone, and welcome to our Q4 2007 earnings conference call. Joining me today are Bob Parkinson, CEO and Chairman of Baxter International, and Rob Davis, Chief Financial Officer.
Before we get started, let me remind you that this presentation, including comments regarding our financial outlook, new product developments and regulatory matters, contains forward-looking statements that involve risks and uncertainties and, of course, our actual results could differ materially from our current expectations. Please refer to today's press release and our SEC filings for more details concerning factors that could cause actual results to differ materially.
In addition, in today's call non-GAAP financial measures will be used to help investors understand Baxter's ongoing business performance. A reconciliation of the non-GAAP financial measures being discussed today to the comparable GAAP financial measures is included in our earnings release issued this morning and available on our website. Now I'd like to turn the call over to Bob Parkinson.
Bob Parkinson - Chairman, CEO, President
Thanks, Mary Kay. Good morning, everyone, and thanks for calling in this morning. We're very pleased with our fourth-quarter and full year 2007 financial results that we reported earlier today. 2007 was a great year for our company and we believe we continue to be very well positioned for 2008 and beyond.
While we exceeded expectations on virtually all key financial metrics for the year, we're particularly pleased with the improving quality of our earnings and the strength of our overall financial position. While Rob will provide a detailed explanation of our financial results in just a few minutes, I'd like to briefly point out a few important highlights at the outset this morning.
As you saw, adjusted EPS again exceeded guidance for the quarter reflecting a 15% increase versus the prior year. Sales growth for the quarter, after adjusting for both FX and our TT divestiture, grew a very solid 7% and this despite the loss of BeneFIX sales in Europe. Full year sales growth, again adjusting for FX and the sale of TT, was 8% and adjusted EPS of $2.79 reflects robust growth of 25% versus 2006.
For the year on an adjusted basis gross margins of 49% even improved by 260 basis points over the prior year, and operating income as a percentage to sales was 20.8% which is the highest level we've had in a number of years. As we look forward to 2008 and in fact beyond, we expect both gross and operating margins to expand further as a continued result of improved product mix and business mix, intense focus on pricing opportunities throughout all of our businesses, disciplined control of manufacturing costs and productivity improvements throughout our global manufacturing footprint.
As part of our strategic plan we'll continue to accelerate overall R&D spending both internally and through ongoing business development initiatives. And in fact, R&D spending increased 16% in 2007 versus 2006 and exceeded $700 million on an adjusted basis for the year which is a record level for our company.
During the year we obtained approval for or launched a dozen new products and continued to make excellent progress advancing many of the programs in our pipeline including our trials with IVIG for Alzheimer's, our adult stem cell trial for cardiac myocardial ischemia, our seasonal and pandemic influenza programs and many others.
In the fourth quarter R&D spending exceeded $200 million and increased 14%. Some of our more recent R&D highlights include -- completing the screening of patients for final enrollment in our Phase II trial; using our proprietary Isolex technologies to select CD34+ adult stem sells to improve symptoms and clinical outcomes in patients with chronic myocardial ischemia, which is a severe form of coronary artery disease.
In addition, we recently announced our support of a Phase I/IIa trial at Northwestern University's Feinberg School of Medicine for the use of adult stem cells in patients with a condition called critical limb ischemia, or CLI, which is characterized by severely blocked arteries in the leg and sharply diminished blood flow that could result in amputation.
Secondly, we received final funding from the Department of Health and Human Services along with our partner DVC for the continued development of our cell cultured seasonal and pandemic influenza candidate vaccines. In addition, we initiated a Phase III clinical trial in the U.S. using ours seasonal influenza vaccine candidate -- a trial which will include more than 3,000 subjects is expected to be completed by midyear.
Third, we initiated a Phase II study evaluating our fibrin sealant product, Tisseel, as a hemostasis agent in vascular surgery, which can ultimately lead to a broad hemostasis indication for this product. And finally, we obtained FDA 510(k) clearance for V-Link, a Luer-activated device with VitalShield protective coating, the first needleless IV connector containing an antimicrobial coating. This new device, which we'll launch in the first half of 2008, has been shown to kill 99.9% of specific common pathogens known to cause catheter related bloodstream infections, including the highly resistant bacteria called methicillin-resistant Staphylococcus aureus, or MRSA.
I'm also very pleased with the acceleration of our business development activities throughout 2007 which included completing the divestiture of transfusion therapies, which was a significant undertaking, and establishing a dozen new alliances with companies like Halozyme, DEKA Pfizer, Nektar and Nycomed to name just a few. In the fourth quarter alone we completed four business development initiatives including the agreement we discussed at last quarter's conference call with Kaketsuken for the worldwide rights to develop, manufacture and market the recombinant proteins, ADAMTS13.
In addition, we recently announced plans to develop both an unmodified recombinant Factor IX therapy and a chemical modified longer acting version. Preclinical work on the longer acting version of recombinant Factor IX includes an expanded partnership with Nektar Therapeutics using their leading PEGylation technology in combination with Baxter's recombinant Factor IX to increase labelings the time that Factor levels are maintained in the body and potentially reducing the number of required infusions.
In the quarter we also completed two deals that complement our regenerative medicine business and biosurgery portfolio. First, we announced a marketing, supply and manufacturing agreement with Pfizer and the FDA approval for GELFOAM Plus hemostasis kit, which contains Pfizer's GELFOAM gelatin absorbable sponge and Baxter's human Thrombin for the use in controlled bleeding during surgical procedures.
And lastly, through a partnership with Nycomed, Baxter has been granted exclusive rights to market and distribute the company's TachoSil patch in the United States upon FDA approval which is expected in 2009. TachoSil is currently available in more than 50 markets outside the U.S. including Europe and Japan with annual sales of more than $150 million.
Before turning the call over to Rob, let me provide just a quick update on the COLLEAGUE infusion pump. Over the last several months we've made significant progress with the remediation of the U.S. installed base of single channel COLLEAGUEs. To date we've remediated approximately 62,000 pumps representing more than 40% of the U.S. installed base of single channel devices. These upgraded COLLEAGUEs are performing quite well in the marketplace. As we've previously communicated, we've defined the fixed to the triple channel COLLEAGUE issue and we're in the final stages of completing our 510(k) which we expect to submit to the agency in the next several weeks.
As you know in the third quarter Parexel, our independent auditor, notified us that our quality systems had been certified thereby triggering an inspection by the FDA within 30 days. In December the FDA completed their inspection and raised several questions to which we have responded. We're hoping to receive the FDA's input shortly.
As a result of our progress to date we believe we'll be in a position to recommercial COLLEAGUE by the middle of the year. And while Rob will address our financial guidance for the year more specifically in just a moment, I'll tell you now that we are planning sales revenue for COLLEAGUE of approximately $75 million in 2008. We can pick up on this further in the Q&A if you'd like, but in the meantime let me turn the call over to Rob for a more detailed discussion of our Q4 and full year results. Rob?
Rob Davis - Corp. VP, CFO
Thanks, Bob, and good morning, everyone. As Bob mentioned, we are very pleased with our financial performance for the year and for the quarter 2007. Let me start by walking you through the P&L by line item and then I'll conclude my comments with a discussion of our 2008 outlook before turning the call back to Bob for some closing comments.
Starting with sales, our reported sales totaled approximately $3 billion and increased 9%. Currency contributed 6 percentage points of growth, so sales growth excluding foreign currency was 3% and in line with the guidance we provided of 2 to 3% growth for the quarter. Excluding Transfusion Therapies from both years reported sales increased 13%, and excluding foreign currencies sales growth was 7% reflecting the underlying strength of our businesses globally.
Like last quarter, we face difficult comparisons in both BioScience and medication delivery for the planned transition of marketing rights for BeneFIX and Propofol which had a combined sales totaling more than $60 million in Q4 of last year.
Turning to full year results, worldwide sales totaled $11.3 billion and increased 9% with currency contributing 5 percentage points of benefit. Again, excluding Transfusion Therapies from both years, reported sales increased 12% and excluding foreign currency sales growth was 8%.
In terms of individual business performance, let me start with medication delivery which had sales totaling approximately $1.2 billion, an increase of 11%. Currency contributed 6 percentage points of growth; therefore excluding currency medication delivery sales increased 5%. U.S. sales increased 3% while international sales increased 21%. International sales growth excluding foreign currency was the highest of the year at 8%.
For the full year medication delivery sales of $4.2 billion increased 8%, and excluding currency sales were up 4%, in line with our guidance. I should note that this performance reflects the turnaround we've been discussing as medication delivery generated positive growth in 2007 for the first time in three years.
By segment, global IV therapy sales of $390 million increased 14% with currency contributing 8 percentage points of growth. Growth continues to be driven by solid demand for our solutions globally, modest pricing improvements and strong international growth in our nutritions business. Global infusion system sales totaled $236 million in the quarter and increased 7% or 2% excluding foreign currency.
In the quarter anesthesia sales totaled $126 million and increased 37% while full year sales exceeded $420 million with growth of 33%. Our results continue to reflect the success we've had with our proprietary anesthetic Suprane augmented by generic sales of sevoflurane and, importantly, reinforces our position as the only supplier of all three modern inhaled anesthetics in the global marketplace.
And finally, global injectables and pharma partnering sales of $390 million increased 4% with currency contributing 4 percentage points of growth. Strong growth from our international pharmacy compounding and U.S. pharma partnering businesses offset the decline of Propofol. Excluding Propofol and currency sales growth of global injectables was approximately 5%.
I'd also like to point out, since some of you may have seen this, that we recently recalled nine lots of generic heparin 1000 unit multidose vials due to an unusual increase in allergic reactions. We've notified our customers and we are awaiting official classification of this recall by the FDA, which we do anticipate will be a Class I. Sales of this low margin product totaled approximately $10 million in 2007, and we do not expect it to materially impact our business in 2008.
To summarize, 2007 was a very solid year for medication delivery. Annual sales were in line with our expectations, and the business generated positive sales growth for the first time since 2004. We continue to be very encouraged by the building momentum and the number of positive trends across the medication delivery portfolio, including the solid fundamentals in our IV therapy and anesthesia businesses, the progress we are making with colleagues, and the growth prospects of our pharma partnering business.
Now moving on to renal. Fourth-quarter sales totaled approximately $600 million and increased 12%, with foreign currency contributing 8 percentage points of growth. In line with our expectations, renal sales for the full year totaled $2.2 billion, an increase of 8%, with currency contributing 4 points of growth.
Hemodialysis sales of $120 million increased 11%, and excluding currency, sales increased 2%. Global PD sales totaled $481 million for the quarter and increased 12%, with currency contributing 7 points of growth. Excluding currency, sales growth was 5%. The consistent growth in PD sales throughout 2007 can be attributed to solid growth in the U.S. where patient growth this quarter of approximately 4% is the highest it has been in a number of years.
This is further augmented by strong international growth as a result of double-digit patient gains, particularly in China, the rest of Asia and Latin America. In fact, China was our fastest-growing country in 2007 with more than 13,000 PD patients, representing a year-over-year increase of 30%.
In summary, renal demonstrated very consistent performance throughout the year. The success of our back-to-basics approach continues to strengthen our global leadership position, and we continue to see solid fundamentals in this business as exemplified by our international performance.
Now turning to BioScience, BioScience delivered another outstanding quarter with record sales of approximately $1.2 billion, an increase of 16%. This growth includes 6 percentage points of benefit from foreign currency. Excluding foreign currency, sales growth in BioScience was 10%. U.S. sales increased 14%, driven by double-digit increases in virtually all product categories, while international sales growth which was again impacted by the difficult comparison for BeneFIX increased 18% or 6% excluding currency.
For the full year, BioScience sales reached approximately $4.6 billion, reflecting an 18% increase versus 2006. Excluding foreign currency, full year sales increased 13%. As a sidenote, BioScience sales growth excluding BeneFIX and foreign currency was 15% in the quarter and 16% for the full year. Recombinant sales of $463 million increased 14% in the quarter and totaled $1.7 billion for the year, a 13% increase versus 2006.
Throughout 2007 we continued to see conversion to ADVATE with global sales for ADVATE now exceeding $1.2 billion on an annual basis. On a global basis conversion to ADVATE, which was 60% in 2006, expanded to approximately 70% by the end of 2007. While conversion in Europe remains at over 90% we've now converted 55% of our patients in the U.S. and 65% of our patients to ADVATE in other markets. This continues to reflect the strong demand for ADVATE which we've differentiated with various dosage forms making it easier for patients requiring higher dosings to administer ADVATE by reducing the number of vials needed as well as the total infusion time.
In addition, we expect to continue to drive growth in this business with our focus on increased compliance, establishing prophylaxis as the standard of care and continuing to support global penetration of the therapy.
Turning to the plasma business -- in the quarter plasma protein sales of $301 million increased 15% with currency benefiting sales by 7 percentage points. Performance continues to be driven by growth of our specialty therapeutics like FEIBA, Flexbumin and Aralast as well as increased demand and improved pricing across the portfolio.
Antibody therapy sales increased 35% and totaled $280 million with currency benefiting sales by 5 points. Growth was once again driven by continued demand for and conversion to liquid Gammagard and price improvements in the U.S. and Europe. I should note, liquid conversion of approximately 40% in 2006 is now at approximately 60%.
Sales of our regenerative medicine business totaled $95 million and increased 22% with currency contributing 5 points of growth. This continues to be a result of strong growth of FLOSEAL and COSEAL.
Finally, revenues in the other category totaled $70 million as a difficult comparison for BeneFIX, which had sales of approximately $45 million last year, once again offset strong vaccines growth which was a continued result of increased demand for our FSME encephalitis and meningitis vaccines. For the full year vaccine sales exceeded $300 million.
As you know, BioScience had a great year with sales reaching a record level and exceeding our original expectations. We continue to believe that this business will continue exhibit solid to improving market fundamentals and is well positioned for 2008 and beyond. As a result we expect increased sales and continued gross margin expansion in BioScience driven by strong underlying demand, continued conversion to higher margin products like ADVATE and liquid IVIG as well as specialty plasma therapeutics and continued growth in our regenerative medicine and vaccine businesses.
Turning now to gross margin -- gross margin in the quarter of 49.4% improved 1.8 points versus last year. The primary driver of this expansion continues to be improved business and product mix, particularly in BioScience given conversion to ADVATE and liquid Gammagard, growth of our specialty plasma therapeutics and continued yield improvements. These improvements were partially offset by $20 million of discretionary expenses related to both COLLEAGUE remediation costs and certain customer accommodations for U.S. customers and the impact of higher margin vaccine sales versus last quarter. Adjusting for these two items gross margins would have exceeded 50%.
For the full year gross margin of 49% improved by 2.6 points versus last year's margin of 46.4%. As we've mentioned in the past, the majority of this improvement can be attributed to business and product mix upgrades and cost and yield improvements with approximately 20% of the improvement resulting from favorable price, particularly in the BioScience and plasma business.
In the fourth quarter SG&A of $654 million increased 7% compared to prior year. This growth includes approximately 5 points of growth from foreign currency. SG&A as a percentage of sales was lower sequentially and improved to 21.7% from 22.1% in the fourth quarter of last year.
We continue to make investments in select marketing programs as we redirect our promotional focus towards higher margin, higher growth products while tightly managing general and administrative costs. R&D spending of $206 million increased 14% on an adjusted basis driven by double-digit increases in all three businesses for new product launches, clinical trials and milestone payments to partners.
As we reinvigorate innovation across the Company and accelerate R&D spending I think it's important to note that we continue to do so with disciplined project and milestone management, increased productivity as well as program prioritization while balancing our pipeline with both short and long-term product opportunities.
Turning now to operating margins -- our operating margin in the quarter was 20.8%, an improvement of 1.9 percentage points despite increases in both SG&A and R&D. And for the full year our operating margin of 20.8% improved by 2.3 points compared to the 2006 full year margin of 18.5%.
Other expense of $4 million was similar to last year and interest expense was $12 million compared to $1 million in the prior year period. The tax rate in the quarter of 19.9% was in line with our expectation. And finally, as we mentioned earlier, on an adjusted basis earnings per diluted share of $0.76 increased 15% and compares favorably to the earnings guidance we previously provided of $0.72 to $0.74 per share. The adjusted results exclude after-tax charges totaling $10 million or $0.02 per diluted share for in process R&D associated with recently announced collaborations with Nektar Therapeutics and Nycomed.
Moving to cash flow -- cash flow from operations for the quarter totaled $751 million and for the full year we generated cash flow from operations of approximately $2.3 billion, in line with our expectations. This was after a net outflow of more than $150 million as a result of our decision in the fourth quarter to exit our accounts receivable securitization facility in Europe given that the economics of this type of program have deteriorated.
Our total DSO, which ended the quarter at 53 days, is in line with last year as a lower DSO in the U.S. was offset by a higher international DSO due to changing geographic mix. Inventory turns of 2.5 turns are slightly lower than 2.7 turns last year. As in previous quarters, this is primarily due to the inventory build in medication delivery for the COLLEAGUE remediation efforts. As we move through 2008 inventory turns are expected to improve as we begin to work down the COLLEAGUE inventory.
Capital expenditures for the year totaled $692 million compared to $526 million in 2006. And as we continue to invest in appropriate capacity across our businesses to support our growth, you will see a continued growth in capital expenditures into 2008.
And lastly, for the year we repurchased 34 million shares of common stock for $1.9 billion on a net basis. We've repurchased 17 million shares for $1.2 billion. This is consistent with our stated capital allocation strategy and focus on returning value to shareholders through both share repurchases and dividends.
Overall I am particularly pleased with our ongoing ability to generate strong cash flow. We were able to return significant value to our shareholders as a result of progress in rebuilding our financial flexibility, continuing with our capital allocation and financial management discipline while investing in R&D and accelerating business development activities that will position us for future growth.
Finally, I thought I'd conclude my comments this morning by providing our financial outlook and guidance for 2008. As you saw in the press release this morning, we expect earnings of $3.10 to $3.18 per share. This reflects continued expansion of gross and operating margins, select investments in marketing and promotional activities to support our growth going forward and accelerated R&D spending.
More specifically, we expect sales growth, excluding the impact of foreign exchange, to be in the 5 to 6% range. On an apples-to-apples basis, excluding Transfusion Therapies revenue in both 2007 and 2008, our full year sales growth, excluding foreign currency, would approximate 6 to 7%. I will expand on this in more detail in just a moment.
For the full year we expect gross profit as a percentage of sales to improve by 100 to 150 basis points reflecting continued expansion in BioScience and improved profitability in medication delivery and our core PD business. Given our margin expansion we have the flexibility to accelerate investments in R&D and therefore expect annual R&D growth in the low to midteens.
We expect SG&A to increase in mid single digits as we continue to control general and administrative expenses and selectively invest in marketing and promotional activities to support new product launches and our higher growth/higher margin products. We expect to continue our trend of year-over-year operating margin improvement as operating margins in 2008 improved by approximately 100 basis points to approximately 22%.
We expect interest and other expenses combined to total approximately $130 million. We expect interest expense to increase by more than $50 million as a result of our decision to exit the remaining net investment hedges that mature in 2009 as well as generate a lower level interest income due to the assumption of lower U.S. interest rates and lower cash balances. We expect our tax rate to approximate 19.5% and, finally, we expect a full year average share count of 640 to 645 million shares assuming share repurchases of at least $1 billion on a net basis.
From a cash flow perspective we expect cash flow from operations to exceed $2.5 billion and capital expenditures to total approximately $850 million as we continue to invest to expand capacity for certain medication delivery products and plasma therapeutics.
Now, to expand on our sales assumptions for the full year -- first, we expect foreign currency, based on current exchange rates, to impact the sales by approximately 2 to 3 points for the full year; therefore our reported sales growth is expected to approximate 8%. Second, as Bob mentioned earlier, we continue to make good progress with the COLLEAGUE infusion pump and our 2008 guidance now includes approximately $75 million in COLLEAGUE revenues.
Third, we expect Transfusion Therapies sales associated with transition services to decline throughout 2008 and to total approximately $130 million versus $223 million in 2007. And lastly, as a reminder, BioScience and medication delivery will face difficult comparisons in the first half of 2008 given the impact of BeneFIX and Propofol with sales in 2007 totaling $100 million and $35 million, respectively.
Turning to the three businesses, for 2008 we expect renal sales excluding foreign currency to be approximately flat. This is primarily the result of lower PD sales growth due to the recent loss of a major government tender in Mexico. If you adjust for the Mexico tender renal sales growth would have been in mid single digits demonstrating the ongoing strong fundamentals of the core PD franchise across the other markets.
For medication delivery we expect sales excluding foreign currency to grow in the 5 to 7% range. This will be driven by several factors. First, anesthesia growth will be in the midteens due to strong end-user demand for our proprietary anesthetic, Suprane, and additional market launches of sevoflurane.
Second, we expect global injectables business to grow in low single digits. Consistent with 2007 trends, strong growth in the pharma partnering business is expected to offset declining revenues in generic injectables primarily due to the tough year-over-year comparisons for Propofol.
Lastly, IV therapy sales are expected to grow in line with overall market growth of mid single digits and infusion systems is expected to grow in the 8 to 10% range, including the contribution from COLLEAGUE.
Finally, for the BioScience business, we expect sales growth of 8 to 10% driven by strong growth across the portfolio. First, we expect recombinant growth in high single digits including ADVATE sales approaching $1.4 billion. Second, we expect plasma protein and antibody therapy sales to grow in the low teens given solid demand and improved pricing. Third, we expect growth in our biosurgery business to once again be in the midteens.
And finally, we expect the other category to decline by approximately 15 to 20% as the impact of BeneFIX offsets strong vaccine sales. Vaccine sales are expected to total at least $380 million in 2008 versus $300 million I highlighted for 2007. As a result of continued demand for our encephalitis and meningitis C vaccines as well as revenues related to our influenza advanced purchase and stockpile agreements.
For the first quarter we expect earnings per diluted share of $0.71 to $0.73 and sales growth, excluding the impact of foreign currency, of approximately 3%. This equates to approximately 5% growth, excluding Transfusion Therapies, which was divested at the end of the first quarter of 2007.
In summary, throughout 2007 we've generated strong cash flow, delivered solid revenue and earnings growth and improved the profile of the P&L. We believe our 2008 plans are realistic and achievable, reflect the benefits of our diversified healthcare model and continue to track well with our long-term expectations. Now I'd like to turn the call back over to Bob.
Bob Parkinson - Chairman, CEO, President
Thanks, Rob. Before we open up the call to Q&A let me make just a few brief closing comments. Obviously 2007 was a very successful year for us on multiple fronts -- financially, operationally and strategically -- and we accomplished a number of important achievements that will support continued improvement not only into 2008 but beyond.
First, as further evidenced by our 2007 performance, our organization is increasingly effective in operational execution as measured by our ability to improve margins and increase cash flow. Second, these improvements have enabled us to move into Phase II of our turnaround characterized by the accelerated level of R&D spending and the pace of business development initiatives, both of which are critical elements to accelerate revenue growth in the years ahead.
Third, our company continues to benefit from the power of our diversified healthcare model with each of the businesses making significant contributions in 2007 whether through product development, strategic partnerships, geographic expansion or a combination of the three. And we're committed to sustaining this momentum in the months and years ahead.
And lastly, while we're not without our challenges of course, we continue to be very well positioned with respect to the changing macro environment given the medically necessary nature of our products, our strong market positions further supported by our global brand and presence we're confident in our ability to drive improved performance and growth despite a changing economic and political environment.
Our 2008 outlook is aligned with our long-range strategic plans and we remain committed to meeting our short-term financial guidance while continuing to invest in innovation and business development activities that position the Company for enhanced growth in the future. In the meantime, we begin 2008 positioned for continued success. We look forward to providing all of you with continued updates throughout the year. So with that we'll now open up the call to Q&A. Mary Kay?
Mary Kay Ladone - Dir. of IR
Sean?
Operator
(OPERATOR INSTRUCTIONS). Mike Weinstein, JPMorgan.
Mike Weinstein - Analyst
Thank you, good morning. First question, Rob, I was hoping you could just spend another minute on the $20 million in incremental expenses in the COGs line that you identified so we understand that.
Rob Davis - Corp. VP, CFO
No, I'm happy to do that. A couple of things. First, in the quarter, as you know, we have been in the process of remediating our single channel pumps throughout really most of 2007. And in the fourth quarter we did have one customer, an important customer, where we did give some concessions in the form of really lower margins on some products that we put into that chain. And as a result that did drive down the margin in the quarter for medication delivery, that's one piece of it.
And then as we continue to evaluate where we are with our total remediation cost, we saw the opportunity in the quarter to take a little bit extra for some of the charges we've seen over time as we've been continuing to do the remediation. So that was a portion of it as well.
Mike Weinstein - Analyst
And Bob, if we listen to the 2008 guidance and we look at what's in our model and think back to last year's analyst meeting, you laid out a base case LRP for 2011 which you talked about with the gross margin in that base case way north of 50% and operating margins of roughly 23%. And here we are looking at 2008 and we're already talking about gross margins north of 50 in '08 and operating margins of 22%. So pretty quickly in your LRP you're going to blow through that 2011 plan. Do you want to update the LRP today?
Bob Parkinson - Chairman, CEO, President
We've just given you guidance for '08, and now you want guidance for --. Our outlook base case stays the same. Obviously we're pleased with the progress to date. We are -- the facts are what they are. We are moving ahead given our guidance for '08, slightly faster than that base case than we presented to all of you back last March I guess at our investor conference. But we'll see how things go before we become more definitive beyond that. Rob, I don't know if you have anything you want to add?
Rob Davis - Corp. VP, CFO
No, the only thing I would add is I think, to be clear, what we've consistently said is we always expected to exceed the 50% gross margin, we were just never willing to quantify by how much. So we are continuing to track obviously well to our own expectations long-term, but this in no way implies that we've robbed the later years of margin improvement and brought it in earlier. All of the growth drivers that we've talked about consistently through 2007 of our margin will continue well beyond 2008.
Mike Weinstein - Analyst
The renal business, the Mexican contract that you guys gave up this year, I assume that's a lower margin contract?
Bob Parkinson - Chairman, CEO, President
It would have been at the prices we probably would have had to bid. And you hate to walk away from business, but I think in many ways it exemplifies the discipline that we've tried to maintain in all of our businesses over the last few years, but that's a big impact on the revenue line so we wanted to get it out there to make sure that everyone was aware of it.
As Rob pointed out in his comments, and I guess I want to reemphasize however, adjusting for Mexico -- this back to basic strategy in our core PD business, which is really the area of strategic focus, continues to be very effective and we continue to see both patients and revenue associated with our core PD business ramp up very nicely. But we wanted to call that out especially so you all knew what was going on there.
Rob Davis - Corp. VP, CFO
Yes, I think it's important to note just to give you a sense of perspective, that was about a percentage point on our total company sales. So that also, to Bob's point, did have an impact on sales. But we still think it was the right decision to make.
Mike Weinstein - Analyst
Okay, last item. I'm just listening to the different pieces relative to our model, the ups and downs. Anesthesia is going to be very strong which is a high margin business; the specialty therapeutics within biosciences by the Aralast -- obviously the plasma protein is all very strong for 2008. And then stuff that is going to be pulling off, obviously the Transfusion Therapies revenues was a low margin business. This Mexican contract would have been a low margin business. There's still a lot here that if I think about the mix of what's driving your revenue growth is the mix is still a big shift to higher margin products, fair?
Rob Davis - Corp. VP, CFO
Yes.
Mike Weinstein - Analyst
Great. Thank you, guys.
Operator
Rick Wise, Bear Stearns.
Rick Wise - Analyst
Good morning, everybody. COLLEAGUE, just to clarify for me, the $75 million that you mentioned for COLLEAGUE, is that a worldwide number that you all were suggesting for '08? Was that an OUS only number? Because my impression is, if I'm remembering correctly, you're already generating some $60 million to $70 million internationally.
Rob Davis - Corp. VP, CFO
To be clear, that is just a U.S. number. So effectively what we're saying is in the U.S. we expect $75 million of sales from COLLEAGUE, so really we gave no explicit guidance to OUS because we really were just focusing on getting the product back in the U.S. market.
Mary Kay Ladone - Dir. of IR
Although, Rick -- this is Mary Kay -- the OUS COLLEAGUE sales are about $25 million to $30 million in '07 and will be in that similar range in '08, that's our current plan.
Rick Wise - Analyst
Okay, thank you, very helpful. Coming back to gross margin, Mike detailed a lot of the issues that are improving, but maybe you could help us understand and add a little more clarity -- the gross margin improvement issue, many people are concerned --- frequently concerned, that Baxter is running out of gas on margins. It clearly sounds like that's not at all the case. But maybe if, Bob, just you could expand more broadly on why you're so confident you highlighted product mix, business mix maybe get into a little more -- add a little more color on the pricing and productivity side of things so we can help appreciate the improvement?
Bob Parkinson - Chairman, CEO, President
Let me just comment on several of those things; I'll try not to get into too much detail. But I think one of the misconceptions that I commonly run into on the outside is gee, this margin improvement story that's associated with plasma proteins and that's it. And of course, as you know, Rick, there's much more going on here than just that. Every one of our businesses continues to improve its gross margins and it's a byproduct of really business unit product mix upgrade. Med delivery is a good example of that.
With the turnaround in this business and the accelerating revenue growth which is encouraging, within that is higher growth, as was commented on with Mike's question previously; accelerated growth in anesthesia, which is very high margin; nutritional products; our B2B business and so on. So it's really an upgrade in business unit mix even within the other businesses, okay?
The comment on pricing, we continue to get favorable pricing across most of our businesses, not all of our businesses. A great example of that would be in the core IV business where historically the prices -- the pricing environment has just been very difficult. We're finding right now that there is pricing improvement in the marketplace, the U.S. market, in our core IV business.
So it really is about pricing across the board obviously to varying degrees. Certainly business mix in terms of BioScience growing at a faster rate than med delivery and renal and it has higher margins. But within med delivery and renal business unit mix or productline mix upgrade if you will on promoted categories or promoted businesses that are at a higher margin.
Then of course underlying all of that, which is really an historic strength of this company, is leveraging I think our focus on managing manufacturing costs, offsetting inflationary increases which have been more significant on select raw materials, oil-based materials and so on, resins. Continuing to offset those with cost reduction and what we call value improvement programs.
So it really is a combination of all of those things which is why, Rick, we continue to be encouraged that there continues to be legs on this margin improvement story.
Rick Wise - Analyst
Okay, one last question. International growth ex currency, if I think I'm reading it right, was up only 2% or so. I appreciate that there are a number of drags, BeneFIX, etc., but maybe just give us a little more perspective on growth opportunities internationally and why we might be more confident, again, ex currency we might see accelerating growth. Any big drivers there? Or maybe the question is what's John up to anyway out there -- or internationally?
Bob Parkinson - Chairman, CEO, President
Well, you pointed BeneFIX, which is a big hit internationally. The Mexico tender going forward, if you're talking '08 versus '07, clearly the $100 million in this Mexico tender is a big impact. Also if you're looking '08 versus '09, we had some very strong vaccine sales in Europe as well which are not going to grow at the same rate in '08.
But really a strength of our company has been the sales that are in our international markets, 57, 58% of the sales of the Company are outside the U.S. We've talked previously about geographic expansion being a very important element of our growth going forward. So we continue to be very confident as to the growth prospects internationally. Rob, I don't know if you have anything you want to add to that.
Rob Davis - Corp. VP, CFO
Well, one, I just want to make sure to clarify -- actually I think if you look at our constant international sales growth into '08 it's 6%, Rick. So Mary Kay can give you the details of that. But to Bob's point, if you look medication delivery is improving year-on-year. BioScience continues to be strong internationally year-on-year. We mentioned the renal issue.
Absent the Mexico tender I mentioned we would have continued to see the exact trend we've seen in our core PD business driving at about the same rate we've seen throughout 2007. So it's really more of the same of what we had in 2007 with probably a little bit of acceleration in medication delivery. But again, at 6% constant we feel very good about the fundamental underlying growth we're seeing internationally.
Rick Wise - Analyst
Okay. Thanks for another great quarter, guys.
Operator
Matt Dodds, Citigroup.
Matt Dodds - Analyst
Good morning. I'm going to go back to plasma. A couple questions on that area. For the IVIG growth, the last couple quarters, even if you look at it organically, the growth has been accelerating, it doesn't seem to be priced. So are you ready to say yet that unit growth is on the increase at least double digits in that business?
And then the second question more for '08 is on Aralast. Now that you have higher supply, are you going to make a more concerted effort to go after new patients to try to grow that business? What's the plan for accelerating Aralast? That should be a very profitable product for you.
Bob Parkinson - Chairman, CEO, President
All right, let me take a stab at both of those and then, Rob, you can add to my comments. Relative, Matt, to IVIG, yes, the growth is very encouraging. It is more than price. As you know, it continues to be mix upgrade from lyophilized to liquid in certain markets where we get value there.
To your point, the reality is the underlying market growth for IVIG I think continues to be quite robust frankly, and we're also seeing fairly significant price increases in even developing markets and so on where historically there was a bigger price gap, but with the global supply situation you're seeing really a more accelerated pricing favorability in select geographies around the world.
So you've got that dynamic, overall strength in pricing, robust underlying volume growth and continued mix upgrade from lyophilized to liquid. And so it's really the confluence of all those things that lead to the kind of positive growth that you've seen. Mary Kay?
Mary Kay Ladone - Dir. of IR
Yes, I was just going to add, Matt, for 2007 volume growth was in the low double digits.
Matt Dodds - Analyst
Okay. And did that accelerate through the year?
Mary Kay Ladone - Dir. of IR
I don't have that, but I can follow up with you later.
Rob Davis - Corp. VP, CFO
I think another important point, Matt, too, and your question -- we did put out for antibody therapies and our plasma proteins low teens sales in 2008. So we are reflecting the fact that versus that 10% long-range volume price number we've continue to quote, some of the positive trends we've seen in '07 we expect in '08. We'll deal with beyond '08 when we move forward with our revised long-range outlooks.
Bob Parkinson - Chairman, CEO, President
On Aralast, your second question, yes, we have been obviously constrained from a supply point of view as it relates to being as proactive promotionally as we'd like to be. We're approaching a position now where we can open up the throttle a bit from a promotional point of view. Aralast represents a great opportunity, a great example of a specialty therapeutic within the plasma protein category and so on. So I think that you can assume that as the supply situation improves you will see us be much more proactive in the marketplace promotionally.
Matt Dodds - Analyst
Thanks, Bob. Thanks, Rob.
Operator
Larry Keusch, Goldman Sachs.
Larry Keusch - Analyst
Good morning, guys. Just a couple quick things here and I'm going to come back to plasma as well. First off, can you just give us an update on the timing for the presentation for that Phase II data on Alzheimer's?
Rob Davis - Corp. VP, CFO
Larry, this is Rob. We continue to expect it in the first half of the year. There are a couple different conferences that the lead investigator, Dr. Relkin, is looking to get to, so I don't want to commit for him a date. But there are several conferences coming up here in the coming months that I know he's looking at. So we do believe you'll see it before we get to midyear.
Larry Keusch - Analyst
Let me ask another way. Is February out now though?
Rob Davis - Corp. VP, CFO
To be honest with you, I can't say for certain.
Larry Keusch - Analyst
Okay. And then just two sort of longer-term questions for you. Bob, what are you doing with the fractionation facility or what are the plans for the facility in L.A., the older facility, over the next several years? Is that going to be moth-balled? Do you keep it around if you should need it? So if you could sort of help us think about what's happening.
Bob Parkinson - Chairman, CEO, President
Fundamentally we're obviously winding it down now. The long-term plan is to take it out of commission, okay? In the meantime we continue to support the conversion from the old to the new in L.A. frac and we also look at our operations in Vienna and Rieti in Italy to look for where there's opportunity to get either more productivity through yield enhancements, yield improvements or modest capacity expansions that enable us in terms of our global manufacturing footprint fractionation to make sure that we can stay attuned to the underlying market demand.
Larry Keusch - Analyst
Okay. And then lastly, just are you noticing any difference or are you making any assumptions for the sort of supply characteristics dynamics as you think in '08, particularly amongst the competitors?
Bob Parkinson - Chairman, CEO, President
You're talking about in the plasma business, Larry?
Larry Keusch - Analyst
Yes, please.
Bob Parkinson - Chairman, CEO, President
No, I think our position is consistent with what we've communicated with all of you. We don't see any dramatic change necessarily. Obviously we're not as familiar with our competitors as we are with our own situation. But it would seem that people are doing what they need to do to ensure that the global demand can be met collectively by the industry.
Larry Keusch - Analyst
okay, terrific. Thanks, guys.
Operator
Glenn Reicin, Morgan Stanley.
Glenn Reicin - Analyst
Two questions. If I look at your guidance, at least relative to my expectations, the biggest variance for 2008 was really on the vaccine line. And ever since you guys bought North American Vaccine I've sort of seen a bumpiness with respect to that business. Has that changed and should we sort of expect straight line growth going forward? That's the first question.
Rob Davis - Corp. VP, CFO
Glenn, it's Rob. No, I don't think you should expect straight line growth. I think the key is based on improving fundamentals in that business, obviously with FSME and our meningitis C vaccines and what's been going on in the markets for those products, we expect to see good growth in those from '07 to '08. Obviously we saw good growth in those from '07 versus '06. Beyond that it really is more focused on -- near-term on the pandemic opportunities. And while we do expect to continue to have those and that's part of why we gave the growth expectations we gave, it's one of those things where they come in fits and starts.
We do believe given how long product will last on the shelf and the fact that there will need to be restocking, every couple years there is more out there for this. So that is something we see. But I think more importantly than that long-term, given the technical success we've had with our [verasil] platform, now we're starting to think strategically about other opportunities in the vaccines business as well. So it will be a growth vehicle for the Company, but just given the nature of it it's hard to say that it's going to be a straight line growth.
Glenn Reicin - Analyst
Let me ask it a different way. The tenders that you have, and I assume this is a tender business, do you think there's a high probability of retaining those tenders from year-to-year?
Rob Davis - Corp. VP, CFO
On the base business, FSME and [Nispec], yes.
Glenn Reicin - Analyst
Okay, good. Second question which will hopefully will cap the whole discussion about pricing on plasma. Just from my back of the envelope calculations I was estimating for 2007 that it contributed around $120 million pretax or around $0.15 a share. I'd love to hear whether you can confirm that number or not. And talk about solely on the plasma and antibody businesses? And then while you don't really want to talk about the industry, what are you assuming in terms of pricing for 2008?
Bob Parkinson - Chairman, CEO, President
What do we have -- I think in terms of pricing around mid single digit pricing or --?
Rob Davis - Corp. VP, CFO
Well, what we've continued to communicate, and I don't think we want to necessarily deviate from that, is mid single digits on price, low to mid, probably edging toward mid for '08 and then the rest being volume to get to that low teens number, Glenn. I'd have to go back and quantify the dollar impact of pricing. I can tell you that generally as we quoted in the script, and this is something we continue to track, it runs about 20% of the total across all of the plasma and protein business. So I could do the math, but that's probably the easiest way.
Bob Parkinson - Chairman, CEO, President
Explain the 20%.
Rob Davis - Corp. VP, CFO
20% is price improvement in '07 versus '08 -- sorry, '06 versus '07 in margin -- so that the margin contribution is higher.
Bob Parkinson - Chairman, CEO, President
20% of the improved margin is resulting from price. I just want to be clear. (multiple speakers). I think everybody knows that, but it's very important to clarify.
Rob Davis - Corp. VP, CFO
The margin contribution.
Glenn Reicin - Analyst
Well, let me press you on that. While you don't want to go back and look at the numbers, mid single digit pricing, just your gut, does that compare with double-digit pricing this year or upper single digit pricing, sorry, in 2007?
Mary Kay Ladone - Dir. of IR
It depends on the product, Glenn. But yes, in some cases we did see double-digit pricing.
Bob Parkinson - Chairman, CEO, President
I think across the plasma proteins it's probably high single digits. The take away is we think the year-to-year price improvement '08 versus '07 will modulate certainly versus '07 versus '06, but continue to be at least in that kind of mid single digit year-to-year increase level. Does that help?
Glenn Reicin - Analyst
Yes, very much so. Thank you very much.
Operator
Kristen Stewart, Credit Suisse.
Kristen Stewart - Analyst
Good morning. I was just wondering if you guys could expand a little to the extent you can on healthcare associated infections. I know you mentioned V-Link is one of the products that you recently introduced in that area. Anything else that you believe you can bring to the table over the near-term?
Bob Parkinson - Chairman, CEO, President
Beyond the product that we've announced that we're launching in '08 we're evaluating a number of other things. There won't be any other products in this area. Obviously this is a pronounced need that exists in the acute care hospital environment. And especially as reimbursement changes -- one of the things that you're probably all aware of is Medicare and other reimbursers now are focusing on either medication errors or hospital acquired infections in hospitals for not reimbursing going forward which is clearly getting the attention of the acute care hospital system throughout the U.S.
So the marketplace is becoming increasingly responsive to these kinds of products and technologies that can be instrumental in reducing rate of infection. So beyond the product we've announced we don't have anything specific we're prepared to talk about now, but given this market need and really expanding market opportunity that exists, clearly it's an area of strategic focus for our medication delivery business.
Kristen Stewart - Analyst
And then can you just remind us again where you stand on generic biologics and how you're viewing that, if your thoughts have changed at all?
Bob Parkinson - Chairman, CEO, President
It hasn't been really a priority for us. We continue to monitor, obviously, the ongoing discussion and debate on regulatory pathways and what the implications of that may be. It isn't at all evident that this is something that's going to get to well-defined in the near-term. And so, while we are in the generic multisource business with other therapeutics, frankly we continue to observe and stand on the sideline a bit, as may be the best way to describe it, and monitor this whole area of either generic biologics or what people refer to as biosimilars. I guess what I would say is it isn't self-evident to us at this stage that this can really be a big opportunity for us.
Kristen Stewart - Analyst
Okay, thanks very much.
Mary Kay Ladone - Dir. of IR
Sean, we have time for one more question.
Operator
Ben Andrew, William Blair.
Ben Andrew - Analyst
Good morning. Just wanted to follow-up on one last plasma question -- I promise, just one. What have you seen historically in terms of off label use of IVIG in Alzheimer's and what have you baked into your plan? So the real question becomes what impact could we see if in fact the data from the Phase II study are positive?
Bob Parkinson - Chairman, CEO, President
We haven't really baked anything in our plan. It isn't evident to us that there is use of any significance. There may be a few people who are trying it in a very selective basis. But again, our visibility into that is quite limited and it clearly is not a dimension that we'd dial in our forecast, Ben, for 2008.
Rob Davis - Corp. VP, CFO
I think it's safe to say, Ben, we've talked about this in several occasions that because of the fact that currently this is an unreimbursed therapy and it is a fairly expensive therapy, we just don't see a huge influx of off-label use coming as we announce trial results. So this continues to be a great long-term opportunity for the Company, but not something that we believe has a material short-term impact of any kind.
Ben Andrew - Analyst
Okay. And Second question is on the PD side. Really kind of three topics there. Are there international tenders or concerns that we might be looking at other impacts and why is the competitive dynamic changing so dramatically there that there's this $100 million hit in Mexico as well as why are you seeing below market growth still in PD in the U.S.?
Bob Parkinson - Chairman, CEO, President
Okay, a number of questions. First of all, I think the situation in Mexico is pretty much of what I would describe as a one-off, okay? What I'm saying by that is we don't see other markets around the world at this stage that appear to be going down kind of a centralized tender pathway that Mexico has, so that's the first piece, Ben.
Secondly, the reason the impact is so significant is about 80% of all dialysis patients in Mexico are on PD. So it's one of our biggest markets, as you know. As a result it's also a big expenditure for the government. We feel that the quality of our products, and not just our CAPD products but our APD products with HomeChoice cycler and so on frankly deserve a premium above and beyond what we were willing to bid or it may have taken to bid to get the volume.
This conversion takes place within just a couple of weeks actually, the 1st of February. So we'll see how this whole thing plays out. But I think at this stage, if I can kind of think about your question and really what you're getting at here is don't conclude that what's happening in Mexico is happening around -- necessarily going to domino around the world, I don't think that's the case at all.
Ben Andrew - Analyst
Is that a long-term contract or is that a one-year tender or a multi-year?
Bob Parkinson - Chairman, CEO, President
It's a one-year contract.
Ben Andrew - Analyst
So you've got a shot to get it back?
Bob Parkinson - Chairman, CEO, President
Yes. And there will be a lot of experience gained in the meantime by docs, patients, the government and the like, so stay tuned. On the U.S. piece, you're right, our growth in PD patients in the U.S. is lower than the rest of the world. It is also higher today than any time it's been in 10 years. And we expect our PD patient growth to begin accelerating even into '08.
There's a lot of reasons for this; I'm not going to take everybody's time this morning to get into detail. But I think that we've made great progress really in the last 12 months or so in kind of cracking the code so to speak in terms of how we think we can over time accelerate patient growth. And in the U.S. you're obviously aware of the concentration of providers with folks like Fresenius and DaVita and so on. So while it is lower than the rest of the world, your observation is correct, the gap is closing and we think we're making progress there.
Ben Andrew - Analyst
Thanks, Bob.
Operator
Ladies and gentlemen, this concludes today's conference call with Baxter International. Thank you for participating.