Vertex Reports Second Quarter 2012 Financial Results and Provides Updates on Progress in Research and Development Programs in Hepatitis C and Cystic Fibrosis

Vertex Reports Second Quarter 2012 Financial Results and Provides Updates on Progress in Research and Development Programs in Hepatitis C and Cystic Fibrosis

<0> Vertex Pharmaceuticals IncorporatedMichael Partridge, 617-444-6108orZachry Barber, 617-444-6470 </0>

(Nasdaq: VRTX) today reported consolidated financial results for the quarter ended June 30, 2012.

Vertex reported total revenues of approximately $418 million for the second quarter of 2012, including net product revenues of approximately $328 million from INCIVEK(telaprevir) and approximately $46 million from KALYDECO (ivacaftor). Royalty revenues related to the sale of INCIVO in Europe by our collaborator were approximately $28 million for the second quarter of 2012. In the second quarter of 2012, the company reported GAAP net loss of approximately $(65) million, or $(0.31) per share, and non-GAAP net income of approximately $100 million, or $0.46 per share. The non-GAAP income excludes charges related to Vertex stock-based compensation expense, charges related to an increase in the fair value of expected future payments under our Alios collaboration and a reserve against the potential for excess INCIVEK inventory. Vertex also updated financial guidance for full-year 2012 INCIVEK net revenues. The company expects full-year 2012 INCIVEK net revenues to be in the range of $1.1 billion to $1.25 billion. Additionally, Vertex today provided updates on a number of ongoing and planned trials in cystic fibrosis, hepatitis C, rheumatoid arthritis and other diseases. In a separate press release issued today, Vertex announced positive viral kinetic data for ALS-2200, a nucleotide analogue in development for the treatment of hepatitis C, which was well-tolerated and showed a median 4.54 logreduction in hepatitis C virus RNA after seven days of dosing with 200 mg of ALS-2200 once daily.

“During the first half of the year, Vertex delivered several important advancements across our broad pipeline. In cystic fibrosis, we obtained U.S. and E.U. approval of KALYDECO earlier than anticipated, and we announced promising data for a combination of VX-809 and KALYDECO that accelerated our plans to begin a pivotal program early next year in people with the most common type of cystic fibrosis. We also announced today the first results for our nucleotide analogue ALS-2200, which enhance our portfolio of potential hepatitis C medicines and provide flexibility in the future development of multiple all-oral treatments for this disease,” said Jeffrey Leiden, M.D., Ph.D., Chair, President and Chief Executive Officer of Vertex.

Dr. Leiden concluded, “Our ability to consistently discover, develop and launch transformative medicines has created significant value for our shareholders. Vertex is positioned for continued leadership in the treatment of hepatitis C and cystic fibrosis, and our efforts to bring forward additional new medicines for other serious diseases are moving forward rapidly.”

Totalrevenues were $418.3 million for the second quarter of 2012, compared with $114.4 million for the second quarter of 2011. Key components of total revenues for the second quarter 2012 were:

Cost of product revenues was $104.5 million in the second quarter of 2012, including a $78.0 million charge to reserve against the potential for excess INCIVEK inventory.

: R&D expenses were $196.5 million in the second quarter of 2012, including $19.7 million of Vertex stock-based compensation expense and $3.7 million in Alios expenses related to the accounting for the collaboration with Vertex, compared to $173.6 million for the second quarter of 2011, including $20.5 million of stock-based compensation expense and $0.5 million in Alios expenses related to the accounting for the collaboration with Vertex. The increase in Vertex's R&D investment is principally due to development activities related to ongoing and planned clinical trials in influenza, RA, hepatitis C and CF.

SG&A expenses were $117.5 million in the second quarter of 2012, including $11.5 million of Vertex stock-based compensation expense and $1.0 million in Alios expenses related to the accounting for the collaboration with Vertex, compared to $96.7 million for the second quarter of 2011, including $11.4 million of Vertex stock-based compensation expense and $0.3 million in Alios expenses related to the accounting for the collaboration with Vertex. This increase reflects the expansion of the company’s global commercial organization, costs related to the commercial launch of KALYDECO in the U.S. and launch preparation activities for KALYDECO in Europe and other countries.

Vertex’s GAAP net loss was $(64.9) million, or $(0.31) per diluted share, for the second quarter of 2012 compared to the GAAP net loss of $(174.1) million, or $(0.85) per share, for the second quarter of 2011.

Vertex’s non-GAAP net income was $99.8 million, or $0.46 per diluted share, for the second quarter of 2012, excluding $31.2 million in stock-based compensation expense, a $56.2 million charge related to an increase in the fair value of expected future payments under our Alios collaboration following the positive viral kinetic data announced today and a $78.0 million charge in cost of product revenues to reserve against the potential for excess INCIVEK inventory. The non-GAAP net loss was $(136.4) million, or $(0.67) per share, for the second quarter of 2011.

Vertex today revised guidance for full-year 2012 INCIVEK net revenues. The company expects full-year 2012 INCIVEK net revenues to be in the range of $1.1 billion to $1.25 billion. The revised guidance reflects the recent downward trend in the number of patients initiating treatment within the hepatitis C market.

Vertex today reiterated its guidance for 2012 total operating expenses, excluding cost of revenues, stock-based compensation expense and Alios expenses related to the accounting for the collaboration with Vertex, to be in the range of $1.03 billion to $1.13 billion. This guidance was initially established on February 2, 2012.

In this press release, Vertex's financial results and financial guidance are provided both in accordance with accounting principles generally accepted in the United States (GAAP) and using certain non-GAAP financial measures. In particular, Vertex provides its second quarter and first half 2012 and 2011 net income (loss) excluding stock-based compensation expense, restructuring expense, inventory reserve, any revenues and expenses related to certain September 2009 financial transactions, and any items related to Vertex’s collaboration with Alios. These results are provided as a complement to results provided in accordance with GAAP because management believes these non-GAAP financial measures help indicate underlying trends in the company's business, are important in comparing current results with prior period results and provide additional information regarding its financial position. Management also uses these non-GAAP financial measures to establish budgets and operational goals that are communicated internally and externally, and to manage the company's business and to evaluate its performance. A reconciliation of the other non-GAAP financial results to GAAP financial results is included in the attached financial statements.

The company has consolidated the financial statements of its collaborator Alios BioPharma, Inc., as of June 30, 2012 and December 31, 2011, for the three and six months ended June 30, 2012, and for the period from June 13, 2011 through June 30, 2011. The company’s interest and obligations with respect to Alios’ assets and liabilities are limited to those accorded to the company in its collaboration agreement with Alios. Restricted cash and cash equivalents (Alios) reflects Alios’ cash and cash equivalents, which Vertex does not have any interest in and which will not be used to fund the collaboration. Increases (decreases) in the fair value of contingent milestone and royalty payments result in gains (losses) attributable to the noncontrolling interest (Alios), which decrease (increase) net income attributable to Vertex on the Consolidated Statements of Operations Data.

In the first half of 2011, a portion of the collaborative revenues, the change in fair value of derivative instruments and a portion of the net interest expense reflected in the Consolidated Statements of Operations Data relate to two financial transactions that the company entered into in September 2009 relating to milestone payments under the company’s collaboration agreement with Janssen Pharmaceutica, N.V. In the first half of 2011, the company earned $50.0 million in milestone payments from its collaborator, Janssen, which are reflected in total collaborative revenues in the Consolidated Statements of Operations Data.

The intangible assets, the goodwill and the deferred tax liability reflected in the Condensed Consolidated Balance Sheets Data relate to the company’s acquisition of ViroChem Pharma Inc. in 2009 and the company’s collaboration agreement with Alios in June 2011.

Shares used in Non-GAAP net income (loss) per diluted share attributable to Vertex common shareholders were 224,124,000 and 204,413,000 for the three months ended June 30, 2012 and 2011, respectively, and 221,694,000 and 203,377,000 for the six months ended June 30, 2012 and 2011, respectively.

Vertex creates new possibilities in medicine. Our team discovers, develops and commercializes innovative therapies so people with serious diseases can lead better lives.

Vertex scientists and our collaborators are working on new medicines to cure or significantly advance the treatment of hepatitis C, cystic fibrosis, rheumatoid arthritis, epilepsy and other life-threatening diseases.

Founded more than 20 years ago in Cambridge, Mass., we now have ongoing worldwide research programs and sites in the U.S., U.K. and Canada. Today, Vertex has more than 2,000 employees around the world, and magazine named Vertex number one on its 2011 list of Top Employers in the life sciences.

Vertex's press releases are available at .

KALYDECO (ivacaftor) is indicated for the treatment of cystic fibrosis (CF) in patients age 6 and older who have a G551D mutation in the gene.

KALYDECO is not effective in patients with CF who are homozygous for the mutation in the CFTR gene. KALYDECO has not been studied in other populations of patients with CF.

Therefore, use of KALYDECO in these patients is not recommended.

KALYDECO is contraindicated in any patient with hypersensitivity to the active substance or to any of the excipients.

Moderate elevations in liver function tests (transaminases) are common in subjects with CF. Overall, the incidence and clinical features of transaminase elevations in clinical trials was similar between subjects in the ivacaftor and placebo treatment groups. In the subset of patients with a medical history of elevated transaminases, increases have been reported more frequently in patients receiving KALYDECO compared to placebo. Therefore, liver function tests are recommended prior to initiating KALYDECO, every 3 months during the first year of treatment, and annually thereafter. Patients who develop unexplained increased transaminase levels during treatment should be closely monitored until the abnormalities resolve and consideration should be given to the continuation of treatment after assessment of the individual benefits and risks.

Ivacaftor is a substrate of CYP3A4 and CYP3A5 isoenzymes. Medicinal products that inhibit or induce CYP3A activity, may impact the pharmacokinetics of ivacaftor. Ivacaftor is a weak CYP3A inhibitor and may modify the pharmacokinetics of medicinal products metabolized through the CYP3A system. studies indicated that ivacaftor has the potential to inhibit P-glycoprotein (P-gp) and CYP2C9. The dose of KALYDECO must be adjusted when concomitantly used with potent and moderate CYP3A inhibitors. Exposure to ivacaftor is reduced by the concomitant use of CYP3A inducers, therefore potentially resulting in loss of efficacy of KALYDECO.

The most common adverse reactions in patients treated with KALYDECO were abdominal pain (stomach ache), diarrhea, dizziness, rash, upper respiratory tract reactions (including common cold, nasal congestion, redness of the throat, sore throat, runny nose, sinus congestion, and nose and throat inflammation), headache and bacteria in sputum. Two patients reported a serious adverse reaction of abdominal pain.

Please see full U.S. Prescribing Information for KALYDECO at

INCIVEK® (telaprevir) is a prescription medicine used with the medicines peginterferon alfa and ribavirin to treat chronic (lasting a long time) hepatitis C genotype 1 infection in adults with stable liver problems, who have not been treated before or who have failed previous treatment. It is not known if INCIVEK is safe and effective in children under 18 years of age.

INCIVEK should always be taken in combination with peginterferon alfa and ribavirin. Ribavirin may cause birth defects or death of an unborn baby. Therefore, a patient should not take INCIVEK combination treatment if she is pregnant or may become pregnant, or if he is a man with a sexual partner who is pregnant. Patients must use two forms of effective birth control during treatment and for the 6 months after treatment with these medicines. Hormonal forms of birth control, including birth control pills, vaginal rings, implants or injections, may not work during treatment with INCIVEK.

INCIVEK and other medicines can affect each other and can also cause side effects that can be serious or life threatening. There are certain medicines patients cannot take with INCIVEK combination treatment. Patients should tell their healthcare providers about all the medicines they take, including prescription and non-prescription medicines, vitamins and herbal supplements.

INCIVEK can cause serious side effects including skin reactions, rash and anemia that can be severe. The most common side effects of INCIVEK include itching, nausea, diarrhea, vomiting, anal or rectal problems, taste changes and tiredness. There are other possible side effects of INCIVEK, and side effects associated with peginterferon alfa and ribavirin also apply to INCIVEK combination treatment. Patients should tell their healthcare providers about any side effect that bothers them or doesn't go away.

Please see full Prescribing Information for INCIVEK including the Medication Guide, available at 

This press release contains forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995, including, without limitation, Dr. Leiden's statements in the second and third paragraphs of the press release, the information provided in the two paragraphs following the statement "This section contains forward-looking guidance about the financial outlook for Vertex Pharmaceuticals" and statements regarding (i) ongoing label-expansion studies and recent data from a study of KALYDECO and VX-809 in combination supporting Vertex’s goal to help more people with cystic fibrosis; (ii) the company’s flexibility in the development of multiple all-oral approaches to treatment of hepatitis C; (iii) the expectation that full-year 2012 INCIVEK net revenues will be in the range of $1.1 billion to $1.25 billion; (iv) information regarding the company’s ongoing and planned studies, including studies to evaluate KALYDECO, KALYDECO in combination with VX-809, INCIVEK, ALS-2200, VX-509 and VX-787; (v) expectations regarding the availability of data from ongoing studies, including the viral kinetic study of ALS-2158, the ongoing Phase 2 study of VX-661, the ongoing Phase 2 study of VX-787 and the BID study of INCIVEK and (vi) the company’s plans, pending results from the BID study, to submit an sNDA for INCIVEK. While Vertex believes the forward-looking statements contained in this press release are accurate, there are a number of factors that could cause actual events or results to differ materially from those indicated by such forward-looking statements. Those risks and uncertainties include, among other things, that the company's expectations regarding its 2012 INCIVEK net revenues and/or operating expenses may be incorrect (including because one or more of the company's assumptions underlying its revenue or expense expectations may not be realized), that the outcomes of Vertex's ongoing and planned clinical studies may not be favorable, that the initiation of planned studies may be delayed or prevented, and other risks listed under Risk Factors in Vertex's annual report and quarterly reports filed with the Securities and Exchange Commission and available through the company's website at . Vertex disclaims any obligation to update the information contained in this press release as new information becomes available.

Vertex will host a conference call and webcast today, July 30, 2012 at 5:00 p.m. ET to review financial results and recent developments. The conference call will be webcast live, and a link to the webcast may be accessed from the ‘Events & Presentations' page of Vertex's website at .

To listen to the live call on the telephone, dial 1-877-250-8889 (United States and Canada) or 1-720-545-0001 (International). To ensure a timely connection, it is recommended that users register at least 15 minutes prior to the scheduled webcast.

The conference ID number for the live call and replay is 10939223.

The call will be available for replay via telephone commencing July 30, 2012 at 8:00 p.m. ET running through 5:00 p.m. ET on August 13, 2012. The replay phone number for the United States and Canada is 1-855-859-2056. The international replay number is 1-404-537-3406.

Following the live webcast, an archived version will be available on Vertex's website until 5:00 p.m. ET on August 6, 2012. Vertex is also providing a podcast MP3 file available for download on the Vertex website at .

(VRTX-GEN)