8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC  20549

FORM 8-K

Current Report Pursuant

to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  May 18, 2016

INNOVIVA, INC.

(Exact Name of Registrant as Specified in its Charter)

Delaware	000-30319	94-3265960
(State or Other Jurisdiction of	(Commission File Number)	(I.R.S. Employer Identification
Incorporation)		Number)

951 Gateway Boulevard
South San Francisco, California 94080
(650) 238-9600

(Addresses, including zip code, and telephone numbers, including area code, of principal executive offices)

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

oWritten communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

oSoliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

oPre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

oPre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 7.01. Regulation FD Disclosure.

On May 18, 2016, at the Annual Congress of the American Thoracic Society Conference (the “ATS Conference”), GlaxoSmithKline (“GSK”) presented three posters containing information about (i) the impact of vilanterol fluticasone furoate (or their combination) on exacerbations in patients with chronic obstructive pulmonary disease (“COPD”) with moderate airflow obstruction, (ii) reported pneumonia events in the Study to Understand Mortality and MorbidITy (“SUMMIT”) trial and (iii) the results of a randomized, 12 week study testing ANORO® ELLIPTA® (umeclidinium/vilanterol, ‘UMEC/VI’) as a Step-Up Therapy from Tiotropium in Moderate Symptomatic COPD.  The posters are furnished as Exhibit 99.1, Exhibit 99.2 and Exhibit 99.3 to this Current Report on Form 8-K and are incorporated by reference herein.

The information disclosed in this Item 7.01 is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities under that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act except as expressly set forth by specific reference in such filing.

Item 8.01. Other Events.

On May 18, 2016, GSK and Innoviva, Inc. (“Innoviva”) announced that GSK presented data at the ATS Conference from the two pre-specified analyses from the SUMMIT trial.  The press release relating to this announcement is filed as Exhibit 99.4 to this Current Report on Form 8-K and is incorporated by reference herein.

In addition, on May 18, 2016, GSK and Innoviva announced that GSK presented data at the ATS Conference regarding the results of the investigation of the efficacy and safety of UMEC/VI in patients with moderate COPD who continued to have symptoms while on tiotropium monotherapy 18 mcg.  The press release relating to this announcement is filed as Exhibit 99.5 to this Current Report on Form 8-K and is incorporated by reference herein.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

99.1	Poster
99.2	Poster
99.3	Poster
99.4	Press Release dated May 18, 2016
99.5	Press Release dated May 18, 2016

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	INNOVIVA, INC.
Date: May 18, 2016	By:	/s/ Eric d’Esparbes
		Eric d’Esparbes
		Chief Financial Officer

EX-99.1

Exhibit 99.1

1New York-Presbyterian Hospital/Weil Cornell Medical Center, New York, NY, USA; 2University of Michigan Health System, Ann Arbor, MI, USA; 3GSK R&D, Stockley Park, Middlesex, UK 4Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA; 5GSK R&D, Research Triangle Park, NC, USA; 6University of Edinburgh, Edinburgh, UK 7University of Manchester and South Manchester University Hospital NHS Foundation Trust, Manchester, UK; 8University Hospital Aintree, Liverpool, UK Impact of vilanterol, fluticasone furoate, or their combination on exacerbations in COPD patients with moderate airflow obstruction: the SUMMIT trial Martinez FJ1,2, Anderson JA3, Brook RD2, Celli B4, Crim C5, Kilbride S3, Newby DE6, Vestbo J7, Yates JC5, Calverley PMA8 Eligible patients were current or former smokers, aged 40–80 years with a post-bronchodilator forced expiratory volume in 1 second (FEV1) ≥50% and ≤70% of the predicted value, a ratio of post-bronchodilator FEV1 to forced vital capacity ≤0.70, and ≥2 on the modified Medical Research Council dyspnea scale. Patients had a history of cardiovascular disease (coronary artery disease, peripheral arterial disease, stroke, myocardial infarction, or diabetes mellitus with target organ disease) or increased cardiovascular risk (≥60 years and receiving medication for ≥2 of the following: hypercholesterolemia, hypertension, diabetes mellitus, or peripheral arterial disease). LABAs and ICSs were discontinued at least 48 hours prior to study entry. All patients were randomized to receive one of the following (once daily): placebo, FF 100μg, VI 25µg, or FF/VI 100/25μg. The rate of ECOPD was analyzed using a negative binomial model, with the logarithm of time on treatment as an offset variable, and covariates of age, gender, and the number of exacerbations reported in the 12 months prior to screening (0, 1, ≥2): moderate/severe ECOPD (requiring treatment with antibiotics and/or SCS or requiring hospitalization), ECOPD requiring hospitalization, and ECOPD requiring SCS. In patients with moderate chronic airflow obstruction, treatment with FF/VI led to a reduction in the risk of a first ECOPD and in the rate of moderate/severe ECOPD. A similar effect was seen for ECOPD requiring hospitalization or SCS. Reductions in the rate of ECOPD due to FF/VI were consistent across a wide range of subgroups, including those patients with no previous exacerbations in the year before the study, and those with an FEV1 <60% or ≥60% of the predicted value. A6786 (P16) The lead author, F Martinez, declares the following real/perceived conflicts of interest during the last 3 years: non-financial support from GSK, personal fees from Forest, Janssen, Nycomed/Takeda, Actelion, Amgen, AstraZeneca, Carden Jennings, CSA Medical, Ikaria, Genentech, Merck, Pearl, Pfizer, Roche, American College of Chest Physicians, CME Incite, Center for Healthcare Education, Inova Health System, MedScape, Miller Medical, National Association for Continuing Education, Paradigm, Peer Voice, Projects in Knowledge, St. John's Hospital, St. Mary's Hospital, University of Illinois Chicago, University of Virginia, UpToDate, Wayne State University, Boehringer Ingelheim, Bayer, Merion, Informa, GSK, Western Society of Allergy and Clinical Immunology, Theravance, Novartis, Haymarket, Annenberg, Academic CME, Integritas, Unity, and Sunovion; the last author, P Calverley, declares the following real/perceived conflicts of interest during the last 3 years: personal fees from GSK, Boehringer-Ingelheim, AstraZeneca, Takeda. This study was funded by GSK (HZC113782/NCT01313676). Editorial support was provided by Emma McConnell, PhD (in the form of assembling the first draft of the poster under the direction of the authors) and Rebecca Seth (in the form of redrawing figures and formatting the poster) at Gardiner-Caldwell Communications (Macclesfield), and was funded by GSK. Placebo n=4111 FF n=4135 VI n=4118 FF/VI n=4121 Mean age, years ± SD 65 ± 8 65 ± 8 65 ± 8 65 ± 8 Male, n (%) 3071 (75) 3053 (74) 3053 (74) 3112 (76) Current smokers, n (%) 1936 (47) 1945 (47) 1929 (47) 1868 (45) Smoking history, pack-years ± SD 41 ± 25 41 ± 24 41 ± 24 40 ± 24 Post-bronchodilator FEV1, L ± SD 1.70 ± 0.40 1.70 ± 0.41 1.70 ± 0.40 1.70 ± 0.40 Predicted post-bronchodilator FEV1, % ± SD 59.7 ± 6.1 59.6 ± 6.1 59.7 ± 6.1 59.7 ± 6.1 FEV1 reversibility* ± SD 8.4 ± 12.1 7.9 ± 11.7 8.3 ± 12.2 8.0 ± 11.8 Prior COPD therapy, n (%) LABA LAMA ICS 1417 (34) 659 (16) 1349 (33) 1432 (35) 619 (15) 1369 (33) 1464 (36) 634 (15) 1374 (33) 1456 (35) 638 (15) 1394 (34) Exacerbations in 12 months pre-study, n (%) 0 1 2+ 2447 (60) 1044 (25) 620 (15) 2546 (62) 990 (24) 599 (14) 2500 (61) 988 (24) 630 (15) 2528 (61) 998 (24) 595 (14) Long-acting beta agonists (LABAs), inhaled corticosteroids (ICSs), and their combination (ICS/LABA) have been shown to decrease exacerbations of chronic obstructive pulmonary disease (ECOPD) in patients with severe chronic airflow obstruction. Their efficacy in reducing ECOPD in patients with moderate chronic airflow obstruction remains unclear. SUMMIT was a prospective, multicenter, randomized, double-blind trial in 16,485 patients with moderate COPD who had, or were at high-risk for, cardiovascular disease; the primary objective was to evaluate the impact of fluticasone furoate (FF)/ vilanterol (VI) on all-cause mortality. *As a percentage of pre-bronchodilator FEV1 LAMA, long-acting muscarinic-agonist; SD, standard deviation Exacerbations Compared with placebo, the risk of a first moderate/severe ECOPD was decreased 21% by combined FF/VI treatment (95% CI: 14–27) and 9% by VI (95% CI: 1–16), but not by FF (3% reduction, 95% CI: -5–10; Table 2). All therapies led to a reduction in the rate of moderate to severe ECOPD (FF/VI 29%, VI 10%, and FF 12%; Table 2). All therapies also led to a reduction in the rate of ECOPD requiring hospitalization (FF/VI 27%, VI 20%, and FF 18%), or SCS (FF/VI 45%, VI 18%, and FF 25%) compared with placebo (Table 2). Table 1. Selected baseline characteristics in SUMMIT (n=16,485) Figure 2. Rate of hospitalized ECOPD by subgroups Background Methods Conclusions Acknowledgments Presented at the ATS International Conference, San Francisco, CA, USA, 13–18 May 2016 Aims The current analysis evaluated the impact of treatment on moderate-to-severe ECOPD, hospitalized ECOPD, and ECOPD requiring systemic corticosteroids (SCS), which were all predefined endpoints of SUMMIT. Patients Most patients were middle-aged (65 ± 8 years) men (75%), with 47% active smokers and a mean post-bronchodilator FEV1 60% of the predicted value (interquartile range 54–65%; Table 1). In the 12 months prior to study entry, 39% of patients had experienced ECOPD while 15% had suffered two or more episodes. Mortality All-cause mortality (primary endpoint) was not significantly affected by combined FF/VI therapy (hazard ratio vs placebo 0.88, 95% confidence interval [CI]: 0.74–1.04; p=0.14) or the individual treatment components. Results Placebo n=4111 FF n=4135 VI n=4118 FF/VI n=4121 Moderate/severe ECOPD Reduction in risk of first ECOPD, % (95% CI) 3 (-5–10) 9 (1–16) 21 (14–27) p-value (vs placebo) 0.470 0.023 <0.001 Annual ECOPD rate 0.35 0.31 0.31 0.25 Reduction in ECOPD rate, % (95% CI) 12 (4–19) 10 (2–18) 29 (22–35) p-value (vs placebo) 0.004 0.017 <0.001 ECOPD requiring hospitalization Reduction in risk of first ECOPD, % (95% CI) 12 (-2–25) 15 (2–27) 22 (8–33) p-value (vs placebo) 0.086 0.031 0.002 Annual ECOPD rate 0.07 0.06 0.06 0.05 Reduction in ECOPD rate, % (95% CI) 18 (3–31) 20 (5–32) 27 (13–39) p-value (vs placebo) 0.023 0.013 <0.001 ECOPD requiring SCS Reduction in risk of first ECOPD, % (95% CI) 15 (6–23) 14 (5–22) 35 (27–41) p-value (vs placebo) 0.002 0.003 <0.001 Annual ECOPD rate 0.23 0.17 0.19 0.13 Reduction in ECOPD rate, % (95% CI) 25 (15–33) 18 (8–27) 45 (38–52) p-value (vs placebo) <0.001 <0.001 <0.001 Table 2. Treatment effect on exacerbations Figure 1. Rate of moderate/severe ECOPD by subgroups Figure 3. Rate of ECOPD requiring SCS by subgroups In a post-hoc subgroup analysis, FF/VI decreased the rate of moderate/severe ECOPD (Figure 1), and ECOPD requiring hospitalization (Figure 2) or SCS (Figure 3) versus placebo to a similar extent in patients with an FEV1 <60% or ≥60% of the predicted value, and in patients with and without a prior exacerbation history. CV, cardiovasular; RR, rate ratio 0.25 0.5 1 2 4 Favors FF/VI Favors Placebo 60–80, CV risk, not disease (n=2285) African-American/African heritage (n=129) 0.71 (0.65–0.78) 0.64 (0.57–0.72) 0.81 (0.71–0.93) 0.75 (0.55–1.04) 0.70 (0.60–0.82) 0.68 (0.53–0.87) 0.73 (0.64–0.83) 0.69 (0.61–0.79) 0.76 (0.62–0.94) 0.68 (0.57–0.81) 0.71 (0.64–0.79) 0.71 (0.59–0.84) 0.76 (0.38–1.53) 0.59 (0.48–0.74) 0.53 (0.37–0.77) 0.75 (0.68–0.82) 0.71 (0.58–0.87) 0.76 (0.28–2.06) 0.78 (0.68–0.91) 0.61 (0.49–0.76) 0.70 (0.53–0.91) 0.72 (0.64–0.81) 0.72 (0.59–0.87) 0.71 (0.63–0.80) 0.69 (0.60–0.80) 0.69 (0.58–0.82) 0.74 (0.61–0.91) RR (95% CI) Current smoker (n=3804) Former smoker (n=4428) <55 (n=824) ³ 55 to <65 (n=2819) ³ 65 to <75 (n=3523) ³ 75 (n=1066) 60–80, CV disease (n=4096) 40–60, CV disease (n=1761) Female (n=2049) Male (n=6183) Hispanic/Latino (n=588) Not Hispanic/Latino (n=7644) White (n=6660) Asian (n=1360) Other (n=83) USA (n=1293) Asia (n=1337) Europe 1 (n=2643) Europe 2 (n=2314) Rest-of-world (n=645) <60% (n=4533) ³ 60% (n=3698) ³ 2 (n=1215) ³ 1 (n=1132) 1 (n=2042) 0 (n=4975) 0 (n=7100) 0.70 (0.64–0.78) 0.74 (0.59–0.93) 0.73 (0.66–0.80) Age group Smoking status CV entry criteria Gender Ethnicity Region % predicted FEV 1 Hospitalized for an exacerbation Race Moderate/severe exacerbation RR Overall 0.25 0.5 1 2 4 60–80, CV risk, not disease (n=2285) African-American/African heritage (n=129) 0.73 (0.61–0.87) 0.68 (0.54–0.86) 0.79 (0.60–1.03) 0.81 (0.40–1.64) 0.84 (0.60–1.18) 0.66 (0.43–1.00) 0.67 (0.53–0.87) 0.75 (0.60–0.94) 0.67 (0.43–1.04) 0.69 (0.48–0.99) 0.74 (0.61–0.90) 0.68 (0.46–1.00) 3.01 (0.59–15.30) 0.51 (0.36–0.73) 0.47 (0.19–1.15) 0.82 (0.67–1.00) 0.90 (0.58–1.39) 0.34 (0.02–5.59) 0.80 (0.58–1.11) 0.52 (0.37–0.73) 1.02 (0.55–1.87) 0.77 (0.62–0.96) 0.77 (0.54–1.11) 0.70 (0.54–0.90) 0.65 (0.49–0.87) 0.84 (0.60–1.18) 0.68 (0.49–0.96) RR (95% CI) Overall Current smoker (n=3804) Former smoker (n=4428) <55 (n=824) ³ 55 to <65 (n=2819) ³ 65 to <75 (n=3523) ³ 75 (n=1066) 60–80, CV disease (n=4096) 40–60, CV disease (n=1761) Female (n=2049) Male (n=6183) Hispanic/Latino (n=588) Not Hispanic/Latino (n=7644) White (n=6660) Asian (n=1360) Other (n=83) USA (n=1293) Asia (n=1337) Europe 1 (n=2643) Europe 2 (n=2314) Rest-of-world (n=645) <60% (n=4533) ³ 60% (n=3698) ³ 2 (n=1215) ³ 1 (n=1132) 1 (n=2042) 0 (n=4975) 0 (n=7100) 0.70 (0.57–0.86) 0.77 (0.56–1.06) 0.74 (0.62–0.89) Age group Smoking status CV entry criteria Gender Ethnicity Region % predicted FEV 1 Hospitalized for an exacerbation Race Moderate/severe exacerbation Favors FF/VI Favors Placebo RR 0.25 0.5 1 2 4 60–80, CV risk, not disease (n=2285) African-American/African heritage (n=129) 0.55 (0.48–0.62) 0.48 (0.41–0.56) 0.66 (0.54–0.80) 0.58 (0.37–0.91) 0.57 (0.45–0.71) 0.54 (0.38–0.77) 0.53 (0.45–0.64) 0.54 (0.45–0.64) 0.60 (0.45–0.80) 0.50 (0.39–0.64) 0.55 (0.47–0.63) 0.56 (0.44–0.71) 0.51 (0.21–1.25) 0.45 (0.34–0.60) 0.43 (0.27–0.67) 0.59 (0.52–0.68) 0.55 (0.43–0.70) 0.26 (0.07–0.94) 0.60 (0.48–0.76) 0.46 (0.35–0.62) 0.54 (0.38–0.77) 0.54 (0.46–0.63) 0.60 (0.45–0.79) 0.51 (0.43–0.60) 0.55 (0.45–0.68) 0.61 (0.48–0.77) 0.58 (0.44–0.77) RR (95% CI) Current smoker (n=3804) Former smoker (n=4428) <55 (n=824) ³ 55 to <65 (n=2819) ³ 65 to <75 (n=3523) ³ 75 (n=1066) Age group Smoking status CV entry criteria 60–80, CV disease (n=4096) 40–60, CV disease (n=1761) Gender Female (n=2049) Male (n=6183) Ethnicity Hispanic/Latino (n=588) Not Hispanic/Latino (n=7644) White (n=6660) Asian (n=1360) Other (n=83) Region USA (n=1293) Asia (n=1337) Europe 1 (n=2643) Europe 2 (n=2314) Rest-of-world (n=645) % predicted FEV 1 <60% (n=4533) ³ 60% (n=3698) Hospitalized for an exacerbation ³ 2 (n=1215) ³ 1 (n=1132) 1 (n=2042) 0 (n=4975) 0 (n=7100) Race Moderate/severe exacerbation 0.54 (0.47–0.62) 0.59 (0.45–0.78) 0.56 (0.49–0.63) Favors FF/VI Favors Placebo RR Overall

EX-99.2

Exhibit 99.2

1GSK, Research Triangle Park, NC, USA; 2GSK, Uxbridge, UK; 3University of Michigan Health System, Ann Arbor, MI, USA; 4University Hospital Aintree, Liverpool, UK 5Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA; 6New York Presbyterian Hospital / Weill Cornell Medical Center, New York, NY, USA 7University of Edinburgh, Edinburgh, UK; 8University of Manchester and South Manchester University Hospital NHS Foundation Trust, Manchester, UK Reported pneumonia events in the SUMMIT trial Crim C1, Anderson JA2, Brook RD3, Calverley PMA4, Celli B5, Kilbride S2, Martinez FJ6, Newby DE7, Yates J1, Vestbo J8 SUMMIT was a prospective, double-blind, parallel-group, placebo-controlled, event-driven, randomized trial (1368 centers; 43 countries). Participants were current or former smokers aged 40–80 years, with a history of COPD and a post-bronchodilator FEV1 ≥50 and ≤70% of the predicted value, a post-bronchodilator FEV1/forced vital capacity ≤0.70, and ≥2 on the modified Medical Research Council dyspnea scale. Patients had a history of CVD (coronary artery disease, peripheral arterial disease, prior stroke or myocardial infarction, or diabetes mellitus with target organ disease) or increased cardiovascular risk (≥60 years and receiving medications for ≥2 of the following: hypercholesterolemia, hypertension, diabetes mellitus, or peripheral vascular disease). ICS and LABA treatments were discontinued before study entry. Participants were then randomized to receive one of the following (once daily): placebo fluticasone furoate (FF) 100μg vilanterol (VI) 25µg FF/VI 100/25μg. Adverse events (AEs) were collected at each study visit by the study investigators and coded using the Medical Dictionary for Regulatory Activities (MedDRA® version 18.0; International Federation of Pharmaceutical Manufacturers and Associations, Geneva, Switzerland). Reported pneumonia-related events were not increased in the ICS-containing arms (FF and FF/VI) compared with placebo. There was no difference in the time to first on-treatment pneumonia AE in ICS-containing arms compared with placebo. These data suggest that the pneumonia risk with ICS use may be of less concern in patients with COPD with moderate airflow limitation than previously thought. A3575 (P994) The authors declare the following real/perceived conflicts of interest during the last 3 years: CC/JA/SK/JY are GSK employees; RDB reports personal fees from GSK; PMAC reports personal fees from GSK, BI, AstraZeneca, Takeda; BC reports personal fees from GSK, BI, AstraZeneca, Almirall, Rox Medical, Novartis; FJM reports non-financial support from GSK and personal fees from Forest, Janssen, Nycomed/Takeda, Actelion, Amgen, AstraZeneca, Carden Jennings, CSA Medical, Ikaria, Genentech, Merck, Pearl, Pfizer, Roche, American College of Chest Physicians, CME Incite, Center for Healthcare Education, Inova Health System, MedScape, Miller Medical, National Association for Continuing Education, Paradigm, Peer Voice, Projects in Knowledge, St. John's Hospital, St. Mary's Hospital, University of Illinois Chicago, University of Virginia, UpToDate, Wayne State University, BI, Bayer, Merion, Informa, GSK, Western Society of Allergy and Clinical Immunology, Theravance, Novartis, Haymarket, Annenberg, Academic CME, Integritas, Unity, Sunovion; DEN reports personal fees from GSK; JV reports personal fees from GSK, Chiesi Pharmaceuticals, BI, Novartis, AstraZeneca. This study was funded by GSK (HZC113782/NCT01313676). Editorial support was provided by Emma McConnell, PhD ((in the form of assembling the first draft of the poster under the direction of the authors) and Rebecca Seth (in the form of redrawing figures and formatting the poster) at Gardiner-Caldwell Communications (Macclesfield) and was funded by GSK. Patients with chronic obstructive pulmonary disease (COPD) are at increased risk for pneumonia. Previous studies have shown that pneumonia risk in COPD is partly related to the severity of airflow limitation. For patients receiving inhaled corticosteroid (ICS)-containing regimens, the risk of pneumonia is increased in those with severe (forced expiratory volume in 1 second [FEV1] ≥30% and <50% predicted) and very severe (FEV1 <30% predicted) airflow obstruction. The Study to Understand Mortality and MorbidITy in COPD (SUMMIT) investigated the effects of an ICS, a long-acting β-agonist (LABA), and the combination in patients with moderate COPD who had, or were at high risk for, cardiovascular disease (CVD). The risk of pneumonia in patients with COPD receiving an ICS, a LABA, or the combination was assessed as a safety endpoint in SUMMIT. Participants 16,568 patients underwent randomization and took study medication to be included in the safety population. Baseline characteristics were balanced across all treatment arms (Table 2). Pneumonias Total exposure to study medication was higher in the FF/VI treatment group compared with FF and VI treatment groups, and placebo. The incidence and rates of pneumonia AEs and pneumonia serious AEs (SAEs) were comparable in the FF-containing groups and placebo (Table 3). On-treatment and post-treatment fatal pneumonia SAEs occurred in <1% of patients in all treatment groups (Table 3). Treatment did not increase the rate of adjudicated on-treatment deaths compared with placebo (Table 3). Table 2. Selected screening characteristics in SUMMIT (safety population) Aims Methods Results Conclusions Acknowledgements Presented at the ATS International Conference, San Francisco, CA, USA, 13–18 May 2016 Placebo n=4131 FF 100μg n=4157 VI 25µg n=4140 FF/VI 100/25μg n=4140 Mean age, years ± SD 65 ± 8 65 ± 8 65 ± 8 65 ± 8 Male, n (%) 3081 (75) 3059 (74) 3069 (74) 3121 (75) BMI, kg/m2 ± SD 28 ± 6 28 ± 6 28 ± 6 28 ± 6 Current smokers, n (%) 1949 (47) 1952 (47) 1941 (47) 1875 (45) Smoking history, pack-years ± SD 41 ± 25 41 ± 24 41 ± 24 40 ± 24 Predicted post-bronchodilator FEV1, % ± SD 60 ± 6 60 ± 6 60 ± 6 60 ± 6 Pre-study COPD therapy, % LABA 35 35 36 35 LAMA 16 15 15 15 ICS 33 33 33 34 Patients who were withdrawn were censored at their treatment end date + 1 95% Confidence intervals provided at yearly intervals ‘No. without event’ denotes the number of patients who have not had an event and are continuing follow-up immediately after the time point Placebo n=4131 FF 100μg n=4157 VI 25µg n=4140 FF/VI 100/25μg n=4140 Total exposure to study medication, years 6614 6889 6955 7038 Pneumonia terms* Patients with on-treatment AEs Rate (number of AEs) 214 (5%) 3.84 (254) 228 (5%) 4.24 (292) 163 (4%) 2.77 (193) 237 (6%) 3.95 (278) Patients with on-treatment SAEs Rate (number of AEs) 127 (3%) 2.22 (147) 146 (4%) 2.51 (173) 104 (3%) 1.64 (114) 140 (3%) 2.24 (158) Patients with on and post-treatment fatal SAEs 16 (<1%) 23 (<1%) 13 (<1%) 23 (<1%) Patients with on-treatment fatal SAEs Rate (number of AEs) 10 (<1%) 0.15 (10) 17 (<1%) 0.25 (17) 5 (<1%) 0.07 (5) 16 (<1%) 0.23 (16) Patients with post-treatment fatal SAEs 6 (<1%) 6 (<1%) 8 (<1%) 7 (<1%) Pneumonia death† Total deaths 16 (<1%) 19 (<1%) 13 (<1%) 24 (<1%) On-treatment deaths 9 (<1%) 10 (<1%) 6 (<1%) 13 (<1%) Rate of on-treatment deaths 0.14 0.15 0.09 0.18 *Terms from the AESI grouping of pneumonia. Includes one SAE that was not fatal in the FF arm with verbatim term of ‘non pulmonary tuberculosis' that coded to preferred term tuberculosis †Cause of death as adjudicated by the Clinical Endpoint committee. This includes the following classifications: pulmonary (COPD with pneumonia) and other (pneumonia) Table 3. Summary of pneumonias in safety population Figure 1. Time to first on-treatment (a) pneumonia AESI or (b) pneumonia serious AESI Pneumonia Tuberculosis Lung consolidation Pneumonia moraxella Lobar pneumonia Pneumonitis Pneumonia streptococcal Pneumonia staphylococcal Bronchopneumonia Pneumonia aspiration Empyema Pneumonia viral Pulmonary tuberculosis Pneumonia bacterial Pneumonia klebsiella Tuberculous pleurisy Lung infection Pneumonia haemophilus Table 1. Listing of AE preferred terms for pneumonia events in SUMMIT BMI, body mass index; LABD, long-acting bronchodilator; LAMA, long-acting muscarinic antagonist; SD, standard deviation. Combination products are included in all applicable respiratory medication classes. Time to pneumonia AEs There was no difference in the time to first on-treatment AE or SAE in the FF-containing treatment groups compared with placebo (Figure 1). Treatment effect on the risk of pneumonia was assessed by comparing the incidence, rate, and Kaplan Meier curves for pneumonia. Adverse events of special interest (AESIs) were those associated with the known pharmacologic action of ICS or LABA therapy. For pneumonia, this used a pre-defined list of preferred terms from MedDRA that allowed a comprehensive review of pneumonia data (Table 1). Rate represents the number of events per 100 subject-years of exposure, calculated as: (total number of AEs*100)/total duration of exposure in years.

EX-99.3

Exhibit 99.3

aMean value of assessments 23 and 24 h post dose prior to Day 1 (both groups on TIO); bcalculated from the mean number of puffs between the first day [the latest of 27 days before Visit 2 and the day after Visit 1] and the day of Visit 2; cUMEC/VI, n=240; TIO, n=245; dUMEC/VI, n=242; TIO, n=245. BDI, baseline dyspnea index. Data reported at screening unless otherwise stated. Values are reported as mean (SD) unless otherwise stated. SD, standard deviation. Age, years 64.5 (8.7) 64.3 (8.7) Sex, male, n (%) 163 (66) 160 (65) Current smoker, n (%) 129 (52) 118 (48) Smoking pack years 38.6 (20.5) 40.4 (20.2) FEV1, La 1.715 (0.471) 1.673 (0.443) Percent predicted FEV1, % 59.8 (5.5) 59.4 (5.3) mMRC dyspnea score at screening 1.9 (0.6) 1.8 (0.6) mMRC dyspnea score at randomization 1.8 (0.6) 1.8 (0.6) GOLD category (mMRC criteria), % A/B 23/65 27/59 C/D 1/11 1/13 Rescue medication use, puffs/dayb 1.1 (1.4) 1.2 (1.8) BDI focal score at Day 1c 6.5 (1.3) 6.5 (1.4) SGRQ total score at Day 1d 41.3 (14.4) 42.3 (14.8) CAT score at Day 1 16.7 (6.2) 16.4 (6.5) TIO (N=247) UMEC/VI (N=247) Table 1. Patient demographics and baseline characteristics (ITT population) OR, ratio. Figure 3. TDI responder analysis (ITT population) Day 1 Day 84 Figure 2. Serial FEV1 measurements 0—24 h post dose (TFH population) On-treatment AEs 75 (30) 77 (31) On-treatment drug-related AEs 3 (1) 8 (3) AEs leading to withdrawal 5 (2) 4 (2) On-treatment non-fatal serious AEs 6 (2) 6 (2) On-treatment fatal serious AEsa 1 (<1) 0 AEs reported in >3% patients in either treatment arm Nasopharyngitis 18 (7) 17 (7) Headache 16 (6) 18 (7) AEs of special interest Cardiovascular eventsb 4 (2) 3 (1) Pneumonia 1 (<1) 0 Patients experiencing a COPD exacerbation, n (%) 2 (<1) 8 (3) aDeath due to cerebrovascular accident, treatment unrelated; bevents included: cardiac arrhythmias, cardiac failure, ischemic heart disease, central nervous system hemorrhages, and cerebrovascular conditions. TIO (N=247) UMEC/VI (N=247) n (%) Table 3. Summary of AEs and COPD exacerbations LS, least squares. Figure 1. Change from baseline in trough FEV (ITT population) • UMEC/VI significantly improved lung function over 24 h versus TIO in patients with moderate COPD who remained symptomatic despite the regular use of TIO. • More patients were TDI responders with UMEC/VI versus TIO with comparable effects on health outcomes as measured by SGRQ and CAT scores. • The safety profiles of both treatments were similar. TDI scorea LS mean (SE) 2.3 (0.16) 1.9 (0.16) Difference (95% CI) 0.4 (-0.1, 0.8; p=0.083) SGRQ total scoreb LS mean change from baseline (SE) —4.41 (0.68) —4.21 (0.67) Difference (95% CI) —0.20 (-2.09, 1.68; p=0.834) CAT scorec LS mean change from baseline (SE) —2.10 (0.36) —1.84 (0.35) Difference (95% CI) —0.26 (-1.25, 0.72; p=0.603) Rescue medication use (puffs/day, Weeks 1—12) LS mean change from baseline (SE) —0.3 (0.04) —0.2 (0.04) Difference (95% CI) —0.1 (-0.2, 0.0; p=0.027) aUMEC/VI, n=226; TIO, n=233; bUMEC/VI, n=225; TIO, n=232; cUMEC/VI, n=233; TIO, n=235. SE, standard error. TIO UMEC/VI Table 2. TDI score, patient-reported outcomes and rescue medication use at Day 84 Presented at the Annual Congress of the American Thoracic Society (ATS), San Francisco, CA, USA, May 13—18, 2016 ELLIPTA® is a registered trademark of the GSK group of companies. HandiHaler® is a registered trademark of Boehringer Ingelheim International GmbH. 1 3 h post dose (73 mL; 95% CI: 24, 122; p=0.004 on Day 84) and at all other post-dose time points as early as 5 min versus TIO. • On Days 1 and 84, UMEC/VI produced a statistically significant improvement in FEV at The presenting author, EK, declares the following real or perceived conflicts of interest: served on advisory boards, speaker panels or received travel reimbursement from Amphastar, AstraZeneca, Forest, Ironwood, Merck, Mylan, Novartis, Pearl, Pfizer, Sanofi Aventis, Sunovion, Targacept, Teva, and Theravance; has conducted multicentre clinical research trials for approximately 70 pharmaceutical companies. CJK, DG, C-QZ, AC and WAF are employees of GlaxoSmithKline (GSK) and hold stocks/shares in GSK. This study was funded by GSK (NCT01899742; GSK identifier: 116960). Editorial support (in the form of writing assistance, assembling tables and figures, collating authors comments, grammatical editing, and referencing) was provided by Joanne Ashworth, at Fishawack Indicia Ltd, UK, and was funded by GSK. Demographics • Of the 739 enrolled patients, 494 were randomized to UMEC/VI or TIO (the intent-to- treat [ITT] population, n=247 in each treatment group). Most screen failures (82%) did not meet the percentage predicted FEV1 requirement. • Both groups had similar demographics and baseline characteristics (Table 1). 1. GOLD, Global strategy for the diagnosis, management and prevention of chronic obstructive pulmonary disease, http://www.goldcopd.org [accessed February 2016]; 2. Cazzola M, et al. Pulm Pharmacol Ther 2013;26:307—17; 3. Dransfield, MT, et al. Prim Care Respir J 2011;20:46—53; 4. Blair HA, Deeks ED. Drugs 2015;75:61—74. Acknowledgments References Conclusions 1 Lung function outcomes • UMEC/VI produced statistically significant improvements in trough FEV1 versus TIO at Day 85 (difference: 88 mL; 95% confidence interval [CI]: 45, 131; p<0.001) and all other time points (Figure 1). TDI score, patient-reported outcomes, and rescue medication use • At Day 84, clinically meaningful improvements in TDI, SGRQ, and CAT scores from baseline were seen in both treatment groups with no statistically significant differences between the groups (Table 2). • UMEC/VI significantly increased the odds of being a TDI responder (defined as a >1-unit improvement) versus a non-responder compared with TIO on Days 28 and 84 (Figure 3). • UMEC/VI resulted in a statistically significant reduction in rescue medication use compared with TIO (-0.1 puffs/day over 1—12 weeks; 95% CI: -0.2, 0.0; p=0.027). • UMEC/VI resulted in a greater increase in the percentage of rescue-free days compared with TIO (median difference: 2.3 days; 95% CI: 0.0, 4.8; p<0.01). identifier: 116960) performed over 12 weeks in 9 countries. • Patients completed a 4-week run-in period on open-label TIO before randomization. Inclusion/exclusion criteria • Patients: were >40 years of age with a diagnosis of COPD; had a >10-pack-year smoking history; had a forced expiratory volume in 1 second (FEV1)/forced vital capacity ratio of <0.70; had a post-albuterol FEV1 of <70% and >50% of predicted values (Global initiative for chronic Obstructive Lung Disease [GOLD] classification II)1; had a modified Medical Research Council (mMRC) Dyspnea Scale score of >1; and were prescribed TIO for >3 months prior to screening. A mMRC score >1 after run-in was also required. • Exclusions included other clinically significant respiratory diseases including asthma; use of inhaled corticosteroids or maintenance COPD medication other than TIO in the 3 months prior to screening; and >2 moderate/severe COPD exacerbations in the past 12 months. Treatment • Patients received either once-daily UMEC/VI 62.5/25 mcg (delivering 55/22 mcg) via the ELLIPTA™ inhaler and placebo via the HandiHaler®, or once-daily TIO 18 mcg via the HandiHaler® and placebo via the ELLIPTA™ inhaler for 12 weeks. — Blinding was performed through color-matching of capsules and opaque overlabels of blister packaging. Outcomes • The primary endpoint was trough FEV1 at Day 85. • Additional endpoints included: serial FEV1 assessments 0—3 h post dose; Transition Dyspnea Index (TDI) scores, rescue medication use, St George’s Respiratory Questionnaire (SGRQ) score, and COPD Assessment Test (CAT) score. • Safety evaluations included adverse events (AEs) and COPD exacerbations. • A subset of patients (the 24-h [TFH] population) participated in serial spirometry measurements over 24 h on Days 1 and 84. Results GSK blinded, double-dummy, parallel-group study (NCT01899742; Study design • Randomized, Safety evaluation • The incidence of AEs was similar in both treatment groups (Table 3). odds • This study evaluated the efficacy and safety of stepping up patients with moderate COPD with at least mild dyspnea from the LAMA tiotropium (TIO) to UMEC/VI dual bronchodilator therapy compared with remaining on TIO monotherapy. Methods 4 been widely approved as a maintenance treatment for COPD. • Bronchodilators, including long-acting muscarinic antagonists (LAMAs) and long-acting β2-agonists (LABAs), are a mainstay in the pharmacological management of stable chronic obstructive pulmonary disease (COPD).1 • Despite the benefits associated with LAMAs,2 many patients receiving LAMA monotherapy fail to achieve optimal disease control.3 It has therefore been proposed that step-up to a combined LAMA/LABA therapy may improve lung function and reduce symptoms in these patients. • The once-daily LAMA/LABA umeclidinium/vilanterol (UMEC/VI; 62.5/25 mcg/day) has • Serial FEV1 measurements 0—24 h post dose (TFH subpopulation: UMEC/VI, n=94; TIO, n=92) demonstrated that UMEC/VI gave statistically significant improvements in 0—24 h weighted mean FEV1 compared with TIO at Days 1 (69 mL; 95% CI: 20, 118; p=0.006) and 84 (102 mL; 95% CI: 28, 176; p=0.007) (Figure 2). Introduction Kerwin E1, Kalberg CJ2, Galkin D2, Zhu C-Q3, Church A2, Fahy WA4 1Clinical Research Institute of Southern Oregon, Medford, OR, USA; 2Respiratory and Immuno-Inflammation, GSK, Research Triangle Park, NC, USA; 3Clinical Statistics, GSK, Uxbridge, Middlesex, UK; 4Respiratory Discovery Medicine, GSK, Uxbridge, Middlesex, UK Poster No: P27 (A6797) UMEC/VI as Step-Up Therapy from Tiotropium in Moderate Symptomatic COPD: a Randomized, 12-Week Study

EX-99.4

Exhibit 99.4

PRESS RELEASE

Issued: Wednesday 18th May 2016

GSK present new data from Breo® Ellipta® SUMMIT study in patients with COPD at ATS Conference

GlaxoSmithKline (LSE/NYSE: GSK) and Innoviva, Inc. (NASDAQ: INVA) today announced that GlaxoSmithKline plc (GSK) presented new data at the American Thoracic Society (ATS) Conference from two pre-specified analyses from the Study to Understand Mortality and MorbidITy (SUMMIT) trial. One demonstrated that patients with Chronic Obstructive Pulmonary Disease (COPD) and moderate airflow limitation receiving Breo® Ellipta® (fluticasone furoate/vilanterol or FF/VI 100/25mcg) achieved improvements in exacerbations compared with placebo. The second analysis demonstrated these patients reported similar rates of pneumonia when taking FF/VI 100/25mcg compared with placebo.

The SUMMIT trial was designed to evaluate the effect of FF/VI 100/25mcg once-daily on all-cause mortality compared with placebo in patients with moderate COPD who had, or were at high risk for Cardiovascular Disease (CVD). Results of the primary endpoint were announced in 2015 and showed that all cause mortality was not affected by combination therapy or the individual components.

The first analysis presented investigated the impact of FF/VI 100/25mcg, an inhaled corticosteroid/long-acting beta2 agonist combination (ICS/LABA), on exacerbations in COPD patients with moderate airflow limitation (mean FEV1 60% predicted). In patients treated with FF/VI 100/25mcg the risk of a COPD exacerbation, measured by time to first exacerbation, was decreased by 20% (HR 0.80, 95% confidence interval 0.73 — 0.86) versus placebo. In addition, FF/VI 100/25mcg led to a 29% reduction in the rate of a moderate to severe exacerbation of COPD compared with placebo.

A second analysis of all reported pneumonia events amongst the 16,568 patients in the SUMMIT trial showed that rates were similar for patients randomised to FF/VI 100/25mcg compared with those on placebo. Reported pneumonia related adverse-events on FF/VI 100/25mcg were 6% compared with placebo 5%, reported pneumonia related serious adverse-events on FF/VI 100/25mcg were 3% compared with placebo 3%.

Dr Courtney Crim, Director Clinical Development, R&D Respiratory, GSK said: “We believe these data are important for COPD physicians and are clinically relevant. These findings from SUMMIT show that COPD patients with moderate airflow limitation experienced both a lower risk of having an exacerbation and fewer exacerbations when treated with FF/VI than patients on placebo. In the same patients with moderate airflow limitation we also saw a similar incidence of pneumonia in patients on FF/VI and those on placebo. In previous studies, in more severe patients, an increase in the incidence of pneumonias has been observed in ICS-containing treatment arms. The finding from this study is therefore interesting and will require further investigation.”

These data were presented at the ATS 2016 Conference 13 — 18 May, San Francisco, US:

F.J. Martinez, et al. The impact of vilanterol, fluticasone furoate, or their combination on exacerbations in COPD patients with moderate airflow obstruction: the SUMMIT trial. D36-COPD: LABA, LAMA, ICS, AND COMBINATIONS, Thematic Poster Session. Wednesday, May 18, 2016. 9:00 AM-3:30 PM

C. Crim, et al. Reported Pneumonia Events in the SUMMIT trial. B44-COPD: COMORBIDITIES. Thematic Poster Session. Monday May 16, 2016. 9:00 AM-4:15 PM

About the SUMMIT Study

SUMMIT is an international, multi-centre, placebo-controlled, double blind, randomised, parallel group trial designed to determine the impact of FF/VI 100/25 (fluticasone furoate/vilanterol or FF/VI) on the survival of COPD patients with moderate airflow limitation and a history of or increased risk of cardiovascular disease (CVD).

COPD patients with moderate airflow limitation (>50 and <70% predicted FEV1) and a history or risk of CVD were randomised 1:1:1:1 to one of four double-blind treatment groups: FF/VI 100/25mcg, FF 100mcg, VI 25mcg or placebo. All treatments were administered once daily via the Ellipta dry powder inhaler.

The study showed a 12.2% reduction in the risk of dying from any cause for patients who were treated with FF/VI 100/25mcg when compared with those who received placebo (p=0.137). This did not achieve statistical significance.

The impact of vilanterol, fluticasone furoate, or their combination on exacerbations in COPD patients with moderate airflow obstruction and the reported pneumonia events in the SUMMIT trial, were pre-specified analyses. As the primary endpoint of the SUMMIT was not met, statistical significance cannot be inferred from the results of these newly-published analyses.

The study is listed on www.clinicaltrials.gov (NCT01313676).

About COPD and CVD

Chronic Obstructive Pulmonary Disease (COPD) is a disease of the lungs that includes chronic bronchitis, emphysema or both. COPD is characterised by obstruction to airflow that interferes with normal breathing. Cigarette smoke, breathing in second-hand smoke, air pollution including biomass fuels, chemical fumes and dust from the environment or workplace can all contribute to COPD.

COPD mortality is increasing and is the third leading cause of death globally. COPD often coexists with other chronic diseases and epidemiological data suggests that CVD or CV risk occurs in nearly half of all patients with COPD. CVD is the number one killer of mild to moderate COPD patients and patients with both COPD and CVD or CV risk were observed to have a mortality rate double that of COPD patients without CVD in studies of up to 15 years in duration.

About FF/VI 100/25mcg

FF/VI 100/25mcg, under the brand name Breo® Ellipta® 100/25mcg is licensed in the US for:

·the long-term, once-daily, maintenance treatment of airflow obstruction in patients with Chronic Obstructive Pulmonary Disease (COPD), including chronic bronchitis and/or emphysema and to reduce exacerbations of COPD in patients with a history of exacerbations. Breo® Ellipta® 100/25mcg is the only strength indicated for the treatment of COPD.

·Breo Ellipta100/25mcg is not indicated for the relief of acute bronchospasm.

Full US prescribing information, including BOXED WARNING and Medication Guide is available at us.gsk.com or US Prescribing Information Breo Ellipta.

FF/VI 100/25mcg, under the brand name Relvar® Ellipta® is approved in Europe for:

·the symptomatic treatment of adults with chronic obstructive pulmonary disease (COPD) with a FEV1<70% predicted normal (post-bronchodilator) with an exacerbation history despite regular bronchodilator therapy.

For the EU Summary of Product Characteristics for Relvar Ellipta, please visit: http://ec.europa.eu/health/documents/community-register/html/h886.htm

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Important Safety Information (ISI) for FF/VI (Breo Ellipta) in the US

The following ISI is based on the Highlights section of the US Prescribing Information for Breo Ellipta. Please consult the full Prescribing Information for all the labelled safety information for Breo Ellipta.

Long-acting beta2-adrenergic agonists (LABA), such as vilanterol, one of the active ingredients in BREO ELLIPTA, increase the risk of asthma-related death. A placebo-controlled trial with another LABA (salmeterol) showed an increase in asthma-related deaths. This finding with salmeterol is considered a class effect of all LABA. Currently available data are inadequate to determine whether concurrent use of inhaled corticosteroids (ICS) or other long-term asthma control drugs mitigates the increased risk of asthma-related death from LABA.

Breo Ellipta is contraindicated for primary treatment of status asthmaticus or other acute episodes of COPD or asthma where intensive measures are required and in patients with severe hypersensitivity to milk proteins or who have demonstrated hypersensitivity to either fluticasone furoate, vilanterol, or any of the excipients.

Breo Ellipta should not be initiated in patients during rapidly deteriorating or potentially life-threatening episodes of COPD or asthma, or used for the relief of acute symptoms, i.e., as rescue therapy for the treatment of acute episodes of bronchospasm. Acute symptoms should be treated with an inhaled, short-acting beta2-agonist.

Breo Ellipta should not be used more often than recommended, at higher doses than recommended, or in conjunction with other medications containing LABAs, as an overdose may result.

Oropharyngeal candidiasis has occurred in patients treated with Breo Ellipta. Patients should be advised to rinse their mouth with water without swallowing after inhalation to help reduce this risk.

An increase in the incidence of pneumonia has been observed in subjects with COPD receiving the fluticasone furoate/vilanterol combination, including Breo Ellipta 100 mcg/25 mcg, in clinical trials. There was also an increased incidence of pneumonias resulting in hospitalisation. In some incidences these pneumonia events were fatal.

Patients who use corticosteroids are at risk for potential worsening of existing tuberculosis; fungal, bacterial, viral, or parasitic infections; or ocular herpes simplex. A more serious or even fatal course of chickenpox or measles may occur in susceptible patients.

Particular care is needed for patients who have been transferred from systemically active corticosteroids to inhaled corticosteroids because deaths due to adrenal insufficiency have occurred in patients with asthma during and after transfer from systemic corticosteroids to less systemically available inhaled corticosteroids.

Hypercorticism and adrenal suppression may occur with very high dosages or at the regular dosage of inhaled corticosteroids in susceptible individuals.

Caution should be exercised when considering the coadministration of Breo Ellipta with long-term ketoconazole and other known strong CYP3A4 inhibitors because increased systemic corticosteroid and cardiovascular adverse effects may occur.

Breo Ellipta can produce paradoxical bronchospasm which may be life-threatening.

Hypersensitivity reactions such as anaphylaxis, angioedema, rash, and urticaria may occur after administration of Breo Ellipta.

Vilanterol, the LABA in Breo Ellipta, can produce clinically significant cardiovascular effects in some patients as measured by increases in pulse rate, systolic or diastolic blood pressure, and also cardiac arrhythmias. Breo Ellipta should be used with caution in patients with cardiovascular disorders.

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Decreases in bone mineral density have been observed with long-term administration of products containing inhaled corticosteroids, as have glaucoma, increased intraocular pressure, and cataracts.

Breo Ellipta should be used with caution in patients with convulsive disorders, thyrotoxicosis, diabetes mellitus, ketoacidosis, and in patients who are unusually responsive to sympathomimetic amines.

Beta-adrenergic agonist medicines may produce significant hypokalemia in some patients.  Beta-adrenergic agonist medicines may produce transient hyperglycemia in some patients. Orally inhaled corticosteroids may cause a reduction in growth velocity when administered in children and adolescents.

For COPD, the most common adverse reactions (>3% and more common than in placebo) reported in two 6-month clinical trials with Breo Ellipta 100/25 (and placebo) were nasopharyngitis, 9% (8%); upper respiratory tract infection, 7% (3%); headache, 7% (5%); and oral candidiasis, 5% (2%).  In addition to the reactions reported in the 6-month studies, adverse reactions occurring in >3% of the subjects treated with Breo Ellipta 100/25 in two 1-year studies included back pain, pneumonia, bronchitis, sinusitis, cough, oropharyngeal pain, arthralgia, influenza, pharyngitis, and pyrexia.

RELVAR®, BREO® and ELLIPTA® are trade marks of the GlaxoSmithKline group of companies.

GSK — one of the world’s leading research-based pharmaceutical and healthcare companies — is committed to improving the quality of human life by enabling people to do more, feel better and live longer.  For further information please visit www.gsk.com.

About Innoviva - Innoviva is focused on bringing compelling new medicines to patients in areas of unmet need by leveraging its significant expertise in the development, commercialization and financial management of bio-pharmaceuticals. Innoviva’s portfolio is anchored by the respiratory assets partnered with Glaxo Group Limited (GSK), including RELVAR®/BREO® ELLIPTA® and ANORO® ELLIPTA®, which were jointly developed by Innoviva and GSK. Under the agreement with GSK, Innoviva is eligible to receive associated royalty revenues from RELVAR®/BREO® ELLIPTA®, ANORO® ELLIPTA® and, if approved and commercialized, VI monotherapy, as well. In addition, Innoviva retains a 15 percent economic interest in future payments made by GSK for earlier-stage programs partnered with Theravance BioPharma, Inc. For more information, please visit Innoviva’s website at www.inva.com. RELVAR®, BREO®, ANORO® and ELLIPTA® are trademarks of the GlaxoSmithKline group of companies.

GSK enquiries:
UK Media enquiries:	David Mawdsley	+44 (0) 20 8047 5502	(London)
	Simon Steel	+44 (0) 20 8047 5502	(London)
	David Daley	+44 (0) 20 8047 5502	(London)
	Catherine Hartley	+44 (0) 20 8047 5502	(London)
	Claire Brough	+44 (0) 20 8047 5502	(London)
US Media enquiries:	Sarah Alspach	+1 202 715 1048	(Washington, DC)
	Sarah Spencer	+1 215 751 3335	(Philadelphia)
	Mary Anne Rhyne	+1 919 483 0492	(North Carolina)
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	Karen Hagens	+1 919 483 2863	(North Carolina)
	Gwynne Oosterbaan	+1 215 751 7468	(Philadelphia)
Analyst/Investor enquiries:	Ziba Shamsi	+44 (0) 20 8047 5543	(London)

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Tom Curry	+ 1 215 751 5419	(Philadelphia)
Gary Davies	+44 (0) 20 8047 5503	(London)
James Dodwell	+44 (0) 20 8047 2406	(London)
Jeff McLaughlin	+1 215 751 7002	(Philadelphia)

Cautionary statement regarding forward-looking statements

GSK cautions investors that any forward-looking statements or projections made by GSK, including those made in this announcement, are subject to risks and uncertainties that may cause actual results to differ materially from those projected. Such factors include, but are not limited to, those described under Item 3.D ‘Risk factors’ in the company’s Annual Report on Form 20-F for 2015.

Innoviva forward-looking statements

This press release contains certain “forward-looking” statements as that term is defined in the Private Securities Litigation Reform Act of 1995 regarding, among other things, statements relating to goals, plans, objectives and future events. Innoviva intends such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in Section 21E of the Securities Exchange Act of 1934 and the Private Securities Litigation Reform Act of 1995. Such forward-looking statements involve substantial risks, uncertainties and assumptions. Examples of such statements include statements relating to: prescription and market share trends, payor coverage, the strategies, plans and objectives of the company, the timing, manner and amount of anticipated potential capital returns to stockholders (including without limitation, expectations of future share repurchases or cash dividends), the status and timing of clinical studies, data analysis and communication of results, the potential benefits and mechanisms of action of product candidates, expectations for products, and projections of revenue, expenses and other financial items. These statements are based on the current estimates and assumptions of the management of Innoviva as of the date of this press release and are subject to risks, uncertainties, changes in circumstances, assumptions and other factors that may cause the actual results of Innoviva to be materially different from those reflected in the forward-looking statements. Important factors that could cause actual results to differ materially from those indicated by such forward-looking statements include, among others, risks related to: lower than expected future royalty revenue from respiratory products partnered with GSK, delays or difficulties in commencing or completing clinical studies, the potential that results from clinical or non-clinical studies indicate product candidates are unsafe or ineffective, dependence on third parties to conduct its clinical studies, delays or failure to achieve and maintain regulatory approvals for product candidates, and risks of collaborating with third parties to discover, develop and commercialize products.  Other risks affecting Innoviva are described under the headings “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” contained in Innoviva’s Annual Report on Form 10-K for the year ended December 31, 2015 and Innoviva’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2016, which are on file with the Securities and Exchange Commission (SEC) and available on the SEC’s website at www.sec.gov. In addition to the risks described above and in Innoviva’s other filings with the SEC, other unknown or unpredictable factors also could affect Innoviva’s results. Past performance is not necessarily indicative of future results. No forward-looking statements can be guaranteed and actual results may differ materially from such statements. Given these uncertainties, you should not place undue reliance on these forward-looking statements. Innoviva assumes no obligation to update its forward-looking statements on account of new information, future events or otherwise, except as required by law.  (INVA-G)

Registered in England & Wales:

No. 3888792

Registered Office:

980 Great West Road

Brentford, Middlesex

TW8 9GS

INVA - G

CONTACT INFORMATION

Innoviva, Inc. enquiries:

Investor Relations

Eric d’Esparbes

+1 650 808 4100

(San Francisco)

investor.relations@inva.com

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EX-99.5

Exhibit 99.5

PRESS RELEASE

Issued: Wednesday 18th May 2016

GSK presents efficacy data for Anoro® Ellipta® in COPD patients who remained symptomatic on tiotropium

GlaxoSmithKline (LSE/NYSE: GSK) and Innoviva, Inc. (NASDAQ: INVA) today announced results from data presented at the American Thoracic Society (ATS) 2016 International Conference investigating the efficacy and safety of Anoro® Ellipta® (umeclidinium/vilanterol, ‘UMEC/VI’) in patients with moderate chronic obstructive pulmonary disease (COPD) who continued to have symptoms while on tiotropium monotherapy.

For patients in the study who were switched from tiotropium 18mcg to UMEC/VI 62.5/25mcg, a statistically significant improvement of 88mL (P<0.001; 95% CI 45, 131) was shown at week 12 for the primary efficacy endpoint of lung function (measured by trough FEV1), compared to patients who remained on tiotropium 18mcg for the duration of the study.

For the secondary efficacy endpoint of three hour post-dose FEV1, a statistically significant improvement in lung function of 73mL (P=0.004; 95% CI 24, 122) was also shown at week 12 for patients who were switched to UMEC/VI 62.5mcg, compared to patients who stayed on tiotropium 18mcg for the duration of the study.

Professor Neil Barnes, Global Respiratory Franchise Medical Head, GSK, said: “For COPD patients who remain symptomatic it is important that their lung function is optimised effectively. These efficacy data demonstrate the improvement in lung function that can be achieved in patients with moderate COPD when changing treatment from monotherapy with tiotropium 18mcg to dual bronchodilation with Anoro Ellipta.”

Furthermore, Dr. Ted Witek, Chief Scientific Officer of Innoviva, Inc. said: “This adds to the growing evidence base that shows that use of two mechanistic pathways can help symptomatic patients with COPD to improve their lung function.”

The most commonly reported adverse events for both UMEC/VI 62.5/25mcg and tiotropium 18mcg were nasopharyngitis (7% UMEC/VI 62.5/25mcg; 7% tiotropium 18mcg) and headache (6% UMEC/VI 62.5/25mcg; 7% tiotropium 18mcg). The overall incidence of on-treatment adverse events was 30% in the UMEC/VI 62.5/25mcg group and 31% in the tiotropium 18mcg group. The incidence of any on-treatment non-fatal serious adverse event was 2% in the UMEC/VI 62.5/25mcg arm and 2% in the tiotropium 18mcg arm. There was one fatal serious adverse event in the UMEC/VI group which was not related to study medication.

Study Design

The study (DB2116960) was a 12-week, multicentre, randomised, blinded* study designed to compare UMEC/VI 62.5/25mcg once-daily with tiotropium 18mcg once-daily in patients with moderate COPD who continue to have symptoms on tiotropium.

Patients in the study were required to have been prescribed tiotropium 18mcg once-daily for at least 3 months prior to screening and have completed a 4-week run-in on open-label tiotropium prior to randomisation. Patients had to be ‘symptomatic’ (defined as 50—70% predicted post-bronchodilator forced expiratory volume in one second [FEV1] with a modified Medical Research Council [mMRC]

*Details of the blinding process for tiotropium can be found on page 474 in Decramer M et al. Lancet Respir Med 2014; 2:472—486.5.

score of ³1) at screening and at randomisation.

A total of 494 patients were randomised 1:1 to UMEC/VI 62.5/25mcg once-daily administered via the Ellipta inhaler or tiotropium 18mcg once-daily administered via a Handihaler® inhaler and received at least one dose of study medication.

Further details on the study design and the full results for this study can be found on the GSK Clinical Study Register (DB2116960).

About COPD

COPD is a disease of the lungs that includes chronic bronchitis, emphysema or both. COPD is characterised by obstruction to airflow that interferes with normal breathing.(1) COPD is thought to affect 329 million people worldwide.(2)

Long-term exposure to lung irritants that damage the lungs and the airways are usually the cause of COPD. Cigarette smoke, breathing in second hand smoke, air pollution, chemical fumes or dust from the environment or workplace can all contribute to COPD. Most people who have COPD are at least 40 years old when symptoms begin.(3)

About Anoro Ellipta

Anoro Ellipta is a combination long-acting muscarinic antagonist (LAMA) (also known as an anticholinergic) / long-acting beta2-adrenergic agonist (LABA).

In the US, Anoro Ellipta is indicated for the long-term, once-daily, maintenance treatment of airflow obstruction in patients with COPD, including chronic bronchitis and/or emphysema. Anoro Ellipta is not indicated for the relief of acute bronchospasm or for the treatment of asthma. The FDA-approved strength is umeclidinium/vilanterol 62.5/25mcg. Full US prescribing information, including BOXED WARNING and Medication Guide are available at: https://www.gsksource.com/gskprm/htdocs/documents/ANORO-ELLIPTA-PI-MG.PDF.

In Europe, Anoro is indicated as a once-daily, maintenance bronchodilator treatment to relieve symptoms in adult patients with COPD. The approved strength in Europe is UMEC/VI 55mcg/22mcg (delivered dose, equivalent to 62.5mcg/25mcg pre-dispensed dose). For the EU Summary of Product Characteristics (SmPC), please visit: http://www.ema.europa.eu/docs/en_GB/document_library/EPAR_-_Product_Information/human/002751/WC500168424.pdf

Important Safety Information for Anoro Ellipta

The following Important Safety Information (ISI) is based on the Highlights section of the Prescribing Information for Anoro Ellipta. Please consult the full Prescribing Information for all the labelled safety information for Anoro Ellipta.

Long-acting beta2-adrenergic agonists (LABAs), such as vilanterol, one of the active ingredients in Anoro Ellipta, increase the risk of asthma-related death. A placebo-controlled trial with another LABA (salmeterol) showed an increase in asthma-related deaths in subjects receiving salmeterol. This finding with salmeterol is considered a class effect of all LABAs, including vilanterol. The safety and efficacy of Anoro Ellipta in patients with asthma have not been established. Anoro Ellipta is not indicated for the treatment of asthma.

Anoro Ellipta is contraindicated in patients with severe hypersensitivity to milk proteins or who have demonstrated hypersensitivity to either umeclidinium, vilanterol, or any of the other ingredients.

Anoro Ellipta should not be initiated in patients during rapidly deteriorating or potentially life-threatening episodes of COPD, or as rescue therapy for the treatment of acute episodes of bronchospasm, which should be treated with an inhaled, short-acting beta2-agonist.

Anoro Ellipta should not be used more often than recommended, at higher doses than recommended, or in conjunction with additional medicine containing a LABA, as an overdose may result.

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Anoro Ellipta should be used with caution when considering coadministration with long-term ketoconazole and other known strong cytochrome P450 3A4 inhibitors because increased cardiovascular adverse effects may occur.

As with other inhaled medicines, Anoro Ellipta can produce paradoxical bronchospasm, which may be life-threatening.

Hypersensitivity reactions such as anaphylaxis, angioedema, rash, and urticaria may occur after administration of Anoro Ellipta. Discontinue Anoro Ellipta if such reactions occur.

Anoro Ellipta should be used with caution in patients with cardiovascular disorders, especially coronary insufficiency, cardiac arrhythmias, and hypertension.

Anoro Ellipta should be used with caution in patients with convulsive disorders, thyrotoxicosis, diabetes mellitus, ketoacidosis, and in patients who are unusually responsive to sympathomimetic amines.

Anoro Ellipta should be used with caution in patients with narrow-angle glaucoma. Instruct patients to contact a physician immediately should any signs or symptoms of narrow-angle glaucoma occur.

Anoro Ellipta should be used with caution in patients with urinary retention, especially in patients with prostatic hyperplasia or bladder neck obstruction. Instruct patients to contact a physician immediately should any signs or symptoms of urinary retention occur.

Beta-adrenergic agonist medicines may produce significant hypokalemia and transient hyperglycemia in some patients.

The most common adverse reactions (incidence >1% and more common than placebo) reported in four 6-month clinical trials with Anoro Ellipta (and placebo) were pharyngitis, 2% (<1%); sinusitis 1% (<1%); lower respiratory tract infection, 1% (<1%); constipation, 1% (<1%); diarrhea, 2% (1%); pain in extremity 2% (1%); muscle spasms, 1% (<1%); neck pain, 1% (<1%); and chest pain 1% (<1%). In addition to the 6-month efficacy trials with Anoro Ellipta, a 12-month trial evaluated the safety of umeclidinium/vilanterol 125 mcg/25 mcg in subjects with COPD. Adverse reactions (incidence >1% and more common than placebo) in subjects receiving umeclidinium/vilanterol 125 mcg/25 mcg were: headache, back pain, sinusitis, cough, urinary tract infection, arthralgia, nausea, vertigo, abdominal pain, pleuritic pain, viral respiratory tract infection, toothache, and diabetes mellitus.

Beta2-agonists, such as vilanterol should be administered with extreme caution to patients being treated with monoamine oxidase inhibitors, tricyclic antidepressants, or drugs known to prolong the QTc interval or within 2 weeks of discontinuation of such agents, because the effect of adrenergic agonists on the cardiovascular system may be potentiated.

Use beta blockers with caution as they not only block the pulmonary effect of beta2-agonists, such as vilanterol, but may produce severe bronchospasm in patients with COPD.

Use with caution in patients taking non—potassium-sparing diuretics, as electrocardiographic changes and/or hypokalemia associated with non—potassium-sparing diuretics may worsen with concomitant beta-agonists.

Avoid co-administration of Anoro Ellipta with other anticholinergic-containing drugs as this may lead to an increase in anticholinergic adverse effects such as cardiovascular effects, worsening of narrow-angle glaucoma, and worsening of urinary retention.

ANORO® and ELLIPTA® are trade marks of the GlaxoSmithKline group of companies.

HANDIHALER® is a trade mark of the Boehringer Ingelheim group of companies.

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GSK — one of the world’s leading research-based pharmaceutical and healthcare companies — is committed to improving the quality of human life by enabling people to do more, feel better and live longer.  For further information please visit www.gsk.com.

Innoviva, Inc. — Innoviva, formerly known as Theravance, Inc., is focused on bringing compelling new medicines to patients in areas of unmet need by leveraging its significant expertise in the development, commercialization and financial management of bio-pharmaceuticals. Innoviva’s portfolio is anchored by the respiratory assets partnered with Glaxo Group Limited (GSK), including RELVAR®/BREO® ELLIPTA® and ANORO® ELLIPTA®, which were jointly developed by Innoviva and GSK. Under the agreement with GSK, Innoviva is eligible to receive associated royalty revenues from RELVAR®/BREO® ELLIPTA®, ANORO® ELLIPTA® and, if approved and commercialized, VI monotherapy, as well. In addition, Innoviva retains a 15 percent economic interest in future payments made by GSK for earlier-stage programs partnered with Theravance BioPharma, Inc. For more information, please visit Innoviva’s website at www.inva.com. RELVAR®, BREO®, ANORO® and ELLIPTA® are trademarks of the GlaxoSmithKline group of companies.

GSK enquiries:
UK Media enquiries:	David Mawdsley	+44 (0) 20 8047 5502	(London)
	Simon Steel	+44 (0) 20 8047 5502	(London)
	David Daley	+44 (0) 20 8047 5502	(London)
	Catherine Hartley	+44 (0) 20 8047 5502	(London)
	Claire Brough	+44 (0) 20 8047 5502	(London)
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	Karen Hagens	+1 919 483 2863	(North Carolina)
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Analyst/Investor enquiries:	Ziba Shamsi	+44 (0) 20 8047 5543	(London)
	Tom Curry	+ 1 215 751 5419	(Philadelphia)
	Gary Davies	+44 (0) 20 8047 5503	(London)
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	Jeff McLaughlin	+1 215 751 7002	(Philadelphia)

Cautionary statement regarding forward-looking statements
GSK cautions investors that any forward-looking statements or projections made by GSK, including those made in this announcement, are subject to risks and uncertainties that may cause actual results to differ materially from those projected. Such factors include, but are not limited to, those described under Item 3.D ‘Risk factors’ in the company’s Annual Report on Form 20-F for 2015.

Innoviva forward-looking statements

This press release contains certain “forward-looking” statements as that term is defined in the Private Securities Litigation Reform Act of 1995 regarding, among other things, statements relating to goals, plans, objectives and future events. Innoviva intends such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in Section 21E of the Securities Exchange Act of 1934 and the Private Securities Litigation Reform Act of 1995. Such forward-looking statements involve substantial risks, uncertainties and assumptions. Examples of such statements include statements relating to: prescription and market share trends, payor coverage, the strategies, plans and objectives of the company, the timing, manner and amount of anticipated potential capital returns to stockholders (including without limitation, expectations of future share repurchases or cash dividends), the status and timing of clinical studies, data analysis and communication of results, the potential benefits and mechanisms of action of product, and projections of revenue, expenses and other financial items. These statements are based on the current estimates and

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assumptions of the management of Innoviva as of the date of this press release and are subject to risks, uncertainties, changes in circumstances, assumptions and other factors that may cause the actual results of Innoviva to be materially different from those reflected in the forward-looking statements. Important factors that could cause actual results to differ materially from those indicated by such forward-looking statements include, among others, risks related to: lower than expected future royalty revenue from respiratory products partnered with GSK, delays or difficulties in commencing or completing clinical studies, the potential that results from clinical or non-clinical studies indicate product candidates are unsafe or ineffective, dependence on third parties to conduct its clinical studies, delays or failure to achieve and maintain regulatory approvals for product candidates, and risks of collaborating with third parties to discover, develop and commercialize products.  Other risks affecting Innoviva are described under the headings “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” contained in Innoviva’s Annual Report on Form 10-K for the year ended December 31, 2015 and Innoviva’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2016, which are on file with the Securities and Exchange Commission (SEC) and available on the SEC’s website at www.sec.gov. In addition to the risks described above and in Innoviva’s other filings with the SEC, other unknown or unpredictable factors also could affect Innoviva’s results. Past performance is not necessarily indicative of future results. No forward-looking statements can be guaranteed and actual results may differ materially from such statements. Given these uncertainties, you should not place undue reliance on these forward-looking statements. Innoviva assumes no obligation to update its forward-looking statements on account of new information, future events or otherwise, except as required by law.  (INVA-G)

References:

(1)World Health Organization. Chronic Respiratory Diseases. Available from: http://www.who.int/gard/publications/chronic_respiratory_diseases.pdf

(2)Global, regional, and national incidence, prevalence, and years lived with disability for 301 acute and chronic diseases and injuries in 188 countries, 1990—2013: a systematic analysis for the Global Burden of Disease Study 2013. The Lancet; 2015. Available at: http://dx.doi.org/10.1016/S0140-6736(15)60692-4. Accessed September 2015

(3)National Heart Lung and Blood Institute. Who is at risk for COPD? Accessed March 2014. Available at:https://www.nhlbi.nih.gov/health/health-topics/topics/copd/atrisk.html

INVA - G

Registered in England & Wales:

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Registered Office:

980 Great West Road

Brentford, Middlesex

TW8 9GS

CONTACT INFORMATION

Innoviva, Inc. enquiries:

Investor Relations

Eric d’Esparbes

+1 650 808 4100

(San Francisco)

investor.relations@inva.com

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