3. Collaborative Arrangements

Net Revenue from Collaborative Arrangements

Net revenue from collaborative arrangements from continuing operations relates to our collaborative arrangement with GSK. Net revenue from other collaborative arrangements is reflected as discontinued operations in the consolidated statements of operations. Refer to Notes 1, 11 and 12, "Description of Operations and Summary of Significant Accounting Policies," "Spin-Off of Theravance Biopharma, Inc." and "Discontinued Operations" for further information.

Net revenue recognized under our GSK Agreements was as follows (in thousands):

	Year Ended December 31,
	2015			2014			2013
Royalties from a related party	$	66,887		$	18,417		$	1,945
Less: amortization of capitalized fees paid to a related party		(13,823	)		(11,066	)		(743	)

Royalty revenue		53,064			7,351			1,202
LABA collaboration(1)		—			—			1,815
Strategic alliance—MABA program		885			1,082			1,515

Total net revenue from GSK	$	53,949		$	8,433		$	4,532


(1)	Deferred revenue under this agreement was fully recognized in the year ended December 31, 2013.

LABA Collaboration

In November 2002, we entered into our LABA Collaboration Agreement with GSK to develop and commercialize once-daily LABA products for the treatment of chronic obstructive pulmonary disease ("COPD") and asthma.

As a result of the launch and approval of RELVAR®/BREO® ELLIPTA® and ANORO® ELLIPTA® in the U.S., Japan and Europe, we paid milestone fees to GSK totaling $220.0 million during the year ended December 31, 2014. Although we have no further milestone payment obligations to GSK pursuant to the LABA Collaboration Agreement, we continue to have ongoing development and commercialization activities under the GSK Agreements that are expected to continue over the life of the agreements. The milestone fees paid to GSK were recognized as capitalized fees paid to a related party, which are being amortized over their estimated useful lives commencing upon the commercial launch of the product. The amortization expense is recorded as a reduction to the royalties from GSK.

We are entitled to receive annual royalties from GSK on sales of RELVAR®/BREO® ELLIPTA® as follows: 15% on the first $3.0 billion of annual global net sales and 5% for all annual global net sales above $3.0 billion. Sales of single-agent LABA medicines and combination medicines would be combined for the purposes of this royalty calculation. For other products combined with a LABA from the LABA Collaboration, such as ANORO® ELLIPTA®, royalties are upward tiering and range from 6.5% to 10%.

2004 Strategic Alliance

In March 2004, we entered into the Strategic Alliance Agreement with GSK where GSK received an option to license exclusive development and commercialization rights to product candidates from certain of our discovery programs on pre-determined terms and on an exclusive, worldwide basis. In 2005, GSK licensed our MABA program for the treatment of COPD, and in October 2011, we and GSK expanded the MABA program by adding six additional Innoviva-discovered preclinical MABA compounds (the "Additional MABAs"). The development program is fully funded by GSK and is still currently in early stages of Phase II trials. As a result of the transactions effected by the Spin-Off, we are only entitled to receive 15% of any contingent payments and royalties payable by GSK from sales of FF/UMEC/VI (and MABA, and MABA/FF) while Theravance Biopharma receives 85% of those same payments.

Purchases of Common Stock under the Company's Governance Agreement and Common Stock Purchase Agreements with GSK

In the year ended December 31, 2015, GSK purchased approximately 424,081 shares of our common stock pursuant to its periodic "top-up" rights under our Amended and Restated Governance Agreement, dated as of June 4, 2004, as amended, among us, GSK and certain GSK affiliates, for an aggregate purchase price of approximately $6.5 million.

GSK Contingent Payments and Revenue

The potential future contingent payments receivable related to the MABA program of $363.0 million are not deemed substantive milestones due to the fact that the achievement of the event underlying the payment predominantly relates to GSK's performance of future development, manufacturing and commercialization activities for product candidates after licensing the program. The Company is entitled to 15% of any milestone payments.

Reimbursement of Research and Development Costs

Reimbursement of research and development costs from continuing operations is solely related to the GSK Agreements. Under the GSK Agreements, we are entitled to reimbursement of certain research and development costs. For the years ended December 31, 2015, 2014 and 2013, research and development costs reimbursed from GSK was zero, $0.1 million and $0.5 million. Reimbursement of research and development costs from other collaborative arrangements has been reflected as discontinued operations in the consolidated statements of operations. Refer to Notes 1, 11 and 12, "Description of Operations and Summary of Significant Accounting Policies," "Spin-Off of Theravance Biopharma, Inc." and "Discontinued Operations" for further information.