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&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold;" size="2"&gt;7. Collaborations and Contingencies&lt;/font&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&amp;#160;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&lt;b&gt;&lt;i&gt;&lt;font style="FONT-STYLE: italic; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold;" size="2"&gt;Collaboration Arrangements&lt;/font&gt;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;
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&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&lt;font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2"&gt;From time to time, the Company enters into collaborative arrangements for its research and development and manufacturing activities. Each collaboration is unique in nature and the Company&amp;#8217;s significant agreements are discussed below.&lt;/font&gt;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&amp;#160;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&lt;b&gt;&lt;i&gt;&lt;font style="FONT-STYLE: italic; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold;" size="2"&gt;Bayer&lt;/font&gt;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&amp;#160;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&lt;font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2"&gt;In August&amp;#160;2010, the Company entered into a license agreement with Bayer Consumer Care AG that provides Bayer with an exclusive license to develop, manufacture and commercialize ATX-101 outside of the United States and Canada. In connection with the License Agreement the Company also entered into a related Services, Research, Development and Collaboration Agreement with Bayer&amp;#8217;s affiliate,&amp;#160;Intendis GmbH. These agreements are referred to jointly as the collaboration arrangement with Bayer, and Bayer Consumer Care AG and Intendis GmbH are referred to jointly as Bayer. In connection with the entry into the collaboration arrangement, Bayer paid the Company an upfront license fee of approximately $21,319,000 and approximately $22,247,000 for research and development to fund a portion of Bayer&amp;#8217;s European Phase III clinical trials. The Company is eligible to receive up to approximately $297,000,000 for certain development, manufacturing, regulatory and commercialization contingent payments upon the achievement by Bayer of specified events under our collaborative arrangement, as well as escalating royalties from the mid- to high-teens on Bayer&amp;#8217;s net product sales of ATX-101. The first contingent event-based payment of $15,800,000 was received on May&amp;#160;31, 2012, triggered by the completion of Bayer&amp;#8217;s European Phase III clinical trials for ATX-101, the receipt of two consecutive validated manufacturing lots and Bayer&amp;#8217;s subsequent decision to pursue continued development and seek regulatory approval of ATX-101. This amount was recorded as revenue upon receipt as all revenue recognition criteria had been met. At this time, Bayer also elected to pursue additional research and development activities related to ATX-101, which are distinct from the original development activities, and subsequently funded $17,400,000 for these additional Bayer development activities. This payment was recorded as restricted cash and deferred development funds and will be recognized as an offset to development expense as the restricted cash is utilized to fund Bayer&amp;#8217;s development activities. License fees received in connection with the entry into the collaboration agreement of $21,319,000 were deferred and recognized on a straight-line basis over the period of substantial involvement in collaboration activities that were required to be conducted relative to the upfront license fee and development funds received from Bayer. These activities were completed as of May&amp;#160;31, 2012.&lt;/font&gt;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&amp;#160;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&lt;font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2"&gt;Amounts to fund collaboration efforts of $22,247,000 and $17,400,000 were recorded as restricted cash and deferred development funds and are recognized as an offset to research and development expenses as the restricted cash is utilized to fund development activities. Restricted cash and deferred development funds were presented as current and long-term on the condensed balance sheets and are based on the Company&amp;#8217;s estimate of amounts that will be spent to fund development activities within the next 12 months. Amounts recognized as offsets to research and development expense were $2,105,000, $5,201,000, $3,483,000 and $6,542,000 for the three and six months ended June&amp;#160;30, 2013 and 2012, respectively.&lt;/font&gt;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&amp;#160;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&lt;font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2"&gt;The next contingent event-based payment is $39,600,000 and is subject to Bayer achieving regulatory approval of ATX-101 in the first of any major European country, which is defined as Germany, United Kingdom, France, Spain or Italy. In addition, the Company is eligible to receive further payments upon the first commercial sales in two defined territories outside of the European Union (&amp;#8220;EU&amp;#8221;), if approved in those territories. The remaining contingent event payments are based on achieving certain net sales targets in Bayer&amp;#8217;s territory in a calendar year.&lt;/font&gt;&lt;/p&gt;
&lt;p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt;" align="center"&gt;&amp;#160;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&lt;b&gt;&lt;i&gt;&lt;font style="FONT-STYLE: italic; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold;" size="2"&gt;Los Angeles Biomedical Research Institute&lt;/font&gt;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&amp;#160;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&lt;font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2"&gt;In August&amp;#160;2005, the Company entered into an exclusive license agreement with Los Angeles Biomedical Research Institute at Harbor/UCLA Medical Center, or LA Biomed, pursuant to which it obtained a worldwide exclusive license to practice, enforce and otherwise exploit certain patent rights related to the use of the active ingredient in ATX-101. The exclusive license requires the Company to pay LA Biomed a milestone payment of $500,000 upon receipt of marketing approval of ATX-101, as well as non-royalty sublicense fees equal to 10% of any sublicense income, up to a total of $5,000,000, 50% of which the Company may elect to satisfy through the issuance of capital stock. Additionally, upon commercialization of a licensed product or service, the Company is obligated to pay low- to mid- single digit royalties on net product sales of ATX-101 by it and Bayer. In August&amp;#160;2010, due to the receipt of the upfront license fee from Bayer, the Company incurred non-royalty sublicense fees of $1,950,000, which was deferred and was recognized as sublicense fee expense on a straight-line basis over the same period as the license income. During 2010, the Company made payments of cash and stock to LA Biomed totaling $390,000 related to the non-royalty sublicense fee incurred. The remainder of $1,560,000 was paid upon our IPO in 50% cash and 50% stock.&lt;/font&gt;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&amp;#160;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&lt;font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2"&gt;Additionally, due to the receipt of the contingent event-based payment of $15,800,000 payable from Bayer on May&amp;#160;31, 2012, the Company incurred an additional non-royalty sublicense fee of $1,580,000 payable to LA Biomed, which was paid in 50% cash and 50% stock.&lt;/font&gt;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&amp;#160;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&lt;b&gt;&lt;i&gt;&lt;font style="FONT-STYLE: italic; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold;" size="2"&gt;Contingencies&lt;/font&gt;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&amp;#160;&lt;/p&gt;
&lt;p style="MARGIN: 0in 0in 0pt;"&gt;&lt;font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2"&gt;The Company may be subject to various litigation matters arising in the ordinary course of business from time to time. The Company is not subject to any currently pending legal matters or claims that would have a material adverse effect on its financial position, results of operations or cash flows.&lt;/font&gt;&lt;/p&gt;
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