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&lt;table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"&gt;
&lt;tr&gt;
&lt;td valign="top" width="4%" align="left"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;5.&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" align="left"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&lt;b&gt;Arcion License
Agreement:&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;!-- xbrl,body --&gt;
&lt;p style="MARGIN-TOP: 6px; MARGIN-BOTTOM: 0px"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;On March&amp;#xA0;26, 2013, the
Company entered into a definitive Exclusive License Agreement (the
&amp;#x201C;Arcion Agreement&amp;#x201D;) with Arcion pursuant to which
Arcion agreed to grant to the Company an exclusive commercial
world-wide license, with rights of sublicense, under certain patent
and other intellectual property rights related to in-process
research and development to develop, manufacture, market, and sell
gel products containing clonidine (or a derivative thereof), alone
or in combination with other active ingredients, for topical
administration for the treatment of painful diabetic neuropathy and
other indications (the &amp;#x201C;Arcion Products&amp;#x201D;).&lt;/font&gt;&lt;/p&gt;
&lt;p style="MARGIN-TOP: 12px; MARGIN-BOTTOM: 0px"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;Pursuant to the Arcion
Agreement, the Company is responsible for using commercially
reasonable efforts to develop and commercialize Arcion Products,
including the use of such efforts to conduct certain clinical
trials within certain time frames.&lt;/font&gt;&lt;/p&gt;
&lt;p style="MARGIN-TOP: 12px; MARGIN-BOTTOM: 0px"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;Upon execution of the
Arcion Agreement, the Company issued to Arcion 500,516 unregistered
shares of Common Stock (having a fair market value of $2.1
million), which shares are subject to a nine month lock-up and
certain limitations on sale thereafter. The issuance of such shares
(delivered April 2013) was exempt from registration under the
Securities Act of 1933, as amended, in reliance on
Section&amp;#xA0;4(2) thereof. In addition, the Company is required to
make the following payments to Arcion:&lt;/font&gt;&lt;/p&gt;
&lt;p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; FONT-SIZE: 6px"&gt;
&amp;#xA0;&lt;/p&gt;
&lt;table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"&gt;
&lt;tr&gt;
&lt;td width="5%"&gt;&lt;font size="1"&gt;&amp;#xA0;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" width="2%" align="left"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;#x2022;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" width="1%"&gt;&lt;font size="1"&gt;&amp;#xA0;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" align="left"&gt;
&lt;p align="left"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;$2.5 million upon filing and acceptance by the FDA of an NDA
with respect to an Arcion Product, payable at the Company&amp;#x2019;s
option, in cash or unregistered shares of Common Stock (with such
shares also being subject to a nine month lock-up and certain
limitations on sale thereafter); and&lt;/font&gt;&lt;/p&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; FONT-SIZE: 6px"&gt;
&amp;#xA0;&lt;/p&gt;
&lt;table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"&gt;
&lt;tr&gt;
&lt;td width="5%"&gt;&lt;font size="1"&gt;&amp;#xA0;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" width="2%" align="left"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;#x2022;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" width="1%"&gt;&lt;font size="1"&gt;&amp;#xA0;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" align="left"&gt;
&lt;p align="left"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;up to a potential $60 million in cash payments upon achieving
certain pre-determined sales thresholds in the U.S., none of which
occur prior to achieving at least $200 million in U.S. net
sales.&lt;/font&gt;&lt;/p&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="MARGIN-TOP: 12px; MARGIN-BOTTOM: 0px; FONT-SIZE: 1px"&gt;
&amp;#xA0;&lt;/p&gt;
&lt;p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;In addition, the Company
shall pay Arcion $35 million in cash on initial FDA approval of an
Arcion Product, unless; (i)&amp;#xA0;the Company does not receive at
least $70 million in FDA approval-related milestone payments from
its US sublicensees (if any sublicenses are involved) with respect
to the Arcion Product, in which case the Company shall pay Arcion a
prorated amount between $17.5 million and $35 million based on the
total amount of such milestone payments received by the Company and
its affiliates from its sublicenses (if any sublicenses are
involved); or (ii)&amp;#xA0;the FDA requires or recommends the
performance of a capsaicin challenge test as a precondition or
precursor to the prescribing of the Arcion Product (as a condition
of approval, a labeling requirement, or otherwise), in which case
such milestone shall be reduced to $17.5 million, but the first and
second sales threshold payments described above shall each be
increased by $8 million.&lt;/font&gt;&lt;/p&gt;
&lt;p style="MARGIN-TOP: 12px; MARGIN-BOTTOM: 0px"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;All milestone payments due
Arcion under the Arcion Agreement are payable only once
each.&lt;/font&gt;&lt;/p&gt;
&lt;p style="MARGIN-TOP: 12px; MARGIN-BOTTOM: 0px"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;In addition to the
milestones set forth above, the Company will pay Arcion:&lt;/font&gt;&lt;/p&gt;
&lt;p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; FONT-SIZE: 6px"&gt;
&amp;#xA0;&lt;/p&gt;
&lt;table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"&gt;
&lt;tr&gt;
&lt;td width="5%"&gt;&lt;font size="1"&gt;&amp;#xA0;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" width="2%" align="left"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;#x2022;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" width="1%"&gt;&lt;font size="1"&gt;&amp;#xA0;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" align="left"&gt;
&lt;p align="left"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;a low single digit royalty on the Company&amp;#x2019;s and its
affiliates&amp;#x2019; net sales of Arcion Products in the
U.S.;&lt;/font&gt;&lt;/p&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; FONT-SIZE: 6px"&gt;
&amp;#xA0;&lt;/p&gt;
&lt;table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"&gt;
&lt;tr&gt;
&lt;td width="5%"&gt;&lt;font size="1"&gt;&amp;#xA0;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" width="2%" align="left"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;#x2022;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" width="1%"&gt;&lt;font size="1"&gt;&amp;#xA0;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" align="left"&gt;
&lt;p align="left"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;a low double digit percentage of all sales-based payments
received by the Company and its affiliates with respect to
sublicensees&amp;#x2019; sales of Arcion Products in the
U.S.;&lt;/font&gt;&lt;/p&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; FONT-SIZE: 6px"&gt;
&amp;#xA0;&lt;/p&gt;
&lt;table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"&gt;
&lt;tr&gt;
&lt;td width="5%"&gt;&lt;font size="1"&gt;&amp;#xA0;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" width="2%" align="left"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;#x2022;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" width="1%"&gt;&lt;font size="1"&gt;&amp;#xA0;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" align="left"&gt;
&lt;p align="left"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;a low single digit royalty on all net sales of Arcion Products
outside the U.S.; and&lt;/font&gt;&lt;/p&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; FONT-SIZE: 6px"&gt;
&amp;#xA0;&lt;/p&gt;
&lt;table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"&gt;
&lt;tr&gt;
&lt;td width="5%"&gt;&lt;font size="1"&gt;&amp;#xA0;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" width="2%" align="left"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;&amp;#x2022;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" width="1%"&gt;&lt;font size="1"&gt;&amp;#xA0;&lt;/font&gt;&lt;/td&gt;
&lt;td valign="top" align="left"&gt;
&lt;p align="left"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;a low double digit percentage of all milestone payments
received by the Company and its affiliates from their sublicensees
that are triggered by the receipt of regulatory approval of the
Arcion Product in certain jurisdictions outside of the
U.S.&lt;/font&gt;&lt;/p&gt;
&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="MARGIN-TOP: 12px; MARGIN-BOTTOM: 0px"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The aforementioned sales
royalties are subject to certain reductions, on a
country-by-country and product-by-product basis, under certain
agreed upon circumstances. In addition, in the event the amount due
upon FDA approval of the Arcion Product in the U.S. is less than
$35 million for any reason other than an FDA requirement or
recommendation of a capsaicin challenge test, as described above,
the Company shall pay Arcion a portion of any milestone payments
received by the Company and its affiliates from their sublicensees
on the basis of any events occurring in the U.S. following FDA
approval but prior to (and including) first commercial sale of an
Arcion Product in the U.S., and certain of the payments to Arcion
referred to above shall also be subject to upward adjustment (with
such upward adjustments payable in the form of cash or unregistered
shares of the Company&amp;#x2019;s Common Stock, as elected solely by
the Company), until such time as the sum of all such additional
payments and upward adjustments (including the value of any
issuances of stock, if elected by the Company) and the initial
amount paid on the initial FDA approval totals $35
million.&lt;/font&gt;&lt;/p&gt;
&lt;p style="MARGIN-TOP: 12px; MARGIN-BOTTOM: 0px"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;The term of the Arcion
Agreement continues, on a country-by-country and product-by-product
basis, until the earlier of (i)&amp;#xA0;the expiration of the royalty
term for a particular Arcion Product in a particular country or
(ii)&amp;#xA0;the effective date of termination by either party
pursuant to customary termination provisions. The royalty term for
any given country is the later of (i)&amp;#xA0;the first date there are
no valid claims against any Arcion patent, (ii)&amp;#xA0;expiration of
patent exclusivity or (iii)&amp;#xA0;tenth anniversary of the first
commercial sale. Further, the Company may, in its sole discretion,
terminate the Arcion Agreement upon certain notice to Arcion. Upon
expiration of the Agreement pursuant to clause (i)&amp;#xA0;above with
respect to a particular Arcion Product and country, the Company and
its affiliates shall have the perpetual, unrestricted, irrevocable,
fully-paid, royalty-free exclusive right, with rights of
sublicense, to make, have made, use, sell, offer for sale, and
import such Arcion Product in such country.&lt;/font&gt;&lt;/p&gt;
&lt;p style="MARGIN-TOP: 12px; MARGIN-BOTTOM: 0px"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="2"&gt;In conjunction with this
transaction, the March 2013 payment to Arcion of $2.1 million in
unregistered Common Stock was for in-process research and
development and has been recorded as research and development
expense in the condensed consolidated statement of operations for
the six months ended June&amp;#xA0;30, 2013.&lt;/font&gt;&lt;/p&gt;
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