LIVINGSTON, N.J.--(BUSINESS WIRE)--Columbia Laboratories, Inc. (Nasdaq: CBRX) (the “Company”) today announced that its Board of Directors on September 16, 2011, adopted amendments to its Stockholder Rights Plan (the “Rights Plan”), adopted March 12, 2002, to extend the expiration date of the Rights Plan from March 12, 2012, to July 3, 2013, to preserve the value of significant tax assets associated with the Company’s tax net operating loss carryforwards (“NOLs”) under Section 382 of the Internal Revenue Code.