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Note 1 - Description of Business and Corporate History | 12 Months Ended
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Dec. 31, 2015
Notes to Financial Statements |
Nature of Operations [Text Block] |
1. | Description of Business and Corporate History
Diffusion Pharmaceuticals Inc. (f/k/a RestorGenex Corporation) (“Company”) is a specialty biopharmaceutical company focused on developing products for ophthalmology, oncology and dermatology. Unless the context otherwise indicates, all information in these notes relates to the Company during the years ended December 31, 2015 and 2014 and does not reflect the completion of the Merger (as defined below). RestorGenex’s primary product is a novel PI3K/Akt/mTOR pathway inhibitor which has completed two Phase I clinical trials for age-related macular degeneration and is in pre-clinical development in oncology, specifically glioblastoma multiforme. The Company’s current pipeline also includes a “soft” anti-androgen compound for the treatment of acne vulgaris. The Company’s novel inhibition of the PI3K/Akt/mTOR pathway and unique targeting of the androgen receptor show promise in a number of additional diseases, which the Company is evaluating for the purpose of creating innovative therapies that are safe and effective treatments to satisfy unmet medical needs. On January 8, 2016, the Company completed its previously announced merger (“Merger”) with Diffusion Pharmaceuticals LLC (“Diffusion LLC”), and changed its name to Diffusion Pharmaceuticals, Inc. Diffusion LLC is a clinical-stage specialty pharmaceutical company developing new, small-molecule drugs that help regulate the movement of oxygen into tissue by a novel mechanism of action. The Company’s lead product candidate, trans sodium crocetinate (“TSC”), uses this novel mechanism to re-oxygenate the microenvironment of solid cancerous tumors, thereby enhancing tumor cells’ response to conventional treatment without additional side effects. See note 17 to the consolidated financial statements for additional information regarding the Merger. On June 18, 2015, the Company changed its state of incorporation from the State of Nevada to the State of Delaware. On March 7, 2014, the Company effected a one-for-100 reverse split of its outstanding common stock. All share data have been adjusted retroactively to reflect the one-for-100 reverse stock split effected on March 7, 2014. On March 3, 2014, the Company entered into an agreement and plan of merger with Paloma Acquisition, Inc., Paloma Pharmaceuticals, Inc. (“Paloma”) and David Sherris, Ph.D., as founding stockholder and holder representative, pursuant to which the Company agreed to acquire by virtue of a merger all of the outstanding capital stock of Paloma, with Paloma becoming a wholly owned subsidiary of the Company. On March 28, 2014, the merger with Paloma was effected and the Company issued an aggregate of 2,500,000 shares of common stock to the holders of Paloma’s common stock and its derivative securities, which included the assumption of promissory notes of Paloma in the aggregate amount (including both principal amount and accrued interest) of approximately $1,151,725, to be paid on the first anniversary of the closing date of the Paloma merger. For accounting purposes, the acquisition date was deemed to be March 3, 2014, the date the Company assumed oversight and control of the activities of Paloma and VasculoMedics. Also on March 3, 2014, the Company entered into an agreement and plan of merger with VasculoMedics Acquisition, Inc., VasculoMedics, Inc. (“VasculoMedics”) and David Sherris, Ph.D. pursuant to which the Company agreed to acquire by merger all of the outstanding capital stock of VasculoMedics, with VasculoMedics becoming a wholly owned subsidiary of the Company. The VasculoMedics merger was concurrently closed with and as a condition to the closing of the Paloma merger on March 28, 2014 and the Company issued an aggregate of 220,000 shares of common stock to the VasculoMedics stockholders. Effective September 30, 2013, the Company entered into an agreement and plan of merger with Canterbury Acquisition LLC, Hygeia Acquisition, Inc., Canterbury Laboratories, LLC (“Canterbury”), Hygeia Therapeutics, Inc. (“Hygeia”) and Yael Schwartz, Ph.D., as holder representative, pursuant to which the Company agreed to acquire by virtue of two mergers all of the outstanding capital stock of Canterbury and Hygeia, with Canterbury and Hygeia becoming wholly owned subsidiaries of the Company. The consideration paid by the Company in connection with such mergers was the issuance by the Company of an aggregate of 1,150,116 shares of common stock issued to the stakeholders of Canterbury and Hygeia. The mergers were completed on November 18, 2013. For accounting purposes, the acquisition date was deemed to be September 30, 2013, the date the Company assumed oversight and control of the activities of the acquired companies. Prior to the Company repositioning itself as a specialty biopharmaceutical company in 2013, the Company operated various entertainment and sports events which it acquired in a series of acquisitions beginning in March 2008 and operated under the name Stratus Media Group, Inc. until March 7, 2014 when the Company changed its name to RestorGenex Corporation.

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- Definition The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6003-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 2A -URI http://asc.fasb.org/extlink&oid=51801978&loc=SL51803626-108592 + Details
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