13G Filing: Armistice Capital and Biopharmx Corp (BPMX)

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Exhibit A

AGREEMENT

The undersigned
agree that this Schedule 13G dated November 30, 2017 relating to the Common Stock, $0.001 par value, of BioPharmX Corporation shall
be filed on behalf of the undersigned.

Armistice Capital, LLC
By:  /s/ Steven Boyd
Steven Boyd
Managing Member
Armistice Capital Master Fund Ltd.
By:  /s/ Steven Boyd
Steven Boyd
Director
/s/ Steven Boyd
Steven Boyd

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