The top pre-market NASDAQ stock market gainers are: Orexigen Therapeutics, VIVUS, Microvision, Aixtron, Dynamex, ASM International, Zix, Ryanair Holdings, Geron, and Oracle.

Orexigen Therapeutics, Inc. (OREX) surged 146.22 percent to $11.72 in the pre-market session. The company and Takeda Pharmaceutical Co. said FDA advisory committee backed Orexigen's new diet pill Contrave or naltrexone sustained release-SR/bupropion SR for the treatment of obesity despite heart risk concerns.

Orexigen said the committee also voted for a detailed study to examine the drug's effect on risk for major adverse cardiac events should be conducted as a post-approval requirement versus pre-approval.

VIVUS Inc. (VVUS) soared 22.05 percent to $9.52 in the pre-market session. The FDA panel's approval of Orexigen's new weight loss drug Contrave gave a lift to VIVUS shares. VIVUS said in late October that it is preparing a comprehensive response on its diet drug Qnexa Controlled-Release Capsules and plans to submit the response to the FDA in around six weeks, after the drug got rejected from FDA.

Microvision Inc. (MVIS) jumped 19.53 percent to $2.02 in the pre-market trading. The company said it entered into a memorandum of understanding with Pioneer Corp. to manufacture and distribute display engines and display engine subsystems for consumer and in-vehicle head-up displays using the MicroVision proprietary PicoP laser display technology.

Aixtron AG (AIXG) improved 5.11 percent to $36.83 in the pre-market trading.

Dynamex Inc. (DDMX) climbed 4.12 percent to $25.25 in the pre-market session. The company said DashNow Holding Corp. and DashNow Acquisition Corp. submitted a formal binding offer for the acquisition of Dynamex for $25 a share. The company's board determined the takeover proposal as a 'superior proposal'.

ASM International NV (ASMI) gained 3.54 percent to $30.39 in the pre-market session.

Zix Corp. (ZIXI) grew 2.35 percent to $4.35 in the pre-market trading. The company said it will offer secure email to an additional 10,000 state government employees in a new contract with Ohio. The addition expands Ohio’s contract for ZixCorp Email Encryption Services to more than 11,000 users across 53 departments, boards and commissions.

Ryanair Holdings plc (RYAAY) increased 2.21 percent to $31 in the pre-market trading.

Geron Corp. (GERN) rose 1.40 percent to $5.07 in the pre-market session.

Oracle Corp. (ORCL) moved up 0.96 percent to $29.33 in the pre-market trading. The company announced the availability of Oracle Exalogic Elastic Cloud X2-2, a complete cloud application infrastructure for consolidating the widest possible range of Java and non-Java application types and workloads and meeting the most demanding service-level requirements.

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