Results of the study were presented in a poster titled "Cardiovascular Safety of Phentermine and Topiramate in a United States Claims Database," (Abstract 983/118). The study was a retrospective cohort analysis conducted in MarketScan Commercial Claims and Medicare Supplemental data. The study evaluated MACE rates during periods of exposure to Qsymia, generic phentermine and topiramate combinations (PHEN/TPM) and phentermine (PHEN) or topiramate (TPM) alone, and compared each of these to MACE rates during unexposed periods in former users of these drugs. MACE was defined as a composite of hospitalization for acute myocardial infarction (AMI), stroke, or in-hospital cardiovascular-related death as determined via discharge status and ICD-9-CM diagnoses.

Propensity scores were calculated to adjust for differences in cardiovascular risk factors among the cohorts. Propensity score-adjusted analyses showed that MACE risk trended lower with current Qsymia and PHEN/TPM use compared with the unexposed cohort. Compared to the unexposed cohort, MACE risk was also lower with current PHEN use and higher with current TPM use. The study authors note that the small number of events that occurred during exposure to Qsymia and PHEN/TPM produced considerable statistical uncertainty in the analysis of these cohorts.

About Qsymia
Qsymia is approved in the United States and is indicated as an adjunct to a reduced-calorie diet and increased physical activity for chronic weight management in adults with an initial body mass index (BMI) of 30 kg/m² or greater (obese) or 27 kg/m² or greater (overweight) in the presence of at least one weight-related medical condition such as high blood pressure, type 2 diabetes, or high cholesterol.

About VIVUS
VIVUS is a biopharmaceutical company committed to the development and commercialization of innovative therapies that focus on advancing treatments for patients with serious unmet medical needs.  For more information about the Company, please visit www.vivus.com.

Forward-Looking Statements
Certain statements in this press release are forward-looking within the meaning of the Private Securities Litigation Reform Act of 1995 and are subject to risks, uncertainties and other factors, including risks and uncertainties related to the timing of initiation and completion of the post-approval clinical studies required as part of the approval of Qsymia by the U.S. Food and Drug Administration, or FDA; risks and uncertainties related to the response from FDA to any data and/or information relating to post-approval clinical studies required for Qsymia; risks and uncertainties related to our ability to work with FDA to significantly reduce or remove the requirements of the clinical post-approval cardiovascular outcomes trial, or CVOT; risks and uncertainties related to the impact of the indicated uses and contraindications contained in the Qsymia label and the Risk Evaluation and Mitigation Strategy, or REMS, requirements; risks and uncertainties related to the fact that we may be required to provide further analysis of previously submitted clinical trial data; and risks and uncertainties related to our dialog with the European Medicines Agency, or EMA, relating to real world safety data for Qsymia and the resubmission of the marketing authorization application, and the assessment by the EMA of the marketing authorization application and the real world safety data. These risks and uncertainties could cause actual results to differ materially from those referred to in these forward-looking statements. The reader is cautioned not to rely on these forward-looking statements. Investors should read the risk factors set forth in VIVUS' Form 10-K for the year ended December 31, 2017 as filed on March 14, 2018, and as amended by the Form 10-K/A filed on April 26, 2018, and periodic reports filed with the Securities and Exchange Commission. VIVUS does not undertake an obligation to update or revise any forward-looking statements.