Clinical trialNCT00737633TerminatedPhase 2Interventional

Open-Label Study to Evaluate the Long-Term Safety and Efficacy of VI-0521 in Type 2 Diabetic Adults

SponsorVIVUS LLCEnrollment101Diabetes

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

This study is an extension of a study that has been ongoing for 1 year. The purpose of this open label study is to see the how well type 2 diabetics respond to VI-0521(phentermine/topiramate) in controlling blood sugar and how safe VI-0521 is over an extended period of time. All subjects eligible to enroll into this study will receive study drug.

clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a FindMyKOL profile link to it; the rest are shown as registered.

Barbara Troupin, MD, MBA
VIVUS LLC
Study Director
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

9 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

Research Site
Birmingham, Alabama, United States
Research Site
Los Angeles, California, United States
Research Site
San Francisco, California, United States
Research Site
Spring Valley, California, United States
Research Site
Walnut Creek, California, United States
Research Site
Bethesda, Maryland, United States
Research Site
Austin, Texas, United States
Research Site
San Antonio, Texas, United States
Research Site
Richmond, Virginia, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

VI-0521

Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 31 Aug 2008
Primary completion: 31 Mar 2009
Completion: 30 Jun 2009
Last update posted: 10 Sept 2012
Registered enrollment: 101
Registry id: NCT00737633

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 11 Nov 2026. Registry facts are shown as registered by the study sponsor; FindMyKOL does not interpret them.