Drugs / VI-0521
last change Jan 2026 re-read 9 days ago

VI-0521

also known as PHEN/TPM
Developed for
hypertensive disorder · obesity, hyperphagia, and developmental delay
Investigated by
VIVUS LLC

Trials 3

2009201020112012201320142015201620172018201920202021202220232024202520262027
PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 11 trial
Phase 1 NCT00821496 Jan → Mar 2009 — VIVUS LLC Completed No outcome recorded
Phase 42 trials · 1 met primary
Phase 4 NCT05215418 Jan 2022 → Apr 2023 hypertensive disorder VIVUS LLC Completed Met primary
Phase 4 NCT02714062 Mar → Oct 2016 obesity, hyperphagia, and developmental delay VIVUS LLC Completed No outcome recorded
Comparator or background therapy1 trial
Phase 1 NCT00839891 Comparator Feb → Apr 2009 torsades de pointes VIVUS LLC Completed No outcome recorded

News releases announcing trial results or a regulatory action · 16

DateIssuerRelease
2026-01-26 VIVUS LLC Results New Clinical Data Demonstrate that VIVUS’ QSYMIA in Combination with Digitally Enhanced Lifestyle Interventions (DELI) Leads to Significantly Greater Reductions in Weight and Cardiovascular Risk vivus.com ↗
Results show that QSYMIA in combination with DELI significantly improved weight loss, percentage of body weight lost, and atherosclerotic cardiovascular disease (ASCVD) risk compared with DELI plus placebo.
2025-03-10 VIVUS LLC Regulatory VIVUS Launches QSYMIA in the United Arab Emirates vivus.com ↗
VIVUS LLC, a biopharmaceutical company committed to the development and commercialization of innovative therapies that focus on advancing treatments for patients with serious unmet medical needs, announced the market approval of QSYMIA® (phentermine and topiramate extended-release capsules) CIV in the United Arab Emirates (UAE) for treatment of overweight and obesity in adults and pediatric patients, age 12 and older.
2024-10-28 VIVUS LLC Regulatory VIVUS Shares Significant Regulatory Update on QSYMIA vivus.com ↗
VIVUS announced today that the U.S. Food and Drug Administration has removed the requirement for a cardiovascular outcome trial for its weight - management medication QSYMIA (phentermine and topiramate extended release capsules) CIV.
2024-10-23 VIVUS LLC Regulatory VIVUS Announces Labeling Update vivus.com ↗
VIVUS LLC, a biopharmaceutical company committed to the development and commercialization of innovative therapies that focus on advancing treatments for patients with serious unmet medical needs, today announced the United States Food and Drug Administration (FDA) approved a labeling update for QSYMIA® (phentermine and topiramate extended-release capsules CIV).
2023-11-28 VIVUS LLC Results New Clinical Data Demonstrate that QSYMIA, the Leading Once-Daily Oral Weight Management Medication, Reduces Blood Pressure vivus.com ↗
This data supports that beyond beneficial effects of reducing body weight, QSYMIA also favorably affects blood pressure – a common and important health metric.
2023-05-17 VIVUS LLC Results VIVUS QSIVA in Combination with a Digital Lifestyle Intervention Leads to Significant Weight Loss and Decreased Cardiovascular Risk in Patients with Obesity vivus.com ↗
VIVUS BV, the European affiliate of VIVUS LLC (“VIVUS”), a biopharmaceutical company, today announced the results of a clinical study (NCT04408586) demonstrating that QSIVA (phentermine and topiramate modified-release) hard capsules in combination with a DLI resulted in significantly greater weight loss and cardiovascular risk reduction in patients with obesity compared with the DLI alone.
2022-07-20 VIVUS LLC Regulatory FDA Approves QSYMIA for the Treatment of Obesity in Adolescents Ages 12 to 17 vivus.com ↗
FDA Approves QSYMIA® for the Treatment of Obesity in Adolescents Ages 12-17
2020-01-07 VIVUS LLC Results New Data Further Demonstrate Effectiveness of VIVUS Qsymia as a Weight Management Tool vivus.com ↗
Data published in Journal of General Internal Medicine show that patients using Qsymia and other weight loss tools, lost at least 5% of body weight loss compared with those not using Qsymia
2019-12-18 VIVUS LLC Results VIVUS Announces New Data Supporting the Safety and Efficacy of Qsymia in Adolescents with Obesity vivus.com ↗
Data published in Diabetes, Obesity and Metabolism demonstrate that Qsymia provides statistically significant weight loss compared with placebo over an 8 week period, provide basis for ongoing 56 week phase 4 study in obese adolescents
2019-11-20 VIVUS LLC Results New Clinical Data Demonstrate VIVUS Qsymia is Effective at Reducing Binge Eating in Patients with Binge Eating Disorder or Bulimia Nervosa vivus.com ↗
Additionally, Qsymia was well tolerated in these patient populations.
2019-10-07 VIVUS LLC Regulatory VIVUS Announces Acceptance of Qsymia Decentralized Marketing Authorization Application in Europe vivus.com ↗
VIVUS Announces Acceptance of Qsymia Decentralized Marketing Authorization Application in Europe
2019-08-21 Alvogen Korea Regulatory Alvogen receives approval of Qsymia® in the Republic of Korea alvogen.com ↗
Alvogen has obtained marketing approval for Qsymia (phentermine and topiramate extended-release) from the South Korea Ministry of Food and Drug Safety (MFDS) in partnership with VIVIS Inc. (Nasdaq:VVUS).

All press releases naming this drug 16 releases

DateIssuerRelease

Evidence & citations 3 cited values

Every value below carries the sentence it was read from. 4 sources stand behind the page.

FieldValueCited text
Known as VI-0521 “VI-0521 (Phentermine 3.75 mg + Topiramate 23 mg) oral capsule” NCT05215418 ↗
3

NCT00839891 ↗

NCT00821496 ↗

NCT02714062 ↗

Known as PHEN/TPM “This three-arm, parallel group, double-blind, active- and placebo-controlled study comparing VI-0521 at a potential therapeutic dose of PHEN/TPM 7.5/46 and PHEN/TPM 22.5/138 ,...” NCT00839891 ↗
Route Oral “multiple oral doses of VI-0521” NCT00821496 ↗