Fosamprenavir clinical trials
Also written GW433908, Lexiva and TELZIR.
How each study uses fosamprenavir is sorted by a rule, right about nine times in ten. Readers can ask us to read every study one by one.Ask us to read each study
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Approvals
The first approval found in each region, with its record
- United States
- 20 Oct 2003 · LEXIVA · NDA 021548 (FDA, Drugs@FDA)
- European Union
- 12 Jul 2004 · Telzir · EMEA/H/C/000534 (EMA; now withdrawn)
From FDA's Drugs@FDA and Purple Book (through openFDA) and the European Medicines Agency, files of Sept 2026 and 27 Oct 2026. National approvals in Europe and other countries are not included. How this is worked out
How studies write it
Studies that test it under each name
Studies by the year they started
28 studies that test it; most in 2005 (5); 1 more planned to start later
| Year | Studies |
|---|---|
| 2000 | 2 |
| 2001 | 2 |
| 2002 | 1 |
| 2003 | 2 |
| 2004 | 3 |
| 2005 | 5 |
| 2007 | 1 |
| 2008 | 5 |
| 2009 | 2 |
| 2010 | 2 |
| 2011 | 2 |
| 2026 | 1 |
By phase
A phase 1/2 study counts in both.
What it is tested for
Each study’s main condition, where its own words name it, so a study counts once.
Who runs them
Industry 17 · Other 12
ViiV Healthcare (9) · GlaxoSmithKline (5) · Garden State Infectious Disease Associates, PA (3) · Radboud University Medical Center (2) · Medical College of Wisconsin (2) · Glaxo Wellcome (2) · French National Agency for Research on AIDS and Viral Hepatitis (1) · Germans Trias i Pujol Hospital (1)
Often tested with
Tested in the same studies.
Ritonavir (19) · Nelfinavir (3) · Lopinavir-ritonavir drug combination (3) · Maraviroc (3) · Saquinavir (2) · Indinavir (2) · Darunavir/Ritonavir (2) · Raltegravir (2)
Related medicines
As reviewed, each with the page that says it.
- One of Protease Inhibitors source
Coming up
From the study records. Dates are the sponsors’ own estimates and often move.
Reaching primary completion within a year · 1
Studies that test fosamprenavir.
- Jul 2027Fosamprenavir for Laryngopharyngeal Upper Airway Tissue Treatment and Enzyme ReductionPhase 2 · Medical College of Wisconsin
Studies
Open first, then newest update. How each study uses fosamprenavir is read from its arms, and is right about nine times in ten. Ask us to read each study. These are the studies that list it as an intervention; a search of ClinicalTrials.gov also finds studies that mention it only in a description, such as earlier treatment.
Testing it · 29
- Oral Fosamprenavir for GERDNot yet recruitingPhase 2Medical College of WisconsinNCT06704100Written as Fosamprenavir Calcium 700 MG Oral Tablet
- Fosamprenavir for Laryngopharyngeal Upper Airway Tissue Treatment and Enzyme ReductionRecruitingPhase 2Medical College of WisconsinNCT04383262Written as Fosamprenavir Calcium
- Dual Boosted Protease Inhibitor Regimens Without Any Additional Antiretroviral Therapy in HIV-1 Infected Patients (ANRS127)CompletedPhase 2French National Agency for Research on AIDS and Viral HepatitisNCT00122603Written as Fosamprenavir
- Study Of An Investigational Regimen Including FDA Approved HIV Drugs In HIV-Infected Pediatric SubjectsCompletedPhase 2ViiV HealthcareNCT00071760Written as GW433908
- Interaction Between Fosamprenavir/Ritonavir and a Single-dose Olanzapine (FORZA)CompletedPhase 1Radboud University Medical CenterNCT00977301Written as fosamprenavir/ritonavir
- Pharmacokinetic Study of Posaconazole Boosted FosamprenavirCompletedPhase 1Radboud University Medical CenterNCT00817765Written as Fosamprenavir
- Study to Determine the Pharmacokinetic Behavior of Antiretroviral Drugs in Patients Infected by HIVCompletedPhase 1Germans Trias i Pujol HospitalNCT00307502Written as Fos-amprenavir/ritonavir
- Fosamprenavir Versus Other Protease InhibitorsCompletedPhase 3ViiV HealthcareNCT00094523Written as Fosamprenavir
- 48-Week Study Of GW433908 And Ritonavir Or GW433908 Alone, Twice Daily In Pediatric Patients With HIV InfectionCompletedPhase 2ViiV HealthcareNCT00089583Written as LEXIVA (GW433908)
- GSK1349572 Drug Interaction Study With Fosamprenavir/RitonavirCompletedPhase 1ViiV HealthcareNCT01209065Written as Fosamprenavir
- Fosamprenavir Expanded AccessCompletedPhase 4ViiV HealthcareNCT00240552Written as fosamprenavir
- An Interaction Study to Assess Drug Levels in Fasting Healthy Adult SubjectsCompletedNot applicableGarden State Infectious Disease Associates, PANCT00802074Written as Fosamprenavir
- An Interaction Study to Assess Drug Levels in Healthy Adult SubjectsCompletedNot applicableGarden State Infectious Disease Associates, PANCT00614991Written as Fosamprenavir
- An Interaction Study to Assess Drug Levels in Healthy Adult SubjectsCompletedPhase 2Garden State Infectious Disease Associates, PANCT00764465Written as Fosamprenavir
- HCV Evolution in HIV/HCV (Genotype 1) Coinfected Patients Treated With FosamprenavirCompletedPhase 4Fundacion SEIMC-GESIDANCT01222611Written as Fosamprenavir
- Interaction of Buprenorphine With HIV Medications and Tuberculosis MedicationsCompletedPhase 1University of California, San FranciscoNCT00877591Written as Fosamprenavir/Ritonavir
- A Pharmacokinetic (PK) Study of a Combination of Indinavir, Ritonavir, and AmprenavirCompletedPhase 4Emory UniversityNCT00148785Written as Indinavir/Ritonavir/Fosamprenavir
- A Study To Assess GW433908 (Fosamprenavir) Containing Regimens In HIV-1 Infected SubjectsCompletedPhase 3ViiV HealthcareNCT00296504Written as fosamprenavir (GW433908)
- Study to Explore Safety And Tolerability of Fosamprenavir With or Without Ritonavir in Combination With TRIZIVIR or COMBIVIRCompletedPhase 3GlaxoSmithKlineNCT00043888Written as fosamprenavir
- HIV-1 Infection Study of Once a Day Versus Twice a Day Protease Inhibitor in Antiretroviral Treatment Naive AdultsCompletedPhase 3ViiV HealthcareNCT00450580Written as fosamprenavir/ritonavir
See all 29 studies that test fosamprenavir →
Given beside what is tested · 2 — fosamprenavir is usual care or a partner of the new treatment
- A Clinical Study Of An Investigational Regimen Including Marketed HIV Drugs In HIV-1 Pediatric Subjects Ages 2-18 YearsCompletedPhase 2ViiV HealthcareNCT00040664Written as fosamprenavir
- Boosted Lexiva With Lovaza Adjunctive Therapy in Hypertriglyceridemic, HIV-Infected SubjectsCompletedPhase 4Felizarta, Franco, M.D.NCT01010399Written as fosamprenavir/ritonavir
As the comparator · 1 — what is tested is compared with fosamprenavir
Codes
What other systems call fosamprenavir · ClinicalTrials.gg INT004343
- MeSH (NLM) C426859fosamprenavirConfirmed ClinicalTrials.gov, NLM, Wikidata
- UNII (FDA) WOU1621EEGFOSAMPRENAVIRConfirmed FDA, NLM, Wikidata
- RxNorm 358262Confirmed FDA, Wikidata
- Wikidata Q1385311fosamprenavirConfirmed FDA, NLM, Wikidata
- NCI Thesaurus C83720FosamprenavirOne source FDA
- DrugBank DB01319One source Wikidata
| System | Code | Name there | Checked by |
|---|---|---|---|
| MeSH (NLM) | C426859 | fosamprenavir | Confirmed ClinicalTrials.gov, NLM, Wikidata |
| UNII (FDA) | WOU1621EEG | FOSAMPRENAVIR | Confirmed FDA, NLM, Wikidata |
| RxNorm | 358262 | — | Confirmed FDA, Wikidata |
| Wikidata | Q1385311 | fosamprenavir | Confirmed FDA, NLM, Wikidata |
| NCI Thesaurus | C83720 | Fosamprenavir | One source FDA |
| DrugBank | DB01319 | — | One source Wikidata |
Also registered as fosamprenavir calcium (UNII ID1GU2627N · RxNorm 402365) and fosamprenavir sodium (UNII XSG28FSA0W).
“Confirmed” means two independent publishers link the code to this drug; “one source”, one does and its name agrees.