Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT00420355 · ClinicalTrials.gov registry record · Phase 4
Pharmacokinetic Study of Two HIV Protease Inhibitors in Patients
A Phase 4 study, sponsored by University of Oklahoma.
- Terminated
- Registry status
- Phase 4
- Development phase
- 19
- Enrollment target
NCT00420355: Clinical Trial Phase 4 study, sponsored by University of Oklahoma.
NCT00420355 is a Phase 4 study that was terminated before completion, run by University of Oklahoma. The registered enrollment target is 19 participants, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (96% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00420355, a Phase 4 study, was terminated before completion, sponsored by University of Oklahoma.
- TERMINATED
- Registry status
- Phase 4
- Development phase
- 19 participants
- Enrollment target
Study Summary
The objective of this study is to determine the pharmacokinetics of lopinavir, ritonavir, and atazanavir when lopinavir/ritonavir and atazanavir are used in combination.
Interventions
- DRUG atazanavir
- DRUG lopinavir/ritonavir
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 19 participants |
| Start Date | 2007-04 |
| Est. Completion | 2008-09 |
| Phase | Phase 4 |
Why NCT00420355 stopped before completion
NCT00420355 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 19 participants, a relatively small participant target, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (96% lower).
The record links to 0 conditions, and to 2 interventions - of which atazanavir is the first listed.
NCT00420355 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00420355 about?
NCT00420355 is a clinical study titled "Pharmacokinetic Study of Two HIV Protease Inhibitors in Patients". The objective of this study is to determine the pharmacokinetics of lopinavir, ritonavir, and atazanavir when lopinavir/ritonavir and atazanavir are used in combination.
What is the current status of trial NCT00420355?
This trial is currently terminated. It is a Phase 4 study. The enrollment target is 19 participants. The study started on 2007-04. Estimated completion is 2008-09.
What interventions are being tested in trial NCT00420355?
The interventions under investigation include: atazanavir (DRUG), lopinavir/ritonavir (DRUG).
Who is sponsoring clinical trial NCT00420355?
This trial is sponsored by University of Oklahoma, which has 358 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00420355's enrollment target sits among peer trials
19 1834th of 2000 higher than 159 of 2,000 other Phase 4 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 4 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar enrollment target
- NCT03207464 · 19 participants · Phase 1
Molecular Imaging of NET Using [C-11]MRB-PET in MS
- NCT04318717 · 19 participants · Phase 2
Pembrolizumab and Hypofractionated Radiation Therapy for the Treatment of Mucosal Melanoma
- NCT05103904 · 19 participants · Phase 2
Lenvatinib for the Treatment of Recurrent Hepatocellular Carcinoma After Liver Transplant
- NCT05607407 · 19 participants · Phase 2
Methimazole in Patients With Progressive Glioblastoma
Similar registry start date
- NCT05988463 · started 2027-01-01 · Phase 1
Dose-Escalation Study of Artesunate Patients With IPF
- NCT07219706 · started 2026-12-10 · NA
Dietary Fiber and Time Restricted Eating
- NCT02831335 · started 2026-12-01
Technical Development of Multi-Parametric Renocerebral MRI
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia