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A Study to Learn About PAXLOVID (a Commercial Medicine) In People With COVID-19

NCT05263908 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 3346

Last updated 2025-09-03

Study results available
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Summary

The purpose of this post marketing observational study is to learn about the safety and effects of the commercial medicine (called PAXLOVID) for the treatment of COVID-19. This study is intended to be registered with the participants who:

* Have taken PAXLOVID PACK and have no history of using this medicine.
* Are 12 years and older

All participants will receive PAXLOVID, a standard treatment for COVID-19. Participants will take PAXLOVID 2 times a day by mouth or as prescribed.

We will examine the experiences of people taking PAXLOVID. This will help us determine if PAXLOVID is safe and effective.

Participants will be followed up for 28 days after taking PAXLOVID. During this time, participants will be closely watched for the safety and effects of PAXLOVID.

Conditions

Interventions

DRUG

nirmatrelvir / ritonavir

The usual dosage in adults and pediatric patients (≥12 years of age weighing ≥40 kg) is 300 mg of Nirmatrelvir and 100 mg of ritonavir all taken together orally twice daily for 5 days.

Sponsors & Collaborators

Principal Investigators

  • Pfizer CT.gov Call Center · Pfizer

Eligibility

Min Age
12 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-03-31
Primary Completion
2023-07-10
Completion
2023-07-10

Countries

  • Japan

Study Locations

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Entities

Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05263908 on ClinicalTrials.gov