This site contains promotional information intended only for healthcare professionals resident in the United Kingdom

Visit Pfizer Medical site

Menu

Close

Sign InLog Out
  • EN
Single LinkDropdownLabelLinkLinkLinkLinkLinked DropdownLabelLinkLinkLinkLinkMega MenuHeading

Example of description text sitting alongside header

LabelLinkLinkLinkLinkLabelLinkLinkLinkLinkLabelLinkLinkLinkLink
Linked Mega MenuHeading

Example of description text sitting alongside header

LabelLinkLinkLinkLinkLabelLinkLinkLinkLinkLabelLinkLinkLinkLink
EN - EnglishSelect a languageLanguagesEN - EnglishFR - Françias

Menu

Close

Sign InLog Out
  • EN
Single LinkDropdownLabelLinkLinkLinkLinkLinked DropdownLabelLinkLinkLinkLinkMega MenuHeading

Example of description text sitting alongside header

LabelLinkLinkLinkLinkLabelLinkLinkLinkLinkLabelLinkLinkLinkLink
Linked Mega MenuHeading

Example of description text sitting alongside header

LabelLinkLinkLinkLinkLabelLinkLinkLinkLinkLabelLinkLinkLinkLink
EN - EnglishSelect a languageLanguagesEN - EnglishFR - Françias
Search

Menu

Close

Sign In or RegisterLog Out
Pfizer MedicinesTherapy AreasExplore ContentEventsVideosMaterialsFeatured ArticlesLet’s ConnectSupplyAlliance HealthcareOff-contract claims

Adverse event reporting can be found at the bottom of the page

Menu

Close

Mechanism of Action DosingDosing InformationDose AdjustmentsDrug Interactions Trial Design & EfficacyTrial DesignEfficacySafety Profile & Tolerability  Support & ResourcesFrequently Asked QuestionsEducational ResourcesHCP Experience VideosNICE Guidance

Prescribing Information for PAXLOVID (nirmatrelvir / ritonavir) can be found here: Great Britain and Northern Ireland. Adverse event reporting information can be found at the bottom of the page. Please note, there are differences between the SmPC for Northern Ireland and the SmPC for Great Britain. Please refer to the appropriate SmPC depending on where you are based.

Paxlovid has a Conditional Marketing Authorisation in Great Britain. A Conditional Marketing Authorisation means that further evidence on this medicinal product is awaited. New information on this medicinal product will be reviewed when any relevant information of significance becomes available and at least every year and the product information will be updated as necessary.

For information tailored to where you are based, please select the appropriate tab below:
 

Great Britain

Northern Ireland

PAXLOVID reduced the risk of progression to severe ​​​​​COVID-191,4*

In the EPIC-HR trial, for patients who received treatment ≤3 days from symptom onset, Paxlovid demonstrated: 



Primary Endpoint results (final analysis in the mITT population):1
​​​​

Paxlovid demonstrated ~89% relative risk reduction in hospitalisation or death
compared with placebo (absolute risk reduction -6.14%) (P<0.0001).

**RRR=(44/647)-(5/671)/(44/647)5


In the EPIC-HR trial, for patients who received treatment ≤5 days from symptom onset, Paxlovid demonstrated: 

Secondary Endpoint results (final analysis in the mITT1 population):1

  • Paxlovid demonstrated ~86% relative risk reduction (RRR = (64/989) - (9/977)/ (64/989)** in hospitalisation or death compared with placebo.
  • Paxlovid demonstrated an absolute risk reduction of -5.64% (95% CI -7.31, -3.97) (P<0.0001).
 

COVID-19 related hospitalisation or death from any cause through Day 28: 

  • Paxlovid: 9 (0.92%) | N = 977
  • Placebo: 64 (6.47%) | N = 989

Results from subgroup analyses were generally consistent regardless of baseline serology, age, BMI, sex and number of co-existing conditions.


EPIC-HR Trial Design: The safety and efficacy of Paxlovid were evaluated in EPIC-HR (N=2113), a phase 2/3, randomised, double-blind, placebo-controlled study in nonhospitalised, symptomatic adult participants with a laboratory-confirmed diagnoses of SARS-CoV-2 infection at high risk for progression to severe disease. The primary endpoint assessed the proportion of participants with COVID-19–related hospitalisation or death from any cause through Day 28 when treated ≤3 days of symptom onset. The secondary endpoint similarly assessed patients treated ≤5 days of symptom onset.1,4

  • PAXLOVID demonstrated consistent efficacy across most patient types regardless of baseline serology, age, sex, number of co-existing conditions and weight.1​​​​​
  • Learn more about the trial design here.
Generally consistent results across a broad patient population
Footnotes:
ARR, absolute risk reduction; BMI, body mass index; COVID-19, coronavirus disease 2019; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; CI, Confidence Interval

*Data analysis set was updated after post hoc removal of data for 133 participants due to Good Clinical Practice quality issues. The information on this page references the full analysis study population, whereas the GB Summary of Product Characteristics references the interim analysis, which was conducted before these amendments.

**(RRR =Control Event Rate - Experimental Event rate / Control Event rate). Substantiation made using the references and How to calculate risk - BMJ Best Practice.5

¶Difference from Placebo. Baseline SARS-CoV-2 serology status Negative: -9.78 (95% CI -12.85 to -6.71, p<.0001), Positive: -1.47 (95% CI -2.70 to -0.25, p=.0179); Age <65 years: -4.33 (95% CI -5.97 to -2.69, p<.0001), > 65 years: -14.63 (95% CI -21.20 to -8.06, p<.0001); BMI <25: -3.52 (95% CI -6.42 to -0.62, p=.0175), 25 to <30: -5.49 (95% CI -7.87 to -3.10, p<.0001), >30: -7.09 (95% CI -10.37 to -3.82, p<.0001); Sex Male: -6.81 (95% CI -9.34 to -4.27, p<.0001), Female -4.42 (95% CI -6.57 to -2.26, p<.0001); Co-existing conditions 0-1: -4.87 (95% CI -6.54 to -3.21, p<.0001), 2-3: -8.61 (95% CI -13.69 to -3.54, p = .0009).

These are links to third-party-websites outside of Pfizer. Links to external websites are provided as a resource to the reader. These websites are neither owned or controlled by Pfizer Ltd. Pfizer accepts no responsibility for the content or services of the linked sites. 

References:
1. Pfizer Data on File excerpts from Full Clinical Study Report for EPIC-HR and Core Data Sheet, February 2024
2. Goyal A, Reeves DB, Cardozo-Ojeda EF, Schiffer JT, Mayer BT. Viral load and contact heterogeneity predict SARS-CoV-2 transmission and super-spreading events. eLife. 2021;10:e63537.
3. Schiffer JT, Johnston C, Wald A, Corey L. 2020. An early Test-and-Treat strategy for severe acute respiratory syndrome coronavirus 2. Open Forum Infectious Diseases 7:ofaa232. DOI: https://doi.org/10.1093/ofid/ofaa232, PMID: 32661497
4. PAXLOVID GB Summary of Product Characteristics. Pfizer Inc.

5. BMJ Best Practice. Understanding Statistics: risk. Available at: https://bestpractice.bmj.com/info/us/toolkit/learn-ebm/how-to-calculate-risk/ (Accessed February 2024).

Efficacy & Trial DesignEfficacy See PAXLOVID in Action

Find out more about how PAXLOVID works.

Watch now Loading
Safety Profile & Tolerability EXPLORE MORE

Learn more about the safety profile & tolerability of PAXLOVID. 

Learn moreLoading
Dosing

Learn about PAXLOVID dosing and potential drug interactions before you prescribe.

Find out moreLoading

PAXLOVID reduced the risk of progression to severe ​​​​​COVID-191,4*

In the EPIC-HR trial, for patients who received treatment ≤3 days from symptom onset, Paxlovid demonstrated: 



Primary Endpoint results (final analysis in the mITT population as per SmPC):1,4
​​​​

Paxlovid demonstrated ~89% relative risk reduction in hospitalisation or death
compared with placebo (absolute risk reduction -6.14%) (P<0.0001).

**RRR=(44/647)-(5/671)/(44/647)5


In the EPIC-HR trial, for patients who received treatment ≤5 days from symptom onset, Paxlovid demonstrated: 

Secondary Endpoint results (final analysis in the mITT1 population as per SmPC):1,4

  • Paxlovid demonstrated ~86% relative risk reduction (RRR = (64/989) - (9/977)/ (64/989)** in hospitalisation or death compared with placebo.
  • Paxlovid demonstrated an absolute risk reduction of -5.64% (95% CI -7.31, -3.97) (P<0.0001).
 

COVID-19 related hospitalisation or death from any cause through Day 28: 

  • Paxlovid: 9 (0.92%) | N = 977
  • Placebo: 64 (6.47%) | N = 989

Results from subgroup analyses were generally consistent regardless of baseline serology, age, BMI, sex and number of co-existing conditions.


EPIC-HR Trial Design: The safety and efficacy of Paxlovid were evaluated in EPIC-HR (N=2113), a phase 2/3, randomised, double-blind, placebo-controlled study in nonhospitalised, symptomatic adult participants with a laboratory-confirmed diagnoses of SARS-CoV-2 infection at high risk for progression to severe disease. The primary endpoint assessed the proportion of participants with COVID-19–related hospitalisation or death from any cause through Day 28 when treated ≤3 days of symptom onset. The secondary endpoint similarly assessed patients treated ≤5 days of symptom onset.1,4

  • PAXLOVID demonstrated consistent efficacy across most patient types regardless of baseline serology, age, sex, number of co-existing conditions and weight.1​​​​​
  • Learn more about the trial design here.
Generally consistent results across a broad patient population
Footnotes:
ARR, absolute risk reduction; BMI, body mass index; COVID-19, coronavirus disease 2019; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; CI, Confidence Interval

*The information on this page references the full analysis study population. For information on the interim analysis refer to the NI Summary of Product Characteristics.

**(RRR = Control Event Rate - Experimental Event rate / Control Event rate). Substantiation made using the references and How to calculate risk - BMJ Best Practice.5

¶Difference from Placebo. Baseline SARS-CoV-2 serology status Negative: -9.78 (95% CI -12.85 to -6.71, p<.0001), Positive: -1.47 (95% CI -2.70 to -0.25, p=.0179); Age <65 years: -4.33 (95% CI -5.97 to -2.69, p<.0001), > 65 years: -14.63 (95% CI -21.20 to -8.06, p<.0001); BMI <25: -3.52 (95% CI -6.42 to -0.62, p=.0175), 25 to <30: -5.49 (95% CI -7.87 to -3.10, p<.0001), >30: -7.09 (95% CI -10.37 to -3.82, p<.0001); Sex Male: -6.81 (95% CI -9.34 to -4.27, p<.0001), Female -4.42 (95% CI -6.57 to -2.26, p<.0001); Co-existing conditions 0-1: -4.87 (95% CI -6.54 to -3.21, p<.0001), 2-3: -8.61 (95% CI -13.69 to -3.54, p = .0009).

These are links to third-party-websites outside of Pfizer. Links to external websites are provided as a resource to the reader. These websites are neither owned or controlled by Pfizer Ltd. Pfizer accepts no responsibility for the content or services of the linked sites. 

References:
1. Pfizer Data on File excerpts from Full Clinical Study Report for EPIC-HR and Core Data Sheet, February 2024
2. Goyal A, Reeves DB, Cardozo-Ojeda EF, Schiffer JT, Mayer BT. Viral load and contact heterogeneity predict SARS-CoV-2 transmission and super-spreading events. eLife. 2021;10:e63537.
3. Schiffer JT, Johnston C, Wald A, Corey L. 2020. An early Test-and-Treat strategy for severe acute respiratory syndrome coronavirus 2. Open Forum Infectious Diseases 7:ofaa232. DOI: https://doi.org/10.1093/ofid/ofaa232, PMID: 32661497
4. PAXLOVID NI Summary of Product Characteristics. Pfizer Inc.

5. BMJ Best Practice. Understanding Statistics: risk. Available at: https://bestpractice.bmj.com/info/us/toolkit/learn-ebm/how-to-calculate-risk/ (Accessed February 2024).

Efficacy & Trial DesignEfficacy See PAXLOVID in Action

Find out more about how PAXLOVID works.

Watch now Loading
Safety Profile & Tolerability EXPLORE MORE

Learn more about the safety profile & tolerability of PAXLOVID. 

Learn moreLoading
Dosing

Learn about PAXLOVID dosing and potential drug interactions before you prescribe.

Find out moreLoading
PP-C1D-GBR-0187. February 2024

Adverse Events
 

Adverse Events should be reported. Reporting forms and information can be found at https://coronavirus-yellowcard.mhra.gov.uk/ or search 

for MHRA Yellow Card in Google Play or Apple App Store

 

Adverse events should also be reported to Pfizer Medical Information on 01304 616161

PfizerPro Account

To access further materials, resources and receive communication about medicines and vaccines promoted by Pfizer.

Sign In or RegisterAccountSign Out

This site is intended only for healthcare professionals resident in the United Kingdom. If you are a member of the public wishing to access information on a specific medicine, please visit www.medicines.org.uk/emc

 

This website is brought to you by Pfizer Limited, a company registered in England 

and Wales under No. 526209 with its registered office at Ramsgate Road, Sandwich, Kent, CT13 9NJ

 

Copyright © 2024 Pfizer Limited. All rights reserved.

 

VAT registration number GB201048427

PP-C1D-GBR-0167. January 2024
For UK Healthcare Professionals*

These pages are not intended for patients or for members of the general public. The healthcare professional web pages contain promotional content.

I confirm that I am a healthcare professional* resident in the United Kingdom.

If you select 'No', you will be redirected to Pfizer.co.uk where you will be able to access reference information on Pfizer's prescription medicines.

*The ABPI Code definition for healthcare professional is members of the medical, dental, pharmacy and nursing professionals and any other persons who in the course of their professional activities may administer, prescribe, purchase, recommend or supply a medicine.

PP-UNP-GBR-7812. January 2024

YesNo
You are now leaving PfizerPro​​​​​

​​​​​​​You are now leaving www.pfizerpro.co.uk. Links to external websites are provided as a resource to the viewer. This website is neither owned or controlled by Pfizer Ltd. 

Pfizer accepts no responsibility for the content or services of the linked site.​​​​​​​​​​​​​​

​​​​​​​PP-PFE-GBR-3858. November 2021​​​​​​​
​​​​​​​
You are now leaving PfizerPro
​​​​​​​
​​​​​​​You are now leaving www.pfizerpro.co.uk. Links to external websites are provided as a resource to the viewer. This website is neither owned nor controlled by Pfizer Ltd. 

Pfizer accepts no responsibility for the content or services of the linked site other than the information or other materials relating to ​​​​​Pfizer medicines or 
business which it has provided or reviewed.

PP-PFE-GBR-3859. November 2021
​​​​​​​