Recent Updates
Recently added Catalysts

pdmFlu vaccine

Phase 1

Grippe | Vaccine | Infectious Disease |Pfizer, Inc.|Trials Updated: Feb 23, 2026

pdmFlu vaccine development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Dec 2023

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment157

FDA Designations

No designations recorded

pdmFlu vaccine clinical trials

pdmFlu vaccine · 1 trial · 3 indications

Phase 1 1
NCT06179446A Study to Learn How Safe, Tolerable and Capable of Producing an Immune Response is, a Modified RNA Vaccine Against Pandemic InfluenzaGrippe
COMPLETED157 Analytics
PHASE1COMPLETED
A Study to Learn How Safe, Tolerable and Capable of Producing an Immune Response is, a Modified RNA Vaccine Against Pandemic Influenza
GrippeUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of participants by age group reporting local reactions
For 7 days after vaccination
Percentage of participants by age group reporting systemic events
For 7 days after vaccination
Percentage of participants by age group reporting adverse events
From vaccination to 4 weeks after each vaccination
Percentage of participants by age group reporting serious adverse events
From vaccination to 6 months after last vaccination or through the last visit, whichever is longer
Percentage of participants by age group reporting medically attended adverse events
From vaccination to 6 months after last vaccination or through the last visit, whichever is longer
Percentage of participants by age group with abnormal hematology and chemistry laboratory values
1 week, 3 weeks, 6 weeks, 8 weeks and 12 weeks after vaccination 1, 1 week and 4 weeks after vaccination 2, 1 week and 4 weeks after booster vaccination
Percentage of participants by age group with grading shifts in hematology and chemistry laboratory assessments
Between baseline and 1 week, 3 weeks, 6 weeks, 8 weeks and 12 weeks after vaccination 1, 1 week and 4 weeks after vaccination 2, 1 week and 4 weeks after booster vaccination
Percentage of participants by age group with new clinically significant ECG abnormalities
1 week, 3 weeks, 6 weeks, 8 weeks and 12 weeks after vaccination 1, 1 week and 4 weeks after vaccination 2, 1 week and 4 weeks after booster vaccination
Percentage of participants by age group with new troponin I abnormalities
1 week, 3 weeks, 6 weeks, 8 weeks and 12 weeks after vaccination 1, 1 week and 4 weeks after vaccination 2, 1 week and 4 weeks after booster vaccination

Secondary Endpoints

Geometric mean titers (GMTs) of hemagglutination inhibition (HAI) titers
At baseline, 1 week, 3 weeks, 6 weeks, 8 weeks and 12 weeks, 16 weeks and 6 months after vaccination 1, 1 week, 4 weeks, 3 months and 6 months after vaccination 2, 1 week, 4 weeks, 12 weeks and 6 months after booster vaccination
Geometric mean fold rise (GMFR) in HAI titers from before vaccination to each subsequent timepoint
At baseline, 1 week, 3 weeks, 6 weeks, 8 weeks and 12 weeks, 16 weeks and 6 months after vaccination 1, 1 week, 4 weeks, 3 months and 6 months after vaccination 2, 1 week, 4 weeks, 12 weeks and 6 months after booster vaccination
Proportion of participants by age group achieving HAI seroconversion
At baseline, 1 week, 3 weeks, 6 weeks, 8 weeks and 12 weeks, 16 weeks and 6 months after vaccination 1, 1 week, 4 weeks, 3 months and 6 months after vaccination 2, 1 week, 4 weeks, 12 weeks and 6 months after booster vaccination
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelSEQUENTIAL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
pdmFlu vaccine 1EXPERIMENTAL -
pdmFlu vaccine 2EXPERIMENTAL -
pdmFlu vaccine 3EXPERIMENTAL -
pdmFlu vaccine 4EXPERIMENTAL -
pdmFlu vaccine 5EXPERIMENTAL -
pdmFlu vaccine 6EXPERIMENTAL -
pdmFlu vaccine 7EXPERIMENTAL -
pdmFlu vaccine 8EXPERIMENTAL -
PlaceboPLACEBO_COMPARATOR -
Licensed influenza vaccineACTIVE_COMPARATOR -

Interventions

NameTypeDescription
pdmFlu vaccineBIOLOGICALIntramuscular injection
PlaceboBIOLOGICALIntramuscular injection
Licensed influenza vaccineBIOLOGICALIntramuscular injection
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to 84 Years
SexALL
Healthy VolunteersYes
Study Sites3

Key Inclusion Criteria: \- Healthy participants who are determined by medical history, physical examination (if required), and clinical judgment of the investigator to be eligible for inclusion in the study. Key Exclusion Criteria: \- Does not meet seasonal influenza vaccine requirements per coho...

Countries:United States
Unlock Eligibility Criteria

Frequently asked questions about pdmFlu vaccine

What is pdmFlu vaccine?

pdmFlu vaccine is an investigational modified RNA vaccine developed by Pfizer for protection against pandemic influenza, the disease referred to in French as Grippe. It is designed to prompt an immune response to influenza virus strains with pandemic potential and has been studied in healthy adult volunteers.

What is pdmFlu vaccine used for in Grippe?

pdmFlu vaccine is being developed for the prevention of pandemic influenza, listed in its trial as Grippe, the French term for influenza. The Phase 1 study enrolled healthy volunteers aged 18 years and older to assess safety, tolerability, and immune response rather than to treat existing infection.

Who makes pdmFlu vaccine?

Pfizer, Inc. is developing pdmFlu vaccine. Pfizer trades on the New York Stock Exchange under the ticker PFE. The company sponsored the Phase 1 study of the modified RNA pandemic influenza vaccine, which was conducted in the United States.

What phase is pdmFlu vaccine in?

pdmFlu vaccine is in Phase 1 clinical development. It is investigational and has not been approved for use. The single Phase 1 trial, NCT06179446, has been completed, and no trials of pdmFlu vaccine are currently listed as active.

What clinical trials is pdmFlu vaccine in?

pdmFlu vaccine has been studied in one clinical trial, NCT06179446, titled a study to learn how safe, tolerable, and capable of producing an immune response a modified RNA vaccine against pandemic influenza is. The Phase 1 trial was completed, enrolled 157 participants, and was randomized, double-blind, and placebo-controlled.