CClinicalTrials.gg
CompletedNCT04535167Updated May 3, 2023Results posted

First-In-Human Study To Evaluate Safety, Tolerability, And Pharmacokinetics Following Single Ascending And Multiple Ascending Doses of PF-07304814 In Hospitalized Participants With COVID-19.

A Phase 1 interventional study of PF-07304814 and Placebo in Viral Disease, sponsored by Pfizer. Completed at 13 sites in 4 countries. Open to participants aged 18 Years to 79 Years. Per ClinicalTrials.gov, last updated 2023-05-03.

Sponsored by Pfizer · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
26
Allocation
Randomized
Ages
18 Years to 79 Years
Sex
All
01

Study summary

It is Phase 1b, 2-part, double-blind, placebo-controlled study to evaluate safety, tolerability, and pharmacokinetics of PF-07304814, in patients hospitalized with SARS-CoV-2 virus infection.

Read the detailed description

It is a 2-part study in hospitalized COVID-19 patients.

  • Part 1 is to evaluate safety, tolerability, PK and markers of clinical activity of escalating doses of PF-07304814 given as 24-hour IV infusion.

    2 planned and 3 optional cohorts with 8 participants each are planned.

  • Part 2 is to evaluate safety, tolerability, PK and markers of clinical activity of escalating doses of PF- 07304814 given as 120-hour infusion.

    2 planned and 2 optional cohorts with 8 participants each are planned

02

Conditions studied

  • Viral Disease

Keywords

  • COVID-19
  • SARS-COV-2
03

In context

COVID-19

7,640 studies on the registry are indexed under COVID-19; 488 are open to participants now.

This study's enrollment of 26 is below the median of 100 across 4,099 interventional studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

Pfizer is the lead sponsor of 3,244 studies on the registry; 139 are open to participants now.

Of its 582 completed or terminated interventional studies of FDA-regulated products, 381 (65%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 79 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Male or female participants between the ages of 18 and 79 years.

    1. Confirmed SARS-CoV-2 infection.
    2. Hospitalized for COVID-19.
    3. Symptoms consistent with COVID-19 indicated by at least 1 of the following: fever, cough, sore throat, malaise, headache, muscle pain, shortness of breath, new loss of taste and smell, nausea, chills, fatigue, rhinorrhea, diarrhea, vomiting or radiographic infiltrates by imaging consistent with COVID-19
    4. Total body weight >=50 kg (110 lb), BMI \<40 kg/m2; BMI \<35 kg/m2 for 76- 79 years.

Exclusion criteria

  1. Evidence of critical illness, defined by at least one of the following: Respiratory failure, Multi-organ dysfunction/failure, Cardiac failure or septic shock

    1. Participants that are anticipated by the study Investigator to progress to critical disease, including mechanical ventilation, within 24 hours of enrolment
    2. Participants with pre-existing moderate to severe cardiovascular disease, uncontrolled diabetes, or severe asthma or severe COPD.

    3.Participants with a known medical history of recent acute or chronic liver disease (other than NASH), chronic or active hepatitis B or C infection, or primary biliary cirrhosis.

    4.Participants with a known medical history of ischemic heart disease, heart failure, dysrhythmia or other pre-existing cardiac condition.

    1. Participants with known HIV infection, acute or chronic history of hepatitis B or C.

    6.Participants with a known medical history of recurrent seizures. 7. Participants with history of venous thromboembolic event, including deep venous thrombosis or pulmonary embolism 8.Confirmed concurrent active systemic infection other than COVID-19. 9.Current diagnosis of cancer, unless in remission and untreated. 10.Other medical or psychiatric condition including recent or active suicidal ideation/behavior or laboratory abnormality that may increase the risk of study participation 11.Females who are pregnant or breastfeeding.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Factorial assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
26 participants (actual)

Study arms

  • Experimental
    PF-07304814

    Part 1: Cohort 1-5 Part 2: Cohort 6-9

    Drug: PF-07304814

  • Placebo comparator
    Placebo

    Part 1: Cohort 1-5 Part 2: Cohort 6-9

    Drug: Placebo

Interventions

  • DrugPF-07304814

    PF-07304814 is an anti-viral, formulated for intravenous delivery

  • DrugPlacebo

    Placebo will be formulated for intravenous delivery

06

What researchers measure

Primary outcomes

  1. Number of Participants With TEAEs, SAEs, and Severe TEAEs - Part 1: SAD

    An adverse event (AE) was any untoward medical occurrence in a participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. A serious adverse event (SAE) was defined as an AE: 1. resulting in death, 2. was life-threatening, 3. required inpatient hospitalization or prolongation of existing hospitalization, 4. resulted in persistent disability, 5. was a congenital anomaly/birth defect, or considered to be an important medical event. An adverse event was considered a Treatment-Emergent Adverse Event (TEAE) if the event started during the effective duration of treatment.

    Time frame: Day 1 to 37 days

  2. Number of Participants With TEAEs, SAEs, and Severe TEAEs - Part 2: MAD

    An adverse event (AE) was any untoward medical occurrence in a participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. A serious adverse event (SAE) was defined as an AE: 1. resulting in death, 2. was life-threatening, 3. required inpatient hospitalization or prolongation of existing hospitalization, 4. resulted in persistent disability, 5. was a congenital anomaly/birth defect, or considered to be an important medical event. An adverse event was considered a treatment-emergent adverse event (TEAE) if the event started during the effective duration of treatment.

    Time frame: Day 1 to 41 days

  3. Number of Participants With Discontinuations From Study/Study Drug or Dose Reduction Due to TEAEs - Part 1: SAD

    An AE was any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE was considered a TEAE if the event started during the effective duration of treatment.

    Time frame: Day 1 up to 37 days

  4. Number of Participants With Discontinuations From Study/Study Drug or Dose Reduction Due to TEAEs - Part 2: MAD

    An adverse event (AE) was any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE was considered a Treatment-Emergent Adverse Event (TEAE) if the event started during the effective duration of treatment.

    Time frame: Day 1 to 41 days

  5. Number of Participants With Laboratory Abnormality Without Regard to Baseline Abnormality - Part 1: SAD

    Laboratory abnormalities reported in at least 1 participant are presented in this OM, including: Hematology - lymphocytes, basophiles; Clinical Chemistry - aspartate aminotransferase, alanine aminotransferase, calcium, bicarbonate, glucose, glucose -FASTING; Urinalysis - urine glucose, urine hemoglobin, urobilinogen and urine erythrocytes (per high power field). Baseline was the last pre-dose measurement. LLN = lower limit of normal, ULN = upper limit of normal.

    Time frame: Day 1 up to 6 days

  6. Number of Participants With Laboratory Abnormality Without Regard to Baseline Abnormality - Part 2: MAD

    Laboratory abnormalities reported in at least 1 participant are presented in this OM, including: Hematology - lymphocytes hemoglobin, hematocrit, erythrocytes, ery. mean corpuscular volume, ery. mean corpuscular, hemoglobin; Clinical Chemistry - alanine aminotransferase, protein, albumin, urea nitrogen, creatinine, HDL cholesterol, triglycerides, calcium, phosphate, bicarbonate, glucose; Urinalysis - urine glucose, ketones, urine hemoglobin, urobilinogen, nitrite, leukocyte esterase, urine erythrocytes (per high power field), urine leukocytes (Scalar). Baseline was the last pre-dose measurement. LLN = lower limit of normal, ULN = upper limit of normal

    Time frame: Day 1 up to 41 days

  7. Summary of Baseline and Change From Baseline in Systolic and Diastolic Blood Pressure at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD

    Absolute baseline values and changes from baseline in supine systolic and diastolic blood pressure were summarized by treatment and time post-dose. Blood pressure was assessed in the supine position after at least 5 minutes of rest in a quiet setting without distractions. Baseline was defined as the last pre-dose measurement.

    Time frame: Baseline (pre-dose Day 1), Day 1-30 minutes, 2 hours, 6 hour, and 12 hours; 24 hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2).

  8. Summary of Baseline and Change From Baseline in Systolic and Diastolic Blood Pressure at Day2,3,4,5, and 6 (120 Hours), Day7 (Follow-up 1), Day10 (Follow-up 2), Day14 (Follow-up 3), Between Day34-41 (Follow-up 4), and/or Early Termination - Part 2: MAD

    Absolute baseline values and changes from baseline in supine systolic and diastolic blood pressure were summarized by treatment and time post-dose. Blood pressure was assessed in the supine position after at least 5 minutes of rest in a quiet setting without distractions. Baseline was defined as the last pre-dose measurement.

    Time frame: Baseline (pre-dose Day 1), Day 2, 3, 4, 5; 120 hours (End of Treatment), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (between Day 34-41) and/or early termination (ET) .

  9. Summary of Baseline and Change From Baseline in Pulse Rate at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD

    Absolute baseline values and changes from baseline in pulse rate were summarized by treatment and time post-dose. Baseline was defined as the last pre-dose measurement.

    Time frame: Baseline (pre-dose Day 1), 30 minutes, 2 hours, 6 hour, and 12 hours (post-dose Day 1); 24 hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2).

  10. Summary of Baseline and Change From Baseline in Pulse Rate at Day 2, 3, 4, 5, and 6 (120 Hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Between Day 34-41 (Follow-up 4), and/or Early Termination - Part 2: MAD

    Absolute baseline values and changes from baseline in pulse rate were summarized by treatment and time post-dose. Baseline was defined as the last pre-dose measurement.

    Time frame: Baseline (pre-dose Day 1); Day 2, 3, 4, 5; 120 hours (End of Treatment), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (between Day 34-41) and/or early termination (ET).

  11. Summary of Baseline and Change From Baseline in Temperature at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD

    Absolute baseline values and changes from baseline in temperature were summarized by treatment and time post-dose. Baseline was defined as the last pre-dose measurement.

    Time frame: Baseline (pre-dose Day 1); 30 minutes, 2 hours, 6 hour, and 12 hours (post-dose Day1); 24 hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2).

  12. Summary of Baseline and Change From Baseline in Temperature at Day 2, 3, 4, 5, and 6 (120 Hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Between Day 34-41 (Follow-up 4), and/or Early Termination - Part 2: MAD

    Absolute baseline values and changes from baseline in temperature were summarized by treatment and time post-dose. Baseline was defined as the last pre-dose measurement.

    Time frame: Baseline (pre-dose Day 1); Day 2, 3, 4, 5; 120 hours (End of Treatment), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (between Day 34-41) and/or early termination (ET).

  13. Summary of Baseline and Change From Baseline in Respiratory Rate at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD

    Absolute baseline values and changes from baseline in respiratory rate were summarized by treatment and time post-dose. Baseline was defined as the last pre-dose measurement.

    Time frame: Baseline (pre-dose Day 1); 30 minutes, 2 hours, 6 hour, and 12 hours (post-dose Day1); 24 hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2).

  14. Summary of Baseline and Change From Baseline in Respiratory Rate at Day 2, 3, 4, 5, and 6 (120 Hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Between Day 34-41 (Follow-up 4), and/or Early Termination - Part 2: MAD

    Absolute baseline values and changes from baseline in respiratory rate were summarized by treatment and time post-dose. Baseline was defined as the last pre-dose measurement.

    Time frame: Baseline (pre-dose Day 1); Day 2, 3, 4, 5; 120 hours (End of Treatment), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (between Day 34-41) and/or early termination (ET).

  15. Summary of Baseline and Change From Baseline in Pulse Oximetry/SpO2 at 24 Hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD

    Percent SpO2 values at baseline and changes from baseline were summarized for participants in 3 categories: (1) participants who received supplemental oxygen throughout, (2) participants who received supplemental oxygen at some point during the study, and (3) participants who never received supplemental oxygen. Baseline of pulse oximetry/SpO2 was defined as the last pre-dose measurement. SpO2 = arterial oxygen saturation.

    Time frame: Baseline (pre-dose Day 1); Day1-24 hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2)

  16. Summary of Baseline and Change From Baseline in Pulse Oximetry/SpO2 at Day 2, 3, 4, 5; 6 (120hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (Between Day 34-41), and/or Early Termination-Part 2: MAD

    Percent SpO2 values at baseline and changes from baseline were summarized for participants in 3 categories: (1) participants who received supplemental oxygen throughout, (2) participants who received supplemental oxygen at some point during the study, and (3) participants who never received supplemental oxygen. Baseline of pulse oximetry/SpO2 was defined as the last pre-dose measurement. SpO2 = arterial oxygen saturation.

    Time frame: Baseline (pre-dose Day 1); Day 2, 3, 4, 5; 120 hours (End of Treatment), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (between Day 34-41), and/or early termination (ET).

  17. Summary of Baseline and Change From Baseline in ECG Mean Heart Rate at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD

    The average of the triplicate readings collected at each assessment time was calculated for each ECG parameter. Baseline was defined as the average (if possible) of the triplicate pre-dose recordings on Day 1. Only centrally read ECG data was used.

    Time frame: Baseline (pre-dose Day 1); 30 minutes, 2 hours, 6 hour, and 12 hours (post-dose Day1); 24 hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2)

  18. Summary of Baseline and Change From Baseline in ECG Mean Heart Rate at Day 2, 3, 5, 6 (120 Hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (Between Day 34-41) and/or Early Termination- Part 2: MAD

    The average of the triplicate readings collected at each assessment time was calculated for each ECG parameter. Baseline was defined as the average (if possible) of the triplicate pre-dose recordings on Day 1. Only centrally read ECG data was used.

    Time frame: Baseline (pre-dose Day 1); Day 2, 3, 5; 120 hours (End of Treatment), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (between Day 34-41), and/or early termination(ET)

  19. Summary of Baseline and Change From Baseline in PR, QRS, QT and QTcF Intervals at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD

    The average of the triplicate readings collected at each assessment time was calculated for each ECG parameter. Baseline was defined as the average (if possible) of the triplicate pre-dose recordings on Day 1. Only centrally read ECG data was used.

    Time frame: Baseline (pre-dose Day 1); 30 minutes, 2 hours, 6 hour, and 12 hours (post-dose Day1); 24 hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2)

  20. Summary of Baseline and Change From Baseline in PR, QRS, QT and QTcF Intervals at Day 2, 3, 5, 6 (120 Hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (Between Day 34-41) and/or Early Termination- Part 2: MAD

    The average of the triplicate readings collected at each assessment time was calculated for each ECG parameter. Baseline was defined as the average (if possible) of the triplicate pre-dose recordings on Day 1. Only centrally read ECG data was used.

    Time frame: Baseline (pre-dose Day 1); Day 2, 3, 5; 120 hours (End of Treatment), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (between Day 34-41), and/or early termination(ET)

Secondary outcomes

  1. PF-07304814 (Prodrug) and PF-00835231 (Active Moiety) Plasma PK Parameters: Concentration at 24 Hours (End of Infusion) - Part 1: SAD

    C24 was defined as concentration at 24 hours. 24-hour PK draw was approximately 4 hours post end of infusion which corresponded to 28 hours.

    Time frame: Pre-dose and 6 hours post-dose on Day 1; 24 hours; 48 hours; and/or early termination.

  2. PF-07304814 (Prodrug) and PF-00835231 (Active Moiety) Plasma PK Parameter: Concentration at 120 Hours (End of Infusion) - Part 2: MAD

    C120 was defined as concentration at 120 hours. Blood sample collection at approximately at 2 and 6 hours post the end of the infusion, which correspond to approximately 122 hours and 126 hours post the start of infusion.

    Time frame: Pre-dose on Day1; Day 2, 3, 5 and 6 (end of treatment day), 7 (Follow-up 1), and/or early termination.

  3. PF-07304814 (Prodrug) and PF-00835231 (Active Moiety) Plasma PK Parameters: Maximum Observed Concentration (Cmax) - Part 2: MAD

    Cmax was defined as maximum observed concentration. Blood sample collection at approximately 2 and 6 hours post the end of the infusion, which correspond to approximately 122 hours and 126 hours post the start of infusion.

    Time frame: Pre-dose on Day1; Day 2, 3, 5 and 6 (end of treatment day), 7 (Follow-up 1), and/or early termination.

  4. PF-07304814 (Prodrug) and PF-00835231 (Active Moiety) Plasma PK Parameters: t½ - Part 2: MAD

    t½ was defined as terminal half-life. Blood sample collection at approximately within 30 minutes before end of infusion (\~120 hours), and at 2 and 6 hours post the end of the infusion, which correspond to approximately 122h and 126h post the start of infusion.

    Time frame: Pre-dose on Day1; Day 2, 3, 5 and 6 (end of treatment day), 7 (Follow-up 1), and/or early termination.

  5. PF-07304814 (Prodrug) and PF-00835231 (Active Moiety) Plasma PK Parameters: Concentration at Steady State (Css) - Part 2: MAD

    Css was defined as concentration at steady state. Blood sample collection at approximately 2 and 6 hours post the end of the infusion, which correspond to approximately 122 hours and 126 hours post the start of infusion.

    Time frame: Pre-dose on Day1; Day 2, 3, 5 and 6 (end of treatment day), 7 (Follow-up 1), and/or early termination.

07

Results

Posted May 3, 2023

Participant flow

Treatment
Participant flow — Treatment
MilestonePart 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous InfusionPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous Infusion
Started2222674
Completed2222673
Not completed0000001
Withdrew: Adverse event0000001
Follow-Up
Participant flow — Follow-Up
MilestonePart 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous InfusionPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous Infusion
Started2222674
Completed2221673
Not completed0001001
Withdrew: Death0000001
Withdrew: Lost to follow-up0001000

Outcome measures

PrimaryNumber of Participants With TEAEs, SAEs, and Severe TEAEs - Part 1: SAD

An adverse event (AE) was any untoward medical occurrence in a participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. A serious adverse event (SAE) was defined as an AE: 1. resulting in death, 2. was life-threatening, 3. required inpatient hospitalization or prolongation of existing hospitalization, 4. resulted in persistent disability, 5. was a congenital anomaly/birth defect, or considered to be an important medical event. An adverse event was considered a Treatment-Emergent Adverse Event (TEAE) if the event started during the effective duration of treatment.

Time frame:
Day 1 to 37 days
Reported as:
Count of participants · Participants
Number of Participants With TEAEs, SAEs, and Severe TEAEs - Part 1: SAD
ParticipantsPart 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous Infusion
All-causality TEAEs1122
Treatment-related TEAEs0011
All-causality SAEs1011
Treatment-related SAEs0000
All-causality severe AEs1111
Treatment-related severe AEs0000
PrimaryNumber of Participants With TEAEs, SAEs, and Severe TEAEs - Part 2: MAD

An adverse event (AE) was any untoward medical occurrence in a participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. A serious adverse event (SAE) was defined as an AE: 1. resulting in death, 2. was life-threatening, 3. required inpatient hospitalization or prolongation of existing hospitalization, 4. resulted in persistent disability, 5. was a congenital anomaly/birth defect, or considered to be an important medical event. An adverse event was considered a treatment-emergent adverse event (TEAE) if the event started during the effective duration of treatment.

Time frame:
Day 1 to 41 days
Reported as:
Count of participants · Participants
Number of Participants With TEAEs, SAEs, and Severe TEAEs - Part 2: MAD
ParticipantsPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous Infusion
All-causality TEAEs243
Treatment-related TEAEs001
All-causality SAEs121
Treatment-related SAEs000
All-causality severe AEs021
Treatment-related severe AEs000
PrimaryNumber of Participants With Discontinuations From Study/Study Drug or Dose Reduction Due to TEAEs - Part 1: SAD

An AE was any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE was considered a TEAE if the event started during the effective duration of treatment.

Time frame:
Day 1 up to 37 days
Reported as:
Count of participants · Participants
Number of Participants With Discontinuations From Study/Study Drug or Dose Reduction Due to TEAEs - Part 1: SAD
ParticipantsPart 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous Infusion
Discontinued from study due to adverse events0000
Discontinuation from study drug due to AE and continued study0000
Dose reduced or temporary discontinuation due to adverse events0000
PrimaryNumber of Participants With Discontinuations From Study/Study Drug or Dose Reduction Due to TEAEs - Part 2: MAD

An adverse event (AE) was any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE was considered a Treatment-Emergent Adverse Event (TEAE) if the event started during the effective duration of treatment.

Time frame:
Day 1 to 41 days
Reported as:
Count of participants · Participants
Number of Participants With Discontinuations From Study/Study Drug or Dose Reduction Due to TEAEs - Part 2: MAD
ParticipantsPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous Infusion
Discontinued from study due to adverse events001
Discontinuation from study drug due to AE and continued study000
Dose reduced or temporary discontinuation due to adverse events100
PrimaryNumber of Participants With Laboratory Abnormality Without Regard to Baseline Abnormality - Part 1: SAD

Laboratory abnormalities reported in at least 1 participant are presented in this OM, including: Hematology - lymphocytes, basophiles; Clinical Chemistry - aspartate aminotransferase, alanine aminotransferase, calcium, bicarbonate, glucose, glucose -FASTING; Urinalysis - urine glucose, urine hemoglobin, urobilinogen and urine erythrocytes (per high power field). Baseline was the last pre-dose measurement. LLN = lower limit of normal, ULN = upper limit of normal.

Time frame:
Day 1 up to 6 days
Reported as:
Count of participants · Participants
Number of Participants With Laboratory Abnormality Without Regard to Baseline Abnormality - Part 1: SAD
ParticipantsPart 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous Infusion
Lymphocytes (10^3/mm3) < 0.8*LLN1201
Basophils (10^3/mm3) > 1.2*ULN0010
Aspartate Aminotransferase (U/L) > 3.0*ULN0101
Alanine Aminotransferase (U/L) > 3.0*ULN0110
Calcium (mg/dL) < 0.9*LLN0010
Bicarbonate (mEq/L) < 0.9*LLN0111
Glucose (mg/dL) > 1.5*ULN0102
Glucose - FASTING (mg/dL) >1.5*ULN1020
URINE Glucose ≥ 11000
URINE Hemoglobin ≥ 10001
Urobilinogen ≥ 10001
URINE Erythrocytes (/HPF) ≥ 200001
PrimaryNumber of Participants With Laboratory Abnormality Without Regard to Baseline Abnormality - Part 2: MAD

Laboratory abnormalities reported in at least 1 participant are presented in this OM, including: Hematology - lymphocytes hemoglobin, hematocrit, erythrocytes, ery. mean corpuscular volume, ery. mean corpuscular, hemoglobin; Clinical Chemistry - alanine aminotransferase, protein, albumin, urea nitrogen, creatinine, HDL cholesterol, triglycerides, calcium, phosphate, bicarbonate, glucose; Urinalysis - urine glucose, ketones, urine hemoglobin, urobilinogen, nitrite, leukocyte esterase, urine erythrocytes (per high power field), urine leukocytes (Scalar). Baseline was the last pre-dose measurement. LLN = lower limit of normal, ULN = upper limit of normal

Time frame:
Day 1 up to 41 days
Reported as:
Count of participants · Participants
Number of Participants With Laboratory Abnormality Without Regard to Baseline Abnormality - Part 2: MAD
ParticipantsPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous Infusion
Hemoglobin (g/dL)<0.8*LLN021
Hematocrit (%)<0.8x LLN020
Erythrocytes (10^6/mm3)<0.8x LLN010
Ery. mean corpuscular volume (um^3)<0.9*LLN011
Ery. mean corpuscular hemoglobin (pg/cell)<0.9*LLN011
Lymphocytes (10^3/mm3)<0.8x LLN033
Alanine aminotransferase (U/L)>3.0*ULN011
Protein (g/dL)<0.8x LLN011
Albumin (g/dL) <0.8x LLN101
Urea nitrogen (mg/dL)>1.3x ULN001
Creatinine (mg/dL)>1.3x ULN001
HDL cholesterol (mg/dL)<0.8x LLN231
Triglycerides (mg/dL)>1.3x ULN110
Calcium (mg/dL)<0.9x LLN110
Phosphate (mg/dL)<0.8x LLN010
Bicarbonate (mEq/L)<0.9x LLN243
Glucose (mg/dL)>1.5x ULN362
URINE glucose≥1110
Ketones≥1010
Urine hemoglobin ≥ 1121
Urobilinogen≥1121
Nitrite≥1100
Leukocyte esterase ≥ 1120
Urine erythrocytes (/HPF)≥20120
Urine leukocytes (Scalar)≥20010
PrimarySummary of Baseline and Change From Baseline in Systolic and Diastolic Blood Pressure at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD

Absolute baseline values and changes from baseline in supine systolic and diastolic blood pressure were summarized by treatment and time post-dose. Blood pressure was assessed in the supine position after at least 5 minutes of rest in a quiet setting without distractions. Baseline was defined as the last pre-dose measurement.

Time frame:
Baseline (pre-dose Day 1), Day 1-30 minutes, 2 hours, 6 hour, and 12 hours; 24 hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2).
Reported as:
Mean · mmHg
Summary of Baseline and Change From Baseline in Systolic and Diastolic Blood Pressure at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD
mmHgPart 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous Infusion
Systolic blood pressure: Baseline116.0 ± 4.24134.5 ± 13.44108.0 ± 14.14127.5 ± 30.41
Systolic blood pressure: Change from Baseline: Day 1- 30 minutes6.0 ± 18.38-12.5 ± 12.02-4.0 ± 12.739.5 ± 17.68
Systolic blood pressure: Change from Baseline: Day 1 - 2 hours12.0 ± 22.63-20.0 ± 11.314.0 ± 2.833.5 ± 20.51
Systolic blood pressure: Change from Baseline: Day 1 - 6 hours-1.5 ± 14.85-20.5 ± 13.440.0 ± 7.0716.5 ± 24.75
Systolic blood pressure: Change from Baseline: Day 1 - 12 hours-8.0 ± 18.38-6.5 ± 26.16-2.5 ± 4.9510.0 ± 5.66
Systolic blood pressure: Change from Baseline: End of Treatment-5.0 ± 16.97-17.0 ± NA0.0 ± 8.49-1.0 ± 5.66
Systolic blood pressure: Change from Baseline: Follow Up 18.0 ± 11.31-16.5 ± 21.92-3.0 ± 9.9013.5 ± 3.54
Systolic blood pressure: Change from Baseline: Follow Up 217.0 ± NA-20.0 ± NA-6.0 ± NA-14.5 ± 27.58
Diastolic blood pressure: Baseline64.0 ± 9.9059.0 ± 21.2168.5 ± 13.4476.5 ± 9.19
Diastolic blood pressure: Change from Baseline: Day 1 - 30 minutes5.0 ± 5.6616.0 ± 14.14-5.0 ± 8.496.0 ± 9.90
Diastolic blood pressure: Change from Baseline: Day 1 - 2 hours9.5 ± 12.0211.5 ± 7.78-2.0 ± 4.243.0 ± 11.31
Diastolic blood pressure: Change from Baseline: Day 1 - 6 hours-1.5 ± 6.368.5 ± 17.68-8.0 ± 7.076.5 ± 7.78
Diastolic blood pressure: Change from Baseline: Day 1 - 12 hours9.0 ± 9.9013.0 ± 16.97-8.5 ± 2.12-1.0 ± 0.00
Diastolic blood pressure: Change from Baseline: End of Treatment-1.0 ± 0.0023.0 ± NA-7.5 ± 6.36-4.5 ± 0.71
Diastolic blood pressure: Change from Baseline: Follow Up 117.0 ± 2.836.0 ± 2.83-6.0 ± 1.418.5 ± 2.12
Diastolic blood pressure: Change from Baseline: Follow Up 212.0 ± NA17.0 ± NA-11.0 ± NA-2.0 ± 12.73
PrimarySummary of Baseline and Change From Baseline in Systolic and Diastolic Blood Pressure at Day2,3,4,5, and 6 (120 Hours), Day7 (Follow-up 1), Day10 (Follow-up 2), Day14 (Follow-up 3), Between Day34-41 (Follow-up 4), and/or Early Termination - Part 2: MAD

Absolute baseline values and changes from baseline in supine systolic and diastolic blood pressure were summarized by treatment and time post-dose. Blood pressure was assessed in the supine position after at least 5 minutes of rest in a quiet setting without distractions. Baseline was defined as the last pre-dose measurement.

Time frame:
Baseline (pre-dose Day 1), Day 2, 3, 4, 5; 120 hours (End of Treatment), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (between Day 34-41) and/or early termination (ET) .
Reported as:
Mean · mmHg
Summary of Baseline and Change From Baseline in Systolic and Diastolic Blood Pressure at Day2,3,4,5, and 6 (120 Hours), Day7 (Follow-up 1), Day10 (Follow-up 2), Day14 (Follow-up 3), Between Day34-41 (Follow-up 4), and/or Early Termination - Part 2: MAD
mmHgPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous Infusion
Systolic blood pressure: Baseline105.3 ± 18.08127.6 ± 13.64116.5 ± 14.29
Systolic blood pressure: Change from Baseline: Day 24.8 ± 10.341.4 ± 14.20-4.3 ± 8.42
Systolic blood pressure: Change from Baseline: Day 315.5 ± 14.15-4.9 ± 16.9210.8 ± 24.70
Systolic blood pressure: Change from Baseline: Day 4-1.2 ± 12.54-13.1 ± 13.59-18.0 ± 6.00
Systolic blood pressure: Change from Baseline: Day 53.2 ± 10.28-4.6 ± 14.14-12.3 ± 6.66
Systolic blood pressure: Change from Baseline: End of Treatment3.7 ± 14.85-11.6 ± 12.71-11.0 ± 6.08
Systolic blood pressure: Change from Baseline: Early Termination——11.0 ± NA
Systolic blood pressure: Change from Baseline: Follow Up 15.0 ± 14.14-7.7 ± 10.834.5 ± 17.29
Systolic blood pressure: Change from Baseline: Follow Up 221.5 ± 17.621.0 ± NA24.0 ± 48.08
Systolic blood pressure: Change from Baseline: Follow Up 319.0 ± 14.07-1.0 ± 2.8311.7 ± 17.01
Systolic blood pressure: Change from Baseline: Follow Up 415.0 ± 2.83-2.7 ± 6.6615.0 ± NA
Diastolic blood pressure: Baseline63.8 ± 11.3978.7 ± 7.8772.0 ± 12.52
Diastolic blood pressure: Change from Baseline: Day 24.7 ± 10.52-2.4 ± 7.481.0 ± 9.83
Diastolic blood pressure: Change from Baseline: Day 37.8 ± 10.96-9.4 ± 13.152.3 ± 9.54
Diastolic blood pressure: Change from Baseline: Day 42.7 ± 8.57-7.4 ± 9.32-11.7 ± 4.93
Diastolic blood pressure: Change from Baseline: Day 52.7 ± 10.05-9.6 ± 11.622.0 ± 11.27
Diastolic blood pressure: Change from Baseline: End of Treatment2.5 ± 8.96-7.9 ± 17.00-13.0 ± 2.00
Diastolic blood pressure: Change from Baseline: Early Termination——11.0 ± NA
Diastolic blood pressure: Change from Baseline: Follow Up 14.8 ± 11.34-6.7 ± 13.86-5.8 ± 12.04
Diastolic blood pressure: Change from Baseline: Follow Up 215.5 ± 13.48-34.0 ± NA-3.0 ± 1.41
Diastolic blood pressure: Change from Baseline: Follow Up 313.0 ± 13.64-14.5 ± 13.445.0 ± 21.63
Diastolic blood pressure: Change from Baseline: Follow Up 411.0 ± 14.14-4.3 ± 12.6612.0 ± NA
PrimarySummary of Baseline and Change From Baseline in Pulse Rate at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD

Absolute baseline values and changes from baseline in pulse rate were summarized by treatment and time post-dose. Baseline was defined as the last pre-dose measurement.

Time frame:
Baseline (pre-dose Day 1), 30 minutes, 2 hours, 6 hour, and 12 hours (post-dose Day 1); 24 hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2).
Reported as:
Mean · bpm
Summary of Baseline and Change From Baseline in Pulse Rate at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD
bpmPart 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous Infusion
Pulse rate: Baseline83.0 ± 2.8374.5 ± 4.9566.0 ± 16.9775.5 ± 6.36
Pulse rate: Change from Baseline: Day 1 - 30 minutes1.0 ± NA10.0 ± NA-1.0 ± NA6.5 ± 0.71
Pulse rate: Change from Baseline: Day 1 - 2 hours-2.0 ± NA2.5 ± 3.54-5.0 ± NA16.0 ± 24.04
Pulse rate: Change from Baseline: Day 1 - 6 hours-6.0 ± NA-8.0 ± NA-7.0 ± NA—
Pulse rate: Change from Baseline: Day 1 - 12 hours-12.0 ± NA0.0 ± 0.00-11.0 ± 1.416.0 ± 7.07
Pulse rate: Change from Baseline: End of Treatment-5.5 ± 0.71-4.5 ± 17.682.5 ± 10.61-17.0 ± NA
Pulse rate: Change from Baseline: Follow Up 1-2.5 ± 7.78-7.0 ± 1.41-1.0 ± 1.4115.0 ± NA
Pulse rate: Change from Baseline: Follow Up 24.0 ± NA3.0 ± NA5.0 ± NA5.0 ± 9.90
PrimarySummary of Baseline and Change From Baseline in Pulse Rate at Day 2, 3, 4, 5, and 6 (120 Hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Between Day 34-41 (Follow-up 4), and/or Early Termination - Part 2: MAD

Absolute baseline values and changes from baseline in pulse rate were summarized by treatment and time post-dose. Baseline was defined as the last pre-dose measurement.

Time frame:
Baseline (pre-dose Day 1); Day 2, 3, 4, 5; 120 hours (End of Treatment), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (between Day 34-41) and/or early termination (ET).
Reported as:
Mean · bpm
Summary of Baseline and Change From Baseline in Pulse Rate at Day 2, 3, 4, 5, and 6 (120 Hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Between Day 34-41 (Follow-up 4), and/or Early Termination - Part 2: MAD
bpmPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous Infusion
Pulse rate: Baseline74.2 ± 10.5980.9 ± 13.1590.3 ± 30.38
Pulse rate: Change from Baseline: Day 2-4.0 ± 16.82-5.4 ± 10.64-1.5 ± 4.12
Pulse rate: Change from Baseline: Day 33.5 ± 11.52-6.6 ± 20.90-3.0 ± 8.60
Pulse rate: Change from Baseline: Day 4-6.0 ± 17.47-10.6 ± 10.39-18.3 ± 24.79
Pulse rate: Change from Baseline: Day 5-2.3 ± 11.11-8.4 ± 12.61-12.0 ± 22.07
Pulse rate: Change from Baseline: End of Treatment-7.8 ± 20.65-9.1 ± 16.34-19.7 ± 45.39
Pulse rate: Change from Baseline: Early Termination——-3.0 ± NA
Pulse rate: Change from Baseline: Follow Up 1-1.3 ± 9.93-9.7 ± 12.58-11.3 ± 32.46
Pulse rate: Change from Baseline: Follow Up 213.0 ± 9.83-38.0 ± NA-25.5 ± 24.75
Pulse rate: Change from Baseline: Follow Up 38.8 ± 10.246.0 ± 29.70-7.7 ± 28.36
Pulse rate: Change from Baseline: Follow Up 412.0 ± 12.738.3 ± 24.9512.0 ± NA
PrimarySummary of Baseline and Change From Baseline in Temperature at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD

Absolute baseline values and changes from baseline in temperature were summarized by treatment and time post-dose. Baseline was defined as the last pre-dose measurement.

Time frame:
Baseline (pre-dose Day 1); 30 minutes, 2 hours, 6 hour, and 12 hours (post-dose Day1); 24 hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2).
Reported as:
Mean · Degree Celsius
Summary of Baseline and Change From Baseline in Temperature at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD
Degree CelsiusPart 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous Infusion
Temperature: Baseline37.6 ± 0.1437.0 ± 0.2836.5 ± 0.1437.1 ± 0.99
Temperature: Change from Baseline: Day 1 - 30 minutes0.2 ± 0.21-0.2 ± 0.210.1 ± 0.070.2 ± 0.00
Temperature: Change from Baseline: Day 1 - 2 hours0.1 ± 0.49-0.1 ± 0.070.1 ± 0.14-0.1 ± 0.57
Temperature: Change from Baseline: Day 1 - 6 hours-0.4 ± 0.280.0 ± 0.140.2 ± 0.070.1 ± 0.71
Temperature: Change from Baseline: Day 1 - 12 hours-0.1 ± 0.99-0.5 ± 0.140.1 ± 0.000.7 ± 0.42
Temperature: Change from Baseline: End of Treatment-0.7 ± 0.64-0.1 ± NA0.3 ± 0.350.3 ± 0.64
Temperature: Change from Baseline: Follow Up 1-0.9 ± 0.78-0.7 ± 0.070.3 ± 0.07-0.3 ± 0.85
Temperature: Change from Baseline: Follow Up 2-0.9 ± NA2.0 ± NA0.3 ± NA0.1 ± 0.35
PrimarySummary of Baseline and Change From Baseline in Temperature at Day 2, 3, 4, 5, and 6 (120 Hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Between Day 34-41 (Follow-up 4), and/or Early Termination - Part 2: MAD

Absolute baseline values and changes from baseline in temperature were summarized by treatment and time post-dose. Baseline was defined as the last pre-dose measurement.

Time frame:
Baseline (pre-dose Day 1); Day 2, 3, 4, 5; 120 hours (End of Treatment), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (between Day 34-41) and/or early termination (ET).
Reported as:
Mean · Degree Celsius
Summary of Baseline and Change From Baseline in Temperature at Day 2, 3, 4, 5, and 6 (120 Hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Between Day 34-41 (Follow-up 4), and/or Early Termination - Part 2: MAD
Degree CelsiusPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous Infusion
Temperature: Baseline36.7 ± 0.7936.7 ± 0.3536.3 ± 0.73
Temperature: Change from Baseline: Day 2-0.4 ± 0.88-0.3 ± 0.500.2 ± 0.29
Temperature: Change from Baseline: Day 3-0.2 ± 0.84-0.3 ± 0.430.1 ± 0.43
Temperature: Change from Baseline: Day 4-0.3 ± 0.91-0.4 ± 0.450.0 ± 0.40
Temperature: Change from Baseline: Day 5-0.4 ± 0.97-0.6 ± 0.600.4 ± 0.55
Temperature: Change from Baseline: End of Treatment-0.4 ± 0.91-0.6 ± 0.590.5 ± 0.45
Temperature: Change from Baseline: Early Termination——-0.3 ± NA
Temperature: Change from Baseline: Follow Up 1-0.4 ± 0.91-0.6 ± 0.460.7 ± 0.17
Temperature: Change from Baseline: Follow Up 2-0.1 ± 1.21-0.1 ± NA0.7 ± 0.57
Temperature: Change from Baseline: Follow Up 3-0.4 ± 1.05-0.1 ± 0.210.7 ± 1.08
Temperature: Change from Baseline: Follow Up 4-1.0 ± 0.640.2 ± 0.67-0.2 ± NA
PrimarySummary of Baseline and Change From Baseline in Respiratory Rate at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD

Absolute baseline values and changes from baseline in respiratory rate were summarized by treatment and time post-dose. Baseline was defined as the last pre-dose measurement.

Time frame:
Baseline (pre-dose Day 1); 30 minutes, 2 hours, 6 hour, and 12 hours (post-dose Day1); 24 hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2).
Reported as:
Mean · breaths per minute
Summary of Baseline and Change From Baseline in Respiratory Rate at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD
breaths per minutePart 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous Infusion
Respiratory rate: Baseline21.0 ± 1.4120.5 ± 3.5423.0 ± 7.0720.0 ± 2.83
Respiratory rate: Change from Baseline: Day 1 - 30 minutes0.0 ± NA-1.0 ± 4.24-1.0 ± 1.41-0.5 ± 0.71
Respiratory rate: Change from Baseline: Day 1 - 2 hours0.0 ± NA-1.0 ± 4.24-1.0 ± 1.416.5 ± 7.78
Respiratory rate: Change from Baseline: Day 1 - 6 hours-2.0 ± NA-0.5 ± 0.71-0.5 ± 0.71—
Respiratory rate: Change from Baseline: Day 1 - 12 hours-1.0 ± NA-5.5 ± 10.61-2.5 ± 4.950.0 ± 0.00
Respiratory rate: Change from Baseline: End of Treatment-2.5 ± 0.71-0.5 ± 2.122.5 ± 3.547.0 ± NA
Respiratory rate: Change from Baseline: Follow Up 1-4.0 ± 2.830.5 ± 7.78-3.5 ± 4.95-4.0 ± NA
Respiratory rate: Change from Baseline: Follow Up 2-8.0 ± NA4.0 ± NA-8.0 ± NA-2.0 ± 5.66
PrimarySummary of Baseline and Change From Baseline in Respiratory Rate at Day 2, 3, 4, 5, and 6 (120 Hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Between Day 34-41 (Follow-up 4), and/or Early Termination - Part 2: MAD

Absolute baseline values and changes from baseline in respiratory rate were summarized by treatment and time post-dose. Baseline was defined as the last pre-dose measurement.

Time frame:
Baseline (pre-dose Day 1); Day 2, 3, 4, 5; 120 hours (End of Treatment), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (between Day 34-41) and/or early termination (ET).
Reported as:
Mean · Breaths per minute
Summary of Baseline and Change From Baseline in Respiratory Rate at Day 2, 3, 4, 5, and 6 (120 Hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Between Day 34-41 (Follow-up 4), and/or Early Termination - Part 2: MAD
Breaths per minutePart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous Infusion
Respiratory rate: Baseline23.5 ± 3.4522.4 ± 5.5921.0 ± 4.69
Respiratory rate: Change from Baseline: Day 2-3.0 ± 7.10-1.7 ± 7.45-0.5 ± 5.07
Respiratory rate: Change from Baseline: Day 31.0 ± 8.99-3.1 ± 4.261.0 ± 4.97
Respiratory rate: Change from Baseline: Day 4-1.8 ± 3.76-4.0 ± 5.694.0 ± 5.00
Respiratory rate: Change from Baseline: Day 5-2.2 ± 5.78-2.9 ± 2.04-0.7 ± 2.08
Respiratory rate: Change from Baseline: End of Treatment-3.3 ± 4.27-2.3 ± 5.62-2.3 ± 3.51
Respiratory rate: Change from Baseline: Early Termination——-4.0 ± NA
Respiratory rate: Change from Baseline: Follow Up 1-3.5 ± 4.55-3.9 ± 4.88-3.0 ± 1.00
Respiratory rate: Change from Baseline: Follow Up 2-5.8 ± 6.50-2.0 ± NA-1.5 ± 2.12
Respiratory rate: Change from Baseline: Follow Up 3-6.8 ± 5.74-10.0 ± NA1.3 ± 10.12
Respiratory rate: Change from Baseline: Follow Up 4-6.0 ± 5.661.3 ± 4.73-3.0 ± NA
PrimarySummary of Baseline and Change From Baseline in Pulse Oximetry/SpO2 at 24 Hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD

Percent SpO2 values at baseline and changes from baseline were summarized for participants in 3 categories: (1) participants who received supplemental oxygen throughout, (2) participants who received supplemental oxygen at some point during the study, and (3) participants who never received supplemental oxygen. Baseline of pulse oximetry/SpO2 was defined as the last pre-dose measurement. SpO2 = arterial oxygen saturation.

Time frame:
Baseline (pre-dose Day 1); Day1-24 hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2)
Reported as:
Mean · percentage of SpO2
Summary of Baseline and Change From Baseline in Pulse Oximetry/SpO2 at 24 Hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD
percentage of SpO2Part 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous Infusion
Baseline: Oxygen Received Throughout92.0 ± NA90.0 ± NA98.0 ± NA94.5 ± 0.71
Baseline: Oxygen Received at Some Point During Study—91.0 ± NA95.0 ± NA—
Baseline: Oxygen Never Received93.0 ± NA———
Change from Baseline: End of Treatment: Oxygen Received Throughout:3.0 ± NA5.0 ± NA0.0 ± NA-0.5 ± 0.71
Change from Baseline: End of Treatment: Oxygen Received at Some Point During Study—5.0 ± NA-4.0 ± NA—
Change from Baseline: End of Treatment: Oxygen Never Received1.0 ± NA———
Change from Baseline: Follow Up 1: Oxygen Received Throughout3.0 ± NA1.0 ± NA0.0 ± NA0.0 ± NA
Change from Baseline: Follow Up 1: Oxygen Received at Some Point During Study—5.0 ± NA1.0 ± NA—
Change from Baseline: Follow Up 1: Oxygen Never Received1.0 ± NA———
Change from Baseline: Follow Up 2: Oxygen Received Throughout0.0 ± NA5.0 ± NA-5.0 ± NA-1.5 ± 0.71
PrimarySummary of Baseline and Change From Baseline in Pulse Oximetry/SpO2 at Day 2, 3, 4, 5; 6 (120hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (Between Day 34-41), and/or Early Termination-Part 2: MAD

Percent SpO2 values at baseline and changes from baseline were summarized for participants in 3 categories: (1) participants who received supplemental oxygen throughout, (2) participants who received supplemental oxygen at some point during the study, and (3) participants who never received supplemental oxygen. Baseline of pulse oximetry/SpO2 was defined as the last pre-dose measurement. SpO2 = arterial oxygen saturation.

Time frame:
Baseline (pre-dose Day 1); Day 2, 3, 4, 5; 120 hours (End of Treatment), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (between Day 34-41), and/or early termination (ET).
Reported as:
Mean · percentage of SpO2
Summary of Baseline and Change From Baseline in Pulse Oximetry/SpO2 at Day 2, 3, 4, 5; 6 (120hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (Between Day 34-41), and/or Early Termination-Part 2: MAD
percentage of SpO2Part 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous Infusion
Baseline: Oxygen Received Throughout93.3 ± 3.7796.3 ± 0.5860.0 ± NA
Baseline: Oxygen Received at Some Point During Study97.0 ± 0.0096.0 ± 2.6597.3 ± 0.58
Baseline: Oxygen Never Received—98.0 ± NA—
Change from Baseline: Day 2: Oxygen Received Throughout2.0 ± 3.74-3.3 ± 2.0834.0 ± NA
Change from Baseline: Day 2: Oxygen Received at Some Point During Study1.0 ± 0.00-1.0 ± 1.0-2.7 ± 2.08
Change from Baseline: Day 2: Oxygen Never Received—2.0 ± NA—
Change from Baseline: Day 3: Oxygen Received Throughout1.3 ± 3.77-2.3 ± 2.0831.0 ± NA
Change from Baseline: Day 3: Oxygen Received at Some Point During Study-2.0 ± 2.830.0 ± 1.00-1.0 ± 1.0
Change from Baseline: Day 3: Oxygen Never Received—-3.0 ± NA—
Change from Baseline: Day 4: Oxygen Received Throughout2.0 ± 2.45-0.7 ± 2.5229.0 ± NA
Change from Baseline: Day 4: Oxygen Received at Some Point During Study-1.0 ± 0.00-0.7 ± 0.58-3.5 ± 2.12
Change from Baseline: Day 4: Oxygen Never Received—-3.0 ± NA—
Change from Baseline: Day 5: Oxygen Received Throughout3.0 ± 4.08-1.3 ± 3.7925.0 ± NA
Change from Baseline: Day 5: Oxygen Received at Some Point During Study-1.5 ± 0.71-1.3 ± 2.08-5.5 ± 3.54
Change from Baseline: Day 5: Oxygen Never Received—-2.0 ± NA—
Change from Baseline: End of Treatment: Oxygen Received Throughout0.8 ± 3.86-1.0 ± 1.7334.0 ± NA
Change from Baseline: End of Treatment: Oxygen Received at Some Point During Study0.0 ± 2.830.3 ± 2.08-5.5 ± 0.71
Change from Baseline: End of Treatment: Oxygen Never Received—0.0 ± NA—
Change from Baseline: Early Termination: Oxygen Received at Some Point During Study——-1.0 ± NA
Change from Baseline: Follow Up 1: Oxygen Received Throughout2.0 ± 2.45-1.0 ± 0.0036.0 ± NA
Change from Baseline: Follow Up 1: Oxygen Received at Some Point During Study-2.5 ± 0.710.0 ± 1.73-3.0 ± 2.83
Change from Baseline: Follow Up 1: Oxygen Never Received—-1.0 ± NA—
Change from Baseline: Follow Up 2: Oxygen Received Throughout3.3 ± 4.04-2.0 ± NA31.0 ± NA
Change from Baseline: Follow Up 2: Oxygen Received at Some Point During Study-2.0 ± NA—1.0 ± NA
Change from Baseline: Follow Up 3: Oxygen Received Throughout3.7 ± 4.04-2.0 ± NA31.0 ± NA
Change from Baseline: Follow Up 3: Oxygen Received at Some Point During Study0.0 ± NA2.0 ± NA0.5 ± 0.71
Change from Baseline: Follow Up 4: Oxygen Received Throughout3.0 ± 1.41-0.5 ± 3.54—
Change from Baseline: Follow Up 4: Oxygen Received at Some Point During Study—1.0 ± NA-3.0 ± NA
PrimarySummary of Baseline and Change From Baseline in ECG Mean Heart Rate at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD

The average of the triplicate readings collected at each assessment time was calculated for each ECG parameter. Baseline was defined as the average (if possible) of the triplicate pre-dose recordings on Day 1. Only centrally read ECG data was used.

Time frame:
Baseline (pre-dose Day 1); 30 minutes, 2 hours, 6 hour, and 12 hours (post-dose Day1); 24 hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2)
Reported as:
Mean · Beats per minute
Summary of Baseline and Change From Baseline in ECG Mean Heart Rate at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD
Beats per minutePart 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous Infusion
ECG mean heart rate: Baseline87.5 ± 3.5471.5 ± 4.9566.0 ± 15.5671.0 ± 7.07
ECG mean heart rate: Change from Baseline: Day 1 - 30 minutes-3.5 ± 3.54—-5.5 ± 0.71—
ECG mean heart rate: Change from Baseline: Day 1 - 2 hours2.0 ± 8.49—-4.0 ± 2.83—
ECG mean heart rate: Change from Baseline: Day 1 - 6 hours-12.5 ± 4.952.5 ± 0.71-13.5 ± 9.197.5 ± 13.44
ECG mean heart rate: Change from Baseline: Day 1 - 12 hours-7.0 ± 11.313.0 ± 5.66-9.5 ± 3.548.5 ± 10.61
ECG mean heart rate: Change from Baseline: End of Treatment-7.0 ± 5.66-9.0 ± 7.072.5 ± 10.61-4.0 ± 2.83
ECG mean heart rate: Change from Baseline: Follow Up 1-8.0 ± 11.31-2.0 ± NA-3.5 ± 0.718.0 ± 5.66
ECG mean heart rate: Change from Baseline: Follow Up 2-14.0 ± NA1.0 ± NA1.0 ± NA-8.0 ± NA
PrimarySummary of Baseline and Change From Baseline in ECG Mean Heart Rate at Day 2, 3, 5, 6 (120 Hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (Between Day 34-41) and/or Early Termination- Part 2: MAD

The average of the triplicate readings collected at each assessment time was calculated for each ECG parameter. Baseline was defined as the average (if possible) of the triplicate pre-dose recordings on Day 1. Only centrally read ECG data was used.

Time frame:
Baseline (pre-dose Day 1); Day 2, 3, 5; 120 hours (End of Treatment), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (between Day 34-41), and/or early termination(ET)
Reported as:
Mean · Beats per minute
Summary of Baseline and Change From Baseline in ECG Mean Heart Rate at Day 2, 3, 5, 6 (120 Hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (Between Day 34-41) and/or Early Termination- Part 2: MAD
Beats per minutePart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous Infusion
ECG mean heart rate: Baseline70.2 ± 9.0280.1 ± 11.2985.0 ± 41.16
ECG mean heart rate: Change from Baseline: Day 2-4.7 ± 8.52-6.0 ± 18.90-0.7 ± 2.08
ECG mean heart rate: Change from Baseline: Day 3-8.7 ± 15.49-12.0 ± 15.01-7.5 ± 18.91
ECG mean heart rate: Change from Baseline: Day 5-6.7 ± 13.28-9.0 ± 8.04-13.7 ± 27.61
ECG mean heart rate: Change from Baseline: End of Treatment-8.7 ± 16.65-8.4 ± 13.46-15.0 ± 42.79
ECG mean heart rate: Change from Baseline: Early Termination——9.0 ± NA
ECG mean heart rate: Change from Baseline: Follow Up 12.8 ± 17.73-6.9 ± 8.6321.0 ± 10.44
ECG mean heart rate: Change from Baseline: Follow Up 27.0 ± 12.68-26.0 ± NA2.0 ± NA
ECG mean heart rate: Change from Baseline: Follow Up 38.5 ± 12.07-12.5 ± 16.266.0 ± NA
ECG mean heart rate: Change from Baseline: Follow Up 4-6.0 ± NA8.0 ± 21.3821.0 ± NA
PrimarySummary of Baseline and Change From Baseline in PR, QRS, QT and QTcF Intervals at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD

The average of the triplicate readings collected at each assessment time was calculated for each ECG parameter. Baseline was defined as the average (if possible) of the triplicate pre-dose recordings on Day 1. Only centrally read ECG data was used.

Time frame:
Baseline (pre-dose Day 1); 30 minutes, 2 hours, 6 hour, and 12 hours (post-dose Day1); 24 hours (End of Treatment), Day 3 (Follow-up 1) and Day 6 (Follow-up 2)
Reported as:
Mean · Millisecond
Summary of Baseline and Change From Baseline in PR, QRS, QT and QTcF Intervals at Day 1 (30 Minutes, 2 Hours, 6 Hour, and 12 Hours; 24 Hours [End of Treatment]), Day 3 (Follow-up 1) and Day 6 (Follow-up 2) - Part 1: SAD
MillisecondPart 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous Infusion
PR interval: Baseline153.0 ± 5.66165.0 ± 29.70171.0 ± 16.97183.5 ± 10.61
PR interval: Change from Baseline: Day 1 - 30 minutes-7.0 ± 1.41—-1.5 ± 0.71—
PR interval: Change from Baseline: Day 1 - 2 hours-6.0 ± 14.14—-2.5 ± 2.12—
PR interval: Change from Baseline: Day 1 - 6 hours-3.5 ± 4.95-1.5 ± 7.78-2.5 ± 4.95-14.5 ± 4.95
PR interval: Change from Baseline: Day 1 - 12 hours-4.0 ± 11.31-11.0 ± 19.800.5 ± 3.54-19.5 ± 4.95
PR interval: Change from Baseline: End of Treatment-8.0 ± 2.831.5 ± 10.61-7.5 ± 6.36-7.0 ± 5.66
PR interval: Change from Baseline: Follow Up 1-3.5 ± 12.025.0 ± NA-2.0 ± 12.73-16.5 ± 6.36
PR interval: Change from Baseline: Follow Up 29.0 ± NA-1.0 ± NA-7.0 ± NA-11.0 ± NA
QRS interval: Baseline92.5 ± 2.1299.0 ± 4.2495.0 ± 8.49103.0 ± 4.24
QRS interval: Change from Baseline: Day 1 - 30 minutes-2.0 ± 5.66—1.0 ± 2.83—
QRS interval: Change from Baseline: Day 1 - 2 hours-2.5 ± 0.71—1.0 ± 1.41—
QRS interval: Change from Baseline: Day 1 - 6 hours-2.5 ± 2.12-3.0 ± 12.73-2.0 ± 2.830.0 ± 1.41
QRS interval: Change from Baseline: Day 1 - 12 hours-2.5 ± 0.710.0 ± 5.66-3.0 ± 0.00-0.5 ± 3.54
QRS interval: Change from Baseline: End of Treatment1.5 ± 6.360.0 ± 1.410.0 ± 4.240.5 ± 0.71
QRS interval: Change from Baseline: Follow Up 11.0 ± 0.00-1.0 ± NA-5.0 ± 1.410.0 ± 2.83
QRS interval: Change from Baseline: Follow Up 2-1.0 ± NA-2.0 ± NA2.0 ± NA1.0 ± NA
QT interval: Baseline348.5 ± 30.41401.0 ± 48.08397.5 ± 30.41389.0 ± 22.63
QT interval: Change from Baseline: Day 1 - 30 minutes5.5 ± 21.92—1.0 ± 12.73—
QT interval: Change from Baseline: Day 1 - 2 hours-3.5 ± 12.02—-1.0 ± 14.14—
QT interval: Change from Baseline: Day 1 - 6 hours24.5 ± 10.61-16.5 ± 24.7519.5 ± 38.89-13.5 ± 28.99
QT interval: Change from Baseline: Day 1 - 12 hours28.5 ± 30.41-1.0 ± 1.4130.0 ± 19.80-20.0 ± 28.28
QT interval: Change from Baseline: End of Treatment28.0 ± 16.9728.5 ± 36.06-6.5 ± 37.4815.0 ± 11.31
QT interval: Change from Baseline: Follow Up 128.5 ± 26.162.0 ± NA-12.0 ± 15.56-8.5 ± 2.12
QT interval: Change from Baseline: Follow Up 238.0 ± NA-13.0 ± NA-23.0 ± NA38.0 ± NA
QTcF: Baseline395.0 ± 28.28423.0 ± 41.01408.0 ± 1.41411.5 ± 10.61
QTcF: Change from Baseline: Day 1 - 30 minutes-1.0 ± 19.80—-10.0 ± 14.14—
QTcF: Change from Baseline: Day 1 - 2 hours-2.0 ± 2.83—-8.5 ± 9.19—
QTcF: Change from Baseline: Day 1 - 6 hours7.0 ± 16.97-10.5 ± 23.33-9.5 ± 21.92-1.0 ± 7.07
QTcF: Change from Baseline: Day 1 - 12 hours17.5 ± 12.025.0 ± 7.079.5 ± 17.68-6.0 ± 9.90
QTcF: Change from Baseline: End of Treatment18.5 ± 7.789.0 ± 14.140.5 ± 16.266.5 ± 6.36
QTcF: Change from Baseline: Follow Up 116.0 ± 8.491.0 ± NA-19.0 ± 15.566.0 ± 9.90
QTcF: Change from Baseline: Follow Up 218.0 ± NA-12.0 ± NA-21.0 ± NA24.0 ± NA
PrimarySummary of Baseline and Change From Baseline in PR, QRS, QT and QTcF Intervals at Day 2, 3, 5, 6 (120 Hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (Between Day 34-41) and/or Early Termination- Part 2: MAD

The average of the triplicate readings collected at each assessment time was calculated for each ECG parameter. Baseline was defined as the average (if possible) of the triplicate pre-dose recordings on Day 1. Only centrally read ECG data was used.

Time frame:
Baseline (pre-dose Day 1); Day 2, 3, 5; 120 hours (End of Treatment), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (between Day 34-41), and/or early termination(ET)
Reported as:
Mean · Millisecond
Summary of Baseline and Change From Baseline in PR, QRS, QT and QTcF Intervals at Day 2, 3, 5, 6 (120 Hours), Day 7 (Follow-up 1), Day 10 (Follow-up 2), Day 14 (Follow-up 3), Follow-up 4 (Between Day 34-41) and/or Early Termination- Part 2: MAD
MillisecondPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous Infusion
PR interval: Baseline145.7 ± 12.86139.7 ± 19.14156.0 ± 28.31
PR interval: Change from Baseline: Day 23.8 ± 14.76-5.0 ± 15.171.3 ± 4.51
PR interval: Change from Baseline: Day 31.2 ± 17.88-3.2 ± 9.916.0 ± 11.36
PR interval: Change from Baseline: Day 55.7 ± 19.81-1.6 ± 13.50-3.0 ± 14.14
PR interval: Change from Baseline: End of Treatment9.3 ± 15.46-0.6 ± 15.82-0.3 ± 7.64
PR interval: Change from Baseline: Early Termination——-1.0 ± NA
PR interval: Change from Baseline: Follow Up 17.2 ± 18.631.4 ± 17.86-8.0 ± 18.36
PR interval: Change from Baseline: Follow Up 26.8 ± 28.85-30.0 ± NA-6.0 ± NA
PR interval: Change from Baseline: Follow Up 312.0 ± 24.45-21.0 ± 31.11-18.0 ± NA
PR interval: Change from Baseline: Follow Up 415.0 ± NA-4.0 ± 19.31-23.0 ± NA
QRS interval: Baseline93.7 ± 4.6893.6 ± 10.6390.5 ± 4.43
QRS interval: Change from Baseline: Day 26.7 ± 7.941.7 ± 5.094.7 ± 7.09
QRS interval: Change from Baseline: Day 3-0.7 ± 3.083.5 ± 5.323.3 ± 3.30
QRS interval: Change from Baseline: Day 50.7 ± 2.883.0 ± 3.927.0 ± 5.29
QRS interval: Change from Baseline: End of Treatment0.3 ± 3.785.6 ± 5.562.3 ± 3.51
QRS interval: Change from Baseline: Early Termination——-3.0 ± NA
QRS interval: Change from Baseline: Follow Up 11.0 ± 4.184.0 ± 6.432.3 ± 6.35
QRS interval: Change from Baseline: Follow Up 22.3 ± 4.5016.0 ± NA8.0 ± NA
QRS interval: Change from Baseline: Follow Up 3-0.3 ± 4.866.0 ± 5.6615.0 ± NA
QRS interval: Change from Baseline: Follow Up 4-12.0 ± NA7.0 ± 3.615.0 ± NA
QT interval: Baseline385.5 ± 24.74366.1 ± 22.17373.8 ± 59.57
QT interval: Change from Baseline: Day 225.3 ± 35.5916.2 ± 48.168.3 ± 9.07
QT interval: Change from Baseline: Day 327.5 ± 59.0627.3 ± 43.0110.0 ± 37.34
QT interval: Change from Baseline: Day 512.5 ± 31.0429.0 ± 21.5728.0 ± 61.54
QT interval: Change from Baseline: End of Treatment21.8 ± 46.1023.3 ± 31.078.0 ± 60.61
QT interval: Change from Baseline: Early Termination——-17.0 ± NA
QT interval: Change from Baseline: Follow Up 1-10.2 ± 39.0920.9 ± 16.82-49.7 ± 32.59
QT interval: Change from Baseline: Follow Up 2-19.3 ± 27.0063.0 ± NA0.0 ± NA
QT interval: Change from Baseline: Follow Up 3-22.0 ± 22.1724.5 ± 13.44-21.0 ± NA
QT interval: Change from Baseline: Follow Up 45.0 ± NA-4.0 ± 39.36-36.0 ± NA
QTcF: Baseline404.7 ± 18.13401.3 ± 10.44405.3 ± 18.84
QTcF: Change from Baseline: Day 217.5 ± 20.966.8 ± 19.759.0 ± 7.94
QTcF: Change from Baseline: Day 38.3 ± 27.668.0 ± 21.807.5 ± 24.19
QTcF: Change from Baseline: Day 5-0.2 ± 11.8216.4 ± 20.7419.7 ± 39.37
QTcF: Change from Baseline: End of Treatment3.7 ± 16.5010.7 ± 17.93-1.3 ± 15.50
QTcF: Change from Baseline: Early Termination——-1.0 ± NA
QTcF: Change from Baseline: Follow Up 1-7.2 ± 9.099.1 ± 18.43-15.7 ± 23.01
QTcF: Change from Baseline: Follow Up 2-5.8 ± 9.0018.0 ± NA9.0 ± NA
QTcF: Change from Baseline: Follow Up 3-7.3 ± 9.544.5 ± 13.44-7.0 ± NA
QTcF: Change from Baseline: Follow Up 4-6.0 ± NA2.3 ± 19.437.0 ± NA
SecondaryPF-07304814 (Prodrug) and PF-00835231 (Active Moiety) Plasma PK Parameters: Concentration at 24 Hours (End of Infusion) - Part 1: SAD

C24 was defined as concentration at 24 hours. 24-hour PK draw was approximately 4 hours post end of infusion which corresponded to 28 hours.

Time frame:
Pre-dose and 6 hours post-dose on Day 1; 24 hours; 48 hours; and/or early termination.
Reported as:
Geometric mean · ng/mL
PF-07304814 (Prodrug) and PF-00835231 (Active Moiety) Plasma PK Parameters: Concentration at 24 Hours (End of Infusion) - Part 1: SAD
ng/mLPart 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous Infusion
C24 of PF-07304814NA ± NANA ± NA
C24 of PF-00835231NA ± NANA ± NA
SecondaryPF-07304814 (Prodrug) and PF-00835231 (Active Moiety) Plasma PK Parameter: Concentration at 120 Hours (End of Infusion) - Part 2: MAD

C120 was defined as concentration at 120 hours. Blood sample collection at approximately at 2 and 6 hours post the end of the infusion, which correspond to approximately 122 hours and 126 hours post the start of infusion.

Time frame:
Pre-dose on Day1; Day 2, 3, 5 and 6 (end of treatment day), 7 (Follow-up 1), and/or early termination.
Reported as:
Geometric mean · ng/mL
PF-07304814 (Prodrug) and PF-00835231 (Active Moiety) Plasma PK Parameter: Concentration at 120 Hours (End of Infusion) - Part 2: MAD
ng/mLPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous Infusion
C120 of PF-07304814197.2 ± 7291.64 ± 51
C120 of PF-008352311338 ± 84800.8 ± 19
SecondaryPF-07304814 (Prodrug) and PF-00835231 (Active Moiety) Plasma PK Parameters: Maximum Observed Concentration (Cmax) - Part 2: MAD

Cmax was defined as maximum observed concentration. Blood sample collection at approximately 2 and 6 hours post the end of the infusion, which correspond to approximately 122 hours and 126 hours post the start of infusion.

Time frame:
Pre-dose on Day1; Day 2, 3, 5 and 6 (end of treatment day), 7 (Follow-up 1), and/or early termination.
Reported as:
Geometric mean · ng/mL
PF-07304814 (Prodrug) and PF-00835231 (Active Moiety) Plasma PK Parameters: Maximum Observed Concentration (Cmax) - Part 2: MAD
ng/mLPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous Infusion
Cmax of PF-07304814345.3 ± 70272.6 ± 281
Cmax of PF-008352312382 ± 361265 ± 20
SecondaryPF-07304814 (Prodrug) and PF-00835231 (Active Moiety) Plasma PK Parameters: t½ - Part 2: MAD

t½ was defined as terminal half-life. Blood sample collection at approximately within 30 minutes before end of infusion (\~120 hours), and at 2 and 6 hours post the end of the infusion, which correspond to approximately 122h and 126h post the start of infusion.

Time frame:
Pre-dose on Day1; Day 2, 3, 5 and 6 (end of treatment day), 7 (Follow-up 1), and/or early termination.
Reported as:
Mean · hour
PF-07304814 (Prodrug) and PF-00835231 (Active Moiety) Plasma PK Parameters: t½ - Part 2: MAD
hourPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous Infusion
t½ of PF-008352311.79 ± NA2.317 ± 0.96547
SecondaryPF-07304814 (Prodrug) and PF-00835231 (Active Moiety) Plasma PK Parameters: Concentration at Steady State (Css) - Part 2: MAD

Css was defined as concentration at steady state. Blood sample collection at approximately 2 and 6 hours post the end of the infusion, which correspond to approximately 122 hours and 126 hours post the start of infusion.

Time frame:
Pre-dose on Day1; Day 2, 3, 5 and 6 (end of treatment day), 7 (Follow-up 1), and/or early termination.
Reported as:
Geometric mean · ng/mL
PF-07304814 (Prodrug) and PF-00835231 (Active Moiety) Plasma PK Parameters: Concentration at Steady State (Css) - Part 2: MAD
ng/mLPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous Infusion
Css of PF-07304814229.2 ± 61102.2 ± 35
Css of PF-008352311720 ± 44970.2 ± 16

Adverse events

Collected over From pre-dose on Day 1 up to 41 days. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Part 1: PF-07304814 500 mg 24-hours Continuous Infusion0/2 (0%)1/2 (50%)1/2 (50%)
Part 1: PF-07304814 250 mg 24-hours Continuous Infusion0/2 (0%)0/2 (0%)1/2 (50%)
Part 1: 500 mg Placebo 24-hours Continuous Infusion0/2 (0%)1/2 (50%)2/2 (100%)
Part 1: 250 mg Placebo 24-hours Continuous Infusion0/2 (0%)1/2 (50%)2/2 (100%)
Part 2: PF-07304814 500 mg 120-hours Continuous Infusion0/6 (0%)1/6 (16.7%)2/6 (33.3%)
Part 2: PF-07304814 250 mg 120-hours Continuous Infusion0/7 (0%)2/7 (28.6%)3/7 (42.9%)
Part 2: Placebo 120-hours Continuous Infusion1/4 (25%)1/4 (25%)3/4 (75%)
Most frequent serious events
Most frequent serious events
EventPart 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous InfusionPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous Infusion
COVID-19 pneumoniaInfections and infestations0/20/20/21/20/60/70/4
Subclavian vein thrombosisVascular disorders1/20/21/20/20/60/70/4
HypoxiaRespiratory, thoracic and mediastinal disorders0/20/20/20/20/60/71/4
Pulmonary embolismRespiratory, thoracic and mediastinal disorders0/20/20/20/21/60/71/4
PneumoniaInfections and infestations0/20/20/20/20/61/70/4
Acute respiratory distress syndromeRespiratory, thoracic and mediastinal disorders0/20/20/20/20/61/70/4
DyspnoeaRespiratory, thoracic and mediastinal disorders0/20/20/20/20/61/70/4
Most frequent other events
Showing 10 of 34
Most frequent other events
EventPart 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous InfusionPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous Infusion
CoagulopathyBlood and lymphatic system disorders0/21/20/20/20/60/70/4
TachycardiaCardiac disorders0/20/21/20/20/60/70/4
Abdominal painGastrointestinal disorders0/20/21/20/20/60/70/4
DiarrhoeaGastrointestinal disorders1/20/21/20/20/60/70/4
DyspepsiaGastrointestinal disorders0/20/20/21/20/60/70/4
OedemaGeneral disorders0/20/20/21/20/60/70/4
FolliculitisInfections and infestations1/20/20/20/20/60/70/4
Tinea crurisInfections and infestations0/20/21/20/20/60/70/4
Haematocrit decreasedInvestigations0/20/21/20/20/60/70/4
Haemoglobin decreasedInvestigations0/20/21/20/20/60/70/4

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Part 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous InfusionPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous InfusionTotal
<=18 years00000000
Between 18 and 65 years122155218
>=65 years10011227
Sex: Female, Male
Sex: Female, Male(Participants)Part 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous InfusionPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous InfusionTotal
Female10112106
Male121146419
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Part 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous InfusionPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous InfusionTotal
Hispanic or Latino10102004
Not Hispanic or Latino121245318
Unknown or Not Reported00000213
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Part 1: PF-07304814 500 mg 24-hours Continuous InfusionPart 1: PF-07304814 250 mg 24-hours Continuous InfusionPart 1: 500 mg Placebo 24-hours Continuous InfusionPart 1: 250 mg Placebo 24-hours Continuous InfusionPart 2: PF-07304814 500 mg 120-hours Continuous InfusionPart 2: PF-07304814 250 mg 120-hours Continuous InfusionPart 2: Placebo 120-hours Continuous InfusionTotal
American Indian or Alaska Native00000000
Asian00000101
Native Hawaiian or Other Pacific Islander00000000
Black or African American00001012
White211255319
More than one race00000000
Unknown or Not Reported01100103
08

Study locations

13 sites
  • El Camino Health
    Mountain View, California 94040, United States
  • Palo Alto Medical Foundation
    Mountain View, California 94040, United States
  • Hoag Memorial Hospital Presbyterian
    Newport Beach, California 92663, United States
  • UC Davis Health Investigational Drug Pharmacy
    Sacramento, California 95817, United States
  • UC Davis Medical Center
    Sacramento, California 95817, United States
  • Massachusetts General Hospital Translational and Clinical Research Center
    Boston, Massachusetts 02114, United States
  • Massachusetts General Hospital, Clinical Trials Pharmacy
    Boston, Massachusetts 02114, United States
  • Massachusetts General Hospital
    Boston, Massachusetts 02114, United States
  • Regional One Health
    Memphis, Tennessee 38103, United States
  • University Hospital Brugmann
    Brussels, 1020, Belgium
  • Santa Casa De Misericórdia de Belo Horizonte
    Belo Horizonte, Minas Gerais 30150221, Brazil
  • Hospital Universitario Fundacion Jimenez Diaz
    Madrid, 28040, Spain
  • Hospital Universitario Virgen Del Rocio
    Sevilla, 41013, Spain
09

References and documents

Publications

  • Crosas-Molist E, Samain R, Kohlhammer L, Orgaz JL, George SL, Maiques O, Barcelo J, Sanz-Moreno V. Rho GTPase signaling in cancer progression and dissemination. Physiol Rev. 2022 Jan 1;102(1):455-510. doi: 10.1152/physrev.00045.2020. Epub 2021 Sep 20. PubMed 34541899 ↗

Study documents

  • Study protocol · Dec 15, 2020
  • Statistical analysis plan · Jun 29, 2021

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 3, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT04535167
Lead sponsor
Pfizer
Responsible party
Sponsor
First posted
Sep 1, 2020
Start date
Sep 9, 2020
Primary completion
Jun 7, 2021
Completion
Jun 7, 2021
Results posted
May 3, 2023
Last update
May 3, 2023

Study contacts

Pfizer CT.gov Call Center
study director · Pfizer

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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