CClinicalTrials.gg
CompletedNCT05496738Updated Jun 6, 2024

A Preliminary Study to Evaluate PF-07264660 in Healthy Participants

A Phase 1 interventional study of PF-07264660 intravenous single ascending dose and PF-07264660 subcutaneous multiple ascending dose in Healthy, sponsored by Pfizer. Completed at 6 sites in United States. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-06-06.

Sponsored by Pfizer · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was May 2024, 2 years 5 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
59
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The purpose of this clinical trial is to learn about the safety and effects of study medicine PF-07264660 compared to a placebo. This is the first study of PF-07264660 in humans. All participants in this study will received PF-07264660 or a placebo and it will be assigned by chance. People may be able to participate if they are healthy. The study medicine may be given by shots under the skin or through a vein depending on which group you are assigned to. If you are assigned into Part A, you will receive the study medicine once, stay overnight at the research unit from 3 to 5 overnight stays and you will need to visit the clinic about 11 follow-up visits. Participants will be in this study for up to about 541 days. If you are assigned into Part B, you will receive the study medicine three times, stay overnight at the clinic from 3 to 5 overnight stays and you will need to visit the research unit about 12 follow-up visits. Participants willbe in this study for up to about 561 days.

Read the detailed description

This is an first-in-human within-cohort randomized, participant- and investigator-blind, sponsor-open, placebo-controlled study of the safety, tolerability, pharmacokinetics, and pharmacodynamics following single ascending dose and multiple ascending dose.

PF-07264660 that will be conducted in healthy adults. Up to approximately 67 participants will be enrolled into the study and randomly assigned to receive PF-07264660 or placebo. This will include up to approximately 43 healthy participants (including 5 optional Japanese participants) in Part A, and up to approximately 24 healthy participants (including 8 participants in optional multiple ascending dose cohort) in Part B.

02

Conditions studied

  • Healthy

Keywords

  • Healthy volunteers
  • Inteurleukin-33
  • Inteurleukin-4
  • Inteurleukin-13
  • IL-33
  • IL-4
  • IL-13
  • monoclonal antibody
03

In context

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 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Healthy volunteer male and female participants between 18 to 65 years of age
  • Body Mass Index (BMI) of 17.5 to 32 kg/m2; and a total body weight >50 kg (110 lb)

Exclusion criteria

Exclusion Criteria:

  • Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurological, or allergic disease (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at the time of dosing).
  • Evidence of active, latent, or inadequately treated infection with Mycobacterium tuberculosis
  • Participants with acute or chronic infections or infection history
  • History of human immunodeficiency virus (HIV); Infection with hepatitis B or hepatitis C viruses according to protocol specific testing algorithm
  • History of febrile illness within 5 days prior to the first dose of investigational product.
  • Recent exposure to live or attenuated vaccines within 28 days of the screening visit.
  • Failure to comply with coronavirus disease 2019 (COVID-19) vaccination requirements as per site protocols.
  • Have any malignancies or have a history of malignancies with the exception of adequately treated or excised non-metastatic basal cell or squamous cell cancer of the skin, or cervical carcinoma in situ.
  • History of any lymphoproliferative disorder such as Epstein-Barr Virus (EBV) related lymphoproliferative disorder, history of lymphoma, leukemia, or signs and symptoms suggestive of current lymphatic or lymphoid tissue disease.
  • Undergone significant trauma or major surgery within 1 month of the first dose of study drug
  • Previous administration with an investigational product (drug or vaccine) within 30 days (or as determined by the local requirement) or 5 half-lives preceding the first dose of study intervention used in this study (whichever is longer)
  • Screening supine blood pressure (BP) ≥140 mm Hg (systolic) or ≥90 mm Hg (diastolic), following at least 5 minutes of supine rest
  • Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) level ≥1.5 × Upper limit of normal (ULN);
  • Total bilirubin level ≥1.5 × ULN; participants with a history of Gilbert's syndrome may have direct bilirubin measured and would be eligible for this study provided the direct bilirubin level is ≤ULN.
  • estimated glomerular filtration rate (eGFR) ≤75 mL/min/1.73 m2 based on chronic kidney disease epidemiology (CKD-EPI) equation
  • History of alcohol abuse or binge drinking and/or any other illicit drug use or dependence within 6 months of Screening
  • Participants with more than 5 cigarettes per day or ≥10 pack years
  • Blood donation (excluding plasma donations) of approximately 1 pint (500 mL) or more within 60 days prior to dosing
05

Study design

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

Study arms

  • Experimental
    PF-07264660 intravenous single ascending dose

    PF-07264660 will be administered intravenously

    Drug: PF-07264660 intravenous single ascending dose

  • Experimental
    PF-07264660 subcutaneous multiple ascending dose

    PF-07264660 will be administered subcutaneously

    Drug: PF-07264660 subcutaneous multiple ascending dose

  • Placebo comparator
    Intravenous placebo

    Placebo will be administered intravenously

    Other: Intravenous placebo

  • Placebo comparator
    Subcutaneous Placebo

    Placebo will be administered subcutaneously

    Other: subcutaneous placebo

Interventions

  • DrugPF-07264660 intravenous single ascending dose

    PF-07264660 will be administered intravenously in single ascending doses

  • DrugPF-07264660 subcutaneous multiple ascending dose

    PF-07264660 will be administered subcutaneously in multiple ascending doses

  • OtherIntravenous placebo

    Placebo will be administered intravenously in single ascending doses

  • Othersubcutaneous placebo

    Placebo will be administered subcutaneously in multiple ascending doses

06

What researchers measure

Primary outcomes

  1. Number of participants with treatment emergent treatment related adverse events (AE's)

    To evaluate the safety and tolerability of PF 07264660, following single and multiple doses in healthy adults

    Time frame: Baseline up to approximately 1.5 years

  2. Number of participants with treatment emergent treatment-related serious adverse events (SAE's)

    To evaluate the safety and tolerability of PF 07264660, following single and multiple doses in healthy adults

    Time frame: Baseline up to approximately 1.5 years

  3. Number of participants with change from baseline in blood pressure

    Identify systolic and diastolic readings that are outside the normal range. The number and percentage of participants who experienced significant blood pressure change from baseline will be summarized

    Time frame: Baseline up to approximately 1.5 years

  4. Number of participants with change from baseline in pulse rate

    Identify pulse rate readings that are outside the normal range. The number and percentage of participants who experienced significant pulse rate change from baseline will be summarized

    Time frame: Baseline up to approximately 1.5 years

  5. Number of participants with change from baseline in temperature

    Identify temperature readings that are outside the normal range. The number and percentage of participants who experienced significant temperature change from baseline will be summarized

    Time frame: Baseline up to approximately 1.5 years

  6. Number of participants with change from baseline in clinical laboratory values

    Identify laboratory abnormalities from baseline will be summarized

    Time frame: Baseline up to approximately 1.5 years

  7. Number of participants with change from baseline in heart rate

    Determine the effect of the drug on heart rate The number and percentage of participants who experienced heart rate changes will be summarized

    Time frame: Baseline up to approximately 1.5 years

  8. Number of participants with change from baseline in QT interval

    Determine the effect of the drug on QT interval. The number and percentage of participants who experienced QT interval changes will be summarized

    Time frame: Baseline up to approximately 1.5 years

  9. Number of participants with change from baseline in corrected QT interval

    Determine the effect of the drug on corrected QT interval. The number and percentage of participants who experienced corrected QT interval changes will be summarized

    Time frame: Baseline up to approximately 1.5 years

  10. Number of participants with change from baseline in PR interval

    Determine the effect of the drug on PR interval. The number and percentage of participants who experienced PR interval changes will be summarized

    Time frame: Baseline up to approximately 1.5 years

  11. Number of participants with change from baseline in QRS interval

    Determine the effect of the drug on QRS interval. The number and percentage of participants who experienced QRS interval changes will be summarized

    Time frame: Baseline up to approximately 1.5 years

Secondary outcomes

  1. Number of participants with change from baseline in area under the concentration versus time curve from time zero to the last quantifiable time point (AUClast) of single ascending doses of PF-07264660

    AUC of PF 07264660 will be calculated at selected timepoints

    Time frame: Baseline up to approximately 1.5 years

  2. Number of participants with change from baseline in maximum plasma concentration (Cmax) of PF-07264660 after a single dose

    Peak concentration of PF-07264660 during selected timepoints

    Time frame: Baseline up to approximately 1.5 years

  3. Number of participants with change from baseline in maximum plasma concentration (Cmax) of PF-07264660 after multiple doses

    Peak concentration of PF-07264660 during selected timepoints

    Time frame: Baseline up to approximately 1.5 years

  4. Number of participants with change from baseline in time to maximum plasma concentration (Tmax) of PF-07264660 after a single dose

    Time to peak concentration of PF-07264660 during selected timepoints

    Time frame: Baseline up to approximately 1.5 years

  5. Number of participants with change from baseline in time to maximum plasma concentration (Tmax) of PF-07264660 after multiple doses

    Time to peak concentration of PF-07264660 during selected timepoints

    Time frame: Baseline up to approximately 1.5 years

  6. Number of participants with change from baseline in terminal elimination half-life (t½) of PF-07264660 after a single dose

    Terminal elimination half-life of PF-07264660 during selected timepoints

    Time frame: Baseline up to approximately 1.5 years

  7. Number of participants with change from baseline in terminal elimination half-life (t½) of PF-07264660 after multiple doses

    Terminal elimination half-life of PF-07264660 during selected timepoints

    Time frame: Baseline up to approximately 1.5 years

  8. Number of participants with change from baseline in area under the serum concentration time profile from time 0 extrapolated to infinite time (AUCinf) of single ascending doses of PF-07264660

    AUC of PF 07264660 will be calculated at selected timepoints

    Time frame: Baseline up to approximately 1.5 years

  9. Number of participants with change from baseline in area under the concentration time profile from time zero to time tau (τ), the dosing interval (AUCtau) of multiple ascending doses of PF-07264660

    AUC of PF 07264660 will be calculated at selected timepoints

    Time frame: Baseline up to approximately 1.5 years

  10. Number of participants with change from baseline in incidence and titers of anti-drug antibodies against PF-07264660

    Number of participants with the presence of anti-PF-07264660 antibodies

    Time frame: Baseline up to approximately 1.5 years

  11. Number of participants with change from baseline in incidence and titers of neutralizing antibodies against PF-07264660

    Number of participants with the presence of anti-PF-07264660 antibodies

    Time frame: Baseline up to approximately 1.5 years

07

Study locations

6 sites
  • Collaborative Neuroscience Research, LLC
    Garden Grove, California 92845, United States
  • Collaborative Neuroscience Research, LLC
    Long Beach, California 90806, United States
  • Collaborative Neuroscience Research, LLC
    Los Alamitos, California 90720, United States
  • Prism Research LLC dba Nucleus Network
    Saint Paul, Minnesota 55114, United States
  • Clinical Trials of Texas, LLC
    San Antonio, Texas 78229, United States
  • Spaulding Clinical Research
    West Bend, Wisconsin 53095, United States
08

References and documents

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.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 6, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05496738
Lead sponsor
Pfizer
Responsible party
Sponsor
First posted
Aug 11, 2022
Start date
Aug 16, 2022
Primary completion
May 6, 2024
Completion
May 6, 2024
Last update
Jun 6, 2024

Study contacts

Pfizer CT.gov Call Center
study director · Pfizer

Oversight

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

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This study is completed, as verified in Jun 2024. You cannot join it, but the record below documents what was studied.

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