A Preliminary Study to Evaluate PF-07264660 in Healthy Participants

Study Overview
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Brief Summary
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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.

Detailed Description
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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.

Official Title
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A PHASE 1, RANDOMIZED, DOUBLE-BLIND, SPONSOR-OPEN, PLACEBO-CONTROLLED, DOSE-ESCALATING STUDY TO EVALUATE THE SAFETY, TOLERABILITY, PHARMACOKINETICS, AND PHARMACODYNAMICS OF SINGLE AND MULTIPLE INTRAVENOUS AND SUBCUTANEOUS DOSES OF PF-07264660 IN HEALTHY PARTICIPANTS

Conditions
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Healthy

Intervention / Treatment
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* Drug: PF-07264660 intravenous single ascending dose
* Drug: PF-07264660 subcutaneous multiple ascending dose
* Other: Intravenous placebo
* Other: subcutaneous placebo


Participation Criteria
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Eligibility Criteria
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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: 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

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 65 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Sequential Assignment
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: PF-07264660 intravenous single ascending dose<br>PF-07264660 will be administered intravenously | Drug: PF-07264660 intravenous single ascending dose<br>* PF-07264660 will be administered intravenously in single ascending doses<br>|
| Experimental: PF-07264660 subcutaneous multiple ascending dose<br>PF-07264660 will be administered subcutaneously | Drug: PF-07264660 subcutaneous multiple ascending dose<br>* PF-07264660 will be administered subcutaneously in multiple ascending doses<br>|
| Placebo Comparator: Intravenous placebo<br>Placebo will be administered intravenously | Other: Intravenous placebo<br>* Placebo will be administered intravenously in single ascending doses<br>|
| Placebo Comparator: Subcutaneous Placebo<br>Placebo will be administered subcutaneously | Other: subcutaneous placebo<br>* Placebo will be administered subcutaneously in multiple ascending doses<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| Number of participants with change from baseline in clinical laboratory values | Identify laboratory abnormalities from baseline will be summarized | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 
| 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 | Baseline up to approximately 1.5 years | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Healthy volunteers, Inteurleukin-33, Inteurleukin-4, Inteurleukin-13, IL-33, IL-4, IL-13, monoclonal antibody