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HealthyPhase 1NCT05685264

A Study to Learn How the Study Medicine (Ponsegromab) is Changed and Eliminated From Healthy Chinese Adults

A Phase 1 study testing Ponsegromab in people with Healthy, run by Pfizer at 2 sites in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this clinical trial is to learn about the safety of the study medicine (ponsegromab) and how it undergoes change and elimination in healthy Chinese adults. This study is seeking male and female Chinese participants who are very healthy as confirmed after some medical tests. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
Ponsegromab
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
18 participants
Where
2 sitesChina
Study dates
18 Jan 2023to 7 Jul 2023
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Participants must be 18 to 55 years of age, inclusive, at the time of signing the informed consent
  • Male and female Chinese participants who are overtly healthy as determined by medical evaluation including medical history, physical examination, BP and PR measurement, 12-lead ECG, and laboratory tests. Chinese participants are defined as individuals currently residing in mainland China who were born in China and have both parents of Chinese descent.
  • Participants who are willing and able to comply with all scheduled visits, treatment plan, laboratory tests, lifestyle considerations, and other study procedures.
  • BMI of 17.5 to 30.5 kg/m2; and a total body weight >50 kg (110 lb).
  • Capable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the Informed Consent Document..

Who cannot join

  • 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).
  • History of HIV infection, syphilis, hepatitis B, or hepatitis C; positive testing for HIV, syphilis, HBsAg, or HCVAb. Hepatitis B vaccination is allowed.
  • History of allergic or anaphylactic reaction to any therapeutic or diagnostic monoclonal antibody or molecules made of components of monoclonal antibodies.
  • History of recurrent infections or active infection within 28 days of screening.
  • History of sensitivity to heparin or heparin-induced thrombocytopenia.
  • Other medical or psychiatric condition including recent (within the past year) or active suicidal ideation/behavior or laboratory abnormality or other conditions or situations related to COVID-19 pandemic (eg, contact with positive case, residence, or travel to an area with high incidence) that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study.
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  • Use of prescription or nonprescription drugs and dietary and herbal supplements within 7 days or 5 half-lives (whichever is longer) prior to the first dose of study intervention.
  • Exposure to live vaccines within 28 days of screening.
  • Previous administration with an investigational drug within 30 days (or as determined by the local requirement) or marketed or investigational monoclonal antibodies within 3 months or 5 half-lives preceding the first dose of study intervention used in this study (whichever is longer).
  • A positive urine drug test.
  • Screening supine BP ≥140 mm Hg (systolic) or ≥90 mm Hg (diastolic), following at least 5 minutes of supine rest. If BP is ≥140 mm Hg (systolic) or ≥90 mm Hg (diastolic), the BP should be repeated 2 more times and the average of the 3 BP values should be used to determine the participant's eligibility.
  • Screening 12-lead ECG that demonstrates clinically relevant abnormalities that may affect participant safety or interpretation of study results (eg, baseline QTcF interval >450 msec, or QRS interval >120 msec). If the baseline uncorrected QT interval is >450 msec, this interval should be rate-corrected using the Fridericia method and the resulting QTcF should be used for decision making and reporting. If QTcF exceeds 450 msec, or QRS exceeds 120 msec, the ECG should be repeated 2 more times and the average of the 3 QTcF or QRS values should be used to determine the participant's eligibility. Computer-interpreted ECGs should be overread by a physician experienced in reading ECGs before excluding a participant.
  • Participants with ANY of the following abnormalities in clinical laboratory tests at screening, as assessed by the study-specific laboratory and confirmed by a single repeat test, if deemed necessary:
  • AST or ALT level ≥1.5 × 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.
  • COVID-19 positive.
  • History of alcohol abuse or binge drinking and/or any other illicit drug use or dependence within 6 months of Screening. Binge drinking is defined as a pattern of 5 (male) and 4 (female) or more alcoholic drinks in about 2 hours. As a general rule, alcohol intake should not exceed 14 units per week (1 unit = 240 mL beer, 30 mL of 40% spirit or 90 mL of wine).
  • Blood donation (excluding plasma donations) of approximately 400 mL or more within 60 days prior to dosing.
  • Unwilling or unable to comply with the criteria in the Lifestyle Considerations section of this protocol.
  • Investigator site staff or Pfizer employees directly involved in the conduct of the study, site staff otherwise supervised by the investigator, and their respective family members.

Trial locations and contacts

2 sites in 1 country.

China2 sites
  • Huashan Hospital Fudan University

    Shanghai, Shanghai Municipality, 201107

  • HuaShan Hospital

    Shanghai, Shanghai Municipality, 201107

Other trials in China

About this study

Official title: A PHASE 1, OPEN-LABEL, SINGLE DOSE STUDY TO INVESTIGATE THE PHARMACOKINETICS, PHARMACODYNAMICS, SAFETY, AND TOLERABILITY OF PONSEGROMAB ADMINISTERED SUBCUTANEOUSLY IN HEALTHY ADULT CHINESE PARTICIPANTS

The purpose of this clinical trial is to learn about the safety of the study medicine (ponsegromab) and how it undergoes change and elimination in healthy Chinese adults. This study is seeking male and female Chinese participants who are very healthy as confirmed after some medical tests.

All participants in this study will receive Ponsegromab only once:

Read more
  • for half of the participants, ponsegromab will be given as a shot in the front of the thigh, abdomen, or outer area of the upper arm at the study clinic.
  • for another half of the participants, ponsegromab will be given as four shots in the front of the thigh, abdomen, or outer area of the upper arm at the study clinic.

We will measure the amount of the study medicine in the blood of the participants after giving the shots. Later we will examine experiences of people receiving the study medicine. This will help us understand how the medicine is changed and eliminated from your body and to decide if the study medicine is safe. Participants will take part in this study for 22 weeks. During this time, they will stay at the study clinic for the first 8 days and will visit the study clinic about 8 times.

Conditions
Healthy
Being tested
Ponsegromab
Keywords
Ponsegromab, Healthy Volunteers

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PonsegromabDrug

    Participants will receive one subcutaneous injection

  • PonsegromabDrug

    Participants will receive four subcutaneous injections

Study groups in NCT05685264
Study groupRoleWhat they receive
Ponsegromab low doseExperimentalNot described
Receives: Drug: Ponsegromab
Ponsegromab high doseExperimentalNot described
Receives: Drug: Ponsegromab

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Area Under the Serum Concentration-Time Profile From Time 0 Extrapolated to Infinite Time (AUCinf) of Unbound and Total Ponsegromab

    AUCinf was defined as area under the serum concentration-time profile from time 0 extrapolated to infinite time.

    Measured: Pre-dose, 12, 24, 48, 72, 120, 168 hours after dose on Day 1, Days 10, 15, 29, 50, 71, 93, 106, and 127

  2. Area Under the Serum Concentration-Time Profile From Time 0 to the Time of the Last Quantifiable Concentration (AUClast) of Unbound and Total Ponsegromab

    AUClast was defined as area under the serum concentration-time profile from time 0 to the time of the last quantifiable concentration.

    Measured: Pre-dose, 12, 24, 48, 72, 120, 168 hours after dose on Day 1, Days 10, 15, 29, 50, 71, 93, 106, and 127

  3. Maximum Observed Serum Concentration (Cmax) of Unbound and Total Ponsegromab

    Cmax was defined as maximum observed concentration. Cmax was observed directly from data.

    Measured: Pre-dose, 12, 24, 48, 72, 120, 168 hours after dose on Day 1, Days 10, 15, 29, 50, 71, 93, 106, and 127

  4. Time for Cmax (Tmax) of Unbound and Total Ponsegromab

    Tmax was defined as time for Cmax. Tmax was observed directly from data as time of first occurrence.

    Measured: Pre-dose, 12, 24, 48, 72, 120, 168 hours after dose on Day 1, Days 10, 15, 29, 50, 71, 93, 106, and 127

  5. Terminal Half Life (t1/2) of Unbound and Total Ponsegromab

    t1/2 was defined as terminal half life. t1/2 was calculated as Loge(2)/kel, where kel was the terminal phase rate constant calculated by a linear regression of the log linear concentration time curve.

    Measured: Pre-dose, 12, 24, 48, 72, 120, 168 hours after dose on Day 1, Days 10, 15, 29, 50, 71, 93, 106, and 127

Secondary outcomes (5)
  1. Number of Participants With All-Causality Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)

    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. TEAEs were defined as events that started on or after the first dose but before the end of the study (approximately 18 weeks post dose on Day 1). An SAE was defined as any untoward medical occurrence at any dose that resulted in death; was life-threatening; required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability/incapacity; was a congenital anomaly/birth defect.

    Measured: From the first dose of study intervention on Day 1 to Day 127

  2. Number of Participants With Treatment-Related TEAEs and SAEs

    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. TEAEs were defined as events that started on or after the first dose but before the end of the study (approximately 18 weeks post dose on Day 1). An SAE was defined as any untoward medical occurrence at any dose that resulted in death; was life-threatening; required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability/incapacity; was a congenital anomaly/birth defect. Causality of the TEAEs and SAEs was judged by the investigator.

    Measured: From the first dose of study intervention on Day 1 to Day 127

  3. Number of Participants With Laboratory Abnormalities Without Regard to Baseline Abnormality

    Hematology parameters included hemoglobin, hematocrit, red blood cell, white blood cell and platelet count, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, mean platelet volume, total neutrophils, eosinophils, monocytes, basophils and lymphocytes. Chemistry parameters included blood urea nitrogen, glucose (fasting), calcium, sodium, potassium, chloride, total bicarbonate, aspartate aminotransferase, alanine aminotransferase, total bilirubin, alkaline phosphatase, uric acid, albumin, total protein, and creatinine. Urine parameters included pH, glucose, protein, blood, ketones, nitrites, leukocyte esterase, urobilinogen, urine bilirubin, microscopy. Only those categories in which at least 1 participant had data were reported.

    Measured: From the first dose of study intervention on Day 1 to Day 127

  4. Number of Participants With Clinically Significant Change in Vital Signs

    Vital sign measurements included supine blood pressure and pulse rate. Any safety assessments (vital sign measurements) including those that worsen from baseline, considered clinically significant in the medical and scientific judgment of the investigator or were considered meeting the AE definition and are listed below.

    Measured: From the first dose of study intervention on Day 1 to Day 127

  5. Number of Participants With Clinically Significant Change in Electrocardiogram (ECG)

    ECG abnormalities criteria included: 1) maximum QTc interval adjusted according to Fridericia formula (QTcF) (msec): >450, >480, >500, increase from baseline >30, increase from baseline >30, >60; 2) maximum pulse rate (msec): ≥300, baseline >200 and maximum increase ≥25%, baseline ≤200 and maximum increase ≥50%; 3) maximum QRS (msec): ≥140, increase ≥50%.

    Measured: From the first dose of study intervention on Day 1 to Day 127

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Jan 2023
  2. Study start18 Jan 2023
  3. Primary completion7 Jul 2023
  4. Study completion7 Jul 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Basic science
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
18 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05685264
Sponsor's protocol ID
C3651012
Status last verified
Jun 2024
First submitted
5 Jan 2023
Last updated
1 Oct 2024
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
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.

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Ponsegromab in people with Healthy, run by Pfizer at 2 sites in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 20 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 1 Oct 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 1 Oct 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Area Under the Serum Concentration-Time Profile From Time 0 Extrapolated to Infinite Time (AUCinf) of Unbound and Total Ponsegromab (time frame: Pre-dose, 12, 24, 48, 72, 120, 168 hours after dose on Day 1, Days 10, 15, 29, 50, 71, 93, 106, and 127). The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Oct 2024.

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Clinical Trial NCT05685264 | AzTrials