Study to Evaluate the Safety, Tolerability, PK, and PD of PB2452 in Healthy Volunteers

February 7, 2019 updated by: PhaseBio Pharmaceuticals Inc.

A Phase 1, Randomized, Double-Blind, Placebo-Controlled, Single Ascending Dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of MEDI2452 (PB2452) With and Without Ticagrelor Pretreatment in Healthy Volunteers

This is a Phase 1, first-in-human, randomized, double-blind, placebo-controlled, single ascending dose, sequential group study to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of PB2452 with and without ticagrelor pretreatment when administered to healthy male and female subjects.

Up to 6 dose levels will be evaluated. This study will have up to 10 cohorts and up to a total of approximately 76 subjects with either 4 or 8 healthy young subjects in Cohorts 1 through 9 or approximately 16 older subjects in Cohort 10. The starting dose of PB2452 will be 100 mg and the planned doses for subsequent cohorts are 300, 1000, 3000, 9000, and 18000 mg.

Study Overview

Study Type

Interventional

Enrollment (Actual)

64

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 50 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. The subject is male or female between 18 and 50 years of age, inclusive.
  2. The subject has a body mass index between 18 and 35 kg/m2 and a weight of ≥50 kg but ≤120 kg, inclusive, at screening.
  3. The subject is considered by the investigator to be in good general health as determined by medical history, clinical laboratory test results, vital sign measurements, 12 lead ECG results, and physical examination findings at screening.

    Specific inclusionary laboratory values at screening and check-in require the following:

    • Aspartate transaminase (AST), alanine transaminase (ALT), total serum bilirubin and alkaline phosphatase levels within the normal range as defined by the clinical laboratory
    • White blood cell (WBC) count, platelet count and hemoglobin level within the normal range as defined by the clinical laboratory
    • Thyroid stimulating hormone (TSH) level within the normal range as defined by the clinical laboratory at screening
    • Prothrombin time (PT) and partial thromboplastin time (PTT) level within the normal range as defined by the clinical laboratory
  4. Female subjects of childbearing potential must not be pregnant, lactating, or planning to become pregnant before 3 months after the last dose of study drug, and have a negative serum pregnancy test at screening and check-in. Female subjects of childbearing potential must use 2 effective methods of birth control (ie, oral, implantable, patch, or injectable contraceptives in combination with a condom, hormone-containing intrauterine device that has been in place for at least 2 months prior to screening in combination with a condom, double-barrier method [ie, condoms, sponge, diaphragm, or cervical cap with spermicidal gels or cream], or vasectomy for male subjects or male partners of female subjects) from 30 days before study drug administration through the end of the study. Women are considered not to be of childbearing potential if they have fulfilled one of the following criteria: documentation of irreversible surgical sterilization (ie, hysterectomy, or bilateral oophorectomy [not tubal ligation]), or postmenopausal (defined as amenorrhea for 12 consecutive months following cessation of all exogenous hormonal treatments, and documented plasma follicle-stimulating hormone level >40 IU/mL or amenorrhea for 24 consecutive months). Male subjects with partners of childbearing potential must agree to use appropriate and effective measures of contraception (eg, condom plus diaphragm with spermicide; condom plus spermicide) during the study and for 30 days after the last dose of study drug, and to refrain from donating sperm for at least 7 days prior to the first dose of study drug until at least 90 days following the last dose of study drug.
  5. The subject agrees to comply with all protocol requirements.
  6. The subject is able to provide written informed consent.

Exclusion Criteria:

  1. History of any clinically significant acute or chronic disease or medical disorder.
  2. History or presence of gastrointestinal, hepatic (with the exception of Gilbert's syndrome), or renal disease or renal insufficiency (ie, estimated glomerular filtration rate <60 ml/min/1.73m2), or any other condition known to interfere with absorption, distribution, metabolism, or excretion of drugs.
  3. Any clinically significant illness, medical/surgical procedure, or trauma within 4 weeks of the first administration of study drug or any planned surgical procedure that will occur during the study (from screening through the Day 28 follow up visit).
  4. Any clinically significant abnormal findings in physical examination, vital signs, laboratory assessments, and ECG parameters identified during screening or check-in.
  5. Any history of arterial or venous thrombosis, including any of the following:

    • History of transient ischemic attack, cardiovascular accident, stroke (ischemic or hemorrhagic), unstable angina, myocardial infarction, or peripheral arterial disease
    • History of deep venous thrombosis, pulmonary embolus, thrombophlebitis, or cavernous malformations
  6. Any increased risk of bleeding, including the following:

    • Recent history (within 30 days preceding the first dose of study drug) of gastrointestinal bleeding
    • Any history of severe head trauma, intracranial hemorrhage, intracranial neoplasm, arteriovenous malformation, aneurysm, or proliferative retinopathy
    • Any history of intracranial, intraocular, retroperitoneal, or spinal bleeding
    • Any recent (within 30 days preceding the first dose of study drug) major trauma
    • History of hemorrhagic disorders that may increase the risk of bleeding (eg, hemophilia, von Willebrand's disease)
    • Receiving chronic treatment with nonsteroidal anti-inflammatory drugs (including aspirin [greater than 100 mg daily]), anticoagulants, or other antiplatelet agents that cannot be discontinued (including clopidogrel, prasugrel, ticlopidine, dipyridamole, or cilostazol).
    • Have taken, within 30 days of screening, any oral or parenteral anticoagulant, including low molecular-weight heparin
    • Have taken non-steroidal anti-inflammatory medications, including aspirin, within 14 days of screening
  7. The subject has a positive test result for hepatitis B surface antigen, hepatitis C virus antibody, or human immunodeficiency virus types 1 or 2 antibodies at screening.
  8. Any ongoing or recent (ie, during the screening period) minor medical complaints that may interfere with the interpretation of the study data or are considered unlikely to comply with study procedures, restrictions, and requirements as judged by the investigator.
  9. Concomitant oral or IV therapy with strong CYP3A inhibitors, CYP3A substrates with narrow therapeutic indices, or strong CYP3A inducers, which cannot be stopped within at least 5 half-lives, but not shorter than 10 days, before randomization (a list of examples can be found in Section 6.2).
  10. Any prescription (excluding hormonal birth control) or over the counter medications (except paracetamol [up to 2 g per day]), including herbal or nutritional supplements, within 14 days before the first dose of study drug.
  11. The subject has consumed grapefruit or grapefruit juice, Seville orange or Seville orange containing products (eg, marmalade), or alcohol-, or xanthine containing products within 48 hours before dosing with study drug.
  12. The subject is participating in any other study or is taking part in a non medication study which, in the opinion of the investigator, would interfere with the outcome of the study.
  13. The subject has received another new chemical entity (defined as a compound which has not been approved for marketing) or any marketed or investigational biologic agent within 30 days of the first administration of study drug in this study. The period of exclusion begins 30 days after the final dose or 5 half-lives of the experimental medication has elapsed, whichever is longer.
  14. The subject has involvement with any PhaseBio or study site employee or their close relatives (eg, spouse, parents, siblings, or children whether biological or legally adopted).
  15. The subject has previously received MEDI2452 (PB2452).
  16. The subject is a smoker or has used nicotine or nicotine containing products (eg, snuff, nicotine patch, nicotine chewing gum, mock cigarettes, or inhalers) within 3 months before the first dose of study drug.
  17. The subject has a known or suspected history of drug abuse (including alcohol) or has a positive test result for drugs of abuse, alcohol, or cotinine (nicotine level above 300 ng/mL) at screening or check-in.
  18. The subject has been involved in strenuous activity or contact sports within 24 hours before the first dose of study drug and while confined in the clinical site.
  19. The subject has donated blood or plasma within 1 month of screening or any blood donation/loss more than 500 mL during the 3 months prior to the first dose of study drug.
  20. The subject has a history of severe allergy/hypersensitivity or ongoing allergy/hypersensitivity, as judged by the investigator or history of hypersensitivity to drugs with a similar chemical structure or class to ticagrelor, any biologic therapeutic agent, or any significant food allergy that could preclude a standard diet in the clinical site.
  21. Concern for the inability of the subject to comply with study procedures and/or follow up, or, in the opinion of the investigator, the subject is not suitable for entry into the study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Sequential Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 1: 100 mg PB2452 or Placebo (no Ticagrelor)
PB2452 Infusion or Placebo - Sodium Chloride
30 minute - 12 hour infusion
30 minute - 12 hour infusion
Experimental: 2: 300 mg PB2452 or Placebo (no Ticagrelor)
PB2452 Infusion or Placebo - Sodium Chloride
30 minute - 12 hour infusion
30 minute - 12 hour infusion
Experimental: 3: 1000 mg PB2452 or Placebo (no Ticagrelor)
PB2452 Infusion or Placebo - Sodium Chloride
30 minute - 12 hour infusion
30 minute - 12 hour infusion
Experimental: 4: 1000 mg PB2452 or Placebo (Ticagrelor Pre-Trx)
PB2452 Infusion or Placebo - Sodium Chloride With Ticagrelor Oral Tablet: 180 mg+90 mg BID for a total of 5 doses
30 minute - 12 hour infusion
30 minute - 12 hour infusion
Experimental: 5: 3000 mg PB2452 or Placebo (Ticagrelor Pre-Trx)
PB2452 Infusion or Placebo - Sodium Chloride with Ticagrelor Oral Tablet: 180 mg+90 mg BID for a total of 5 doses
30 minute - 12 hour infusion
30 minute - 12 hour infusion
Ticagrelor 180 mg + 90 mg BID for 5 doses prior to MEDI2452 (PB2452) or Placebo
Experimental: 6: 9000 mg PB2452 or Placebo (Ticagrelor Pre-Trx)
PB2452 Infusion or Placebo - Sodium Chloride with Ticagrelor Oral Tablet: 180 mg+90 mg BID for a total of 5 doses
30 minute - 12 hour infusion
30 minute - 12 hour infusion
Ticagrelor 180 mg + 90 mg BID for 5 doses prior to MEDI2452 (PB2452) or Placebo
Experimental: 7: 18000 mg PB2452 or Placebo (Ticagrelor Pre-Trx)
PB2452 Infusion or Placebo - Sodium Chloride with Ticagrelor Oral Tablet: 180 mg+90 mg BID for a total of 5 doses
30 minute - 12 hour infusion
30 minute - 12 hour infusion
Ticagrelor 180 mg + 90 mg BID for 5 doses prior to MEDI2452 (PB2452) or Placebo
Experimental: 8: Dose TBD mg PB2452 or Placebo (Ticagrelor Pre-Trx)
PB2452 Infusion or Placebo - Sodium Chloride with Ticagrelor Oral Tablet: 180 mg+90 mg BID for 5 doses
30 minute - 12 hour infusion
30 minute - 12 hour infusion
Ticagrelor 180 mg + 90 mg BID for 5 doses prior to MEDI2452 (PB2452) or Placebo
Experimental: 9: Dose TBD mg PB2452 or Placebo (Ticagrelor Pre and Post-Trx)
PB2452 Infusion or Placebo - Sodium Chloride with Ticagrelor Oral Tablet: 180 mg+90 mg BID for 5 doses and 180 mg 24 hours post-dose
30 minute - 12 hour infusion
30 minute - 12 hour infusion
Ticagrelor 180 mg + 90 mg BID for 5 doses prior to MEDI2452 (PB2452) or Placebo and Ticagerlor 180 mg 24 hours following MEDI2452 (PB2452) or Placebo
Experimental: 10: Dose TBD mg PB2452 or Placebo (Ticagrelor Pre-Txt)
PB2452 Infusion or Placebo - Sodium Chloride with Ticagrelor Oral Tablet: 180 mg+90 mg BID for 5 doses
30 minute - 12 hour infusion
30 minute - 12 hour infusion
Ticagrelor 180 mg + 90 mg BID for 5 doses prior to MEDI2452 (PB2452) or Placebo

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Incidence of Clinical Laboratory Abnormalities
Time Frame: 30 Day - Starting day of dosing
30 Day - Starting day of dosing
Vital Sign Measurements - Changes in Diastolic Blood Pressure
Time Frame: 60 days - Starting up to 28 days prior to dosing
60 days - Starting up to 28 days prior to dosing
Vital Sign Measurements - Changes in Systolic Blood Pressure
Time Frame: 60 days - Starting up to 28 days prior to dosing
60 days - Starting up to 28 days prior to dosing
Vital Sign Measurements - Changes in Respiratory Rate
Time Frame: 60 days - Starting up to 28 days prior to dosing
60 days - Starting up to 28 days prior to dosing
Vital Sign Measurements - Changes in Heart Rate
Time Frame: 60 days - Starting up to 28 days prior to dosing
60 days - Starting up to 28 days prior to dosing
12-Lead ECG - Incidence of clinically significant findings
Time Frame: 60 days - Starting up to 28 days prior to dosing
60 days - Starting up to 28 days prior to dosing
Incidence and severity of AEs
Time Frame: 60 days - Starting up to 28 days prior to dosing
60 days - Starting up to 28 days prior to dosing
Vital Sign Measurements - Changes in Oral Body Temperature
Time Frame: 60 days - Starting up to 28 days prior to dosing
60 days - Starting up to 28 days prior to dosing
Cardiac Telemetry - Incidence of clinically significant findings
Time Frame: 3 Days - Starting day 1 day prior to dosing up to 2 days after dosing
3 Days - Starting day 1 day prior to dosing up to 2 days after dosing
Immunogenicity
Time Frame: 60 days - Starting up to 28 days prior to dosing. May be extended in the event that result does not return to baseline in time allotted.
Incidence of Immunogenicity
60 days - Starting up to 28 days prior to dosing. May be extended in the event that result does not return to baseline in time allotted.
Effectiveness of single ascending doses of PB2452 - IPA (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 2, 3, 6, 12, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose.
Inhibition of platelet aggregation (IPA) (max and final extent) induced by 20µM adenosine diphosphate (ADP) at each assessment point
Before dosing and at 0.5, 1, 2, 3, 6, 12, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose.
Effectiveness of single ascending doses of PB2452 - IPAmax (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 2, 3, 6, 12, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose. And at 1, 2, 6, and 12 hours after the Day 2 post-MEDI2452 (PB2452) 6th ticagrelor dose (Cohorts 8 and 9 Only).
Inhibition of maximal platelet aggregation
Before dosing and at 0.5, 1, 2, 3, 6, 12, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose. And at 1, 2, 6, and 12 hours after the Day 2 post-MEDI2452 (PB2452) 6th ticagrelor dose (Cohorts 8 and 9 Only).
Effectiveness of single ascending doses of PB2452 - IPAmax time (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 2, 3, 6, 12, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose.
Time to IPAmax
Before dosing and at 0.5, 1, 2, 3, 6, 12, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose.
Effectiveness of single ascending doses of PB2452 - IPA (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 16, 20, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose. And at 1, 2, 6, and 12 hours after the Day 2 post-MEDI2452 (PB2452) 6th ticagrelor dose (if required).
Inhibition of platelet aggregation (IPA) (max and final extent) induced by 20µM adenosine diphosphate (ADP) at each assessment point
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 16, 20, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose. And at 1, 2, 6, and 12 hours after the Day 2 post-MEDI2452 (PB2452) 6th ticagrelor dose (if required).
Effectiveness of single ascending doses of PB2452 - IPAmax (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 16, 20, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose. And at 1, 2, 6, and 12 hours after the Day 2 post-MEDI2452 (PB2452) 6th ticagrelor dose (if required).
Inhibition of maximal platelet aggregation
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 16, 20, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose. And at 1, 2, 6, and 12 hours after the Day 2 post-MEDI2452 (PB2452) 6th ticagrelor dose (if required).
Effectiveness of single ascending doses of PB2452 - IPAmax time (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 16, 20, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose. And at 1, 2, 6, and 12 hours after the Day 2 post-MEDI2452 (PB2452) 6th ticagrelor dose (if required).
Time to IPAmax
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 16, 20, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose. And at 1, 2, 6, and 12 hours after the Day 2 post-MEDI2452 (PB2452) 6th ticagrelor dose (if required).

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
PB2452 Pharmacokinetic profile - (AUC) (Cohort 1-6)
Time Frame: Before dosing and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours, and at 7 and 28 days after PB2452 infusion
Area under the plasma concentration versus time curve from time 0 to the time of the last quantifiable concentration (AUC0-t)
Before dosing and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours, and at 7 and 28 days after PB2452 infusion
PB2452 Pharmacokinetic profile - (AUC) (Cohort 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 8.25, 8.5, 9, 10, 11, 12, 16, 20, 24, 32, and 48 hours, and at 7 and 28 days after PB2452 infusion
Area under the plasma concentration versus time curve from time 0 to the time of the last quantifiable concentration (AUC0-t)
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 8.25, 8.5, 9, 10, 11, 12, 16, 20, 24, 32, and 48 hours, and at 7 and 28 days after PB2452 infusion
PB2452 Pharmacokinetic profile - Cmax (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours, and at 7 and 28 days after PB2452 infusion
Observed maximum plasma concentration
Before dosing and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours, and at 7 and 28 days after PB2452 infusion
PB2452 Pharmacokinetic profile - Cmax (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 8.25, 8.5, 9, 10, 11, 12, 16, 20, 24, 32, and 48 hours, and at 7 and 28 days after PB2452 infusion
Observed maximum plasma concentration
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 8.25, 8.5, 9, 10, 11, 12, 16, 20, 24, 32, and 48 hours, and at 7 and 28 days after PB2452 infusion
PB2452 Pharmacokinetic profile - Tmax (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours, and at 7 and 28 days after PB2452 infusion
Time to reach the observed maximum plasma concentration
Before dosing and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours, and at 7 and 28 days after PB2452 infusion
PB2452 Pharmacokinetic profile - Tmax (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 8.25, 8.5, 9, 10, 11, 12, 16, 20, 24, 32, and 48 hours, and at 7 and 28 days after PB2452 infusion
Time to reach the observed maximum plasma concentration
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 8.25, 8.5, 9, 10, 11, 12, 16, 20, 24, 32, and 48 hours, and at 7 and 28 days after PB2452 infusion
PB2452 Pharmacokinetic profile - AUC0-inf (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours, and at 7 and 28 days after PB2452 infusion
AUC from time 0 extrapolated to infinity if data permit)
Before dosing and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours, and at 7 and 28 days after PB2452 infusion
PB2452 Pharmacokinetic profile - AUC0-inf (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 8.25, 8.5, 9, 10, 11, 12, 16, 20, 24, 32, and 48 hours, and at 7 and 28 days after PB2452 infusion
AUC from time 0 extrapolated to infinity if data permit)
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 8.25, 8.5, 9, 10, 11, 12, 16, 20, 24, 32, and 48 hours, and at 7 and 28 days after PB2452 infusion
PB2452 Pharmacokinetic profile - t½ (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours, and at 7 and 28 days after PB2452 infusion
Terminal elimination half-life (if data permit)
Before dosing and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours, and at 7 and 28 days after PB2452 infusion
PB2452 Pharmacokinetic profile - t½ (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 8.25, 8.5, 9, 10, 11, 12, 16, 20, 24, 32, and 48 hours, and at 7 and 28 days after PB2452 infusion
Terminal elimination half-life (if data permit)
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 8.25, 8.5, 9, 10, 11, 12, 16, 20, 24, 32, and 48 hours, and at 7 and 28 days after PB2452 infusion
PB2452 Pharmacokinetic profile - CL (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours, and at 7 and 28 days after PB2452 infusion
Apparent clearance (if data permit)
Before dosing and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, and 72 hours, and at 7 and 28 days after PB2452 infusion
PB2452 Pharmacokinetic profile - CL (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 8.25, 8.5, 9, 10, 11, 12, 16, 20, 24, 32, and 48 hours, and at 7 and 28 days after PB2452 infusion
Apparent clearance (if data permit)
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 4, 6, 8, 8.25, 8.5, 9, 10, 11, 12, 16, 20, 24, 32, and 48 hours, and at 7 and 28 days after PB2452 infusion
Ticagrelor and Ticagrelor Active Metabolite (TAM) Pharmacokinetic profile - Cmax (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 2, 3, 6, 12, and 24 hours after PB2452 infusion and 5th ticagrelor dose.
Observed maximum plasma concentration
Before dosing and at 0.5, 1, 2, 3, 6, 12, and 24 hours after PB2452 infusion and 5th ticagrelor dose.
Ticagrelor and Ticagrelor Active Metabolite (TAM) Pharmacokinetic profile - Cmax (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 14, 16, 20, 24, 32 and 48 hours after PB2452 infusion and 5th ticagrelor dose. And 0.5, 1, 2, 3, 6, 12, and 24 hours after the Day 2 post-PB2452 6th ticagrelor dose (if received).
Observed maximum plasma concentration
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 14, 16, 20, 24, 32 and 48 hours after PB2452 infusion and 5th ticagrelor dose. And 0.5, 1, 2, 3, 6, 12, and 24 hours after the Day 2 post-PB2452 6th ticagrelor dose (if received).
Ticagrelor and Ticagrelor Active Metabolite (TAM) Pharmacokinetic profile - Tmax (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 2, 3, 6, 12, and 24 hours after PB2452 infusion and 5th ticagrelor dose.
Time to reach the observed maximum plasma concentration
Before dosing and at 0.5, 1, 2, 3, 6, 12, and 24 hours after PB2452 infusion and 5th ticagrelor dose.
Ticagrelor and Ticagrelor Active Metabolite (TAM) Pharmacokinetic profile - Tmax (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 14, 16, 20, 24, 32 and 48 hours after PB2452 infusion and 5th ticagrelor dose. And 0.5, 1, 2, 3, 6, 12, and 24 hours after the Day 2 post-PB2452 6th ticagrelor dose (if received).
Time to reach the observed maximum plasma concentration
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 14, 16, 20, 24, 32 and 48 hours after PB2452 infusion and 5th ticagrelor dose. And 0.5, 1, 2, 3, 6, 12, and 24 hours after the Day 2 post-PB2452 6th ticagrelor dose (if received).
Ticagrelor and Ticagrelor Active Metabolite (TAM) Pharmacokinetic profile - AUC(0-12) (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 2, 3, 6, 12, and 24 hours after PB2452 infusion and 5th ticagrelor dose.
AUC from time 0 to 12 hours after dosing
Before dosing and at 0.5, 1, 2, 3, 6, 12, and 24 hours after PB2452 infusion and 5th ticagrelor dose.
Ticagrelor and Ticagrelor Active Metabolite (TAM) Pharmacokinetic profile - AUC(0-12) (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 14, 16, 20, 24, 32 and 48 hours after PB2452 infusion and 5th ticagrelor dose. And 0.5, 1, 2, 3, 6, 12, and 24 hours after the Day 2 post-PB2452 6th ticagrelor dose (if received).
AUC from time 0 to 12 hours after dosing
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 14, 16, 20, 24, 32 and 48 hours after PB2452 infusion and 5th ticagrelor dose. And 0.5, 1, 2, 3, 6, 12, and 24 hours after the Day 2 post-PB2452 6th ticagrelor dose (if received).
Ticagrelor and Ticagrelor Active Metabolite (TAM) Pharmacokinetic profile - AUC(0-24) (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 2, 3, 6, 12, and 24 hours after PB2452 infusion and 5th ticagrelor dose.
AUC from time 0 to 24 hours after dosing
Before dosing and at 0.5, 1, 2, 3, 6, 12, and 24 hours after PB2452 infusion and 5th ticagrelor dose.
Ticagrelor and Ticagrelor Active Metabolite (TAM) Pharmacokinetic profile - AUC(0-24) (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 14, 16, 20, 24, 32 and 48 hours after PB2452 infusion and 5th ticagrelor dose. And 0.5, 1, 2, 3, 6, 12, and 24 hours after the Day 2 post-PB2452 6th ticagrelor dose (if received).
AUC from time 0 to 24 hours after dosing
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 14, 16, 20, 24, 32 and 48 hours after PB2452 infusion and 5th ticagrelor dose. And 0.5, 1, 2, 3, 6, 12, and 24 hours after the Day 2 post-PB2452 6th ticagrelor dose (if received).
Ticagrelor and Ticagrelor Active Metabolite (TAM) Pharmacokinetic profile - AUC0-inf (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 2, 3, 6, 12, and 24 hours after PB2452 infusion and 5th ticagrelor dose.
AUC from time 0 extrapolated to infinity if data permit)
Before dosing and at 0.5, 1, 2, 3, 6, 12, and 24 hours after PB2452 infusion and 5th ticagrelor dose.
Ticagrelor and Ticagrelor Active Metabolite (TAM) Pharmacokinetic profile - AUC0-inf (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 14, 16, 20, 24, 32 and 48 hours after PB2452 infusion and 5th ticagrelor dose. And 0.5, 1, 2, 3, 6, 12, and 24 hours after the Day 2 post-PB2452 6th ticagrelor dose (if received).
AUC from time 0 extrapolated to infinity if data permit)
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 14, 16, 20, 24, 32 and 48 hours after PB2452 infusion and 5th ticagrelor dose. And 0.5, 1, 2, 3, 6, 12, and 24 hours after the Day 2 post-PB2452 6th ticagrelor dose (if received).
Ticagrelor and Ticagrelor Active Metabolite (TAM) Pharmacokinetic profile - t½ (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 2, 3, 6, 12, and 24 hours after PB2452 infusion and 5th ticagrelor dose.
Terminal elimination half-life (if data permit)
Before dosing and at 0.5, 1, 2, 3, 6, 12, and 24 hours after PB2452 infusion and 5th ticagrelor dose.
Ticagrelor and Ticagrelor Active Metabolite (TAM) Pharmacokinetic profile - t½ (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 14, 16, 20, 24, 32 and 48 hours after PB2452 infusion and 5th ticagrelor dose. And 0.5, 1, 2, 3, 6, 12, and 24 hours after the Day 2 post-PB2452 6th ticagrelor dose (if received).
Terminal elimination half-life (if data permit)
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 14, 16, 20, 24, 32 and 48 hours after PB2452 infusion and 5th ticagrelor dose. And 0.5, 1, 2, 3, 6, 12, and 24 hours after the Day 2 post-PB2452 6th ticagrelor dose (if received).
Ticagrelor Active Metabolite (TAM) Pharmacokinetic profile - Cmax ratio (metabolite:parent) (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 2, 3, 6, 12, and 24 hours after PB2452 infusion.
Before dosing and at 0.5, 1, 2, 3, 6, 12, and 24 hours after PB2452 infusion.
Ticagrelor Active Metabolite (TAM) Pharmacokinetic profile - Cmax ratio (metabolite:parent) (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 14, 16, 20, 24, 32 and 48 hours after PB2452 infusion and 5th ticagrelor dose. And 0.5, 1, 2, 3, 6, 12, and 24 hours after the Day 2 post-PB2452 6th ticagrelor dose (if received).
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 14, 16, 20, 24, 32 and 48 hours after PB2452 infusion and 5th ticagrelor dose. And 0.5, 1, 2, 3, 6, 12, and 24 hours after the Day 2 post-PB2452 6th ticagrelor dose (if received).
Ticagrelor Active Metabolite (TAM) Pharmacokinetic profile - AUC0-24 ratio (metabolite:parent) (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 2, 3, 6, 12, and 24 hours after PB2452 infusion.
Before dosing and at 0.5, 1, 2, 3, 6, 12, and 24 hours after PB2452 infusion.
Ticagrelor Active Metabolite (TAM) Pharmacokinetic profile - AUC0-24 ratio (metabolite:parent) (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 14, 16, 20, 24, 32 and 48 hours after PB2452 infusion and 5th ticagrelor dose. And 0.5, 1, 2, 3, 6, 12, and 24 hours after the Day 2 post-PB2452 6th ticagrelor dose (if received).
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 14, 16, 20, 24, 32 and 48 hours after PB2452 infusion and 5th ticagrelor dose. And 0.5, 1, 2, 3, 6, 12, and 24 hours after the Day 2 post-PB2452 6th ticagrelor dose (if received).
Ticagrelor and Ticagrelor Active Metabolite (TAM) Urine Pharmacokinetic profile - Ae (Cohorts 1-6)
Time Frame: Before dosing and 0 to 6, 6 to 12, and 12 to 24 hours after the initiation of the PB2452 infusion and 5th ticagrelor dose.
Total amount of drug excreted in urine
Before dosing and 0 to 6, 6 to 12, and 12 to 24 hours after the initiation of the PB2452 infusion and 5th ticagrelor dose.
Ticagrelor and Ticagrelor Active Metabolite (TAM) Urine Pharmacokinetic profile - Ae (Cohorts 7-10)
Time Frame: Before dosing and 0 to 6, 6 to 12, and 12 to 24 hours after the initiation of the PB2452 infusion and 5th ticagrelor dose.
Total amount of drug excreted in urine
Before dosing and 0 to 6, 6 to 12, and 12 to 24 hours after the initiation of the PB2452 infusion and 5th ticagrelor dose.
Ticagrelor and Ticagrelor Active Metabolite (TAM) Urine Pharmacokinetic profile - Aet1-t2
Time Frame: Before dosing and 0 to 6, 6 to 12, and 12 to 24 hours after the initiation of the PB2452 infusion and 5th ticagrelor dose.
Ae from time t1 to t2 hours where the values of t1 to t2 are 0 to 6, 6 to 12, and 12 to 24
Before dosing and 0 to 6, 6 to 12, and 12 to 24 hours after the initiation of the PB2452 infusion and 5th ticagrelor dose.
Ticagrelor and Ticagrelor Active Metabolite (TAM) Urine Pharmacokinetic profile - Fe
Time Frame: Before dosing and 0 to 6, 6 to 12, and 12 to 24 hours after the initiation of the PB2452 infusion and 5th ticagrelor dose.
Fraction excreted in urine from 1 to 24 hours after dosing
Before dosing and 0 to 6, 6 to 12, and 12 to 24 hours after the initiation of the PB2452 infusion and 5th ticagrelor dose.
Ticagrelor and Ticagrelor Active Metabolite (TAM) Urine Pharmacokinetic profile - CLr
Time Frame: Before dosing and 0 to 6, 6 to 12, and 12 to 24 hours after the initiation of the PB2452 infusion and 5th ticagrelor dose.
Renal clearance
Before dosing and 0 to 6, 6 to 12, and 12 to 24 hours after the initiation of the PB2452 infusion and 5th ticagrelor dose.
Effectiveness of single ascending doses of PB2452 - PRU at each assessment point (Cohorts 1-6)
Time Frame: Before dosing and at 0.5, 1, 2, 3, 6, 12, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose.
P2Y12 Reaction Units with VerifyNow P2Y12 Assay
Before dosing and at 0.5, 1, 2, 3, 6, 12, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose.
Effectiveness of single ascending doses of PB2452 - PRU at each assessment point (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 16, 20, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose. And at 1, 2, 6, and 12 hours after the Day 2 post-MEDI2452 (PB2452) 6th ticagrelor dose (if required).
P2Y12 Reaction Units with VerifyNow P2Y12 Assay
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 16, 20, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose. And at 1, 2, 6, and 12 hours after the Day 2 post-MEDI2452 (PB2452) 6th ticagrelor dose (if required).
Effectiveness of single ascending doses of PB2452 - P2Y12 Reaction Units with VerifyNow P2Y12 Assay (Cohorts 1-6)
Time Frame: Before dosing and again before dosing and at 0.5, 1, 2, 3, 6, 12, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose.
Before dosing and again before dosing and at 0.5, 1, 2, 3, 6, 12, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose.
Effectiveness of single ascending doses of PB2452 - P2Y12 Reaction Units with VerifyNow P2Y12 Assay (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 16, 20, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose. And at 1, 2, 6, and 12 hours after the Day 2 post-MEDI2452 (PB2452) 6th ticagrelor dose (if required).
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 16, 20, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose. And at 1, 2, 6, and 12 hours after the Day 2 post-MEDI2452 (PB2452) 6th ticagrelor dose (if required).
Effectiveness of single ascending doses of PB2452 - VASP by ELISA (Cohorts 1-6)
Time Frame: Before dosing and again before dosing and at 0.5, 1, 2, 3, 6, 12, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose.
Vasodilator stimulated response by ELISA
Before dosing and again before dosing and at 0.5, 1, 2, 3, 6, 12, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose.
Effectiveness of single ascending doses of PB2452 - VASP by ELISA (Cohorts 7-10)
Time Frame: Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 16, 20, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose. And at 1, 2, 6, and 12 hours after the Day 2 post-MEDI2452 (PB2452) 6th ticagrelor dose (if required).
Vasodilator stimulated response by ELISA
Before dosing and at 5 min, 0.25, 0.5, 1, 2, 3, 6, 8, 10, 12, 16, 20, 24, and 48 hours after PB2452 infusion and 5th ticagrelor dose. And at 1, 2, 6, and 12 hours after the Day 2 post-MEDI2452 (PB2452) 6th ticagrelor dose (if required).

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: LuAnn Bundrant, MD, PPD

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 3, 2018

Primary Completion (Actual)

September 18, 2018

Study Completion (Actual)

September 18, 2018

Study Registration Dates

First Submitted

April 2, 2018

First Submitted That Met QC Criteria

April 9, 2018

First Posted (Actual)

April 10, 2018

Study Record Updates

Last Update Posted (Actual)

February 8, 2019

Last Update Submitted That Met QC Criteria

February 7, 2019

Last Verified

February 1, 2019

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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