MEDI3902 for Prevention of P. Aeruginosa Pneumonia
Conditions
Keywords
MEDI3902, Safety,, Pharmacokinetics,, Healthy Volunteers
Brief summary
This is a Phase 1, randomized, double-blind, placebo-controlled, dose escalation study evaluating the safety and tolerability of a single ascending IV dose of MEDI3902 in healthy adult subjects 18 to 60 years of age.
Detailed description
This is a Phase 1, randomized, double-blind, placebo-controlled, dose escalation study evaluating the safety and tolerability of a single ascending IV dose of MEDI3902 in healthy adult subjects 18 to 60 years of age. Approximately 40 subjects will be enrolled across 4 fixed dose cohorts at 1 study site. This study will last approximately 90 days, constituting a screening period of up to 28 days, 1 day of investigational product administration, and a 60 day safety follow up period.
Interventions
Participants will receive a single IV dose of MEDI3902 infused for a minimum of 13 minutes on Day 1.
Participants will receive a single IV dose of MEDI3902 infused for a minimum of 38 minutes on Day 1.
Participants will receive a single IV dose of MEDI3902 infused for a minimum of 75 minutes on Day 1.
Participants will received a single IV dose of MEDI3902 infused for a minimum of 150 minutes on Day 1.
Participants will receive a single dose of placebo by IV infusion up to a maximum of 12 hours.
Sponsors
Study design
Eligibility
Inclusion criteria
1. Age 18 through 60 years at the time of screening 2. Written informed consent 3. Weight greater than or equal to (\>=) 45 kilogram (kg) and less than or equal to (\<=) 110 kg at screening 4. Healthy by medical history, physical examination, and baseline safety laboratory studies 5. Systolic blood pressure (BP) less than (\<) 140 millimeter of mercury (mmHg) and diastolic BP \< 90 mmHg at screening 6. Electrocardiogram (ECG) without clinically significant abnormalities at screening 7. Able to complete the follow-up period through Day 61 as required by the protocol. 8. Females of childbearing potential who are sexually active with a nonsterilized male partner must have used a highly effective method of contraception for at least 28 days prior to dosing with investigational product and must agree to continue using such precautions through Day 61 of the study.
Exclusion criteria
1. Acute (time-limited) illness, including fever 99.5 degree Fahrenheit (0\^F), on day prior to or day of planned dosing 2. Any drug therapy within 7 days prior to Day 1 (except contraceptives or a single use of acetaminophen, aspirin, antihistamine, or combination over-the-counter (OTC) product that contains acetaminophen with an antihistamine, or OTC non-steroidal anti inflammatory agent at a dose equal to or lower than that recommended on the package). Vitamins and other nutritional supplements that are not newly introduced, ie, have been taken for at least 30 days prior to enrolment, are not exclusionary 3. Blood drawn in excess of a total of 450 mL (1 unit) for any reason within 2 months prior to screening 4. Receipt of immunoglobulin or blood products within 6 months prior to screening 5. Receipt of any investigational product in the preceding 90 days or expected receipt of investigational product during the period of study follow-up, or concurrent participation in another interventional study Receipt of any vaccine within 7 days prior to investigational product dosing or planned receipt within 61 days after investigational product dosing except for influenza vaccine administered at least 28 days after dosing 6. Previous receipt of a mAb 7. Immunodeficiency due to illness, including human immunodeficiency virus (HIV) infection, or due to drugs, including any course of glucocorticoid therapy exceeding 2 weeks of prednisone or equivalent at a dose of 20 mg daily or every other day within 6 months prior to screening. HIV testing must be negative at screening 8. History of allergic disease or reactions likely to be exacerbated by any component of the investigational product 9. Either history of active infection with hepatitis B or C 10. Aspartate aminotransferase (AST), alanine aminotransferase (ALT), or serum creatinine above the upper limit of normal (ULN) or hemoglobin, white blood cell count, or platelet count below the lower limit of normal at screening and in the predose blood sample 11. Pregnant or nursing mother 13\. History of alcohol or drug abuse within the past 2 years.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Number of Participants With Treatment-Emergent Adverse Events (TEAEs) | Day 1 to Day 29 | An adverse event (AE) is any unfavourable and unintended sign, symptom, or disease temporally associated with the use of study drug, whether or not considered related to the study drug. A TEAE is defined as events present at baseline that worsened in intensity after administration of study drug or events absent at baseline that emerged after administration of study drug. |
| Number of Participants With Treatment-Emergent Serious Adverse Events (TESAEs) and Treatment Emergent Adverse Events of Special Interest (TEAESIs) | Day 1 to Day 61 | An AE is any untoward medical occurrence attributed to study drug in a participant who received investigational product. TESAE was an event resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly that occurred after the initial receipt of the study drug. An AESI was one of scientific and medical interest specific to understanding of study product and may have required close monitoring and rapid communication by investigator to the sponsor. TEAESIs were collected from the time of dosing through Day 61 after the last dose of study drug and included anaphylaxis, other serious allergic reactions, infusion-related reactions, hepatic function abnormalities and immune complex disease. |
| Number of Participants With Abnormal Clinical Laboratory Parameters Reported as Treatment-Emergent Adverse Events (TEAEs) | Day 1 to Day 29 | Any medically significant change in laboratory evaluations were recorded as adverse events. Following parameters were analyzed for laboratory examination: Hematology, serum chemistry, liver function, serum electrolytes and urinalysis. |
| Number of Participants With Abnormal Vital Signs Reported as Treatment-Emergent Adverse Events (TEAEs) | Day 1 to Day 7 | Vital signs measurements included temperature, blood pressure (systolic and diastolic), pulse rate and respiratory rate. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| MEDI3902 Serum Clearance (CL) of MEDI3902 | Pre-dose (24 hours prior to dose); at the end of the infusion, and 8 hours post infusion, and Days 2, 3, 7, 15, 22, 29, 43, and 61 post-dose | Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. The PK parameter CL was estimated based on the serum concentrations of MEDI3902. Non-compartmental PK data analysis was performed to estimate the serum PK parameters of MEDI3902. |
| Area Under the Serum Concentration-time Curve From Zero to Infinity (AUC [0-infinity]) | Pre-dose (24 hours prior to dose); at the end of the infusion, and 8 hours post infusion, and Days 2, 3, 7, 15, 22, 29, 43, and 61 post-dose | Area under the serum concentration versus time curve (AUC) from time zero (predose) to extrapolated infinite time (0 - infinity). The PK parameter AUC (0-inf) was estimated based on the serum concentrations of MEDI3902. Non-compartmental PK data analysis was performed to estimate the serum PK parameters of MEDI3902. |
| Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Days 1 (pre-dose), 15, 29, and 61 | Blood samples were collected to evaluate the antidrug antibody responses to MEDI3902 in serum. The number of participants positive for serum antibodies to MEDI3902 were presented. |
| Maximum Observed Serum Concentration (Cmax) for MEDI3902 After First Dose | Pre-dose (24 hours prior to dose); at the end of the infusion, and 8 hours post infusion, and Days 2, 3, 7, 15, 22, 29, 43, and 61 post-dose | The PK parameter Cmax was estimated based on the serum concentrations of MEDI3902. Non-compartmental PK data analysis was performed to estimate the serum PK parameters of MEDI3902. |
| Terminal Phase Elimination Half-life (t1/2) | Pre-dose (24 hours prior to dose); at the end of the infusion, and 8 hours post infusion, and Days 2, 3, 7, 15, 22, 29, 43, and 61 post-dose | The t1/2 is the time measured for the serum drug concentration of MEDI3902 to decrease by one half. The PK parameter t1/2 was estimated based on the serum concentrations of MEDI3902. Non-compartmental PK data analysis was performed to estimate the serum PK parameters of MEDI3902. |
| Volume of Distribution at Steady State (Vss) | Pre-dose (24 hours prior to dose); at the end of the infusion, and 8 hours post infusion, and Days 2, 3, 7, 15, 22, 29, 43, and 61 post-dose | Volume of distribution is defined as the theoretical volume in which the total amount of drug uniformly distributed to produce the desired serum concentration of a drug. The PK parameter Vss was estimated based on the serum concentrations of MEDI3902. Non-compartmental PK data analysis was performed to estimate the serum PK parameters of MEDI3902. |
Countries
United States
Participant flow
Pre-assignment details
A total of 131 participants were screened, of which 75 did not meet eligibility criteria and were considered as screen failures; and the remaining 56 participants were randomized into the study.
Participants by arm
| Arm | Count |
|---|---|
| Placebo Participants received a single dose of placebo by IV infusion up to a maximum of 12 hours. | 14 |
| MEDI3902 - Dose 1 Participants received a single IV dose of MEDI3902 infused for a minimum of 13 minutes on Day 1. | 3 |
| MEDI3902 - Dose 2 Participants received a single IV dose of MEDI3902 infused for a minimum of 38 minutes on Day 1. | 15 |
| MEDI3902 - Dose 3 Participants received a single IV dose of MEDI3902 infused for a minimum of 75 minutes on Day 1. | 15 |
| MEDI3902 - Dose 4 Participants received a single IV dose of MEDI3902 infused for a minimum of 150 minutes on Day 1. | 9 |
| Total | 56 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 | FG002 | FG003 | FG004 |
|---|---|---|---|---|---|---|
| Overall Study | Lost to Follow-up | 0 | 1 | 0 | 0 | 0 |
Baseline characteristics
| Characteristic | Placebo | MEDI3902 - Dose 1 | MEDI3902 - Dose 2 | MEDI3902 - Dose 3 | MEDI3902 - Dose 4 | Total |
|---|---|---|---|---|---|---|
| Age, Continuous | 41.2 Years STANDARD_DEVIATION 10.9 | 34.0 Years STANDARD_DEVIATION 9.5 | 40.9 Years STANDARD_DEVIATION 11.8 | 40.3 Years STANDARD_DEVIATION 12.4 | 39.8 Years STANDARD_DEVIATION 13.1 | 40.3 Years STANDARD_DEVIATION 11.6 |
| Sex: Female, Male Female | 9 Participants | 3 Participants | 9 Participants | 9 Participants | 6 Participants | 36 Participants |
| Sex: Female, Male Male | 5 Participants | 0 Participants | 6 Participants | 6 Participants | 3 Participants | 20 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk | EG003 affected / at risk | EG004 affected / at risk |
|---|---|---|---|---|---|
| deaths Total, all-cause mortality | 0 / 14 | 0 / 3 | 0 / 15 | 0 / 15 | 0 / 9 |
| other Total, other adverse events | 4 / 14 | 2 / 3 | 6 / 15 | 8 / 15 | 6 / 9 |
| serious Total, serious adverse events | 0 / 14 | 0 / 3 | 0 / 15 | 0 / 15 | 0 / 9 |
Outcome results
Number of Participants With Abnormal Clinical Laboratory Parameters Reported as Treatment-Emergent Adverse Events (TEAEs)
Any medically significant change in laboratory evaluations were recorded as adverse events. Following parameters were analyzed for laboratory examination: Hematology, serum chemistry, liver function, serum electrolytes and urinalysis.
Time frame: Day 1 to Day 29
Population: Subjects who had received any dose of study drug were included in the as-treated population and subjects were analyzed according to the treatment they actually received.
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Placebo | Number of Participants With Abnormal Clinical Laboratory Parameters Reported as Treatment-Emergent Adverse Events (TEAEs) | 0 Participants |
| MEDI3902 - Dose 1 | Number of Participants With Abnormal Clinical Laboratory Parameters Reported as Treatment-Emergent Adverse Events (TEAEs) | 0 Participants |
| MEDI3902 - Dose 2 | Number of Participants With Abnormal Clinical Laboratory Parameters Reported as Treatment-Emergent Adverse Events (TEAEs) | 0 Participants |
| MEDI3902 - Dose 3 | Number of Participants With Abnormal Clinical Laboratory Parameters Reported as Treatment-Emergent Adverse Events (TEAEs) | 0 Participants |
| MEDI3902 - Dose 4 | Number of Participants With Abnormal Clinical Laboratory Parameters Reported as Treatment-Emergent Adverse Events (TEAEs) | 0 Participants |
Number of Participants With Abnormal Vital Signs Reported as Treatment-Emergent Adverse Events (TEAEs)
Vital signs measurements included temperature, blood pressure (systolic and diastolic), pulse rate and respiratory rate.
Time frame: Day 1 to Day 7
Population: Subjects who had received any dose of study drug were included in the as-treated population and subjects were analyzed according to the treatment they actually received.
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Placebo | Number of Participants With Abnormal Vital Signs Reported as Treatment-Emergent Adverse Events (TEAEs) | 0 Participants |
| MEDI3902 - Dose 1 | Number of Participants With Abnormal Vital Signs Reported as Treatment-Emergent Adverse Events (TEAEs) | 0 Participants |
| MEDI3902 - Dose 2 | Number of Participants With Abnormal Vital Signs Reported as Treatment-Emergent Adverse Events (TEAEs) | 0 Participants |
| MEDI3902 - Dose 3 | Number of Participants With Abnormal Vital Signs Reported as Treatment-Emergent Adverse Events (TEAEs) | 0 Participants |
| MEDI3902 - Dose 4 | Number of Participants With Abnormal Vital Signs Reported as Treatment-Emergent Adverse Events (TEAEs) | 0 Participants |
Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
An adverse event (AE) is any unfavourable and unintended sign, symptom, or disease temporally associated with the use of study drug, whether or not considered related to the study drug. A TEAE is defined as events present at baseline that worsened in intensity after administration of study drug or events absent at baseline that emerged after administration of study drug.
Time frame: Day 1 to Day 29
Population: Subjects who had received any dose of study drug were included in the as-treated population and subjects were analyzed according to the treatment they actually received.
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Placebo | Number of Participants With Treatment-Emergent Adverse Events (TEAEs) | 4 Participants |
| MEDI3902 - Dose 1 | Number of Participants With Treatment-Emergent Adverse Events (TEAEs) | 2 Participants |
| MEDI3902 - Dose 2 | Number of Participants With Treatment-Emergent Adverse Events (TEAEs) | 6 Participants |
| MEDI3902 - Dose 3 | Number of Participants With Treatment-Emergent Adverse Events (TEAEs) | 8 Participants |
| MEDI3902 - Dose 4 | Number of Participants With Treatment-Emergent Adverse Events (TEAEs) | 6 Participants |
Number of Participants With Treatment-Emergent Serious Adverse Events (TESAEs) and Treatment Emergent Adverse Events of Special Interest (TEAESIs)
An AE is any untoward medical occurrence attributed to study drug in a participant who received investigational product. TESAE was an event resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly that occurred after the initial receipt of the study drug. An AESI was one of scientific and medical interest specific to understanding of study product and may have required close monitoring and rapid communication by investigator to the sponsor. TEAESIs were collected from the time of dosing through Day 61 after the last dose of study drug and included anaphylaxis, other serious allergic reactions, infusion-related reactions, hepatic function abnormalities and immune complex disease.
Time frame: Day 1 to Day 61
Population: Subjects who had received any dose of study drug were included in the as-treated population and subjects were analyzed according to the treatment they actually received.
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Placebo | Number of Participants With Treatment-Emergent Serious Adverse Events (TESAEs) and Treatment Emergent Adverse Events of Special Interest (TEAESIs) | TEAESIs | 0 Participants |
| Placebo | Number of Participants With Treatment-Emergent Serious Adverse Events (TESAEs) and Treatment Emergent Adverse Events of Special Interest (TEAESIs) | TESAEs | 0 Participants |
| MEDI3902 - Dose 1 | Number of Participants With Treatment-Emergent Serious Adverse Events (TESAEs) and Treatment Emergent Adverse Events of Special Interest (TEAESIs) | TESAEs | 0 Participants |
| MEDI3902 - Dose 1 | Number of Participants With Treatment-Emergent Serious Adverse Events (TESAEs) and Treatment Emergent Adverse Events of Special Interest (TEAESIs) | TEAESIs | 0 Participants |
| MEDI3902 - Dose 2 | Number of Participants With Treatment-Emergent Serious Adverse Events (TESAEs) and Treatment Emergent Adverse Events of Special Interest (TEAESIs) | TEAESIs | 4 Participants |
| MEDI3902 - Dose 2 | Number of Participants With Treatment-Emergent Serious Adverse Events (TESAEs) and Treatment Emergent Adverse Events of Special Interest (TEAESIs) | TESAEs | 0 Participants |
| MEDI3902 - Dose 3 | Number of Participants With Treatment-Emergent Serious Adverse Events (TESAEs) and Treatment Emergent Adverse Events of Special Interest (TEAESIs) | TEAESIs | 6 Participants |
| MEDI3902 - Dose 3 | Number of Participants With Treatment-Emergent Serious Adverse Events (TESAEs) and Treatment Emergent Adverse Events of Special Interest (TEAESIs) | TESAEs | 0 Participants |
| MEDI3902 - Dose 4 | Number of Participants With Treatment-Emergent Serious Adverse Events (TESAEs) and Treatment Emergent Adverse Events of Special Interest (TEAESIs) | TESAEs | 0 Participants |
| MEDI3902 - Dose 4 | Number of Participants With Treatment-Emergent Serious Adverse Events (TESAEs) and Treatment Emergent Adverse Events of Special Interest (TEAESIs) | TEAESIs | 5 Participants |
Area Under the Serum Concentration-time Curve From Zero to Infinity (AUC [0-infinity])
Area under the serum concentration versus time curve (AUC) from time zero (predose) to extrapolated infinite time (0 - infinity). The PK parameter AUC (0-inf) was estimated based on the serum concentrations of MEDI3902. Non-compartmental PK data analysis was performed to estimate the serum PK parameters of MEDI3902.
Time frame: Pre-dose (24 hours prior to dose); at the end of the infusion, and 8 hours post infusion, and Days 2, 3, 7, 15, 22, 29, 43, and 61 post-dose
Population: Subjects who had received any dose of study drug were included in the as-treated population and subjects were analyzed according to the treatment they actually received.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Placebo | Area Under the Serum Concentration-time Curve From Zero to Infinity (AUC [0-infinity]) | 694 micrograms*day/milliliters | Standard Deviation 133 |
| MEDI3902 - Dose 1 | Area Under the Serum Concentration-time Curve From Zero to Infinity (AUC [0-infinity]) | 2149 micrograms*day/milliliters | Standard Deviation 625 |
| MEDI3902 - Dose 2 | Area Under the Serum Concentration-time Curve From Zero to Infinity (AUC [0-infinity]) | 4246 micrograms*day/milliliters | Standard Deviation 1117 |
| MEDI3902 - Dose 3 | Area Under the Serum Concentration-time Curve From Zero to Infinity (AUC [0-infinity]) | 6540 micrograms*day/milliliters | Standard Deviation 1817 |
Maximum Observed Serum Concentration (Cmax) for MEDI3902 After First Dose
The PK parameter Cmax was estimated based on the serum concentrations of MEDI3902. Non-compartmental PK data analysis was performed to estimate the serum PK parameters of MEDI3902.
Time frame: Pre-dose (24 hours prior to dose); at the end of the infusion, and 8 hours post infusion, and Days 2, 3, 7, 15, 22, 29, 43, and 61 post-dose
Population: Subjects who had received any dose of study drug were included in the as-treated population and subjects were analyzed according to the treatment they actually received.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Placebo | Maximum Observed Serum Concentration (Cmax) for MEDI3902 After First Dose | 100 micrograms/milliliter | Standard Deviation 6 |
| MEDI3902 - Dose 1 | Maximum Observed Serum Concentration (Cmax) for MEDI3902 After First Dose | 207 micrograms/milliliter | Standard Deviation 36 |
| MEDI3902 - Dose 2 | Maximum Observed Serum Concentration (Cmax) for MEDI3902 After First Dose | 468 micrograms/milliliter | Standard Deviation 134 |
| MEDI3902 - Dose 3 | Maximum Observed Serum Concentration (Cmax) for MEDI3902 After First Dose | 838 micrograms/milliliter | Standard Deviation 181 |
MEDI3902 Serum Clearance (CL) of MEDI3902
Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. The PK parameter CL was estimated based on the serum concentrations of MEDI3902. Non-compartmental PK data analysis was performed to estimate the serum PK parameters of MEDI3902.
Time frame: Pre-dose (24 hours prior to dose); at the end of the infusion, and 8 hours post infusion, and Days 2, 3, 7, 15, 22, 29, 43, and 61 post-dose
Population: Subjects who had received any dose of study drug were included in the as-treated population and subjects were analyzed according to the treatment they actually received.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Placebo | MEDI3902 Serum Clearance (CL) of MEDI3902 | 371 milliliters/day | Standard Deviation 79 |
| MEDI3902 - Dose 1 | MEDI3902 Serum Clearance (CL) of MEDI3902 | 371 milliliters/day | Standard Deviation 101 |
| MEDI3902 - Dose 2 | MEDI3902 Serum Clearance (CL) of MEDI3902 | 373 milliliters/day | Standard Deviation 83 |
| MEDI3902 - Dose 3 | MEDI3902 Serum Clearance (CL) of MEDI3902 | 489 milliliters/day | Standard Deviation 128 |
Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902
Blood samples were collected to evaluate the antidrug antibody responses to MEDI3902 in serum. The number of participants positive for serum antibodies to MEDI3902 were presented.
Time frame: Days 1 (pre-dose), 15, 29, and 61
Population: Subjects who had received any dose of study drug were included in the as-treated population and subjects were analyzed according to the treatment they actually received.
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Placebo | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Day 61 | 1 Participants |
| Placebo | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Pre-dose (Baseline) | 0 Participants |
| Placebo | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Day 29 | 0 Participants |
| Placebo | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Day 15 | 0 Participants |
| MEDI3902 - Dose 1 | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Day 29 | 0 Participants |
| MEDI3902 - Dose 1 | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Pre-dose (Baseline) | 1 Participants |
| MEDI3902 - Dose 1 | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Day 61 | 0 Participants |
| MEDI3902 - Dose 1 | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Day 15 | 0 Participants |
| MEDI3902 - Dose 2 | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Day 15 | 0 Participants |
| MEDI3902 - Dose 2 | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Day 61 | 0 Participants |
| MEDI3902 - Dose 2 | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Pre-dose (Baseline) | 0 Participants |
| MEDI3902 - Dose 2 | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Day 29 | 0 Participants |
| MEDI3902 - Dose 3 | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Pre-dose (Baseline) | 1 Participants |
| MEDI3902 - Dose 3 | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Day 61 | 0 Participants |
| MEDI3902 - Dose 3 | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Day 29 | 0 Participants |
| MEDI3902 - Dose 3 | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Day 15 | 0 Participants |
| MEDI3902 - Dose 4 | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Day 61 | 1 Participants |
| MEDI3902 - Dose 4 | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Pre-dose (Baseline) | 0 Participants |
| MEDI3902 - Dose 4 | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Day 29 | 0 Participants |
| MEDI3902 - Dose 4 | Number of Participants With Positive Anti-drug Antibody (ADA) to MEDI3902 | Day 15 | 0 Participants |
Terminal Phase Elimination Half-life (t1/2)
The t1/2 is the time measured for the serum drug concentration of MEDI3902 to decrease by one half. The PK parameter t1/2 was estimated based on the serum concentrations of MEDI3902. Non-compartmental PK data analysis was performed to estimate the serum PK parameters of MEDI3902.
Time frame: Pre-dose (24 hours prior to dose); at the end of the infusion, and 8 hours post infusion, and Days 2, 3, 7, 15, 22, 29, 43, and 61 post-dose
Population: Subjects who had received any dose of study drug were included in the as-treated population and subjects were analyzed according to the treatment they actually received.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Placebo | Terminal Phase Elimination Half-life (t1/2) | 7.2 Days | Standard Deviation 0.9 |
| MEDI3902 - Dose 1 | Terminal Phase Elimination Half-life (t1/2) | 9.0 Days | Standard Deviation 2.1 |
| MEDI3902 - Dose 2 | Terminal Phase Elimination Half-life (t1/2) | 9.4 Days | Standard Deviation 1.6 |
| MEDI3902 - Dose 3 | Terminal Phase Elimination Half-life (t1/2) | 8.4 Days | Standard Deviation 0.8 |
Volume of Distribution at Steady State (Vss)
Volume of distribution is defined as the theoretical volume in which the total amount of drug uniformly distributed to produce the desired serum concentration of a drug. The PK parameter Vss was estimated based on the serum concentrations of MEDI3902. Non-compartmental PK data analysis was performed to estimate the serum PK parameters of MEDI3902.
Time frame: Pre-dose (24 hours prior to dose); at the end of the infusion, and 8 hours post infusion, and Days 2, 3, 7, 15, 22, 29, 43, and 61 post-dose
Population: Subjects who had received any dose of study drug were included in the as-treated population and subjects were analyzed according to the treatment they actually received.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Placebo | Volume of Distribution at Steady State (Vss) | 3412 milliliters | Standard Deviation 107 |
| MEDI3902 - Dose 1 | Volume of Distribution at Steady State (Vss) | 4022 milliliters | Standard Deviation 577 |
| MEDI3902 - Dose 2 | Volume of Distribution at Steady State (Vss) | 4326 milliliters | Standard Deviation 1246 |
| MEDI3902 - Dose 3 | Volume of Distribution at Steady State (Vss) | 4909 milliliters | Standard Deviation 1022 |