To evaluate the PK profile of a single-dose of 140 mg subcutaneous (SC) administration of MEDI9929 (AMG 157) in adolescent subjects with mild to moderate asthma.
The primary objective is to evaluate the PK profile of a single-dose of 140 mg subcutaneous (SC) administration of MEDI9929 (AMG 157) in adolescent subjects with mild to moderate asthma. The secondary objective is to evaluate the safety and tolerability of MEDI9929 and to evaluate the immunogenicity of MEDI9929 (AMG 157). The exploratory objective is to evaluate the effect of MEDI9929 (AMG 157) on pulmonary function
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
OTHER
Masking
NONE
Enrollment
21
On Day 1, two MEDI9929 subcutaneous injection of 70 mg each were given into the anterior aspect of one thigh immediately followed by the second injection into the anterior aspect of the contralateral thigh to make the required dose of 140 mg in participants of 12 to 17 years of age.
Research Site
Kielce, Poland
Research Site
Lodz, Poland
Research Site
Wroclaw, Poland
Research Site
Wroclaw, Poland
Area Under the Concentration-time Curve From Zero to Infinity (AUC [0-infinity])
The pharmacokinetic (PK) parameter AUC (0 to infinity) was estimated based on the serum concentrations of MEDI9929. Serum concentrations of MEDI9929 were measured by enzyme-linked immunosorbent assay.
Time frame: Predose on Day 1 and Day 2, 4, 7, 11, 15, 22, 29, 43, 57 and 85 post-dose.
Area Under the Concentration-Time Curve From Zero to Last Observation (AUC [0-t])
The PK parameter AUC (0-t) was estimated based on the serum concentrations of MEDI9929. Serum concentrations of MEDI9929 were measured by enzyme-linked immunosorbent assay.
Time frame: Predose on Day 1 and Day 2, 4, 7, 11, 15, 22, 29, 43, 57 and 85 post-dose.
Dose-normalized AUC (0-infinity) (AUC [0 Infinity]/D)
The AUC (0-infinity)/D is the area under concentration-time curve extrapolated to infinity postdose normalized by MEDI9929 dose. The PK parameter was estimated based on the serum concentrations of MEDI9929. Serum concentrations of MEDI9929 were measured by enzyme-linked immunosorbent assay.
Time frame: Predose on Day 1 and Day 2, 4, 7, 11, 15, 22, 29, 43, 57 and 85 post-dose.
Maximum Observed Serum Concentration (Cmax)
The PK parameter Cmax was estimated based on the serum concentrations of MEDI9929. Serum concentrations of MEDI9929 were measured by enzyme-linked immunosorbent assay.
Time frame: Predose on Day 1 and Day 2, 4, 7, 11, 15, 22, 29, 43, 57 and 85 post-dose.
Dose-normalized Cmax (Cmax/D)
The Cmax/D is the maximum observed concentration post dose normalized by MEDI9929 dose. The PK parameter was estimated based on the serum concentrations of MEDI9929. Serum concentrations of MEDI9929 were measured by enzyme-linked immunosorbent assay.
Time frame: Predose on Day 1 and Day 2, 4, 7, 11, 15, 22, 29, 43, 57 and 85 post-dose.
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Time to Reach Cmax (Tmax)
The Tmax is the time to maximum observed serum concentration of MEDI9929. The PK parameter was estimated based on the serum concentrations of MEDI9929. Serum concentrations of MEDI9929 were measured by enzyme-linked immunosorbent assay.
Time frame: Predose on Day 1 and Day 2, 4, 7, 11, 15, 22, 29, 43, 57 and 85 post-dose.
Terminal Phase Elimination Half Life (t1/2,z)
The t½,z is the time measured for the serum drug concentration of MEDI9929 to decrease by one half. The PK parameter was estimated based on the serum concentrations of MEDI9929. Serum concentrations of MEDI9929 were measured by enzyme-linked immunosorbent assay.
Time frame: Predose on Day 1 and Day 2, 4, 7, 11, 15, 22, 29, 43, 57 and 85 post-dose.
Apparent Clearance (CL/F)
The PK parameter CL/F was estimated based on the serum concentrations of MEDI9929. Serum concentrations of MEDI9929 were measured by enzyme-linked immunosorbent assay.
Time frame: Predose on Day 1 and Day 2, 4, 7, 11, 15, 22, 29, 43, 57 and 85 post-dose.
Apparent Steady-state Volume of Distribution (Vss/F)
The PK parameter Vss/F was estimated based on the serum concentrations of MEDI9929. Serum concentrations of MEDI9929 were measured by enzyme-linked immunosorbent assay.
Time frame: Predose on Day 1 and Day 2, 4, 7, 11, 15, 22, 29, 43, 57 and 85 post-dose.
Number of Participants Reporting Treatment-Emergent Adverse Events (TEAEs) and Treatment-Emergent Serious Adverse Events
An adverse event (AE) is any unfavorable and unintended sign, symptom, or disease temporally associated with the use of study drug, whether or not considered related to the study drug. A serious adverse event (SAE) is any AE resulting in any of the following outcomes such as death; initial or prolonged inpatient hospitalization; life-threatening; persistent or significant disability/incapacity; congenital anomaly or birth defect, or is an important medical event that may jeopardize the participant or may require medical intervention to prevent one of the outcomes listed above. 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. The AEs were summarized using Medical Dictionary for Regulatory Activities version 19.0
Time frame: From the start of study drug administration up to end of follow-up period, assessed up to Day 85
Treatment-emergent Adverse Events Related to Vital Sign Parameters and Physical Findings
Vital signs (blood pressure, temperature, pulse, and respiratory rate) were performed throughout the study. The TEAEs related to vital signs in participants were reported.
Time frame: From the start of study drug administration up to end of follow-up period, assessed up to Day 85
Treatment-emergent Adverse Events Related to Laboratory Parameters
Laboratory evaluations of blood and urine samples were performed, including hematology (white blood cell count with differential, red blood cell count, hematocrit, hemoglobin and platelet count); serum chemistry: calcium, chloride, potassium, sodium, bicarbonate, aspartate transaminase, alanine transaminase, albumin, uric acid, creatinine, total bilirubin, glucose, alkaline phosphatase, blood urea nitrogen, total protein, and gamma glutamyl transferase; and urinalysis (nitrites, protein, glucose, ketones, urine drug screen, blood, and bilirubin). Number of participants with TEAEs related to laboratory evaluations were reported.
Time frame: From the start of study drug administration up to end of follow-up period, assessed up to Day 85
Treatment-emergent Adverse Events Related to Electrocardiogram Evaluations
Computerized triplicate 12-lead ECGs as well as Qualitative 12-lead ECGs were obtained during the study. ECG parameters included heart rate, PR, QRS, QT, and corrected QT (QTc) intervals. Number of participants with TEAEs related to ECG after the start of study drug were to be reported.
Time frame: From the start of study drug administration up to end of follow-up period, assessed up to Day 85
Number of Participants Positive for Anti-drug Antibodies and With Neutralizing Antibodies for MEDI9929 at Any Visit
Blood samples for immunogenicity assessment included the determination of anti-drug antibodies (ADA) for MEDI9929. The incidence rate of positive serum antibodies to MEDI9929 were presented.
Time frame: Days 1 (predose), 29, 57 and 85