A Study to Evaluate the Safety and Efficacy of MEDI8897 for the Prevention of Medically Attended RSV LRTI in Healthy Preterm Infants. (MEDI8897 Ph2b)
|The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.|
|ClinicalTrials.gov Identifier: NCT02878330|
Recruitment Status : Completed
First Posted : August 25, 2016
Results First Posted : October 14, 2019
Last Update Posted : October 14, 2019
|Condition or disease||Intervention/treatment||Phase|
|Respiratory Syncytial Virus Infections||Drug: MEDI8897 Drug: Placebo||Phase 2|
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||1453 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)|
|Official Title:||A Phase 2b Randomized, Double-Blind, Placebo-controlled Study to Evaluate the Safety and Efficacy of MEDI8897, a Monoclonal Antibody With an Extended Half-life Against Respiratory Syncytial Virus, in Healthy Preterm Infants|
|Actual Study Start Date :||November 3, 2016|
|Actual Primary Completion Date :||July 17, 2018|
|Actual Study Completion Date :||December 6, 2018|
Placebo Comparator: Placebo
Participants will receive a single intramuscular (IM) dose of placebo matched to MEDI8897 on Day 1 of the study.
A single IM dose of placebo matched to MEDI8897 on Day 1 of the study.
Experimental: MEDI8897 50 mg
Participants will receive a single IM dose of MEDI8897 50 milligrams (mg) on Day 1 of the study.
A single IM dose of 50 mg on Day 1 of the study.
- Number of Participants With Medically Attended Respiratory Syncytial Virus (RSV) Confirmed Lower Respiratory Tract Infection (LRTI) [ Time Frame: From Day 1 through Day 151 ]The determination of medically attended RSV LRTI is based on objective clinical LRTI criteria and RSV test results obtained from analyzing the respiratory secretions using a validated RSV real time reverse transcriptase-polymerase chain reaction (RT-PCR) assay for the detection of RSV A or RSV B subtypes. Criteria for LRTI included documented physical exam findings of rhonchi, rales, crackles, or wheeze and any of the following: increased respiratory rate at rest (for age less than (<) 2 months: greater than or equal to (>=) 60 breaths/min; 2-6 months: >= 50 breaths/min; and for > 6 months - 2 years, >= 40 breaths/min), or hypoxemia (in room air - oxygen saturation < 95% at altitudes less than or equal to (<=) 1800 meters or < 92% at altitudes > 1800 meters), or clinical signs of severe respiratory disease or dehydration secondary to inadequate oral intake due to respiratory distress (need for intravenous fluid).
- Number of Participants Hopitalized Due to Respiratory Syncytial Virus (RSV) Confirmed Lower Respiartory Tract Infection (LRTI) [ Time Frame: From Day 1 through Day 151 ]A RSV hospitalization is defined as either 1) a respiratory hospitalization with a positive RSV test within 2 days of hospitalization (primary) or 2) new onset of respiratory symptoms in an already hospitalized child, with an objective measure of worsening respiratory status and positive RSV test (nosocomial).
- Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs) [ Time Frame: From Day 1 through Day 361 ]An adverse event (AE) is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An serious adverse event (SAE) is an AE 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. TEAEs are 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 Adverse Events of Special Interest (AESIs) and New Onset Chronic Diseases (NOCDs) [ Time Frame: From Day 1 through Day 361 ]An AESI was one of scientific and medical interest specific to understanding of study drug and may have required close monitoring and rapid communication by investigator to the sponsor. An AESI may be serious or non-serious. A NOCD is a newly diagnosed medical condition that is of a chronic, ongoing nature. It is observed after receiving study drug and is assessed by investigator as medically significant.
- Serum Concentration of MEDI8897 [ Time Frame: Days 91, 151, and 361 ]
- Elimination Half-life (t1/2) of MEDI8897 [ Time Frame: Day 91 through Day 361 ]Terminal elimination half-life (t½) is the time required for half of the drug to be eliminated from the serum.
- Number of Participants With Positive Anti-drug Antibodies to MEDI8897 [ Time Frame: Days 91, 151, and 361 ]The number of participants with positive serum antibodies to MEDI8897 are reported.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02878330