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MEDI-534

Phase 1

Healthy | Monoclonal antibody | Other |AstraZeneca PLC|Last Updated: Jul 19, 2012

Success Probability

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Trial Design

RandomizedDouble-BlindCONTROLLEDDMC
Total Trials1
Total Enrollment120

FDA Designations

No designations recorded

Clinical trial landscape

MEDI-534 · 2 trials · 4 indications

Phase 1 2
NCT00493285Safety and Tolerability Study to Evaluate MEDI-534 in Children 6 to < 24 Months of AgeRespiratory Viral Infections
COMPLETED49 Analytics
NCT00345670Study to Evaluate the Safety of MEDI-534 Vaccine Against Respiratory Syncytial Virus (RSV) and Parainfluenza Virus Type 3 (PIV3) in Healthy ChildrenHealthy
COMPLETED120 Analytics
PHASE1COMPLETED
Safety and Tolerability Study to Evaluate MEDI-534 in Children 6 to < 24 Months of Age
Respiratory Viral InfectionsUnlock trial analytics
PHASE1COMPLETED
Study to Evaluate the Safety of MEDI-534 Vaccine Against Respiratory Syncytial Virus (RSV) and Parainfluenza Virus Type 3 (PIV3) in Healthy Children
HealthyUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With Solicited Adverse Events (SEs) After Dose 1
Days 0-28 after Dose 1 (Dose 1 was on Day 0)

The SEs for this study included fever ≥ 100.4°F, runny/stuffy nose, cough, drowsiness, loss of appetite/decreased urine output, irritability/fussiness, laryngitis, and epistaxis.

Number of Participants With SEs After Dose 2
Days 0-28 after Dose 2 (Dose 2 was on Day 48-64)

The SEs for this study included fever ≥ 100.4°F, runny/stuffy nose, cough, drowsiness, loss of appetite/decreased urine output, irritability/fussiness, laryngitis, and epistaxis.

Number of Participants With SEs After Dose 3
Days 0-28 after Dose 3 (Dose 3 was 48-64 days after Dose 2)

The SEs for this study included fever ≥ 100.4°F, runny/stuffy nose, cough, drowsiness, loss of appetite/decreased urine output, irritability/fussiness, laryngitis, and epistaxis.

Number of Participants With Adverse Events (AEs) After Dose 1
Days 0-28 after Dose 1 (Dose 1 was on Day 0)

Unsolicited AEs reported by 1 or more participants in either treatment group through 28 days post Dose 1.

Number of Participants With AEs After Dose 2
Days 0-28 after Dose 2 (Dose 2 was on Day 48-64)

Unsolicited AEs reported by 1 or more participants in either treatment group through 28 days post Dose 2.

Number of Participants With AEs After Dose 3
Days 0-28 after Dose 3 (Dose 3 was 48-64 days after Dose 2)

Unsolicited AEs reported by 1 or more participants in either treatment group through 28 days post Dose 3.

Number of Subjects With Medically-attended Lower Respiratory Illnesses (MA-LRIs)
Days 0 to 180 days after final dose or the end of the RSV season, whichever was later

An MA-LRI was a healthcare provider-confirmed diagnosis of 1 or more of the following: wheezing, pneumonia, croup, rhonchi (not cleared with cough or suctioning), rales, bronchitis, bronchiolitis, apnea.

Number of Participants With Serious Adverse Events (SAEs)
Days 0-28 after any dose

Events resulting in death; were life-threatening; resulted in inpatient hospitalization/prolongation of hospitalization; resulted in persistent or significant disability or incapacity; were a congenital anomaly/birth defect in the offspring of a participant; or were an important medical event that may not have resulted in death, threatened life, or required hospitalization and may have jeopardized the participant and required medical/surgical intervention to prevent one of the above outcomes.

Number of Participants With Significant New Medical Conditions (SNMCs)
Day 0 through 180 days after the final dose or through the end of the RSV season, whichever was later

A SNMC is a newly diagnosed medical condition that is of a chronic, ongoing nature and is assessed by the investigator as medically significant.

To describe the safety and tolerability of 1-9 year old RSV and PIV3 seropositive children
Day 28
Reactogenicity evaluations (REs) from administration of study vaccine through 28 days post-dosing
Day 28 post final vaccination
Adverse events (AEs) from administration of study vaccine through 28 post-dosing
Day 28 post final vaccination
Serious adverse events (SAEs) from administration of study vaccine through 28 days post-dosing
Day 180

Secondary Endpoints

Number of Participants Shedding Vaccine-like Virus at Any Time During Study Participation
Days 7, 12, and 28 after each dose and during visits for pre-specified illness symptoms occurring Day 0 through 28-34 days post each dose.
Number of Participants Shedding Vaccine-like Virus at 7 Days After Dose 1
Days 7-10 after Dose 1 (Dose 1 was on Day 0)
Number of Participants Shedding Vaccine-like Virus at 12 Days After Dose 1
Days 12-18 after Dose 1 (Dose 1 was on Day 0)
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
1ACTIVE_COMPARATORMEDI-534 at 10\^4 TCID50 at 0, 2, and 4 months (Nasal spray)
2ACTIVE_COMPARATORMEDI-534 at 10\^5 TCID50 at 0, 2, and 4 months (Nasal Spray)
3ACTIVE_COMPARATORMEDI-534 at 10\^6 TCID50 at 0, 2, and 4 months (Nasal Spray)

Interventions

NameTypeDescription
MEDI-534BIOLOGICALMultiple doses of MEDI-534 or Placebo at 10\^4 TCID50
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Eligibility Criteria

Age Range6 Months to 23 Months
SexALL
Healthy VolunteersYes
Study Sites30

Inclusion Criteria: * Male or female whose age on the day of randomization is 6 to \<24 months (reached 6th month birthday and not yet reached 2nd year birthday) * Subject is seronegative to both RSV and PIV3 at screening * Subject was the product of normal full term pregnancy (defined as \>36 week...

Countries:United States
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Frequently asked questions about MEDI-534

What is MEDI-534 used for?

MEDI-534 is an investigational monoclonal antibody being studied for the prevention of respiratory viral infections, specifically respiratory syncytial virus (RSV) and parainfluenza virus type 3 (PIV3), in healthy children. It is currently in Phase 1 clinical development and is not yet approved for any use.

Who makes MEDI-534?

MEDI-534 is being developed by AstraZeneca PLC, which trades under the ticker AZN. The company is conducting clinical trials to evaluate the safety and tolerability of this investigational monoclonal antibody in pediatric populations.

What phase is MEDI-534 in?

MEDI-534 is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by regulatory authorities. Two Phase 1 trials have been completed, with a total enrollment of 120 participants in one study and 49 in another.

What clinical trials is MEDI-534 in?

MEDI-534 has been studied in two completed Phase 1 trials. NCT00345670 evaluated its safety in healthy children against RSV and PIV3, enrolling 120 participants. NCT00493285 assessed safety and tolerability in children aged 6 to <24 months, enrolling 49 participants. Both trials were conducted in the United States.

How does MEDI-534 work?

MEDI-534 is a monoclonal antibody designed to target respiratory syncytial virus (RSV) and parainfluenza virus type 3 (PIV3). By binding to these viruses, it is intended to neutralize them and prevent infection in healthy children. Its exact mechanism of action is under investigation in clinical trials.