A Multicentre Study in Otherwise Healthy Infants and Toddlers Hospitalised For and Diagnosed With RSV Lower Respiratory Tract Infection to Evaluate the Safety, Tolerability, and Clinical Activity of ALX-0171
A Phase I/IIa Multicentre Study in Otherwise Healthy Infants and Toddlers Hospitalised For and Diagnosed With Respiratory Syncytial Virus Lower Respiratory Tract Infection, Consisting of an Open-label Lead-in Part Followed by a Double-blind, Placebo-controlled Part, to Evaluate the Safety, Tolerability and Clinical Activity of ALX-0171, Administered Via Inhalation, in Addition to Standard of Care.
The primary objective of the study is to investigate the safety and tolerability of ALX-0171.
The secondary objectives are to evaluate the clinical effect of ALX-0171 and to explore the pharmacodynamics (PD) and the systemic pharmacokinetics (PK) of ALX-0171.
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 2
- Phase 1
Contacts and Locations
Study Locations
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Brisbane, Australia
- Investigator Site 4
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Randwick, Australia, 2031
- Investigator Site 2
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Tasmania, Australia
- Investigator Site 3
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Westmead, Australia, 2145
- Investigator Site 1
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Antwerp, Belgium
- Investigator Site 1
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Antwerp, Belgium
- Investigator Site 6
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Brussels, Belgium
- Investigator Site 4
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Brussels, Belgium
- Investigator Site 5
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Ghent, Belgium
- Investigator Site 2
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Leuven, Belgium
- Investigator Site 3
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Kozloduy, Bulgaria
- Investigator Site 4
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Pleven, Bulgaria
- Investigator Site 1
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Ruse, Bulgaria
- Investigator Site 2
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Sevlievo, Bulgaria
- Investigator Site 3
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Tartu, Estonia
- Investigator Site
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Budapest, Hungary, 1083
- Investigator Site 1
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Budapest, Hungary, 1089
- Investigators Site 3
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Budapest, Hungary
- Investigator Site 4
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Budapest, Hungary
- Investigator Site 5
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Szeged, Hungary, 6720
- Investigator Site 2
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Beer Sheva, Israel
- Investigator Site 3
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Haifa, Israel
- Investigator Site 2
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Petah-Tikva, Israel
- Investigator Site 1
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Daugavpils, Latvia
- Investigator Site 3
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Riga, Latvia
- Investigator Site 2
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Valmiera, Latvia
- Investigator Site 1
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Ipoh, Malaysia
- Investigator Site 2
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Kuala Lumpur, Malaysia
- Investigator Site 1
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Negeri Sembilan, Malaysia
- Investigator Site 3
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Pulau Pinang, Malaysia
- Investigator Site 4
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Manila, Philippines
- Investigator Site
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Muntinlupa, Philippines
- Investigator Site
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Quezon City, Philippines
- Investigator Site
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Bydgoszcz, Poland
- Investigator Site 3
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Lodz, Poland
- Investigator Site 2
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Trzebnica, Poland
- Investigator Site 1
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Banska Bystrica, Slovakia, 97409
- Investigator Site 5
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Bratislava, Slovakia, 82556
- Investigator Site 3
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Kosice, Slovakia, 04011
- Investigator Site 2
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Levice, Slovakia
- Investigator Site 6
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Liptovsky Mikulas, Slovakia
- Investigator Site 7
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Martin, Slovakia, 03659
- Investigator Site 1
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Poprad, Slovakia, 05845
- Investigator Site 4
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Barcelona, Spain, 08009
- Investigator Site 5
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Barcelona, Spain, 08208
- Investigator Site 2
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Girona, Spain, 17007
- Investigator Site 4
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Madrid, Spain, 28922
- Investigator Site 3
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Malaga, Spain
- Investigator Site 7
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Murcia, Spain
- Investigator Site 6
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Santiago de Compostela, Spain, 15706
- Investigator Site 1
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Sevilla, Spain
- Investigator Site 8
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Chiang Mai, Thailand
- Investigator Site 2
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Khon Kaen, Thailand
- Investigator Site
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City Of Edinburgh, United Kingdom
- Investigator Site 2
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Kent, United Kingdom
- Investigator Site 4
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Liverpool, United Kingdom
- Investigator Site 5
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Nottingham, United Kingdom
- Investigator Site 6
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Oxford, United Kingdom
- Investigator Site 1
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Tooting, United Kingdom
- Investigator Site 3
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Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Subject is otherwise healthy, but hospitalised for and clinically diagnosed with RSV LRTI (Lower Respiratory Tract Infection)
- Subject has appearance of upper or lower respiratory tract infection symptoms that are likely related to RSV
- Subject has a positive RSV diagnostic test
- Others as defined in the protocol
Exclusion Criteria:
- Subject has history of wheezing
- Subject is known to have significant comorbidities
- Subject is known to be immunocompromised
- Subject is suspected of having a clinically relevant infection other than RSV
- Others as defined in the protocol
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
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Experimental: ALX-0171
Inhalation of ALX-0171 during 3 consecutive days
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Placebo Comparator: Placebo
Inhalation of Placebo during 3 consecutive days
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Time Frame |
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Safety and Tolerability as measured by the incidence of treatment emergent adverse events, clinical laboratory parameters and physical examination
Time Frame: 1 day before first dose to 14 days after first dose
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1 day before first dose to 14 days after first dose
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Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Time Frame |
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Clinical activity as measured by the evaluation of the clinical response of the subjects
Time Frame: 1 day before first dose to 14 days after first dose
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1 day before first dose to 14 days after first dose
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Exploratory Pharmacokinetics as measured by the concentration of ALX-0171 in serum
Time Frame: Day 3
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Day 3
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Exploratory Pharmacodynamics as measured by the concentration of viral load in respiratory secretions and exploratory biomarkers in serum
Time Frame: 1 day before first dose to 14 days after first dose
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1 day before first dose to 14 days after first dose
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Immunogenicity as measured by the concentration of anti-drug antibodies in serum
Time Frame: 1 day before first dose to 14 days after first dose
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1 day before first dose to 14 days after first dose
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Collaborators and Investigators
Sponsor
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Pathologic Processes
- RNA Virus Infections
- Virus Diseases
- Respiratory Tract Diseases
- Disease Attributes
- Paramyxoviridae Infections
- Mononegavirales Infections
- Pneumovirus Infections
- Infections
- Communicable Diseases
- Respiratory Tract Infections
- Respiratory Syncytial Virus Infections
- Anti-Infective Agents
- Antiviral Agents
- Gontivimab
Other Study ID Numbers
Other Study ID Numbers
- ALX0171-C104
- 2014-002841-23 (EudraCT Number)
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