A study to evaluate safety and immunogenicity of GSK Biologicals' RSV investigational vaccine in RSV-seropositive infants aged 12 to 23 months

Phase 1

• Conditions: Active immunization of infants for the prevention of any lower respiratory tract infections (LRTI; bronchiolitis and [broncho]pneumonia) associated with respiratory syncytial virus (RSV [subtypes A and B]); MedDRA version: 21.1Level: PTClassification code 10061603Term: Respiratory syncytial virus infectionSystem Organ Class: 10021881 - Infections and infestations; MedDRA version: 21.1Level: PTClassification code 10038718Term: Respiratory syncytial virus bronchiolitisSystem Organ Class: 10021881 - Infections and infestations; MedDRA version: 21.1Level: LLTClassification code 10035692Term: Pneumonia due to respiratory syncytial virusSystem Organ Class: 10021881 - Infections and infestations; Therapeutic area: Diseases [C] - Respiratory Tract Diseases [C08]

• Registration Number: EUCTR2016-000117-76-ES
• Lead Sponsor: GlaxoSmithKline S.A.

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2016-08-05
• Study Completion: 2021-03-31
• Last Update Posted: 4 December 2023

Recruitment & Eligibility

• Status: ot Recruiting
• Sex: All
• Target Recruitment: 107

Inclusion Criteria

1. Subjects’ parent(s)/ Legally acceptable representative (LAR[s]) who, in the opinion of the investigator, can and will comply with the requirements of the protocol.
2. Written informed consent obtained from the par-ent(s)/LAR(s) of the subject prior to performance of any study specific procedure.
3. A male or female between, and including, 12 and 23 months at the time of the first vaccination.
4. Healthy subjects as established by medical history and clinical examination before entering into the study.
5. Seropositive for RSV as determined by IBL International kit.
6. Born full-term (i.e. after a gestation period of 37 to less than 42 completed weeks) with a minimum birth weight of 2.5 kg. (Required for Spain)
7. Subjects’ parent(s)/LAR(s) need to have access to a consistent mean of telephone contact or computer.
Are the trial subjects under 18? yes
Number of subjects for this age range: 96
F.1.2 Adults (18-64 years) no
F.1.2.1 Number of subjects for this age range
F.1.3 Elderly (>=65 years) no
F.1.3.1 Number of subjects for this age range

Exclusion Criteria

1. Child in care
2. Use of any investigational or non-registered product other than the study vaccine during the period starting 30 days before the first dose of study vaccine (Day -29 to Day 0), or planned use during the study period.
3. Any medical condition that in the judgment of the investigator would make IM injection unsafe.
4. Chronic administration of immunosuppressants or other immune-modifying drugs during the period starting six months prior to the first vaccine. For corticosteroids, this will mean prednisone, or equivalent. Inhaled and topical steroids are allowed.
5. Administration of long-acting immune-modifying drugs or planned administration at any time during the study period.
6. Administration of immunoglobulins and/or any blood products during the period starting three months before the first dose of study vaccine or planned administration during the study period.
7. Planned administration/administration of a vaccine not foreseen by the study protocol in the period starting 30 days before the first dose and ending 30 days after the last dose of vaccine administration, with the exception of scheduled routine pediatric vaccines which may be administered >= 14 days before a dose or >= 7 days after a dose.
8. Acute or chronic, clinically significant pulmonary, cardio-vascular, hepatic or renal functional abnormality, as determined by physical examination or laboratory screening tests.
9. Serious chronic illness.
10. Major congenital defects.
11. History of any neurological disorders or seizures.
12. History of or current autoimmune disease.
13. History of recurrent wheezing.
14. History of chronic cough.
15. Previous hospitalization for respiratory illnesses.
16. History of thrombocytopenia.
17. History of anemia.
18. Previous, current or planned administration of Synagis.
19. Neurological complications following any prior vaccination.
20. Born to a mother known or suspected to be HIV-positive.
21. Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination.
22. Family history of congenital or hereditary immunodeficiency.
23. Previous vaccination with a recombinant simian or human adenoviral vaccine.
24. History of any reaction or hypersensitivity likely to be exacerbated by any component of the vaccine.
25. Hypersensitivity to latex.
26. Current severe eczema.
27. Acute disease and/or fever at the time of enrolment.
- Fever is defined as temperature = 37.5°C/99.5°F for oral, axillary or tympanic route, or = 38.0°C/100.4°F for rectal route. The preferred route for recording temperature in this study will be axillary.
- Clinically significant upper respiratory tract infection
- Subjects with a minor illness without fever may, be enrolled at the discretion of the investigator.
28. Any clinically significant Grade 1 or any = Grade 2 hema-tological or biochemical laboratory abnormality detected at the last screening blood sampling.
29. Any other conditions that the investigator judges may interfere with study procedures or findings.
30. Any conditions that could constitute a risk for the subjects while participating to this study.
31. Weight below the fifth percentile of the local weight-for-age curve.
32. Concurrently participating in another clinical study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational vaccine/product.
33. Planned move to a location that will prohibit pa

Study & Design

• Study Type: Interventional clinical trial of medicinal product
• Study Design: Not specified