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A Phase 3, randomized, controlled, partially blind, immuno-bridging study to evaluate immunogenicity, reactogenicity, safety and the occurrence of RSV-associated respiratory tract illness after administration of a single dose of GSK’s RSVPreF3 OA investigational vaccine in adults aged 60 years and older.

Status
Completed
Phases
Phase 3Phase 4
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-509455-13-00
Acronym
219815
Enrollment
560
Registered
2024-07-22
Start date
2024-08-05
Completion date
2025-11-27
Last updated
2025-11-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Respiratory Syncytial Virus Infections

Brief summary

• RSV-A neutralization titres expressed as group GMT ratio (RSV OA group [Overseas] / RSV OA group [China]), 1 month after the RSVPreF3 OA investigational vaccine administration. • RSV-A neutralization titres expressed as group seroresponse rate (SRR) difference (RSV OA group [Overseas] - RSV OA group [China]), 1 month after the RSVPreF3 OA investigational vaccine administration., • RSV-B neutralization titres expressed as group GMT ratio (RSV OA group [Overseas] / RSV OA group [China]), 1 month after the RSVPreF3 OA investigational vaccine administration. • RSV-B neutralization titres expressed as group SRR difference (RSV OA group [Overseas] - RSV OA group [China]), 1 month after the RSVPreF3 OA investigational vaccine administration.

Detailed description

• RSV-A and RSV-B neutralization titres expressed as GMT, at baseline, 1 month and 6 months after the RSVPreF3 OA investigational vaccine administration. • RSV-A and RSV-B neutralization titers expressed as SRR, 1 month and 6 months after the RSVPreF3 OA investigational vaccine administration., • RSV-A and RSV-B neutralization titres expressed as group GMT ratio (RSV OA=ADJ-006 / RSV OA Vaccine group [China]), 1 month after the RSVPreF3 OA investigational vaccine administration. • RSV-A and RSV-B neutralization titres expressed as group SRR difference (RSV OA=ADJ-006 - RSV OA Vaccine group [China]), 1 month after the RSVPreF3 OA investigational vaccine administration., Occurrence of RT-PCR-confirmed RSV A and/or B-associated ARI and LRTD, according to the case definition. In study participants in China with RT-PCR-confirmed RSV A and/or B associated ARI and LRTD cases: • Duration of episodes. • Reported symptoms/signs. • ARI/LRTD severity. • Frailty status., For RSV OA group (China) and Placebo group (China): • Percentage of participants reporting each solicited administration site event with onset within 7 days after study intervention administration (i.e., the day of study intervention administration and 6 subsequent days). • Percentage of participants reporting each solicited systemic event with onset within 7 days after study intervention administration (i.e., the day of study intervention administration and 6 subsequent days)., For RSV OA group (China) and Placebo group (China): • Percentage of participants reporting unsolicited AEs within 30 days after study intervention administration (i.e., the day of study intervention administration and 29 subsequent days). • Percentage of participants reporting SAEs after study intervention administration (Day 1) up to 6 months after study intervention., For RSV OA group (China) and Placebo group (China): • Percentage of participants reporting pIMDs after study intervention administration (Day 1) up to 6 months after study intervention. • Percentage of participants reporting SAEs related to study intervention after study intervention administration (Day 1) up to study end. • Percentage of participants reporting pIMDs related to study intervention after study intervention administration (Day 1) up to study end., For RSV OA group (China) and Placebo group (China): • Percentage of participants reporting any fatal SAEs after study intervention administration (Day 1) up to study end., For RSV OA group (Overseas): • Percentage of participants reporting SAEs after study intervention administration (Day 1) up to study end (Month 6). • Percentage of participants reporting pIMDs after study intervention administration (Day 1) up to study end (Month 6). • Percentage of participants reporting SAEs related to study intervention after study intervention administration (Day 1) up to study end (Month 6)., For RSV OA group (Overseas): • Percentage of participants reporting pIMDs related to study intervention after study intervention administration (Day 1) up to study end (Month 6). • Percentage of participants reporting any fatal SAEs after study intervention administration (Day 1) up to study end (Month 6).

Interventions

Sponsors

GlaxoSmithKline Biologicals
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
• RSV-A neutralization titres expressed as group GMT ratio (RSV OA group [Overseas] / RSV OA group [China]), 1 month after the RSVPreF3 OA investigational vaccine administration. • RSV-A neutralization titres expressed as group seroresponse rate (SRR) difference (RSV OA group [Overseas] - RSV OA group [China]), 1 month after the RSVPreF3 OA investigational vaccine administration., • RSV-B neutralization titres expressed as group GMT ratio (RSV OA group [Overseas] / RSV OA group [China]), 1 month after the RSVPreF3 OA investigational vaccine administration. • RSV-B neutralization titres expressed as group SRR difference (RSV OA group [Overseas] - RSV OA group [China]), 1 month after the RSVPreF3 OA investigational vaccine administration.

Secondary

MeasureTime frame
• RSV-A and RSV-B neutralization titres expressed as GMT, at baseline, 1 month and 6 months after the RSVPreF3 OA investigational vaccine administration. • RSV-A and RSV-B neutralization titers expressed as SRR, 1 month and 6 months after the RSVPreF3 OA investigational vaccine administration., • RSV-A and RSV-B neutralization titres expressed as group GMT ratio (RSV OA=ADJ-006 / RSV OA Vaccine group [China]), 1 month after the RSVPreF3 OA investigational vaccine administration. • RSV-A and RSV-B neutralization titres expressed as group SRR difference (RSV OA=ADJ-006 - RSV OA Vaccine group [China]), 1 month after the RSVPreF3 OA investigational vaccine administration., Occurrence of RT-PCR-confirmed RSV A and/or B-associated ARI and LRTD, according to the case definition. In study participants in China with RT-PCR-confirmed RSV A and/or B associated ARI and LRTD cases: • Duration of episodes. • Reported symptoms/signs. • ARI/LRTD severity. • Frailty status., For RSV OA group (China) a

Countries

Finland, Poland, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026