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A Ph2, randomized, double-blind, dose finding study to describe the immunogenicity, safety and tolerability of VN-0200 in Japanese adults aged 60-80 years

A Ph2, randomized, double-blind, dose finding study to describe the immunogenicity, safety and tolerability of VN-0200 in Japanese adults aged 60-80 years

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2071220051
Enrollment
340
Registered
2022-09-08
Start date
2022-10-13
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Prevention of respiratory syncytial viral infection

Interventions

VN-0200 0.5 mL is intramuscularly administered twice at upper arm on Day 1 and Day 29.

Sponsors

Inoguchi Akihiro
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Healthy Japanese subjects aged 60 to 80 years of age at the time of informed consent. 2) Subjects who complied with the compliance instructions in the study, underwent physical examination and examinations specified in the protocol, and were able to report symptoms, etc.

Exclusion criteria

Exclusion criteria: -Serious cardiovascular, respiratory, hepatic, renal, gastrointestinal, or neuropsychiatric disorders. -Serious acute illness. -Has been diagnosed with congenital or acquired immunodeficiency. -Previous vaccination with an RSV vaccine (including the investigational drugs) -Having a history of anaphylaxis or severe allergies due to medicines, or vaccination, etc. -Administration of gamma globulins, systemic immunosuppressants (including drugs for the treatment of autoimmune diseases), hematopoietics (excluding iron and vitamins), and corticosteroids (excluding topical preparations, inhalants, and small-dose short-term oral administration*) or planned administration of them in the period starting 28 days prior to informed consent and ending 28 days after the second vaccination. * <14 days, <=20 mg/day on a prednisolone basis. -Planned or actual administration of other vaccine in the period starting 14 days prior to informed consent and ending 14 days after the second vaccination., etc.

Design outcomes

Primary

MeasureTime frame
Geometric mean titer (GMT) and geometric mean fold rise (GMFR) of anti-RSV/A (RSV subgroup A) neutralizing activity on 28 days after the second administration of the study drug (Day 57)

Secondary

MeasureTime frame
Efficacy - GMT and GMFR of anti-RSV/A neutralizing activity on 28 days after the first administration of the Study Drug (Day 29) - GMT and GMFR of anti-RSV/B (RSV subgroup B) neutralizing activity on Day 29 and Day 57 - GMT and GMFR of anti-VAGA-9001a antibody on Day 29 and Day 57 - Summary statistics of VAGA-9001a-specific IFN-r production responses on Day 29 and Day 57 Safety - Solicited adverse events (injection site and systemic), Non-solicited adverse events, Serious adverse events, Laboratory test values, Potential immune-mediated disease (pIMD)

Contacts

Public ContactContact for Clinical Trial Information

DAIICHI SANKYO Co.,Ltd.

dsclinicaltrial@daiichisankyo.co.jp+81-3-6225-1111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026