Valneva Reports 95% Seroresponse Four Years After Single Shot of Chikungunya Vaccine IXCHIQ®
Valneva SE - American Depositary Shares (VALN)
Company Research
Source: GlobeNewswire
Long-lasting antibody persistence was comparable in older (65+) and younger adultsLong-term antibody persistence is a key competitive advantage for a vaccine targeting unpredictable outbreak diseases like chikungunya Saint-Herblain (France), September 30, 2025 – Valneva SE (Nasdaq: VALN; Euronext Paris: VLA), a specialty vaccine company, today reported positive antibody persistence data four years after vaccination with a single dose of its chikungunya vaccine IXCHIQ®. The results are in line with Valneva’s expectations for this vaccine, confirming a strong and long-lasting antibody persistence across all age groups investigated. The four-year persistence data are in line with previous persistence data1, 2,3, further highlighting a key advantage of the vaccine. Among the 254 healthy adults still followed in the trial, 95% maintained neutralizing antibody titers well above the seroresponse threshold4 four years after the single-dose vaccination. Persistence of antibodies in older adu
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News
- Valneva to Further Consolidate its Operations in France [Yahoo! Finance]Yahoo! Finance
- Valneva to Further Consolidate its Operations in France GlobeNewswire
- Valneva Announces Positive Final Phase 2 Results for Lyme Disease Vaccine CandidateGlobeNewswire
- Valneva SE (INRLF) Nine Months 2025 Earnings Call Highlights: Revenue Growth Amid Operational ... [Yahoo! Finance]Yahoo! Finance
- Valneva SE (VALN) Q3 2025 Earnings Call Transcript [Seeking Alpha]Seeking Alpha
VALN
Sec Filings
- 11/28/25 - Form 6-K
- 11/26/25 - Form 6-K
- 11/20/25 - Form 6-K
- VALN's page on the SEC website