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Study to Compare Safety and Immunogenicity of Yellow Fever Vaccine of Serum Institute of India with with STAMARIL

A Phase III, Multicenter, Double blind, Randomized Study of SII Yellow Fever Vaccine to Compare Safety and Immunogenicity with STAMARIL

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
PACTR
Registry ID
PACTR202206719871582
Enrollment
1824
Registered
2022-06-10
Start date
2022-07-30
Completion date
Unknown
Last updated
2026-01-27

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

Conditions

Yellow Fever

Interventions

SII YF vaccine

Sponsors

Serum Institute of India Pvt Ltd.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Male or female volunteers aged = 1 year 2. Healthy volunteers as determined by medical history and clinical examination 3. Participants willing to adhere to the protocol requirements and to provide informed consent for participants = 18 years of age. For participants 12 years but <18 years of age in Kenya) 4. Intend to remain residing in study area throughout study participation 5. Female participants of childbearing potential* must have practiced adequate contraception** and agree to continue adequate contraception till Day 28 post-vaccination. *Females can be considered not of childbearing potential only if they are pre-menarche and less than 12 years of age, or with current bilateral tubal ligation or occlusion, or post-hysterectomy, or post-bilateral ovariectomy, or post-menopause. **Adequate contraception is defined as a contraceptive method with failure rate of less than 1% per year when used consistently and correctly and when applicable, in accordance with the product label 6. Female participants of childbearing potential must have a negative pregnancy test within 24 hours prior to IP administration. 7. Be willing to avoid the use of traditional/herbal local medications and treatments for the duration of the study

Exclusion criteria

Exclusion criteria: 1. Fever (> 37.5°C) or any clinically significant acute infection at time of vaccination [Temporary exclusion criteria – participants may be rescreened at least 48 hours after the last recorded fever] 2. Use of systemic (oral or parenteral) antibiotics or antiviral agents within the past 7 days. [Temporary exclusion criteria – participants may be rescreened at least 7 days after last dose of antibiotics or antiviral agents] 3. Use of traditional/herbal local medications and treatments in the past 7 days [Temporary exclusion criteria – participants may be re-screened at least 7 days after last consumption of traditional/herbal local medications and treatment] 4. Previous history of laboratory confirmed infection with yellow fever, and other flaviviruses e.g., dengue fever, tick-borne-encephalitis (TBE), Japanese encephalitis (JE), West Nile virus (WNV), zika virus, etc. 5. Previous vaccination against yellow fever, TBE, JE, or dengue fever. 6. Receipt of any vaccine within past 28 days or planned vaccination until completion of Day 28 visit 7. Known or suspected impairment of immunological function based on medical history and physical examination. 8. Presence of any systemic disorder (cardiovascular, pulmonary, hepatic, renal, gastrointestinal, hematological, endocrine, immunological, dermatological, neurological, cancer, or autoimmune disease) as determined by medical history and / or physical examination which would compromise the participant’s health or is likely to result in nonconformance to the protocol 9. History of chronic administration (defined as more than 14 consecutive days) of immunosuppressant (> 0.5 mg/kg/day of prednisolone or equivalent) or other immune modifying drugs including the use of glucocorticoids. The use of topical/inhaled/per nasal glucocorticoids will be permitted.

Design outcomes

Primary

MeasureTime frame
Percentage seroconversion on Day 28 post-vaccination Seroconversion is defined as a four-fold rise in YF NAb (PRNT50) titres from baseline;Geometric mean titre GMT;Percentage of participants showing seroprotection

Secondary

MeasureTime frame
Immediate adverse events in all participants;Post-vaccination reactogenicity (in reactogenicity cohort) 1. Solicited local adverse events 2. Solicited systemic adverse events;All unsolicited adverse events in all participants;Serious adverse events in all participants

Countries

Kenya

Contacts

Public ContactSajjad Desai

Deputy Medical Director

sajjad.desai@seruminstitute.com+912071946821

Outcome results

None listed

Source: PACTR (via WHO ICTRP) · Data processed: Feb 4, 2026