Safety and Immunogenicity Study of a Ross River Virus (RRV) Vaccine
A Blinded Phase 1/2 Dose Escalation Study to Assess Safety and Immunogenicity and Investigate the Optimal Dose Level of a Formalin-Treated, UV-Inactivated, Vero Cell-Derived Ross River Virus (RRV) Vaccine in Healthy Volunteers Aged 18 to 40 Years
1 other identifier
interventional
400
3 countries
10
Brief Summary
The primary objective of this study is to assess the safety and tolerability of the Ross River Virus (RRV) Vaccine in a healthy young adult population. Other objectives of this study are to assess the immunogenicity of the RRV Vaccine in a healthy young adult population and to identify the optimal dose level of the RRV Vaccine in a healthy young adult population.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Jun 2008
10 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
June 1, 2008
CompletedFirst Submitted
Initial submission to the registry
July 17, 2008
CompletedFirst Posted
Study publicly available on registry
July 18, 2008
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 1, 2008
CompletedStudy Completion
Last participant's last visit for all outcomes
October 1, 2009
CompletedOctober 9, 2015
October 1, 2009
4 months
July 17, 2008
October 7, 2015
Conditions
Outcome Measures
Primary Outcomes (2)
Rates of subjects with fever with onset within 7 days after the first and 7 days after the second vaccination
Within 7 days after the first and second vaccinations
Immune response measured by RRV-specific IgG titer 21 days after the second vaccination
21 days after the second vaccination
Study Arms (8)
Cohort 1, Treatment Arm 1
EXPERIMENTALRandomization of a total of approx. 200 subjects to one of four treatment arms at 1:1:1:1 ratio to receive 1.25 µg of the RRV Vaccine with/without adjuvant (Al(OH)3), or 2.5 µg of the RRV Vaccine with/without adjuvant (Al(OH)3). Cohort 1 is subdivided into Cohort 1a (n = 60, i.e. 15 subjects per dose/adjuvantation combination) to receive the first vaccination on Day 0, with Day 7 safety data being reviewed by a Data Monitoring Committee and, following DMC recommendation, to receive the second vaccination at Day 21; Cohort 1b (n=140, i.e. 35 subjects per dose/adjuvantation combination) is to be vaccinated twice 21 days apart upon availability of DMC recommendation. Booster vaccination to follow 180 days after first vaccination.
Cohort 1, Treatment Arm 2
EXPERIMENTALSame as Cohort 1, Treatment Arm 1
Cohort 1, Treatment Arm 3
EXPERIMENTALSame as Cohort 1, Treatment Arm 1
Cohort 1, Treatment Arm 4
EXPERIMENTALSame as Cohort 1, Treatment Arm 1
Cohort 2, Treatment Arm 1
EXPERIMENTALRandomization of a total of approx. 100 subjects to one of two treatment arms at 1:1 ratio to receive 5 µg of the RRV Vaccine with/without adjuvant (Al(OH)3). Vaccinations take place upon review of Cohort 1a Day 7 safety data by DMC and recommendation to proceed. Booster vaccination to follow 180 days after first vaccination.
Cohort 2, Treatment Arm 2
EXPERIMENTALSame as Cohort 2, Treatment Arm 1
Cohort 3, Treatment Arm 1
EXPERIMENTALRandomization of a total of approx. 100 subjects to one of two treatment arms at 1:1 ratio to receive 10 µg of the RRV Vaccine with/without adjuvant (Al(OH)3). Vaccinations take place upon review of Cohort 1b and Cohort 2 Day 7 safety data by DMC and recommendation to proceed. Booster vaccination to follow 180 days after first vaccination.
Cohort 3, Treatment Arm 2
EXPERIMENTALSame as Cohort 3, Treatment Arm 1
Interventions
Two intramuscular injections of either 1.25 µg, 2.5 µg, 5 µg or 10 µg on Days 0 and 21, with a booster vaccination to follow 180 days after the first.
Eligibility Criteria
You may qualify if:
- Are 18 to 40 years of age, inclusive, on the day of screening;
- Have an understanding of the study and its procedures, agree to its provisions, and give written informed consent prior to study entry;
- Are generally healthy;
- Are physically and mentally capable of participating in the study and following study procedures;
- Agree to keep a daily record of symptoms for the duration of the study;
- If female of childbearing potential - have a negative urine pregnancy test result within 24 hours of the scheduled first vaccination and agree to employ adequate birth control measures for the duration of the study.
You may not qualify if:
- Have a history of RRV exposure or a history of travel to a RRV endemic area: Australia, West Papua, Papua New Guinea, Solomon Islands, New Caledonia, Fiji Islands, Samoa Islands and Cook Island;
- Have a Body Mass Index \> 35;
- Have an elevated blood pressure at screening of \> 159 mmHg systolic and/or \> 99 mmHg diastolic while seated and at rest and confirmed by two additional measurements taken at least 30 minutes apart (while seated and at rest);
- Have clinically significant abnormal clinical laboratory values at screening;
- Have clinically significant electrocardiographic abnormalities at screening;
- Test positive for Human Immunodeficiency Virus (HIV), Hepatitis B Surface Antigen (HbsAg) or Hepatitis C Virus (HCV);
- Have a history of cardiovascular disease;
- Have a history of immunodeficiency or autoimmune diseases;
- Have a history of arthritis (joint swelling, tenderness, warmth or erythema) on more than one occasion, not related to trauma (including running) or any episode of non-trauma related arthritis within the previous 6 months;
- Have an active neoplastic disease or have a history of hematological malignancy;
- Have a disease or are undergoing a form of treatment that can be expected to influence immune response. Such treatment includes, but is not limited to, systemic or high dose inhaled (\> 800 mg/day of beclomethasone dipropionate or equivalent), corticosteroids, radiation treatment or other immunosuppressive or cytotoxic drugs;
- Have a history of inflammatory or degenerative neurological disease (eg Guillain Barré, multiple sclerosis);
- Have received any vaccination within 2 weeks prior to vaccination in this study;
- Have received a blood transfusion or immunoglobulins within 30 days prior to vaccination in this study;
- Have donated blood or plasma within 30 days prior to vaccination in this study;
- +8 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (10)
Privatklinik Leech
Graz, 8010, Austria
General Hospital Vienna, Department for Clinical Pharmacology
Vienna, 1090, Austria
Universiteit Antwerpen VAXINFECTIO
Antwerp, 2610, Belgium
Unité d´Investigation Clinique BioVallée
La Louvière, 7100, Belgium
Andromed Breda
Breda, 4811 VL, Netherlands
Andromed Eindhoven
Eindhoven, 5611 NJ, Netherlands
Andromed Leiden
Leiden, 2311 GZ, Netherlands
Andromed Nijmegen
Nijmegen, 6533 HL, Netherlands
Andromed Oost
Velp, 6883 ES, Netherlands
Andromed Zoetermeer
Zoetermeer, 2724 EK, Netherlands
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
Study Record Dates
First Submitted
July 17, 2008
First Posted
July 18, 2008
Study Start
June 1, 2008
Primary Completion
October 1, 2008
Study Completion
October 1, 2009
Last Updated
October 9, 2015
Record last verified: 2009-10