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Completed

NCT Number: NCT01242670

Ross River Virus (RRV) Vaccine Study

The purpose of the study is to verify the safety and adequacy of the immune response produced by a 2.5 µg, adjuvanted (aluminium hydroxide) dose of Ross River Virus (RRV) vaccine and to demonstrate the consistency of manufacture of 3 separate lots of RRV vaccine.

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Key information

Age range

16 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Holdsworth House, Byron Bay, New South Wales, Australia

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Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Subject is 16 to 59 years of age on the day of screening (for Stratum A only)
  • Subject is 60 years of age or older on the day of screening (for Stratum B only)
  • Subject and, if applicable, subject's parent(s)/legal guardian(s) has (/have) an understanding of the study and its procedures, agree to its provisions, and give written informed consent prior to study entry
  • Subject provides written assent according to his/her age, if applicable
  • Subject is generally healthy as determined by the investigator's clinical judgment based upon medical history and physical examination
  • Subject is physically and mentally capable of participating in the study and following study procedures
  • Subject agrees to keep a daily record of symptoms for the duration of the study
  • If female of childbearing potential - subject has 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

Exclusion criteria

  • Subject has a Body Mass Index > 35.0
  • Subject has an elevated blood pressure at screening of > 159 mmHg systolic and/or > 99 mmHg diastolic while seated and at rest and confirmed by 2 additional measurements taken at least 30 minutes apart (while seated and at rest)
  • Subject has any inherited or acquired immune deficiency
  • Subject has or has a recent history of significant neurological, cardiovascular, respiratory (including asthma), hepatic, metabolic, rheumatic, autoimmune, hematological or renal disorder
  • Subject has a history of arthritis (including RRV disease, 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
  • Subject has a disease or is currently undergoing a form of treatment or was undergoing a form of treatment within 30 days prior to study entry that could be expected to influence immune response. Such treatment includes, but is not limited to, systemic or high dose inhaled (> 800 μg/day of beclomethasone dipropionate or equivalent), corticosteroids, radiation treatment or other immunosuppressive or cytotoxic drugs
  • Subjects has received any vaccination within 30 days prior to study entry
  • Subject has received a blood transfusion or immunoglobulins within 90 days prior to study entry
  • Subject has donated blood or plasma within 30 days prior to study entry
  • Subject has a history of any vaccine related contraindicating event (eg, anaphylaxis, allergy to components of the test vaccine, other known contraindications)
  • Subject has a dermatologic condition or tattoos which may interfere with injection site reaction rating
  • Subject has participated in another clinical study involving an investigational drug, biological product or device within 30 days prior to enrollment in this study or is scheduled to participate in another clinical study involving an investigational drug, biological or device during the course of this study
  • Subject has functional or surgical asplenia
  • Subject has a known or suspected problem with alcohol or drug abuse
  • Subject is a member of the team conducting this study or is in a dependent relationship with one of the study team members. Dependent relationships include close relatives (ie, children, partner/spouse, siblings, parents) as well as employees of the investigator or site personnel conducting this study
  • Subject is pregnant or lactating

Treatment and study plan

Ross River Virus Vaccine

Biological

Ross River Virus Vaccine (Formalin Treated, UV Inactivated, Vero Cell-Derived) with Aluminum Hydroxide Adjuvant

Primary outcomes

  1. Immune response measured by Ross River Vaccine (RRV)-specific neutralizing titer 21 days after the 3rd vaccination as determined by RRV microneutralization (μNT) assay

    Time frame: 21 days after 3rd vaccination

  2. Rate of subjects with a RRV-specific neutralizing titer

    Time frame: 21 days after 3rd vaccination

    Rate of subjects with a RRV-specific neutralizing titer 21 days after the third vaccination as determined by RRV microneutralization (μNT) assay

  3. Frequency and severity of injection site and systemic reactions within 7 days of any study vaccination

    Time frame: Within 7 days of any study vaccination

Secondary outcomes

  1. Rate of subjects with a RRV-specific neutralizing titer

    Time frame: 21 days after 1st + 2nd vaccination and 180 days after 1st + 3rd vaccination

  2. Rate of subjects with seroconversion

    Time frame: 21 days after 1st, 2nd + 3rd vaccination and 180 days after 1st + 3rd vaccination

    Seroconversion is defined as a positive RRV-specific neutralizing titer after vaccination (>= 1:10) when RRV-specific neutralizing titer at baseline is < 1.4 or a minimum 4-fold RRV-specific neutralizing titer increase as compared to baseline

  3. Immune response measured by RRV-specific neutralizing titer

    Time frame: 21 days after 1st + 2nd and 180 days after 1st + 3rd vaccination

  4. Fold increase of RRV-specific neutralizing titer

    Time frame: 21 days after 1st, 2nd + 3rd vaccination and 180 days after 1st + 3rd vaccination

    Fold increase as compared to baseline

  5. Rate of subjects with a RRV-specific immunoglobulin G (IgG) titer

    Time frame: 21 days after 1st, 2nd + 3rd vaccination and 180 days after 1st + 3rd vaccination

  6. Rate of subjects with seroconversion (defined as a positive RRV-specific IgG) titer after vaccination

    Time frame: 21 days after 1st, 2nd + 3rd vaccination and 180 days after 1st + 3rd vaccination

  7. Immune response measured by RRV-specific IgG titer

    Time frame: 21 days after 1st, 2nd + 3rd vaccination and 180 days after 1st + 3rd vaccination

  8. Fold increase of RRV-specific IgG titer

    Time frame: 21 days after 1st, 2nd + 3rd vaccination and 180 days after 1st + 3rd vaccination

    Fold increase as compared to baseline

  9. Frequency and severity of any systemic reactions

    Time frame: Within first 21 days of study vaccination

  10. Frequency and severity of any injection site reactions

    Time frame: Within first 21 days following a study vaccination

  11. Frequency and severity of any adverse event

    Time frame: During entire study period

  12. Rate of subjects experiencing arthritis associated with one or more of the systemic symptoms consistent with RRV disease

    Time frame: Occurring at least 3 days after vaccination and lasting for more than 3 weeks

    Arthritis is defined as soft tissue "synovitic"swelling, ie joint effusion or synovial tissue thickening, or both, with or without pain localized to the affected joint.

    Symptoms consistent with RRV disease include fever, fatigue, malaise, rash, arthralgia, myalgia, lymphadenopathy, splenomegaly, sore throat, diarrhea, paresthesia, headache, neck stiffness, and photophobia.

Sponsors and collaborators

Lead sponsor

Alachua Government Services, Inc.

Industry

Registry information

Official study title

A Phase 3 Study to Assess the Immunogenicity, Safety, and Consistency of Lot Manufacture of Ross River Virus (RRV) Vaccine in Healthy Male and Female Subjects 16 Years of Age and Older

Important dates

Study start
2011
Primary completion
2012
Study completion
2012
First posted
Nov 17, 2010
Registry last updated
Oct 9, 2015

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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