A Phase 1 Safety Study of Dengusiil in Healthy Adults

December 29, 2023 updated by: Serum Institute of India Pvt. Ltd.

A Phase 1, Double Blind, Randomized, Placebo-controlled Study to Evaluate the Safety and Immunogenicity of Dengusiil in Healthy Adults

This is a Phase 1 study to assess safety and tolerability of a single subcutaneous dose of Dengusiil in healthy adults of 18 to 45 years of age. In this study, immune response to Dengusiil will also be assessed over a period of 6 months and vaccine viremia will also be assessed over a period of 12 days after administration of vaccine.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
60

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Australia
    • South Australia
      • Adelaide, South Australia, Australia, 5000
        • CMAX Clinical Research Pty Ltd

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years to 41 years (Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  1. Healthy adults aged 18-45, men, or women.
  2. Seronegative for Dengue NS1 and IgM at screening indicating no current dengue infection
  3. Seronegative for dengue IgG at screening
  4. Participants who are willing to comply with the requirements of the study protocol and attend scheduled visits.
  5. Participants who give written informed consent approved by the Human Research Ethics Committee (HREC) governing the site.
  6. Participants must have the laboratory parameters within normal range.
  7. Participants with Body Mass Index (BMI) between 18 to 30 (both inclusive)
  8. Satisfactory baseline medical assessment as assessed by physical examination and normal laboratory values or minor variations those are acceptable for study entry.

  9. Participants should agree to not:

    1. donate blood for the purpose of blood transfusion
    2. donate an organ for the purpose of transplantation
    3. to share needles with other people
    4. allow their blood to come in contact with another person's mucous membranes for 84 days post-vaccination.

Exclusion Criteria:

  1. Previous dengue vaccination.
  2. Presence of acute infection in the preceding 14 days or presence of a temperature ≥ 38.0°C, or acute symptoms of infection greater than of "mild" severity on the scheduled date of first dosing
  3. Evidence of any other significant active haematological disease, or having donated > 450 mL of blood within the past three months.
  4. Evidence or history of substance abuse including alcohol or previous substance abuse within the last year.
  5. Participation or planned participation in a study involving the administration of an investigational compound within the past one month or during this study period.
  6. Planned administration of any vaccine not foreseen by the study protocol 4 weeks before and after dosing.
  7. History of allergic disease, allergic reactions or known hypersensitivity to any component of the study vaccines.
  8. Confirmed or suspected immunosuppressive or immune-deficient condition.
  9. A family history of congenital or hereditary immunodeficiency.
  10. Chronic administration (defined as more than 14 days) of immune-suppressants or other immune-modifying agents within six months prior to administration of study vaccine. (For corticosteroids, this means prednisone, or equivalent, ≥ 0.5 mg/kg/day; topical or inhalable steroids are allowed.)
  11. Laboratory confirmed infection with either hepatitis B virus (HBs Ag positive), hepatitis C virus (anti-HCV positive), or human immunodeficiency virus (HIV) at screening.
  12. Known bleeding disorders.
  13. Administration of immunoglobulins and/or any blood products within the three months preceding the administration of study vaccines or planned administration during the study period.
  14. Women who are pregnant, breast-feeding, or considering becoming pregnant.
  15. Any other condition, which in the opinion of the investigator, might interfere with the study objectives, jeopardize the safety or rights of the participant or making it unlikely the participant could complete the protocol.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Placebo Comparator: Placebo
Biological: Placebo
Placebo is supplied as a vial of lyophilized powder containing all the components of the vaccine except dengue virus serotypes (DENV1, 2, 3 and 4) to be reconstituted with 0.5 mL sterile water for injection (sWFI).The reconstituted product is injected as a single 0.5 mL subcutaneous (SC) dose.
Other Names:
  • Lyophilized powder containing all the components of the vaccine except DENV serotypes 1, 2, 3 and 4
Experimental: Dengusiil
Biological: Dengusiil
Dengusiil is provided as lyophilized powder to be reconstituted with 0.5 mL sterile water for injection (sWFI).The reconstituted vaccine is injected as a single 0.5 mL subcutaneous (SC) dose.
Other Names:
  • Live attenuated tetravalent vaccine containing all four dengue virus serotypes (DENV1, 2, 3 and 4)

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Solicited local and systemic reactions
Time Frame: 21 days
21 days
Occurrence, severity, and relatedness to vaccination of unsolicited adverse events
Time Frame: 21 days
21 days
Occurrence, severity, and relatedness to vaccination of serious adverse events
Time Frame: 180 days
180 days
Proportion of participants with clinically significant abnormal safety laboratory (hematology and chemistry parameters) findings
Time Frame: 8 days
8 days
Proportion of participants with clinically significant physical examination and vital signs findings
Time Frame: 180 days
180 days

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Proportion of participants with seroconversion for DENV-1 to 4 virus neutralization antibodies (PRNT50) titer
Time Frame: 84 days
84 days
The percentage of participants seropositive for DENV-1 to 4 virus neutralizing antibodies
Time Frame: 84 days
84 days
The percentage of participants seropositive for DENV-1 to 4 virus neutralizing antibodies
Time Frame: 180 days
180 days
Geometric mean titers (GMTs) of DENV-1 to 4 virus neutralization antibodies
Time Frame: 56 days
56 days
GMTs of DENV-1 to 4 virus neutralization antibodies
Time Frame: 84 days
84 days
Proportion of participants with viremia for each of DENV-1 to 4
Time Frame: 12 days
12 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Serum Institute of India Pvt. Ltd.

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
PPD Australia Pty Ltd

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: PRASAD KULKARNI, MD, SERUM INSTITUTE OF INDIA

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 17, 2019

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 11, 2021

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 11, 2021

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 25, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 25, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 29, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 3, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 29, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2023

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • Dengusiil-01

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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