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Dengue VirusPhase 1NCT03141138

Comparison of Tetravalent Dengue Virus Purified Inactivated Vaccine and Tetravalent Dengue Virus Live Attenuated Vaccine

A Phase 1 study testing TDENV-PIV and TDENV-LAV F17 in people with Dengue Virus, run by U.S. Army Medical Research and Development Command at 1 site in United States.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This study is a Phase 1, randomized, open-label study of the prime-boost vaccine candidates given in the prime-boost regimen previously demonstrated to have a high level of immunogenicity and immune durability: Day 0 prime (PIV) and Day 180 boost (LAV), and compare it with a previously untested schedule: Day 0 prime… Read more about this study

Who is it for?
Ages 18 to 42 yearsHealthy volunteers can take part
Conditions the study is for
Dengue Virus
What is being tested?
TDENV-PIV and TDENV-LAV F17
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteUnited States
Study dates
8 Nov 2017to 31 Dec 2021
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 42 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Male or female between 18 and 42 years of age (inclusive) at the time of consent
  • Able to provide written informed consent
  • Healthy as established by medical history and clinical examination and basic hematologic laboratory analysis before entering into the study
  • Able and willing to comply with the requirements of the protocol (eg, document events in memory aid, return for follow-up visits, etc.)
  • Dengue exposure naïve as established by pre-enrollment dengue PRNT testing and questioning of volunteer
  • Female subject of non-childbearing potential (non-childbearing potential is defined as having either a current bilateral tubal ligation at least 3 months prior to enrollment or a history of an hysterectomy, bilateral oophorectomy, or is post-menopause(12 months or more since last menstrual period)) or Female subject of childbearing potential may be enrolled in the study, if the subject has:
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  • Practiced adequate contraception for 30 days prior to vaccinations, and
  • A negative urine pregnancy test on each day of vaccination, and
  • Agreed to continue adequate contraception through at least 3 months following last vaccination

Who cannot join

  • Use of any investigational or non-registered product (drug or vaccine or device) other than the study vaccines during the period starting 30 days preceding the first dose of study vaccine and/or planned use during the study period
  • Chronic administration (defined as more than 14 days in total) of prescription immunosuppressants or other prescription immune-modifying drugs during the period starting 180 days prior to the first vaccine dose
  • For corticosteroids, this will mean prednisone ≥ 20 mg/d or equivalent
  • Inhaled and topical steroids are allowed
  • History of or active use of cancer chemotherapy or radiation therapy for the treatment of cancer
  • Receipt or planned receipt of a vaccine/product outside the study protocol within 30 days of each scheduled dose of an investigational product
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  • Planned administration of any flavivirus vaccine, to include licensed vaccines for Yellow Fever or Japanese Encephalitis Virus as well as other investigational vaccines for dengue, Zika, West Nile, other flavivirus, for the entire study duration
  • Previous receipt of a foreign or investigational dengue vaccine
  • Concurrently participating in another clinical study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational product (pharmaceutical product or device)
  • Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination
  • History of, or current, auto-immune disease
  • History of any reaction or hypersensitivity likely to be triggered by any component of the vaccines or related to a study procedure (This includes hypersensitivity reactions to alum, streptomycin, neomycin, or any other flavivirus vaccine, such as Yellow Fever virus and Japanese Encephalitis virus vaccines)
  • Major congenital defects or serious chronic illness
  • History of any chronic neurological disorders or chronic and/or uncontrolled seizures
  • Acute infectious disease and/or fever (oral body temperature ≥ 100.4°F/38.0°C) at the time of enrollment (a subject with a minor illness, ie, mild diarrhea, mild upper respiratory infection, etc., without fever, may be enrolled at the discretion of the investigator)
  • Acute or chronic, clinically significant pulmonary, cardiovascular, hepatic, or renal functional abnormality, as determined by history, physical examination or laboratory screening tests
  • Receipt of immunoglobulins or any blood products during the period starting 90 days preceding the first dose of study vaccine or planned receipt during the study period
  • Donated blood within 8 weeks before first scheduled investigational vaccine receipt or planned donation of blood products throughout the study period
  • History of chronic alcohol abuse and/or drug abuse that, in the opinion of the investigator, could result in poor compliance with study requirements.
  • Pregnant or breastfeeding female or female planning to become pregnant or planning to discontinue contraceptive precautions
  • A planned move to a location that will prohibit compliance with the requirements of the trial
  • Subject seropositive for hepatitis B surface antigen (HBsAg), hepatitis C virus antibodies (anti-HCV), or human immunodeficiency virus antibodies (anti-HIV)
  • Safety laboratory test results that are outside the acceptable values at screening:
  • > 110% upper limit of normal (ULN) for alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase, creatinine, serum urea nitrogen (SUN) and bilirubin (total and direct)
  • < 100% lower limit of normal (LLN) or > 120% ULN for hemoglobin, hematocrit and platelet count
  • < 75% LLN or >110% ULN for total white blood cell count (WBC) Note: Per guidance in section 8.1, abnormal lab(s) may be repeated x1 in the screening window provided the total amount of blood drawn for all screening labs does not exceed 50 mL.
  • Active Diabetes or active peptic ulcer disease (PUD)
  • Diagnosis with Bipolar Disorder or Schizophrenia, hospitalization in the past year for a mental health disorder, or any other psychiatric condition, which in the opinion of the investigator prevents the subject from meeting all requirements of the study
  • Chronic migraine headaches, defined as more than 15 headache days per month over a 3 month period of which more than 8 are migrainous, in the absence of medication over use
  • Chronic medical condition that, in the opinion of the investigator, impacts subject safety
  • Any other condition which, in the opinion of the investigator, prevents the subject from meeting all requirements of the study.
  • Do not wish to have their blood stored and used for future research

Trial locations and contacts

1 site in 1 country.

United States1 site
  • WRAIR, Clinical Trials Center

    Silver Spring, Maryland, 20910-7500

Other trials in United States

About this study

Official title: A Phase 1, Randomized, Open-label, Comparison of Heterologous Prime-Boost Vaccination Schedules of Tetravalent Dengue Virus Purified Inactivated Vaccine (PIV) and Tetravalent Dengue Virus Live Attenuated Vaccine (LAV) in Healthy Adults

This study is a Phase 1, randomized, open-label study of the prime-boost vaccine candidates given in the prime-boost regimen previously demonstrated to have a high level of immunogenicity and immune durability: Day 0 prime (PIV) and Day 180 boost (LAV), and compare it with a previously untested schedule: Day 0 prime (PIV) and Day 90 boost (LAV) in order to define the potential tradeoff between potential immunogenicity, including cell-mediated immunity, and a more practical dosing schedule.

Read the detailed description

This study is a Phase 1, randomized, open-label, study with 2 treatment groups (N=40):

Group 1 (n=20): TDENV-PIV 4 µg + Alum adjuvant (Day 0), TDENV-LAV F17 (Day 180) Group 2 (n=20): TDENV-PIV 4 µg + Alum adjuvant (Day 0), TDENV-LAV F17 (Day 90)

Investigational Product Dosage, Schedule, and Mode of Administration:

TDENV-PIV Dosage: 0.5 mL of DENV serotypes 1-4 (4 µg / serotype) in alum adjuvant Mode of administration: intramuscular (IM) into the subject's upper arm, deltoid area of the subject's arm; vaccination will be given in the non-dominant arm whenever possible TDENV-LAV F17 Dosage: 0.5 mL of the post-transfection LAV F17 vaccine Mode of administration: subcutaneously into the upper-outer triceps/deltoid area of the subject's arm; vaccination will be given in the non-dominant arm whenever possible Schedule Varied, 2 vaccinations per volunteer in a heterologous prime-boost strategy. First dose on Day 0 (PIV) AND a second dose (LAV) on Day 180 for group 1. First dose on Day 0 (PIV) AND a second dose (LAV) on Day 90 for group 2.

This study is intended to further evaluate the safety and reactogenicity of 2 tetravalent dengue vaccine (TDENV) candidates administered in a heterologous prime boost fashion with PIV followed by LAV 180 days later and to evaluate the safety and reactogenicity of a previously untested vaccination schedule consisting of PIV followed by LAV 90 days later.

Conditions
Dengue Virus
Being tested
TDENV-PIV, TDENV-LAV F17

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • TDENV-PIVBiological

    Dosage: 0.5 mL of DENV serotypes 1-4 (4 µg / serotype) in alum adjuvant Mode of administration: intramuscular (IM) into the subject's upper arm, deltoid area of the subject's arm; vaccination will be given in the non-dominant arm whenever possible

  • TDENV-LAV F17Biological

    Dosage: 0.5 mL of the post-transfection LAV F17 vaccine Mode of administration: subcutaneously into the upper-outer triceps/deltoid area of the subject's arm; vaccination will be given in the non-dominant arm whenever possible.

Study groups in NCT03141138
Study groupRoleWhat they receive
Group 1: TDENV-PIV on Day 0ExperimentalDosage: 0.5 mL of DENV serotypes 1-4 (4 µg / serotype) in alum adjuvant Mode of administration: intramuscular (IM) into the subject's upper arm, deltoid area of the subject's arm; vaccination will be given in the non-dominant arm whenever possible
Receives: Biological: TDENV-PIV
Group 1: TDENV-LAV F17 on Day 180ExperimentalDosage: 0.5 mL of the post-transfection LAV F17 vaccine Mode of administration: subcutaneously into the upper-outer triceps/deltoid area of the subject's arm; vaccination will be given in the non-dominant arm whenever possible
Receives: Biological: TDENV-LAV F17
Group 2: TDENV-PIV on Day 0ExperimentalDosage: 0.5 mL of DENV serotypes 1-4 (4 µg / serotype) in alum adjuvant Mode of administration: intramuscular (IM) into the subject's upper arm, deltoid area of the subject's arm; vaccination will be given in the non-dominant arm whenever possible
Receives: Biological: TDENV-PIV
Group 2:TDENV-LAV F17 on Day 90ExperimentalDosage: 0.5 mL of the post-transfection LAV F17 vaccine Mode of administration: subcutaneously into the upper-outer triceps/deltoid area of the subject's arm; vaccination will be given in the non-dominant arm whenever possible
Receives: Biological: TDENV-LAV F17

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Subjects With At Least One Local Solicited Adverse Events (AE) during the 28 Day Follow-up After Prime and Boost Vaccinations

    The number of subjects with at least one local solicited adverse event (AE), at least one general solicited AE and any solicited AE during the 28-day follow-up period for prime and boost vaccination will be tabulated with 95% confidence interval (CI) after each vaccine dose and overall.

    Measured: 28 day follow-up period

Secondary outcomes (1)
  1. Number of subjects reporting at least one of each type of unsolicited AE during the 28-day follow-up period after each vaccination

    The number of subjects reporting at least one of each type of unsolicited AE during the 28-day follow-up period after each vaccination will be tabulated with 95% CIs

    Measured: 28 day follow-up period

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 May 2017
  2. Study start8 Nov 2017
  3. Primary completion31 Oct 2019
  4. Study completion31 Dec 2021 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03141138
Sponsor's protocol ID
S-16-23
Status last verified
Mar 2021
First submitted
25 Apr 2017
Last updated
26 Mar 2021
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing TDENV-PIV and TDENV-LAV F17 in people with Dengue Virus, run by U.S. Army Medical Research and Development Command at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 32 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 26 Mar 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Subjects With At Least One Local Solicited Adverse Events (AE) during the 28 Day Follow-up After Prime and Boost Vaccinations (time frame: 28 day follow-up period). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Mar 2021.

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