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HealthyPhase 1NCT02887482

GLS-5700 in Dengue Virus Seropositive Adults

A Phase 1 study testing GLS-5700 in people with Healthy and Zika, run by GeneOne Life Science, Inc. at 3 sites in Puerto Rico.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The clinical trial will assess the safety, tolerability, and immunogenicity of GLS-5700. GLS-5700 is a synthetic DNA plasmid vaccine against the Zika virus. This is a Phase 1 clinical trial of this vaccine which encodes for the premembrane-membrane and envelope regions of Zika virus. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Healthy, Zika
What is being tested?
GLS-5700
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
160 participants
Where
3 sitesPuerto Rico
Study dates
Aug 2016to Jun 2018
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 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Age 18-65 years;
  • Able to provide consent to participate and having signed an Informed Consent Form (ICF);
  • Able and willing to comply with all study procedures;
  • Women of child-bearing potential agree to use medically effective contraception (oral contraception, barrier methods, spermicide, etc.) or have a partner who is sterile from enrollment to 3 months following the last injection, or have a partner who is medically unable to induce pregnancy.
  • Sexually active men who are considered sexually fertile must agree to use either a barrier method of contraception during the study, and agree to continue the use for at least 3 months following the last injection, or have a partner who is permanently sterile or medically unable to become pregnant;
  • Seropositive for dengue virus infection.
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  • Normal screening ECG or screening ECG with no clinically significant findings;
  • Screening labs must be within normal limits or have only Grade 0-1 findings, except that creatinine may grade 2 at baseline;
  • No history of clinically significant immunosuppressive or autoimmune disease.
  • No history of dengue virus vaccination; no history of yellow fever vaccination
  • Not currently or within the previous 4 weeks taking immunosuppressive agents (excluding inhaled, topical skin and/or eye drop-containing corticosteroids, low-dose methotrexate, or prednisone at a dose less than 10 mg/day, or steroid equivalent).

Who cannot join

  • Administration of an investigational compound either currently or within 30 days of first dose;
  • Previous receipt of an investigational product for the treatment or prevention of Zika virus infection except if subject is verified to have received placebo;
  • Administration of any vaccine within 4 weeks of first dose;
  • Administration of any monoclonal or polyclonal antibody product within 4 weeks of the first dose
  • Administration of any blood product within 3 months of first dose;
  • Pregnancy or breast feeding or have plans to become pregnant during the course of the study;
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  • Negative serologic result for dengue virus (any serotype) or history of receipt of either dengue virus or yellow fever virus vaccination at any time in the past;
  • Positive serologic test for HIV, hepatitis B surface antigen (HBsAg); or any potentially communicable infectious disease as determined by the Principal Investigator or Medical Monitor;
  • Positive serologic test for hepatitis C (exception: successful treatment with confirmation of sustained virologic response);
  • Baseline evidence of kidney disease as measured by creatinine greater than 1.5 (CKD Stage II or greater);
  • Baseline screening lab(s) with Grade 2 or higher abnormality;
  • Chronic liver disease or cirrhosis;
  • Immunosuppressive illness including hematologic malignancy, history of solid organ or bone marrow transplantation;
  • Current or anticipated concomitant immunosuppressive therapy (excluding inhaled, topical skin and/or eye drop-containing corticosteroids, low-dose methotrexate, or prednisone at a dose equal to or greater than 10 mg/day, or steroid equivalent);
  • Current or anticipated treatment with TNF-α inhibitors such as infliximab, adalimumab, etanercept;
  • Prior major surgery or any radiation therapy within 4 weeks of group assignment;
  • Any pre-excitation syndromes, e.g., Wolff-Parkinson-White syndrome;
  • Presence of a cardiac pacemaker or automatic implantable cardioverter defibrillator (AICD)
  • Metal implants within 20 cm of the planned site(s) of injection;
  • Presence of keloid scar formation or hypertrophic scar as a clinically significant medical condition at the planned site(s) of injection.
  • Prisoner or subjects who are compulsorily detained (involuntary incarceration) for treatment of either a physical or psychiatric illness;
  • Active drug or alcohol use or dependence that, in the opinion of the investigator, would interfere with adherence to study requirements or assessment of immunologic endpoints; or
  • Not willing to allow storage and future use of samples for Zika virus related research
  • Any illness or condition that in the opinion of the investigator may affect the safety of the subject or the evaluation of any study endpoint.

Trial locations and contacts

3 sites in 1 country.

Puerto Rico3 sites
  • Clinical Research of Puerto Rico

    San Juan, 00874

  • Fundacion De Investigation

    San Juan, 00909

  • University of Puerto Rico

    San Juan, 00936

Other trials in Puerto Rico

About this study

Official title: Phase I, Placebo-Controlled, Double-Blind Study To Evaluate The Safety, Tolerability, AND Immunogenicity Of GLS-5700, Administered ID Followed By Electroporation In Dengue Virus-Seropositive Adults

The clinical trial will assess the safety, tolerability, and immunogenicity of GLS-5700. GLS-5700 is a synthetic DNA plasmid vaccine against the Zika virus. This is a Phase 1 clinical trial of this vaccine which encodes for the premembrane-membrane and envelope regions of Zika virus.

Zika virus, first discovered in the Zika forest in 1947, has caused a large epidemic in South America, Central America, and the Caribbean islands commencing in late 2014 or early 2015. Zika virus can cause significant neurologic disease to include Guillain Barre Syndrome in adults and microcephaly and other birth defects among children born to mothers who are infected during pregnancy. At present no vaccines or treatments have been approved for Zika virus infection.

Read the detailed description

GLS-5700 contains a single plasmid containing DNA encoding for pre-membrane and envelope (prME) proteins of the Zika virus.

Conditions
Healthy, Zika
Being tested
GLS-5700, Placebo
Keywords
DNA, Vaccine
Medical subject headings
Zika Virus Infection

What participants receive

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

  • GLS-5700Biological

    GLS 5700 at 2 mg DNA/dose

  • PlaceboBiological

Study groups in NCT02887482
Study groupRoleWhat they receive
PlaceboExperimentalPlacebo at 0 mg DNA/dose
Receives: Biological: Placebo
GLS-5700ExperimentalGLS 5700 at 2 mg DNA/dose. GLS-5700 contains a single plasmid containing DNA encoding for pre-membrane and envelope (prME) proteins of the Zika virus
Receives: Biological: GLS-5700

What is being measured

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

  1. Mean change from baseline in safety laboratory measures

    Measured: Day 0 through Week 14

  2. Incidence of solicited adverse events after vaccination

    Measured: Day 0 through Week 14

  3. Incidence of unsolicited adverse events after vaccination

    Measured: Day 0 through Week 14

  4. Incidence of serious adverse events

    Measured: Day 0 through Week 14

Secondary outcomes (4)
  1. Binding antibody titers to Zika envelope

    Measured: Day 0 through Week 60 following first dose

  2. Neutralizing antibody response against Zika virus

    Measured: Day 0 through Week 60 following first dose

  3. T cell response

    Measured: Day 0 through Week 60 following first dose

  4. Mean change from baseline for safety measures and adverse events

    Measured: Day 0 through Week 60

Timeline

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

  1. First posted2 Sep 2016 (estimated)
  2. Study startAug 2016
  3. Primary completionOct 2017
  4. Study completionJun 2018

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
160 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02887482
Sponsor's protocol ID
Zika-002
Status last verified
Jan 2022
First submitted
24 Aug 2016
Last updated
20 Jan 2022
Results posted
No
Data monitoring committee
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing GLS-5700 in people with Healthy and Zika, run by GeneOne Life Science, Inc. at 3 sites in Puerto Rico.

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 11 inclusion and 24 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: finished, as of the sponsor's last update on 20 Jan 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in Puerto Rico. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Mean change from baseline in safety laboratory measures (time frame: Day 0 through Week 14). The study lists 4 primary outcomes in all. 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 20 Jan 2022.

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