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Arbovirus DiseasePIANONCT05153018

Population Immunity AgaiNst mosquitO-borne Diseases in Vanuatu

A study testing Blood collection in people with Arbovirus Disease and Zika, run by Institut Pasteur at 4 sites in Vanuatu.

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 Pacific region is facing several emerging and neglected diseases notably mosquito-borne diseases as malaria or arboviroses among which dengue, Ross River, chikungunya and Zika. Read more about this study

Who is it for?
Ages 6 years and olderHealthy volunteers can take part
Conditions the study is for
Arbovirus Disease, Zika, Dengue
What is being tested?
Blood collection
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,122 participants
Where
4 sitesVanuatu
Study dates
17 Oct 2022to 31 May 2023
Phase
Interventional
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 6 years and older
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Who may be able to join

  • Individuals informed of the research and having given their written consent to participate in the study
  • Individuals aged 6 years old or more
  • Individuals living in Vanuatu for more than 6 months
  • Individuals informed of the research, its objectives and procedure

Who cannot join

  • Tourists and people present in Vanuatu for less than 6 months
  • Persons intellectually disabled or under guardianship
  • Persons suffering from a febrile syndrome
  • Missing information related to age or hometown
  • Children weighting less than 18 kg

Trial locations and contacts

4 sites in 1 country.

Vanuatu4 sites
  • Blood centers, hospitals, health facilities

    Luganville

  • Schools

    Luganville

  • Blood centers, hospitals, health facilities

    Port Vila

  • Schools

    Port Vila

About this study

The Pacific region is facing several emerging and neglected diseases notably mosquito-borne diseases as malaria or arboviroses among which dengue, Ross River, chikungunya and Zika. These diseases are an important cause of illness and death in the Pacific and the occurrence of arboviruses has increased in the recent years. In humans, these mosquito-borne diseases often have very similar clinical presentations (an acute febrile syndrome often self-limiting). However, these infections can progress to severe and fatal prognosis.

Numerous arboviroses outbreaks and in particular dengue outbreaks have affected Vanuatu for decades. Except for DENV and Zika for which epidemiological and virological data are available for Vanuatu, the knowledge on chikungunya and Ross River circulation is very limited and needs to be defined as both viruses have intensively circulated in the region in the past. Knowledge of the level of immune protection of the population for these mosquito-borne diseases is incomplete. For this purpose, seroprevalence studies that intend to retrospectively look for antibodies (IgG) as an evidence of previous infections by a specific pathogen would be highly informative. Knowing the serological profile of the Vanuatu population for dengue and other arboviruses as Ross River, chikungunya and Zika that could have affected the country in the past would be useful in defining the population likely to be infected by future epidemics.

Read more

COVID-19 pandemic caused by SARS-CoV-2 as caused over 520 million cases since December 2019. Vanuatu has been relatively spared from the pandemic due to the establishment of a sanitary sas involving strict border control. On 04 March 2022, an active COVID-19 case was confirmed at Vila Central Hospital who had no travel history, indicating transmission at community level. Overall, a total of 8487 confirmed cases have been reported since the beginning of 2022.

Local vaccination campaign was initiated in July 2021. A seroprevalence study documenting population immunity to COVID-19 will inform of the breadth of COVID-19 epidemic in Vanuatu, contributing to the evaluation of undetected infections rate. This identification of vulnerable populations will inform local public Health strategies, including targeted vaccination campaigns.

Read the detailed description

The PIANO project is a non-comparative observational prospective cross-sectional descriptive survey on a representative random sample of the population.

The study will be conducted on a 4-mL blood sample collected in a dry tube from 1,200 non-febrile individuals aged older than 6 years old.

The main objective of the current project is to determine the seroprevalence of dengue, Zika, chikungunya, Ross River and COVID-19 in Vanuatu.

Being tested
Blood collection
Keywords
Serology, Epidemiology, Vanuatu
Medical subject headings
Zika Virus Infection, Dengue, Ross River Virus Infection, Chikungunya Fever, COVID-19

What participants receive

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

  • Blood collectionOther

    a 4-mL blood sample collected in a dry tube

Study groups in NCT05153018
Study groupRoleWhat they receive
A representative random sample of the populationOther1,200 non-febrile individuals aged older than 6 years old
Receives: Other: Blood collection

What is being measured

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

  1. Determination of the seroprevalence of dengue, Zika, chikungunya, Ross River and Covid-19 in Vanuatu.

    Exploration of vector-borne diseases seroprevalence in the main Provinces usually involved in outbreaks, the study will be implemented in the main cities of Efate, Santo, Tanna and Malekula Islands namely Port Vila, Luganville, Isangel and Lakatoro along with rural parts connected to the main city by main roads.

    Measured: 1 year

Timeline

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

  1. First posted10 Dec 2021
  2. Study start17 Oct 2022
  3. Primary completion31 May 2023
  4. Study completion31 May 2023

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 N/A
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
1,122 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05153018
Sponsor's protocol ID
2020-100
Acronym
PIANO
Status last verified
May 2024
First submitted
29 Nov 2021
Last updated
23 May 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Blood collection in people with Arbovirus Disease and Zika, run by Institut Pasteur at 4 sites in Vanuatu.

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 4 inclusion and 5 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 23 May 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in Vanuatu. 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.

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?

Determination of the seroprevalence of dengue, Zika, chikungunya, Ross River and Covid-19 in Vanuatu. (time frame: 1 year). 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 23 May 2024.

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