ZIKAlliance Children Cohort (ZIKAllianceCH)

NCT ID: NCT03393286

Last Updated: 2022-05-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

1554 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-01-15

Study Completion Date

2022-03-30

Brief Summary

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The aim of this proposal is to evaluate the causal relationship between Zika virus (ZIKV) infections in pregnancy and congenital malformations. The study will estimate the absolute and relative risks of congenital malformations and other adverse outcomes of pregnancy among women who become infected with ZIKV during pregnancy compared to uninfected pregnant women, also leading to further validation of the Congenital Zika Syndrome.

Detailed Description

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The aim of this proposal is to evaluate the causal relationship between Zika virus (ZIKV) infections in pregnancy and congenital malformations. The study will estimate the absolute and relative risks of congenital malformations and other adverse outcomes of pregnancy among women who become infected with ZIKV during pregnancy compared to uninfected pregnant women, also leading to further validation of the Congenital Zika Syndrome.

The study will also determine the ZIKV maternal to child transmission rate and evaluate co-factors or effect modifiers that account for the large variability seen in the preliminary absolute risk estimates derived from population figures and reporting of microcephaly in different states in Brazil and across Latin America.

The study will carry out a pregnant women (PW) multicentre cohort study in areas across Latin America and the Caribbean. Women will be enrolled early in pregnancy and followed every 4 weeks, in connection with their routine antenatal care visits. At each visit, urine and blood samples will be collected, tested and stored.

Among PW reporting recent or current undifferentiated fever/rash syndrome at any point in time, the acute illness episode will be characterized in greater detail. PW with suspected ZIKV infection (i.e. meeting the Pan American Health Organization (PAHO) clinical case definition) during pregnancy will be managed according to national protocols. Irrespective of symptoms, pregnant women will be followed prospectively and revisited at birth (or after abortion) for a detailed documentation of the outcome of their pregnancy.

Live newborns will receive a detailed neonatal examination. In the course of examination of the newborns, biological samples will be collected and stored. Other potential causes of congenital abnormalities (TORCHS infections in the mother, toxic substances, chromosomal abnormalities), and potential effect modifiers (for example past flavivirus infections/vaccinations, socio-economic status) will also be assessed.

With appropriate counselling and consent, biological samples of newborns with severe abnormalities, deceased newborns, stillborn babies, and aborted foetuses from ZIKV-infected mothers will be collected to help elucidate the aetiological contribution of ZIKV in neurological and other congenital malformations.

Children of women infected with ZIKV during pregnancy - and a subset of the children born to uninfected women - will be followed prospectively after birth for the assessment of neuro-developmental milestones.

Conditions

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Zika Virus

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* Born within the Pregnant Woman cohort
* Born to mothers with confirmed ZIKA

Exclusion Criteria

\-
Maximum Eligible Age

6 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Heidelberg Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Thomas Jaenisch

PI

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Sosecali Ltd. (SOSE)

Guaqui, , Bolivia

Site Status

Fundacao Oswaldo Cruz (FIOCRUZ)

Recife, , Brazil

Site Status

Fundacao Oswaldo Cruz (FIOCRUZ)

Rio de Janeiro, , Brazil

Site Status

University of Sao Paulo

São Paulo, , Brazil

Site Status

Industrial University of Santander (UIS)

Bucaramanga, , Colombia

Site Status

Pedro Kouri Institute (IPK)

Havana, , Cuba

Site Status

INSERM

Pointe-à-Pitre, , Guadeloupe

Site Status

IMSS Mexico (IMSS)

Guadalajara, , Mexico

Site Status

National Institute of Public Health (INSP)

Mérida, , Mexico

Site Status

Universidad de Carabobo / UMC Groningen (UMCG)

Valencia, , Venezuela

Site Status

Countries

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Bolivia Brazil Colombia Cuba Guadeloupe Mexico Venezuela

References

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Avelino-Silva VI, Mayaud P, Tami A, Miranda MC, Rosenberger KD, Alexander N, Nacul L, Segurado A, Pohl M, Bethencourt S, Villar LA, Viana IFT, Rabello R, Soria C, Salgado SP, Gotuzzo E, Guzman MG, Martinez PA, Lopez-Gatell H, Hegewisch-Taylor J, Borja-Aburto VH, Gonzalez C, Netto EM, Saba Villarroel PM, Hoen B, Brasil P, Marques ETA, Rockx B, Koopmans M, de Lamballerie X, Jaenisch T; ZIKAlliance Clinical Study Group. Study protocol for the multicentre cohorts of Zika virus infection in pregnant women, infants, and acute clinical cases in Latin America and the Caribbean: the ZIKAlliance consortium. BMC Infect Dis. 2019 Dec 26;19(1):1081. doi: 10.1186/s12879-019-4685-9.

Reference Type DERIVED
PMID: 31878895 (View on PubMed)

Other Identifiers

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734548CH (EC | H2020 | RIA)

Identifier Type: -

Identifier Source: org_study_id

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