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Completed

NCT Number: NCT03263195

Prospective Cohort Study of HIV and Zika in Infants and Pregnancy

The purpose of this study is to compare the incidence of Zika virus (ZIKV) infection among pregnant women with and without Human Immunodeficiency Virus (HIV) infection and to determine the risk of adverse maternal and child outcomes associated with ZIKV/HIV co-infection across clinical sites in the continental United States (U.S.), Puerto Rico (P.R.) and Brazil.

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Key information

Conditions

HIV Arbovirus Infections Flaviviridae Infections Flavivirus Infections Infections Mosquito-Borne Diseases Pregnant Women RNA Virus Infections Vector Borne Diseases Virus Diseases Zika Virus Zika Virus Infection

Age range

15 year and older

Sex eligibility

Female

Study type

Observational

Primary location

SOM Federal University Minas Gerais Brazil NICHD CRS, Belo Horizonte, Minas Gerais, Brazil

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About this study

This is a two-phase prospective international cohort study of pregnant women and their infants from those pregnancies whose goals are to compare the incidence of ZIKV infection among pregnant women with and without HIV infection and to determine the risk of adverse maternal and child outcomes associated with ZIKV/HIV co-infection across clinical sites in the continental U.S., P.R. and Brazil.

Phase I will enroll pregnant women/infant pairs who are: (1) infected with HIV only; (2) infected with ZIKV only; (3) infected with HIV and ZIKV; and (4) not infected with HIV or ZIKV. Phase I will assess the feasibility of enrolling a total of 200 pregnant women/infant pairs within a year, with a target of 150 HIV-infected women, 50 HIV-uninfected women from the continental U.S. sites only, and a minimum of 20 who are co-infected with HIV and ZIKV by the end of pregnancy.

Should the feasibility of Phase I prove successful, Phase II will commence by enrolling up to 1,800 additional pregnant women/infant pairs to the 4 groups described above. The comparison group of HIV-uninfected pregnant women/infant pairs from P.R and Brazil (ZIKV-infected and uninfected) will be obtained from data collected in the concurrent International Prospective Observational Cohort Study of Zika in Infants and Pregnancy (ZIP study).

All HIV-infected and uninfected study participants will be tested for ZIKV. Enrolled women will be followed throughout their pregnancy and up to six weeks postpartum. Infants born to enrolled women will be followed for a full year after birth. Thereafter, the infants born to women at continental U.S. and P.R. sites also implementing the Surveillance Monitoring for Antiretroviral Therapy (ART) Toxicities (SMARTT) study may be followed up yearly until adulthood through SMARTT depending on the availability of funds.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Maternal

  • Provides written informed consent (IC) (or assent and parent(s)/legal guardian(s) permission, where required per state or country regulations).
  • Age 15 years or older at enrollment.
  • Confirmation of pregnancy by βhCG measurement in blood or urine or fetal ultrasound (US) heart tones present.
  • Based on pregnancy calculator or fetal US: Confirmation of being at <18 weeks gestational age (GA) of pregnancy or at any GA if presents with acute ZIKV-like symptoms (i.e., fever, rash, arthralgia, myalgia, pruritus, headache, eye pain, and conjunctivitis) and has laboratory-confirmed ZIKV infection by ZIKV RNA detection.
  • Plans on remaining in the area of the current study site or if moving, within an area of any other study site, for the duration of her and her child's participation.
  • Willingness of parent(s)/legal guardian(s) to provide written consent to enroll the infant from the current pregnancy once delivered.

Has met one of the following three ZIKV-exposure risk categories:

  • Has resided in for at least three months or traveled within the last three months to a country or United States (U.S.) territory with active, cautionary, or previously active or cautionary ZIKV transmission based on the list found at http://www.cdc.gov/zika/geo/active-countries.html; or
  • Sexual partner has resided in or traveled within the last six months to a country or U.S. territory with active, cautionary, or previously active or cautionary ZIKV transmissions, or was diagnosed with ZIKV within the previous six months; or
  • Household member has been diagnosed with ZIKV infection or has traveled since the woman's last menstrual period (LMP) to a country or U.S. territory with active, cautionary, or previously active or cautionary ZIKV transmission.
  • For HIV-infected women only: Laboratory evidence or clinical criteria for a confirmed case of HIV infection per Centers for Disease Control and Prevention (CDC) Surveillance Case Definition for HIV, 2014 (Section 1.1.1 or Section 1.1.2) http://www.cdc.gov/mmwr/preview/mmwrhtml/rr6303a1.htm.

Infant

  • Born to an enrolled mother.
  • Parent(s)/legal guardian(s) provided written IC for his or her child to participate.

Exclusion criteria

Maternal:

  • Incarcerated or placed in detention.
  • Enrolled in other clinical research (including other ZIKV research) requiring blood collection, which in combination with HIV ZIP evaluations would exceed a total blood draw volume of 50 mL in an eight-week period and/or blood collection would be required more frequently than two times per week.

Infant:

•Enrolled in other clinical research (including other ZIKV research) requiring blood collection, which in combination with HIV ZIP evaluations, would exceed three mL per kg in an eight week period and/or blood collection would be required more frequently than two times per week.

Treatment and study plan

Primary outcomes

  1. Enrollment (150 HIV-infected and 50 HIV-uninfected Pregnant Women Within One Year, With a Minimum of 20 of These Women Having HIV/ZIKV Co-infection by Their End of Pregnancy).

    Time frame: At the time of delivery of all those enrolled up to 1 year after the first enrollment

    This outcome measured feasibility of enrolling 150 pregnant women living with HIV and 50 pregnant women without HIV, with a minimum of 20 of these women having HIV/ZIKV co-infection by their end of pregnancy

  2. Viral Suppression (in HIV-infected Women With ZIKV Co-infection Compared to Those Without ZIKV Co-infection During Pregnancy) at the Time of Delivery.

    Time frame: Maternal viral load at delivery

    This outcome intended to measure HIV suppression at the time of delivery among women living with HIV with and without ZIKV infection during pregnancy. Note there were no women with ZIKV infection in pregnancy. Viral suppression was defined at different thresholds (<40 copies/mL, <400 copies/mL, <1000 copies/mL).

  3. Incidence of ZIKV Infection (Among Pregnant Women With HIV Infection Compared to Those Without HIV Infection).

    Time frame: Maternal baseline to delivery

    Cumulative incidence of ZIKV infection during pregnancy (among pregnant women with HIV infection compared to those without HIV infection).

  4. Incidence of Adverse Pregnancy Outcomes (in Women Co-infected With HIV and ZIKV, Women Infected With Either HIV or ZIKV Alone, and Doubly Uninfected Women).

    Time frame: At time of delivery

    Adverse pregnancy outcomes included miscarriage, stillbirth and preterm delivery. Note there were no women with ZIKV infection in pregnancy.

    Miscarriage was defined as fetal demise at <20 weeks of gestation. Stillbirth was defined as fetal demise at ≥20 weeks of gestation. Preterm delivery was defined as delivery at <37 weeks of gestation.

  5. Incidence of Vertical Transmission of HIV and/or ZIKV (in Women Co-infected With HIV and ZIKV and Women Infected With Either HIV or ZIKV Alone).

    Time frame: Infant birth to 12 months

    Cumulative incidence of confirmed HIV infection among enrolled infants. Note there were no women with ZIKV infection in pregnancy so therefore no risk of transmission of ZIKV to any infants.

  6. Incidence of Congenital Malformations (Among Offspring of Women Co-infected With HIV and ZIKV, Women Infected With Either HIV or ZIKV Alone, and Doubly Uninfected Women).

    Time frame: Infant birth, 3 months

    Cumulative incidence of congenital malformations. Note there were no women with ZIKV infection in pregnancy.

    Observed major congenital malformations included: anhydramnios, cerebral ventriculomegaly, clubfoot (unresolved), Down syndrome, hydrops, hypospadias, patient ductus arteriosus, polydactyly (left foot), Potter syndrome, short stature, syndactyly (left foot, 1st and 2nd toes).

    Observed minor congenital malformations included: clubfoot (resolved), cryptorchidism (bilateral), dislocated hip, heart defect (patent foramen ovale), heart murmur (unresolved), hemangioma, hip dysplasia, hydrocele, inguinal hernia, head circumference -3 ≤ z-score <-2, persistent ductus arteriosus (resolved), plagiocephaly, restrictive ductus arteriosus, renal pyelectasis, sacral dimple, small perimembranous ventricular septal defect, stenosis of nasolacrimal duct, umbilical hernia.

  7. Incidence of Other Adverse Outcomes Among Offspring of Women Co-infected With HIV and ZIKV, Women Infected With Either HIV or ZIKV Alone.

    Time frame: Infant birth to 12 months

    Other adverse outcomes included microcephaly, neonatal dealth, central nervous system (CNS) malformation, hydrops, and ocular abnormalities. Note there were no women with ZIKV infection in pregnancy.

    Microcephaly was defined as head circumference less than a z-score of -3 at birth or 3 month visit.

    Neonatal death was defined as death within 28 days of life. Observed CNS malformations included: cerebral ventriculomegaly. Ocular abnormalities included both structural and functional ophthalmologic abnormalities.

  8. Weight Among Children With or Without in Utero Exposure to HIV and/or ZIKV

    Time frame: Infant Birth, 3 months, 6 months, 12 months

    Weight as a measure of growth. Note there were no women with ZIKV infection in pregnancy.

  9. Length and Head Circumference Among Children With and Without in Utero Exposure to HIV and/or ZIKV

    Time frame: Infant Birth, 3 months, 6 months, 12 months

    Length and head circumference as measures of growth. Note there were no women with ZIKV infection in pregnancy.

  10. Audiologic Function Among Children With or Without in Utero Exposure to HIV and/or ZIKV

    Time frame: Within one month of infant birth, 3 months, 6 months, 12 months

    Audiologic function as assessed by OAE test reported. Note there were no women with ZIKV infection in pregnancy.

  11. Ophthalmologic Structure and Function Among Children With or Without in Utero Exposure to HIV and/or ZIKV

    Time frame: Within one month of infant birth, 12 months;

    Ocular abnormalities included both structural and functional ophthalmologic abnormalities. Note there were no women with ZIKV infection in pregnancy.

  12. Neurodevelopment Among Children With or Without in Utero Exposure to HIV and/or ZIKV

    Time frame: Infant 3 months, 6 months, 12 months

    Infant neurodevelopment was assessed by either the Bayley III or Ages and Stages Questionnaires- 3rd Edition. Combined results reported. Note there were no women with ZIKV infection in pregnancy.

Sponsors and collaborators

Lead sponsor

Westat

Other

Collaborators

  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
  • National Institute of Allergy and Infectious Diseases (NIAID)

Registry information

Acronym: HIV ZIP

Important dates

Study start
2017
Primary completion
2020
Study completion
2020
First posted
Aug 28, 2017
Registry last updated
Jan 14, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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