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HIV InfectionsNCT03388398

Evaluation of the Population-level Impact of PMTCT Option B+ in Zimbabwe

An observational study of HIV Infections, run by University of California, Berkeley.

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

This study evaluates the impact of Zimbabwe's program for the prevention of mother-to-child HIV transmission (PMTCT) on vertical transmission of HIV infection and HIV-free survival among infants exposed to HIV. Read more about this study

Who is it for?
Ages 16 years and older
Conditions the study is for
HIV Infections
How many people
30,642 participants
Where
No sites listed yet
Study dates
Jan 2012to Jan 2019
Phase
Observational
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 16 years and older
  • All sexes
  • Child, Adult, Older adult

Study population: All study participants will be enrolled from 157 health facilities and health facility catchment areas in Harare, Mashonaland West, Mashonaland Central, Manicaland, and Matabeleland South provinces in Zimbabwe. In Zimbabwe, the catchment area of a health facility has a radius of approximately 10 km (allowing for variation due to geography). Healthcare staff, providers, and patients will be sampled from health facilities, while mother-infant pairs and mothers/caregivers will be sampled from health facility catchment areas.

Who may be able to join

  • Mother or caregiver is 16 years of age or older
  • Delivered or provides care for an infant (alive or deceased) who is or who would have been 9-18 months of age at the time of the survey
  • Able and willing to provide written informed consent
  • At least 16 years of age or older
  • Delivered an infant (alive or deceased) who is or who would have been 19-36 months of age at the time of the survey
  • Able and willing to provide written informed consent
Show all 16Show fewer
  • At least 18 years of age or older
  • Currently providing PMTCT services at one of the 157 selected facilities
  • Able and willing to provide written informed consent
  • At least 18 years of age or older
  • Currently providing ANC or ART care directly to clients at one of the 20 purposefully selected facilities
  • Splitting time as a provider between one or more of the following HIV services: HIV testing and counseling (HTC), prevention of mother-to-child transmission (PMTCT), and male circumcision (MC)
  • Able and willing to provide written informed consent
  • At least 18 years of age or older
  • Received HIV testing and counseling (HTC), prevention of mother-to-child HIV transmission (PMTCT), or male circumcision (MC) services at one of the 20 purposefully selected facilities on the day of the interview
  • Able and willing to provide verbal consent

Who cannot join

  • Mother or caregiver is younger than 16 years of age
  • Infant (alive or deceased) is not/would not have been 9-18 months of age at the time of the survey
  • Mother or caregiver is younger than 16 years of age
  • Infant (alive or deceased) is not/would not have been 19-36 months of age at the time of the survey
  • Health care staff is younger than 18 years of age
  • Health care staff is not currently providing PMTCT services at one of the 157 selected facilities
Show all 11Show fewer
  • Provider is younger than 18 years of age
  • Currently not providing ART care directly to clients at one of the 20 purposefully selected facilities
  • Does not split time as a provider between one or more of the following HIV services: HIV testing and counseling (HTC), prevention of mother-to-child HIV transmission (PMTCT), and male circumcision (MC)
  • Patient is younger than 18 years of age
  • Did not receive HIV testing and counseling (HTC), prevention of mother-to-child HIV transmission (PMTCT), or male circumcision (MC) services at one of the 20 purposefully selected facilities on day of interview

About this study

Official title: Evaluation of the Population-level Impact of Prevention of Mother-to-Child HIV Transmission Program Option B+ in Zimbabwe

This study evaluates the impact of Zimbabwe's program for the prevention of mother-to-child HIV transmission (PMTCT) on vertical transmission of HIV infection and HIV-free survival among infants exposed to HIV. The study will test the hypothesis that the accelerated PMTCT program in Zimbabwe will result in fewer new HIV infections in infants and will increase infant survival.

Read the detailed description

The World Health Organization (WHO) recommends that all pregnant women receive antiretroviral therapy (ART) during pregnancy and breastfeeding ("Option B") or ideally throughout their lives regardless of clinical stage ("Option B+"). In February 2013, Zimbabwe's Ministry of Health and Child Welfare (MoHCW) declared that Zimbabwe would begin implementing Option B+ in October of 2013. This impact evaluation utilizes serial population-based, community-level surveys to comprehensively assess the prevention of mother-to-child HIV transmission strategy (PMTCT) 'Option B+' among mother-infant pairs in Zimbabwe. The investigators will assess the population-level impact of Option B+ in Zimbabwe using serial community-based cross-sectional serosurveys with data from three time points: 2012 (pre-Option A standard of care), 2014 (post-Option A / pre-Option B+), and 2017 (post Option B+ implementation) in order to monitor population-level trends in MTCT and HIV-free infant survival.

The investigators will compare outcomes among infants from 2017 to outcomes among mother-infant pairs who participated in similar surveys conducted in 2012 and 2014. These community-level data, along with in-depth facility survey data, will also allow the investigators to examine impact heterogeneity by the extent of integration of PMTCT and ART services at the facility. Together with effectiveness data from the serosurveys, facility-level resource utilization and cost data will allow assessment of Option B+ cost-effectiveness. In addition, this study will also include a population-based, community-level survey conducted in 2017 to assess retention of mothers in ART services after weaning (19-36 months postpartum). These data will allow the investigators to assess HIV-infected mothers' retention in care at the time of the survey, when most mothers will have stopped breastfeeding

Conditions
HIV Infections
Keywords
Mother-to-child transmission of HIV (MTCT), Prevention of mother-to-child HIV transmission (PMTCT), Antiretroviral therapy (ART), Antenatal care (ANC), Pediatric infections, Pregnancy
Medical subject headings
HIV Infections

What participants receive

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

Study groups in NCT03388398
Study groupRoleWhat they receive
Mother-Infant PairsMothers or caregivers (at least 16 years of age) and their infants who are 9 to 18 months of age at the time of their survey.
Mothers or caregiversMothers or caregivers (at least 16 years of age) who are 19 to 36 months postpartum at the time of the survey.
Healthcare staffHealthcare staff (employed staff and volunteers at least 18 years of age) at all participating healthcare facilities.
ProvidersHealth care providers (at least 18 years of age) at select participating healthcare facilities.
PatientsPatients (at least 18 years of age) receiving care at select participating healthcare facilities.

What is being measured

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

  1. Vertical transmission of HIV infection

    Proportion of infants born to HIV-infected mothers who were HIV-infected

    Measured: 9-18 months after birth

  2. HIV-free survival among infants exposed to HIV

    Proportion of infants born to HIV-infected mothers who were alive and HIV-uninfected

    Measured: 9-18 months after birth

Secondary outcomes (9)
  1. Retention of mothers in antiretroviral therapy services (ART) services after weaning

    The proportion of HIV-infected mothers who were initiated on ART and who continued ART after weaning

    Measured: 19-36 months postpartum

  2. Time between weaning and discontinuation of antiretroviral therapy services (ART) among mothers who did not continue ART after weaning

    Average time between delivery and discontinuation of ART among those mothers who did not continue ART

    Measured: 19-36 months postpartum

  3. Heterogeneity of the impact of Option B+ on HIV-free survival among infants 9-18 months of age by the extent of integration of PMTCT and anti-retroviral therapy (ART) services at health facilities

    HIV-free survival in health facility catchment areas stratified by the extent of integration of PMTCT and ART services at the health facility

    Measured: Baseline

  4. Heterogeneity of the impact of Option B+ on mother-to-child transmission of HIV (MTCT) among infants 9-18 months of age by the extent of integration of PMTCT and anti-retroviral therapy (ART) services at health facilities

    MTCT in health facility catchment areas stratified by the extent of integration of PMTCT and ART services at the health facility

    Measured: Baseline

  5. Cost-effectiveness of Option B+ compared to the standard of care before Option A

    Facility costing data and HIV-free survival and MTCT in health facility catchment areas in 2012 compared to 2017

    Measured: Baseline

  6. Cost-effectiveness of Option B+ compared to Option A

    Facility costing data and HIV-free survival and MTCT in health facility catchment areas in 2012 compared to 2014

    Measured: Baseline

  7. Variability in health facility accesibility

    Accessibility of health facilities assessed using exit interviews with patients receiving care at health facilities

    Measured: Baseline

  8. Variability in health facility quality of available services

    Quality of available services at health facilities assessed using exit interviews with patients receiving care at health facilities, and clinical vignettes and time and motion studies with healthcare providers at health facilities

    Measured: Baseline

  9. Variability in health facility appropriateness of available services

    Appropriateness of available HIV testing and counseling (HTC), prevention of mother-to-child transmission of HIV (PMTCT) and male circumcision (MC) services assessed using clinical vignettes with healthcare providers at health facilities

    Measured: Baseline

Timeline

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

  1. First posted3 Jan 2018
  2. Study startJan 2012
  3. Primary completionJul 2018
  4. Study completionJan 2019

Resources

More details

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

Study design
Study type
Observational
Observational model
Other
Time perspective
Cross-sectional
Enrolment
30,642 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03388398
Sponsor's protocol ID
1R01HD080492-01
Other IDs
1R01HD080492-01
Status last verified
May 2023
First submitted
15 Dec 2017
Last updated
1 Jun 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Koyuncu A, Dufour MK, McCoy SI, Bautista-Arredondo S, Buzdugan R, Watadzaushe C, Dirawo J, Mushavi A, Mahomva A, Cowan F, Padian N. Protocol for the evaluation of the population-level impact of Zimbabwe's prevention of mother-to-child HIV transmission program option B+: a community based serial cross-sectional study. BMC Pregnancy Childbirth. 2019 Jan 8;19(1):15. doi: 10.1186/s12884-018-2146-x.

    PubMed 30621615

Questions about this trial

What is this clinical trial studying?

An observational study of HIV Infections, run by University of California, Berkeley.

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 16 inclusion and 11 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 1 Jun 2023. Status can change between updates, so confirm with the study contact before making plans.

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?

Vertical transmission of HIV infection (time frame: 9-18 months after birth). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03388398, which also lists 1 linked publication.

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 1 Jun 2023.

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