NCT05904145

Brief Summary

Access to quality antenatal care (ANC) and postnatal care (PNC), including maternal, newborn, and infant services, is integral to reducing adverse pregnancy-related health outcomes and promoting positive birth experiences. The World Health Organization (WHO) recommends a total of eight ANC visits for pregnant women. However, the ANC coverage rate remains considerably lower among more vulnerable populations, and the quality of care that women receive is inconsistent, often poor, and frequently fails to detect risks in a timely fashion or adequately prepare women for the birth process. While rates of facility-based delivery are on the rise worldwide, disparities persist and the quality of care across facilities remains uneven. Even less information is available on PNC, where services beyond routine immunizations may not be widely available, especially in resource-poor regions. Additionally, limited evidence exists on innovative service delivery approaches and how to effectively scale tested maternal and newborn health (MNH) interventions. This coupled with the fragmented datasets from smaller studies limit our ability to advocate for policy change. The Pregnancy Risk Stratification Innovation and Measurement Alliance (PRiSMA) is implementing a harmonized open cohort study that seeks to evaluate pregnancy risk factors and their associations with adverse pregnancy outcomes, including stillbirth, neonatal mortality and morbidity, and maternal mortality and severe morbidity. The goals are to develop a harmonized data set to improve understanding of pregnancy risk factors, vulnerabilities, and morbidity and mortality and to estimate the burden of these risk factors and outcomes in LMICs. Ultimately, these data will inform development of innovative strategies to optimize pregnancy outcomes for mothers and their newborns.

Trial Health

83
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
267,897

participants targeted

Target at P75+ for all trials

Timeline
32mo left

Started Aug 2022

Longer than P75 for all trials

Geographic Reach
5 countries

5 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress59%
Aug 2022Dec 2028

Study Start

First participant enrolled

August 1, 2022

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

October 14, 2022

Completed
8 months until next milestone

First Posted

Study publicly available on registry

June 15, 2023

Completed
5.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2028

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2028

Last Updated

June 24, 2025

Status Verified

June 1, 2025

Enrollment Period

6.4 years

First QC Date

October 14, 2022

Last Update Submit

June 18, 2025

Conditions

Keywords

Antenatal Care (ANC)Postnatal Care (PNC)Maternal Newborn Health

Outcome Measures

Primary Outcomes (8)

  • Maternal Mortality

    Death from any cause related to or aggravated by pregnancy or its management (excluding accidental or incidental causes) during pregnancy and childbirth or within 42 days of termination of pregnancy, irrespective of the duration and site of the pregnancy.

    Assessed from time of pregnancy identification (on average, 10-20 weeks gestational age), through delivery or termination of pregnancy, and then 42 days postpartum

  • Composite Severe Maternal Outcomes

    Composite outcome of maternal deaths + near-miss cases + potentially life-threatening complications + critical intervention.

    Assessed through 12 months postpartum

  • Maternal Anemia

    Low hemoglobin levels throughout pregnancy and labor and delivery, classified as mild (10-10.9 g/dL), moderate (7-9.9 g/dL), or severe (\<7 g/dL). Low hemoglobin levels in the postpartum period, classified as mild (11-11.9 g/dL), moderate (8-10.9 g/dL), or severe (\<8 g/dL).

    Assessed from time of pregnancy identification (on average, 10-20 weeks gestational age) through 6 months postpartum

  • Stillbirth

    Delivery of a fetus showing no signs of life, as indicated by absence of breathing, heartbeat, pulsation of the umbilical cord, or definite movements of voluntary muscles. The primary definition for the study is death prior to delivery of a fetus at \>=20 weeks of gestation (or \>350 g weight, if gestational age is unavailable). Additionally, we will analyze time-specific definitions: Early stillbirth (20-27 weeks), Late stillbirth (28-36 weeks), Term stillbirth (\>=37 weeks), and WHO stillbirth (\>=28 weeks).

    Assessed at delivery

  • Neonatal Mortality

    Death of a live-born baby during the first 28 days of life from any cause.

    Assessed delivery to 28 days of life

  • Preterm Birth

    Delivery prior to 37 completed weeks of gestation of a birth (live or stillbirth). Further classified as extremely preterm (\<28 weeks), very preterm (28-32 weeks), and moderate to late preterm (32-37 weeks). For these, gestational age at birth will be determined by the best obstetric estimate: last menstrual period, Ultrasound (method to be determined), and ACOG algorithm.

    Assessed at delivery

  • Low Birth Weight

    Defined as birth weight \<2500 g and very low birth weight \<1500 g.

    Assessed at delivery or within 72 hours for home births

  • Small-for-Gestational-Age (SGA)

    Combined gestational age information and birthweight will be used to further categorize into: preterm-SGA, preterm-AGA, term-SGA, term-AGA.

    Assessed at delivery

Secondary Outcomes (20)

  • Late Maternal Mortality

    Assessed from 42 days postpartum up to one year

  • Preeclampsia

    Assessed from time of pregnancy identification (on average, 10-20 weeks gestational age) through 42 days postpartum

  • Preterm Birth Indication

    Assessed at delivery

  • Preterm Premature Rupture of Membranes (PPROM)

    Assessed at <37 weeks of gestation

  • Gestational Hypertension

    : Assessed from 20 weeks gestational age through delivery

  • +15 more secondary outcomes

Eligibility Criteria

Age15 Years+
Sexfemale
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The investigators will identify, screen, and enroll pregnant participants through pregnancy surveillance systems, with a goal of identifying pregnancies prior to 20 weeks of pregnancy. Pregnant women will be assessed at \<20, 20, 28, 32, and 36 weeks gestation, at labor and delivery, and at 3 days and 1, 4, 6, 26, and 52 weeks postpartum. Infants will similarly be assessed at 3 days and 1, 4, 6, 26, and 52 weeks of age.

You may qualify if:

  • Lives within the study catchment area;
  • Meets minimum age requirement in study site country:
  • Ghana: 15 years of age;
  • Kenya: 18 years of age or those who meet the criteria of emancipated minors;
  • Pakistan: 15 years of age or those who meet the criteria of emancipated minors;
  • Zambia: 15 years of age;
  • India: 18 years of age
  • Intrauterine pregnancy \<20 weeks gestation verified via ultrasound;
  • Provides informed consent.

You may not qualify if:

  • Nonviable (e.g. ectopic or molar) pregnancy;
  • Plans to relocate outside of the study catchment area during pregnancy and/or postpartum.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (5)

Kintampo Health Research Centre

Kintampo, Ghana

RECRUITING

Christian Medical College (CMC) Vellore

Vellore, India

RECRUITING

Kenya Medical Research Institute-Center for Global Health Research

Kisumu, Kenya

RECRUITING

Aga Khan University

Karachi, Pakistan

RECRUITING

University of North Carolina-Global Projects Zambia

Lusaka, Zambia

RECRUITING

Related Publications (3)

  • Pregnancy Risk, Infant Surveillance, and Measurement Alliance (PRISMA) Investigators. Pregnancy Risk, Infant Surveillance, and Measurement Alliance (PRISMA) Maternal and Newborn Health Study: protocol for a multisite, prospective, open cohort study of pregnancy and postpartum health outcomes in South Asia and sub-Saharan Africa. BMJ Open. 2026 Jan 20;16(1):e104512. doi: 10.1136/bmjopen-2025-104512.

  • Smith ER, Hoodbhoy Z, Hotwani A, Jehan F, Khan A, Nisar I, Yazdani N, Benjamin SJ, Cherian AG, Mohan VR, Varghese S, Vijayalekshmi B, Wylie BJ, Chatterjee L, Dang A, Venketeshwar R, Baumann SG, Mores C, Pan Q, Sudfeld CR, Akelo V, Mwebia WK, Otieno K, Ouma G, Owuor H, Were J, Adu-Gyasi D, Agyemang V, Newton S, Tawiah C, Jadaun AS, Mazumder S, Sharma N, Ugwu LG, Benneh-Akwasi Kuma A, Freeman B, Kasaro MP, Mbewe FM, Mwape H, Resop RS, Spelke MB, Asante KP; Redefining Maternal Anemia in Pregnancy and Postpartum (ReMAPP) Study Investigators. Protocol for the Redefining Maternal Anemia in Pregnancy and Postpartum (ReMAPP) study: A multisite, international, population-based cohort study to establish global hemoglobin thresholds for maternal anemia. PLoS One. 2025 Jul 28;20(7):e0321943. doi: 10.1371/journal.pone.0321943. eCollection 2025.

  • Naz S, Jaffar A, Yazdani N, Kashif M, Hussain Z, Khan U, Farooq F, Nisar MI, Jehan F, Smith E, Hoodbhoy Z. Cohort profile: the Pregnancy Risk Infant Surveillance and Measurement Alliance (PRISMA) - Pakistan. BMJ Open. 2023 Dec 10;13(12):e078222. doi: 10.1136/bmjopen-2023-078222.

Central Study Contacts

Emily R Smith, ScD, MPH

CONTACT

Jaime Marquis, MPH

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Princiapl Investigator

Study Record Dates

First Submitted

October 14, 2022

First Posted

June 15, 2023

Study Start

August 1, 2022

Primary Completion (Estimated)

December 31, 2028

Study Completion (Estimated)

December 31, 2028

Last Updated

June 24, 2025

Record last verified: 2025-06

Locations