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PRIME Study

International pregnancy cohort study to evaluate the effect of influenza virus infection on pregnancy and perinatal outcomes and estimate the vaccine-preventable incidence of influenza during pregnancy among women in low- and middle-income countries - PRIME

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2018/04/012961
Enrollment
5000
Registered
2018-04-03
Start date
Unknown
Completion date
Unknown
Last updated
2023-01-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: O269- Pregnancy related conditions, unspecified

Interventions

None listed

Sponsors

Abt Associates Inc through CDC Atlanta
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: • Aged >=18 years; • Pregnant as confirmed by urine pregnancy test and/or abdominal ultrasound; • Have an estimated date of delivery (EDD) based on LMP or ultrasound o that occurs at least 8 weeks after the anticipated start date of the influenza season for women enrolled prior to that date; o that occurs at least 8 weeks after enrollment for women enrolled after the anticipated start date of the influenza season; • Meet one of the following criteria: o have had an ultrasound at OR o currently at • Plan to remain in the study area for the duration of her pregnancy and for her delivery; • Be willing and able to be contacted twice weekly by telephone call, mobile phone text message, or home visit from enrollment through the end of pregnancy;

Exclusion criteria

Exclusion criteria: • Aged • Plans for delivery outside the study area; • Unable to give consent;

Design outcomes

Primary

MeasureTime frame
â?¢Relative risk of preterm birth (37 weeks gestation based on ultrasound performed at 28 weeks gestation) among women with versus those without real- time reverse transcription polymerase chain reaction (RT-PCR)confirmed influenza virus infection during pregnancy.Timepoint: upto 6 weeks postpartum

Secondary

MeasureTime frame
â?¢ Difference in mean birth weight among all infants and among term singleton infants born to women with versus those without RT-PCR-confirmed influenza virus infection during pregnancyTimepoint: upto 6 weeks postpartum;â?¢ Frequency of illness signs and symptoms and duration of measured fever 38.0 Celsius using study-provided thermometers among pregnant women with RT-PCR-confirmed influenza.Timepoint: upto 6 weeks postpartum;Difference in mean gestational age at delivery or end of pregnancy among women with versus those without RT-PCR-confirmed influenza virus infection during pregnancyTimepoint: upto 6 weeks postpartum;Episodes of RT-PCR-confirmed influenza per 10,000 pregnant women months of observation.Timepoint: upto 6 weeks postpartum

Countries

India

Contacts

Public ContactDr Archana Patel

Lata Medical Research Foundation

dr_apatel@yahoo.com

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026