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LEARNER- Low dosE AspiRiN prEterm tRial (Angola)

A Prospective, Randomized Controlled Study to Evaluate the Effects of Daily Low Dose Aspirin in Pregnant Women With Sickle Cell Disease When Initiated at the First Trimester Versus the Second Trimester of the Gestational Period

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06417411
Acronym
LEARNER
Enrollment
450
Registered
2024-05-16
Start date
2024-03-16
Completion date
2026-03-16
Last updated
2024-05-16

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

Conditions

Sickle Cell Disease, Pregnancy Related, Pregnancy Complications, Pre-Eclampsia

Keywords

LEARNER, ANGOLA, Maternidade Lucrécia Paim, Hospital Materno Infantil Dr Manuel Pedro Azancot de Menezes, Aspirin, Capacity Building

Brief summary

This study is being conducted to evaluate the safety and effect of starting daily use of low dose (100 mg) aspirin in pregnant women with sickle cell disease, who are being followed in two county hospitals in Angola, in the first trimester versus the second trimester of the gestational period.

Detailed description

The proposed project is a prospective, randomized controlled study to evaluate the effects of daily low dose aspirin in pregnant women with Sickle Cell Disease at the first trimester versus the second trimester of the gestation period. The study will include 450 female participants of all ages, in multiple maternity hospitals in Luanda, Angola, with an official diagnosis of Sickle Cell Disease and confirmed pregnancy. Patients who consent to take part in the study will be given 100 mg aspirin once daily either at the first trimester (6-13 weeks) or the second trimester (14-27 weeks) of the gestation period. Up to 450 participants will be randomly assigned in a 1:1 ratio to the two study treatment trimester groups (225 starting the low dose of aspirin at the first trimester and 225 starting the low dose of aspirin at the second trimester). In both treatment arms, daily use of low dose aspirin will be prescribed/administered until week 36 or time of delivery, whichever comes earlier. Study Duration: Each participant will be enrolled in the study for the duration of the pregnancy as follow: Screening Visit Randomized Treatment Period Follow Up Period (6 weeks postpartum)

Interventions

Daily use of low dose aspirin.

Sponsors

FUNDACIÓN BANCARIA CAIXA D'ESTALVIS I PENSIONS DE BARCELONA
CollaboratorUNKNOWN
FUNDAÇAO CALOUSTE GULBENKIAN
CollaboratorUNKNOWN
CLINCOORD SERVICES, INC.
CollaboratorUNKNOWN
CLINCOORD PRESTAÇÃO DE SEVIÇOS, LDA ANGOLA
CollaboratorUNKNOWN
Escola Superior de Tecnologia da Saúde de Lisboa
CollaboratorOTHER
ClinCoord Research Center at Luanda Medical Center
CollaboratorUNKNOWN
Instituto Nacional de Investigacao em Saude, Angola
Lead SponsorOTHER_GOV

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
15 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* 1\. Pregnant women with Sickle Cell Disease 15 years old and older * 2\. Attending Maternidade Lucrecia Paim, Hospital Materno Infantil Dr. Manuel Pedro Azancot de Menezes, or any health commodities in the neighboring area of the referred hospitals * 3\. Willing to attend the regular consultations, and consent to take part in the study.

Exclusion criteria

* 1\. Pregnant women with Sickle Cell Disease in the third trimester (after week 27) * 2\. HIV infection * 3\. Diabetes mellitus * 4\. Chronic hypertension * 5\. Liver disease measured by laboratory indication being 3 times above the upper limit of normal * 6\. Sickle nephropathy * 7\. Multiple pregnancies * 8\. Hypersensitivity to aspirin * 9\. History of blood transfusion in the last 3 months * 10.Those who did not consent to participate in the study.

Design outcomes

Primary

MeasureTime frameDescription
Late Abortion Related Events2 yearsMeasuring the number of unintentional abortions late in the pregnancy
Life Birth Related Events2 yearsThe number of preterm births will be measured by the number of deliveries before 37 weeks gestational age.
Maternal Mortality2 yearsMeasuring the number of maternal mortalities up to 6 weeks postpartum.

Secondary

MeasureTime frameDescription
Other Fetal Events2 yearsEarly preterm delivery (less than 34 weeks of gestation), extreme preterm delivery (less than 28 weeks of gestation), actual birth weight (measured in grams), post-term delivery (more than 42 weeks of gestation) will be combined to report the number of other fetal related events.
Maternal Morbidity2 yearshypertensive disorders, vaginal bleeding, antepartum hemorrhage, and postpartum hemorrhage, will be aggregated to determine the number of morbidity events related to the mother.
Fetal Mortality Outcomes2 yearsfetal loss due to small gestational age, perinatal mortality, spontaneous abortion, and stillbirth, will be aggregated to quantify the number of fetal mortality events.

Other

MeasureTime frameDescription
Clinical Research Personnel Capacity Building2 yearsThe number of investigators and research staff successfully trained will be combined to measure the ability of conducting clinical research and data capture by otherwise research naive personnel.
Institutional Collaborations2 yearsThe number of institutions involved in the conduction of the LEARNER project will be reported to measure collaboration between Angolan scientific/medical institutions and other international research entities.

Countries

Angola

Contacts

Primary ContactTATIANA GOMES, BA/BS/Pre-MD
tatiana.gomes@clincoord.org+1 213 640 7052
Backup ContactHELENA TEIXEIRA, PhD
helena.pitangueira@clincoord.org+55 071 991853687

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 5, 2026