NCT06158126

Brief Summary

The primary purpose of this study is to assess the safety of long-acting injectable cabotegravir (CAB-LA) and oral pre-expose prophylaxis (PrEP) (FTC/TDF or 3TC/TDF) for the prevention of HIV during pregnancy and breastfeeding among pregnant women and their infants in Malawi. The main question the study aims to answer is: \- Do composite adverse pregnancy events, maternal health outcomes, and/or infant health outcomes differ between individuals taking oral PrEP and those taking CAB-LA? Women who are already using PrEP at the time of pregnancy diagnosis or those who initiate PrEP during pregnancy will enroll into a Safety Cohort where they will be closely followed up during pregnancy while optimizing their antenatal care (ANC) per the Malawi ANC package. Women will have access to either CAB-LA or oral PrEP and will be given an opportunity to choose one option. Women and their infants will attend a series of follow-up visits through pregnancy, birth, and the postnatal period. In addition, the study will contribute to the development of a national PrEP Pregnancy Registry which will be initially rolled out in Lilongwe and Blantyre -the two most populous cities in Malawi-before a nationwide roll out begins under the guidance of the Malawi Ministry of Health.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
621

participants targeted

Target at P75+ for phase_4

Timeline
19mo left

Started Apr 2024

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

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 Progress57%
Apr 2024Dec 2027

First Submitted

Initial submission to the registry

November 27, 2023

Completed
9 days until next milestone

First Posted

Study publicly available on registry

December 6, 2023

Completed
4 months until next milestone

Study Start

First participant enrolled

April 17, 2024

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2026

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2027

Last Updated

May 5, 2026

Status Verified

May 1, 2026

Enrollment Period

2.6 years

First QC Date

November 27, 2023

Last Update Submit

May 1, 2026

Conditions

Keywords

PrEPPregnancyBreastfeedingInfant healthHIV preventionMaternal healthEliminating mother-to-child transmission (EMTCT)

Outcome Measures

Primary Outcomes (1)

  • Rate of composite adverse pregnancy outcomes

    Rate will be calculated as the number of women with an adverse pregnancy outcome, defined as the occurrence of any one of the following events: spontaneous miscarriage (pregnancy lost before 28 weeks gestation), stillbirth (fetal death at or after 28 weeks gestation), preterm birth (delivery before 37 weeks gestation), infant born small for gestational age (birth weight of less than 10th percentile for gestational age) over the accumulated person time from enrollment through birth.

    Enrollment through birth

Secondary Outcomes (14)

  • Proportion of women developing grade 3 or higher clinical or laboratory events

    Enrollment through 52 weeks postpartum

  • Proportion of infants developing stage 3 or higher clinical or laboratory events

    Birth through 52 weeks of life

  • Proportion of infants born with congenital anomalies

    Birth through 52 weeks of life

  • Number of infants who are underweight

    Birth through 52 weeks of life

  • Proportion of infants who are underweight

    Birth through 52 weeks of life

  • +9 more secondary outcomes

Study Arms (2)

Oral PrEP (FTC/TDF or TDF/3TC) during pregnancy

ACTIVE COMPARATOR

The arm will include pregnant women who have met eligibility criteria, consented, and chosen to initiate or remain on oral PrEP (FTC/TDF or TDF/3TC) during pregnancy. Within the arm, they will be grouped according to whether they started oral PrEP before or after pregnancy diagnosis. All participants will continue to be offered oral PrEP throughout the study and will be followed up for the duration of the study. All women will be registered into the PrEP Pregnancy Registry as part of routine care.

Drug: Initiating daily oral PrEP during pregnancyDrug: Already using daily oral PrEP at the time of pregnancy diagnosis

Long-acting injectable cabotegravir (CAB-LA) during pregnancy

EXPERIMENTAL

The arm will include pregnant women who have met eligibility criteria, consented, and chosen to initiate or remain on injectable PrEP (CAB-LA) during pregnancy. Within the arm, they will be grouped according to whether they started CAB-LA before or after pregnancy diagnosis. All participants will continue to be offered CAB-LA throughout the study and will be followed up for the duration of the study. All women will be registered into the PrEP Pregnancy Registry as part of routine care.

Drug: Initiating injectable PrEP during pregnancyDrug: Already using injectable PrEP (CAB-LA) at the time of pregnancy diagnosis

Interventions

Group 1a will include pregnant women who initiate oral PrEP when already pregnant, at enrollment into the study.

Also known as: Tenofovir disoproxil fumarate (TDF)/emtricitabine (FTC) or lamivudine (3TC) (FTC/TDF or TDF/3TC)
Oral PrEP (FTC/TDF or TDF/3TC) during pregnancy

Group 1b will include women already using daily oral PrEP at the time of pregnancy diagnosis and enrollment in the study.

Also known as: Tenofovir disoproxil fumarate (TDF)/emtricitabine (FTC) or lamivudine (3TC) (FTC/TDF or TDF/3TC)
Oral PrEP (FTC/TDF or TDF/3TC) during pregnancy

Group 2a will include pregnant women who initiate injectable PrEP (CAB-LA) when already pregnant, at enrollment into the study.

Also known as: CAB-LA
Long-acting injectable cabotegravir (CAB-LA) during pregnancy

Group 2b will include women using injectable PrEP (CAB-LA) at the time of pregnancy diagnosis and enrollment into the study.

Also known as: CAB-LA
Long-acting injectable cabotegravir (CAB-LA) during pregnancy

Eligibility Criteria

Age15 Years - 55 Years
Sexfemale(Gender-based eligibility)
Gender Eligibility DetailsPregnant women
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Maternal participants:
  • Confirmed pregnancy by urine pregnancy test or ultrasound.
  • Aged 15 years or older
  • PrEP-eligible by Malawi local guidelines
  • Confirmed HIV-negative based on the local HIV testing algorithm
  • Hepatitis B surface antigen (HBsAg) negative
  • Weight \>35 kg
  • Provided informed consent and expressed willingness to participate in study activities with their infants.
  • Infant participants: Infant participants will enter the study with their mother as unborn infants. There are no specific eligibility criteria for infant participation otherwise.

You may not qualify if:

  • Maternal participants will not be eligible to enter the prospective cohort study if any of the following conditions are identified during the screening process:
  • Known to be living with HIV
  • Known allergies to CAB-LA, TDF/3TC or FTC/TDF
  • Other current significant disease process (active or chronic), substance use, or social circumstances that, in the judgment of the site investigator would make participation in the study unsafe.
  • Intention to leave the study site's catchment area of Bwaila before scheduled study exit.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Bwaila Distict Hospital

Lilongwe, Malawi

RECRUITING

Related Publications (1)

  • Saidi F, Shah S, Squibb M, Chinula L, Nakanga C, Mvalo T, Matoga M, Bula AK, Chagomerana MB, Kamanga F, Kumwenda W, Mkochi T, Masiye G, Moya I, Herce ME, Rutstein SE, Thonyiwa V, Nyirenda RK, Mwapasa V, Hoffman I, Hosseinipour MC. Evaluating the impact of HIV pre-exposure prophylaxis on pregnancy, infant, and maternal health outcomes in Malawi: PrIMO study protocol. BMC Public Health. 2024 Sep 27;24(1):2604. doi: 10.1186/s12889-024-20029-3.

MeSH Terms

Conditions

Breast Feeding

Interventions

TenofovirRacivirLamivudine

Condition Hierarchy (Ancestors)

Feeding BehaviorBehavior

Intervention Hierarchy (Ancestors)

OrganophosphonatesOrganophosphorus CompoundsOrganic ChemicalsAdeninePurinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsZalcitabineDeoxycytidineCytidinePyrimidine NucleosidesPyrimidinesHeterocyclic Compounds, 1-RingDeoxyribonucleosidesNucleosidesNucleic Acids, Nucleotides, and NucleosidesDideoxynucleosides

Study Officials

  • Friday Saidi, MBBS, MMED

    UNC Project Malawi

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Charity Nakanga, MBBS, MSc

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 27, 2023

First Posted

December 6, 2023

Study Start

April 17, 2024

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

December 1, 2027

Last Updated

May 5, 2026

Record last verified: 2026-05

Data Sharing

IPD Sharing
Will share

Deidentified individual data that supports the results will be shared beginning 9 to 36 months following publication provided the investigator who proposes to use the data has approval from an Institutional Review Board (IRB), Independent Ethics Committee (IEC), or Research Ethics Board (REB), as applicable, and executes a data use/sharing agreement with UNC

Shared Documents
STUDY PROTOCOL, SAP, ICF
Time Frame
Beginning 9 and continuing for 36 months following publication
Access Criteria
Investigator has approved IRB, IEC, or REB and an executed data use/sharing agreement with UNC
More information

Locations