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CompletedNCT04955717Updated Feb 3, 2025Results posted

Antenatal Chlamydia Trachomatis and Neisseria Gonorrhoeae Testing to Prevent Adverse Neonatal Consequences

An interventional study of Chlamydia trachomatis and Neisseria gonorrhoeae screening using the GeneXpert in Chlamydia Trachomatis Infection, Neonatal Infection and Preterm Birth, sponsored by University of Southern California. Completed at 2 sites in 2 countries. Open to female participants aged 15 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-02-03.

Sponsored by University of Southern California · Not applicable, Interventional, and Screening

From the registry’s dates

  • Registered 4 months after the study started (first participant enrolled Feb 2021, registered Jun 2021).
Phase
Not applicable
Study type
Interventional
Enrollment
500
Allocation
Non-randomized
Ages
15 Years and older
Sex
Female
01

Study summary

To assess the effectiveness of Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) testing and treatment during pregnancy to reduce adverse pregnancy and birth outcomes compared to the standard of care (treatment based on symptoms and signs).

Read the detailed description

In this study investigators are conducting a two-arm, cluster randomized trial to assess the effectiveness of Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) testing and treatment during pregnancy to reduce adverse pregnancy and birth outcomes compared to the standard of care (treatment based on symptoms and signs). Investigators will enroll 500 asymptomatic pregnant women in the testing and treatment clinics, and they will receive CT and NG testing and appropriate treatment at their first antenatal care visit and at a visit during their third trimester. An additional 250 asymptomatic pregnant women will be enrolled in the standard of care clinics, and they will receive syndromic management with additional support for partner notification. All participants will be tested for CT and NG at the first postnatal visit and those who test positive will be offered infant testing. Investigators will determine if antenatal testing and treatment reduces maternal infections at delivery, preterm birth, low birth weight, and neonatal CT/NG infection. This study will provide evidence to help evaluate the effects of testing on vertical transmission and clinically important pregnancy neonatal health outcomes, and to evaluate and understand biological correlates of transmission.

02

Conditions studied

  • Chlamydia Trachomatis Infection
  • Neonatal Infection
  • Preterm Birth
  • Gonorrhea

Keywords

  • chlamydia trachomatis
  • neisseria gonorrhoeae
03

In context

Infections

6,687 studies on the registry are indexed under Infections; 807 are open to participants now.

This study's enrollment of 500 is above the median of 120 across 4,200 interventional studies indexed under Infections.

Browse Infections studies →

Lead sponsor

University of Southern California is the lead sponsor of 773 studies on the registry; 135 are open to participants now.

Of its 68 completed or terminated interventional studies of FDA-regulated products, 32 (47%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
15 Years and older
Sexes eligible
Female
Accepts healthy volunteers
Yes

Inclusion criteria

  • Age ≥ 15 years,
  • Currently pregnant,
  • Attending first ANC visit,
  • 27 weeks gestation or less
  • Not currently experiencing CT/NG-related symptoms (determined by validated screening tool),
  • Not treated for CT/NG in the past 30 days,
  • Willingness to provide self-collected specimens for CT/NG testing (for the STI-testing group, this will take place at their first ANC visit, at another visit in their third trimester, and at postnatal care. For the standard of care group, samples will only be collected at postnatal care),
  • Willingness to return for a test of cure if CT/NG test is positive during antenatal care,
  • Will reside in Gaborone through the time of delivery and 1st postnatal visit,
  • Willingness to have neonates tested for CT/NG at their first postnatal visit,
  • Mentally competent to understand the informed consent.

Exclusion criteria

Exclusion Criteria:

  • Not mentally competent to understand study procedures or give informed consent,
  • Individuals \< 15 years,
  • Men,
  • Women who are not pregnant,
  • Pregnant women not attending their first antenatal visit,
  • Pregnant women at >27 weeks gestation
  • Pregnant women with current STI-related symptoms (will receive standard of care),
  • Treated for an STI in the past 30 days.
05

Study design

Phase
Not applicable
Primary purpose
Screening
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
500 participants (actual)

Study arms

  • Experimental
    Testing and treatment

    Participants will receive CT and NG testing and treatment (if necessary) at their first antenatal care visit and a visit during their third trimester. Women will also receive support for partner notification. All women will receive postnatal testing and treatment. Those who test positive at the postnatal visit will be offered infant testing.

    Other: Chlamydia trachomatis and Neisseria gonorrhoeae screening using the GeneXpert

  • No intervention
    Standard of care

    Participants will receive the standard of care for STI management, which is treatment based on signs and symptoms. Women will also receive support for partner notification. All women will receive postnatal testing and treatment. Those who test positive at the postnatal visit will be offered infant testing.

Interventions

  • OtherChlamydia trachomatis and Neisseria gonorrhoeae screening using the GeneXpert

    Chlamydia trachomatis and Neisseria gonorrhoeae testing using the GeneXpert

06

What researchers measure

Primary outcomes

  1. Number of Women Diagnosed With C. Trachomatis and N. Gonorrhoeae Infection at Post-delivery

    Results from GeneXpert PCR screening for Chlamydia trachomatis (CT) or Neisseria gonorrhoeae (NG) infection among postpartum women up 12 weeks after birth outcome. We compare the proportion with CT and/or NG in both study arms

    Time frame: This outcome was assessed at the first postnatal care visit up to 12 weeks after delivery.

Secondary outcomes

  1. Number of Neonates Diagnosed With Chlamydia Trachomatis or Neisseria Gonorrhoeae Infection at Post-delivery.

    Infants of mothers who tested positive for Chlamydia trachomatis or Neisseria gonorrhoeae infection at the first postnatal care visit will be tested using the GeneXpert PCR. We will compare the number of infected neonates between two arms.

    Time frame: This outcome will be assessed at the first postnatal care visit up to 12 weeks after delivery.

07

Results

Posted Feb 3, 2025

Participant flow

Participant flow — Overall Study
MilestoneTesting and TreatmentStandard of Care
Started251249
Completed220207
Not completed3142

Outcome measures

PrimaryNumber of Women Diagnosed With C. Trachomatis and N. Gonorrhoeae Infection at Post-delivery

Results from GeneXpert PCR screening for Chlamydia trachomatis (CT) or Neisseria gonorrhoeae (NG) infection among postpartum women up 12 weeks after birth outcome. We compare the proportion with CT and/or NG in both study arms

Time frame:
This outcome was assessed at the first postnatal care visit up to 12 weeks after delivery.
Reported as:
Count of participants · Participants
Number of Women Diagnosed With C. Trachomatis and N. Gonorrhoeae Infection at Post-delivery
ParticipantsTesting and TreatmentStandard of Care
Number of Women Diagnosed With C. Trachomatis and N. Gonorrhoeae Infection at Post-delivery223
SecondaryNumber of Neonates Diagnosed With Chlamydia Trachomatis or Neisseria Gonorrhoeae Infection at Post-delivery.

Infants of mothers who tested positive for Chlamydia trachomatis or Neisseria gonorrhoeae infection at the first postnatal care visit will be tested using the GeneXpert PCR. We will compare the number of infected neonates between two arms.

Time frame:
This outcome will be assessed at the first postnatal care visit up to 12 weeks after delivery.
Reported as:
Count of participants · Participants
Number of Neonates Diagnosed With Chlamydia Trachomatis or Neisseria Gonorrhoeae Infection at Post-delivery.
ParticipantsTesting and TreatmentStandard of Care
Number of Neonates Diagnosed With Chlamydia Trachomatis or Neisseria Gonorrhoeae Infection at Post-delivery.73

Adverse events

Collected over Through study completion, an average of 36 weeks.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Testing and Treatment0/251 (0%)16/251 (6.4%)0/251 (0%)
Standard of Care1/249 (0.4%)15/249 (6%)0/249 (0%)
Most frequent serious events
Most frequent serious events
EventTesting and TreatmentStandard of Care
MiscarriagePregnancy, puerperium and perinatal conditions11/2519/249
StillbirthPregnancy, puerperium and perinatal conditions5/2516/249

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Testing and TreatmentStandard of CareTotal
<=18 years121325
Between 18 and 65 years239236475
>=65 years000
Age, Continuous
Age, Continuous(years)Testing and TreatmentStandard of CareTotal
Mean28 (16 to 42)28 (17 to 42)28 (16 to 42)
Sex: Female, Male
Sex: Female, Male(Participants)Testing and TreatmentStandard of CareTotal
Female251249500
Male000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Testing and TreatmentStandard of CareTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American251249500
White000
More than one race000
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(participants)Testing and TreatmentStandard of CareTotal
Botswana251249500
08

Study locations

2 sites
  • University of Southern California
    Los Angeles, California 90032, United States
  • DHMT Clinics
    Gaborone, Botswana
09

References and documents

Publications

  • Wynn A, Mussa A, Ryan R, Hansman E, Simon S, Bame B, Moreri-Ntshabele B, Ramogola-Masire D, Klausner JD, Morroni C. Evaluating the diagnosis and treatment of Chlamydia trachomatis and Neisseria gonorrhoeae in pregnant women to prevent adverse neonatal consequences in Gaborone, Botswana: protocol for the Maduo study. BMC Infect Dis. 2022 Mar 7;22(1):229. doi: 10.1186/s12879-022-07093-z. PubMed 35255814 ↗

Study documents

  • Study protocol · Sep 19, 2022
  • Statistical analysis plan · Sep 19, 2022

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — No IPD will be shared with other researchers

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 3, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04955717
Lead sponsor
University of Southern California
Collaborators
Botswana Harvard AIDS Institute Partnership, University of California, San Diego
Responsible party
Jeffrey D Klausner (Clinical Professor, University of Southern California) — Principal investigator
First posted
Jul 9, 2021
Start date
Feb 24, 2021
Primary completion
Jan 31, 2023
Completion
Jan 31, 2023
Results posted
Feb 3, 2025
Last update
Feb 3, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2025. You cannot join it, but the record below documents what was studied.

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