ClinicalTrials.gg
CompletedNCT03297216IPOPUpdated Jul 22, 2021Results posted

Improving Pregnancy Outcomes With Progesterone

A Phase 3 interventional study of 17P and Placebo in Pre-term Birth and HIV-1-infection, sponsored by University of North Carolina, Chapel Hill. Completed at 2 sites in Zambia. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-07-22.

Sponsored by University of North Carolina, Chapel Hill · Phase 3, Interventional, and Prevention

Phase
Phase 3
Study type
Interventional
Enrollment
800
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Study summary

This is a phase III, double-masked, placebo-controlled, randomized controlled trial taking place in Zambia.

Read the detailed description

Weekly intramuscular injections of 250mg 17-alpha hydroxyprogesterone caproate (17P) or indistinguishable placebo will be randomly allocated in a 1:1 ratio started between 16-24 weeks gestation and administered weekly thereafter until 36 6/7 gestational weeks, stillbirth, or delivery, whichever is sooner.

Individual participants will be followed from enrollment (prior to 24 weeks gestation) through 42 days postpartum.

02

Conditions studied

  • Pre-term Birth
  • HIV-1-infection

Browse trials for

Keywords

  • PreTerm Birth
  • HIV-1-infection
  • Antiretroviral Treatment
03

In context

Premature Birth

2,550 studies on the registry are indexed under Premature Birth; 500 are open to participants now.

This study's enrollment of 800 is above the median of 84 across 1,666 interventional studies indexed under Premature Birth.

Browse Premature Birth studies →

Lead sponsor

University of North Carolina, Chapel Hill is the lead sponsor of 1,372 studies on the registry; 133 are open to participants now.

Of its 161 completed or terminated interventional studies of FDA-regulated products, 139 (86%) have results posted.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 18 years of age or older
  • less than 24 0/7 weeks of gestation
  • viable intrauterine singleton pregnancy confirmed by ultrasound
  • antibody-confirmed -1 infection
  • currently receiving antiretroviral l therapy (ART) or intending to commence ART in pregnancy
  • ability and willingness to provide written
  • intent to remain in current geographical area of residence for the duration of study
  • willing to adhere to weekly study visit schedule

Exclusion criteria

Exclusion Criteria:

  • confirmed prior spontaneous preterm birth
  • multiple gestation
  • known uterine anomaly
  • planned or in situ cervical cerclage
  • major fetal anomaly detected on screening ultrasound
  • indication for planned delivery prior to 37 weeks (e.g., prior classical cesarean)
  • threatened abortion, preterm labor, or ruptured membranes at time of enrollment
  • known allergy or medical comorbidity listed as a to 17P in the prescribing information
  • prior participation in the trial
  • any other condition (social or medical) which, in the opinion of the study staff, would make trial participation unsafe or complicate data interpretation.
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
800 participants (actual)

Study arms

  • Active comparator
    250 mg 17P

    weekly intramuscular injection of 250mg 17P

    Drug: 17P

  • Placebo comparator
    Placebo

    weekly intramuscular injection of indistinguishable placebo

    Other: Placebo

Interventions

  • Drug17P

    Synthetic progestin

    Also known as: 17-alpha hydroxyprogesterone caproate

  • OtherPlacebo

    Non-active placebo comparator

06

What researchers measure

Primary outcomes

  1. Number of Participants Experiencing Preterm Births or Stillbirths

    A composite of live births prior to 37 weeks of gestation or stillbirth occurring at any gestational age

    Time frame: At delivery, up to 37 weeks of gestation for live births and up to approximately 40 weeks of gestation for stillbirths

Secondary outcomes

  1. Number of Participants Experiencing Preterm Birth <37 Weeks

    Delivery prior to 37 gestational weeks

    Time frame: At delivery, up to 37 weeks of gestation

  2. Number of Participants Experiencing Preterm Birth <34 Weeks

    Delivery prior to 34 gestational weeks

    Time frame: At delivery, up to 34 weeks of gestation

  3. Number of Participants Experiencing Preterm Birth <28 Weeks

    Delivery prior to 28 gestational weeks

    Time frame: At delivery, up to 28 weeks of gestation

  4. Number of Participants Experiencing Stillbirth

    Participants who had a fetus born without signs of life at any gestational age

    Time frame: At delivery, up to approximately 40 weeks of gestation

  5. Number of Participants Experiencing Spontaneous Delivery <37 Weeks

    Delivery prior to 37 weeks of gestation that was initiated spontaneously, without provider intervention

    Time frame: At delivery, up to 37 weeks of gestation

  6. Number of Participants Experiencing Spontaneous Delivery <34 Weeks

    Delivery prior to 34 weeks of gestation that was initiated spontaneously, without provider intervention

    Time frame: At delivery, up to 34 weeks of gestation

  7. Number of Participants Experiencing Spontaneous Delivery <28 Weeks

    Delivery prior to 28 weeks of gestation that was initiated spontaneously, without provider intervention

    Time frame: At delivery, up to 28 weeks of gestation

  8. Number of Infants With Birth Weight <10th Percentile for Gestational Age

    Infant born with a weight below the 10th percentile for gestational age

    Time frame: Birth

  9. Number of Infants With Birth Weight <3rd Percentile for Gestational Age

    Infant born with a weight below the 3rd percentile for gestational age

    Time frame: Birth

  10. Number of Infants Who Experienced Maternal-to-Child HIV Transmission

    Confirmed HIV infection in an infant

    Time frame: At 6 weeks of life

  11. Number of Neonatal Deaths

    Death of an infant following live birth

    Time frame: Birth through 28 days postpartum

  12. Number of Infants With 1-minute Apgar Score <7

    Apgar score of less than 7 at 1 minute of life. Apgar stands for "Appearance, Pulse, Grimace, Activity, and Respiration" and is a quick test rated on a scale of 1-10 performed on a baby at one minute of life to determine how well the baby tolerated the birth process. Scores 7 and above are generally normal, 4 to 6 fairly low, and 3 and below are generally regarded as critically low.

    Time frame: 1 minute of life

  13. Number of Infants With 5-minute Apgar Score <7

    Apgar score of less than 7 at 5 minutes of life. Apgar stands for "Appearance, Pulse, Grimace, Activity, and Respiration" and is a quick test rated on a scale of 1-10 performed on a baby at five minutes of life to assess how well the baby is doing following delivery. Scores 7 and above are generally normal, 4 to 6 fairly low, and 3 and below are generally regarded as critically low.

    Time frame: 5 minutes of life

07

Results

Posted Jul 9, 2021

Participant flow

Participant flow — Overall Study
Milestone250 mg 17PPlacebo
Started399401
Discontinued intervention54
Infants born during study399401
Completed396396
Not completed35
Withdrew: Death01
Withdrew: Miscarriage02
Withdrew: Lost to follow-up32

Outcome measures

PrimaryNumber of Participants Experiencing Preterm Births or Stillbirths

A composite of live births prior to 37 weeks of gestation or stillbirth occurring at any gestational age

Time frame:
At delivery, up to 37 weeks of gestation for live births and up to approximately 40 weeks of gestation for stillbirths
Reported as:
Count of participants · Participants
Number of Participants Experiencing Preterm Births or Stillbirths
Participants250 mg 17PPlacebo
Number of Participants Experiencing Preterm Births or Stillbirths3636
SecondaryNumber of Participants Experiencing Preterm Birth <37 Weeks

Delivery prior to 37 gestational weeks

Time frame:
At delivery, up to 37 weeks of gestation
Reported as:
Count of participants · Participants
Number of Participants Experiencing Preterm Birth <37 Weeks
Participants250 mg 17PPlacebo
Number of Participants Experiencing Preterm Birth <37 Weeks3135
SecondaryNumber of Participants Experiencing Preterm Birth <34 Weeks

Delivery prior to 34 gestational weeks

Time frame:
At delivery, up to 34 weeks of gestation
Reported as:
Count of participants · Participants
Number of Participants Experiencing Preterm Birth <34 Weeks
Participants250 mg 17PPlacebo
Number of Participants Experiencing Preterm Birth <34 Weeks1416
SecondaryNumber of Participants Experiencing Preterm Birth <28 Weeks

Delivery prior to 28 gestational weeks

Time frame:
At delivery, up to 28 weeks of gestation
Reported as:
Count of participants · Participants
Number of Participants Experiencing Preterm Birth <28 Weeks
Participants250 mg 17PPlacebo
Number of Participants Experiencing Preterm Birth <28 Weeks35
SecondaryNumber of Participants Experiencing Stillbirth

Participants who had a fetus born without signs of life at any gestational age

Time frame:
At delivery, up to approximately 40 weeks of gestation
Reported as:
Count of participants · Participants
Number of Participants Experiencing Stillbirth
Participants250 mg 17PPlacebo
Number of Participants Experiencing Stillbirth1011
SecondaryNumber of Participants Experiencing Spontaneous Delivery <37 Weeks

Delivery prior to 37 weeks of gestation that was initiated spontaneously, without provider intervention

Time frame:
At delivery, up to 37 weeks of gestation
Reported as:
Count of participants · Participants
Number of Participants Experiencing Spontaneous Delivery <37 Weeks
Participants250 mg 17PPlacebo
Number of Participants Experiencing Spontaneous Delivery <37 Weeks2526
SecondaryNumber of Participants Experiencing Spontaneous Delivery <34 Weeks

Delivery prior to 34 weeks of gestation that was initiated spontaneously, without provider intervention

Time frame:
At delivery, up to 34 weeks of gestation
Reported as:
Count of participants · Participants
Number of Participants Experiencing Spontaneous Delivery <34 Weeks
Participants250 mg 17PPlacebo
Number of Participants Experiencing Spontaneous Delivery <34 Weeks1011
SecondaryNumber of Participants Experiencing Spontaneous Delivery <28 Weeks

Delivery prior to 28 weeks of gestation that was initiated spontaneously, without provider intervention

Time frame:
At delivery, up to 28 weeks of gestation
Reported as:
Count of participants · Participants
Number of Participants Experiencing Spontaneous Delivery <28 Weeks
Participants250 mg 17PPlacebo
Number of Participants Experiencing Spontaneous Delivery <28 Weeks34
SecondaryNumber of Infants With Birth Weight <10th Percentile for Gestational Age

Infant born with a weight below the 10th percentile for gestational age

Time frame:
Birth
Reported as:
Count of participants · Participants
Number of Infants With Birth Weight <10th Percentile for Gestational Age
Participants250mg 17PPlacebo
Number of Infants With Birth Weight <10th Percentile for Gestational Age9593
SecondaryNumber of Infants With Birth Weight <3rd Percentile for Gestational Age

Infant born with a weight below the 3rd percentile for gestational age

Time frame:
Birth
Reported as:
Count of participants · Participants
Number of Infants With Birth Weight <3rd Percentile for Gestational Age
Participants250 mg 17PPlacebo
Number of Infants With Birth Weight <3rd Percentile for Gestational Age2847
SecondaryNumber of Infants Who Experienced Maternal-to-Child HIV Transmission

Confirmed HIV infection in an infant

Time frame:
At 6 weeks of life
Reported as:
Count of participants · Participants
Number of Infants Who Experienced Maternal-to-Child HIV Transmission
Participants250 mg 17PPlacebo
Number of Infants Who Experienced Maternal-to-Child HIV Transmission11
SecondaryNumber of Neonatal Deaths

Death of an infant following live birth

Time frame:
Birth through 28 days postpartum
Reported as:
Count of participants · Participants
Number of Neonatal Deaths
Participants250 mg 17PPlacebo
Number of Neonatal Deaths147
SecondaryNumber of Infants With 1-minute Apgar Score <7

Apgar score of less than 7 at 1 minute of life. Apgar stands for "Appearance, Pulse, Grimace, Activity, and Respiration" and is a quick test rated on a scale of 1-10 performed on a baby at one minute of life to determine how well the baby tolerated the birth process. Scores 7 and above are generally normal, 4 to 6 fairly low, and 3 and below are generally regarded as critically low.

Time frame:
1 minute of life
Reported as:
Count of participants · Participants
Number of Infants With 1-minute Apgar Score <7
Participants250 mg 17PPlacebo
Number of Infants With 1-minute Apgar Score <7129
SecondaryNumber of Infants With 5-minute Apgar Score <7

Apgar score of less than 7 at 5 minutes of life. Apgar stands for "Appearance, Pulse, Grimace, Activity, and Respiration" and is a quick test rated on a scale of 1-10 performed on a baby at five minutes of life to assess how well the baby is doing following delivery. Scores 7 and above are generally normal, 4 to 6 fairly low, and 3 and below are generally regarded as critically low.

Time frame:
5 minutes of life
Reported as:
Count of participants · Participants
Number of Infants With 5-minute Apgar Score <7
Participants250 mg 17PPlacebo
Number of Infants With 5-minute Apgar Score <772

Adverse events

Collected over From the time of enrollment through 6 weeks postpartum, a total of up to 32 weeks. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Mothers: 250 mg 17P0/399 (0%)56/399 (14%)43/399 (10.8%)
Mothers: Placebo1/401 (0.2%)55/401 (13.7%)27/401 (6.7%)
Infants Born to Mothers Receiving 250 mg 17P14/399 (3.5%)33/399 (8.3%)0/399 (0%)
Infants Born to Mothers Receiving Placebo7/401 (1.7%)22/401 (5.5%)0/401 (0%)
Most frequent serious events
Showing 10 of 40
Most frequent serious events
EventMothers: 250 mg 17PMothers: PlaceboInfants Born to Mothers Receiving 250 mg 17PInfants Born to Mothers Receiving Placebo
Neonatal Respiratory Distress SyndromeRespiratory, thoracic and mediastinal disorders0/3990/40114/39910/401
Urinary Tract InfectionRenal and urinary disorders8/39911/4010/3990/401
StillbirthPregnancy, puerperium and perinatal conditions10/3999/4010/3990/401
Abdominal PainGeneral disorders6/3997/4010/3990/401
Presumed Neonatal SepsisInfections and infestations0/3990/4016/3992/401
Neonatal EncephelopathyNervous system disorders0/3990/4016/3992/401
HemorrhagePregnancy, puerperium and perinatal conditions5/3994/4010/3990/401
PreeclampsiaPregnancy, puerperium and perinatal conditions5/3994/4010/3990/401
AnemiaBlood and lymphatic system disorders2/3993/4011/3991/401
HypertensionPregnancy, puerperium and perinatal conditions2/3992/4010/3990/401
Most frequent other events
Most frequent other events
EventMothers: 250 mg 17PMothers: PlaceboInfants Born to Mothers Receiving 250 mg 17PInfants Born to Mothers Receiving Placebo
HeadacheProduct Issues25/39917/4010/3990/401
DiarrheaProduct Issues18/39910/4010/3990/401

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Mothers: 250 mg 17PMothers: PlaceboTotal
<=18 years000
Between 18 and 65 years399401800
>=65 years000
Age, Continuous
Age, Continuous(years)Mothers: 250 mg 17PMothers: PlaceboTotal
Median29 (25 to 33)30 (25 to 34)29 (25 to 34)
Sex: Female, Male
Sex: Female, Male(Participants)Mothers: 250 mg 17PMothers: PlaceboTotal
Female399401800
Male000
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Mothers: 250 mg 17PMothers: PlaceboTotal
Hispanic or Latino000
Not Hispanic or Latino399401800
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Mothers: 250 mg 17PMothers: PlaceboTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American399401800
White000
More than one race000
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(Participants)Mothers: 250 mg 17PMothers: PlaceboTotal
Zambia399401800
08

Study locations

2 sites
  • Kamwala District Clinic
    Lusaka, Zambia
  • University Teaching Hospital
    Lusaka, Zambia
09

References and documents

Publications

  • Price JT, Vwalika B, Freeman BL, Cole SR, Saha PT, Mbewe FM, Phiri WM, Peterson M, Muyangwa D, Sindano N, Mwape H, Smithmyer ME, Kasaro MP, Rouse DJ, Goldenberg RL, Chomba E, Stringer JSA. Weekly 17 alpha-hydroxyprogesterone caproate to prevent preterm birth among women living with HIV: a randomised, double-blind, placebo-controlled trial. Lancet HIV. 2021 Oct;8(10):e605-e613. doi: 10.1016/S2352-3018(21)00150-8. Epub 2021 Sep 9. PubMed 34509197 ↗
  • Price JT, Vwalika B, Freeman BL, Cole SR, Mulenga HB, Winston J, Mbewe FM, Chomba E, Mofenson LM, Rouse DJ, Goldenberg RL, Stringer JSA. Intramuscular 17-hydroxyprogesterone caproate to prevent preterm birth among HIV-infected women in Zambia: study protocol of the IPOP randomized trial. BMC Pregnancy Childbirth. 2019 Feb 27;19(1):81. doi: 10.1186/s12884-019-2224-8. PubMed 30813934 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Feb 2018 to primary completion in Jun 2020, 28 months.

Results were first posted in Jul 2021, 1 year after primary completion.

Of 35 non-industry phase 3 interventional studies under Premature Birth, half reached primary completion within 53 months of starting (the median), counting those still running; a quarter within 28 and three quarters within 89. This study's 28 months is below that.

Counting every sponsor, half of 40 studies reached it within 51 months; a quarter within 28 and three quarters within 89.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 15, 2017
First posted
Sep 29, 2017
StartActual
Feb 7, 2018
Primary completionActual
Jun 25, 2020
CompletionActual
Aug 6, 2020
Results first posted
Jul 9, 2021
Last update
Jul 22, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 22, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03297216
Responsible party
Sponsor
First posted
Sep 29, 2017
Start date
Feb 7, 2018
Primary completion
Jun 25, 2020
Completion
Aug 6, 2020
Results posted
Jul 9, 2021
Last update
Jul 22, 2021

Study contacts

Jeff Stringer, MD, FACOG
principal investigator · University of North Carolina, Chapel Hill

Oversight

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

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Studies of the drug tested here: 17 alpha-Hydroxyprogesterone Caproate

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