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AzTrials

Pregnancy PretermPhase 4NCT05345457

Outpatient Antibiotics Following Previable Rupture of Membranes (pPPROM) Between 18 0/7 and 22 6/7 Weeks Gestational Age

A Phase 4 study testing Azithromycin Pill and Amoxicillin Pill in people with Pregnancy Preterm and Pregnancy Prom, run by University Hospitals Cleveland Medical Center at 3 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

A randomized, controlled, non-placebo trial to primarily assess the effect of oral, outpatient antibiotics (i.e., azithromycin and amoxicillin) on latency (i.e., proportion of patients that deliver within 28 days from membrane rupture) following previable, prelabor rupture of membranes between 18 0/7 and 22 6/7 weeks… Read more about this study

Who is it for?
Ages 18 years and older, women onlyHealthy volunteers can take part
What is being tested?
Azithromycin Pill and Amoxicillin Pill
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1 participants
Where
3 sitesUnited States
Study dates
13 Jan 2023to 26 Feb 2024
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • English-speaking
  • Pregnant
  • Live, singleton gestation
  • Patient able to provide informed consent
  • Gestational age between 18 weeks and 0 days and 22 weeks and 6 days at the time of -membrane rupture
  • Diagnosis of preterm, prelabor rupture of membranes by clinical exam findings of either 1) visualization of amniotic fluid passing from the cervical canal and/or pooling in the vagina via sterile speculum examination, 2) a basic pH (i.e., positive nitrazine) test of vaginal fluid, 3) arborization (i.e., ferning) of dried vaginal fluid identified via microscopic examination, and/or 4) an amniotic fluid index (AFI) of less than 4cm

Who cannot join

  • Gestational dating performed or confirmed by ultrasound at ≥ 18 weeks and 0 days gestational age
  • Patient desires pregnancy interruption or induction of labor
  • Known major fetal anomaly or aneuploidy
  • Amniocentesis ≤ 7 days of diagnosis of rupture of membranes
  • Cervical cerclage placement ≤ 7 days of diagnosis of rupture of membranes
  • Known drug allergy or significant adverse reactions to macrolide or penicillin antibiotics
Show all 13Show fewer
  • Current antibiotic use at the time of membrane rupture diagnosis
  • Vaginal bleeding at the time of membrane rupture diagnosis or within first 24 hours from diagnosis
  • Febrile at the time of membrane rupture diagnosis (i.e., temperature ≥ 38 degrees Celsius) and/or within first 24 hours of diagnosis
  • Active preterm labor at the time of membrane rupture diagnosis (i.e., consistent contraction pattern associated with cervical change) and/or within first 24 hours of diagnosis
  • Cervical dilation of ≥ 4 cm
  • Prolapse of fetal parts beyond the level of the internal cervical os
  • Declination to complete full, 7-day outpatient monitoring prior to hospital re-admission should rupture occur during the 22nd week of gestation

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • University Hospitals

    Cleveland, Ohio, 44106

  • MetroHealth

    Cleveland, Ohio, 44109

  • Cleveland Clinic

    Cleveland, Ohio, 44111

Other trials in United States

About this study

A randomized, controlled, non-placebo trial to primarily assess the effect of oral, outpatient antibiotics (i.e., azithromycin and amoxicillin) on latency (i.e., proportion of patients that deliver within 28 days from membrane rupture) following previable, prelabor rupture of membranes between 18 0/7 and 22 6/7 weeks gestational age.

Being tested
Azithromycin Pill, Amoxicillin Pill
Medical subject headings
Fetal Membranes, Premature Rupture, Premature Birth

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Azithromycin PillDrug

    Azithromycin will be dosed as single 500 mg dose (2-250mg oral tablets) administered immediately following randomization, yet prior to discharge to home, followed with 1-250mg oral tablet daily for 4 additional days (for a total of 5 days).

  • Amoxicillin PillDrug

    Amoxicillin will be dosed as a single-500mg oral tablet three times daily for 7 days with first dose also being given prior to discharge home.

Study groups in NCT05345457
Study groupRoleWhat they receive
AntibioticsExperimentalPatients randomized into the treatment (i.e., antibiotics) arm of the study will be treated with a seven-day course of oral azithromycin and amoxicillin. Azithromycin will be dosed as single 500 mg dose (2-250mg oral tablets) administered immediately following randomization, yet prior to discharge to home, followed with 1-250mg oral tablet daily for 4 additional days (for a total of 5 days). Amoxicillin will be dosed as a single-500mg oral tablet three times daily for 7 days with first dose also being given prior to discharge home.
Receives: Drug: Azithromycin Pill; Drug: Amoxicillin Pill
No antibioticsNo interventionPatients randomized into the control (i.e., no antibiotics arm) will be managed according to standard of care practices for previable PPROM desiring of expectant management.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Delivery Within 28 Days

    The proportion of patients that undergo a spontaneous or medically-indicated delivery within 28 days from diagnosis of previable prelabor rupture of membranes (pPPROM)

    Measured: 28 days from date of rupture

Secondary outcomes (2)
  1. Severe Maternal Morbidity Composite

    The proportion of patient's "positive" for severe maternal morbidity composite. A patient will be termed "positive" for severe maternal morbidity composite if any one of the following is diagnosed: maternal sepsis, postpartum hemorrhage, maternal ICU admission, maternal death.

    Measured: From diagnosis of membrane rupture to 6 weeks following delivery

  2. Severe Neonatal Morbidity Composite

    The proportion of patient's "positive" for severe neonatal morbidity composite. A neonate will be termed "positive" for severe neonatal morbidity composite if any one of the following is diagnosis: bronchopulmonary dysplasia (BPD), pulmonary hypoplasia, intraventricular hemorrhage (IVH) grade III/IV, necrotizing enterocolitis (NEC) Bell's Stage II or greater, neonatal sepsis with positive blood cultures, neonatal pneumonia with positive blood cultures, neonatal death.

    Measured: From date of delivery to date of hospital discharge (up to 6 months)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Apr 2022
  2. Study start13 Jan 2023
  3. Primary completion26 Feb 2024
  4. Study completion26 Feb 2024

Why it stopped: Low enrollment

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
1 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05345457
Sponsor's protocol ID
STUDY20220251
Status last verified
May 2026
First submitted
14 Apr 2022
Last updated
18 Jun 2026
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Once data collection and primary analysis has been completed. A de-identified data set will be provided.

Publications

  • Martin JA, Hamilton BE, Ventura SJ, Osterman MJ, Wilson EC, Mathews TJ. Births: final data for 2010. Natl Vital Stat Rep. 2012 Aug 28;61(1):1-72.

    PubMed 24974589
  • Mathews TJ, MacDorman MF. Infant mortality statistics from the 2006 period linked birth/infant death data set. Natl Vital Stat Rep. 2010 Apr 30;58(17):1-31.

    PubMed 20815136
  • Waters TP, Mercer B. Preterm PROM: prediction, prevention, principles. Clin Obstet Gynecol. 2011 Jun;54(2):307-12. doi: 10.1097/GRF.0b013e318217d4d3.

    PubMed 21508700
  • Kilbride HW, Thibeault DW. Neonatal complications of preterm premature rupture of membranes. Pathophysiology and management. Clin Perinatol. 2001 Dec;28(4):761-85. doi: 10.1016/s0095-5108(03)00076-9.

    PubMed 11817188
  • Yeast JD. Preterm premature rupture of the membranes before viability. Clin Perinatol. 2001 Dec;28(4):849-60. doi: 10.1016/s0095-5108(03)00082-4.

    PubMed 11758532
  • Muris C, Girard B, Creveuil C, Durin L, Herlicoviez M, Dreyfus M. Management of premature rupture of membranes before 25 weeks. Eur J Obstet Gynecol Reprod Biol. 2007 Apr;131(2):163-8. doi: 10.1016/j.ejogrb.2006.05.016. Epub 2006 Jul 17.

    PubMed 16846673
  • Mercer BM, Miodovnik M, Thurnau GR, Goldenberg RL, Das AF, Ramsey RD, Rabello YA, Meis PJ, Moawad AH, Iams JD, Van Dorsten JP, Paul RH, Bottoms SF, Merenstein G, Thom EA, Roberts JM, McNellis D. Antibiotic therapy for reduction of infant morbidity after preterm premature rupture of the membranes. A randomized controlled trial. National Institute of Child Health and Human Development Maternal-Fetal Medicine Units Network. JAMA. 1997 Sep 24;278(12):989-95.

    PubMed 9307346
  • American College of Obstetricians and Gynecologists; Society for Maternal-Fetal Medicine. Obstetric Care consensus No. 6: Periviable Birth. Obstet Gynecol. 2017 Oct;130(4):e187-e199. doi: 10.1097/AOG.0000000000002352.

    PubMed 28937572
  • Grisaru-Granovsky S, Eitan R, Kaplan M, Samueloff A. Expectant management of midtrimester premature rupture of membranes: a plea for limits. J Perinatol. 2003 Apr-May;23(3):235-9. doi: 10.1038/sj.jp.7210880.

    PubMed 12732862
  • Schucker JL, Mercer BM. Midtrimester premature rupture of the membranes. Semin Perinatol. 1996 Oct;20(5):389-400. doi: 10.1016/s0146-0005(96)80006-1.

    PubMed 8912993
  • Waters TP, Mercer BM. The management of preterm premature rupture of the membranes near the limit of fetal viability. Am J Obstet Gynecol. 2009 Sep;201(3):230-40. doi: 10.1016/j.ajog.2009.06.049.

    PubMed 19733274
  • Pristauz G, Bauer M, Maurer-Fellbaum U, Rotky-Fast C, Bader AA, Haas J, Lang U. Neonatal outcome and two-year follow-up after expectant management of second trimester rupture of membranes. Int J Gynaecol Obstet. 2008 Jun;101(3):264-8. doi: 10.1016/j.ijgo.2007.12.007. Epub 2008 Mar 4.

    PubMed 18289539
  • Dotters-Katz SK, Myrick O, Smid M, Manuck TA, Boggess KA, Goodnight W. Use of prophylactic antibiotics in women with previable prelabor rupture of membranes. J Neonatal Perinatal Med. 2017;10(4):431-437. doi: 10.3233/NPM-16165.

    PubMed 29286934
  • Manuck TA, Eller AG, Esplin MS, Stoddard GJ, Varner MW, Silver RM. Outcomes of expectantly managed preterm premature rupture of membranes occurring before 24 weeks of gestation. Obstet Gynecol. 2009 Jul;114(1):29-37. doi: 10.1097/AOG.0b013e3181ab6fd3.

    PubMed 19546755
  • Esteves JS, de Sa RA, de Carvalho PR, Coca Velarde LG. Neonatal outcome in women with preterm premature rupture of membranes (PPROM) between 18 and 26 weeks. J Matern Fetal Neonatal Med. 2016;29(7):1108-12. doi: 10.3109/14767058.2015.1035643. Epub 2015 Jul 3.

    PubMed 26138545

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Azithromycin Pill and Amoxicillin Pill in people with Pregnancy Preterm and Pregnancy Prom, run by University Hospitals Cleveland Medical Center at 3 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 18 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 18 Jun 2026). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Delivery Within 28 Days (time frame: 28 days from date of rupture). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05345457, which also lists 57 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Jun 2026.

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