Preterm LaborPhase 4NCT05997563
Adjunctive Vaginal Progesterone in Management of Preterm Labor
A Phase 4 study testing Micronized progesterone in people with Preterm Labor, run by Chulalongkorn University at 1 site in Thailand.
Trial summary
This study evaluates the addition of vaginal micronized progesterone effervescent to standard treatment in the treatment of preterm labor. Half of participants will receive vaginal micronized progesterone effervescent and standard treatment, while the other half will receive only standard treatment. Read more about this study
- Who is it for?
- Ages 18 to 45 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Preterm Labor
- What is being tested?
- Micronized progesterone
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 48 participants
- Where
- 1 siteThailand
- Study dates
- 16 Aug 2023to 31 Oct 2025
- Phase
- Phase 4
- Are there results?
- None posted in the registry
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 to 45 years
- Women only
- Healthy volunteers accepted
- Adult
Who may be able to join
- singleton pregnancy with gestational age 24-33 weeks 6 days
- preterm labor
- received treatment with tocolysis and corticosteroids
Who cannot join
- conditions that need immediate delivery such as fetal distress, chorioamnionitis
- have medical complications such as heart disease, seizure
- fetal anomalies
- cervical dilatation more than 5 cm
- allergy to progesterone
- contraindication to progesterone
- contraindication to tocolytic use
Trial locations and contacts
1 site in 1 country.
Thailand1 site, 1 recruiting
- Recruiting
Vorapong Phupong
Bangkok, 10330
Vorapong Phupong, MD, +66816339296, vorapong.p@chula.ac.th
Jirapat Chanratchakool, MD, sunnjc.jc@gmail.com
About this study
Official title: Adjunctive Vaginal Progesterone (Micronized Progesterone Effervescent Vaginal Tablet) in Management of Preterm Labor: A Randomized Controlled Trial
This study evaluates the addition of vaginal micronized progesterone effervescent to standard treatment in the treatment of preterm labor. Half of participants will receive vaginal micronized progesterone effervescent and standard treatment, while the other half will receive only standard treatment.
- Conditions
- Preterm Labor
- Being tested
- Micronized progesterone
- Medical subject headings
- Obstetric Labor, Premature
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Micronized progesteroneDrug
Vaginal micronized progesterone effervescent once daily until delivery
| Study group | Role | What they receive |
|---|---|---|
| Micronized progesterone | Active comparator | Not described Receives: Drug: Micronized progesterone |
| Control | No intervention | Not described |
What is being measured
The primary outcome is the main question the study is designed to answer.
latency period
time from preterm labor to delivery
Measured: 13 weeks
Secondary outcomes (9)
gestational age at delivery
mean gestational age at delivery
Measured: 13 weeks
preterm delivery less than 34 weeks
percentage of preterm delivery less than 34 weeks
Measured: 10 weeks
preterm delivery less than 37 weeks
percentage of preterm delivery less than 37 weeks
Measured: 13 weeks
neonatal complications
percentage of newborn with RDS, IVH, NEC, death
Measured: 13 weeks
side effects
percentage of side effects such as headache, nausea/vomiting
Measured: 13 weeks
compliance
percentage of complete drug use
Measured: 13 weeks
good satisfaction
percentage of good satisfaction
Measured: 13 weeks
good quality of life
percentage of good quality of life
Measured: 13 weeks
Time to the recurrence of uterine contractions
mean time to the recurrence of uterine contractions
Measured: 13 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Aug 2023
- Study start16 Aug 2023
- Primary completion31 Aug 2025 (estimated)
- Study completion31 Oct 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (15)Papers the sponsor has linked to this study.
- Other trials for Preterm LaborStudies of the same condition, open and under way.
- More trials run by Chulalongkorn UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- 48 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Chulalongkorn University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Vorapong Phupong, Chulalongkorn University
- Investigators
- Vorapong Phupong, M.D., Study director, Chulalongkorn University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05997563
- Sponsor's protocol ID
- 681/2023
- Status last verified
- Aug 2023
- First submitted
- 8 Aug 2023
- Last updated
- 30 Aug 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Publications
American College of Obstetricians and Gynecologists' Committee on Practice Bulletins-Obstetrics. Practice Bulletin No. 171: Management of Preterm Labor. Obstet Gynecol. 2016 Oct;128(4):e155-64. doi: 10.1097/AOG.0000000000001711.
PubMed 27661654Coomarasamy A, Williams H, Truchanowicz E, Seed PT, Small R, Quenby S, Gupta P, Dawood F, Koot YE, Atik RB, Bloemenkamp KW, Brady R, Briley A, Cavallaro R, Cheong YC, Chu J, Eapen A, Essex H, Ewies A, Hoek A, Kaaijk EM, Koks CA, Li TC, MacLean M, Mol BW, Moore J, Parrott S, Ross JA, Sharpe L, Stewart J, Trepel D, Vaithilingam N, Farquharson RG, Kilby MD, Khalaf Y, Goddijn M, Regan L, Rai R. PROMISE: first-trimester progesterone therapy in women with a history of unexplained recurrent miscarriages - a randomised, double-blind, placebo-controlled, international multicentre trial and economic evaluation. Health Technol Assess. 2016 May;20(41):1-92. doi: 10.3310/hta20410.
PubMed 27225013Facchinetti F, Vergani P, Di Tommaso M, Marozio L, Acaia B, Vicini R, Pignatti L, Locatelli A, Spitaleri M, Benedetto C, Zaina B, D'Amico R. Progestogens for Maintenance Tocolysis in Women With a Short Cervix: A Randomized Controlled Trial. Obstet Gynecol. 2017 Jul;130(1):64-70. doi: 10.1097/AOG.0000000000002065.
PubMed 28594783Coomarasamy A, Devall AJ, Cheed V, Harb H, Middleton LJ, Gallos ID, Williams H, Eapen AK, Roberts T, Ogwulu CC, Goranitis I, Daniels JP, Ahmed A, Bender-Atik R, Bhatia K, Bottomley C, Brewin J, Choudhary M, Crosfill F, Deb S, Duncan WC, Ewer A, Hinshaw K, Holland T, Izzat F, Johns J, Kriedt K, Lumsden MA, Manda P, Norman JE, Nunes N, Overton CE, Quenby S, Rao S, Ross J, Shahid A, Underwood M, Vaithilingam N, Watkins L, Wykes C, Horne A, Jurkovic D. A Randomized Trial of Progesterone in Women with Bleeding in Early Pregnancy. N Engl J Med. 2019 May 9;380(19):1815-1824. doi: 10.1056/NEJMoa1813730.
PubMed 31067371Piette PCM. The pharmacodynamics and safety of progesterone. Best Pract Res Clin Obstet Gynaecol. 2020 Nov;69:13-29. doi: 10.1016/j.bpobgyn.2020.06.002. Epub 2020 Jun 25.
PubMed 32739288ACOG Practice Bulletin No.142: Cerclage for the management of cervical insufficiency. Obstet Gynecol. 2014 Feb;123(2 Pt 1):372-379. doi: 10.1097/01.AOG.0000443276.68274.cc.
PubMed 24451674Cicinelli E, De Ziegler D, Morgese S, Bulletti C, Luisi D, Schonauer LM. "First uterine pass effect" is observed when estradiol is placed in the upper but not lower third of the vagina. Fertil Steril. 2004 May;81(5):1414-6. doi: 10.1016/j.fertnstert.2003.12.016.
PubMed 15136116Simunic V, Tomic V, Tomic J, Nizic D. Comparative study of the efficacy and tolerability of two vaginal progesterone formulations, Crinone 8% gel and Utrogestan capsules, used for luteal support. Fertil Steril. 2007 Jan;87(1):83-7. doi: 10.1016/j.fertnstert.2006.05.067. Epub 2006 Nov 1.
PubMed 17081536Shiba R, Kinutani M, Okano S, Kawano R, Kikkawa Y. Efficacy of four vaginal progesterones for luteal phase support in frozen-thawed embryo transfer cycles: A randomized clinical trial. Reprod Med Biol. 2019 Sep 16;19(1):42-49. doi: 10.1002/rmb2.12300. eCollection 2020 Jan.
PubMed 31956284Schumacher M, Liere P, Ghoumari A. Progesterone and fetal-neonatal neuroprotection. Best Pract Res Clin Obstet Gynaecol. 2020 Nov;69:50-61. doi: 10.1016/j.bpobgyn.2020.09.001. Epub 2020 Sep 8.
PubMed 33039311Norman JE, Marlow N, Messow CM, Shennan A, Bennett PR, Thornton S, Robson SC, McConnachie A, Petrou S, Sebire NJ, Lavender T, Whyte S, Norrie J; OPPTIMUM study group. Vaginal progesterone prophylaxis for preterm birth (the OPPTIMUM study): a multicentre, randomised, double-blind trial. Lancet. 2016 May 21;387(10033):2106-2116. doi: 10.1016/S0140-6736(16)00350-0. Epub 2016 Feb 24.
PubMed 26921136Martinez de Tejada B, Karolinski A. Vaginal progesterone for maintenance tocolysis: a systematic review and metaanalysis of randomized trials. Am J Obstet Gynecol. 2015 Sep;213(3):438-9. doi: 10.1016/j.ajog.2015.05.037. Epub 2015 May 21. No abstract available.
PubMed 26003056Ashoush S, El-Kady O, Al-Hawwary G, Othman A. The value of oral micronized progesterone in the prevention of recurrent spontaneous preterm birth: a randomized controlled trial. Acta Obstet Gynecol Scand. 2017 Dec;96(12):1460-1466. doi: 10.1111/aogs.13236. Epub 2017 Oct 19.
PubMed 28949010Hyett J, Asadi N, Zare Khafri M, Vafaei H, Kasraeian M, Salehi A, Saadati N, Bazrafshan K. The use of vaginal progesterone as a maintenance therapy in women with arrested preterm labor: a double-blind placebo-randomized controlled trial. J Matern Fetal Neonatal Med. 2022 Mar;35(6):1134-1140. doi: 10.1080/14767058.2020.1743662. Epub 2020 Mar 26.
PubMed 32216490Palacio M, Ronzoni S, Sanchez-Ramos L, Murphy KE. Progestogens as Maintenance Treatment in Arrested Preterm Labor: A Systematic Review and Meta-analysis. Obstet Gynecol. 2016 Nov;128(5):989-1000. doi: 10.1097/AOG.0000000000001676.
PubMed 27741193
Study at a glance
From the registry record, last updated by the sponsor on 30 Aug 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Adjunctive Vaginal Progesterone (Micronized Progesterone Effervescent Vaginal Tablet) in Management of Preterm Labor: A Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT05997563
- Acronym / sponsor ID
- 681/2023
- Conditions
- Preterm Labor
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 48 participants (estimated)
- Lead sponsor
- Chulalongkorn UniversityUniversity, hospital or other
- Study start
- 16 Aug 2023 (actual)
- Primary completion
- 31 Aug 2025 (estimated)
- Study completion
- 31 Oct 2025 (estimated)
- First posted
- 18 Aug 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study evaluates the addition of vaginal micronized progesterone effervescent to standard treatment in the treatment of preterm labor. Half of participants will receive vaginal micronized progesterone effervescent and standard treatment, while the other half will receive only standard treatment.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Micronized progesterone | Active comparator | Drug: Micronized progesterone |
| Control | No intervention | – |
Who may qualify
- Ages
- 18 to 45 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- singleton pregnancy with gestational age 24-33 weeks 6 days
- preterm labor
- received treatment with tocolysis and corticosteroids
Key exclusion criteria (7 listed)
- conditions that need immediate delivery such as fetal distress, chorioamnionitis
- have medical complications such as heart disease, seizure
- fetal anomalies
- cervical dilatation more than 5 cm
- allergy to progesterone
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Micronized progesteroneVaginal micronized progesterone effervescent once daily until delivery | Drug | Micronized progesterone |
Primary outcome
latency period
Time frame: 13 weeks
time from preterm labor to delivery
9 secondary outcomes
gestational age at delivery
Time frame: 13 weeks
preterm delivery less than 34 weeks
Time frame: 10 weeks
preterm delivery less than 37 weeks
Time frame: 13 weeks
neonatal complications
Time frame: 13 weeks
side effects
Time frame: 13 weeks
compliance
Time frame: 13 weeks
good satisfaction
Time frame: 13 weeks
good quality of life
Time frame: 13 weeks
Time to the recurrence of uterine contractions
Time frame: 13 weeks
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 30 Aug 2023.
- Background: PubMed 27661654American College of Obstetricians and Gynecologists' Committee on Practice Bulletins-Obstetrics. Practice Bulletin No. 171: Management of Preterm Labor. Obstet Gynecol. 2016 Oct;128(4):e155-64. doi: 10.1097/AOG.0000000000001711.
- Background: PubMed 27225013Coomarasamy A, Williams H, Truchanowicz E, Seed PT, Small R, Quenby S, Gupta P, Dawood F, Koot YE, Atik RB, Bloemenkamp KW, Brady R, Briley A, Cavallaro R, Cheong YC, Chu J, Eapen A, Essex H, Ewies A, Hoek A, Kaaijk EM, Koks CA, Li TC, MacLean M, Mol BW, Moore J, Parrott S, Ross JA, Sharpe L, Stewart J, Trepel D, Vaithilingam N, Farquharson RG, Kilby MD, Khalaf Y, Goddijn M, Regan L, Rai R. PROMISE: first-trimester progesterone therapy in women with a history of unexplained recurrent miscarriages - a randomised, double-blind, placebo-controlled, international multicentre trial and economic evaluation. Health Technol Assess. 2016 May;20(41):1-92. doi: 10.3310/hta20410.
- Background: PubMed 28594783Facchinetti F, Vergani P, Di Tommaso M, Marozio L, Acaia B, Vicini R, Pignatti L, Locatelli A, Spitaleri M, Benedetto C, Zaina B, D'Amico R. Progestogens for Maintenance Tocolysis in Women With a Short Cervix: A Randomized Controlled Trial. Obstet Gynecol. 2017 Jul;130(1):64-70. doi: 10.1097/AOG.0000000000002065.
- Background: PubMed 31067371Coomarasamy A, Devall AJ, Cheed V, Harb H, Middleton LJ, Gallos ID, Williams H, Eapen AK, Roberts T, Ogwulu CC, Goranitis I, Daniels JP, Ahmed A, Bender-Atik R, Bhatia K, Bottomley C, Brewin J, Choudhary M, Crosfill F, Deb S, Duncan WC, Ewer A, Hinshaw K, Holland T, Izzat F, Johns J, Kriedt K, Lumsden MA, Manda P, Norman JE, Nunes N, Overton CE, Quenby S, Rao S, Ross J, Shahid A, Underwood M, Vaithilingam N, Watkins L, Wykes C, Horne A, Jurkovic D. A Randomized Trial of Progesterone in Women with Bleeding in Early Pregnancy. N Engl J Med. 2019 May 9;380(19):1815-1824. doi: 10.1056/NEJMoa1813730.
- Background: PubMed 32739288Piette PCM. The pharmacodynamics and safety of progesterone. Best Pract Res Clin Obstet Gynaecol. 2020 Nov;69:13-29. doi: 10.1016/j.bpobgyn.2020.06.002. Epub 2020 Jun 25.
- Background: PubMed 24451674ACOG Practice Bulletin No.142: Cerclage for the management of cervical insufficiency. Obstet Gynecol. 2014 Feb;123(2 Pt 1):372-379. doi: 10.1097/01.AOG.0000443276.68274.cc.
- Background: PubMed 15136116Cicinelli E, De Ziegler D, Morgese S, Bulletti C, Luisi D, Schonauer LM. "First uterine pass effect" is observed when estradiol is placed in the upper but not lower third of the vagina. Fertil Steril. 2004 May;81(5):1414-6. doi: 10.1016/j.fertnstert.2003.12.016.
- Background: PubMed 17081536Simunic V, Tomic V, Tomic J, Nizic D. Comparative study of the efficacy and tolerability of two vaginal progesterone formulations, Crinone 8% gel and Utrogestan capsules, used for luteal support. Fertil Steril. 2007 Jan;87(1):83-7. doi: 10.1016/j.fertnstert.2006.05.067. Epub 2006 Nov 1.
- Background: PubMed 31956284Shiba R, Kinutani M, Okano S, Kawano R, Kikkawa Y. Efficacy of four vaginal progesterones for luteal phase support in frozen-thawed embryo transfer cycles: A randomized clinical trial. Reprod Med Biol. 2019 Sep 16;19(1):42-49. doi: 10.1002/rmb2.12300. eCollection 2020 Jan.
- Background: PubMed 33039311Schumacher M, Liere P, Ghoumari A. Progesterone and fetal-neonatal neuroprotection. Best Pract Res Clin Obstet Gynaecol. 2020 Nov;69:50-61. doi: 10.1016/j.bpobgyn.2020.09.001. Epub 2020 Sep 8.
- Results publication: PubMed 26921136Norman JE, Marlow N, Messow CM, Shennan A, Bennett PR, Thornton S, Robson SC, McConnachie A, Petrou S, Sebire NJ, Lavender T, Whyte S, Norrie J; OPPTIMUM study group. Vaginal progesterone prophylaxis for preterm birth (the OPPTIMUM study): a multicentre, randomised, double-blind trial. Lancet. 2016 May 21;387(10033):2106-2116. doi: 10.1016/S0140-6736(16)00350-0. Epub 2016 Feb 24.
- Results publication: PubMed 26003056Martinez de Tejada B, Karolinski A. Vaginal progesterone for maintenance tocolysis: a systematic review and metaanalysis of randomized trials. Am J Obstet Gynecol. 2015 Sep;213(3):438-9. doi: 10.1016/j.ajog.2015.05.037. Epub 2015 May 21. No abstract available.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Vorapong Phupong, M.D. study director
Chulalongkorn University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Micronized progesterone in people with Preterm Labor, run by Chulalongkorn University at 1 site in Thailand.
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 3 inclusion and 7 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: status not confirmed, as of the sponsor's last update on 30 Aug 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Thailand. 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?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Vorapong Phupong, M.D. (+66816339296, vorapong.p@chula.ac.th), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
latency period (time frame: 13 weeks). 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 NCT05997563, which also lists 15 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 30 Aug 2023.