AzTrials
AzTrials

GastroschisisMEGANCT07030309

MEGA STUDY - Multicenter Evaluation of Gastroschisis Anomaly Study

An observational study of Gastroschisis, run by ResearchSkills at 9 sites in Poland.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
Search all trials

Trial summary

The purpose of this observational study is to evaluate selected epidemiological aspects of gastroschisis (GS) and factors affecting health outcomes of newborns with this diagnosis in a population of fetuses with gastroschisis. Read more about this study

Who is it for?
Any age
Conditions the study is for
Gastroschisis
What is being tested?
Gastroschisis
How many people
200 participants
Where
9 sitesPoland
Study dates
21 Jun 2025to 30 Jun 2026
Phase
Observational
Are there results?
Not yet: the study is under way

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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: The study population for the MEGA Study consists of fetuses diagnosed with gastroschisis. The specific criteria for inclusion in the study are: * Fetuses with a diagnosis of gastroschisis. * Availability of prenatal, delivery, and postnatal documentation (up to hospital discharge, transfer to another center, or death). The exclusion criterion for the study is: • Pregnancies terminated before 22 weeks of gestation. The time frame for data included in the study is 2011 - 2024, although a shorter observation period may be applied depending on the availability of data at a participating center.

Who may be able to join

  • A fetus with a diagnosis of gastroschisis;
  • Availability of prenatal, delivery and postnatal records (for hospital discharge, transfer to another facility or death).

Who cannot join

  • pregnancies terminated before the 22nd week of pregnancy

Trial locations and contacts

9 sites in 1 country.

9 sites in 1 country

Poland9 sites
  • Górnośląskie Centrum Zdrowia Dziecka, Szpital Uniwersytecki ŚUM, Klinika Chirurgii Dziecięcej i Urologii Dziecięcej

    Katowice, 40-752

  • Szpital Kliniczny Uniwersytetu Medycznego w Poznaniu, Oddział Ginekologiczno-Położniczy, Pododdział Rozrodczości i Medycyny Perinatalnej

    Poznan

  • Szpital Kliniczny Uniwersytetu Medyczny w Poznaniu, Klinika Chirurgii Traumatologii i Urologii Dziecięcej

    Poznan

  • Szpital Miejski w Rudzie Śląskiej, Katedra i Oddział Kliniczny Ginekologii i Położnictwa, Wydziału Nauk o Zdrowiu

    Ruda Śląska

  • Kliniczny Szpital Wojewódzki nr 2 im. Świętej Jadwigi Królowej. Klinika Położnictwa Ginekologii i Perinatologii

    Rzeszów, 35-301

  • Szpital Wojewódzki Nr 2 im. Św. Jadwigi Królowej w Rzeszowie, Klinika Chirurgii Dziecięcej

    Rzeszów

  • Uniwersyteckie Centrum Kliniczne WUM, Dziecięcy Szpital Kliniczny. Klinika Chirurgii i Urologii Dziecięcej i Pediatrii

    Warsaw, 02-091

  • Instytut Matki i Dziecka

    Warsaw

  • Uniwersyteckie Centrum Kliniczne Warszawskiego Uniwersytetu Medycznego. Klinika Położnictwa, Perinatologii, Ginekologii i Rozrodczości

    Warsaw

Other trials in Poland

About this study

The purpose of this observational study is to evaluate selected epidemiological aspects of gastroschisis (GS) and factors affecting health outcomes of newborns with this diagnosis in a population of fetuses with gastroschisis. The main questions the study aims to answer are:

  • Are there correlations between the parameters of ultrasound evaluation of the bowel with the condition of the newborn's bowel as assessed by the surgeon?
  • What is the prevalence of the different forms of GS (classification according to the methodology of Molik et al. 2002, Perrone et al. 2018)?
  • What is the incidence of perioperative and postoperative complications and other complications of the neonatal period?
  • What is the relationship between the form of the defect (simple GS vs complex GS) and feeding milestones - TFEF, TPN, TSEF, TSOF, TFOF?
  • What is the relationship between clinical parameters, diagnostic and therapeutic management, including method and timing of delivery, and final outcomes? Participants will not perform any active tasks or receive interventions as part of this study. Data will be collected passively from historical medical records including prenatal test results, details of pregnancy, delivery, and postnatal information on the newborn's treatment. The information collected will be anonymized. The study aims to collect information on prenatal diagnosis and neonatal outcomes, analyze factors affecting final results, and develop the most optimal management regimen for GS in Poland.
Conditions
Gastroschisis
Being tested
Gastroschisis
Keywords
gastroschisis, ORPHA:2368, congenital anomaly, MEGA Study, Observational study, Epidemiology, Prenatal diagnosis, Multicenter study, prenatal ultrasound
Medical subject headings
Gastroschisis, Congenital Abnormalities

What participants receive

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

  • GastroschisisOther

    Gastroschisis (GS) is a congenital abdominal wall defect in which the intestine is located outside the abdominal cavity. The prevalence of the GS classifies it as a rare disease (ORPHA:2368) Pregnancy complicated by gastroschisis is associated with an increased risk of serious perinatal complications.

    The presence of accompanying intestinal anomalies (atresia, necrosis, perforation, and volvulus), which qualifies the defect in the cGS (complex gastroschisis) group, as opposed to sGS (simple gastroschisis), where these anomalies are absent.

    cGS is associated with significantly increased neonatal morbidity and mortality when compared to sGS.

Study groups in NCT07030309
Study groupRoleWhat they receive
simple gastroschisisisolated gastroschisis, without intestinal anomalies
Receives: Other: Gastroschisis
complex gastroschisisgastroschisis with intestinal atresias, perforations, necrosis or volvulus
Receives: Other: Gastroschisis

What is being measured

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

  1. The prevalence of different forms of GS

    The prevalence of different forms of GS: simple, complex

    Measured: During primary surgery

Secondary outcomes (22)
  1. Agreement rate between prenatal and neonatal assessment of the bowel condition

    Comparison of the prenatal ultrasound bowel condition and the newborn's bowel assessment by the surgeon

    Measured: Prenatal assessment - during every US examination up to the time of delivery; newborn's evaluation - during primary surgery

  2. Prevalence of necrotizing enterocolitis (NEC)

    Diagnosis of necrotizing enterocolitis (NEC) is based on sudden onset of feeding intolerance, abdominal distention, bloody stools, and signs of sepsis (i.e., changes in the heart rate, respiratory rate, temperature, and blood pressure) in preterm infants, according to the Bell scale, which integrates the clinical and radiological manifestations.

    Measured: Up to 28 days after birth

  3. Prevalence of short bowel syndrome (SBS)

    Diagnosis of short bowel syndrome (SBS) is in case of loss of bowel length or function significantly enough to cause malabsorption, requiring lifelong parenteral support

    Measured: During primary surgery or reoperation

  4. Prevalence of newborn sepsis

    Newborn sepsis - an infection involving the bloodstream in infants under 28 days old. The clinical syndrome with symptomatology and laboratory findings consistent with a systemic inflammatory response to a multimodal infection caused by bacteria viruses, fungi potentially leading to multiple organ dysfunction, failure and even death within the first 28 days of life.

    Measured: Up to 28 days after birth

  5. Time to full enteral feeding (TFEF)

    Time to full enteral feeding (TFEF) - the time when neonates start to receive all of their prescribed nutrition as milk feeds

    Measured: From date of birth until the first day when full enteral feeding is achieved, assessed up to 28 days after birth.

  6. Duration of the total parenteral nutrition (TPN)

    Total Parenteral Nutrition (TPN) - duration of parenteral nutrition, the time of intravenous feeding of nutritional products

    Measured: From the first day of TPN initiation until the last day of TPN administration, assessed up to 28 days after birth.

  7. Time to start enteral feeding (TSEF)

    Time to start enteral feeding (TSEF) - the time when neonates start enteral nutrition

    Measured: From date of birth until the first day enteral feeding is initiated, assessed up to 14 days after birth.

  8. Time to start oral feeding (TSOF)

    Time to start oral feeding (TSOF)- the time when neonates start oral feeding

    Measured: From date of birth until the first day of oral feeding initiation, assessed up to 28 days after birth.

  9. Time to full oral feeding (TFOF)

    Time to full oral feeding (TFOF) - the time to achieve oral exclusive feeding, without using additional or alternative feeding methods (such as gavage or nasogastric tube)

    Measured: From date of birth until the first day full oral feeding is achieved, assessed up to 28 days after birth.

  10. Lenght of hospital stay (LOS)

    Lenght of hospital stay (LOS) - duration of hospitalization - a clinical metric that measures the time elapsed between a patient's hospital admittance and discharge. For newborns - the time between the day of birth and its discharge

    Measured: Time from the newborn's birth to discharge from the hospital, up to 28 days after birth

  11. Prevalence of modes of delivery

    Mode of delivery - method of pregnancy termination: vaginal delivery or cesarean delivery

    Measured: At delivery

  12. Duration of pregnancy

    Duration of pregnancy [days]

    Measured: At delivery

  13. Time to repair (primary surgery)

    Time to repair (primary surgery); even primary closure or SILO [hours]

    Measured: From date and time of birth until the start of the primary surgical repair, up to 28 days after birth

  14. Time to closure abdominal wall defect

    Time to abdominal wall defect closure, even primary or secondary [hour]

    Measured: From date and time of birth until the completion of definitive abdominal wall defect closure, up to 28 days after birth

  15. Prevalence of neonatal death

    Neonatal death within the first 28 days of life

    Measured: Up to 28 days after birth

  16. Prevalence of intrauterine death

    Intrauterine death after 22 gestational weeks

    Measured: After 22 gestational weeks

  17. Prevalence of gastroschis types by Perrone et al. 2018

    Type A: ischemic bowel, significantly constricted at the ring without atresia Type B: ischemic bowel, significantly constricted at the ring (but viable) with an associated atresia Type C: ischemic bowel with a closing ring with nonviable external bowel (necrosis) with or without an associated atresia Type D: a completely closed defect with either a nubbin of exposed tissue or no external bowel

    Measured: During primary surgery, up to 28 days after birth

  18. GPS (gastroschisis prognostic score) score by Cowan et al. 2012

    GPS (gastroschisis prognostic score) based on bowel appearance in newborns (within 6 hours of birth)

    1. Bowel matting:

    0 -none (normal bowel without inflammation)

    1. mild (slight inflammation or with a visible plaque on the surface (mild bowel matting), always needs to expand (required widening) the abdominal wall defect during primary closure)
    2. severe (moderate to massive inflammation with fibrous plaque (severe bowel matting) on the surface, stiffness of the intestinal wall EABL)

    II. Bowel atresia 0 - absent

    1. - suspected
    2. - present

    III. Bowel necrosis 0 - none

    1. focal
    2. - diffuse

    IV. Bowel perforation 0 - none 2 - present

    Measured: During primary surgery, up to 28 days after birth

  19. Prevalence of Adverse Ultrasound Signs (AUS)

    US 0-no adverse ultrasound signs: normal, stable, and adequate for the gestational age look of EABL (extra-abdominal bowel loops): normal bowel wall (non-hyperechoic, without oedema or/and thickening), free-floating loops without dilatation; no IABL (intra abdominal bowel loops) dilatation; no gastric dilatation.

    US 1-any ultrasound-adverse signs or progression: hyperechoic bowel wall or/and oedema or/and thickening; EABL dilatation; lack of lumen of EABL (collapsed bowel), non-free-floating loops with/or without bowel dilatation; IABL dilatation; gastric dilatation.

    Measured: During every prenatal ultrasound examination, up to the time of delivery

  20. Prevalence of Fetal Growth Restriction (FGR)

    Fetal Growth Restriction (FGR) - "For early FGR (< 32 weeks), three solitary parameters (abdominal circumference (AC) < 3(rd) centile, estimated fetal weight (EFW) < 3(rd) centile and absent end-diastolic flow in the umbilical artery (UA)) and four contributory parameters (AC or EFW < 10(th) centile combined with a pulsatility index (PI) > 95(th) centile in either the UA or uterine artery) were agreed upon. For late FGR (≥ 32 weeks), two solitary parameters (AC or EFW < 3(rd) centile) and four contributory parameters (EFW or AC < 10(th) centile, AC or EFW crossing centiles by > two quartiles on growth charts and cerebroplacental ratio < 5(th) centile or UA-PI > 95(th) centile) were defined." Gordijn SJ, Beune IM, Thilaganathan B, Papageorghiou A, Baschat AA, Baker PN, Silver RM, Wynia K, Ganzevoort W. Consensus definition of fetal growth restriction: a Delphi procedure. Ultrasound Obstet Gynecol. 2016 Sep;48(3):333-9. doi: 10.1002/uog.15884.

    Measured: Assessed throughout pregnancy, up to the time of delivery

  21. Prevalence of Composite Intestinal Complications (CIC)

    Composite Intestinal Complications (CIC) - intestinal complication (atresia, necrosis, perforation, volvulus) resulting from the definition of complex gastroschisis and peri-/post-operative complications in both forms (sGS and cGS) of defect (post-closure reoperation, adhesion-related bowel obstruction, bowel resection, Ileostomy/colostomy, the requirement to improve bowel anastomosis

    Measured: Up to 28 days after birth

  22. Prevalence of bowel matting

    Bowel matting: slight inflammation or with a visible plaque on the surface (mild bowel matting), always needs to expand (required widening) the abdominal wall defect during primary closure or moderate to massive inflammation with fibrous plaque (severe bowel matting) on the surface, stiffness of the intestinal wall EABL

    Measured: During primary surgery, up to 28 days after birth

Timeline

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

  1. First posted22 Jun 2025
  2. Study start21 Jun 2025
  3. Primary completion31 Dec 2025 (estimated)
  4. Study completion30 Jun 2026 (estimated)

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
200 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07030309
Sponsor's protocol ID
1/2025/MEGAStudy
Acronym
MEGA
Status last verified
Jun 2025
First submitted
3 May 2025
Last updated
1 Jul 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Individual participant data (IPD) will be analyzed for the purposes of the study but will not be shared. Only aggregate results will be published. Reason for not sharing IPD: The study protocol does not include plans for IPD sharing. Due to ethical considerations and data protection policies, only anonymized, group-level data will be included in publications and reports.

Publications

  • Dekonenko C, Fraser JD, Deans KJ, Fallat ME, Helmrath M, Kabre R, Leys CM, Burns RC, Corkumd K, Dillon PA, Downard C, Wright TN, Gadepalli SK, Grabowski JE, Hernandez E, Hirschl R, Johnson KN, Kohler JE, Landman MP, Landisch RM, Lawrence AE, Mak GZ, Minneci PC, Rymeski B, Sato TT, Slater BJ, St Peter SD. Outcomes in gastroschisis: expectations in the postnatal period for simple vs complex gastroschisis. J Perinatol. 2021 Jul;41(7):1755-1759. doi: 10.1038/s41372-021-01093-8. Epub 2021 May 25.

    PubMed 34035447
  • Emil S, Canvasser N, Chen T, Friedrich E, Su W. Contemporary 2-year outcomes of complex gastroschisis. J Pediatr Surg. 2012 Aug;47(8):1521-8. doi: 10.1016/j.jpedsurg.2011.12.023.

    PubMed 22901911
  • Molik KA, Gingalewski CA, West KW, Rescorla FJ, Scherer LR, Engum SA, Grosfeld JL. Gastroschisis: a plea for risk categorization. J Pediatr Surg. 2001 Jan;36(1):51-5. doi: 10.1053/jpsu.2001.20004.

    PubMed 11150437
  • Burjonrappa S, Snyder AN. Regional variation in gastroschisis: a nationwide database review of demographics and outcomes. Pediatr Surg Int. 2021 Jul;37(7):911-917. doi: 10.1007/s00383-021-04894-2. Epub 2021 Mar 31.

    PubMed 33787981
  • Lap CCMM, Pistorius LR, Mulder EJH, Aliasi M, Kramer WLM, Bilardo CM, Cohen-Overbeek TE, Pajkrt E, Tibboel D, Wijnen RMH, Visser GHA, Manten GTR; FLAMINGO Study Working Group. Ultrasound markers for prediction of complex gastroschisis and adverse outcome: longitudinal prospective nationwide cohort study. Ultrasound Obstet Gynecol. 2020 Jun;55(6):776-785. doi: 10.1002/uog.21888.

    PubMed 31613023
  • Ferreira RG, Mendonca CR, Goncalves Ramos LL, de Abreu Tacon FS, Naves do Amaral W, Ruano R. Gastroschisis: a systematic review of diagnosis, prognosis and treatment. J Matern Fetal Neonatal Med. 2022 Dec;35(25):6199-6212. doi: 10.1080/14767058.2021.1909563. Epub 2021 Apr 25.

    PubMed 33899664
  • Arnold MA, Chang DC, Nabaweesi R, Colombani PM, Bathurst MA, Mon KS, Hosmane S, Abdullah F. Risk stratification of 4344 patients with gastroschisis into simple and complex categories. J Pediatr Surg. 2007 Sep;42(9):1520-5. doi: 10.1016/j.jpedsurg.2007.04.032.

    PubMed 17848242
  • South AP, Stutey KM, Meinzen-Derr J. Metaanalysis of the prevalence of intrauterine fetal death in gastroschisis. Am J Obstet Gynecol. 2013 Aug;209(2):114.e1-13. doi: 10.1016/j.ajog.2013.04.032. Epub 2013 Apr 26.

    PubMed 23628262
  • Bergholz R, Boettcher M, Reinshagen K, Wenke K. Complex gastroschisis is a different entity to simple gastroschisis affecting morbidity and mortality-a systematic review and meta-analysis. J Pediatr Surg. 2014 Oct;49(10):1527-32. doi: 10.1016/j.jpedsurg.2014.08.001. Epub 2014 Sep 4.

    PubMed 25280661
  • D'Antonio F, Virgone C, Rizzo G, Khalil A, Baud D, Cohen-Overbeek TE, Kuleva M, Salomon LJ, Flacco ME, Manzoli L, Giuliani S. Prenatal Risk Factors and Outcomes in Gastroschisis: A Meta-Analysis. Pediatrics. 2015 Jul;136(1):e159-69. doi: 10.1542/peds.2015-0017.

    PubMed 26122809
  • Wilson RD, Johnson MP. Congenital abdominal wall defects: an update. Fetal Diagn Ther. 2004 Sep-Oct;19(5):385-98. doi: 10.1159/000078990.

    PubMed 15305094
  • Benjamin B, Wilson GN. Anomalies associated with gastroschisis and omphalocele: analysis of 2825 cases from the Texas Birth Defects Registry. J Pediatr Surg. 2014 Apr;49(4):514-9. doi: 10.1016/j.jpedsurg.2013.11.052. Epub 2013 Nov 18.

    PubMed 24726103
  • Syngelaki A, Hammami A, Bower S, Zidere V, Akolekar R, Nicolaides KH. Diagnosis of fetal non-chromosomal abnormalities on routine ultrasound examination at 11-13 weeks' gestation. Ultrasound Obstet Gynecol. 2019 Oct;54(4):468-476. doi: 10.1002/uog.20844.

    PubMed 31408229
  • Garne E, Loane M, Dolk H, De Vigan C, Scarano G, Tucker D, Stoll C, Gener B, Pierini A, Nelen V, Rosch C, Gillerot Y, Feijoo M, Tincheva R, Queisser-Luft A, Addor MC, Mosquera C, Gatt M, Barisic I. Prenatal diagnosis of severe structural congenital malformations in Europe. Ultrasound Obstet Gynecol. 2005 Jan;25(1):6-11. doi: 10.1002/uog.1784.

    PubMed 15619321
  • Jones AM, Isenburg J, Salemi JL, Arnold KE, Mai CT, Aggarwal D, Arias W, Carrino GE, Ferrell E, Folorunso O, Ibe B, Kirby RS, Krapfl HR, Marengo LK, Mosley BS, Nance AE, Romitti PA, Spadafino J, Stock J, Honein MA. Increasing Prevalence of Gastroschisis--14 States, 1995-2012. MMWR Morb Mortal Wkly Rep. 2016 Jan 22;65(2):23-6. doi: 10.15585/mmwr.mm6502a2.

    PubMed 26796490

Questions about this trial

What is this clinical trial studying?

An observational study of Gastroschisis, run by ResearchSkills at 9 sites in Poland.

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 2 inclusion and 1 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: under way, not looking for participants, as of the sponsor's last update on 1 Jul 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 9 sites in Poland. 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.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

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?

The prevalence of different forms of GS (time frame: During primary surgery). 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 NCT07030309, which also lists 26 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 1 Jul 2025.

Free account

Keep searching with a free account

You’ve used your 3 free searches for this session. Log in or create a free AzTrials account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in