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CompletedNCT03357783DeciduoseUpdated Jun 9, 2026

Macroscopic Deciduosis in Pregnancy is Finally a Common Entity

An observational study in Deciduitis; Complicating Pregnancy, sponsored by Hôpital NOVO. Completed at 1 site in France. Open to female participants aged 18 Years to 50 Years. Per ClinicalTrials.gov, last updated 2026-06-09.

Sponsored by Hôpital NOVO · Observational

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Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
31
Ages
18 Years to 50 Years
Sex
Female
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 20 studies in Pregnancy Complications with a site in France — 2 open to participants now, 4 under way, none of them phase 3. Pregnancy Complications · France.

Enrollment
12th of 12
31 · median 133
Started
2011
the only one that year
Observational
12 of 20
2 open now
Registered
8th of 20
by date

Among the 20 studies in Pregnancy Complications with a site in France, this one is the 12th largest by enrollment of the 12 observational ones that give a count, is the only one that started in 2011, is one of 12 observational ones, and was the 8th registered.

Pregnancy Complications

411 studies on the registry are indexed under Pregnancy Complications; 113 are open to participants now.

Browse Pregnancy Complications studies →

Open to participants now

2 of the 20 studies in Pregnancy Complications with a site in France are open now. Recruiting first, the newest first:

All 2 open studies →

A study can be open while its sites in France have not opened yet or have stopped. Only those recruiting at a site in France →

Who these studies take

Of the 92 Pregnancy Complications studies recruiting now, 44 (48%) set no upper age limit and 45 (49%) stop at 75 or younger; 22 take children under 18; 35 take healthy volunteers.

This study: 18 Years to 50 Years · female · no healthy volunteers.

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02

Study summary

The purpose of this study is to determine the prevalence of macroscopic deciduosis found randomly in Cesarean sections and the secondary objective to determine the association with any obstetrical complications or adverse effects.

Read the detailed description

Ectopic decidua or deciduosis is defined as the extrauterine location of decidual tissue and can occur in the cervix, vagina and various abdominal organs like the ovary omentum, appendix, peritoneum, the pelvic lymph nodes. Other rare sites with deciduosis include the kidneys , the lungs and even the skin . Decidualization is a physiologic process during pregnancy, under the influence of ovarian and placental steroid secretion, with total involution in the four to six week post partum period.

03

Conditions studied

  • Deciduitis; Complicating Pregnancy

Keywords

  • Frequency
  • Macroscopic
  • Deciduosis
  • Ovarian
  • Neoplasm
  • Pregnancy
04

Who can participate

Ages eligible
18 Years to 50 Years
Sexes eligible
Female
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

All cesaren section

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

  • All cesarean section

Exclusion criteria

Exclusion Criteria:

  • Patients refusing to participate
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
31 participants (actual)
Patient registry
No

Interventions

  • OtherMacroscopic deciduosis

    Deciduosis is a benign lesion during pregnancy that is not correlated with obstetrical complications. Our study has shown that this physiological phenomenon is more frequent that originally thought, being present in 10% of the Cesarean sections, and is associated with abdominal pain during pregnancy.

06

What researchers measure

Primary outcomes

  1. All cases of cesarean section.

    The purpose of this study is to measure the number of participants who developed macroscopic decidosis in caesareans.

    Time frame: During cesarean section.

07

Study locations

1 site
  • Hôpital NOVO
    Cergy-Pontoise, 95300, France
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

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 Aug 2011 to primary completion in Feb 2014, 30 months.

Of 113 non-industry observational studies under Pregnancy Complications, half reached primary completion within 60 months of starting (the median), counting those still running; a quarter within 30 and three quarters within 201. This study's 30 months is below that.

Counting every sponsor, half of 121 studies reached it within 60 months; a quarter within 30 and three quarters within 151.

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

Registered
Nov 20, 2017
First posted
Nov 30, 2017
StartActual
Aug 1, 2011
Primary completionActual
Feb 1, 2014
CompletionActual
Feb 1, 2014
Last update
Jun 9, 2026
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 Jun 9, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03357783
Lead sponsor
Hôpital NOVO
Responsible party
Sponsor
First posted
Nov 30, 2017
Start date
Aug 1, 2011
Primary completion
Feb 1, 2014
Completion
Feb 1, 2014
Last update
Jun 9, 2026

Study contacts

Georges MARKOU
principal investigator · Hôpital NOVO

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 Jun 2026. You cannot join it, but the record below documents what was studied.

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