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Monitoring Ovarian Cysts in Pregnancy

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT03440931
Recruitment Status : Not yet recruiting
First Posted : February 21, 2018
Last Update Posted : March 1, 2018
Information provided by (Responsible Party):
Guy's and St Thomas' NHS Foundation Trust

Brief Summary:
This prospective study will primarily aim to determine what monitoring is required of ovarian cysts when they are diagnosed in pregnancy, as well as what intervention, if any, is necessary. It also aims to identify the prevalence of ovarian cysts in pregnancy and the nature of these cysts, as well as their natural history throughout pregnancy.

Condition or disease Intervention/treatment
Ovarian Cysts Diagnostic Test: Ultrasound scan

Detailed Description:

The Royal College of Obstetricians and Gynaecologists currently publish guidelines for the management of ovarian cysts in both pre and post-menopausal women. The guidelines for pre-menopausal women do not specifically include pregnant women, and it is known from previous research that the characteristics of ovarian cysts can differ in pregnancy, and therefore appear different on ultrasound scan. Also, where intervention is needed, it is usually surgical which can have high risk implications in pregnancy.

The study will be conducted in the Early Pregnancy and Acute Gynaecology Unit at St. Thomas' Hospital. Any woman who presents with symptoms in early pregnancy (less than 18 weeks) is offered a transvaginal ultrasound scan. If, on this scan, they are found to have an ovarian cyst, they will be considered for the study. Once the ovarian cyst has initially been diagnosed, a confirmatory scan will be carried out by one of the investigators (ie. a clinical fellow, consultant gynaecologist or senior sonographer).

If the cyst is benign in nature and not the cause of acute symptoms, three more transvaginal scans will be carried out by one of the investigators at approximately 12 weeks and 20 weeks (in line with the nuchal translucency scan and anomaly scan), then at 6 weeks post partum. It is intended that all these patients will be managed without surgical intervention.

If there are concerns that the cyst is malignant, the participant would be investigated via the already established pathways. If the participant is at any point in acute pain and the cyst is thought to be the cause of this eg. ovarian torsion or cyst rupture, then a clinical decision would be made regarding surgical intervention.

The total study period will be up to 16 months. This includes a 6 month recruitment period, then following up each participant until 6 weeks post delivery.

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Study Type : Observational
Estimated Enrollment : 200 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Monitoring Ovarian Cysts in Pregnancy
Estimated Study Start Date : February 2018
Estimated Primary Completion Date : May 2019
Estimated Study Completion Date : May 2019

Resource links provided by the National Library of Medicine

Intervention Details:
  • Diagnostic Test: Ultrasound scan
    Transvaginal ultrasound scan to assess ovaries

Primary Outcome Measures :
  1. The proportion of ovarian cysts that are still visible at the final scan (6 weeks post partum) [ Time Frame: 10 months ]

Secondary Outcome Measures :
  1. The nature of the ovarian cysts (i.e functional/dermoid/endometrioma/borderline/malignant) [ Time Frame: 10 months ]
  2. The proportion of patients who required other imaging as well as ultrasound scans (eg. MRI) [ Time Frame: 10 months ]
  3. The prevalence of ovarian cysts in pregnancy [ Time Frame: 16 months ]
  4. The proportion of pregnant women who still have a corpus luteum at 20 weeks [ Time Frame: 5 months ]
  5. The proportion of pregnant woman with ovarian cysts who require surgical intervention [ Time Frame: 10 months ]

Information from the National Library of Medicine

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Ages Eligible for Study:   16 Years to 50 Years   (Child, Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Pregnant women (diagnosed on urinary HCG) who attend the Early Pregnancy Unit at St. Thomas' Hospital and undergo an early pregnancy ultrasound scan. If the scan also shows one or more ovarian cysts, they are eligible for the study, as per the criteria above.

Inclusion Criteria:

- Age 16-50 Pregnant Scanned in the Early Pregnancy Unit at St. Thomas' Hospital (either as a walk in patient / a ward in-patient / referred from A&E or another speciality) At least one ovarian cyst (excluding a corpus luteum)

Exclusion Criteria:

- Age <16 (so as to avoid problems with consent / Gillick competence) Not pregnant (ie. attending the unit with acute gynaecology problem or for follow up after a miscarriage) Lacks capacity to consent Corpus luteal cyst only on ultrasound scan

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03440931

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Contact: Catherine Magee, MBChB 02071880864

Sponsors and Collaborators
Guy's and St Thomas' NHS Foundation Trust
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Principal Investigator: Catherine Magee, MBChB Guys and St. Thomas' NHS Foundatiuon Trust

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Responsible Party: Guy's and St Thomas' NHS Foundation Trust Identifier: NCT03440931     History of Changes
Other Study ID Numbers: 239020
First Posted: February 21, 2018    Key Record Dates
Last Update Posted: March 1, 2018
Last Verified: February 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Undecided

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Ovarian Cysts
Pathological Conditions, Anatomical
Ovarian Diseases
Adnexal Diseases
Genital Diseases, Female
Gonadal Disorders
Endocrine System Diseases