Cervical Morphological Changes on Pregnancy Outcome

NCT ID: NCT03242746

Last Updated: 2018-06-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

300 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-09-15

Study Completion Date

2021-09-01

Brief Summary

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This study aims to assess how the proportion of the cervical volume/length removed during treatment for cervical intraepithelial neoplasia (CIN) varies and whether this correlates to the pregnancy duration at delivery

Detailed Description

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The high peak age of the Cervical intraepithelial neoplasia (CIN)patients was from 25 to 35 years old, which is the best women of childbearing age, Standard treatment for CIN is called Loop electrosurgical excision procedure (LEEP),but the inappropriate conization may damage the cervical function leading to infertility, abortion, preterm delivery and dystocia. Therefore, reasonable and standard conization is very important for treating and preventing the complication. The International Federation of Cervical Pathology and Colposcopy(IFCPC) advocates the length of cervical conization should be decided by the type of cervical transformation zone, however, the cervical lengths in female are different leading to the same cervical conization lengths cause the diverse influences on the cervical function.Therefore, individualized cervical conization therapies are very needed,At present, there are still lack of objective data about cervical morphology of women at childbearing age,besides the effects of cervical morphological changes caused by LEEP on pregnancy and childbirth has not been reported.

Our hypothesis is that the proportion of the cervical tissue removed is likely to influence both cervical healing and the cervical volume following surgery and as a result the risk of prematurity in subsequent pregnancies. The present prospective study investigates the variation in the proportion of the cervix removed during excisional treatment and provides pilot data on pregnancy outcomes in a sample population for which the dimensions and proportions of the cervical tissue excised are assessed at the time of treatment.

Conditions

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Pregnancy Outcome

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Control group

1. The study will include 150 women of reproductive age (21-45 years) who wished to have future pregnancies and had cervical biopsy or Pap test, without any other cervical procedure, in the same calendar year.
2. a 3-years follow-up for pregnancy outcome
3. Transvaginal ultrasound for pretreatment cervical dimensions/volume

No interventions assigned to this group

LEEP group

1. The study will include 150 women of reproductive age (21-45 years) planning for excisional treatment for CIN who wished to have future pregnancies. Women are included irrespective of their parity, previous obstetric history, and CIN grade.
2. a 3-years follow-up for pregnancy outcome
3. Transvaginal ultrasound for pretreatment cervical dimensions/volume
4. Transvaginal ultrasound for posttreatment cervical dimensions/volume in the follow-up visit
5. Estimation of cone dimensions/volume
6. Calculation of the proportion of volume/length excised

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

Having fertility requirements,antecedent biopsy read as

1. cervical intraepithelial neoplasia (CIN) grade 2 or 3 or microinvasive cancer
2. adenocarcinoma in situ
3. persistent CIN 1
4. antecedent pap read as
5. high grade squamous intraepithelial lesion
6. atypical glandular cells
7. persistent low grade squamous intraepithelial lesion

Exclusion Criteria

1. anatomy unsuitable for safe office loop excision based on operator judgement
2. inability to tolerate procedure under local anesthesia
3. pregnancy
4. age less than 21 years
5. refusal of consent
6. prisoner
7. mental incapacity
8. anticoagulant or antiplatelet therapy, or known bleeding diathesis
9. use of analgesics other than over the counter medications(OTC meds include NSAIDS or Tylenol) within 7 days of scheduled LEEP.
Minimum Eligible Age

21 Years

Maximum Eligible Age

45 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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The Second Affiliated Hospital of Chongqing Medical University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Lina Hu

Role: STUDY_CHAIR

The Second Affiliated Hospital of Chongqing Medical University

Shufang Chang

Role: PRINCIPAL_INVESTIGATOR

The Second Affiliated Hospital of Chongqing Medical University

Hu Li

Role: PRINCIPAL_INVESTIGATOR

The Second Affiliated Hospital of Chongqing Medical University

Locations

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2ndChongqingMU

Yuzhong, Chongqing Municipality, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Lina Hu

Role: CONTACT

86-23-63693707

Hu Li

Role: CONTACT

86-18580398481

Facility Contacts

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Li Hu

Role: primary

86-18580398481

References

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Kalliala I, Anttila A, Nieminen P, Halttunen M, Dyba T. Pregnancy incidence and outcome before and after cervical intraepithelial neoplasia: a retrospective cohort study. Cancer Med. 2014 Dec;3(6):1512-6. doi: 10.1002/cam4.300. Epub 2014 Aug 21.

Reference Type BACKGROUND
PMID: 25146172 (View on PubMed)

Kalliala I, Anttila A, Dyba T, Hakulinen T, Halttunen M, Nieminen P. Pregnancy incidence and outcome among patients with cervical intraepithelial neoplasia: a retrospective cohort study. BJOG. 2012 Jan;119(2):227-35. doi: 10.1111/j.1471-0528.2011.03042.x. Epub 2011 Jul 27.

Reference Type BACKGROUND
PMID: 21790950 (View on PubMed)

Other Identifiers

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2017-137

Identifier Type: -

Identifier Source: org_study_id

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