NCT02409745

Brief Summary

Many studies have demonstrated that endometrial scratch significantly increase pregnancy rate in patients undergoing in vitro fertilization and embryo transfer. However, only a limited number of studies have been conducted in frozen thawed transfer (FET) cycle. Nowadays, in FET cycles, endometrial scratch is mainly performed on two different time points: 1) luteal phase in the previous cycle; 2)early follicular phase in the current cycle. However, few studies have compared the effectiveness of those two different endometrial scratch methods performed in different timing. The aim of this study is to find the best timing of endometrial scratch in FET cycles.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
400

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 2015

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 6, 2015

Completed
26 days until next milestone

Study Start

First participant enrolled

February 1, 2015

Completed
2 months until next milestone

First Posted

Study publicly available on registry

April 7, 2015

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2015

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2016

Completed
Last Updated

April 21, 2015

Status Verified

April 1, 2015

Enrollment Period

10 months

First QC Date

January 6, 2015

Last Update Submit

April 18, 2015

Conditions

Keywords

endometrial scratchIVFrandomized controlled studyProspective controlled trialDifferent time to perform endometrial scratchIn vitro fertilizationembryo transfer

Outcome Measures

Primary Outcomes (1)

  • Clinical pregnancy rate

    See heart beat with ultrasonic exam.

    35 days after embryo transfer

Secondary Outcomes (1)

  • Ectopic pregnancy rate

    35 days after embryo transfer

Study Arms (4)

Young age group-Luteal phase

EXPERIMENTAL

Endometrial injury in luteal phase (previous menstrual cycle) for patients undergoing Frozen thawed embryo transfer.

Procedure: endometrial scratch

Young age group-Early follicular phase

ACTIVE COMPARATOR

Endometrial injury in early follicular phase for patients undergoing Frozen thawed embryo transfer.

Procedure: endometrial scratch

Advanced age group-Luteal phase

EXPERIMENTAL

Endometrial injury in luteal phase (previous menstrual cycle) for patients undergoing Frozen thawed embryo transfer.

Procedure: endometrial scratch

Advanced age group-Early follicular phase

ACTIVE COMPARATOR

Endometrial injury in early follicular phase for patients undergoing Frozen thawed embryo transfer.

Procedure: endometrial scratch

Interventions

local injury to the endometrium by Pipelle

Also known as: endometrial injury
Advanced age group-Early follicular phaseAdvanced age group-Luteal phaseYoung age group-Early follicular phaseYoung age group-Luteal phase

Eligibility Criteria

Age20 Years - 40 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • To be aged younger than 40 years old;
  • At least one period IVF-ET (fresh or thaw) has been done and not pregnant after at least one qualified blastocyst (more than 3BB) or two qualified embryos (more than II/6) have been transferred;
  • There are qualified embryos thawed and the thaw-ET period will be taken.

You may not qualify if:

  • Malformation of uterus: such as uterus uni-corns, uterus bi-corns, untreated uterus septus, etc.;
  • History of endometrial diseases: such as intrauterine adhesion, uterine cavity tuberculosis, severe dysplasia of endometrium, etc.;
  • Multiple myomata or endometrioma which causes uterus oppression;
  • Multiple and recurrent endometrial polyps;
  • Pelvic tuberculosis, endometriosis.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Reproductive Medical Center, 1st Affiliated hospital of Zhengzhou University

Zhengzhou, Henan, 450052, China

RECRUITING

Related Publications (5)

  • Yeung TW, Chai J, Li RH, Lee VC, Ho PC, Ng EH. The effect of endometrial injury on ongoing pregnancy rate in unselected subfertile women undergoing in vitro fertilization: a randomized controlled trial. Hum Reprod. 2014 Nov;29(11):2474-81. doi: 10.1093/humrep/deu213. Epub 2014 Sep 8.

    PMID: 25205759BACKGROUND
  • Nastri CO, Lensen SF, Gibreel A, Raine-Fenning N, Ferriani RA, Bhattacharya S, Martins WP. Endometrial injury in women undergoing assisted reproductive techniques. Cochrane Database Syst Rev. 2015 Mar 22;(3):CD009517. doi: 10.1002/14651858.CD009517.pub3.

    PMID: 25803542BACKGROUND
  • Potdar N, Gelbaya T, Nardo LG. Endometrial injury to overcome recurrent embryo implantation failure: a systematic review and meta-analysis. Reprod Biomed Online. 2012 Dec;25(6):561-71. doi: 10.1016/j.rbmo.2012.08.005. Epub 2012 Sep 12.

    PMID: 23063812BACKGROUND
  • El-Toukhy T, Sunkara S, Khalaf Y. Local endometrial injury and IVF outcome: a systematic review and meta-analysis. Reprod Biomed Online. 2012 Oct;25(4):345-54. doi: 10.1016/j.rbmo.2012.06.012. Epub 2012 Jun 26.

    PMID: 22885017BACKGROUND
  • Dain L, Ojha K, Bider D, Levron J, Zinchenko V, Walster S, Dirnfeld M. Effect of local endometrial injury on pregnancy outcomes in ovum donation cycles. Fertil Steril. 2014 Oct;102(4):1048-54. doi: 10.1016/j.fertnstert.2014.06.044. Epub 2014 Jul 23.

    PMID: 25064410BACKGROUND

MeSH Terms

Conditions

Infertility

Condition Hierarchy (Ancestors)

Genital DiseasesUrogenital Diseases

Study Officials

  • Yingpu Sun, MD,PhD

    Reproductive Medical Center, First Affiliated Hospital of Zhengzhou University

    STUDY CHAIR

Central Study Contacts

Yingpu Sun, MD,PhD

CONTACT

Linli Hu, MD,PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director of Reproductive Medical Center

Study Record Dates

First Submitted

January 6, 2015

First Posted

April 7, 2015

Study Start

February 1, 2015

Primary Completion

December 1, 2015

Study Completion

February 1, 2016

Last Updated

April 21, 2015

Record last verified: 2015-04

Locations