Study on the prediction of embryo implantation success with the method of pinopodes detection in IVF-ET treatment
| ISRCTN | ISRCTN26300668 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN26300668 |
| Secondary identifying numbers | N/A |
- Submission date
- 20/09/2015
- Registration date
- 26/11/2015
- Last edited
- 10/07/2018
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Urological and Genital Diseases
Plain English summary of protocol
Background and study aims
In order for a woman to become pregnant, the fertilised egg must attach (implant) itself to the lining of the womb (endometrium). In order for this to be successful, the implantation must happen within a small window of opportunity, known as the “implantation window”. It is only within the implantation window that the endometrium is receptive, and the fertilised egg (embryo) can attach to it. In vitro fertilisation (IVF) is a technique used to help people with fertility problems to have a baby. During IVF, the egg is fertilised by the sperm outside of the body to create an embryo and then returned to the woman’s uterus to develop. Although IVF has become more and more successful in recent years, there is still a relatively high failure rate. In many cases, some of the embryos are frozen so that they can be used in the next cycle of IVF (frozen embryo transfer). A possible reason for this is that the implantation window is being missed, and so the embryos are not able to attach. Pinopodes, are large rounded nodules found on the endometrium. It is thought that pinopode production is related to the hormone progesterone. Studies have shown that the presence of lots of pinopodes is linked to successful implantation. The aim of this study is to find out the whether detecting pinopodes can help to predict the window of implantation of endometrium, increasing the number of implantations.
Who can participate?
Women aged below 35 years, in their first round of IVF treatment.
What does the study involve?
All participants receive hormone replacement therapy (injection of natural female hormones) from day 3 of their menstrual cycle. They receive injections of 3mg Oestradiol valerate (a female oestrogen hormone) for 7 days, increasing toe 4mg twice a day for the next 6 days. The endometrium (lining of the womb) is now a 8mm in thickness, and a sample is taken so that it can be looked at under a microscope to look for pinopodes. The amount of pinopodes found are then used to predict the likelihood of the woman becoming pregnant in her next cycle, when she undergoes IVF. In the next cycle, the woman receives the same hormone replacement therapy as well as having a thawed embryo (frozen from a previous cycle) transferred into her womb. The amount of women who successfully become pregnant is then recorded and compared to the predictions from the pinopode detection.
What are the possible benefits and risks of participating?
Participants may benefit from a better chance of pregnancy, if the detection of pinopodes is accurate. There are no significant risks of participating, however participants may experience vaginal bleeding for infection after biopsy.
Where is the study run from?
Sir Run Run Shaw Hospital (China)
When is the study starting and how long is it expected to run for?
October 2015 to May 2016
Who is funding the study?
Heath and Family Planning Commission of ZheJiang Province (China)
Who is the main contact?
Ms Lijuan Zhao
Contact information
Scientific
N0.3 Road
QingChun Dong
Hangzhou
310016
China
 ORCID ID |
0000-0001-6802-7646 |
|---|
Study information
| Study design | Prospective cohort study |
|---|---|
| Primary study design | Observational |
| Secondary study design | Cohort study |
| Study setting(s) | Hospital |
| Study type | Diagnostic |
| Participant information sheet | Not available in web format, please use the contact details to request a patient information sheet |
| Scientific title | The pinopodes detection could predict the endometrial receptivity in infertile women |
| Study objectives | Pinopodes could be considered as a potential biological marker of endometrial receptivity. Detecting the pinopodes may have great clinical value in predicting the window of implantation of endometrium. |
| Ethics approval(s) | Ethic committee Sir Run Run Shaw Hospital, 30/10/2015, ref: 20151105-9 |
| Health condition(s) or problem(s) studied | Infertility |
| Intervention | Frozen-thawed embryo transfer (FET) is a safe and cost-effective adjunct to In Vitro Fertilization (IVF) treatment. Endometrial preparation protocols for FET commonly include natural and hormone replacement treatment (HRT). In the study, all patients undergo a modeling HRT cycle. That is, from day 3 of the menstrual cycle with Oestradiol valerate (Progynova; Schering AG, Berlin, Germany) 3 mg two times a day for 7 days, increasing to 4 mg two times a day for the next 6 days. When the endometrium reached a thickness of 8mm, then progesterone were consecutively injected IM 80mg for 6 days in all patients. Endometrial biopsies are taken on the day after the last progesterone injection, for pinopode detection by Scanning Electron Microscopy (SEM). The results from the pinopode detection will be used to predict the outcome of the next HRT-FET cycle the patients undergo. In the next cycle, all patients will undergo conventional HRT-FET regimes. All subjects were followed up whether clinical pregnancy in 5 weeks -7 weeks after FET operation. |
| Intervention type | Other |
| Primary outcome measure | Embryo implantation rate is determined by measuring the number of gestational sacs present on ultrasound divided by the number of embryos transferred 5-7 weeks after embryo transfer. |
| Secondary outcome measures | Clinical pregnancy rate is determined by testing serum hCG levels and transvaginal ultrasound scanning 5-7 weeks after embryo transfer. |
| Overall study start date | 01/10/2015 |
| Completion date | 30/06/2017 |
Eligibility
| Participant type(s) | Patient |
|---|---|
| Age group | Adult |
| Sex | Female |
| Target number of participants | 92 cases |
| Key inclusion criteria | 1. Female participants only 2. Aged below 35 years 3. Tube factors or male factor infertility 4. First IVF treatment |
| Key exclusion criteria | 1. Uterine organic diseases such as uterine fibroids or denomyosis 2. Internal and external genital malformation and hydrosalpinx |
| Date of first enrolment | 30/10/2015 |
| Date of final enrolment | 01/05/2016 |
Locations
Countries of recruitment
- China
Study participating centre
Department of Obstetrics and Gynecology
Zhejiang University School of Medicine
3 Qingchun E Rd
Hangzhou
310016
China
Sponsor information
Government
No,216 Road
QingChun
Hangzhou
310002
China
"ROR" |
https://ror.org/010qdt721 |
|---|
Funders
Funder type
Government
No information available
Results and Publications
| Intention to publish date | 31/12/2017 |
|---|---|
| Individual participant data (IPD) Intention to share | Yes |
| IPD sharing plan summary | Available on request |
| Publication and dissemination plan | Planned publication in a reproduction related journal. |
| IPD sharing plan |
Study outputs
| Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
|---|---|---|---|---|---|
| Results article | results | 01/12/2017 | Yes | No |
Editorial Notes
10/07/2018: Publication reference added.
