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IVM With Low Cost Priming, Enhanced Oocyte Recovery, and Delayed Transfer

A Prospective Series of IVF Cases Utilizing in Vitro Maturation (IVM) With Low Cost Priming, Enhanced Oocyte Recovery, and Delayed Embryo Transfer Using a Subsequent Frozen Embryo Transfer Cycle

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04149496
Acronym
IVMprt
Enrollment
300
Registered
2019-11-04
Start date
2019-05-10
Completion date
2023-12-31
Last updated
2019-11-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Polycystic Ovary Syndrome

Keywords

IVM, in vitro maturation, polycystic ovarian syndrome, PCOS, Steiner-Tan needle, oocyte maturation

Brief summary

A protocol was developed to improve pregnancy results after IVM compared to results from studies in the literature. Differences from most published protocols include the use of the Steiner-Tan needle to optimize oocyte environment during oocyte retrieval, use of oral medications and very low doses of FSH, and delayed embryo transfer during subsequent warmed cryo-preserved embryo transfer. Eligible patient have a PCO pattern in their ovaries during transvaginal ultrasound.

Detailed description

All participants are candidates for IVF having PCOS or having PCO patterns in their ovaries who wish to undertake IVM for the potential advantages that it holds. All cycles are proceeded by oral contraceptive use for cycle scheduling purposes. Priming is done with oral letrozole with the addition of 25-75 IU daily starting after 2 days of letrozole. HCG is given when several follicle have diameters 8 mm or greater and no follicles have diameters greater than 13 mm. Oocyte retrieval is done approximately 38 hours later. A Steiner-Tan needle is used for oocyte retrieval in a manner that minimizes the amount of time that an oocyte is out of the ovary and not in a controlled laboratory environment. Oocytes are assessed for maturity for up to 48 hours post retrieval. If mature, oocytes are injected with sperm using ICSI. Embryos are grown to blastocysts and all blastocyst are vitrified. Warmed cryo-preserved blastocyst are transferred using routine IVF protocols during a subsequent cycle.

Interventions

COMBINATION_PRODUCTin vitro maturation of oocytes

Immature oocytes (rather than mature oocytes) are harvested as in IVF. These oocytes are allowed to mature in the laboratory before fertilization

Sponsors

Bruce Rose, MD
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Prospective series

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 38 Years
Healthy volunteers
No

Inclusion criteria

* PCO pattern with \> 25 antral follicles * AMH \> 3.5

Exclusion criteria

* BMI \> 35 * body morphology making transvaginal retrieval difficult or impossible * complicating medical condition making pregnancy or IVF relatively contra-indicated

Design outcomes

Primary

MeasureTime frameDescription
Percentage of treated patients having an ongoing pregnancy10 months post transferpregnancy with cardiac activity (by history or observations) after 12 weeks
Percentage of treated patients having a clinical pregnancy12 weeks post transferultrasound evidence of pregnancy in uterus or tissue evidence of pregnancy

Secondary

MeasureTime frameDescription
Percentage of retrieved oocytes which fertilized per patient4 days post retrievalproportion of mature oocytes which display pronuclei
Percentage of fertilized oocytes which became blastocysts per patient8 days post retrievalproportion of fertilized oocytes which form a fluid filled cavity
Percentage of patients who have a biochemical pregnancy after therir first transfer28 days post transferproportion of patients with an hCG level greater than 5 measured post first transfer
Percentage of fertilized oocytes which divided6 days post retrievalproportion of fertilized oocytes which become 2 or more cells
Percentage of retrieved oocytes which matured per patient2 days post retrievalproportion of retrieved oocytes which are mature (polar body present) within 48 hours of retrieval

Other

MeasureTime frameDescription
Number of clinical pregnancies from subsequent transfersup to one year after transfer of last patient enrolledNumber of clinical pregnancies from all blastocyst transfers related to the retrieval
Number of ongoing pregnancies from subsequent transfersup to one year after transfer of last patient enrolledNumber of ongoing pregnancies from blastocyst transfers related to the retrieval

Countries

United States

Contacts

Primary ContactBruce I Rose, MD, PhD
brose@brownfertility.com904-260-0352
Backup ContactSamuel Brown, MD
sbrown@brownfertility.com904-260-0352

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026