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Comparing Intra-vaginal Culture of Embryos to In-vitro Culture of Embryos With Minimal Stimulation

Randomized Controlled Trial Comparing Intra-vaginal Culture of Embryos Using INVOcell Device to In-vitro Culture of Embryos Using Minimal Stimulation Protocols

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02802176
Enrollment
39
Registered
2016-06-16
Start date
2016-10-31
Completion date
2022-08-25
Last updated
2023-07-12

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

Conditions

Infertility

Brief summary

The purpose of this study is to evaluate implantation rate with intra-vaginal culture (IVC) with the INVOcell device versus traditional In-Vitro Fertilization (IVF) while using minimal stimulation protocols

Detailed description

This is a Phase IV, single center randomized controlled trial evaluating intra-vaginal culture (IVC) using INVOcell versus traditional In-Vitro Fertilization (IVF) using oral stimulation or minimal gonadotropin stimulation protocols. The pilot aims to includes 40 women who will be randomized to either the intra-vaginal culture group (N=20) using INVOcell or to the traditional IVF group (N=20). Primary aim is implantation rate, which is defined by number gestational sacs seen on early pregnancy ultrasound divided by number of embryos transferred. Secondary aims are: * Embryo quality, which is measured by system similar to the Gardner grading system at cleavage stage. Reported quality will be converted to the simplified SART embryo scoring system which provides an overall categorical embryo grade of Good, Fair or Poor. * Fertilization rate, which is defined by the total number of fertilized oocytes divided by total number of mature oocytes retrieved. This comparison will take place on day-3, as that is when the IVC embryos will be assessed. * Clinical pregnancy rate, which is defined by the number of fetal poles with heartbeat seen on ultrasound divided by the number of embryos transferred. * Live birth rate, which is defined by the number of living babies delivered divided by the number of transfers

Interventions

DEVICEINVOcell device

intra-vaginal culture of embryos using INVOcell device

OTHERTraditional IVF

traditional culture of embryos in-vitro

Sponsors

University of California, San Francisco
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Arm 1: intra-vaginal culture using INVOcell device. Arm 2: Traditional In-Vitro Fertilization (IVF) culture in an embryology laboratory

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 37 Years
Healthy volunteers
Yes

Inclusion criteria

* Normal uterine cavity * One or more years of infertility * Normal male partner semen analysis

Exclusion criteria

* Age \<18 years old or \>37 years old * Antral Follicle Count (AFC) \<8 * Abnormal male partner semen analysis or use of donor sperm * Vaginal inflammation or genital (vaginal, uterine, tubal) infection * Uncontrolled chronic disease (such as uncontrolled diabetes or hypertension) * Uterine anatomic abnormalities * Allergy to plastics or inability to use diaphragm retention device * Untreated hydrosalpinx * Current alcohol abuse (defined by \>14 drinks/week) * Prior history of IVF cycle where fertilization did not occur * History of recurrent pregnancy loss

Design outcomes

Primary

MeasureTime frameDescription
Implantation Rateapproximately 4 weeks following randomization. Clinically this is typically done around 6 weeks of gestational agedefined by number gestational sacs seen on early pregnancy ultrasound typically done at 6 weeks of gestational age divided by number of embryos transferred

Secondary

MeasureTime frameDescription
Embryo Qualitymeasured after 3 days of incubation-Embryo quality, which is measured by system similar to the Gardner grading system at cleavage stage. Reported quality will be converted to the simplified SART embryo scoring system which provides an overall categorical embryo grade of Good, Fair or Poor.
Fertilization Ratemeasured after 3 days of incubationdefined by the total number of fertilized oocytes divided by total number of mature oocytes retrieved
Clinical Pregnancy Rateapproximately 4 weeks following randomization. Clinically this is typically done around 6 weeks of gestational agewhich is defined by the number of fetal poles with heartbeat seen on early pregnancy ultrasound typically done at 6 weeks of gestational age divided by the number of embryos transferred
Live Birth Rate9 months after embryo transferwhich is defined by the number of living babies delivered divided by the number of transfers

Countries

United States

Participant flow

Recruitment details

Recruitment occurred between October 2016 to February 2022, apart from a two year period of the COVID-19 Pandemic. Potential subjects were recruited from patient populations of the UCSF Center for Reproductive Health, the Zuckerberg San Francisco General Hospital and the general public.

Pre-assignment details

9 of 39 enrolled participants screen failed out of the study prior to randomization assignment. 6 never moved forward with starting clinical fertility treatment, 1 responded poorly to the minimal stimulation medication protocol that was part of the study design and couldn't proceed with the egg retrieval procedure, 1 was at risk for mild Ovarian Hyperstimulatory Syndrome and 1 voluntarily dropped out of the study prior to randomization due to financial and insurance coverage reasons.

Participants by arm

ArmCount
Experimental: Intra-vaginal Culture - INVOcell Device
3 day intra-vaginal incubation of embryos using INVOcell device
14
Active Comparator: Traditional IVF Culture
3 day traditional In Vitro Fertilization embryo incubation
16
Total30

Baseline characteristics

CharacteristicActive Comparator: Traditional IVF CultureTotalExperimental: Intra-vaginal Culture - INVOcell Device
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
16 Participants30 Participants14 Participants
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
United States
16 participants30 participants14 participants
Sex: Female, Male
Female
16 Participants30 Participants14 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 140 / 16
other
Total, other adverse events
0 / 140 / 16
serious
Total, serious adverse events
0 / 140 / 16

Outcome results

Primary

Implantation Rate

defined by number gestational sacs seen on early pregnancy ultrasound typically done at 6 weeks of gestational age divided by number of embryos transferred

Time frame: approximately 4 weeks following randomization. Clinically this is typically done around 6 weeks of gestational age

Population: 3 participants in the Traditional IVF culture arm and 2 participants in the intra-vaginal culture arm were excluded from analysis as they did not undergo embryo transfers.

ArmMeasureValue (MEAN)Dispersion
Intra-vaginal Culture - INVOcell DeviceImplantation Rate12.50 percentage of embryo transfersStandard Deviation 0.2976
Traditional IVF CultureImplantation Rate42.31 percentage of embryo transfersStandard Deviation 43.17
Secondary

Clinical Pregnancy Rate

which is defined by the number of fetal poles with heartbeat seen on early pregnancy ultrasound typically done at 6 weeks of gestational age divided by the number of embryos transferred

Time frame: approximately 4 weeks following randomization. Clinically this is typically done around 6 weeks of gestational age

Population: 3 participants in the Traditional IVF culture arm and 2 participants in the intra-vaginal culture arm were excluded from analysis as they did not undergo embryo transfers.

ArmMeasureValue (MEAN)Dispersion
Intra-vaginal Culture - INVOcell DeviceClinical Pregnancy Rate12.5 percentage of embryo transfersStandard Deviation 29.76
Traditional IVF CultureClinical Pregnancy Rate46.15 percentage of embryo transfersStandard Deviation 45.83
Secondary

Embryo Quality

-Embryo quality, which is measured by system similar to the Gardner grading system at cleavage stage. Reported quality will be converted to the simplified SART embryo scoring system which provides an overall categorical embryo grade of Good, Fair or Poor.

Time frame: measured after 3 days of incubation

Population: 1 participant from the intra-vaginal culture arm and 2 participants from the traditional IVF culture arm were excluded from the analysis due fertilization failures and no embryos on culture day 3 to grade.

ArmMeasureCategoryValue (COUNT_OF_UNITS)
Intra-vaginal Culture - INVOcell DeviceEmbryo QualityGood34 Culture day 3 cleavage-stage embryos
Intra-vaginal Culture - INVOcell DeviceEmbryo QualityFair4 Culture day 3 cleavage-stage embryos
Intra-vaginal Culture - INVOcell DeviceEmbryo QualityPoor7 Culture day 3 cleavage-stage embryos
Traditional IVF CultureEmbryo QualityGood48 Culture day 3 cleavage-stage embryos
Traditional IVF CultureEmbryo QualityFair4 Culture day 3 cleavage-stage embryos
Traditional IVF CultureEmbryo QualityPoor6 Culture day 3 cleavage-stage embryos
Secondary

Fertilization Rate

defined by the total number of fertilized oocytes divided by total number of mature oocytes retrieved

Time frame: measured after 3 days of incubation

ArmMeasureValue (MEAN)Dispersion
Intra-vaginal Culture - INVOcell DeviceFertilization Rate61.75 percentage of oocytes fertilizedStandard Deviation 25.19
Traditional IVF CultureFertilization Rate63.4 percentage of oocytes fertilizedStandard Deviation 30.55
Secondary

Live Birth Rate

which is defined by the number of living babies delivered divided by the number of transfers

Time frame: 9 months after embryo transfer

Population: 3 participants in the Traditional IVF culture arm and 2 participants in the intra-vaginal culture arm were excluded from analysis as they did not undergo embryo transfers.

ArmMeasureValue (MEAN)Dispersion
Intra-vaginal Culture - INVOcell DeviceLive Birth Rate12.5 percentage of embryo transfersStandard Deviation 29.76
Traditional IVF CultureLive Birth Rate38.46 percentage of embryo transfersStandard Deviation 44.52

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