for females ages 18-37 (full criteria)
Healthy Volunteers
healthy people welcome
study started
estimated completion
Principal Investigator
by Marcelle Cedars, MD (ucsf)
Headshot of Marcelle Cedars
Marcelle Cedars



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

Official Title

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


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 the Gardner grading system. - 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


Infertility INVOcell device Traditional IVF Intra-vaginal culture - INVOcell device Traditional IVF culture


You can join if…

Open to females ages 18-37

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

You CAN'T join if...

  • 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


  • University of California San Francisco - Center for Reproductive Health accepting new patients
    San Francisco California 94158 United States

Lead Scientist at University of California Health

  • Marcelle Cedars, MD (ucsf)
    Professor, Ob/Gyn, Reproductive Sciences, School of Medicine. Authored (or co-authored) 254 research publications


accepting new patients
Start Date
Completion Date
University of California, San Francisco
INVOcell device
Study Type
Expecting 34 study participants
Last Updated