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The Effects of Physiologic Oxygen Tension on Clinical In Vitro Fertilization Outcomes (PhOx)
This study is not yet open for participant recruitment.
Verified by Yale University, November 2009
First Received: November 6, 2009   Last Updated: November 24, 2009   History of Changes
Sponsor: Yale University
Collaborators: Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
University of Pennsylvania
University of California, San Francisco
University of Michigan
Wayne State University
Information provided by: Yale University
ClinicalTrials.gov Identifier: NCT01010386
  Purpose

Primary Aim

  • Evaluate whether human embryo exposure to physiologic levels of oxygen during culture improves the percentage of women who deliver a baby following in vitro fertilization and embryo transfer.

Hypothesis to be tested: Physiologic oxygen tension during embryo culture, which approximates the oxygen tension in the fallopian tube and uterus, improves live birth rate in clinical In Vitro Fertilization Embryo Transfer (IVF-ET).

Secondary Aims

Evaluate whether human embryo exposure to physiologic levels of oxygen during culture during in vitro fertilization and embryo transfer

  • improves embryo cleavage
  • improves clinical pregnancy rate
  • reduces multiple pregnancy rate
  • reduces miscarriage rate

Hypothesis to be tested: Physiologic oxygen tension during embryo culture, which approximates the oxygen tension in the fallopian tube and uterus, improves embryo cleavage and clinical pregnancy rates and reduces miscarriage rates in clinical IVF-ET.


Condition Intervention Phase
Pregnancy
Infertility
Procedure: Atmospheric oxygen tension
Procedure: Physiologic oxygen tension
Phase III

Study Type: Interventional
Study Design: Treatment, Randomized, Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Parallel Assignment, Safety/Efficacy Study
Official Title: A Prospective, Randomized, Double-Blind, Controlled Clinical Trial of the Effects of Oxygen Tension on Clinical In Vitro Fertilization Outcomes

Resource links provided by NLM:


Further study details as provided by Yale University:

Primary Outcome Measures:
  • The primary outcome is live birth rate. [ Time Frame: November 2009 to November 2011 ] [ Designated as safety issue: Yes ]

Secondary Outcome Measures:
  • The impact of treatment on embryo cleavage [ Time Frame: November 2009 to November 2011 ] [ Designated as safety issue: No ]
  • The impact of treatment on clinical pregnancy [ Time Frame: November 2009 to November 2011 ] [ Designated as safety issue: No ]
  • The impact of treatment on multiple pregnancy [ Time Frame: November 2009 to November 2011 ] [ Designated as safety issue: No ]
  • The impact of treatment on miscarriage [ Time Frame: November 2009 to November 2011 ] [ Designated as safety issue: No ]

Estimated Enrollment: 1800
Study Start Date: January 2010
Estimated Study Completion Date: November 2012
Estimated Primary Completion Date: November 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
atmospheric (20%) oxygen tension: Placebo Comparator
Couples will have their gametes and embryos placed in the currently widely used atmospheric (20%) oxygen atmosphere
Procedure: Atmospheric oxygen tension
Couples will have their gametes and embryos placed in the currently widely used atmospheric (20%) oxygen atmosphere
physiologic (5%) oxygen tension: Active Comparator
Couples will have their gametes and embryos placed in a physiologic (5%) oxygen atmosphere
Procedure: Physiologic oxygen tension
Couples will have their gametes and embryos placed in a physiologic (5%) oxygen atmosphere

Detailed Description:

Study Design

This will be a multi-center, prospective, double-blind clinical trial of physiologic (5%) oxygen tension in culture media vs. standard of care, atmospheric (SOC, 20%) oxygen tension with 1800 eligible couples recruited to participate. The randomization scheme will be coordinated through the central data coordinating center (DCC-Yale) and the randomization will be stratified by age group of the woman (18-34, 35-37, 38-40 and 40-42) and each participating site.

Treatment

Couples will be randomized to either have their gametes and embryos placed in a physiologic (5%) oxygen atmosphere or in the currently widely used atmospheric (20%) oxygen atmosphere.

  Eligibility

Ages Eligible for Study:   18 Years to 42 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

The critical inclusion criteria will be the diagnosis of infertility and the need for in vitro fertilization as determined by the treating clinician. (We do not plan to alter the standard of care for the indication for IVF at any of the sites.)

  • Couple's age must be between 18 and 42 years old
  • Patient and partner are scheduled to undergo in vitro fertilization for treatment of infertility
  • Couple able to participate in a research project and A) Able to understand study requirements B) Willing to sign informed consent C) Able to return for required follow-up D) Have access to telephone

Exclusion Criteria:

Critical exclusion criteria for this trial will be medical conditions which may complicate treatment or no plans to undergo embryo transfer, as in patients banking embryos prior to cancer therapy. In addition, donor egg and frozen embryo transfer cycles will be excluded.

  • Medical contraindication to egg retrieval or pregnancy
  • Inability to participate in a research project (Non-English speaking or unable to read or write and/or concurrent participation in any other interventional trial)
  • Couple with more than three previous failed IVF cycles
  • Donor egg and frozen embryo transfer cycles
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT01010386

Contacts
Contact: Heping Zhang, PhD 203-785-5185 rmn-Coordinators@panlists.yale.edu
Contact: Meizhuo Zhang, PhD 203-785-6759 meizhuo.zhang@yale.edu

Locations
United States, Connecticut
Yale University
New Haven, Connecticut, United States, 06511
United States, Michigan
Wayne State University
Detroit, Michigan, United States, 48201
United States, Pennsylvania
University of Pennsylvania
Philadelphia, Pennsylvania, United States, 19104
Sponsors and Collaborators
Yale University
University of Pennsylvania
University of California, San Francisco
University of Michigan
Wayne State University
Investigators
Study Chair: Esther Eisenberg, MD, MPH Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Study Director: Nanette Santoro, MD Albert Einstein College of Medicine of Yeshiva University
Principal Investigator: Christos Coutifaris, MD, PhD University of Pennsylvania
Study Director: Marcelle Cedars, MD University of California, San Francisco
Study Director: Michael Diamond, MD Wayne State University
Study Director: Gregory Christman, MD University of Michigan
  More Information

Additional Information:
No publications provided

Responsible Party: University of Pennsylvania ( Christos Coutifaris, MD, PhD )
Study ID Numbers: RMN-PhOx
Study First Received: November 6, 2009
Last Updated: November 24, 2009
ClinicalTrials.gov Identifier: NCT01010386     History of Changes
Health Authority: United States: Institutional Review Board

Keywords provided by Yale University:
Pregnancy
Infertility
Physiologic Oxygen Tension
Atmospheric Oxygen Tension

Additional relevant MeSH terms:
Genital Diseases, Female
Infertility
Genital Diseases, Male

ClinicalTrials.gov processed this record on February 08, 2010