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Creighton Model Effectiveness, Intentions and Behaviors Assessment (CEIBA) (CEIBA)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01012596
Recruitment Status : Completed
First Posted : November 13, 2009
Last Update Posted : May 15, 2013
Department of Health and Human Services
Information provided by (Responsible Party):
Joseph B. Stanford, MD, MSPH, University of Utah

Brief Summary:

The Creighton Model (CrM) FertilityCare System is a natural family planning method that teaches couples to recognize and chart the signs of fertility and infertility in the woman's cycle and to use that knowledge to either achieve or avoid a pregnancy. The method is natural, safe and effective, and it helps the couple understand their fertility. Trained practitioners at FertilityCare Centers teach the Creighton Model across the country, internationally and long distance.

Several FertilityCare Centers and the University of Utah are conducting a study to evaluate the effectiveness of the Creighton Model (CrM) for new and return users wanting to avoid pregnancy. While past studies have shown that the Creighton Model is a highly effective method, this study will use new ways to measure how well it works. This is important because the knowledge gained will improve comparisons between the Creighton Model and other family planning methods. The study will also explore intentions and behaviors of couples to avoid or achieve a pregnancy.

The investigators hypothesize that for the CrM the pregnancy rate during perfect use to avoid pregnancy will be about 1% and the behaviorally determined avoiding-related pregnancy rate for the CrM will be about 6%. The investigators will also evaluate the pregnancy rate during "typical use" without a previously stated intention to conceive (in CrM terms, a mixture of avoiding and achieving-related behavior).

Condition or disease Intervention/treatment
Pregnancy Fertility Behavioral: Creighton Model System of Natural Family Planning

Detailed Description:

There are a variety of natural family planning (NFP) methods available today that differ in algorithm and biomarkers used to identify women's fertile window. This study will directly evaluate the NFP system known as the Creighton Model FertilityCare System (CrM). The Creighton Model System is a well-established educational system about fertility which involves no devices. The CrM teaches women a standardized way of observing and describing their vaginal discharge each day during routine use of the bathroom, and interpreting the changes in vaginal discharge to determine whether they are likely to be fertile that day or not. Vaginal discharge changes as tracked by the CrM are an accurate indicator of the changes in secretions from the uterine cervix that relate to the approach of ovulation.

This study will also examine the relationship between a couple's stated intentions to achieve or avoid a pregnancy during each menstrual cycle with their sexual behavior during the same cycle. There is growing consensus among researchers that current measures of pregnancy intention are simplistic at best, and at worst can be very misleading. One of the purposes of the study is to explore the multiple dimensions of pregnancy motivations, intentions, and behaviors by newer detailed measures.

This study will enroll couples who are new or returning CrM users and who are trying to avoid a pregnancy at the time they begin use of the CrM. The participants will be recruited from CrM FertilityCare Centers. The design is a prospective cohort study, which is the optimal study design to assess different measures of effectiveness and intendedness simultaneously in a group of NFP users. Several of the key measures of intention and behavior required for this study must be assessed prior to the outcome of actual use of CrM over time and the outcome of pregnancy, to avoid recall bias. Outcomes for this study require relatively precise assessment of the timing of both intentions and behaviors, which is simply unavailable from recall. We plan to enroll at least 300 and up to 400 couples in the study. This represents 60% (300/497) of the estimated available and eligible couples learning the CrM for use to avoid pregnancy in one year at the participating FertilityCare Centers.

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Study Type : Observational
Actual Enrollment : 624 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Effectiveness, Intention, and Behavior in Creighton Model NFP Use
Study Start Date : October 2009
Actual Primary Completion Date : October 2012
Actual Study Completion Date : May 2013

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Birth Control

Group/Cohort Intervention/treatment
Creighton Model
New and return users of the Creighton Model FertilityCare System, a method of Natural Family Planning.
Behavioral: Creighton Model System of Natural Family Planning
Participants will learn the Creighton Model, a standardized method of natural family planning, from FertilityCare Practitioners from established FertilityCare Centers. The learning can be done in-person or long distance.
Other Names:
  • Natural Family Planning
  • Ovulation Method
  • Fertility Awareness

Primary Outcome Measures :
  1. Pregnancy rates during perfect and typical use of the Creighton Model FertilityCare System (CrM) to avoid pregnancy in a way directly comparable to the approach used in recent family planning effectiveness studies [ Time Frame: 1 year ]

Secondary Outcome Measures :
  1. The intention status of all pregnancies according to standard measures of intended, mistimed and unwanted pregnancy while recognizing the significant limitations of these measures [ Time Frame: 1 year ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years to 40 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
This study will enroll couples who are new or return Creighton Model (CrM) users and who are trying to avoid a pregnancy at the time they begin use of the CrM. The participants will be recruited from several CrM FertilityCare Centers across the United States and Canada. Participants who do not live near a center will be offered long distance teaching.

Inclusion Criteria:

  • Being a new or return user of the Creighton Model with the stated intention of avoiding pregnancy
  • Sexually active or planning to be sexually active within 6 months of the enrollment date (relevant to some engaged couples who learn CrM)
  • The woman is between the ages of 18 to 40
  • The man is age 18 or older
  • The woman has had at least 2 menstrual flows in the past 3 months or at least one menstrual flow since stopping hormonal birth control
  • The woman is able to complete questionnaires in English

Exclusion Criteria:

  • History of infertility
  • Confirmed pelvic inflammatory disease, surgically confirmed untreated endometriosis, chemotherapy (either man or woman), or radiation to the reproductive tract (either man or woman)
  • Hysterectomy, oophorectomy (ovary removed), tubal ligation, fallopian tube surgery, surgery for ectopic pregnancy, removal of a testicle (orchiectomy) or vasectomy
  • Depo-Provera injection any time in the past 2 years
  • Totally breastfeeding an infant, without any supplements

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01012596

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United States, California
Sacramento Diocese FertilityCare Services
Sacramento, California, United States, 95825
United States, Minnesota
Northland Family Programs: A FertilityCare Center
Duluth, Minnesota, United States, 55102
Twin Cities FertilityCare Center
St. Paul, Minnesota, United States, 55102
United States, Missouri
FertilityCare Center of Kansas City
Blue Springs, Missouri, United States, 64014
St. John's Mercy Medical Center, Department of FertilityCare Services
St. Louis, Missouri, United States, 63141
United States, Nebraska
FertilityCare Center, Diocese of Lincoln
Lincoln, Nebraska, United States, 68501
FertilityCare Center of Omaha
Omaha, Nebraska, United States, 68106
United States, New Hampshire
FertilityCare Services St. Joseph Hospital
Nashua, New Hampshire, United States, 03060
United States, New Mexico
St. Joseph FertilityCare Center
Albuquerque, New Mexico, United States, 87120
United States, Ohio
Caritas FertilityCare Center
Pataskala, Ohio, United States, 43062
United States, Pennsylvania
Center for Women's Health, Spirit FertilityCare Services
Camp Hill, Pennsylvania, United States, 17011
United States, South Carolina
FertilityCare Services: Diocese of Charleston, SC
Greer, South Carolina, United States, 29650
United States, Texas
FertilityCare Center of North Texas
Ft. Worth, Texas, United States, 76137
Women's FertilityCare Services of Houston
Houston, Texas, United States, 88018
United States, Utah
Intermountain FertilityCare Center
Salt Lake City, Utah, United States, 84106
If you don't find a center near you, contact us for Long Distance Learning
Salt Lake City, Utah, United States, 84112
United States, West Virginia
FertilityCare Center of the Upper Ohio Valley
Weirton, West Virginia, United States, 26062
Canada, Ontario
Marguerite Bourgeoys FertilityCare Programme
Toronto, Ontario, Canada, M4C 3B7
Sponsors and Collaborators
University of Utah
Department of Health and Human Services
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Principal Investigator: Joseph B Stanford, MD, MSPH University of Utah

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Responsible Party: Joseph B. Stanford, MD, MSPH, Principal Investigator, University of Utah Identifier: NCT01012596     History of Changes
Other Study ID Numbers: 34487
First Posted: November 13, 2009    Key Record Dates
Last Update Posted: May 15, 2013
Last Verified: May 2013

Keywords provided by Joseph B. Stanford, MD, MSPH, University of Utah:
Natural Family Planning Methods
Ovulation Detection
Cervix Mucus
Birth Control