DrugLib.com — Drug Information Portal

Rx drug information, pharmaceutical research, clinical trials, news, and more

Creighton Model Effectiveness, Intentions and Behaviors Assessment (CEIBA)

Information source: University of Utah
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Pregnancy; Fertility

Intervention: Creighton Model System of Natural Family Planning (Behavioral)

Phase: N/A

Status: Completed

Sponsored by: University of Utah

Official(s) and/or principal investigator(s):
Joseph B Stanford, MD, MSPH, Principal Investigator, Affiliation: University of Utah


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).

Clinical Details

Official title: Effectiveness, Intention, and Behavior in Creighton Model NFP Use

Study design: Observational Model: Cohort, Time Perspective: Prospective

Primary outcome: 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

Secondary outcome: The intention status of all pregnancies according to standard measures of intended, mistimed and unwanted pregnancy while recognizing the significant limitations of these measures

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.


Minimum age: 18 Years. Maximum age: 40 Years. Gender(s): Both.


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

Locations and Contacts

Sacramento Diocese FertilityCare Services, Sacramento, California 95825, United States

Northland Family Programs: A FertilityCare Center, Duluth, Minnesota 55102, United States

Twin Cities FertilityCare Center, St. Paul, Minnesota 55102, United States

FertilityCare Center of Kansas City, Blue Springs, Missouri 64014, United States

St. John's Mercy Medical Center, Department of FertilityCare Services, St. Louis, Missouri 63141, United States

FertilityCare Center, Diocese of Lincoln, Lincoln, Nebraska 68501, United States

FertilityCare Center of Omaha, Omaha, Nebraska 68106, United States

FertilityCare Services St. Joseph Hospital, Nashua, New Hampshire 03060, United States

St. Joseph FertilityCare Center, Albuquerque, New Mexico 87120, United States

Caritas FertilityCare Center, Pataskala, Ohio 43062, United States

Marguerite Bourgeoys FertilityCare Programme, Toronto, Ontario M4C 3B7, Canada

Center for Women's Health, Spirit FertilityCare Services, Camp Hill, Pennsylvania 17011, United States

FertilityCare Services: Diocese of Charleston, SC, Greer, South Carolina 29650, United States

FertilityCare Center of North Texas, Ft. Worth, Texas 76137, United States

Women's FertilityCare Services of Houston, Houston, Texas 88018, United States

If you don't find a center near you, contact us for Long Distance Learning, Salt Lake City, Utah 84112, United States

Intermountain FertilityCare Center, Salt Lake City, Utah 84106, United States

FertilityCare Center of the Upper Ohio Valley, Weirton, West Virginia 26062, United States

Additional Information

Study Website

Starting date: October 2009
Last updated: May 13, 2013

Page last updated: August 23, 2015

-- advertisement -- The American Red Cross
Home | About Us | Contact Us | Site usage policy | Privacy policy

All Rights reserved - Copyright DrugLib.com, 2006-2017