Cranberry Juice for Preventing Bacteria in Urine During Pregnancy

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: NCT00093938
Recruitment Status : Completed
First Posted : October 8, 2004
Last Update Posted : January 14, 2010
Information provided by:
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

October 7, 2004
October 8, 2004
January 14, 2010
December 2004
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Number of cases of asymptomatic bacteriuria
Same as current
Complete list of historical versions of study NCT00093938 on Archive Site
  • Number of cases of symptomatic urinary tract infection
  • Compliance with recommended therapy
  • Number of preterm deliveries
Same as current
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Cranberry Juice for Preventing Bacteria in Urine During Pregnancy
Cranberry for Prevention of Bacteriuria in Pregnancy
The purpose of this study is to determine the amount of cranberry juice that is most effective in preventing a condition in pregnant women that often leads to urinary tract infections (UTIs).

Asymptomatic bacteriuria (ASB) infection, a condition in which a large number of bacteria are present in the urine, often precedes the development of symptomatic UTIs. UTIs are common among women and may create complications during pregnancy. By incorporating cranberry juice into their diets, pregnant women may be able to lower their risk for UTIs caused by ASB, and cranberry juice may also prevent preterm labor and birth. This study will determine the cranberry juice-containing regimen that will work best for preventing ASB in pregnant women.

For the duration of their pregnancy, participants in this study will be randomly assigned to one of three treatment arms: cranberry juice once a day, cranberry juice three times a day, or a placebo beverage three times a day. The level of bacteria in their urine will be measured at monthly study visits. Women who test positive for a UTI will receive oral antibiotic therapy. All women will be monitored throughout their pregnancies for UTIs and other related complications.

Phase 1
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Prevention
  • Urinary Tract Infection
  • Bacteriuria
Drug: Cranberry juice
Not Provided

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Same as current
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Inclusion Criteria:

  • Intrauterine pregnancy
  • Mother and fetus in good health
  • Mother pregnant for 16 weeks or less

Exclusion Criteria:

  • Suspected nonviable or ectopic pregnancy
  • Mother plans to terminate pregnancy
  • Antimicrobial therapy, for reasons other than urinary tract infections, within 2 weeks prior to study start
  • Significant underlying medical complications that may interfere with the study
Sexes Eligible for Study: Female
18 Years and older   (Adult, Older Adult)
Contact information is only displayed when the study is recruiting subjects
United States
DK068527-01 (completed)
Not Provided
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National Center for Complementary and Integrative Health (NCCIH)
Not Provided
Principal Investigator: Deborah A. Wing, MD University of California, Irvine Medical Center/Long Beach Memorial Medical Center
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
January 2010

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP