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Cranberry Juice for Preventing Bacteria in Urine During Pregnancy

Cranberry for Prevention of Bacteriuria in Pregnancy

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00093938
Enrollment
360
Registered
2004-10-08
Start date
2004-12-31
Completion date
Unknown
Last updated
2010-01-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Urinary Tract Infection, Bacteriuria

Keywords

Vaccinium macrocarpon, Asymptomatic Bacteriuria

Brief summary

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).

Detailed description

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.

Interventions

Sponsors

National Center for Complementary and Integrative Health (NCCIH)
Lead SponsorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
Yes

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

Design outcomes

Primary

MeasureTime frame
Number of cases of asymptomatic bacteriuria

Secondary

MeasureTime frame
Number of cases of symptomatic urinary tract infection
Compliance with recommended therapy
Number of preterm deliveries

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026