Trial Outcomes & Findings for Broccoli Sprout Intervention in Qidong, P.R. China (NCT NCT01437501)

NCT ID: NCT01437501

Last Updated: 2018-08-16

Results Overview

Urinary excretion of benzene mercapturic acid (S-PMA) in 12 hour overnight void at 12 weeks

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

291 participants

Primary outcome timeframe

Endpoints were assessed on urine samples collected at the end of the intervention on week 12.

Results posted on

2018-08-16

Participant Flow

1205 Individuals were recruited from HeHe Township in Qidong, PRC for eligibility screening at 3 medical clinics within the township in September 2011.

Participant milestones

Participant milestones
Measure
Broccoli Sprout Extract Beverage
Broccoli Sprout Extract Beverage : Broccoli Sprout Extract Beverage: 600 micromole glucoraphanin and 40 micromole sulforaphane dissolved in 100 mL dilute pineapple and lime juice daily for 84 days.
Placebo Beverage
placebo beverage : 100 mL of dilute pineapple and lime juice daily for 84 days.
Overall Study
STARTED
148
143
Overall Study
COMPLETED
135
132
Overall Study
NOT COMPLETED
13
11

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Broccoli Sprout Intervention in Qidong, P.R. China

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Broccoli Sprout Extract Beverage
n=148 Participants
Broccoli Sprout Extract Beverage : Broccoli Sprout Extract Beverage: 600 micromole glucoraphanin and 40 micromole sulforaphane dissolved in 100 mL dilute pineapple and lime juice daily for 84 days.
Placebo Beverage
n=143 Participants
placebo beverage : 100 mL of dilute pineapple and lime juice daily for 84 days.
Total
n=291 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
148 Participants
n=5 Participants
143 Participants
n=7 Participants
291 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Continuous
51.1 years
STANDARD_DEVIATION 9.4 • n=5 Participants
52.6 years
STANDARD_DEVIATION 7.7 • n=7 Participants
51.8 years
STANDARD_DEVIATION 8.7 • n=5 Participants
Sex: Female, Male
Female
118 Participants
n=5 Participants
111 Participants
n=7 Participants
229 Participants
n=5 Participants
Sex: Female, Male
Male
30 Participants
n=5 Participants
32 Participants
n=7 Participants
62 Participants
n=5 Participants
Region of Enrollment
China
148 participants
n=5 Participants
143 participants
n=7 Participants
291 participants
n=5 Participants

PRIMARY outcome

Timeframe: Endpoints were assessed on urine samples collected at the end of the intervention on week 12.

Population: Analyses were conducted on all urine samples provided by study participants at week 12.

Urinary excretion of benzene mercapturic acid (S-PMA) in 12 hour overnight void at 12 weeks

Outcome measures

Outcome measures
Measure
Broccoli Sprout Extract Beverage
n=135 Participants
Broccoli Sprout Extract Beverage : Broccoli Sprout Extract Beverage: 600 micromole glucoraphanin and 40 micromole sulforaphane dissolved in 100 mL dilute pineapple and lime juice daily for 84 days.
Placebo Beverage
n=132 Participants
placebo beverage : 100 mL of dilute pineapple and lime juice daily for 84 days.
Effect of Treatment on Levels of Air Toxics Mercapturic Acids Over Intervention Period
1.700 pmol/mg creatinine
Interval 1.235 to 2.386
1.065 pmol/mg creatinine
Interval 0.686 to 1.826

SECONDARY outcome

Timeframe: Endpoints assessed on urine samples collected at the end of the intervention (day 84 [week 12])

Micromoles of urinary sulforaphane metabolites excreted over 24 hours after consuming the 84th dose.

Outcome measures

Outcome measures
Measure
Broccoli Sprout Extract Beverage
n=132 Participants
Broccoli Sprout Extract Beverage : Broccoli Sprout Extract Beverage: 600 micromole glucoraphanin and 40 micromole sulforaphane dissolved in 100 mL dilute pineapple and lime juice daily for 84 days.
Placebo Beverage
n=135 Participants
placebo beverage : 100 mL of dilute pineapple and lime juice daily for 84 days.
Levels of Sulforaphane and Its Metabolites at the End of Intervention Period (After 84 Daily Doses)
1 micromoles
Interval 1.0 to 1.0
62 micromoles
Interval 44.0 to 91.0

Adverse Events

Broccoli Sprout Extract Beverage

Serious events: 0 serious events
Other events: 6 other events
Deaths: 0 deaths

Placebo Beverage

Serious events: 0 serious events
Other events: 4 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Broccoli Sprout Extract Beverage
n=148 participants at risk
Broccoli Sprout Extract Beverage : Broccoli Sprout Extract Beverage: 600 micromole glucoraphanin and 40 micromole sulforaphane dissolved in 100 mL dilute pineapple and lime juice daily for 84 days.
Placebo Beverage
n=143 participants at risk
placebo beverage : 100 mL of dilute pineapple and lime juice daily for 84 days.
Gastrointestinal disorders
light vomiting
0.68%
1/148 • Number of events 1 • 3 months
0.00%
0/143 • 3 months
Gastrointestinal disorders
indigestion
2.7%
4/148 • Number of events 4 • 3 months
1.4%
2/143 • Number of events 2 • 3 months
Gastrointestinal disorders
taste
0.68%
1/148 • Number of events 1 • 3 months
1.4%
2/143 • Number of events 2 • 3 months

Additional Information

Thomas W. Kensler, PhD

Johns Hopkins Bloomberg School of Public Health

Phone: 410-955-1292

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place