Trial Outcomes & Findings for Green Tea and Tai Chi for Bone Health (NCT NCT00625391)

NCT ID: NCT00625391

Last Updated: 2014-08-18

Results Overview

Bone formation biomarker: bone-specific alkaline phosphatase (BAP) Bone resorption biomarker: tartrate-resistant acid phosphatase (TRAP)

Recruitment status

COMPLETED

Study phase

PHASE1/PHASE2

Target enrollment

171 participants

Primary outcome timeframe

24 weeks

Results posted on

2014-08-18

Participant Flow

Recruitment period: March 2008 - December 2008. Location: community setting

There was no any significant events arranged.

Participant milestones

Participant milestones
Measure
Placebo Group
Placebo group receiving 500 mg medicinal starch daily for 24 weeks.
Green Tea Polyphenols (GTP) Group
Green tea polyphenols (GTP) group receiving 500 mg of GTP per day for 24 weeks.
Placebo + Tai Chi Group
Placebo+Tai Chi group receiving both placebo treatment and Tai Chi training (60-minute group exercise, 3 times per week)for 24 weeks.
GTP + Tai Chi Group
GTP+Tai Chi group receiving both GTP and Tai Chi training for 24 weeks.
Overall Study
STARTED
44
47
42
38
Overall Study
COMPLETED
37
39
37
37
Overall Study
NOT COMPLETED
7
8
5
1

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Green Tea and Tai Chi for Bone Health

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Placebo
n=44 Participants
Placebo group receiving 500 mg medicinal starch daily for 24 weeks.
Green Tea Polyphenols (GTP)
n=47 Participants
Green tea polyphenols (GTP) group receiving 500 mg of GTP per day for 24 weeks.
Placebo+Tai Chi
n=42 Participants
Placebo+Tai Chi group receiving both placebo treatment and Tai Chi training (60-minute group exercise, 3 times per week)for 24 weeks.
GTP+Tai Chi
n=38 Participants
GTP+Tai Chi group receiving both GTP and Tai Chi training for 24 weeks.
Total
n=171 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
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Age, Categorical
Between 18 and 65 years
38 Participants
n=5 Participants
42 Participants
n=7 Participants
36 Participants
n=5 Participants
33 Participants
n=4 Participants
149 Participants
n=21 Participants
Age, Categorical
>=65 years
6 Participants
n=5 Participants
5 Participants
n=7 Participants
6 Participants
n=5 Participants
5 Participants
n=4 Participants
22 Participants
n=21 Participants
Age, Continuous
57.6 years
STANDARD_DEVIATION 7.5 • n=5 Participants
56.5 years
STANDARD_DEVIATION 5.5 • n=7 Participants
58.3 years
STANDARD_DEVIATION 7.7 • n=5 Participants
57.6 years
STANDARD_DEVIATION 6.7 • n=4 Participants
57.4 years
STANDARD_DEVIATION 6.9 • n=21 Participants
Sex: Female, Male
Female
44 Participants
n=5 Participants
47 Participants
n=7 Participants
42 Participants
n=5 Participants
38 Participants
n=4 Participants
171 Participants
n=21 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Region of Enrollment
United States
44 participants
n=5 Participants
47 participants
n=7 Participants
42 participants
n=5 Participants
38 participants
n=4 Participants
171 participants
n=21 Participants

PRIMARY outcome

Timeframe: 24 weeks

Population: Analyzed on those who completed the study. Percent change relative to the baseline for each group.

Bone formation biomarker: bone-specific alkaline phosphatase (BAP) Bone resorption biomarker: tartrate-resistant acid phosphatase (TRAP)

Outcome measures

Outcome measures
Measure
Placebo
n=37 Participants
Placebo group receiving 500 mg medicinal starch daily for 24 weeks. Green tea polyphenols (GTP) group receiving 500 mg of GTP per day for 24 weeks. placebo+Tai Chi group receiving both placebo treatment and Tai Chi training (60-minute group exercise, 3 times per week)for 24 weeks. GTP+Tai Chi group receiving both GTP and Tai Chi training for 24 weeks.
Green Tea Polyphenols
n=39 Participants
GTP group receiving 500 mg green tea polyphenols daily for 24 weeks
Placebo + Tai Chi
n=37 Participants
Placebo + Tai Chi: receiving 500 mg medicinal starch daily and group Tai Chi exercise (60 min/session, 3 sessions/week) for 24 weeks
Green Tea Polyphenol + Tai Chi
n=37 Participants
GTP + Tai Chi: receiving 500 mg green tea polyphenols daily and group Tai Chi exercise (60 min/session, 3 sessions/week) for 24 weeks.
Change From Baseline (100%) in Ratio of Bone Formation Marker to Bone Resorption Marker
106.1 percentage change from baseline
Standard Deviation 3.7
103.6 percentage change from baseline
Standard Deviation 2.9
112.3 percentage change from baseline
Standard Deviation 3.0
113.0 percentage change from baseline
Standard Deviation 3.0

SECONDARY outcome

Timeframe: 24 weeks

Population: Analyzed who completed the study.

Oxidative stress damage biomarker: urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) test

Outcome measures

Outcome measures
Measure
Placebo
n=37 Participants
Placebo group receiving 500 mg medicinal starch daily for 24 weeks. Green tea polyphenols (GTP) group receiving 500 mg of GTP per day for 24 weeks. placebo+Tai Chi group receiving both placebo treatment and Tai Chi training (60-minute group exercise, 3 times per week)for 24 weeks. GTP+Tai Chi group receiving both GTP and Tai Chi training for 24 weeks.
Green Tea Polyphenols
n=39 Participants
GTP group receiving 500 mg green tea polyphenols daily for 24 weeks
Placebo + Tai Chi
n=37 Participants
Placebo + Tai Chi: receiving 500 mg medicinal starch daily and group Tai Chi exercise (60 min/session, 3 sessions/week) for 24 weeks
Green Tea Polyphenol + Tai Chi
n=37 Participants
GTP + Tai Chi: receiving 500 mg green tea polyphenols daily and group Tai Chi exercise (60 min/session, 3 sessions/week) for 24 weeks.
Oxidative Stress Damage Biomarker
73.5 ng/mg creatinine
Standard Deviation 50.9
33.5 ng/mg creatinine
Standard Deviation 33.1
29.7 ng/mg creatinine
Standard Deviation 21.9
20.6 ng/mg creatinine
Standard Deviation 19.8

Adverse Events

Placebo

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

Green Tea Polyphenols (GTP)

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

Placebo+Tai Chi (TC)

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

GTP+TC

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

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Dr. Chwan-Li Shen

Texas Tech University Health Sciences Center

Phone: (806) 743-2815

Results disclosure agreements

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