Trial Outcomes & Findings for Melatonin in Smoke-induced Vascular Injury (NCT NCT02591238)

NCT ID: NCT02591238

Last Updated: 2016-03-03

Results Overview

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

68 participants

Primary outcome timeframe

Three months

Results posted on

2016-03-03

Participant Flow

Time: Jun 10,2015 -Jun 24,2015. Address: factory clinic of Heilongjiang Airports Managements Group Co., Ltd and village clinic of Xinfa village Daoli district, Haerbin city, Heilongjiang province, China. Medical staff: 3 Registered medical practitioner and 4 registered nurse.

First in included 96 participants of both genders, 28 participants excluded (refused to randomly assigned n=9, not meeting inclusion criteria n=9, time improper n=8, unknown n=2). 5 participants withdraw during the trial (pregnant n=1, influenza n=1, personal circumstance n=2, unknown reason n=1).

Participant milestones

Participant milestones
Measure
IV Non-smoker + Placebo
non-smoker oral placebo non-smoker oral placebo: Participants oral placebo last 2 weeks.
III Non-smoker + Melatonin
non-smoker oral melatonin non-smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
II Smoker + Placebo
smoker oral placebo smoker oral placebo: Participants oral placebo last 2 weeks.
I Smoker + Melatonin
smoker oral melatonin smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
Overall Study
STARTED
16
17
17
18
Overall Study
COMPLETED
15
16
17
15
Overall Study
NOT COMPLETED
1
1
0
3

Reasons for withdrawal

Reasons for withdrawal
Measure
IV Non-smoker + Placebo
non-smoker oral placebo non-smoker oral placebo: Participants oral placebo last 2 weeks.
III Non-smoker + Melatonin
non-smoker oral melatonin non-smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
II Smoker + Placebo
smoker oral placebo smoker oral placebo: Participants oral placebo last 2 weeks.
I Smoker + Melatonin
smoker oral melatonin smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
Overall Study
Pregnancy
1
0
0
0
Overall Study
Withdrawal by Subject
0
0
0
1
Overall Study
influenza
0
0
0
1
Overall Study
personal circumstances
0
1
0
0

Baseline Characteristics

Melatonin in Smoke-induced Vascular Injury

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
IVnon-smoker + Placebo
n=15 Participants
non-smoker oral placebo non-smoker oral placebo: Participants oral placebo last 2 weeks.
IIInon-smoker + Melatonin
n=16 Participants
non-smoker oral melatonin non-smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
IIsmoker + Placebo
n=17 Participants
smoker oral placebo smoker oral placebo: Participants oral placebo last 2 weeks.
Ismoker + Melatonin
n=15 Participants
smoker oral melatonin smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
Total
n=63 Participants
Total of all reporting groups
Age, Continuous
35.5 years
STANDARD_DEVIATION 3.4 • n=39 Participants
34.6 years
STANDARD_DEVIATION 3.8 • n=41 Participants
31.7 years
STANDARD_DEVIATION 3.4 • n=35 Participants
31.7 years
STANDARD_DEVIATION 2.8 • n=31 Participants
33.37 years
STANDARD_DEVIATION 3.1 • n=146 Participants
Sex: Female, Male
Female
9 Participants
n=39 Participants
10 Participants
n=41 Participants
14 Participants
n=35 Participants
13 Participants
n=31 Participants
46 Participants
n=146 Participants
Sex: Female, Male
Male
6 Participants
n=39 Participants
6 Participants
n=41 Participants
3 Participants
n=35 Participants
2 Participants
n=31 Participants
17 Participants
n=146 Participants

PRIMARY outcome

Timeframe: Three months

Population: Bellow concentration data of Fbg was after treatment with oral melatonin 2 weeks.

Outcome measures

Outcome measures
Measure
IV Non-smoker + Placebo
n=15 Participants
non-smoker oral placebo non-smoker oral placebo: Participants oral placebo last 2 weeks.
III Non-smoker + Melatonin
n=16 Participants
non-smoker oral melatonin non-smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
II Smoker + Placebo
n=17 Participants
smoker oral placebo smoker oral placebo: Participants oral placebo last 2 weeks.
I Smoker + Melatonin
n=15 Participants
smoker oral melatonin smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
Smoke-induced Vascular Injury and Melatonin's Effect in This Process Assessed by the Concentration of Fbg.
2.76 g/L
Standard Deviation 0.34
2.38 g/L
Standard Deviation 0.43
2.89 g/L
Standard Deviation 0.58
2.49 g/L
Standard Deviation 0.54

PRIMARY outcome

Timeframe: Three months.

Population: Bellow concentration data of Glu was after treatment with oral melatonin 2 weeks.

Outcome measures

Outcome measures
Measure
IV Non-smoker + Placebo
n=15 Participants
non-smoker oral placebo non-smoker oral placebo: Participants oral placebo last 2 weeks.
III Non-smoker + Melatonin
n=16 Participants
non-smoker oral melatonin non-smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
II Smoker + Placebo
n=17 Participants
smoker oral placebo smoker oral placebo: Participants oral placebo last 2 weeks.
I Smoker + Melatonin
n=15 Participants
smoker oral melatonin smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
Smoke-induced Vascular Injury and Melatonin's Effect in This Process Assessed by the Concentration of Glu.
4.4 mmol/L
Standard Deviation 1.36
4.24 mmol/L
Standard Deviation 1.3
5.02 mmol/L
Standard Deviation 1.26
4.79 mmol/L
Standard Deviation 1.05

PRIMARY outcome

Timeframe: Three months.

Population: Below concentration data of FFA was after treatment with oral melatonin 2 weeks.

Outcome measures

Outcome measures
Measure
IV Non-smoker + Placebo
n=15 Participants
non-smoker oral placebo non-smoker oral placebo: Participants oral placebo last 2 weeks.
III Non-smoker + Melatonin
n=16 Participants
non-smoker oral melatonin non-smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
II Smoker + Placebo
n=17 Participants
smoker oral placebo smoker oral placebo: Participants oral placebo last 2 weeks.
I Smoker + Melatonin
n=15 Participants
smoker oral melatonin smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
Smoke-induced Vascular Injury and Melatonin's Effect in This Process Assessed by the Concentration of FFA.
389 umol/L
Standard Deviation 121
382 umol/L
Standard Deviation 49
499 umol/L
Standard Deviation 84
425 umol/L
Standard Deviation 64

PRIMARY outcome

Timeframe: Three months.

Population: Bellow concentration data of TC was after treatment with oral melatonin 2 weeks.

Outcome measures

Outcome measures
Measure
IV Non-smoker + Placebo
n=15 Participants
non-smoker oral placebo non-smoker oral placebo: Participants oral placebo last 2 weeks.
III Non-smoker + Melatonin
n=16 Participants
non-smoker oral melatonin non-smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
II Smoker + Placebo
n=17 Participants
smoker oral placebo smoker oral placebo: Participants oral placebo last 2 weeks.
I Smoker + Melatonin
n=15 Participants
smoker oral melatonin smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
Smoke-induced Vascular Injury and Melatonin's Effect in This Process Assessed by the Concentration of TC.
4.51 mmol/L
Standard Deviation 1.04
4.5 mmol/L
Standard Deviation 0.95
4.74 mmol/L
Standard Deviation 0.8
4.45 mmol/L
Standard Deviation 0.65

PRIMARY outcome

Timeframe: Three months.

Population: Bellow concentration data of TG was after treatment with oral melatonin 2 weeks.

Outcome measures

Outcome measures
Measure
IV Non-smoker + Placebo
n=15 Participants
non-smoker oral placebo non-smoker oral placebo: Participants oral placebo last 2 weeks.
III Non-smoker + Melatonin
n=16 Participants
non-smoker oral melatonin non-smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
II Smoker + Placebo
n=17 Participants
smoker oral placebo smoker oral placebo: Participants oral placebo last 2 weeks.
I Smoker + Melatonin
n=15 Participants
smoker oral melatonin smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
Smoke-induced Vascular Injury and Melatonin's Effect in This Process Assessed by the Concentration of TG.
1.21 mmol/L
Standard Deviation 0.55
1.23 mmol/L
Standard Deviation 0.6
1.42 mmol/L
Standard Deviation 0.74
1.41 mmol/L
Standard Deviation 0.51

PRIMARY outcome

Timeframe: Three months.

Population: Bellow concentration data of LDL-C was after treatment with oral melatonin 2 weeks.

Outcome measures

Outcome measures
Measure
IV Non-smoker + Placebo
n=15 Participants
non-smoker oral placebo non-smoker oral placebo: Participants oral placebo last 2 weeks.
III Non-smoker + Melatonin
n=16 Participants
non-smoker oral melatonin non-smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
II Smoker + Placebo
n=17 Participants
smoker oral placebo smoker oral placebo: Participants oral placebo last 2 weeks.
I Smoker + Melatonin
n=15 Participants
smoker oral melatonin smoker oral melatonin: Participants oral melatonin 3 mg/day last 2 weeks.
Smoke-induced Vascular Injury and Melatonin's Effect in This Process Assessed by the Concentration of LDL-C.
1.85 mmol/L
Standard Deviation 0.54
1.95 mmol/L
Standard Deviation 0.52
2.2 mmol/L
Standard Deviation 0.75
2.19 mmol/L
Standard Deviation 0.47

Adverse Events

Non-smoker + Placebo

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

Non-smoker + Melatonin

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

Smoker + Placebo

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

Smoker + Melatonin

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

Prof. Changwei Liu. Director of vascular surgery.

Peking Union Medical College Hospital.

Phone: +86 1069152509

Results disclosure agreements

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