Trial Outcomes & Findings for Laboratory Study of Cannabidiol on the Effects of Smoked Marijuana (NCT NCT01844687)

NCT ID: NCT01844687

Last Updated: 2019-12-09

Results Overview

Participants rated how much they felt having a "high" feeling from smoked marijuana using a visual analog scale 1-100 mm, 1 (Not at all) - 100 (extremely).

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

50 participants

Primary outcome timeframe

two hours before and after marijuana cigarette smoking

Results posted on

2019-12-09

Participant Flow

Participant milestones

Participant milestones
Measure
Single Group
Each subject in the study will be tested on eight days, each day receiving a different combination of active/inactive marijuana cigarette plus 0, 200, 400 or 800 mg of cannabidiol A subset of study completers will be given 800 mg of cannabidiol on one additional study visit to measure plasma concentrations of cannabidiol for up to 360 minutes after ingestion
Visit 1
STARTED
50
Visit 1
COMPLETED
42
Visit 1
NOT COMPLETED
8
Visit 2
STARTED
42
Visit 2
COMPLETED
40
Visit 2
NOT COMPLETED
2
Visit 3
STARTED
40
Visit 3
COMPLETED
35
Visit 3
NOT COMPLETED
5
Visit 4
STARTED
35
Visit 4
COMPLETED
31
Visit 4
NOT COMPLETED
4
Visit 5
STARTED
31
Visit 5
COMPLETED
31
Visit 5
NOT COMPLETED
0
Visit 6
STARTED
31
Visit 6
COMPLETED
31
Visit 6
NOT COMPLETED
0
Visit 7
STARTED
31
Visit 7
COMPLETED
31
Visit 7
NOT COMPLETED
0
Visit 8
STARTED
31
Visit 8
COMPLETED
31
Visit 8
NOT COMPLETED
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Single Group
Each subject in the study will be tested on eight days, each day receiving a different combination of active/inactive marijuana cigarette plus 0, 200, 400 or 800 mg of cannabidiol A subset of study completers will be given 800 mg of cannabidiol on one additional study visit to measure plasma concentrations of cannabidiol for up to 360 minutes after ingestion
Visit 1
Protocol Violation
3
Visit 1
Lost to Follow-up
5
Visit 2
Withdrawal by Subject
1
Visit 2
Protocol Violation
1
Visit 3
Lost to Follow-up
1
Visit 3
Withdrawal by Subject
3
Visit 3
child care problems
1
Visit 4
Pregnancy
1
Visit 4
Lost to Follow-up
1
Visit 4
Withdrawal by Subject
2

Baseline Characteristics

Laboratory Study of Cannabidiol on the Effects of Smoked Marijuana

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Single Group
n=31 Participants
Each subject in the study will be tested on eight days, each day receiving a different combination of active/inactive marijuana cigarette plus 0, 200, 400 or 800 mg of cannabidiol A subset of study completers will be given 800 mg of cannabidiol on one additional study visit to measure plasma concentrations of cannabidiol for up to 360 minutes after ingestion
Age, Continuous
29.1 years
STANDARD_DEVIATION 9.1 • n=5 Participants
Sex: Female, Male
Female
14 Participants
n=5 Participants
Sex: Female, Male
Male
17 Participants
n=5 Participants
Race/Ethnicity, Customized
Black
15 participants
n=5 Participants
Race/Ethnicity, Customized
White
12 participants
n=5 Participants
Race/Ethnicity, Customized
mixed
4 participants
n=5 Participants
Region of Enrollment
United States
31 participants
n=5 Participants
cannabis use (number of days per week)
6.5 days per week
STANDARD_DEVIATION 1.0 • n=5 Participants
cannabis cigarettes per day
5.1 cannabis cigarettes used per day
STANDARD_DEVIATION 5.3 • n=5 Participants
tobacco cigarette smokers
18 participants
n=5 Participants
alcohol drinkers
14 participants
n=5 Participants

PRIMARY outcome

Timeframe: two hours before and after marijuana cigarette smoking

Population: all 31 completers

Participants rated how much they felt having a "high" feeling from smoked marijuana using a visual analog scale 1-100 mm, 1 (Not at all) - 100 (extremely).

Outcome measures

Outcome measures
Measure
Active Marijuana (MJ) With 0 mg Cannabidiol (CBD)
n=31 Participants
a placebo comparator measuring the effect of cannabidiol (CBD) on moods produced by smoking 5.30% tetrahydrocannabinol (THC) cannabis cigarettes
Active MJ With 200 mg CBD
n=31 Participants
MJ cigarette with 5.3% THC content pretreated with 200 mg CBD
Active MJ With 400 mg CBD
n=31 Participants
MJ cigarette with 5.3% THC content pretreated with 400 mg CBD
Active MJ With 800 mg CBD
n=31 Participants
MJ cigarette with 5.3% THC content pretreated with 800 mg CBD
Inactive MJ With 0 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 0 mg CBD
Inactive MJ With 200 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 200 mg CBD
Inactive MJ With 400 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 400 mg CBD
Inactive MJ With 800 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 800 mg CBD
Mood Scale - Subscale 'Feeling High'
60 mins after MJ
36.55 units on a scale VAS 1-100 mm
Standard Error 5.42
38.03 units on a scale VAS 1-100 mm
Standard Error 4.72
32.68 units on a scale VAS 1-100 mm
Standard Error 4.79
43.10 units on a scale VAS 1-100 mm
Standard Error 5.54
7.23 units on a scale VAS 1-100 mm
Standard Error 2.73
8.84 units on a scale VAS 1-100 mm
Standard Error 3.08
4.03 units on a scale VAS 1-100 mm
Standard Error 1.83
6.94 units on a scale VAS 1-100 mm
Standard Error 2.54
Mood Scale - Subscale 'Feeling High'
-120 mins
4.35 units on a scale VAS 1-100 mm
Standard Error 2.61
2.48 units on a scale VAS 1-100 mm
Standard Error 1.24
0.39 units on a scale VAS 1-100 mm
Standard Error 0.18
6.55 units on a scale VAS 1-100 mm
Standard Error 2.69
0.42 units on a scale VAS 1-100 mm
Standard Error 0.26
0.32 units on a scale VAS 1-100 mm
Standard Error 0.19
3.35 units on a scale VAS 1-100 mm
Standard Error 2.01
1.06 units on a scale VAS 1-100 mm
Standard Error 0.79
Mood Scale - Subscale 'Feeling High'
-30 mins
4.39 units on a scale VAS 1-100 mm
Standard Error 2.22
3.13 units on a scale VAS 1-100 mm
Standard Error 1.75
4.32 units on a scale VAS 1-100 mm
Standard Error 1.83
2.10 units on a scale VAS 1-100 mm
Standard Error 1.06
1.94 units on a scale VAS 1-100 mm
Standard Error 1.37
2.00 units on a scale VAS 1-100 mm
Standard Error 1.87
1.00 units on a scale VAS 1-100 mm
Standard Error 0.68
2.87 units on a scale VAS 1-100 mm
Standard Error 1.87
Mood Scale - Subscale 'Feeling High'
30 mins after MJ
46.65 units on a scale VAS 1-100 mm
Standard Error 5.69
45.90 units on a scale VAS 1-100 mm
Standard Error 5.11
43.32 units on a scale VAS 1-100 mm
Standard Error 5.22
36.65 units on a scale VAS 1-100 mm
Standard Error 5.37
10.52 units on a scale VAS 1-100 mm
Standard Error 2.88
17.84 units on a scale VAS 1-100 mm
Standard Error 4.24
6.23 units on a scale VAS 1-100 mm
Standard Error 1.56
13.94 units on a scale VAS 1-100 mm
Standard Error 3.87
Mood Scale - Subscale 'Feeling High'
90 mins after MJ
24.29 units on a scale VAS 1-100 mm
Standard Error 5.26
26.87 units on a scale VAS 1-100 mm
Standard Error 4.28
15.39 units on a scale VAS 1-100 mm
Standard Error 3.64
24.90 units on a scale VAS 1-100 mm
Standard Error 4.39
4.71 units on a scale VAS 1-100 mm
Standard Error 2.25
8.39 units on a scale VAS 1-100 mm
Standard Error 2.77
2.10 units on a scale VAS 1-100 mm
Standard Error 1.09
2.48 units on a scale VAS 1-100 mm
Standard Error 1.27
Mood Scale - Subscale 'Feeling High'
120 mins after MJ
17.19 units on a scale VAS 1-100 mm
Standard Error 4.60
17.13 units on a scale VAS 1-100 mm
Standard Error 3.64
11.65 units on a scale VAS 1-100 mm
Standard Error 3.04
16.84 units on a scale VAS 1-100 mm
Standard Error 3.89
2.35 units on a scale VAS 1-100 mm
Standard Error 1.47
4.48 units on a scale VAS 1-100 mm
Standard Error 1.82
0.68 units on a scale VAS 1-100 mm
Standard Error 0.33
4.26 units on a scale VAS 1-100 mm
Standard Error 2.35

OTHER_PRE_SPECIFIED outcome

Timeframe: 15 - 120 minutes after marijuana cigarette smoking

Population: all study completers

Participants rated how much they liked the effects of smoked marijuana using a visual analog scale 1-100 mm, 1=least, 100= most

Outcome measures

Outcome measures
Measure
Active Marijuana (MJ) With 0 mg Cannabidiol (CBD)
n=31 Participants
a placebo comparator measuring the effect of cannabidiol (CBD) on moods produced by smoking 5.30% tetrahydrocannabinol (THC) cannabis cigarettes
Active MJ With 200 mg CBD
n=31 Participants
MJ cigarette with 5.3% THC content pretreated with 200 mg CBD
Active MJ With 400 mg CBD
n=31 Participants
MJ cigarette with 5.3% THC content pretreated with 400 mg CBD
Active MJ With 800 mg CBD
n=31 Participants
MJ cigarette with 5.3% THC content pretreated with 800 mg CBD
Inactive MJ With 0 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 0 mg CBD
Inactive MJ With 200 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 200 mg CBD
Inactive MJ With 400 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 400 mg CBD
Inactive MJ With 800 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 800 mg CBD
Marijuana Rating Form - Like
15 minutes after smoking
55.32 units on a scale
Standard Error 5.51
65.87 units on a scale
Standard Error 5.17
61.42 units on a scale
Standard Error 4.92
61.94 units on a scale
Standard Error 5.27
25.65 units on a scale
Standard Error 5.31
25.03 units on a scale
Standard Error 6.05
22.81 units on a scale
Standard Error 5.38
22.48 units on a scale
Standard Error 4.96
Marijuana Rating Form - Like
30 minutes after smoking
57.10 units on a scale
Standard Error 5.66
57.77 units on a scale
Standard Error 4.95
58.77 units on a scale
Standard Error 5.84
60.58 units on a scale
Standard Error 5.51
20.16 units on a scale
Standard Error 5.37
24.58 units on a scale
Standard Error 5.71
17.97 units on a scale
Standard Error 4.68
18.17 units on a scale
Standard Error 4.38
Marijuana Rating Form - Like
60 minutes after smoking
52.55 units on a scale
Standard Error 6.78
57.90 units on a scale
Standard Error 4.92
53.03 units on a scale
Standard Error 6.08
53.26 units on a scale
Standard Error 6.07
14.37 units on a scale
Standard Error 4.91
21.32 units on a scale
Standard Error 5.65
16.03 units on a scale
Standard Error 5.21
23.52 units on a scale
Standard Error 5.66
Marijuana Rating Form - Like
90 minutes after smoking
49.58 units on a scale
Standard Error 6.53
51.68 units on a scale
Standard Error 5.45
47.84 units on a scale
Standard Error 6.50
50.13 units on a scale
Standard Error 5.93
15.97 units on a scale
Standard Error 5.12
18.52 units on a scale
Standard Error 5.57
15.06 units on a scale
Standard Error 4.70
17.42 units on a scale
Standard Error 5.41
Marijuana Rating Form - Like
120 minutes after smoking
41.29 units on a scale
Standard Error 6.61
46.00 units on a scale
Standard Error 5.77
42.55 units on a scale
Standard Error 6.62
46.81 units on a scale
Standard Error 6.38
14.84 units on a scale
Standard Error 4.86
16.81 units on a scale
Standard Error 5.21
14.00 units on a scale
Standard Error 5.42
16.48 units on a scale
Standard Error 5.37

OTHER_PRE_SPECIFIED outcome

Timeframe: 15 - 120 minutes after marijuana cigarette smoking

Population: all study completers

Participants rated the strength effects of smoked marijuana using a visual analog scale 1-100 mm, 1=least, 100= most

Outcome measures

Outcome measures
Measure
Active Marijuana (MJ) With 0 mg Cannabidiol (CBD)
n=31 Participants
a placebo comparator measuring the effect of cannabidiol (CBD) on moods produced by smoking 5.30% tetrahydrocannabinol (THC) cannabis cigarettes
Active MJ With 200 mg CBD
n=31 Participants
MJ cigarette with 5.3% THC content pretreated with 200 mg CBD
Active MJ With 400 mg CBD
n=31 Participants
MJ cigarette with 5.3% THC content pretreated with 400 mg CBD
Active MJ With 800 mg CBD
n=31 Participants
MJ cigarette with 5.3% THC content pretreated with 800 mg CBD
Inactive MJ With 0 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 0 mg CBD
Inactive MJ With 200 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 200 mg CBD
Inactive MJ With 400 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 400 mg CBD
Inactive MJ With 800 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 800 mg CBD
Marijuana Rating Form - Strength
60 minutes after smoking
45.84 units on a scale
Standard Error 5.77
44.68 units on a scale
Standard Error 4.61
39.71 units on a scale
Standard Error 5.56
45.42 units on a scale
Standard Error 5.18
9.03 units on a scale
Standard Error 3.00
13.06 units on a scale
Standard Error 3.80
6.39 units on a scale
Standard Error 2.58
11.65 units on a scale
Standard Error 3.50
Marijuana Rating Form - Strength
15 minutes after smoking
45.68 units on a scale
Standard Error 6.19
58.03 units on a scale
Standard Error 4.87
51.48 units on a scale
Standard Error 5.01
51.87 units on a scale
Standard Error 4.99
20.32 units on a scale
Standard Error 4.40
20.83 units on a scale
Standard Error 4.87
18.52 units on a scale
Standard Error 4.52
16.87 units on a scale
Standard Error 3.47
Marijuana Rating Form - Strength
30 minutes after smoking
55.65 units on a scale
Standard Error 5.30
55.03 units on a scale
Standard Error 4.39
48.67 units on a scale
Standard Error 5.47
57.61 units on a scale
Standard Error 4.75
14.42 units on a scale
Standard Error 3.90
18.94 units on a scale
Standard Error 3.91
11.77 units on a scale
Standard Error 2.80
14.83 units on a scale
Standard Error 3.50
Marijuana Rating Form - Strength
90 minutes after smoking
27.19 units on a scale
Standard Error 4.92
34.97 units on a scale
Standard Error 5.05
28.45 units on a scale
Standard Error 5.64
32.52 units on a scale
Standard Error 6.11
7.03 units on a scale
Standard Error 2.51
11.19 units on a scale
Standard Error 3.68
6.48 units on a scale
Standard Error 2.81
7.94 units on a scale
Standard Error 3.19
Marijuana Rating Form - Strength
120 minutes after smoking
18.68 units on a scale
Standard Error 4.39
22.87 units on a scale
Standard Error 4.80
19.42 units on a scale
Standard Error 4.52
28.45 units on a scale
Standard Error 5.81
7.55 units on a scale
Standard Error 3.29
8.35 units on a scale
Standard Error 2.89
4.65 units on a scale
Standard Error 2.59
7.19 units on a scale
Standard Error 3.14

OTHER_PRE_SPECIFIED outcome

Timeframe: 150 to 250 minutes after first marijuana cigarette was smoked earlier in the day

Population: all study completers

Participants were allowed to choose to take or reject additional puffs of the same type of MJ cigarette they smoked earlier in the day. Counts of participants choosing to take additional puffs are reported.

Outcome measures

Outcome measures
Measure
Active Marijuana (MJ) With 0 mg Cannabidiol (CBD)
n=31 Participants
a placebo comparator measuring the effect of cannabidiol (CBD) on moods produced by smoking 5.30% tetrahydrocannabinol (THC) cannabis cigarettes
Active MJ With 200 mg CBD
n=31 Participants
MJ cigarette with 5.3% THC content pretreated with 200 mg CBD
Active MJ With 400 mg CBD
n=31 Participants
MJ cigarette with 5.3% THC content pretreated with 400 mg CBD
Active MJ With 800 mg CBD
n=31 Participants
MJ cigarette with 5.3% THC content pretreated with 800 mg CBD
Inactive MJ With 0 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 0 mg CBD
Inactive MJ With 200 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 200 mg CBD
Inactive MJ With 400 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 400 mg CBD
Inactive MJ With 800 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 800 mg CBD
Optional Additional Puffs of MJ Cigarette
19 Participants
19 Participants
18 Participants
18 Participants
10 Participants
11 Participants
11 Participants
10 Participants

OTHER_PRE_SPECIFIED outcome

Timeframe: 150 to 160 minutes after first marijuana cigarette was smoked earlier in the day

Population: Those who took additional puffs of MJ cigarette.

Mean number of puffs taken by those participants who chose to take additional puffs.

Outcome measures

Outcome measures
Measure
Active Marijuana (MJ) With 0 mg Cannabidiol (CBD)
n=19 Participants
a placebo comparator measuring the effect of cannabidiol (CBD) on moods produced by smoking 5.30% tetrahydrocannabinol (THC) cannabis cigarettes
Active MJ With 200 mg CBD
n=19 Participants
MJ cigarette with 5.3% THC content pretreated with 200 mg CBD
Active MJ With 400 mg CBD
n=18 Participants
MJ cigarette with 5.3% THC content pretreated with 400 mg CBD
Active MJ With 800 mg CBD
n=18 Participants
MJ cigarette with 5.3% THC content pretreated with 800 mg CBD
Inactive MJ With 0 mg CBD
n=10 Participants
MJ cigarette with 0.01% THC content pretreated with 0 mg CBD
Inactive MJ With 200 mg CBD
n=11 Participants
MJ cigarette with 0.01% THC content pretreated with 200 mg CBD
Inactive MJ With 400 mg CBD
n=11 Participants
MJ cigarette with 0.01% THC content pretreated with 400 mg CBD
Inactive MJ With 800 mg CBD
n=10 Participants
MJ cigarette with 0.01% THC content pretreated with 800 mg CBD
Number of Optional Puffs of MJ Cigarette Taken
1.68 number of puffs taken per participant
Standard Error 0.26
1.71 number of puffs taken per participant
Standard Error 0.25
1.58 number of puffs taken per participant
Standard Error 0.26
1.55 number of puffs taken per participant
Standard Error 0.26
0.94 number of puffs taken per participant
Standard Error 0.25
1.00 number of puffs taken per participant
Standard Error 0.25
1.00 number of puffs taken per participant
Standard Error 0.25
0.97 number of puffs taken per participant
Standard Error 0.25

OTHER_PRE_SPECIFIED outcome

Timeframe: 120 minutes before and 150 minutes after marijuana cigarette smoking

Population: all study completers

Heart rate measured at 10 time points, 4 before and 6 after smoking cannabis.

Outcome measures

Outcome measures
Measure
Active Marijuana (MJ) With 0 mg Cannabidiol (CBD)
n=31 Participants
a placebo comparator measuring the effect of cannabidiol (CBD) on moods produced by smoking 5.30% tetrahydrocannabinol (THC) cannabis cigarettes
Active MJ With 200 mg CBD
n=31 Participants
MJ cigarette with 5.3% THC content pretreated with 200 mg CBD
Active MJ With 400 mg CBD
n=31 Participants
MJ cigarette with 5.3% THC content pretreated with 400 mg CBD
Active MJ With 800 mg CBD
n=31 Participants
MJ cigarette with 5.3% THC content pretreated with 800 mg CBD
Inactive MJ With 0 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 0 mg CBD
Inactive MJ With 200 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 200 mg CBD
Inactive MJ With 400 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 400 mg CBD
Inactive MJ With 800 mg CBD
n=31 Participants
MJ cigarette with 0.01% THC content pretreated with 800 mg CBD
Heart Rate
30 minutes before smoking
65.77 beats per minute
Standard Error 1.92
66.84 beats per minute
Standard Error 2.37
65.42 beats per minute
Standard Error 1.75
66.35 beats per minute
Standard Error 1.72
64.90 beats per minute
Standard Error 1.62
67.42 beats per minute
Standard Error 1.78
67.55 beats per minute
Standard Error 1.77
66.74 beats per minute
Standard Error 2.22
Heart Rate
120 minutes after smoking
69.77 beats per minute
Standard Error 2.22
73.03 beats per minute
Standard Error 2.30
72.90 beats per minute
Standard Error 2.36
70.29 beats per minute
Standard Error 2.06
67.35 beats per minute
Standard Error 1.90
69.68 beats per minute
Standard Error 2.26
67.35 beats per minute
Standard Error 2.24
68.87 beats per minute
Standard Error 2.14
Heart Rate
120 minutes before smoking
66.45 beats per minute
Standard Error 2.42
69.58 beats per minute
Standard Error 2.39
69.90 beats per minute
Standard Error 2.31
66.23 beats per minute
Standard Error 2.04
65.13 beats per minute
Standard Error 2.09
67.65 beats per minute
Standard Error 1.99
65.68 beats per minute
Standard Error 2.15
67.84 beats per minute
Standard Error 2.19
Heart Rate
60 minutes before smoking
68.06 beats per minute
Standard Error 2.04
68.23 beats per minute
Standard Error 2.22
67.87 beats per minute
Standard Error 2.02
67.06 beats per minute
Standard Error 2.10
64.97 beats per minute
Standard Error 1.78
68.32 beats per minute
Standard Error 1.70
65.55 beats per minute
Standard Error 1.98
66.06 beats per minute
Standard Error 2.09
Heart Rate
5 minutes before smoking
60.94 beats per minute
Standard Error 1.79
64.48 beats per minute
Standard Error 1.97
64.55 beats per minute
Standard Error 1.82
65.06 beats per minute
Standard Error 2.12
62.55 beats per minute
Standard Error 1.67
65.58 beats per minute
Standard Error 1.74
63.10 beats per minute
Standard Error 1.80
65.00 beats per minute
Standard Error 1.98
Heart Rate
15 minutes after smoking
78.97 beats per minute
Standard Error 2.62
79.23 beats per minute
Standard Error 2.44
80.74 beats per minute
Standard Error 2.89
78.68 beats per minute
Standard Error 2.79
63.81 beats per minute
Standard Error 2.03
64.16 beats per minute
Standard Error 1.87
63.97 beats per minute
Standard Error 2.05
64.55 beats per minute
Standard Error 1.79
Heart Rate
30 minutes after smoking
71.87 beats per minute
Standard Error 2.42
75.45 beats per minute
Standard Error 2.36
73.03 beats per minute
Standard Error 2.38
75.90 beats per minute
Standard Error 2.89
61.35 beats per minute
Standard Error 1.77
62.94 beats per minute
Standard Error 1.86
62.52 beats per minute
Standard Error 1.83
64.13 beats per minute
Standard Error 1.72
Heart Rate
60 minutes after smoking
64.03 beats per minute
Standard Error 1.96
68.42 beats per minute
Standard Error 2.60
67.94 beats per minute
Standard Error 2.15
68.48 beats per minute
Standard Error 2.24
60.03 beats per minute
Standard Error 1.72
62.03 beats per minute
Standard Error 1.77
61.29 beats per minute
Standard Error 1.65
63.06 beats per minute
Standard Error 1.89
Heart Rate
90 minutes after smoking
65.00 beats per minute
Standard Error 1.99
69.13 beats per minute
Standard Error 2.19
66.16 beats per minute
Standard Error 2.10
68.87 beats per minute
Standard Error 2.01
64.06 beats per minute
Standard Error 1.80
63.97 beats per minute
Standard Error 1.94
61.87 beats per minute
Standard Error 2.06
65.81 beats per minute
Standard Error 1.94
Heart Rate
150 minutes after smoking
67.45 beats per minute
Standard Error 1.96
71.39 beats per minute
Standard Error 2.18
71.03 beats per minute
Standard Error 2.16
68.68 beats per minute
Standard Error 1.81
66.58 beats per minute
Standard Error 1.69
67.71 beats per minute
Standard Error 1.87
66.50 beats per minute
Standard Error 2.30
68.70 beats per minute
Standard Error 2.11

OTHER_PRE_SPECIFIED outcome

Timeframe: 6 hours

Population: 8 participants volunteered to come to a ninth session for dosing with 800 mg CBD and donation of 7 blood samples.

Plasma concentrations of cannabidiol were measured at six time points after oral administration of four 200 mg capsules of CBD.

Outcome measures

Outcome measures
Measure
Active Marijuana (MJ) With 0 mg Cannabidiol (CBD)
n=8 Participants
a placebo comparator measuring the effect of cannabidiol (CBD) on moods produced by smoking 5.30% tetrahydrocannabinol (THC) cannabis cigarettes
Active MJ With 200 mg CBD
MJ cigarette with 5.3% THC content pretreated with 200 mg CBD
Active MJ With 400 mg CBD
MJ cigarette with 5.3% THC content pretreated with 400 mg CBD
Active MJ With 800 mg CBD
MJ cigarette with 5.3% THC content pretreated with 800 mg CBD
Inactive MJ With 0 mg CBD
MJ cigarette with 0.01% THC content pretreated with 0 mg CBD
Inactive MJ With 200 mg CBD
MJ cigarette with 0.01% THC content pretreated with 200 mg CBD
Inactive MJ With 400 mg CBD
MJ cigarette with 0.01% THC content pretreated with 400 mg CBD
Inactive MJ With 800 mg CBD
MJ cigarette with 0.01% THC content pretreated with 800 mg CBD
Plasma Concentration of CBD
baseline
0 ng/mL
Standard Error 0
Plasma Concentration of CBD
60 minutes after dosing
11.06 ng/mL
Standard Error 5.43
Plasma Concentration of CBD
120 minutes after dosing
38.88 ng/mL
Standard Error 11.84
Plasma Concentration of CBD
180 minutes after dosing
77.95 ng/mL
Standard Error 25.00
Plasma Concentration of CBD
240 minutes after dosing
77.90 ng/mL
Standard Error 32.72
Plasma Concentration of CBD
300 minutes after dosing
50.45 ng/mL
Standard Error 14.76
Plasma Concentration of CBD
360 minutes after dosing
64.04 ng/mL
Standard Error 23.01

Adverse Events

Active MJ With 0 mg CBD

Serious events: 0 serious events
Other events: 5 other events
Deaths: 0 deaths

Active MJ With 200 mg CBD

Serious events: 0 serious events
Other events: 8 other events
Deaths: 0 deaths

Active MJ With 400 mg CBD

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

Active MJ With 800 mg CBD

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Inactive MJ With 0 mg CBD

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Inactive MJ With 200 mg CBD

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Inactive MJ With 400 mg CBD

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Inactive MJ With 800 mg CBD

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

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Active MJ With 0 mg CBD
n=50 participants at risk
31 subjects were tested with 0 mg CBD and an active marijuana cigarette.
Active MJ With 200 mg CBD
n=50 participants at risk
31 subjects were tested with 200 mg CBD and an active marijuana cigarette.
Active MJ With 400 mg CBD
n=50 participants at risk
31 subjects were tested with 400 mg CBD and an active marijuana cigarette.
Active MJ With 800 mg CBD
n=50 participants at risk
31 subjects were tested with 800 mg CBD and an active MJ cigarette.
Inactive MJ With 0 mg CBD
n=50 participants at risk
31 subjects were tested with 0 mg CBD and an inactive MJ cigarette.
Inactive MJ With 200 mg CBD
n=50 participants at risk
31 subjects were tested with 0 mg CBD and an inactive MJ cigarette.
Inactive MJ With 400 mg CBD
n=50 participants at risk
31 subjects were tested with 400 mg CBD and an inactive marijuana cigarette.
Inactive MJ With 800 mg CBD
n=50 participants at risk
31 subjects were tested with 800 mg CBD and Inactive MJ cigarette. 8 of the 31 study completers were given 800 mg of cannabidiol on one additional study visit to measure plasma concentrations of cannabidiol for up to 360 minutes after ingestion. No MJ cigarette was smoked during this session. Adverse events reported during this session are included here.
Eye disorders
Blurred Vision
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
20.0%
1/5 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
Gastrointestinal disorders
Gastrointestinal Upset
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
4.0%
2/50 • Number of events 2 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
4.0%
2/50 • Number of events 2 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
6.0%
3/50 • Number of events 3 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
Nervous system disorders
headache
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
Psychiatric disorders
anxiety
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
6.0%
3/50 • Number of events 3 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
General disorders
fatigue
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
Infections and infestations
Cold Symptoms
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
Musculoskeletal and connective tissue disorders
Pain (foot/hand/tooth)
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
4.0%
2/50 • Number of events 2 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
Cardiac disorders
Increased heart rate
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
2.0%
1/50 • Number of events 1 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level
0.00%
0/50 • Adverse events reported within 72 hours of each cannabidiol administration
Cannabis strength was collapsed for each cannabidiol dose level

Additional Information

Margaret Haney, PhD., Professor

Columbia University Medical Center

Phone: (646) 774-6153

Results disclosure agreements

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