Trial Outcomes & Findings for A Trial to Compare Antibacterial vs. Placebo Mouthwash to Reduce the Incidence of Sexually Transmitted Infections (STIs) in Men Who Have Sex With Men (MSM) Taking HIV Pre-Exposure Prophylaxis (PrEP) (NCT NCT03881007)

NCT ID: NCT03881007

Last Updated: 2021-05-07

Results Overview

The sum of new diagnoses of Gonnorhea (Ng), Chlamydia (Ct) and syphilis in a 3 month period on LCM/placebo. Each participant can only contribute one diagnosis of Ct and one diagnosis of Ng per visit - regardless of number of sites infected. Thus each participant can contribute up to 3 diagnoses (Ct/Ng/syphilis) at each visit. The diagnosis of Ng and Ct will be made via molecular testing and syphilis via Rapid Plasma Reagin test (RPR) and Treponema Pallidum Antibodies tests (TPA) according to currently used European case definitions.

Recruitment status

TERMINATED

Study phase

NA

Target enrollment

343 participants

Primary outcome timeframe

3-month period following each intervention

Results posted on

2021-05-07

Participant Flow

Participant milestones

Participant milestones
Measure
LCM (Intervention), Then Placebo
Mouthwash with Listerine Cool Mint: Subjects will mouthwash daily with LCM and before/after sex for 3 months and after 3 months they will switch to the placebo.
Placebo, Then LCM (Intervention)
Mouthwash with placebo: Subjects will mouthwash daily with placebo and before/after sex during 3 months and after 3 months they will switch to the LCM mouthwash.
First 3 Months
STARTED
172
171
First 3 Months
COMPLETED
121
119
First 3 Months
NOT COMPLETED
51
52
Last 3 Months
STARTED
121
119
Last 3 Months
COMPLETED
77
74
Last 3 Months
NOT COMPLETED
44
45

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
LCM (Intervention), Then Placebo
n=172 Participants
Mouthwash with Listerine Cool Mint: Subjects will mouthwash daily with LCM and before/after sex for 3 months and then switch to placebo mouthwash for 3 months.
Placebo, Then LCM
n=171 Participants
Mouthwash with placebo: Subjects will mouthwash daily with placebo and before/after sex for 3 months and then switch to LCM mouthwash for 3 months.
Total
n=343 Participants
Total of all reporting groups
Age, Continuous
39 years
n=172 Participants
40 years
n=171 Participants
40 years
n=343 Participants
Sex: Female, Male
Female
0 Participants
n=172 Participants
0 Participants
n=171 Participants
0 Participants
n=343 Participants
Sex: Female, Male
Male
172 Participants
n=172 Participants
171 Participants
n=171 Participants
343 Participants
n=343 Participants
Race and Ethnicity Not Collected
0 Participants
Race and Ethnicity were not collected from any participant.
Sexually Transmitted Infection (STI) history (last 24 months)
Any STI
172 Participants
n=172 Participants
171 Participants
n=171 Participants
343 Participants
n=343 Participants
Sexually Transmitted Infection (STI) history (last 24 months)
Chlamydia
89 Participants
n=172 Participants
82 Participants
n=171 Participants
171 Participants
n=343 Participants
Sexually Transmitted Infection (STI) history (last 24 months)
Gonorrhea
100 Participants
n=172 Participants
117 Participants
n=171 Participants
217 Participants
n=343 Participants
Sexually Transmitted Infection (STI) history (last 24 months)
Syphilis
75 Participants
n=172 Participants
66 Participants
n=171 Participants
141 Participants
n=343 Participants
Sexually Transmitted Infection (STI) history (last 24 months)
Other
15 Participants
n=172 Participants
21 Participants
n=171 Participants
36 Participants
n=343 Participants
Antibiotics use (last 6 months)
Any antibiotics
140 Participants
n=172 Participants
136 Participants
n=171 Participants
276 Participants
n=343 Participants
Antibiotics use (last 6 months)
Macrolides
71 Participants
n=172 Participants
86 Participants
n=171 Participants
157 Participants
n=343 Participants
Antibiotics use (last 6 months)
Beta-lactam
111 Participants
n=172 Participants
121 Participants
n=171 Participants
232 Participants
n=343 Participants
Antibiotics use (last 6 months)
Fluoroquinolones
4 Participants
n=172 Participants
3 Participants
n=171 Participants
7 Participants
n=343 Participants
Antibiotics use (last 6 months)
Tetracyclines
47 Participants
n=172 Participants
30 Participants
n=171 Participants
77 Participants
n=343 Participants
Antibiotics use (last 6 months)
Other
0 Participants
n=172 Participants
2 Participants
n=171 Participants
2 Participants
n=343 Participants
Number of main partners (last 3 months)
1 Main partners
n=172 Participants
1 Main partners
n=171 Participants
1 Main partners
n=343 Participants
Number of casual partners (last 3 months)
10 casual partners
n=172 Participants
10 casual partners
n=171 Participants
10 casual partners
n=343 Participants
Condom use with casual partners
0-24%
50 Participants
n=172 Participants
62 Participants
n=171 Participants
112 Participants
n=343 Participants
Condom use with casual partners
25-49%
42 Participants
n=172 Participants
34 Participants
n=171 Participants
76 Participants
n=343 Participants
Condom use with casual partners
50-74%
31 Participants
n=172 Participants
26 Participants
n=171 Participants
57 Participants
n=343 Participants
Condom use with casual partners
75-100%
44 Participants
n=172 Participants
42 Participants
n=171 Participants
86 Participants
n=343 Participants

PRIMARY outcome

Timeframe: 3-month period following each intervention

Population: Intention-to-treat population. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).

The sum of new diagnoses of Gonnorhea (Ng), Chlamydia (Ct) and syphilis in a 3 month period on LCM/placebo. Each participant can only contribute one diagnosis of Ct and one diagnosis of Ng per visit - regardless of number of sites infected. Thus each participant can contribute up to 3 diagnoses (Ct/Ng/syphilis) at each visit. The diagnosis of Ng and Ct will be made via molecular testing and syphilis via Rapid Plasma Reagin test (RPR) and Treponema Pallidum Antibodies tests (TPA) according to currently used European case definitions.

Outcome measures

Outcome measures
Measure
LCM (Intervention)
n=195 Participants
Mouthwash with Listerine Cool Mint: Subjects will mouthwash daily with LCM and before/after sex
Placebo
n=196 Participants
Mouthwash with placebo: Subjects will mouthwash daily with placebo and before/after sex
Patient Counts of Ng Plus Ct Plus Syphilis in Each Study Arm for Each Period
First 3 months : Any STI
36 Participants
33 Participants
Patient Counts of Ng Plus Ct Plus Syphilis in Each Study Arm for Each Period
First 3 months : Chlamydia
19 Participants
18 Participants
Patient Counts of Ng Plus Ct Plus Syphilis in Each Study Arm for Each Period
First 3 months : Gonorrhea
19 Participants
17 Participants
Patient Counts of Ng Plus Ct Plus Syphilis in Each Study Arm for Each Period
First 3 months : Syphilis
2 Participants
6 Participants
Patient Counts of Ng Plus Ct Plus Syphilis in Each Study Arm for Each Period
Last 3 months : Any STI
27 Participants
21 Participants
Patient Counts of Ng Plus Ct Plus Syphilis in Each Study Arm for Each Period
Last 3 months : Chlamydia
11 Participants
10 Participants
Patient Counts of Ng Plus Ct Plus Syphilis in Each Study Arm for Each Period
Last 3 months : Gonorrhea
14 Participants
8 Participants
Patient Counts of Ng Plus Ct Plus Syphilis in Each Study Arm for Each Period
Last 3 months : Syphilis
4 Participants
4 Participants

SECONDARY outcome

Timeframe: 3-month period following each intervention

Population: Intention-to-treat population. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).

Incidence rate of new pharyngeal Ng cases in each allocation arm for each study period of 3 months.

Outcome measures

Outcome measures
Measure
LCM (Intervention)
n=195 Participants
Mouthwash with Listerine Cool Mint: Subjects will mouthwash daily with LCM and before/after sex
Placebo
n=196 Participants
Mouthwash with placebo: Subjects will mouthwash daily with placebo and before/after sex
Difference in Incidence Rate of Pharyngeal Ng Between Each Study Arm for Each Period
First 3 months
8 diagnoses
2 diagnoses
Difference in Incidence Rate of Pharyngeal Ng Between Each Study Arm for Each Period
Last 3 months
3 diagnoses
0 diagnoses

SECONDARY outcome

Timeframe: 3-month period following each intervention

Population: Intention-to-treat population. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).

Incidence rate of new Ct cases in each allocation arm (LCM and placebo) for each study period of 3 months.

Outcome measures

Outcome measures
Measure
LCM (Intervention)
n=195 Participants
Mouthwash with Listerine Cool Mint: Subjects will mouthwash daily with LCM and before/after sex
Placebo
n=196 Participants
Mouthwash with placebo: Subjects will mouthwash daily with placebo and before/after sex
Difference in Incidence Rate of Ct (Combined Pharyngeal, Urethral and Rectal) Between Each Study Arm for Each Period
First 3 months
19 diagnoses
18 diagnoses
Difference in Incidence Rate of Ct (Combined Pharyngeal, Urethral and Rectal) Between Each Study Arm for Each Period
Last 3 months
11 diagnoses
10 diagnoses

SECONDARY outcome

Timeframe: 3-month period following each intervention

Population: Intention-to-treat population. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).

Incidence rate of new syphilis cases in each allocation arm (LCM and placebo) for each study period of 3 months.

Outcome measures

Outcome measures
Measure
LCM (Intervention)
n=195 Participants
Mouthwash with Listerine Cool Mint: Subjects will mouthwash daily with LCM and before/after sex
Placebo
n=196 Participants
Mouthwash with placebo: Subjects will mouthwash daily with placebo and before/after sex
Difference in Incidence Rate of Syphilis Between Periods on LCM vs. Placebo
First 3 months
2 diagnoses
6 diagnoses
Difference in Incidence Rate of Syphilis Between Periods on LCM vs. Placebo
Last 3 months
4 diagnoses
4 diagnoses

SECONDARY outcome

Timeframe: 6-month period

Population: Intention-to-treat population.LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).

Daily: Proportion of days in study used mouthwash at least daily Post sex: Proportion of casual sexual contacts in study when mouthwash used post sex. Pre sex: proportion of casual sexual contacts in study when mouthwash used pre sex

Outcome measures

Outcome measures
Measure
LCM (Intervention)
n=195 Participants
Mouthwash with Listerine Cool Mint: Subjects will mouthwash daily with LCM and before/after sex
Placebo
n=196 Participants
Mouthwash with placebo: Subjects will mouthwash daily with placebo and before/after sex
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 3 daily use · 0-24%
11 Participants
14 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 3 daily use · 25-49%
8 Participants
9 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 3 daily use · 50-74%
17 Participants
14 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 3 daily use · 75-100%
80 Participants
79 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 3 daily use · Missing
5 Participants
3 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 6 daily use · 0-24%
6 Participants
6 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 6 daily use · 25-49%
4 Participants
5 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 6 daily use · 50-74%
9 Participants
11 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 6 daily use · 75-100%
15 Participants
9 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 6 daily use · Missing
40 Participants
46 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 3 pre-sex · 0-24%
30 Participants
36 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 3 pre-sex · 25-49%
15 Participants
18 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 3 pre-sex · 50-74%
20 Participants
19 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 3 pre-sex · 75-100%
49 Participants
41 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 3 pre-sex · Missing
7 Participants
5 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 6 pre-sex · 0-24%
19 Participants
13 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 6 pre-sex · 25-49%
13 Participants
15 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 6 pre-sex · 50-74%
13 Participants
18 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 6 pre-sex · 75-100%
25 Participants
24 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 6 pre-sex · Missing
4 Participants
7 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 3 post-sex · 0-24%
31 Participants
38 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 3 post-sex · 25-49%
16 Participants
16 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 3 post-sex · 50-74%
22 Participants
26 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 3 post-sex · 75-100%
45 Participants
34 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 3 post-sex · Missing
7 Participants
5 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 6 post-sex · 0-24%
22 Participants
14 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 6 post-sex · 25-49%
13 Participants
17 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 6 post-sex · 50-74%
14 Participants
18 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 6 post-sex · 75-100%
21 Participants
21 Participants
Proportion of Days That Mouthwash is Used on a Daily Basis and Proportion of Casual Sex Contacts When Mouthwash is Used Pre or Post Sex
Month 6 post-sex · Missing
4 Participants
7 Participants

SECONDARY outcome

Timeframe: 3-month period following each intervention

Population: Intention-to-treat population. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).

Incidence rate of Ng, Ct and syphilis between both groups (LCM and placebo) post controlling for adherence to mouthwash

Outcome measures

Outcome measures
Measure
LCM (Intervention)
n=195 Participants
Mouthwash with Listerine Cool Mint: Subjects will mouthwash daily with LCM and before/after sex
Placebo
n=196 Participants
Mouthwash with placebo: Subjects will mouthwash daily with placebo and before/after sex
Difference in Incidence Rate of Ng Plus Ct Plus Syphilis Between LCM and Placebo After Controlling for Adherence With Daily and Pre/Post Sex Mouthwash
Last 3 months: Any STI
27 Participants
21 Participants
Difference in Incidence Rate of Ng Plus Ct Plus Syphilis Between LCM and Placebo After Controlling for Adherence With Daily and Pre/Post Sex Mouthwash
Last 3 months: Chlamydia
11 Participants
10 Participants
Difference in Incidence Rate of Ng Plus Ct Plus Syphilis Between LCM and Placebo After Controlling for Adherence With Daily and Pre/Post Sex Mouthwash
Last 3 months: Gonorrhea
14 Participants
8 Participants
Difference in Incidence Rate of Ng Plus Ct Plus Syphilis Between LCM and Placebo After Controlling for Adherence With Daily and Pre/Post Sex Mouthwash
Last 3 months: Syphilis
4 Participants
4 Participants
Difference in Incidence Rate of Ng Plus Ct Plus Syphilis Between LCM and Placebo After Controlling for Adherence With Daily and Pre/Post Sex Mouthwash
First 3 months: Any STIs
36 Participants
33 Participants
Difference in Incidence Rate of Ng Plus Ct Plus Syphilis Between LCM and Placebo After Controlling for Adherence With Daily and Pre/Post Sex Mouthwash
First 3 months: Chlamydia
19 Participants
18 Participants
Difference in Incidence Rate of Ng Plus Ct Plus Syphilis Between LCM and Placebo After Controlling for Adherence With Daily and Pre/Post Sex Mouthwash
First 3 months: Gonorrhea
19 Participants
17 Participants
Difference in Incidence Rate of Ng Plus Ct Plus Syphilis Between LCM and Placebo After Controlling for Adherence With Daily and Pre/Post Sex Mouthwash
First 3 months: Syphilis
2 Participants
6 Participants

SECONDARY outcome

Timeframe: 3-month period following each intervention

Population: The overall number of participants analyzed is for both study periods. The number analyzed per row is the number of participants analyzed per period. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).

Cumulative number of antibiotics used between both groups (LCM and placebo) for each period

Outcome measures

Outcome measures
Measure
LCM (Intervention)
n=195 Participants
Mouthwash with Listerine Cool Mint: Subjects will mouthwash daily with LCM and before/after sex
Placebo
n=196 Participants
Mouthwash with placebo: Subjects will mouthwash daily with placebo and before/after sex
Difference in Cumulative Numbers of Antibiotics Used Between Periods on LCM vs. Placebo
Month 3
49 Participants
55 Participants
Difference in Cumulative Numbers of Antibiotics Used Between Periods on LCM vs. Placebo
Month 6
39 Participants
35 Participants

Adverse Events

LCM (Intervention)

Serious events: 1 serious events
Other events: 45 other events
Deaths: 0 deaths

Placebo

Serious events: 3 serious events
Other events: 30 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
LCM (Intervention)
n=195 participants at risk
Mouthwash with Listerine Cool Mint: Subjects will mouthwash daily with LCM and before/after sex. The total of participants at risk for the LCM intervention is 195 (121 in first 3 months and 77 in last 3 months).
Placebo
n=196 participants at risk
Mouthwash with placebo: Subjects will mouthwash daily with placebo and before/after sex. The total of participants at risk for the LCM intervention is 196 (119 in first 3 months and 74 in last 3 months).
Infections and infestations
Ludwig Angina
0.51%
1/195 • Number of events 1 • Adverse events and serious adverse events were collected over the whole study duration (6 months)
Adverse events are reported per intervention. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).
0.00%
0/196 • Adverse events and serious adverse events were collected over the whole study duration (6 months)
Adverse events are reported per intervention. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).
Psychiatric disorders
Suicidal depression
0.00%
0/195 • Adverse events and serious adverse events were collected over the whole study duration (6 months)
Adverse events are reported per intervention. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).
0.51%
1/196 • Number of events 1 • Adverse events and serious adverse events were collected over the whole study duration (6 months)
Adverse events are reported per intervention. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).
Reproductive system and breast disorders
Testis carcinoma
0.00%
0/195 • Adverse events and serious adverse events were collected over the whole study duration (6 months)
Adverse events are reported per intervention. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).
0.51%
1/196 • Number of events 1 • Adverse events and serious adverse events were collected over the whole study duration (6 months)
Adverse events are reported per intervention. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).
Infections and infestations
HIV
0.00%
0/195 • Adverse events and serious adverse events were collected over the whole study duration (6 months)
Adverse events are reported per intervention. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).
0.51%
1/196 • Number of events 1 • Adverse events and serious adverse events were collected over the whole study duration (6 months)
Adverse events are reported per intervention. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).

Other adverse events

Other adverse events
Measure
LCM (Intervention)
n=195 participants at risk
Mouthwash with Listerine Cool Mint: Subjects will mouthwash daily with LCM and before/after sex. The total of participants at risk for the LCM intervention is 195 (121 in first 3 months and 77 in last 3 months).
Placebo
n=196 participants at risk
Mouthwash with placebo: Subjects will mouthwash daily with placebo and before/after sex. The total of participants at risk for the LCM intervention is 196 (119 in first 3 months and 74 in last 3 months).
Gastrointestinal disorders
Dental caries
9.7%
19/195 • Number of events 19 • Adverse events and serious adverse events were collected over the whole study duration (6 months)
Adverse events are reported per intervention. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).
6.1%
12/196 • Number of events 12 • Adverse events and serious adverse events were collected over the whole study duration (6 months)
Adverse events are reported per intervention. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).
Gastrointestinal disorders
Tooth discoloration
13.3%
26/195 • Number of events 26 • Adverse events and serious adverse events were collected over the whole study duration (6 months)
Adverse events are reported per intervention. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).
9.2%
18/196 • Number of events 18 • Adverse events and serious adverse events were collected over the whole study duration (6 months)
Adverse events are reported per intervention. LCM (intervention) has a total of 195 participants (121 during the first 3 months and 74 during the last 3 months). The placebo arm had a total of 196 participants (119 during the first 3 months and 77 during the last 3 months).

Additional Information

Dr. Chris Kenyon

Institute of Tropical Medicine Antwerp

Phone: +32(0)32470786

Results disclosure agreements

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