Trial Outcomes & Findings for Phase 2B/3 Double-blinded Placebo-controlled (NCT NCT03107377)

NCT ID: NCT03107377

Last Updated: 2020-08-12

Results Overview

Proportion of subjects who experience urogenital CT infection during the study intervention period (incident infection of CT).

Recruitment status

COMPLETED

Study phase

PHASE2/PHASE3

Target enrollment

860 participants

Primary outcome timeframe

16 weeks

Results posted on

2020-08-12

Participant Flow

Participant milestones

Participant milestones
Measure
EVO100
A pH-buffering, acidity-maintaining gel (pH 3.5), containing three active compounds: lactic acid, citric acid, potassium bitartrate. 5 g intravaginally applied at least one hour prior to vaginal intercourse. EVO100: 5 g dose applied up to 1 hour prior to coitus
Placebo
An isotonic, non-buffering gel, pH adjusted to 4.5, containing 2.7% hydroxyethylcellulose, sorbic acid, sodium hydroxide, sodium chloride and purified water. 5 g intravaginally applied at least one hour prior to vaginal intercourse. Placebo: 5 g dose applied up to 1 hour prior to coitus
Overall Study
STARTED
426
434
Overall Study
COMPLETED
335
335
Overall Study
NOT COMPLETED
91
99

Reasons for withdrawal

Reasons for withdrawal
Measure
EVO100
A pH-buffering, acidity-maintaining gel (pH 3.5), containing three active compounds: lactic acid, citric acid, potassium bitartrate. 5 g intravaginally applied at least one hour prior to vaginal intercourse. EVO100: 5 g dose applied up to 1 hour prior to coitus
Placebo
An isotonic, non-buffering gel, pH adjusted to 4.5, containing 2.7% hydroxyethylcellulose, sorbic acid, sodium hydroxide, sodium chloride and purified water. 5 g intravaginally applied at least one hour prior to vaginal intercourse. Placebo: 5 g dose applied up to 1 hour prior to coitus
Overall Study
Adverse Event
3
3
Overall Study
Protocol Violation
9
12
Overall Study
Physician Decision
3
6
Overall Study
Pregnancy
7
7
Overall Study
Withdrawal by Subject
16
22
Overall Study
Lost to Follow-up
37
34
Overall Study
Other reason not specified
16
15

Baseline Characteristics

Phase 2B/3 Double-blinded Placebo-controlled

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
EVO100
n=426 Participants
A pH-buffering, acidity-maintaining gel (pH 3.5), containing three active compounds: lactic acid, citric acid, potassium bitartrate. 5 g intravaginally applied at least one hour prior to vaginal intercourse. EVO100l: 5 g dose applied up to 1 hour prior to coitus
Placebo
n=434 Participants
An isotonic, non-buffering gel, pH adjusted to 4.5, containing 2.7% hydroxyethylcellulose, sorbic acid, sodium hydroxide, sodium chloride and purified water. 5 g intravaginally applied at least one hour prior to vaginal intercourse. Placebo: 5 g dose applied up to 1 hour prior to coitus
Total
n=860 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Age, Categorical
Between 18 and 65 years
426 Participants
n=99 Participants
434 Participants
n=107 Participants
860 Participants
n=206 Participants
Age, Categorical
>=65 years
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Age, Continuous
27.82 years
STANDARD_DEVIATION 7.112 • n=99 Participants
27.53 years
STANDARD_DEVIATION 6.722 • n=107 Participants
27.68 years
STANDARD_DEVIATION 6.916 • n=206 Participants
Sex: Female, Male
Female
426 Participants
n=99 Participants
434 Participants
n=107 Participants
860 Participants
n=206 Participants
Sex: Female, Male
Male
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
135 Participants
n=99 Participants
148 Participants
n=107 Participants
283 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
291 Participants
n=99 Participants
286 Participants
n=107 Participants
577 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
American Indian or Alaska Native
3 Participants
n=99 Participants
2 Participants
n=107 Participants
5 Participants
n=206 Participants
Race (NIH/OMB)
Asian
5 Participants
n=99 Participants
9 Participants
n=107 Participants
14 Participants
n=206 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
2 Participants
n=107 Participants
2 Participants
n=206 Participants
Race (NIH/OMB)
Black or African American
185 Participants
n=99 Participants
173 Participants
n=107 Participants
358 Participants
n=206 Participants
Race (NIH/OMB)
White
228 Participants
n=99 Participants
239 Participants
n=107 Participants
467 Participants
n=206 Participants
Race (NIH/OMB)
More than one race
5 Participants
n=99 Participants
9 Participants
n=107 Participants
14 Participants
n=206 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Region of Enrollment
United States
426 participants
n=99 Participants
434 participants
n=107 Participants
860 participants
n=206 Participants

PRIMARY outcome

Timeframe: 16 weeks

Population: mITT Population - All CT Analysis Eligible Subjects

Proportion of subjects who experience urogenital CT infection during the study intervention period (incident infection of CT).

Outcome measures

Outcome measures
Measure
EVO100
n=289 Participants
A pH-buffering, acidity-maintaining gel (pH 3.5), containing three active compounds: lactic acid, citric acid, potassium bitartrate. 5 g intravaginally applied at least one hour prior to vaginal intercourse. EVO100: 5 g dose applied up to 1 hour prior to coitus
Placebo
n=290 Participants
An isotonic, non-buffering gel, pH adjusted to 4.5, containing 2.7% hydroxyethylcellulose, sorbic acid, sodium hydroxide, sodium chloride and purified water. 5 g intravaginally applied at least one hour prior to vaginal intercourse. Placebo: 5 g dose applied up to 1 hour prior to coitus
Urogenital CT Infection
14 Participants
28 Participants

SECONDARY outcome

Timeframe: 16 weeks

Population: mITT Population - All GC Analysis Eligible Subjects

Proportion of subjects who experience urogenital GC infection during the study intervention period (incident infection of GC).

Outcome measures

Outcome measures
Measure
EVO100
n=280 Participants
A pH-buffering, acidity-maintaining gel (pH 3.5), containing three active compounds: lactic acid, citric acid, potassium bitartrate. 5 g intravaginally applied at least one hour prior to vaginal intercourse. EVO100: 5 g dose applied up to 1 hour prior to coitus
Placebo
n=277 Participants
An isotonic, non-buffering gel, pH adjusted to 4.5, containing 2.7% hydroxyethylcellulose, sorbic acid, sodium hydroxide, sodium chloride and purified water. 5 g intravaginally applied at least one hour prior to vaginal intercourse. Placebo: 5 g dose applied up to 1 hour prior to coitus
Urogenital GC Infection
2 Participants
9 Participants

OTHER_PRE_SPECIFIED outcome

Timeframe: 16 weeks

Population: mITT population

Summary of Coital Events during treatment

Outcome measures

Outcome measures
Measure
EVO100
n=364 Participants
A pH-buffering, acidity-maintaining gel (pH 3.5), containing three active compounds: lactic acid, citric acid, potassium bitartrate. 5 g intravaginally applied at least one hour prior to vaginal intercourse. EVO100: 5 g dose applied up to 1 hour prior to coitus
Placebo
n=383 Participants
An isotonic, non-buffering gel, pH adjusted to 4.5, containing 2.7% hydroxyethylcellulose, sorbic acid, sodium hydroxide, sodium chloride and purified water. 5 g intravaginally applied at least one hour prior to vaginal intercourse. Placebo: 5 g dose applied up to 1 hour prior to coitus
Compliance With EVO100 and Sensitivity Analyses (Part I)
15.7 Coital Events
Standard Deviation 14.38
16.3 Coital Events
Standard Deviation 15.79

OTHER_PRE_SPECIFIED outcome

Timeframe: 16 weeks

Population: Subject Satisfaction by Visit (mITT population)

The proportion of subjects who experienced at least one CT infection during the study Intervention Period was summarized by treatment group using the mITT population and subject adherence rates.

Outcome measures

Outcome measures
Measure
EVO100
n=273 Participants
A pH-buffering, acidity-maintaining gel (pH 3.5), containing three active compounds: lactic acid, citric acid, potassium bitartrate. 5 g intravaginally applied at least one hour prior to vaginal intercourse. EVO100: 5 g dose applied up to 1 hour prior to coitus
Placebo
n=267 Participants
An isotonic, non-buffering gel, pH adjusted to 4.5, containing 2.7% hydroxyethylcellulose, sorbic acid, sodium hydroxide, sodium chloride and purified water. 5 g intravaginally applied at least one hour prior to vaginal intercourse. Placebo: 5 g dose applied up to 1 hour prior to coitus
Subject Satisfaction With Product
Very satisfied
113 Participants
119 Participants
Subject Satisfaction With Product
Satisfied
128 Participants
121 Participants
Subject Satisfaction With Product
Somewhat Satisfied
26 Participants
24 Participants
Subject Satisfaction With Product
Somewhat dissatisfied
5 Participants
3 Participants
Subject Satisfaction With Product
Dissatisfied
1 Participants
0 Participants

OTHER_PRE_SPECIFIED outcome

Timeframe: 16 weeks

Population: Subjects sexual satisfaction by Visit - mITT population

The proportion of subjects who experienced at least one GC infection during the study Intervention Period was summarized by treatment group using the mITT population and subject adherence rates.

Outcome measures

Outcome measures
Measure
EVO100
n=273 Participants
A pH-buffering, acidity-maintaining gel (pH 3.5), containing three active compounds: lactic acid, citric acid, potassium bitartrate. 5 g intravaginally applied at least one hour prior to vaginal intercourse. EVO100: 5 g dose applied up to 1 hour prior to coitus
Placebo
n=267 Participants
An isotonic, non-buffering gel, pH adjusted to 4.5, containing 2.7% hydroxyethylcellulose, sorbic acid, sodium hydroxide, sodium chloride and purified water. 5 g intravaginally applied at least one hour prior to vaginal intercourse. Placebo: 5 g dose applied up to 1 hour prior to coitus
Sexual Satisfaction
My sex life is a lot better than before
65 Participants
53 Participants
Sexual Satisfaction
My sex life is a little better than before
75 Participants
73 Participants
Sexual Satisfaction
My sex life is no different than before
124 Participants
137 Participants
Sexual Satisfaction
My sex life is a little worse than before
8 Participants
4 Participants
Sexual Satisfaction
My sex life is a lot worse than before
1 Participants
0 Participants

OTHER_PRE_SPECIFIED outcome

Timeframe: 16 weeks

Population: mITT Population - All CT Analysis Eligible Subjects

The proportion of subjects who experienced at least one CT infection during the study Intervention Period was summarized by treatment group using the mITT population and subject adherence rates.

Outcome measures

Outcome measures
Measure
EVO100
n=287 Participants
A pH-buffering, acidity-maintaining gel (pH 3.5), containing three active compounds: lactic acid, citric acid, potassium bitartrate. 5 g intravaginally applied at least one hour prior to vaginal intercourse. EVO100: 5 g dose applied up to 1 hour prior to coitus
Placebo
n=290 Participants
An isotonic, non-buffering gel, pH adjusted to 4.5, containing 2.7% hydroxyethylcellulose, sorbic acid, sodium hydroxide, sodium chloride and purified water. 5 g intravaginally applied at least one hour prior to vaginal intercourse. Placebo: 5 g dose applied up to 1 hour prior to coitus
Compliance With EVO100 and Sensitivity Analyses
of subjects w/ CT infection & >=20% adherence
17 Participants
13 Participants
Compliance With EVO100 and Sensitivity Analyses
of subjects w/ CT infection & >=40% adherence
19 Participants
24 Participants
Compliance With EVO100 and Sensitivity Analyses
# of subjects w/ CT infection & 0% adherence
6 Participants
6 Participants
Compliance With EVO100 and Sensitivity Analyses
of subjects w/ CT infection & >0% <20% adherence
10 Participants
7 Participants
Compliance With EVO100 and Sensitivity Analyses
of subjects w/ CT infection & >=60% adhere
41 Participants
32 Participants
Compliance With EVO100 and Sensitivity Analyses
of subjects w/ CT infection & >=80% adhere
108 Participants
125 Participants
Compliance With EVO100 and Sensitivity Analyses
of subjects w/ CT infection & =100% adhere
86 Participants
83 Participants

OTHER_PRE_SPECIFIED outcome

Timeframe: 16 weeks

Population: mITT Population - All GC Analysis Eligible Subjects

The proportion of subjects who experienced at least one GC infection during the study Intervention Period was summarized by treatment group using the mITT population and subject adherence rates.

Outcome measures

Outcome measures
Measure
EVO100
n=279 Participants
A pH-buffering, acidity-maintaining gel (pH 3.5), containing three active compounds: lactic acid, citric acid, potassium bitartrate. 5 g intravaginally applied at least one hour prior to vaginal intercourse. EVO100: 5 g dose applied up to 1 hour prior to coitus
Placebo
n=277 Participants
An isotonic, non-buffering gel, pH adjusted to 4.5, containing 2.7% hydroxyethylcellulose, sorbic acid, sodium hydroxide, sodium chloride and purified water. 5 g intravaginally applied at least one hour prior to vaginal intercourse. Placebo: 5 g dose applied up to 1 hour prior to coitus
Compliance With EVO100 and Sensitivity Analyses
# of subjects w/ GC infection & >0% <20% adherence
9 Participants
7 Participants
Compliance With EVO100 and Sensitivity Analyses
# of subjects with GC infection & >=20% adherence
15 Participants
12 Participants
Compliance With EVO100 and Sensitivity Analyses
# of subjects with GC infection & >=40% adherence
17 Participants
23 Participants
Compliance With EVO100 and Sensitivity Analyses
# of subjects with GC infection & >=60% adh
40 Participants
36 Participants
Compliance With EVO100 and Sensitivity Analyses
# of subjects with GC infection & >=80% adherence
106 Participants
123 Participants
Compliance With EVO100 and Sensitivity Analyses
# of subjects with GC infection & =100% adherence
87 Participants
70 Participants
Compliance With EVO100 and Sensitivity Analyses
# of subjects with GC infection & 0% adherence
5 Participants
6 Participants

OTHER_PRE_SPECIFIED outcome

Timeframe: 16 weeks

Population: mITT population

Summary of number of applicators used via eDiary

Outcome measures

Outcome measures
Measure
EVO100
n=360 Participants
A pH-buffering, acidity-maintaining gel (pH 3.5), containing three active compounds: lactic acid, citric acid, potassium bitartrate. 5 g intravaginally applied at least one hour prior to vaginal intercourse. EVO100: 5 g dose applied up to 1 hour prior to coitus
Placebo
n=377 Participants
An isotonic, non-buffering gel, pH adjusted to 4.5, containing 2.7% hydroxyethylcellulose, sorbic acid, sodium hydroxide, sodium chloride and purified water. 5 g intravaginally applied at least one hour prior to vaginal intercourse. Placebo: 5 g dose applied up to 1 hour prior to coitus
Compliance With EVO100 and Sensitivity Analyses (Part II)
13.0 Number of Applicators
Standard Deviation 12.95
13.5 Number of Applicators
Standard Deviation 15.18

OTHER_PRE_SPECIFIED outcome

Timeframe: 16 weeks

Population: mITT population

Study product adherence

Outcome measures

Outcome measures
Measure
EVO100
n=360 Participants
A pH-buffering, acidity-maintaining gel (pH 3.5), containing three active compounds: lactic acid, citric acid, potassium bitartrate. 5 g intravaginally applied at least one hour prior to vaginal intercourse. EVO100: 5 g dose applied up to 1 hour prior to coitus
Placebo
n=377 Participants
An isotonic, non-buffering gel, pH adjusted to 4.5, containing 2.7% hydroxyethylcellulose, sorbic acid, sodium hydroxide, sodium chloride and purified water. 5 g intravaginally applied at least one hour prior to vaginal intercourse. Placebo: 5 g dose applied up to 1 hour prior to coitus
Compliance With EVO100 and Sensitivity Analyses (Part III)
78.9 % of sex acts where study product used
Standard Deviation 27.14
78.3 % of sex acts where study product used
Standard Deviation 27.78

Adverse Events

EVO100

Serious events: 2 serious events
Other events: 62 other events
Deaths: 0 deaths

Placebo

Serious events: 3 serious events
Other events: 46 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
EVO100
n=376 participants at risk
A pH-buffering, acidity-maintaining gel (pH 3.5), containing three active compounds: lactic acid, citric acid, potassium bitartrate. 5 g intravaginally applied at least one hour prior to vaginal intercourse. EVO100: 5 g dose applied up to 1 hour prior to coitus
Placebo
n=388 participants at risk
An isotonic, non-buffering gel, pH adjusted to 4.5, containing 2.7% hydroxyethylcellulose, sorbic acid, sodium hydroxide, sodium chloride and purified water. 5 g intravaginally applied at least one hour prior to vaginal intercourse. Placebo: 5 g dose applied up to 1 hour prior to coitus
Infections and infestations
Sepsis
0.27%
1/376 • Number of events 1 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
0.00%
0/388 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
Metabolism and nutrition disorders
Diabetic Ketoacidosis
0.27%
1/376 • Number of events 1 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
0.00%
0/388 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
Metabolism and nutrition disorders
Hyperglycaemia
0.00%
0/376 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
0.26%
1/388 • Number of events 1 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
Cardiac disorders
Acute Coronary Syndrome
0.00%
0/376 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
0.26%
1/388 • Number of events 1 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
Nervous system disorders
Trigeminal neuralgia
0.00%
0/376 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
0.26%
1/388 • Number of events 1 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.

Other adverse events

Other adverse events
Measure
EVO100
n=376 participants at risk
A pH-buffering, acidity-maintaining gel (pH 3.5), containing three active compounds: lactic acid, citric acid, potassium bitartrate. 5 g intravaginally applied at least one hour prior to vaginal intercourse. EVO100: 5 g dose applied up to 1 hour prior to coitus
Placebo
n=388 participants at risk
An isotonic, non-buffering gel, pH adjusted to 4.5, containing 2.7% hydroxyethylcellulose, sorbic acid, sodium hydroxide, sodium chloride and purified water. 5 g intravaginally applied at least one hour prior to vaginal intercourse. Placebo: 5 g dose applied up to 1 hour prior to coitus
Infections and infestations
Bacterial Vaginosis
2.9%
11/376 • Number of events 11 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
4.6%
18/388 • Number of events 18 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
Infections and infestations
Urinary tract infections
3.2%
12/376 • Number of events 12 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
2.6%
10/388 • Number of events 10 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
Infections and infestations
Vulvovaginal Candidiasis
5.1%
19/376 • Number of events 19 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
2.1%
8/388 • Number of events 8 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
Reproductive system and breast disorders
Vaginal Discharge
3.2%
12/376 • Number of events 12 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
2.6%
10/388 • Number of events 10 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
Reproductive system and breast disorders
Vulvovaginal discomfort
2.1%
8/376 • Number of events 8 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.
0.00%
0/388 • 20 weeks
For the 860 subjects randomized into the study, 764 had documented use of study product and were a part of the safety population/analyzed for safety purposes. Amongst these 764 subjects, no deaths were reported during the course of the study.

Additional Information

Chief Medical Officer

Evofem

Phone: 858-550-1900

Results disclosure agreements

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