Trial Outcomes & Findings for Safety and Effectiveness Study of Imiquimod Creams in the Treatment of External Genital Warts (NCT NCT00674739)

NCT ID: NCT00674739

Last Updated: 2011-05-24

Results Overview

Proportion of subjects with complete clearance of all warts (both presented at Baseline and newly emerged warts) at End of Study. Primary analysis performed on the Intent to Treat population with imputation (Last Observation Carried Forward)for missing data points.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

470 participants

Primary outcome timeframe

Up to 16 weeks

Results posted on

2011-05-24

Participant Flow

Recruitment period from June to December 2008 from 30 clinical study centers in the USA

Participant milestones

Participant milestones
Measure
2.5% Imiquimod Cream
2.5% imiquimod cream applied once daily to wart areas for up to 8 weeks
3.75% Imiquimod Cream
3.75% imiquimod cream applied once daily to wart areas for up to 8 weeks
Placebo
Placebo cream applied once daily to wart areas for up to 8 weeks
Overall Study
STARTED
178
195
97
Overall Study
COMPLETED
121
136
65
Overall Study
NOT COMPLETED
57
59
32

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Safety and Effectiveness Study of Imiquimod Creams in the Treatment of External Genital Warts

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
2.5% Imiquimod Cream
n=178 Participants
2.5% imiquimod cream applied once daily to wart areas for up to 8 weeks
3.75% Imiquimod Cream
n=195 Participants
3.75% imiquimod cream applied once daily to wart areas for up to 8 weeks
Placebo
n=97 Participants
Placebo cream applied once daily to wart areas for up to 8 weeks
Total
n=470 Participants
Total of all reporting groups
Age, Categorical
<=18 years
4 Participants
n=5 Participants
3 Participants
n=7 Participants
4 Participants
n=5 Participants
11 Participants
n=4 Participants
Age, Categorical
Between 18 and 65 years
173 Participants
n=5 Participants
189 Participants
n=7 Participants
91 Participants
n=5 Participants
453 Participants
n=4 Participants
Age, Categorical
>=65 years
1 Participants
n=5 Participants
3 Participants
n=7 Participants
2 Participants
n=5 Participants
6 Participants
n=4 Participants
Age Continuous
32.7 years
STANDARD_DEVIATION 11.3 • n=5 Participants
32.5 years
STANDARD_DEVIATION 11.6 • n=7 Participants
30.5 years
STANDARD_DEVIATION 10.6 • n=5 Participants
32.2 years
STANDARD_DEVIATION 11.3 • n=4 Participants
Sex: Female, Male
Female
95 Participants
n=5 Participants
100 Participants
n=7 Participants
50 Participants
n=5 Participants
245 Participants
n=4 Participants
Sex: Female, Male
Male
83 Participants
n=5 Participants
95 Participants
n=7 Participants
47 Participants
n=5 Participants
225 Participants
n=4 Participants
Region of Enrollment
United States
178 participants
n=5 Participants
195 participants
n=7 Participants
97 participants
n=5 Participants
470 participants
n=4 Participants

PRIMARY outcome

Timeframe: Up to 16 weeks

Population: Intention to treat

Proportion of subjects with complete clearance of all warts (both presented at Baseline and newly emerged warts) at End of Study. Primary analysis performed on the Intent to Treat population with imputation (Last Observation Carried Forward)for missing data points.

Outcome measures

Outcome measures
Measure
2.5% Imiquimod Cream
n=178 Participants
2.5% imiquimod cream applied once daily to wart areas for up to 8 weeks
3.75% Imiquimod Cream
n=195 Participants
3.75% imiquimod cream applied once daily to wart areas for up to 8 weeks
Placebo
n=97 Participants
Placebo cream applied once daily to wart areas for up to 8 weeks
Proportion of Subjects With Complete Clearance of All Warts (Both Presented at Baseline and Newly Emerged Warts) at End of Study
0.191 participants
Interval 0.136 to 0.257
0.272 participants
Interval 0.211 to 0.34
0.103 participants
Interval 0.051 to 0.181

SECONDARY outcome

Timeframe: Up to 16 weeks

Local skin reactions in the treatment and/or immediate surrounding area were clinically identified as: erythema, edema, weeping/exudate, flaking/scaling/dryness, and erosion/ulceration. LSRs were visually assessed by investigator at each visit. Rest period was a temporary interruption of dosing dur to intolerable LSRs.

Outcome measures

Outcome measures
Measure
2.5% Imiquimod Cream
n=178 Participants
2.5% imiquimod cream applied once daily to wart areas for up to 8 weeks
3.75% Imiquimod Cream
n=195 Participants
3.75% imiquimod cream applied once daily to wart areas for up to 8 weeks
Placebo
n=97 Participants
Placebo cream applied once daily to wart areas for up to 8 weeks
Safety Variables Include Adverse Reactions (AEs), Local Skin Reactions (LSRs), and Number of Subjects Who Took Rest Periods During the Treatment Period.
Adverse Reactions
27 participants
30 participants
2 participants
Safety Variables Include Adverse Reactions (AEs), Local Skin Reactions (LSRs), and Number of Subjects Who Took Rest Periods During the Treatment Period.
Local Skin Reactions
110 participants
144 participants
29 participants
Safety Variables Include Adverse Reactions (AEs), Local Skin Reactions (LSRs), and Number of Subjects Who Took Rest Periods During the Treatment Period.
Number of Subjects with Rest Period in Treatment
49 participants
59 participants
1 participants

SECONDARY outcome

Timeframe: Up to 16 weeks

Population: Patients with adverse events considered probably related or related to the administration of the product.

Numbers of subjects in each treatment group reporting one or more adverse events

Outcome measures

Outcome measures
Measure
2.5% Imiquimod Cream
n=178 Participants
2.5% imiquimod cream applied once daily to wart areas for up to 8 weeks
3.75% Imiquimod Cream
n=195 Participants
3.75% imiquimod cream applied once daily to wart areas for up to 8 weeks
Placebo
n=97 Participants
Placebo cream applied once daily to wart areas for up to 8 weeks
Treatment Related Adverse Events
27 Participants
30 Participants
2 Participants

Adverse Events

2.5% Imiquimod Cream

Serious events: 2 serious events
Other events: 17 other events
Deaths: 0 deaths

3.75% Imiquimod Cream

Serious events: 2 serious events
Other events: 23 other events
Deaths: 0 deaths

Placebo

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

Serious adverse events

Serious adverse events
Measure
2.5% Imiquimod Cream
n=178 participants at risk
2.5% imiquimod cream applied once daily to wart areas for up to 8 weeks
3.75% Imiquimod Cream
n=195 participants at risk
3.75% imiquimod cream applied once daily to wart areas for up to 8 weeks
Placebo
n=197 participants at risk;n=97 participants at risk
Placebo cream applied once daily to wart areas for up to 8 weeks
General disorders
Pelvic Mass
0.00%
0/178 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
0.51%
1/195 • Number of events 1 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
0.00%
0/97 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
Gastrointestinal disorders
Acute abdomen
0.00%
0/178 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
0.51%
1/195 • Number of events 1 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
0.00%
0/97 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
Hepatobiliary disorders
Cholelithiasis
0.00%
0/178 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
0.51%
1/195 • Number of events 1 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
0.00%
0/97 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
Blood and lymphatic system disorders
Iron deficiency anaemia
0.56%
1/178 • Number of events 1 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
0.00%
0/195 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
0.00%
0/97 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
Nervous system disorders
Migraine
0.56%
1/178 • Number of events 1 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
0.00%
0/195 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
0.00%
0/97 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
Nervous system disorders
Syncope
0.56%
1/178 • Number of events 1 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
0.00%
0/195 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
0.00%
0/97 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months

Other adverse events

Other adverse events
Measure
2.5% Imiquimod Cream
n=178 participants at risk
2.5% imiquimod cream applied once daily to wart areas for up to 8 weeks
3.75% Imiquimod Cream
n=195 participants at risk
3.75% imiquimod cream applied once daily to wart areas for up to 8 weeks
Placebo
n=197 participants at risk;n=97 participants at risk
Placebo cream applied once daily to wart areas for up to 8 weeks
Skin and subcutaneous tissue disorders
Application site pain
6.7%
12/178 • Number of events 12 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
5.6%
11/195 • Number of events 11 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
1.0%
1/97 • Number of events 1 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
Skin and subcutaneous tissue disorders
Application site irritation
2.8%
5/178 • Number of events 5 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
6.2%
12/195 • Number of events 12 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months
1.0%
1/97 • Number of events 1 • One year
The study duration included 5 month enrollment period, up to 28 week of study period, so total duration from first patient enrolled to the last patient completed study was approximately 12 months

Additional Information

Robert Babilon, Vice President, Product Development

Graceway Pharmaceuticals

Phone: 267-948-0400

Results disclosure agreements

  • Principal investigator is a sponsor employee For few PIs, there were a restrict that the PI can not publish their trial results with 12 months from the completion of the trial.
  • Publication restrictions are in place

Restriction type: OTHER