Trial Outcomes & Findings for Safety and Efficacy Study of Sofpironium Bromide in Subjects With Axillary Hyperhidrosis (BBI-4000-CL-301) (NCT NCT03836287)

NCT ID: NCT03836287

Last Updated: 2024-06-06

Results Overview

Change in score from baseline to end of treatment of 7 questions from the patient reported outcome assessment - Hyperhidrosis Disease Severity Measure-Axillary-7; each question had a 5-point response (range 0 \[better\] - 4 \[worse\]). Total scores were calculated by averaging the score of all items, resulting in an axillary hyperhidrosis symptom range of 0 (no sweating) to 4 (worst possible sweating). Improvement corresponded to a ≥2-point reduction of individual participant score from baseline to end of treatment (end of treatment \[6 weeks\] score minus baseline score). Treatment arms compared included vehicle and Sofpironium Bromide Gel, 15%. Counts of participants (per treatment arm) with and without an observed ≥2-point improvement in Hyperhidrosis Disease Severity Measure-Axillary-7 Item Total Score from baseline to end of treatment were used as the outcome value(s).

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

350 participants

Primary outcome timeframe

Total Trial Participation was approximately 11-15 weeks; outcome measure time frame: Baseline (and treatment start) through to end of treatment, taking approximately 6 weeks.

Results posted on

2024-06-06

Participant Flow

Participant milestones

Participant milestones
Measure
Active
Sofpironium bromide, 15% gel, once per day Sofpironium Bromide Gel, 15%: Active
Vehicle
Vehicle gel, once per day Vehicle: Vehicle gel
Overall Study
STARTED
173
177
Overall Study
COMPLETED
150
162
Overall Study
NOT COMPLETED
23
15

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Safety and Efficacy Study of Sofpironium Bromide in Subjects With Axillary Hyperhidrosis (BBI-4000-CL-301)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Active
n=173 Participants
Sofpironium bromide, 15% gel, once per day Sofpironium Bromide Gel, 15%: Active
Vehicle
n=177 Participants
Vehicle gel, once per day Vehicle: Vehicle gel
Total
n=350 Participants
Total of all reporting groups
Age, Continuous
32.9 years
STANDARD_DEVIATION 11.63 • n=99 Participants
32.4 years
STANDARD_DEVIATION 10.86 • n=107 Participants
32.7 years
STANDARD_DEVIATION 11.21 • n=206 Participants
Age, Customized
9-12 years
2 Participants
n=99 Participants
0 Participants
n=107 Participants
2 Participants
n=206 Participants
Age, Customized
13-16 years
7 Participants
n=99 Participants
9 Participants
n=107 Participants
16 Participants
n=206 Participants
Age, Customized
17-30 years
70 Participants
n=99 Participants
73 Participants
n=107 Participants
143 Participants
n=206 Participants
Age, Customized
≥31 years
94 Participants
n=99 Participants
95 Participants
n=107 Participants
189 Participants
n=206 Participants
Sex: Female, Male
Female
98 Participants
n=99 Participants
99 Participants
n=107 Participants
197 Participants
n=206 Participants
Sex: Female, Male
Male
75 Participants
n=99 Participants
78 Participants
n=107 Participants
153 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
61 Participants
n=99 Participants
60 Participants
n=107 Participants
121 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
111 Participants
n=99 Participants
117 Participants
n=107 Participants
228 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Asian
1 Participants
n=99 Participants
3 Participants
n=107 Participants
4 Participants
n=206 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Black or African American
31 Participants
n=99 Participants
43 Participants
n=107 Participants
74 Participants
n=206 Participants
Race (NIH/OMB)
White
140 Participants
n=99 Participants
130 Participants
n=107 Participants
270 Participants
n=206 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=99 Participants
1 Participants
n=107 Participants
2 Participants
n=206 Participants
Time Since Start of Axillary Hyperhidrosis Symptoms
179.29 Months
STANDARD_DEVIATION 115.155 • n=99 Participants
184.42 Months
STANDARD_DEVIATION 116.898 • n=107 Participants
181.86 Months
STANDARD_DEVIATION 115.708 • n=206 Participants

PRIMARY outcome

Timeframe: Total Trial Participation was approximately 11-15 weeks; outcome measure time frame: Baseline (and treatment start) through to end of treatment, taking approximately 6 weeks.

Population: Intent-to-treat

Change in score from baseline to end of treatment of 7 questions from the patient reported outcome assessment - Hyperhidrosis Disease Severity Measure-Axillary-7; each question had a 5-point response (range 0 \[better\] - 4 \[worse\]). Total scores were calculated by averaging the score of all items, resulting in an axillary hyperhidrosis symptom range of 0 (no sweating) to 4 (worst possible sweating). Improvement corresponded to a ≥2-point reduction of individual participant score from baseline to end of treatment (end of treatment \[6 weeks\] score minus baseline score). Treatment arms compared included vehicle and Sofpironium Bromide Gel, 15%. Counts of participants (per treatment arm) with and without an observed ≥2-point improvement in Hyperhidrosis Disease Severity Measure-Axillary-7 Item Total Score from baseline to end of treatment were used as the outcome value(s).

Outcome measures

Outcome measures
Measure
Active
n=157 Participants
Sofpironium bromide, 15% gel, once per day Sofpironium Bromide Gel, 15%: Active
Vehicle
n=166 Participants
Vehicle gel, once per day Vehicle: Vehicle gel
Number of Participants (Vehicle Arm vs. Sofpironium Bromide Gel, 15%) With and Without an Observed ≥2-point Improvement in Hyperhidrosis Disease Severity Measure-Axillary-7 Item Total Score From Baseline to End of Treatment
Number of Participants YES Observed ≥2-point improvement
84 Participants
54 Participants
Number of Participants (Vehicle Arm vs. Sofpironium Bromide Gel, 15%) With and Without an Observed ≥2-point Improvement in Hyperhidrosis Disease Severity Measure-Axillary-7 Item Total Score From Baseline to End of Treatment
Number of Participants NO Observed ≥2-point improvement
73 Participants
112 Participants

PRIMARY outcome

Timeframe: Total Trial Participation was approximately 11-15 weeks; outcome measure time frame: Baseline (and treatment start) through to end of treatment, taking approximately 6 weeks.

Population: Intent-to-Treat

Individual gravimetric sweat production values were reported as the combined measured weight (mg) of axillary (right+left axillae) sweat production at each visit. Gravimetric sweat production values were rank-transformed. Baseline GSP was the median rank of GSP measurements obtained on Visit 2, Visit 3, and Visit 4. End of Treatment GSP was the median rank of GSP measurements obtained on Visit 10, Visit 11, and Visit 12. The difference in ranked GSP from baseline to end of treatment (ranked GSP at end of treatment \[6 weeks\] minus ranked GSP at baseline) was used as the outcome value.

Outcome measures

Outcome measures
Measure
Active
n=157 Participants
Sofpironium bromide, 15% gel, once per day Sofpironium Bromide Gel, 15%: Active
Vehicle
n=165 Participants
Vehicle gel, once per day Vehicle: Vehicle gel
Observed Change in Participant (Vehicle Arm vs SB Gel 15% Arm) Ranked Gravimetric Sweat Production From Baseline to End of Treatment
-27.88 milligrams
Standard Deviation 94.670
-7.24 milligrams
Standard Deviation 99.695

Adverse Events

Active

Serious events: 1 serious events
Other events: 58 other events
Deaths: 0 deaths

Vehicle

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

Serious adverse events

Serious adverse events
Measure
Active
n=173 participants at risk
Sofpironium bromide, 15% gel, once per day Sofpironium Bromide Gel, 15%: Active
Vehicle
n=176 participants at risk
Vehicle gel, once per day Vehicle: Vehicle gel
Gastrointestinal disorders
SMALL BOWEL OBSTRUCTION
0.58%
1/173 • Number of events 1 • 11-15 weeks
A total of 350 participants were randomized into the study, 173 participants to sofpironium bromide gel,15% and 177 participants to vehicle gel (placebo). All except one participant (349 participants total) received at least one dose of study drug. A subject in the vehicle group was withdrawn from the study before receiving any study treatment because the subject did not meet eligibility criteria.
0.00%
0/176 • 11-15 weeks
A total of 350 participants were randomized into the study, 173 participants to sofpironium bromide gel,15% and 177 participants to vehicle gel (placebo). All except one participant (349 participants total) received at least one dose of study drug. A subject in the vehicle group was withdrawn from the study before receiving any study treatment because the subject did not meet eligibility criteria.

Other adverse events

Other adverse events
Measure
Active
n=173 participants at risk
Sofpironium bromide, 15% gel, once per day Sofpironium Bromide Gel, 15%: Active
Vehicle
n=176 participants at risk
Vehicle gel, once per day Vehicle: Vehicle gel
General disorders
APPLICATION SITE PAIN
6.4%
11/173 • 11-15 weeks
A total of 350 participants were randomized into the study, 173 participants to sofpironium bromide gel,15% and 177 participants to vehicle gel (placebo). All except one participant (349 participants total) received at least one dose of study drug. A subject in the vehicle group was withdrawn from the study before receiving any study treatment because the subject did not meet eligibility criteria.
1.7%
3/176 • 11-15 weeks
A total of 350 participants were randomized into the study, 173 participants to sofpironium bromide gel,15% and 177 participants to vehicle gel (placebo). All except one participant (349 participants total) received at least one dose of study drug. A subject in the vehicle group was withdrawn from the study before receiving any study treatment because the subject did not meet eligibility criteria.
General disorders
APPLICATION SITE PRURITUS
6.4%
11/173 • 11-15 weeks
A total of 350 participants were randomized into the study, 173 participants to sofpironium bromide gel,15% and 177 participants to vehicle gel (placebo). All except one participant (349 participants total) received at least one dose of study drug. A subject in the vehicle group was withdrawn from the study before receiving any study treatment because the subject did not meet eligibility criteria.
0.57%
1/176 • 11-15 weeks
A total of 350 participants were randomized into the study, 173 participants to sofpironium bromide gel,15% and 177 participants to vehicle gel (placebo). All except one participant (349 participants total) received at least one dose of study drug. A subject in the vehicle group was withdrawn from the study before receiving any study treatment because the subject did not meet eligibility criteria.
General disorders
APPLICATION SITE DERMATITIS
5.8%
10/173 • 11-15 weeks
A total of 350 participants were randomized into the study, 173 participants to sofpironium bromide gel,15% and 177 participants to vehicle gel (placebo). All except one participant (349 participants total) received at least one dose of study drug. A subject in the vehicle group was withdrawn from the study before receiving any study treatment because the subject did not meet eligibility criteria.
0.57%
1/176 • 11-15 weeks
A total of 350 participants were randomized into the study, 173 participants to sofpironium bromide gel,15% and 177 participants to vehicle gel (placebo). All except one participant (349 participants total) received at least one dose of study drug. A subject in the vehicle group was withdrawn from the study before receiving any study treatment because the subject did not meet eligibility criteria.
General disorders
APPLICATION SITE ERYTHEMA
5.2%
9/173 • 11-15 weeks
A total of 350 participants were randomized into the study, 173 participants to sofpironium bromide gel,15% and 177 participants to vehicle gel (placebo). All except one participant (349 participants total) received at least one dose of study drug. A subject in the vehicle group was withdrawn from the study before receiving any study treatment because the subject did not meet eligibility criteria.
0.57%
1/176 • 11-15 weeks
A total of 350 participants were randomized into the study, 173 participants to sofpironium bromide gel,15% and 177 participants to vehicle gel (placebo). All except one participant (349 participants total) received at least one dose of study drug. A subject in the vehicle group was withdrawn from the study before receiving any study treatment because the subject did not meet eligibility criteria.
Gastrointestinal disorders
DRY MOUTH
11.6%
20/173 • 11-15 weeks
A total of 350 participants were randomized into the study, 173 participants to sofpironium bromide gel,15% and 177 participants to vehicle gel (placebo). All except one participant (349 participants total) received at least one dose of study drug. A subject in the vehicle group was withdrawn from the study before receiving any study treatment because the subject did not meet eligibility criteria.
0.00%
0/176 • 11-15 weeks
A total of 350 participants were randomized into the study, 173 participants to sofpironium bromide gel,15% and 177 participants to vehicle gel (placebo). All except one participant (349 participants total) received at least one dose of study drug. A subject in the vehicle group was withdrawn from the study before receiving any study treatment because the subject did not meet eligibility criteria.
Eye disorders
MYDRIASIS
7.5%
13/173 • 11-15 weeks
A total of 350 participants were randomized into the study, 173 participants to sofpironium bromide gel,15% and 177 participants to vehicle gel (placebo). All except one participant (349 participants total) received at least one dose of study drug. A subject in the vehicle group was withdrawn from the study before receiving any study treatment because the subject did not meet eligibility criteria.
0.00%
0/176 • 11-15 weeks
A total of 350 participants were randomized into the study, 173 participants to sofpironium bromide gel,15% and 177 participants to vehicle gel (placebo). All except one participant (349 participants total) received at least one dose of study drug. A subject in the vehicle group was withdrawn from the study before receiving any study treatment because the subject did not meet eligibility criteria.
Eye disorders
VISION BLURRED
5.2%
9/173 • 11-15 weeks
A total of 350 participants were randomized into the study, 173 participants to sofpironium bromide gel,15% and 177 participants to vehicle gel (placebo). All except one participant (349 participants total) received at least one dose of study drug. A subject in the vehicle group was withdrawn from the study before receiving any study treatment because the subject did not meet eligibility criteria.
0.00%
0/176 • 11-15 weeks
A total of 350 participants were randomized into the study, 173 participants to sofpironium bromide gel,15% and 177 participants to vehicle gel (placebo). All except one participant (349 participants total) received at least one dose of study drug. A subject in the vehicle group was withdrawn from the study before receiving any study treatment because the subject did not meet eligibility criteria.

Additional Information

Anthony Robinson MS CRNP

Botanix Pharmaceuticals

Phone: +1 (445) 300-3403

Results disclosure agreements

  • Principal investigator is a sponsor employee Agreement terms prioritized a multi-center publication at the study end. Should such a publication not be completed, an investigator right to individually publish results of his/her study (limited to his/her site data) was included, if for purely scientific or educational purposes; not for any commercial purposes. PI(s) were to submit draft materials to the Sponsor 60 days prior to Investigator release of individual abstract or manuscript. Additional disclosure restrictions and terms applied.
  • Publication restrictions are in place

Restriction type: OTHER