Trial Outcomes & Findings for Penile Length Restoration in Men With Diabetes Mellitus, Type II (NCT NCT03756688)

NCT ID: NCT03756688

Last Updated: 2023-02-21

Results Overview

Primary objective of this study is to assess penile length pre and post completion of RestoreX traction therapy compared to control groups (no treatment) of Diabetes Type II patients. Measurements were obtained at baseline and 6 months post-prostatectomy.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

110 participants

Primary outcome timeframe

Baseline to 6 months

Results posted on

2023-02-21

Participant Flow

Participant milestones

Participant milestones
Measure
Group 1: Control
No treatment will be administered for the entirety of the study (6 months)
Group 2: Treatment
PTT for 30 min 2x/ day x 3 months, followed by no treatment x 3 months RestoreX PTT - 3 months: Penile traction therapy in straight position for first phase (3 months)
Group 3: Treatment
PTT for 30 min 2x/day x 3 months, followed by once weekly (30 minutes) x 3 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Group 4: Treatment
PTT for 30 min 2x day x 6 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Overall Study
STARTED
28
28
27
27
Overall Study
COMPLETED
26
17
19
24
Overall Study
NOT COMPLETED
2
11
8
3

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
Group 1: Control
n=28 Participants
No treatment will be administered for the entirety of the study (6 months)
Group 2: Treatment
n=28 Participants
PTT for 30 min 2x/ day x 3 months, followed by no treatment x 3 months RestoreX PTT - 3 months: Penile traction therapy in straight position for first phase (3 months)
Group 3: Treatment
n=27 Participants
PTT for 30 min 2x/day x 3 months, followed by once weekly (30 minutes) x 3 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Group 4: Treatment
n=27 Participants
PTT for 30 min 2x day x 6 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Total
n=110 Participants
Total of all reporting groups
Age, Continuous
53.5 years
STANDARD_DEVIATION 7.0 • n=28 Participants
55.1 years
STANDARD_DEVIATION 5.3 • n=28 Participants
55.0 years
STANDARD_DEVIATION 6.3 • n=27 Participants
56.2 years
STANDARD_DEVIATION 5.4 • n=27 Participants
54.9 years
STANDARD_DEVIATION 6.1 • n=110 Participants
Sex: Female, Male
Female
0 Participants
n=28 Participants
0 Participants
n=28 Participants
0 Participants
n=27 Participants
0 Participants
n=27 Participants
0 Participants
n=110 Participants
Sex: Female, Male
Male
28 Participants
n=28 Participants
28 Participants
n=28 Participants
27 Participants
n=27 Participants
27 Participants
n=27 Participants
110 Participants
n=110 Participants
Race and Ethnicity Not Collected
0 Participants
Race and Ethnicity were not collected from any participant.

PRIMARY outcome

Timeframe: Baseline to 6 months

Primary objective of this study is to assess penile length pre and post completion of RestoreX traction therapy compared to control groups (no treatment) of Diabetes Type II patients. Measurements were obtained at baseline and 6 months post-prostatectomy.

Outcome measures

Outcome measures
Measure
Group 1: Control
n=23 Participants
No treatment will be administered for the entirety of the study (6 months)
Group 2: Treatment
n=17 Participants
PTT for 30 min 2x/ day x 3 months, followed by no treatment x 3 months RestoreX PTT - 3 months: Penile traction therapy in straight position for first phase (3 months)
Group 3: Treatment
n=18 Participants
PTT for 30 min 2x/day x 3 months, followed by once weekly (30 minutes) x 3 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Group 4: Treatment
n=17 Participants
PTT for 30 min 2x day x 6 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Penile Length Change Between Baseline and Month 6
0 Median change from baseline (cm)
Interval -0.5 to 0.5
0.5 Median change from baseline (cm)
Interval -0.3 to 0.9
0.5 Median change from baseline (cm)
Interval 0.0 to 1.5
0.8 Median change from baseline (cm)
Interval 0.0 to 1.5

SECONDARY outcome

Timeframe: 6 months

Population: No patients were analyzed in the control arm since the outcome measure was assessing compliance with traction therapy (not administered to controls).

Records of use from daily journals

Outcome measures

Outcome measures
Measure
Group 1: Control
No treatment will be administered for the entirety of the study (6 months)
Group 2: Treatment
n=17 Participants
PTT for 30 min 2x/ day x 3 months, followed by no treatment x 3 months RestoreX PTT - 3 months: Penile traction therapy in straight position for first phase (3 months)
Group 3: Treatment
n=17 Participants
PTT for 30 min 2x/day x 3 months, followed by once weekly (30 minutes) x 3 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Group 4: Treatment
n=21 Participants
PTT for 30 min 2x day x 6 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Patient Compliance With Traction Therapy
93.5 Percent compliance
Standard Deviation 9.7
91.5 Percent compliance
Standard Deviation 14.3
85.2 Percent compliance
Standard Deviation 21.1

SECONDARY outcome

Timeframe: 6 months

Likert scale used to assess self-reported overall satisfaction; 1-10 (10 = maximum satisfaction); higher values signify a better outcome. Satisfaction was assessed at 6 months post-prostatectomy.

Outcome measures

Outcome measures
Measure
Group 1: Control
n=16 Participants
No treatment will be administered for the entirety of the study (6 months)
Group 2: Treatment
n=18 Participants
PTT for 30 min 2x/ day x 3 months, followed by no treatment x 3 months RestoreX PTT - 3 months: Penile traction therapy in straight position for first phase (3 months)
Group 3: Treatment
n=20 Participants
PTT for 30 min 2x/day x 3 months, followed by once weekly (30 minutes) x 3 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Group 4: Treatment
PTT for 30 min 2x day x 6 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Patient Reported Satisfaction With Traction Therapy at 6 Months.
7.5 score on a scale
Interval 4.3 to 9.0
8 score on a scale
Interval 6.0 to 9.0
8 score on a scale
Interval 6.3 to 8.8

SECONDARY outcome

Timeframe: 3 and 6 months post-prostatectomy

Adverse events were assessed at 3- and 6-months post-prostatectomy, with results summed and reported as a total.

Outcome measures

Outcome measures
Measure
Group 1: Control
n=17 Participants
No treatment will be administered for the entirety of the study (6 months)
Group 2: Treatment
n=18 Participants
PTT for 30 min 2x/ day x 3 months, followed by no treatment x 3 months RestoreX PTT - 3 months: Penile traction therapy in straight position for first phase (3 months)
Group 3: Treatment
n=20 Participants
PTT for 30 min 2x/day x 3 months, followed by once weekly (30 minutes) x 3 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Group 4: Treatment
PTT for 30 min 2x day x 6 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Number of Participants With Adverse Events With Use of RestoreX
Temporary penile pain (mild)
2 Participants
2 Participants
2 Participants
Number of Participants With Adverse Events With Use of RestoreX
Pain in other location (unclear if related)
1 Participants
0 Participants
1 Participants
Number of Participants With Adverse Events With Use of RestoreX
Temporary erythema / discoloration (mild)
1 Participants
1 Participants
4 Participants
Number of Participants With Adverse Events With Use of RestoreX
Temporary decreased sensation (mild)
0 Participants
0 Participants
1 Participants
Number of Participants With Adverse Events With Use of RestoreX
Other (unclear if related)
0 Participants
0 Participants
1 Participants
Number of Participants With Adverse Events With Use of RestoreX
Temporary bleeding from tape (mild)
0 Participants
0 Participants
1 Participants

SECONDARY outcome

Timeframe: 6 months

Population: Note that reported events represent subjective reporting of penile curvature.

Subjective question to determine if the patient has developed any new penile curvature, indentation, deformity, or other findings consistent with Peyronie's Disease during the study period

Outcome measures

Outcome measures
Measure
Group 1: Control
n=23 Participants
No treatment will be administered for the entirety of the study (6 months)
Group 2: Treatment
n=16 Participants
PTT for 30 min 2x/ day x 3 months, followed by no treatment x 3 months RestoreX PTT - 3 months: Penile traction therapy in straight position for first phase (3 months)
Group 3: Treatment
n=18 Participants
PTT for 30 min 2x/day x 3 months, followed by once weekly (30 minutes) x 3 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Group 4: Treatment
n=22 Participants
PTT for 30 min 2x day x 6 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Number of Participants With De-novo Peyronie's Disease Development
1 Participants
2 Participants
1 Participants
1 Participants

SECONDARY outcome

Timeframe: 6 months

Subjective questions on patient perceived improvement in length (yes/no, qualitative \[large, medium, small, none\]); note that some groups add to \>100% due to the effects of rounding.

Outcome measures

Outcome measures
Measure
Group 1: Control
n=17 Participants
No treatment will be administered for the entirety of the study (6 months)
Group 2: Treatment
n=14 Participants
PTT for 30 min 2x/ day x 3 months, followed by no treatment x 3 months RestoreX PTT - 3 months: Penile traction therapy in straight position for first phase (3 months)
Group 3: Treatment
n=16 Participants
PTT for 30 min 2x/day x 3 months, followed by once weekly (30 minutes) x 3 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Group 4: Treatment
n=20 Participants
PTT for 30 min 2x day x 6 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Subjective Comparison of Changes in Penile Length
Subjective improvement in length (% yes)
0 Percentage of participants
36 Percentage of participants
63 Percentage of participants
65 Percentage of participants
Subjective Comparison of Changes in Penile Length
Subjective improvement in length (% unsure)
0 Percentage of participants
36 Percentage of participants
25 Percentage of participants
25 Percentage of participants
Subjective Comparison of Changes in Penile Length
Subjective improvement in length (no)
100 Percentage of participants
29 Percentage of participants
13 Percentage of participants
10 Percentage of participants
Subjective Comparison of Changes in Penile Length
Subjective improvement (large)
0 Percentage of participants
0 Percentage of participants
9 Percentage of participants
13 Percentage of participants
Subjective Comparison of Changes in Penile Length
Subjective improvement (medium)
0 Percentage of participants
50 Percentage of participants
9 Percentage of participants
44 Percentage of participants
Subjective Comparison of Changes in Penile Length
Subjective improvement (small)
0 Percentage of participants
50 Percentage of participants
82 Percentage of participants
38 Percentage of participants
Subjective Comparison of Changes in Penile Length
Subjective improvement (none)
100 Percentage of participants
0 Percentage of participants
0 Percentage of participants
6 Percentage of participants

SECONDARY outcome

Timeframe: Baseline and 6 months

Standardized questionnaire assessment of erectile function (International Index of Erectile Function standardized questionnaire, Erectile Function Domain \[questions 1-5 and 15\]). Higher scores are better. Assessments were obtained at baseline and at 6 months post-prostatectomy with the result reported being 6 months minus baseline. Minimum score for the change since baseline = -29 (i.e. 1 minus 30), maximum score = 29 (i.e. 30 minus 1)

Outcome measures

Outcome measures
Measure
Group 1: Control
n=25 Participants
No treatment will be administered for the entirety of the study (6 months)
Group 2: Treatment
n=17 Participants
PTT for 30 min 2x/ day x 3 months, followed by no treatment x 3 months RestoreX PTT - 3 months: Penile traction therapy in straight position for first phase (3 months)
Group 3: Treatment
n=17 Participants
PTT for 30 min 2x/day x 3 months, followed by once weekly (30 minutes) x 3 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Group 4: Treatment
n=20 Participants
PTT for 30 min 2x day x 6 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Erectile Function Among Groups - Evaluating Change From Baseline to 6 Months.
0 score on a scale
Standard Deviation 3.3
1.1 score on a scale
Standard Deviation 4.6
4.2 score on a scale
Standard Deviation 10.4
4.3 score on a scale
Standard Deviation 9.3

Adverse Events

Group 2: Treatment

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

Group 3: Treatment

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

Group 4: Treatment

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

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Group 2: Treatment
n=28 participants at risk
PTT for 30 min 2x/ day x 3 months, followed by no treatment x 3 months RestoreX PTT - 3 months: Penile traction therapy in straight position for first phase (3 months)
Group 3: Treatment
n=27 participants at risk
PTT for 30 min 2x/day x 3 months, followed by once weekly (30 minutes) x 3 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Group 4: Treatment
n=27 participants at risk
PTT for 30 min 2x day x 6 months RestoreX PTT - 6 months: Penile traction therapy in straight position for all 6 months.
Skin and subcutaneous tissue disorders
Transient penile pain
7.1%
2/28 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
7.4%
2/27 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
7.4%
2/27 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
Skin and subcutaneous tissue disorders
Transient penile erythema
3.6%
1/28 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
3.7%
1/27 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
14.8%
4/27 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
Skin and subcutaneous tissue disorders
Other pain (non-descript location)
3.6%
1/28 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
0.00%
0/27 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
3.7%
1/27 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
Skin and subcutaneous tissue disorders
Transient decreased penile sensation
0.00%
0/28 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
0.00%
0/27 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
3.7%
1/27 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
Skin and subcutaneous tissue disorders
Temporary bleeding
0.00%
0/28 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
0.00%
0/27 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
3.7%
1/27 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
Skin and subcutaneous tissue disorders
Other (unclear if related)
0.00%
0/28 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
0.00%
0/27 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.
3.7%
1/27 • Adverse events were collected over a 6 month period for each subject receiving penile traction treatment.
The control group (Group 1) did not receive penile traction treatment with the traction device. Therefore, adverse events were not collected for this group.

Additional Information

Dr. Landon Trost

Mayo Clinic

Phone: 507-202-1995

Results disclosure agreements

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