Title

Efficacy and Safety of AQX-1125 in IC/BPS
A Phase 2 Study to Evaluate the Efficacy and Safety of AQX-1125 in Subjects With Interstitial Cystitis/Bladder Pain Syndrome Mediated by the Src Homology-2-domain-containing Inositol 5' Phosphatase [SHIP1] Pathway
  • Phase

    Phase 2
  • Study Type

    Interventional
  • Intervention/Treatment

    aqx-1125 ...
  • Study Participants

    69
The primary objective of this study is to evaluate the effect of 6 weeks of treatment with once daily administration of AQX-1125 compared to placebo on average daily pain in subjects with interstitial cystitis/bladder pain syndrome (IC/BPS), during and after treatment, using a standardized 11-point numerical rating scale (NRS) pain score recorded by electronic diary
Study Started
Jun 30
2013
Primary Completion
Jun 30
2015
Study Completion
Jun 30
2015
Results Posted
Sep 05
2017
Last Update
Sep 05
2017

Drug AQX-1125

Synthetic SHIP1 activator

Drug Placebo

Double blind placebo capsule

AQX-1125 Experimental

1 x AQX-1125 Capsule daily

Placebo Placebo Comparator

1 x placebo capsule daily

Criteria

Inclusion Criteria:

Be females, ≥18 and ≤75 years of age, who have consistently had symptoms of bladder pain in addition to urinary urgency and/or urinary frequency for more than 12 months
Have had the diagnosis of interstitial cystitis for > 6 months (pain for at least 12 months) but ≤15 years
Have average daily pain score of at least 5 out of 10 on the 11-point Numerical Rating Scale [NRS] pain scale in the 9 days prior to baseline
Have undergone a cystoscopy and have documented visible signs of bladder bleeding, lesions or glomerulation within the last 36 months prior to baseline.
Subjects if of child bearing potential, must agree to avoid pregnancy and use medically acceptable method of contraception from screening visit and throughout the study.
Must be capable of voiding independently

Exclusion Criteria:

Pelvic floor pain (>5 out of 10 on the 11-point NRS pain scale following a pelvic pain assessment)
Have a body mass index [BMI] of <18 kg/m2 or >39 kg/m2
Have had a urinary tract infection including bacterial cystitis within the past 30 days.
Have greater than 1+ hematuria on dipstick test at screening from an unknown cause
History of previous procedure(s) (augmentation cystoplasty, cystectomy, or cystolysis) that has affected bladder function

Summary

AQX-1125

Placebo

All Events

Event Type Organ System Event Term AQX-1125 Placebo

Change From Baseline in the Average Daily Bladder Pain Score (e-Diary)

Change from baseline to week 6 in the average daily bladder pain score using a standardized 11-point numerical rating scale (NRS) recorded by e-diary. The 11-point NRS ranges from 0-10 with 0 indicating 'no pain' and 10 indicating 'worst pain'.

AQX-1125

Baseline

6.4
units on a scale (Mean)
Standard Error: 0.14

Week 6: Change from Baseline

-2.4
units on a scale (Mean)
Standard Error: 0.37

Placebo

Baseline

6.7
units on a scale (Mean)
Standard Error: 0.18

Week 6: Change from Baseline

-1.4
units on a scale (Mean)
Standard Error: 0.32

Change From Baseline in the Maximum Daily Bladder Pain Score (e-Diary)

Change from baseline to week 6 in the maximum daily bladder pain score using a standardized 11-point numerical rating scale (NRS) recorded by e-diary. The 11-point NRS ranges from 0-10 with 0 indicating 'no pain' and 10 indicating 'worst pain'.

AQX-1125

Baseline

7.6
units on a scale (Mean)
Standard Error: 0.17

Week 6: Change from Baseline

-2.6
units on a scale (Mean)
Standard Error: 0.42

Placebo

Baseline

7.9
units on a scale (Mean)
Standard Error: 0.19

Week 6: Change from Baseline

-1.4
units on a scale (Mean)
Standard Error: 0.35

Change From Baseline in the Average Bladder Pain Score (Clinic)

Change from baseline to week 6 in the average daily bladder pain score using a standardized 11-point numerical rating scale (NRS) recorded at study visit. The 11-point NRS ranges from 0-10 with 0 indicating 'no pain' and 10 indicating 'worst pain'.

AQX-1125

Baseline

6.7
units on a scale (Mean)
Standard Error: 0.19

Week 6: Change from Baseline

-2.6
units on a scale (Mean)
Standard Error: 0.46

Placebo

Baseline

6.7
units on a scale (Mean)
Standard Error: 0.20

Week 6: Change from Baseline

-1.1
units on a scale (Mean)
Standard Error: 0.40

Change From Baseline in the Maximum Bladder Pain Score (Clinic)

Change from baseline to week 6 in the maximum daily bladder pain score using a standardized 11-point numerical rating scale (NRS) recorded at study visits. The 11-point NRS ranges from 0-10 with 0 indicating 'no pain' and 10 indicating 'worst pain'.

AQX-1125

Baseline

8.1
units on a scale (Mean)
Standard Error: 0.22

Week 6: Change from Baseline

-2.8
units on a scale (Mean)
Standard Error: 0.55

Placebo

Baseline

8.0
units on a scale (Mean)
Standard Error: 0.23

Week 6: Change from Baseline

-1.1
units on a scale (Mean)
Standard Error: 0.50

Bladder Pain/Interstitial Cystitis Symptom Score [BPIC-SS]

Change in baseline to week 6 in the BPIC-SS participant reported questionnaire total score. The total BPIC-SS score ranges from 0-38, with a higher score indicative of worse symptoms. A score of 19 or more was considered to be discriminating between IC/BPS and overactive bladder at screening.

AQX-1125

Baseline

29.6
units on a scale (Mean)
Standard Error: 0.59

Week 6: Change from Baseline

-8.8
units on a scale (Mean)
Standard Error: 1.37

Placebo

Baseline

31.6
units on a scale (Mean)
Standard Error: 0.58

Week 6: Change from Baseline

-4.0
units on a scale (Mean)
Standard Error: 1.17

O'Leary-Sant Interstitial Cystitis Symptom Index/Problem Index [ICSI/PI]

Change from baseline to week 6 in the O'Leary Sant Symptom and Problem Index combined total scores. Both the ICSI and ICPI consist of 4 questions with responses for the ICSI rated on a scale of 0-5 (maximum score of 20, with a higher score indicating worse symptoms) and for the ICPI on a scale of 0-4 (maximum score of 16, with a higher score indicating worse symptoms). For the combined ICSI/PI the maximum score is 36, with a higher score indicating worse symptoms.

AQX-1125

Baseline (ICPI)

12.9
units on a scale (Mean)
Standard Error: 0.39

Baseline (ICSI)

14.4
units on a scale (Mean)
Standard Error: 0.48

Baseline (ICSI/PI)

27.3
units on a scale (Mean)
Standard Error: 0.83

Week 6: Change from Baseline (ICPI)

-3.6
units on a scale (Mean)
Standard Error: 0.69

Week 6: Change from Baseline (ICSI)

-3.8
units on a scale (Mean)
Standard Error: 0.62

Week 6: Change from Baseline (ICSI/PI)

-7.3
units on a scale (Mean)
Standard Error: 1.25

Placebo

Baseline (ICPI)

14.1
units on a scale (Mean)
Standard Error: 0.34

Baseline (ICSI)

16.1
units on a scale (Mean)
Standard Error: 0.51

Baseline (ICSI/PI)

30.2
units on a scale (Mean)
Standard Error: 0.78

Week 6: Change from Baseline (ICPI)

-1.6
units on a scale (Mean)
Standard Error: 0.52

Week 6: Change from Baseline (ICSI)

-1.4
units on a scale (Mean)
Standard Error: 0.57

Week 6: Change from Baseline (ICSI/PI)

-3.0
units on a scale (Mean)
Standard Error: 1.04

Short Form 12 Version 2.0 Health Survey [SF-12v2] Questionnaire

Change from baseline to week 6 in the SF-12v2 questionnaire. Two parameters, PCS (physical component summary) and MCS (mental component summary) were calculated. Both components scores range from 0 to 100 with higher scores indicating better Quality of Life.

AQX-1125

Baseline (Mental Component)

46.4
units on a scale (Mean)
Standard Error: 1.34

Baseline (Physical Component)

41.4
units on a scale (Mean)
Standard Error: 1.42

Week 6: Change from Baseline (Mental Component)

0.5
units on a scale (Mean)
Standard Error: 1.97

Week 6: Change from Baseline (Physical Component)

3.8
units on a scale (Mean)
Standard Error: 1.55

Placebo

Baseline (Mental Component)

41.3
units on a scale (Mean)
Standard Error: 2.20

Baseline (Physical Component)

36.1
units on a scale (Mean)
Standard Error: 2.11

Week 6: Change from Baseline (Mental Component)

4.0
units on a scale (Mean)
Standard Error: 1.67

Week 6: Change from Baseline (Physical Component)

1.8
units on a scale (Mean)
Standard Error: 1.22

Voiding Frequency as Recorded by Diary Over a 24 Hour Period

For a 24-hour period (within 3 days of the subsequent visit), subjects recorded the frequency of each void prior to visit. The outcome measure was the change from baseline at week 6.

AQX-1125

Baseline

15.7
number of voids (Mean)
Standard Error: 1.21

Week 6: Change from Baseline

-3.6
number of voids (Mean)
Standard Error: 1.05

Placebo

Baseline

16.8
number of voids (Mean)
Standard Error: 1.26

Week 6: Change from Baseline

-0.8
number of voids (Mean)
Standard Error: 0.75

AQX-1125 Concentrations in Plasma and Urine (Trough Values)

AQX-1125 Plasma and Urine Concentrations were measured at week 4 and week 6.

AQX-1125

Plasma Week 4

252.0
ng/mL (Mean)
Standard Deviation: 129

Plasma Week 6

225.0
ng/mL (Mean)
Standard Deviation: 127

Urine Week 4

Urine Week 6

Total

69
Participants

BMI

27.5
kg/m^2 (Mean)
Standard Deviation: 5.31

Duration of Diagnosis

69.4
Months (Mean)
Standard Deviation: 55.73

Weight

71.5
kg (Mean)
Standard Deviation: 14.98

Age, Categorical

Ethnicity (NIH/OMB)

Race (NIH/OMB)

Region of Enrollment

Sex/Gender, Customized

Overall Study

AQX-1125

Placebo