Trial Outcomes & Findings for Efficacy and Safety of SYN-010 in IBS-C (NCT NCT03763175)

NCT ID: NCT03763175

Last Updated: 2022-07-13

Results Overview

Subjects will record their daily bowel movements throughout the duration of the study. Change in weekly average number of CSBMs will be evaluated by comparing reported values pre- and post-treatment.

Recruitment status

TERMINATED

Study phase

PHASE2

Target enrollment

59 participants

Primary outcome timeframe

After completing 12-week course of SYN-010

Results posted on

2022-07-13

Participant Flow

Participant milestones

Participant milestones
Measure
SYN-010 21 mg
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (21 mg PO QD). Study activities will be the same across all three arms. SYN-010 21 mg: 21 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
SYN-010 42 mg
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (42 mg PO QD). Study activities will be the same across all three arms. SYN-010 42 mg: 42 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Placebo
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of placebo. Study activities will be the same across all three arms. Placebo: A placebo will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Overall Study
STARTED
20
19
20
Overall Study
COMPLETED
19
17
19
Overall Study
NOT COMPLETED
1
2
1

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Efficacy and Safety of SYN-010 in IBS-C

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
SYN-010 21 mg
n=20 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (21 mg PO QD). Study activities will be the same across all three arms. SYN-010 21 mg: 21 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
SYN-010 42 mg
n=19 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (42 mg PO QD). Study activities will be the same across all three arms. SYN-010 42 mg: 42 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Placebo
n=20 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of placebo. Study activities will be the same across all three arms. Placebo: A placebo will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Total
n=59 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
0 Participants
n=7 Participants
Age, Categorical
Between 18 and 65 years
20 Participants
n=99 Participants
19 Participants
n=107 Participants
20 Participants
n=206 Participants
59 Participants
n=7 Participants
Age, Categorical
>=65 years
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
Sex: Female, Male
Female
16 Participants
n=99 Participants
14 Participants
n=107 Participants
15 Participants
n=206 Participants
45 Participants
n=7 Participants
Sex: Female, Male
Male
4 Participants
n=99 Participants
5 Participants
n=107 Participants
5 Participants
n=206 Participants
14 Participants
n=7 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=99 Participants
2 Participants
n=107 Participants
2 Participants
n=206 Participants
5 Participants
n=7 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
19 Participants
n=99 Participants
17 Participants
n=107 Participants
18 Participants
n=206 Participants
54 Participants
n=7 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 Participants
Race (NIH/OMB)
Asian
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=7 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
0 Participants
n=7 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
2 Participants
n=7 Participants
Race (NIH/OMB)
White
19 Participants
n=99 Participants
17 Participants
n=107 Participants
15 Participants
n=206 Participants
51 Participants
n=7 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
1 Participants
n=107 Participants
1 Participants
n=206 Participants
2 Participants
n=7 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
1 Participants
n=107 Participants
3 Participants
n=206 Participants
4 Participants
n=7 Participants
Region of Enrollment
United States
20 participants
n=99 Participants
19 participants
n=107 Participants
20 participants
n=206 Participants
59 participants
n=7 Participants

PRIMARY outcome

Timeframe: After completing 12-week course of SYN-010

Population: Change from baseline in weekly average number of CSBMs at Weeks 1 through 12. Weekly average number of CSBMs = 7 x (sum of daily number of CSBMs)/ (number of days with CSBM assessment) for the specific week. The analysis for the primary endpoint was performed using the analysis of covariance (ANCOVA) with treatment group and the baseline value as covariates based on the full analysis set. The primary analysis was conducted using the observed values.

Subjects will record their daily bowel movements throughout the duration of the study. Change in weekly average number of CSBMs will be evaluated by comparing reported values pre- and post-treatment.

Outcome measures

Outcome measures
Measure
SYN-010 21 mg
n=20 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (21 mg PO QD). Study activities will be the same across all three arms. SYN-010 21 mg: 21 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
SYN-010 42 mg
n=19 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (42 mg PO QD). Study activities will be the same across all three arms. SYN-010 42 mg: 42 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Placebo
n=20 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of placebo. Study activities will be the same across all three arms. Placebo: A placebo will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Change From Baseline in the Weekly Average Number of Completely Spontaneous Bowel Movements (CSBM) Compared to the 12-week Treatment Period
1.53 Weekly average CSBMs
Standard Error 0.32
0.32 Weekly average CSBMs
Standard Error 0.32
0.51 Weekly average CSBMs
Standard Error 0.33

SECONDARY outcome

Timeframe: After completing 12-week course of SYN-010

An overall 12-week responder is defined as a patient with a weekly response in at least 50% of the weeks of treatment (6 of 12 weeks). A weekly response is defined as a decrease in the patient's weekly average score for worst abdominal pain in the past 24 hours of at least 30% compared to baseline and a stool frequency increase of 1 or more CSBMs per week compared with baseline.

Outcome measures

Outcome measures
Measure
SYN-010 21 mg
n=20 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (21 mg PO QD). Study activities will be the same across all three arms. SYN-010 21 mg: 21 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
SYN-010 42 mg
n=19 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (42 mg PO QD). Study activities will be the same across all three arms. SYN-010 42 mg: 42 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Placebo
n=20 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of placebo. Study activities will be the same across all three arms. Placebo: A placebo will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Proportion of Overall Responders During the 12-week Treatment Period
1 Participants
2 Participants
6 Participants

SECONDARY outcome

Timeframe: After completing 12-week course of SYN-010

An overall stool frequency responder is defined as a patient with a weekly stool frequency response in at least 50% of the weeks of treatment (6 of 12 weeks). A weekly stool frequency response is defined as a stool frequency increase of 1 or more CSBMs per week compared with baseline, with abdominal pain unchanged or improved compared with baseline.

Outcome measures

Outcome measures
Measure
SYN-010 21 mg
n=20 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (21 mg PO QD). Study activities will be the same across all three arms. SYN-010 21 mg: 21 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
SYN-010 42 mg
n=19 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (42 mg PO QD). Study activities will be the same across all three arms. SYN-010 42 mg: 42 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Placebo
n=20 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of placebo. Study activities will be the same across all three arms. Placebo: A placebo will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Proportion of Overall Stool Frequency Responders During the 12-week Treatment Period
4 Participants
6 Participants
9 Participants

SECONDARY outcome

Timeframe: After completing 12-week course of SYN-010

Population: secondary outcomes measures were not analyzed as interim analysis showed that the study has not met its primary end point and the study was terminated.

An overall abdominal pain intensity responder is defined as a patient with a weekly abdominal pain intensity response in at least 50% of the weeks of treatment (6 of 12 weeks). A weekly response abdominal pain intensity response is defined as a decrease in the patient's weekly average score for worst abdominal pain in the past 24 hours of at least 30% compared to baseline, with stool frequency unchanged or improved compared with baseline.

Outcome measures

Outcome measures
Measure
SYN-010 21 mg
n=20 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (21 mg PO QD). Study activities will be the same across all three arms. SYN-010 21 mg: 21 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
SYN-010 42 mg
n=19 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (42 mg PO QD). Study activities will be the same across all three arms. SYN-010 42 mg: 42 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Placebo
n=20 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of placebo. Study activities will be the same across all three arms. Placebo: A placebo will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Proportion of Overall Abdominal Pain Intensity Responders During the 12-week Treatment Period
4 Participants
4 Participants
7 Participants

SECONDARY outcome

Timeframe: After completing 12-week course of SYN-010

An overall bloating responder is defined as a patient with a weekly bloating response in at least 50% of the weeks of treatment (6 of 12 weeks). A weekly bloating response is defined as a weekly average bloating score of at least 30% improvement compared to baseline, with stool frequency unchanged or improved compared with baseline.

Outcome measures

Outcome measures
Measure
SYN-010 21 mg
n=20 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (21 mg PO QD). Study activities will be the same across all three arms. SYN-010 21 mg: 21 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
SYN-010 42 mg
n=19 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (42 mg PO QD). Study activities will be the same across all three arms. SYN-010 42 mg: 42 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Placebo
n=20 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of placebo. Study activities will be the same across all three arms. Placebo: A placebo will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Proportion of Overall Bloating Responders During the 12-week Treatment Period
3 Participants
3 Participants
1 Participants

SECONDARY outcome

Timeframe: After completing 12-week course of SYN-010

Subjects will record their use of rescue medication throughout the study period. Proportion of patients using rescue medication after completing the 12-week course of treatment will be compared to those reporting usage at baseline screening period.

Outcome measures

Outcome measures
Measure
SYN-010 21 mg
n=20 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (21 mg PO QD). Study activities will be the same across all three arms. SYN-010 21 mg: 21 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
SYN-010 42 mg
n=19 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (42 mg PO QD). Study activities will be the same across all three arms. SYN-010 42 mg: 42 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Placebo
n=20 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of placebo. Study activities will be the same across all three arms. Placebo: A placebo will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Proportion of Patients Using Rescue Medication
9 Participants
11 Participants
8 Participants

OTHER_PRE_SPECIFIED outcome

Timeframe: After completing 12-week course of SYN-010

Outcome will be assessed by evaluating proportion of patients reporting adequate relief pre- and post-treatment on validated questionnaire.

Outcome measures

Outcome measures
Measure
SYN-010 21 mg
n=17 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (21 mg PO QD). Study activities will be the same across all three arms. SYN-010 21 mg: 21 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
SYN-010 42 mg
n=14 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (42 mg PO QD). Study activities will be the same across all three arms. SYN-010 42 mg: 42 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Placebo
n=18 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of placebo. Study activities will be the same across all three arms. Placebo: A placebo will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Proportion of Patients With Adequate Relief
1 Participants
2 Participants
6 Participants

OTHER_PRE_SPECIFIED outcome

Timeframe: After completing 12-week course of SYN-010

Change in exhaled methane level as a potential predictor of constipation improvement will be evaluated by comparing lactulose breath tests pre- and post-treatment.

Outcome measures

Outcome measures
Measure
SYN-010 21 mg
n=18 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (21 mg PO QD). Study activities will be the same across all three arms. SYN-010 21 mg: 21 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
SYN-010 42 mg
n=18 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (42 mg PO QD). Study activities will be the same across all three arms. SYN-010 42 mg: 42 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Placebo
n=20 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of placebo. Study activities will be the same across all three arms. Placebo: A placebo will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Mean Change From Baseline in the Area-under-the-curve (AUC) of Breath Methane Production, Based on the 120-minute Lactulose Breath Test.
-18.678 particles per million * min
Standard Deviation 51.000
-20.137 particles per million * min
Standard Deviation 78.738
-39.199 particles per million * min
Standard Deviation 76.518

OTHER_PRE_SPECIFIED outcome

Timeframe: After completing course of SYN-010

Population: secondary outcomes measures were not analyzed as interim analysis showed that the study has not met its primary end point and the study was terminated.

Change in exhaled methane level as a potential predictor of constipation improvement will be evaluated by comparing single-point breath tests pre- and post-treatment.

Outcome measures

Outcome measures
Measure
SYN-010 21 mg
n=18 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (21 mg PO QD). Study activities will be the same across all three arms. SYN-010 21 mg: 21 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
SYN-010 42 mg
n=18 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (42 mg PO QD). Study activities will be the same across all three arms. SYN-010 42 mg: 42 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Placebo
n=20 Participants
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of placebo. Study activities will be the same across all three arms. Placebo: A placebo will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Change From Baseline in Breath Methane Production Based on a Single-point Breath Methane Test
-22.623 particles per million
Standard Deviation 26.7900
-4.785 particles per million
Standard Deviation 26.3392
-10.081 particles per million
Standard Deviation 36.0877

Adverse Events

SYN-010 21 mg

Serious events: 0 serious events
Other events: 9 other events
Deaths: 0 deaths

SYN-010 42 mg

Serious events: 1 serious events
Other events: 4 other events
Deaths: 0 deaths

Placebo

Serious events: 0 serious events
Other events: 10 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
SYN-010 21 mg
n=20 participants at risk
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (21 mg PO QD). Study activities will be the same across all three arms. SYN-010 21 mg: 21 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
SYN-010 42 mg
n=19 participants at risk
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (42 mg PO QD). Study activities will be the same across all three arms. SYN-010 42 mg: 42 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Placebo
n=20 participants at risk
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of placebo. Study activities will be the same across all three arms. Placebo: A placebo will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Nervous system disorders
Hemiplegic Migraine
0.00%
0/20 • 1 year, 8 months
5.3%
1/19 • Number of events 1 • 1 year, 8 months
0.00%
0/20 • 1 year, 8 months

Other adverse events

Other adverse events
Measure
SYN-010 21 mg
n=20 participants at risk
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (21 mg PO QD). Study activities will be the same across all three arms. SYN-010 21 mg: 21 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
SYN-010 42 mg
n=19 participants at risk
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of lovastatin (42 mg PO QD). Study activities will be the same across all three arms. SYN-010 42 mg: 42 mg lovastatin will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Placebo
n=20 participants at risk
Enrolled subjects will be screened and randomized into the three study arms in a 1:1:1 ratio. 50 subjects with constipation-predominant irritable bowel syndrome (IBS-C) will be administered a 12-week course of placebo. Study activities will be the same across all three arms. Placebo: A placebo will be administered to patients diagnosed with IBS-C to evaluate whether the medication and dose is effective in increasing frequency of completely spontaneous bowel movements. The secondary objectives of the study are to assess the role of lovastatin lactone in increasing overall stool frequency and reducing abdominal pain severity, bloating severity, and rescue medication use. Additional endpoints include improvement in reported adequate relief and the effect of the study drug in lowering exhaled methane levels.
Psychiatric disorders
Insomnia
10.0%
2/20 • Number of events 2 • 1 year, 8 months
0.00%
0/19 • 1 year, 8 months
10.0%
2/20 • Number of events 2 • 1 year, 8 months
Musculoskeletal and connective tissue disorders
Muscle Aches
10.0%
2/20 • Number of events 2 • 1 year, 8 months
10.5%
2/19 • Number of events 2 • 1 year, 8 months
15.0%
3/20 • Number of events 3 • 1 year, 8 months
Nervous system disorders
Metallic Taste, Paresthesia, Dizziness
5.0%
1/20 • Number of events 1 • 1 year, 8 months
5.3%
1/19 • Number of events 1 • 1 year, 8 months
5.0%
1/20 • Number of events 1 • 1 year, 8 months
Gastrointestinal disorders
Abdominal Pain, Bloating, Flatulence, Nausea, Indigestion
20.0%
4/20 • Number of events 6 • 1 year, 8 months
5.3%
1/19 • Number of events 3 • 1 year, 8 months
20.0%
4/20 • Number of events 4 • 1 year, 8 months

Additional Information

Director of Clinical Trials

MAST Program

Phone: (310) 423-0617

Results disclosure agreements

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