12-Week Study of Plecanatide for CIC (The CIC3 Study)

Number of Durable Overall CSBM Responders , Mean Replacement Approach

Time frame · 12-week Treatment Period

A durable overall CSBM responder was defined as a weekly CSBM responder for at least 9 of the 12 treatment weeks, included at least 3 of the last 4 weeks. A CSBM weekly responder was defined as a patient who has ≥ 3 Complete Spontaneous Bowel Movements (CSBMs) per week and an increase from baseline of ≥1 CSBM for that week. A CSBM was a bowel movement that occurred in the absence of laxative use within 24 hours and was associated with the feeling of complete evacuation.

Change From Baseline in CSBMs (CSBMS/Week) Over 12-week Treatment Period, Mean Replacement Approach

Time frame · 12-Week Treatment Period

A Complete Spontaneous Bowel Movement (CSBM) was a Bowel Movement (BM) that occurred in the absence of laxative use within 24 hours of the BM and the patient reported a feeling of complete evacuation. A weekly responder had 3 or more CSBMs and an increase of at least one CSBM from baseline in the same week.

Change From Baseline in SBM (SBMs/Week) Over 12-week Treatment Period, Mean Replacement Approach

Time frame · 12-Week Treatment Period

The change from baseline in the number of Spontaneous Bowel Movement (SBM) over the 12-week Treatment Period was assessed. Baseline was the mean number of SBMs recorded during the 2-week baseline diary assessment period prior to the first dose of study drug. The weekly SBM totals were derived from the daily diary entries reported during the Treatment Period in the BM and Symptom Diary.

Change From Baseline in Stool Consistency Score Over the 12-week Treatment Period, Mean Replacement Approach

Time frame · 12-Week Treatment Period

The stool consistency of each bowel movement (BM) was assessed by patients using the 7-point Bristol Stool Form Scale \[BSFS\] from 1 to 7. 1. = separate hard lumps like nuts (difficult to pass) 2. = sausage shaped but lumpy 3. = like a sausage but with cracks on its surface 4. = like a sausage or snake, smooth and soft 5. = soft blobs with clear-cut edges (passed easily) 6. = fluffy pieces with ragged edges, a mushy stool 7. = watery, no solid pieces (entirely liquid)

Change From Baseline in Straining Score Over 12-Week Treatment Period, Mean Replacement Approach

Time frame · 12-Week Treatment Period

Baseline was the mean of non-missing straining scores recorded during the 2-week baseline diary assessment period prior to the first dose of study drug. The weekly average straining score was derived from the straining scores reported during the Treatment Period in the Daily Symptom Diary. The severity of straining during bowel movements was assessed on a 5-point Likert scale where 0 = none, 1 = mild, 2 = moderate, 3 = severe, and 4 = very severe.