This study is exploring a treatment called V117957 for interstitial cystitis/bladder pain syndrome (IC/BPS). IC/BPS is a condition that causes discomfort or pain in the bladder, without an infection or other known cause. Participants must be adult women with a confirmed diagnosis and certain bladder pain scores. They should not have recent urinary infections or certain other urinary issues. The study compares the drug to a placebo (a "fake" treatment without active medicine) to see how safe and effective it is.

• The study involves taking medication and regular doctor visits to check progress.
• Participants should not have had certain bladder treatments recently, unless they had no lasting effects.
• Women must use reliable birth control and not be pregnant during the study.