Tetrodotoxin is a study drug being tested for its effects on neuropathic pain, which is pain caused by nerve damage. This trial is for people who have nerve pain due to chemotherapy treatment with drugs called platinum or taxane. Before joining, patients will have a screening period of up to 35 days to check if they are eligible. The trial includes a 4-day treatment period followed by a 12-week follow-up to observe changes in pain levels compared to a placebo (a harmless pill that has no effect).

To join, participants must be over 21, have stable nerve pain for at least 3 months, and not have any other serious health issues. They also must not have used certain drugs recently that might affect the study. People must agree to use birth control during the trial period.

• The study lasts about 13 weeks after treatment starts.
• No new treatments like chemotherapy or radiotherapy are allowed during the study.
• Participation involves multiple visits and monitoring of pain levels.

This study does not mention any specific compensation for participants. If interested, check eligibility and discuss with your doctor.