The goal of this clinical trial is to learn about the effect of food on absorption of oral Paclitaxel when co- administered with Encequidar tablets in adult patients with tumours.
The main questions it aims to answer are:
* The effect of food and fasting on absorption of oral paclitaxel when combined with Encequidar tablets
* Assessment of safety and tolerability of oral paclitaxel when combined with Encequidar tablets
Participants will take Encequidar and oral paclitaxcel with a 1-hour space in between, either after an overnight fast of 10hours or after a meal three days in a row. After 10 days participants that received paclitaxel after fasting will receive the same medicine in the same way after a meal and vice versa. Some participants can elect to take part in the third part of the study which involves taking both paclitaxel and encequidar at the same time after a meal.
Participants will
\- For parts 1,2 and 3 participants will stay at the clinic from the day before the study starts until day 4 to receive the medicine and participate in checkups and tests. Participants will then visit the clinic on day 6 and 8 for further checkups and tests