Intravesical therapy for bladder cancer

1. A method of therapy for bladder cancer in a bladder cancer patient comprising the instillation into the bladder of said patient of a composition comprising anti-PD-L1 antibodies and/or anti-PD-1 antibodies, wherein the composition further comprises hexyl 5-ALA ester or a pharmaceutically acceptable salt thereof and wherein after instillation of said composition into the bladder of said patient the inside of said bladder is exposed to light.

2. The method according to claim 1 , wherein said composition comprises either anti-PD-L1 antibodies or anti-PD-1 antibodies.

3. The method according to claim 1 , wherein said composition comprises anti-PD-L1 antibodies and anti-PD-1 antibodies.

4. The method according to claim 1 , wherein said anti-PD-L1 antibody is MPDL3280A.

5. The method according to claim 1 , wherein said anti-PD-1 antibody is pembrolizumab or nivolumab.

6. The method according to claim 1 , wherein the composition comprises a therapeutically effective amount of anti-PD-L1 antibodies and/or anti-PD-1 antibodies.

7. The method according to claim 1 , wherein the composition is a semi-solid composition or a liquid composition.

8. The method according to claim 7 , wherein the composition is a liquid composition.

9. The method according to claim 8 , wherein the composition comprises anti-PD-L1 antibodies and/or anti-PD-1 antibodies in a liquid carrier.

10. The method according to claim 9 , wherein the liquid carrier is water or an aqueous buffer.

11. The method according to claim 7 , wherein the composition is a liquid composition comprising water, the pH of said composition is in the range of 4.5 to 7.5.

12. The method according to claim 1 , wherein the composition is instilled into the bladder through a catheter and is left in the bladder from about 20 minutes to about 3 hours.

13. The method according to claim 1 , wherein the concentration of hexyl 5-ALA ester in the composition is in the range of 0.1 to 5% by weight of the total weight of the composition or the equivalent concentration of a pharmaceutically acceptable salt of HAL.

14. The method according to claim 13 , wherein the composition is a liquid composition obtained by reconstitution of lyophilized a) anti-PD-L1 antibodies and/or anti-PD-1 antibodies and b) lyophilized hexyl 5-ALA ester or a pharmaceutically acceptable salt thereof in a liquid carrier.

15. The method according to claim 14 , wherein the liquid carrier is water or an aqueous buffer.

16. The method according to claim 13 , wherein the composition is instilled into the bladder through a catheter and is left in the bladder from about 20 minutes to about 3 hours.

17. The method according to claim 13 , wherein the inside of the bladder is exposed to white light and/or blue light and/or red light.

18. The method according to claim 17 , wherein the inside of the bladder is exposed to white light followed by blue light.

19. The method according to claim 1 , wherein said method is a neoadjuvant therapy for bladder cancer patients who are scheduled for a cystectomy or an adjuvant therapy for bladder cancer patients who undergo transurethral resection (TUR).

20. The method according to claim 13 , wherein said method is a neoadjuvant therapy for bladder cancer patients who are scheduled for a cystectomy or an adjuvant therapy for bladder cancer patients who undergo transurethral resection (TUR).