luvblooms
★★  

India,
2011-05-11 16:34
(5530 d 08:50 ago)

Posting: # 7012
Views: 4,140
 

 Temozolamide 5 mg BE study for ANVISA [Regulatives / Guidelines]

Dear Members

greetings!!

It would be nice if someone can suggest me a method to evaluate the BE of 5 mg Temozolamide capsules.

Temozolamide is available in following strengths 5, 20, 100, 140, 180 and 250 mg. In our case our 20-250 mg are dose proportional and 5 mg is look alike to 100 mg.

So for ANIVSA filing we have to do a BE for 5 mg strength as well along with 250 mg. But since the prescribed dose is 250 mg/ day for the patients and with 20 mg dosage patient is required to take 11-15 capsules/day.
So higher number of capsules need to be taken in case of 5 mg dosage.

Is there any other way to do this BE study.


Luv

~A happy Soul~
Dr_Dan
★★  

Germany,
2011-05-11 17:37
(5530 d 07:47 ago)

@ luvblooms
Posting: # 7013
Views: 3,350
 

 Temozolamide 5 mg BE study for ANVISA

Dear Luv
50 capsules a 5 mg ⇒ fed study? :-D
I discussed the possibility of performing a BCS class 1 biowaiver (avoiding any in vivo study at all) but ANVISA rejected this due to the fact that biowaivers are not reflected in their guidelines.
Try to make the 5 mg dose proportional to the other strengths.
Kind regards
Dan

Kind regards and have a nice day
Dr_Dan
luvblooms
★★  

India,
2011-06-01 11:15
(5509 d 14:09 ago)

@ Dr_Dan
Posting: # 7044
Views: 3,262
 

 Temozolamide 5 mg BE study for ANVISA

Dear Dr. Dan

❝ 50 capsules a 5 mg ⇒ fed study? :-D


Even we tried to explain the same thing to ANVISA but they do not want to buzz!!!

❝ Try to make the 5 mg dose proportional to the other strengths.


That has been quite a difficult task for my formulation scientist but we still are working on that.

Thanks
Luv

~A happy Soul~
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