Process for the preparation of microspheres containing biologica

Details Process for the preparation of microspheres containing biologica Process for the preparation of microspheres containing biologica

1993-12-20

2000-05-23

Harrison, Robert H.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Particulate form

424490, 424493, 514951, 514963, A61K 952

Patent

active

060663405

ABSTRACT:
The present invention is directed to a microsphere for the controlled release of a biologically active molecule which comprises a biologically active molecule and an ester of hyaluronic acid or mixtures of said esters of hyaluronic acids, and wherein said biologically active molecule is surrounded by or adhered to said ester of hyaluronic acid, and wherein said microsphere has a diameter of between 1 .mu.m to 100 .mu.m.

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