Conjugates of active pharmaceutical ingredients

Abstract

The present inventions provides drug-drug conjugates, drug-porphyrin conjugates, nanoparticles of the conjugates, as well as modified nanoparticles having PEGylated exteriors or encapsulated by red blood cell vesicles. The conjugates, nanoparticles and nanocarriers are useful for treating cancers and other diseases, as well as for imaging diseased tissue or organs.

1 . A compound of Formula I:
   X-(L)-Y   wherein
 X is a hydrophilic therapeutic agent; 
 L is absent or is a linker; and 
 Y is a photo-active compound comprising a porphyrin or analog thereof, or a hydrophobic therapeutic agent, 
 where the compound is other than doxorubicin-10-hydroxycamptothecin and irinotecan-chlorambucil. 
   
     
     
         2 - 27 . (canceled) 
     
     
         28 . A nanoparticle comprising a plurality of conjugates of  claim 1 , wherein the nanoparticle comprises an interior and an exterior. 
     
     
         29 - 34 . (canceled) 
     
     
         35 . A method of preparing a nanoparticle of  claim 28 , comprising forming a reaction mixture comprising a plurality of conjugates of  claim 1  under conditions suitable for the plurality of conjugates to self-assemble and form nanoparticles. 
     
     
         36 . A method of treating a disease or condition, comprising administering to a subject in need thereof, a therapeutically effective amount of a conjugate of  claim 1 or a nanoparticle of  claim 28 , thereby treating the disease or condition. 
     
     
         37 - 41 . (canceled) 
     
     
         42 . A method of treating a disease or condition via sonodynamic therapy, comprising
 administering to a subject in need thereof, a therapeutically effective amount of a conjugate of  claim 1  or a nanoparticle of  claim 28 ; and   exposing the subject to a sonic wave, thereby treating the disease via sonodynamic therapy.   
     
     
         43 . A method of imaging a tissue or organ, comprising
 administering to a subject to be imaged, an effective amount of a conjugate of  claim 1  or a nanoparticle of  claim 28 , such that the conjugate or nanoparticle concentrates in the tissue or organ; and   imaging the tissue or organ using a suitable device.   
     
     
         44 . A method of detecting a tumor in a subject, comprising
 administering to the subject an effective amount of a conjugate of  claim 1  or a nanoparticle of  claim 28 ;   exposing the subject to radiation at a first wavelength; and   detecting any emitted radiation from the conjugate or nanoparticle, thereby detecting the tumor.   
     
     
         45 . A system comprising a conjugate of  claim 1 , and a laser.