Patent ID: 8840874

Claim:
A polymer comprising repeating units: wherein X is 2-hydroxypropyl; Y is a tripeptide selected from the group consisting of GGG, and GGC, wherein the amide nitrogen shown in (b) is part of the initial G residue; J is a peptide targeting moiety having the sequence of SEQ ID NO: 3, wherein J is bonded to Y at the terminal G, or C residue; Z is an antineoplastic agent comprising an acid cleavable spacer; W is an imaging agent optionally comprising a spacer; wherein between about 50% and 99.95% of the total repeating units in the polymer are (a); between 0.05% and 50% of the total repeating units in the polymer are (b), between about 0 to 50% of the total repeating units in the polymer are (c), and between 0 to 15% of the total repeating units in the polymer are (d).