Herein are provided derivatized hyperbranched polyglycerols (“dHPGs”). The dHPG comprises a core comprising a hyperbranched polyglycerol derivatized with C1C20 alkyl chains and a shell comprising at least one hydrophilic substituent bound to hydroxyl groups of the core, wherein the hyperbranched polyglycerol comprises from about 1 to about 200 moles of the at least one hydrophilic substituent. The dHPGs are for use as agents for the delivery of a drug or other biologically active moiety to the urinary tract, the digestive tract, the airways, the vaginal cavity and cervix and the peritoneal cavity to treat indications such as cancer, which may be useful in the treatment of or the manufacture of a medicament, in the preparation, of a pharmaceutical composition for the treatment of cancer, as a pre-treatment or co-treatment to improve drug uptake in a tissue. Furthermore, there are provided methods of making dHPGs.本明細書中、癌等の適応疾患を治療するために、尿路、消化管、気道、膣腔及び頸部及び腹膜腔への、薬物又は他の生物学的に活性のある部分の送達用薬剤として使用するための誘導体化超分岐ポリグリセロール類(「dHPG類」)であって、薬剤の処理又は製造において、癌、感染症、炎症性疾患又は自己免疫疾患の治療のための医薬組成物の調製において有用であり得る、誘導体化超分岐ポリグリセロール類を提供する。組織における薬物取り込みを向上させるための、前処理又は共処理として使用するためのdHPG類も提供する。更に、dHPG類の作製方法を提供する。【選択図】なし