Pharmaceutical composition

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United States of America Patent

PATENT NO 9220773
APP PUB NO 20140004185A1
SERIAL NO

13988968

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A pharmaceutical composition for intraperitoneal delivery of an anti-neoplastic agent is provided for treating cancers associated with aberrant mucin expression, preferably ovarian cancer and pancreatic, prostate, metastatic breast, bladder and lung cancers. The composition comprises nanomicelles loaded with the anti-neoplastic agent, and antibodies such as anti-MUC16, anti-MUC1 or anti-MUC4 are conjugated to these nanomicelles. The antibody-bound nanomicelles are optionally embedded in a biodegradable pH- and thermo-responsive hydrogel capable of sol-gel transition at body temperature. The pharmaceutical composition is implantable in the peritoneum, where it transforms into a semi-solid gel at the body's core temperature. In response to pH, the hydrogel swells and releases the antibody-bound nanomicelles. The nanomicelles specifically target mucin antigens on cancer cells. The anti-mucin antibodies can be internalized by the tumor cells, enabling the drug-loaded nanomicelles to gain entry and deliver the chemotherapeutic drugs inside the tumor cell.

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Patent Owner(s)

Patent OwnerAddress
UNIVERSITY OF THE WITWATERSRAND JOHANNESBURGJOHANNESBURG SOUTH AFRICA JOHANNESBURG GAUTENG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chirwa, Nthato Johannesburg, ZA 1 2
Choonara, Yahya Essop Johannesburg, ZA 25 170
Du, Toit Lisa Claire Johannesburg, ZA 16 128
Kumar, Pradeep Johannesburg, ZA 83 2354
Pillay, Viness Johannesburg, ZA 36 310

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