) Melanoma is the most malignant of skin cancers. In the USA, the incidence of melanoma is increasing more rapidly than any other cancer. Melanoma is the most frequently occurring cancer in women from the ages of 25-30, and has recently replaced leukemia as responsible for the most lost work hours in the United States. Currently there is no approved therapy that achieves more that a 20% response rate. Therefore, better therapies for malignant melanoma are urgently needed. Introgen Therapeutics is developing a novel anti-tumor gene therapeutic, Ad-mda7, and has demonstrated it's anti-tumor potential against breast and lung cancer cell lines. Here, we propose to perform proof-of-principle experiments to evaluate the efficacy of Ad-mda7 in melanoma. Growth inhibition studies will be performed using human melanoma cell lines in vitro and, if successful, will progress to evaluate Ad-mda7 in vivo using human melanoma xenografts. If these first aims are successful, we will test Ad-mda7 alone and in combination with conventional chemotherapeutic agents using metastatic tumor models. At the end of this Phase I STTR, we plan to have gathered the necessary efficacy data to proceed to safety studies and IND filing in a Phase II STTR, based on clinical trial testing of Ad-mda7.

Proposed Commercial Applications

Ad-mda7 is a gene therapy drug to be tested as a novel therapeutic for the treatment of malignant melanoma. Malignant melanoma is a dire skin cancer with few available treatment options. The incidence of melanoma and malignant melanoma is increasing. Approximately 41,000 people are predicted to diagnosed with melanoma this year, with more than 7,000 deaths resulting from this disease. The studies outlined here will guide the preclinical development of Ad-mda7 for melanoma. Subsequent Phase II studies will evaluate the therapeutic potential of Ad-mda7 in clinical trials with the goal of submission of a BLA to the FDA and subsequent marketing.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Small Business Technology Transfer (STTR) Grants - Phase I (R41)
Project #
5R41CA089778-02
Application #
6475797
Study Section
Special Emphasis Panel (ZCA1-SRRB-E (O1))
Program Officer
Wolpert, Mary K
Project Start
2001-07-02
Project End
2003-06-30
Budget Start
2002-07-01
Budget End
2003-06-30
Support Year
2
Fiscal Year
2002
Total Cost
$245,250
Indirect Cost
Name
Introgen Therapeutics, Inc.
Department
Type
DUNS #
City
Houston
State
TX
Country
United States
Zip Code
77030
Zheng, Mingzhong; Bocangel, Dora; Ramesh, Rajagopal et al. (2008) Interleukin-24 overcomes temozolomide resistance and enhances cell death by down-regulation of O6-methylguanine-DNA methyltransferase in human melanoma cells. Mol Cancer Ther 7:3842-51
Ekmekcioglu, Suhendan; Mumm, John B; Udtha, Malini et al. (2008) Killing of human melanoma cells induced by activation of class I interferon-regulated signaling pathways via MDA-7/IL-24. Cytokine 43:34-44
Tong, Alex W; Nemunaitis, John; Su, Dan et al. (2005) Intratumoral injection of INGN 241, a nonreplicating adenovector expressing the melanoma-differentiation associated gene-7 (mda-7/IL24): biologic outcome in advanced cancer patients. Mol Ther 11:160-72
Chada, Sunil; Bocangel, Dora; Ramesh, Rajagopal et al. (2005) mda-7/IL24 kills pancreatic cancer cells by inhibition of the Wnt/PI3K signaling pathways: identification of IL-20 receptor-mediated bystander activity against pancreatic cancer. Mol Ther 11:724-33
Chada, Sunil; Sutton, R Bryan; Ekmekcioglu, Suhendan et al. (2004) MDA-7/IL-24 is a unique cytokine--tumor suppressor in the IL-10 family. Int Immunopharmacol 4:649-67
Ekmekcioglu, Suhendan; Ellerhorst, Julie A; Mumm, John B et al. (2003) Negative association of melanoma differentiation-associated gene (mda-7) and inducible nitric oxide synthase (iNOS) in human melanoma: MDA-7 regulates iNOS expression in melanoma cells. Mol Cancer Ther 2:9-17
Ellerhorst, Julie A; Cooksley, Catherine D; Broemeling, Lyle et al. (2003) High prevalence of hypothyroidism among patients with cutaneous melanoma. Oncol Rep 10:1317-20
Ellerhorst, Julie A; Prieto, Victor G; Ekmekcioglu, Suhendan et al. (2002) Loss of MDA-7 expression with progression of melanoma. J Clin Oncol 20:1069-74
Caudell, Eva G; Mumm, John B; Poindexter, Nancy et al. (2002) The protein product of the tumor suppressor gene, melanoma differentiation-associated gene 7, exhibits immunostimulatory activity and is designated IL-24. J Immunol 168:6041-6