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Spots Global Cancer Trial Database for A Phase 2 Biomarker - Enriched Study of TH-302 in Subjects With Advanced Melanoma

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Trial Identification

Brief Title: A Phase 2 Biomarker - Enriched Study of TH-302 in Subjects With Advanced Melanoma

Official Title: A Phase 2 Biomarker - Enriched Study of TH-302 in Subjects With Advanced Melanoma

Study ID: NCT01864538

Interventions

TH-302

Study Description

Brief Summary: The primary objective of this study is to determine the response rate, duration of response,progression-free survival and overall survival of subjects with advanced melanoma treated with TH-302.

Detailed Description: Hypoxia is an independent marker of a poor prognosis for subjects with metastatic melanoma (Simonetti 2012, Lartigau 1997). Hypoxic melanoma cells are more likely to exhibit a stem-cell like phenotype with an associated increased propensity for invasion, angiogenesis, and metastasis formation compared to normoxic cells. Moreover, this phenotype is also associated with treatment resistance. TH-302, a hypoxia activated prodrug (HAP), was designed to target the hypoxic nature of tumours while having a minimal effect on normoxic tissue. TH-302 belongs to a class of alkylating agents that have significant experimental and clinical activity (Brock 1989). Preclinical data support the hypothesis that TH-302 targets hypoxic regions of tumours and is also able to kill tumour cells in normoxic regions as a result of cytotoxin diffusion, leading to significant effects on tumour growth (Meng 2011). TH-302 has been investigated in over 700 subjects with solid tumours or hematologic malignancies, including subjects with metastatic melanoma. In this subset a disease control rate of 63% (3 subjects with partial responses and 9 subjects with stable disease out of a total of 19) was observed in an early phase clinical trial of TH-302 (Weber 2010). Predictive biomarkers for response and toxicity have yet to be identified for subjects with advanced melanoma treated with TH-302. Optimal patient selection may be critical to maximize the clinical benefit. A predictive biomarker approach will be investigated to try to identify subjects most likely to benefit from TH-302. Given the hypoxia-targeting mechanism of TH- 302, it is believed that hypoxia biomarkers will be the most informative for identifying subjects likely to benefit from TH- 302; however, additional biomarkers including DNA repair biomarkers will also be investigated. In addition, this approach will also have potential to synergise with future immunotherapeutic approaches as suppressive T regulatory cells are thought to reside within hypoxic niches within the tumour microenvironment that would be amenable to targeting by TH-302.

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

The Angeles Clinic and Research Institute, Los Angeles, California, United States

UCLA, Los Angeles, California, United States

Columbia University Medical Center, New York, New York, United States

Cross Cancer Institute, Edmonton, Alberta, Canada

Juravinski Cancer Centre, Hamilton, Ontario, Canada

London Health Sciences Centre, London, Ontario, Canada

Princess Margaret Hospital, Toronto, Ontario, Canada

Contact Details

Name: Tillman Pearce, MD

Affiliation: Threshold Pharmaceuticals

Role: STUDY_DIRECTOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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