Primary Outcome Measures:
- To assess the response rate of ABT-510 (thrombospondin) in patients with advanced head and neck cancer [ Time Frame: Radiologic Assessment after every 2 cycles ] [ Designated as safety issue: No ]
- To investigate the effect on endothelial cell apoptosis by ABT-510 (thrombospondin) in advanced head and neck cancer patient [ Time Frame: baseline, day 28 (pre-dose),at week 8 (pre-dose), and at final visit. ] [ Designated as safety issue: No ]
Secondary Outcome Measures:
- To describe the effect of ABT-510 (thrombospondin) on downstream biologic targets including VEGF-R, p53 and apoptosis [ Time Frame: baseline, day 28 (pre-dose), at week 8 (pre-dose), and at final visit. ] [ Designated as safety issue: No ]
- To assess the pharmacokinetic/pharmacodynamic profile of ABT-510 (thrombospondin) in advanced head and neck cancer patients [ Time Frame: baseline, day 28 (pre-dose), at week 8 (pre-dose), and at final visit. ] [ Designated as safety issue: No ]
- To assess the imaging characteristics of ABT-510 (thrombospondin) in advanced head and neck cancer patients [ Time Frame: Radiologic assessment following every 2 cycles ] [ Designated as safety issue: No ]
- To assess the toxicity and tolerability of ABT-510 (thrombospondin) [ Time Frame: Routine PE weekly during the first 4 weeks, at day 56, at end of study. ] [ Designated as safety issue: No ]
This is a phase Ib/II, single-center, open-label study designed to assess the safety, tolerability, pharmacokinetics, and biologic efficacy of ABT-510 (thrombospondin). Participants will be patients with incurable head and neck cancer.
Patients will begin at a fixed dose level of thrombospondin subcutaneously twice daily. Cycles of treatment are 28 days (4 weeks). Patients will be treated with thrombospondin until progression of tumor or toxicity.