PTK787 in Refractory or Relapsed Diffuse Large Cell Lymphoma

PTK787 - 1250mg p.o. daily. Initial dose of 750mg p.o daily starting on day 1 and increased weekly to an intermediate dose of 1000 mg and then a target dose of 1250mg unless a grade ≥ 2 toxicity. Patients who tolerate the study target dose of 1250mg will remain on that dose until study completion at 12 months or until disease progression, unacceptable toxicity, withdrawal of consent or patient non-compliance with the protocol requirement.