Main

Inclusion Criteria:

- Progressive disease as defined by new or progressive lesions on CT-scan, MRI, bone
scan or by increase of PSA.

- Histologically or cytologically documented diagnosis of primary or metastatic solid
tumors or malignant lymphomas refractory to prior standard therapy or for which no
standard therapy exists. Entry will include, but is not limited to patients with
prostate and breast cancer refractory to hormone treatment, ovarian cancer, head and
neck cancer, non-small cell lung cancer, bladder cancer, colorectal cancer, kidney
cancer, malignant melanoma or malignant lymphoma. Patients who have refused standard
therapies are also eligible.

- ECOG Performance Status 0-2.

- Acceptable liver, renal and bone marrow function.

Main Exclusion Criteria:

- Prior treatment with other EG5 inhibitors.

- Antineoplastic therapy including chemotherapy, radiotherapy, endocrine therapy,
immunotherapy or use of other investigational agents within the last 2 weeks or a
longer period depending on the defined characteristics of the agents used (e.g. 6
weeks for mitomycin C or nitrosourea). Patients must have recovered from any
treatment-related toxicity (except for alopecia, fatigue and grade 1 neurotoxicity)
prior to registration.

- Patients with a history of other malignancies unless having undergone definitive
treatment more than 5 years prior to entry into the study and without evidence of
recurrent malignant disease, excluding patients with basal cell carcinoma of the
skin; superficial carcinoma of the bladder; carcinoma of the prostate with a current
PSA < 0.1 ng/ml; or cervical intraepithelial neoplasia.

- Patients with a history of significant cardiovascular, neurological, endocrine,
gastrointestinal, respiratory or inflammatory illness.

- Patients with a history of, who were treated for, or who are suspected of having,
hepatitis B, hepatitis C or HIV.