An Open-Label Phase I Study to Determine the Safety, Pharmacokinetics and Pharmacodynamics of JNJ-26481585 in Subjects With Advanced Stage and/or Refractory Solid Malignancies and Lymphomas

JNJ-24681585 is a histone deacetylase (HDAC) inhibitor. It is a drug in development for treatment of cancer. In this study, the safety (the effect on the body) of the drug in patients with advanced or refractory solid malignancies or lymphoma will be studied. The maximum dose that can be tolerated by patients will be determined. The absorption, break down, and elimination of the drug will be studied and in some patients the effect of food on these processes will be examined. Antitumor activity of JNJ-26481585 will be evaluated.

JNJ-26481585 will be administered in a continuous regimen with 21-day treatment cycles. The dose of JNJ-26481585 will start low and will be increased during the study in groups of 2 to 6 patients. The dose each patient receives at study entry will not increase, but patients who receive drug at a later enrollment time may receive a higher dose. If a group of patients does not have severe side effects, the next group of patients will get a higher dose. The dose will increase until some patients have severe side effects. The dose will then be decreased to a dose level where severe side effects are observed in less than 1/3 of patients. Once a safe dose level has been determined an additional group of 12-24 patients will be treated.

The amount of JNJ-26481585 in the blood will be measured and the effect on the disease will be evaluated in all patients. In some patients, the effect of food on the absorption, break down, and elimination of the study drug will also be studied.

Patients will be screened for eligibility within 4 weeks before study treatment is given. The treatment will consist of 21-day treatment cycles in a continuous once daily dosing regimen. The duration of treatment will depend on adverse effects and whether there is benefit from the treatment. The design of a cycle may be adjusted during the course of the study to include days when there is no treatment (a pause) as guided by clinical observations. The dosing regimen may be adjusted to twice daily or three times daily intake as guided by information on how rapidly your body breaks down and eliminates the study drug. Patients will be informed if there are changes in the design of a cycle or the dosing regimen.

During the first treatment cycle, patients are required to stay in the hospital for 3 or 4 nights. In addition there are 8 or 9 daytime visits during Cycles 1 and 2 (combined) that may take up to 12 hours after the morning dose at 2 or 3 occasions and up to 4 hours after the morning dose at the other 6 occasions. From Cycle 3 onwards, there is only 1 daytime visit per treatment cycle, and these visits usually take up less time.