Maintenance of Effect of Duloxetine in Patients With Diabetic Peripheral Neuropathic Pain (DPNP)

Maintenance of Effect of Duloxetine 60 mg Once Daily in Patients With Diabetic Peripheral Neuropathic Pain

To determine if duloxetine 60 mg once daily can work up to 6 months in treating pain from Diabetic Neuropathy.

Inclusion Criteria:

• Have pain due to bilateral peripheral neuropathy caused by Type I or Type II diabetes with the pain beginning in the feet and present for at least 6 months.
• May not be pregnant and agree to utilize medically acceptable and reliable means of birth control during participation in the study.
• Score of 4 or greater on the Brief Pain Inventory on the 24-hour average pain item.

Exclusion Criteria:

• History of substance abuse or dependence within the past year, excluding nicotine and caffeine.
• Serious or unstable cardiovascular, hepatic (acute liver injury such as hepatitis or severe cirrhosis),kidney, respiratory, or blood disorder, seizure disorder, problems with peripheral vascular disease, or other medical conditions or psychiatric conditions that would hinder your participation or be likely to lead to hospitalization during the course of the study.
• Taking monoamine oxidase inhibitor (MAOI) within 14 days of starting the study or the potential need to take during or within 5 days after discontinuation from the study.
• Treatment with fluoxetine within 30 days of starting the study.
• Unstable blood sugar control and uncontrolled or poorly controlled hypertension.