Please select the eligibility criteria that correspond to the clinical trial below.
Title: Dose Response Study of Duloxetine Versus Placebo in the Treatment of Fibromyalgia Syndrome
Brief Summary: To assess the efficacy of Duloxetine compared with placebo in the treatment of pain in patients with Fibromyalgia syndrome, with or without major depressive disorder.


Options:
A: Inclusion Criteria:

* You must have been diagnosed with Diabetic Neuropathic Pain
* Patient has an average daily pain score greater than or equal to 4 on an 11-point Likert scale, and patient or provider feel that a change from the current gabapentin therapy for pain management is warranted
* Patient is currently treated with gabapentin greater than or equal to 900 milligram/day, has been prescribed the current dose for at least 4 weeks, and has been at least 80% compliant with dosing, according to patient report
* Patient must agree not to change dose of gabapentin between Visits 1 and 2
* You must have stable glycemic control

Exclusion Criteria:

* Are judged prior to randomization to be at suicidal risk as defined by a score of 2 or greater on question 9 of the Beck Depression Inventory-II (BDI-II)
* Current diagnosis or history of hemangiosarcoma
* Patients with New York Heart Association Class III or IV symptoms of congestive heart failure
* Patients with uncontrolled narrow-angle glaucoma
* Presence of a current seizure disorder
B: Inclusion Criteria:

* Pain due to bilateral peripheral neuropathy (caused by type 1 or type 2 diabetes mellitus. Pain must begin in the feet, with relatively symmetrical onset. Daily pain should be present for more than 3 months \[assessed by questioning patient\]).
* Score of at least 4 on the 24-hour average pain severity score on an 11-point Likert scale \[on Brief Pain Inventory (BPI) Modified Short Form\] at screening and at randomization.
* Patient is currently not receiving treatment for diabetic peripheral neuropathic pain (DPNP) or was receiving treatment for DPNP, with a drug other than pregabalin or duloxetine, and completed the required washout
* Patient has never received treatment with duloxetine or pregabalin. (However, a short course of less than 15 days of treatment, at any time previously, will be allowed.)
* Stable glycemic control, as assessed by a physician investigator, and hemoglobin A1c (HbA1c) less than or equal to 12% at screening.

Exclusion Criteria:

* Have a known hypersensitivity to duloxetine or pregabalin or any of the inactive ingredients or have any contraindication for the use of duloxetine or pregabalin.
* Have uncontrolled narrow-angle glaucoma.
* Have received treatment with a monoamine oxidase inhibitor (MAOI) within 14 days prior to randomization, or have a potential need to use a MAOI during the study or within 5 days after discontinuation of study drug.
* Have received fluoxetine within 30 days prior to randomization.
* Have acute liver injury (such as hepatitis) or severe cirrhosis (Child-Pugh Class C).
* Have a serum creatinine greater than or equal to 1.5 milligram per deciliter (mg/dL) or a creatinine clearance less than 60 milliliter per minute (mL/min), at screening.
* Are judged clinically by the investigator to be at suicidal risk or as defined by a score of 2 or greater on Question 9 of the Beck Depression Inventory-II (BDI-II), at screening or randomization
* Have a historical exposure to drugs known to cause neuropathy (for example, vincristine), or a history of a medical condition, including pernicious anemia and hypothyroidism, that could have been responsible for neuropathy.
* Have pain that cannot be clearly differentiated from or conditions that interfere with the assessment of the DPNP.
* Have serious or unstable cardiovascular, hepatic, renal, respiratory or hematological illness; symptomatic peripheral vascular disease; a history of seizure disorder; or other medical (including unstable hypertension and not clinically euthyroid) or psychological conditions that, in the opinion of the investigator, would compromise participation or be likely to require hospitalization during the course of the study.
* Have received non-pharmacological treatment for pain within 14 days prior to randomization, or do not agree to abstain from non-pharmacological treatment during the study.
* Have a history of frequent and/or severe allergic reactions with multiple medications.
C: Inclusion Criteria:

* Meet criteria for primary Fibromyalgia Syndrome as defined by the American College of Rheumatology

Exclusion Criteria:

* Have any current primary Axis I diagnosis other than major depressive disorder
* Have any current or previous diagnosis of psychosis, bipolar disorder, or schizoaffective disorder
* Have any primary diagnosis of anxiety disorder within the past year (including panic disorder, agoraphobia, OCD, PTSD, GAD and social phobia)
* Have regional pain syndrome, multiple surgeries or failed back syndrome
* Have a confirmed current or previous diagnosis of rheumatoid arthritis, inflammatory arthritis, or infective arthritis, or an autoimmune disease (e.g. lupus)
D: Inclusion Criteria:

1. 18 years of age or above
2. Have a diagnosis of Diabetes mellitus for at least a year
3. Agree not to smoke whilst resident in the CRC
4. Able to understand the patient information sheet and provide written informed consent
5. Score above 12 on the LANSS
6. Have neuropathic pain of diabetic origin
7. Score above 25 on MMSE
8. Willing to withdraw, under the guidance of their diabetologist, from any current pain medication prior to their first visit to the sleep laboratory. Duration of withdrawal will be at least equivalent to 5 half-lives and will be of a relevant duration given the particular medication used.

Exclusion Criteria:

1. There is evidence of an end stage disease of a major system (hepatic, renal, respiratory, haematologic (PA), immunologic, cardiovascular, inflammatory, rheumatology, active infections, peripheral vascular disease, untreated endocrine(hypothyroid)
2. There is evidence of a recent ischaemic event
3. There is evidence of recurrent and/or severe hypoglycemia requiring assistance in last 3 years
4. Evidence of sleep pathology that would interfere with the assessment of treatment (assessed on habituation night)
5. Currently receiving treatment for malignancy
6. Suffer from seizures including epilepsy
7. There is evidence of a history of dependence on or abuse of alcohol/recreational drugs
8. Need to use a wheel chair (incompatible with studies in a sleep laboratory)
9. Involved in a clinical trial in last 3 months
10. Pregnant, lactating or inadequate contraception
11. Vision inadequate for the performance tests (as assessed at screening)
12. Colour Blind
13. Will not co-operate with study procedures
14. Will not give permission to inform GP

Answer: C