Please select the eligibility criteria that correspond to the clinical trial below.
Title: Open Label Trial Concerning the Effectiveness of Trazodone in the Treatment of Fibromyalgia (Phase I) and Its Augmentation With Pregabalin in Trazodone Partial Responders (Phase II)
Brief Summary: The study has a double purpose: a first phase intends to assess the effectiveness and tolerability of trazodone, an antidepressant with sedative and sleep-promoting properties, in the treatment of fibromyalgia; a second phase intends to evaluate if the addition of pregabalin to patients who have shown a partial response to trazodone additionally improves fibromyalgia symptomatology.


Options:
A: Inclusion Criteria:

* Patients must meet the ACR criteria for fibromyalgia (ie, widespread pain present for at least 3 months, and pain in at least 11 of 18 specific tender point sites.
* Patients must have a score of \>40 mm on the Visual Analog Scale

Exclusion Criteria:

* Patients with any widespread inflammatory musculoskeletal disorders, widespread rheumatic diseases other than fibromyalgia, active infections, or untreated endocrine disorders.
B: Inclusion Criteria:

* patients diagnosed of fibromyalgia according to the American College of Rheumatology criteria
* written, informed consent
* able to understand and comply with the requirements of the study

Exclusion Criteria:

* pregnancy or breastfeeding
* unwillingness to discontinue other prescribed medications before entering in the study
* patients who had previously received trazodone without improvement or who did not tolerate the drug
* patients who had previously received pregabalin without improvement or who did not tolerate the drug (only for the phase II of the study)
C: Inclusion criteria:

* Meet the American College of Rheumatology criteria for Fibromyalgia diagnosis;
* On no medication for Fibromyalgia other than acetaminophen, or willing to stop all such medication for the duration of the study

  * Willing to stop all FMS medication for the duration of the study or be on a stable dose of such medication for at least 3 months

Exclusion criteria:

* Other concurrent medical conditions such as rheumatologic disease, chronic infection, untreated endocrine disorders, unstable seizures, psychiatric disorders, acute peptic ulcer disease, congestive heart failure, chronic liver disorders and/or bleeding problems

  * Allergy to thiamin
* Unwilling to stop vitamin supplementation for the duration of the study

  * PLEASE NOTE: Travel to and accomodations at the study site can NOT be compensated. Anyone wishing to travel from outside of the study site's geographic area must do so at their own risk and expense.
D: Inclusion Criteria:

* Women 18-65 years old
* Fibromyalgia according to the criteria of the American College of Rheumatology (Wolfe 2010)
* Sign the informed consent
* Patients can take medication for chronic pain ( antidepressants , antiepileptics, for example), since there are at least two months

Exclusion criteria:

* patients who did not understand the Portuguese
* diagnosis of malignancies, severe psychiatric disorders , sleep disorders not related to fibromyalgia (apnea , sleepwalking , restless leg syndrome), Alzheimer's disease or any disease (rheumatologic, neurological, etc.) that can modify the evaluations or outcomes
* alcohol abuse or drug addiction
* patients who are performing acupuncture
* BMI greater than 35 ( BMI = body mass index) .
* Patients with history of allergy to amitriptyline or/and melatonin or any other contraindication for the use of these drugs

Answer: B