Clinical trial NCT01221740: Pain Assessment and Quality of Life in Back Pain Patients: Role of Milnacipran
Official title: Pain Assessment and Quality of Life in Back Pain Patients: Role of Milnacipran
Study type: INTERVENTIONAL
Overall status: WITHDRAWN
Phase: PHASE3
Conditions: Back Pain
Keywords: To show that patients with greater pain sensitivity
will show greater improvement in their symptoms
(self-reported pain intensity, mood, sleep, and
quality of life) than those with lower pain
sensitivity, based on QST, after taking milnacipran.
To compare outcome differences
(pain intensity, mood, activity interference,
sleep, and side effects) with those patients
who are either taking or not taking opioids for
their pain 10 weeks after being prescribed milnacipran.
To show that patients who are older, male,
with more medical comorbidities, greater disability,
and longer pain duration will report less improvement
(pain, mood, sleep, health-related quality of life)
and treatment satisfaction while taking milnacipran
compared with others without such characteristics.
identify patients back or neck pain
greater 6 months
QST
10 weeks
milnacipran
pain intensity
mood
activity
interference
sleep
side effects
age
gender
medical comorbidities
pain diagnosis
pain duration
disability status
Lead sponsor: Brigham and Women's Hospital
Sponsor class: OTHER
Collaborators: name: Forest Laboratories
First posted: 2010-10-15
Enrollment: 0
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: 1. To show that patients with greater pain sensitivity will show greater improvement in their symptoms (self-reported pain intensity, mood, sleep, and quality of life) than those with lower pain sensitivity, based on QST, after taking milnacipran.
2. To compare outcome differences (pain intensity, mood, activity interference, sleep, and side effects) with those patients who are either taking or not taking opioids for their pain 10 weeks after being prescribed milnacipran.
3. To show that patients who are older, male, with more medical comorbidities, greater disability, and longer pain duration will report less improvement (pain, mood, sleep, health-related quality of life) and treatment satisfaction while taking milnacipran compared with others without such characteristics.

Detailed description: Chronic pain is a costly syndrome that influences every aspect of a patient's life. Significant interference with sleep, employment, social functioning, and daily activities is common. Chronic pain patients frequently report depression, anxiety, irritability, sexual dysfunction, and decreased energy. Family roles are altered, and worries abound about financial limitations and future consequences of a restricted lifestyle. Epidemiological studies have independently documented that chronic pain is an immense international problem. Chronic pain symptoms afflict one third of the American population (more than 80 million people). Chronic pain accounts for 21% of emergency room visits and 25% of annual missed work days. When direct and indirect costs are considered, chronic pain imposes a greater economic burden than any other disease, with annual estimates up to $100 billion.

Patients will complete a number of questionnaires at baseline and undergo quantitative sensory testing (QST) as well as complete a handheld electronic diary PDA throughout the entire 10 weeks of the study. Patients will be evaluated by a physician and receive a complete history and physical. Radiological studies will be consulted to confirm diagnosis. All subjects who consent to participate in this study will be started on or converted to milnacipran if they are currently taking an SSRI, buproprion, or a TCA. This will be done over a 1 to 2 week period of gradually weaning the antidepressant and escalating milnacipran. All other adjuvant medication will remain constant through the course of the 10-week trial. Efforts will be made to recruit at least 40% of the patients (N= 24) who are not taking opioids for pain.

At the end of the study, all patients will repeat the baseline questionnaires listed above except the demographic questionnaire. They will also be asked to complete the Treatment Helpfulness Questionnaire. We will compare secondary outcome differences (treatment satisfaction and helpfulness) between patients either on or off of opioids.

Eligibility criteria: Inclusion Criteria:

* 18 years or older
* Primary diagnosis of spinal pain for at least 6 months' duration
* Average pain intensity score of 4 or greater

Exclusion Criteria:

* Current diagnosis of cancer or malignant disease
* Acute bone disease
* History of DSM-IV psychotic disorder
* Pregnancy
* Any illness judged by the PI to interfere with treatment
* Any acute condition requiring surgery
* Currently taking SNRI or MAOI

Primary outcomes:
measure: Decreased Back Pain
timeFrame: Over the course of 10 weeks
Secondary outcomes:
Other outcomes:
Locations:
city: Chestnut Hill
country: United States
facility: Brigham and Women's Hospital Pain Trials Center
state: Massachusetts
Study officials:
References: