Correlated Drug Terms (2)

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	Name (Synonyms)	Correlation
drug791	Doxycycline Wiki	0.50
drug1822	Placebo Wiki	0.06

Correlated MeSH Terms (1)

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	Name (Synonyms)	Correlation
D059350	Chronic Pain NIH	0.41

Correlated HPO Terms (1)

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	Name (Synonyms)	Correlation
HP:0012532	Chronic pain HPO	0.41

Primary Outcomes

Description: To measure the levels of anxiety and depression Hospital Anxiety and Depression Scale (HADS), will be used. Patients have to score 14 opinions. Seven of the items relate to anxiety and seven relate to depression. A cut-off point of 8/21 for anxiety or depression has been recommended.

Measure: Anxiety and Depression

Time: Change From Baseline in HADS at 40 days

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Description: To measure quality of life, EQ-5D-3L will be used. The EQ-5D-3L essentially consists of 2 pages: the EQ-5D descriptive system and the EQ visual analogue scale (EQ VAS). The EQ-5D-3L descriptive system comprises the following five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 3 levels: no problems, some problems, and extreme problems. The patient is asked to indicate his/her health state by ticking the box next to the most appropriate statement in each of the five dimensions. This decision results into a 1-digit number that expresses the level selected for that dimension. The digits for the five dimensions can be combined into a 5-digit number that describes the patient's health state.

Measure: Quality of Life and overall health

Time: Change From Baseline in EQ-5D-3L at 40 days

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Description: The Numeric Pain Rating Scale (NPRS) is a unidimensional measure of pain intensity in adults and it will be used in the current study. The most commonly used is the 11-item NPRS. The 11-point numeric scale ranges from '0' representing one pain extreme (e.g. "no pain") to '10' representing the other pain extreme (e.g. "pain as bad as you can imagine" or "worst pain imaginable").The NPRS is a valid and reliable scale to measure pain intensity. In this study, will rate current pain intensity and mean pain intensity during the past 7 days.

Measure: Pain Intensity

Time: Change From Baseline in NPRS Scores at 40 days

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Secondary Outcomes

Description: The Pittsburgh Sleep Quality Index (PSQI) is an effective instrument used to measure the quality and patterns of sleep in the older adult. PSQI will be used to assess quality and patterns of sleep in the current study. PSQI differentiates "poor" from "good" sleep by measuring seven domains: subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleep medication, and daytime dysfunction over the last month. The client self-rates each of these seven areas of sleep. Scoring of the answers is based on a 0 to 3 scale, whereby 3 reflects the negative extreme on the Likert Scale. A global sum of "5" or greater indicates a "poor" sleeper. Although there are several questions that request the evaluation of the client's bed mate or roommate, these are not scored, nor reflected in the attached instrument. An update to the scoring: if 5 is not complete or the value is missing, it now counts as a "0".

Measure: Quality and patterns of sleep

Time: Change From Baseline in PSQI Scores at 40 days

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Description: Patients' illness perceptions will be measured based on the Brief Illness Perception Questionnaire (BIPQ). The patient has to rate 8 statements on a 10-point scale (1-10). The higher the score, the greater is the extent to which the patient's illness perceptions are threatening him or her.

Measure: Patients' illness perceptions

Time: Change From Baseline in BIPQ Scores at 40 days

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Description: Disability will be assessed using Oswestry Disability Index (ODI) that present ten sections cover Pain, Personal Care, Lifting, Walking, Sitting, Standing, Sleeping, Sex Life, Social Life, and Traveling. Each section has six statements reflecting an increasing level of disability. Respondents choose the statement that most applies to them in each section. The first statement is scored 0; the second is scored 1 and so on to 5 for the last statement. The sum of the section scores is divided by 50 if all sections are completed and multiplied by 100 for the final percentage score.

Measure: Disability

Time: Change From Baseline in ODI Scores at 40 days

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HP:0012532: Chronic pain

Genes 3

TGFB2 ATXN3 FLVCR1

Protein Mutations 1

K15210D

SNP 2

rs1042713 rs12654788