Analgesic Treatment for Cancer Pain in South East Asia

Study Overview
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Brief Summary
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This study is planned to investigate the pain control status in cancer patients in 6 South East Asian countries through evaluation of prescription pattern of analgesics, satisfaction of pain control, quality of life and assessment of the adequacy of pain control and relationship among these factors in cancer patients with pain. Cancer pain is undermanaged and it is hoped that this study will be used as a reference for effective cancer pain management in these countries.

Official Title
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A Cross-sectional Study to Investigate the Pain Control Status in Cancer Patients in South East Asian Countries

Conditions
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Pain

Intervention / Treatment
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* Other: Patients receiving cancer pain treatment


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Adult (over 18 years) cancer patients [country variation would be accepted based on the definition of adults] Cancer has been diagnosed pathologically Out-patients with cancer pain due to cancer itself or its treatment Patients being treated with any analgesics for more than one month for the management of cancer pain at enrolment Patients who are willing to voluntarily sign the study consent form Exclusion Criteria: Patients who have had an operation for any reasons within 3 months prior to the enrolment Patients with any oncologic emergency Patients who had any interventional therapy (e.g. nerve block, neurolytic procedures) related to their cancer pain within 6 weeks of study entry Insufficient ability or willingness to cooperate Patients who are judged not suitable to participate in this study by the investigator Patients who are participating in any other interventional clinical trials for cancer treatment or supportive care

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Patients receiving cancer pain treatment<br> | Other: Patients receiving cancer pain treatment<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Prescription Pattern of Analgesics (Opioid or Non-opioid) | At Visit 1 (Day 1) which was the only visit in the study, data was collected on whether each patient was receiving only opioid, only non-opioid or both opioid and non-opioid analgesic treatments for pain control. | Day 1 | 
| Satisfaction With Patient's Pain Control as Measured by 5-point Scale Answered by Patients and Investigators | The scale used to measure a patient's satisfaction with pain control ranges from 1 to 5: Very satisfied Satisfied Acceptable Dissatisfied Very dissatisfied Patients and Investigators will each indicate their opinion on separate scales. | Day 1 | 
| Quality of Life as Measured Using EQ-5D-3L Questionnaire Answered by Patient | EQ-5D-3L summary indices were calculated using the algorithm developed based on the valuation of EQ-5D-3L health states from an adult Thai population (Tongsiri & Cairns, 2011). Applying the Thai algorithm, EQ-5D-3L summary indices range from -0.45 to 0.80, with an EQ-5D-3L summary index of 0.80 indicating the best overall health-related quality of life. | Day 1 | 
| Intensity of Pain Currently and Over Past 24 Hours as Measured by NRS Scores Indicated by Patient | Patients indicated their pain intensity using a numerical rating scale (NRS) ranging from 0 (no pain) to 10 (worst possible pain). Their current pain intensity and pain in the last 24 hours were indicated on separate scales. A higher score indicates higher pain intensity. | Past 1 day up to Day 1 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Sleep Disturbance Within Last 7 Days Assessed Using Questionnaire Answered by Patient | Patients answered yes or no to the following question: Have you had trouble sleeping due to your cancer pain within the last 7 days? | Past 7 days up to Day 1 | 
| Patient's Performance Status as Measured by Investigator's Rating on ECOG PS Scale | The Eastern Cooperative Oncology Group Performance Status (ECOG PS) scale ranges from 0 to 4: 0- Fully active, able to carry on all pre-disease performance without restriction Restricted in physically strenuous activity but ambulatory and able to carry out work of a light or sedentary nature, e.g., light house work, office work Ambulatory and capable of all self-care but unable to carry out any work activities. Up and about more than 50% of waking hours Capable of only limited self-care, confined to bed or chair more than 50% of waking hours Completely disabled. Cannot carry on any self-care. Totally confined to bed or chair A higher score indicates greater functional impairment. | Day 1 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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pain management, pain control, cancer