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Chou R, Hartung D, Turner J, et al. Opioid Treatments for Chronic Pain [Internet]. Rockville (MD): Agency for Healthcare Research and Quality (US); 2020 Apr. (Comparative Effectiveness Review, No. 229.)

Cover of Opioid Treatments for Chronic Pain

Opioid Treatments for Chronic Pain [Internet].

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Table B-1PICOTS

Key QuestionPopulationInterventionComparatorOutcome
1a, 1b

Adults (age ≥18 years) with various types of chronic pain including pregnant/breast-feeding women and patients treated with opioids for opioid use disorder

1b subgroups: (1) the specific type or cause of pain (e.g., neuropathic, musculoskeletal [including low back pain], fibromyalgia, sickle cell disease, inflammatory pain, and headache disorders); (2) patient demographics (e.g., age, race, ethnicity, gender); (3) patient comorbidities (including past or current alcohol or substance use disorders, mental health disorders, medical comorbidities and high risk for opioid use disorder)

Long- or short-acting opioids (including partial agonists and dual mechanism agents)

Exclude:

Intravenous or intramuscular administration of opioids

Placebo or no opioid therapyPain, function, and quality of life
1cAdults (age ≥18 years) with various types of chronic pain

Long- or short-acting opioids (including partial agonists and dual action medications)

Exclude:

Intravenous or intramuscular administration of opioids

Nonopioid therapies (pharmacologic [antiepileptic drugs, benzodiazepines, nonsteroidal antiinflammatory drugs, skeletal muscle relaxants, serotonin norepinephrine reuptake inhibitors, topical lidocaine, topical capsaicin, topical diclofenac, tricyclica antidepressants, acetaminophen, memantine, and cannabis] or nonpharmacologic [noninvasive])Pain, function, and quality of life; doses of opioids used
1dAdults (age ≥18 years) with various types of chronic pain

Opioids plus nonopioid interventions (pharmacologic or nonpharmacologic)

Exclude:

Intravenous or intramuscular administration of opioids

Opioids or nonopioid interventions alone, including cannabisPain, function, and quality of life, doses of opioids used
2a, 2b

Adults (age ≥18 years) with various types of chronic pain

2b subgroups: (1) the specific type or cause of pain (e.g., neuropathic, musculoskeletal [including back pain], fibromyalgia, sickle cell disease, inflammatory pain, headache disorders); (2) patient demographics; (3) patient comorbidities (including past or current substance use disorder or at high risk for opioid use disorder); (4) the dose of opioids used; (5) the mechanisms of actions of the opioids; and (6) use of sedative hypnotics

Long- or short-acting opioids (including tapentadol, buprenorphine, and tramadol) opioids

Exclude:

Intravenous or intramuscular administration of opioids

Placebo or no opioidSubstance misuse, substance use disorder and related outcomes, overdose, and other harms
2cAdults (age ≥18 years) with various types of chronic pain

Long- or short-acting opioids (including partial agonists and dual action medications)

Exclude:

Intravenous or intramuscular administration of opioids

Nonopioid therapies (pharmacologic [antiepileptic drugs, benzodiazepines, nonsteroidal antiinflammatory drugs, skeletal muscle relaxants, serotonin norepinephrine reuptake inhibitors, topical lidocaine, topical capsaicin, topical diclofenac, tricyclica antidepressants, acetaminophen, memantine, and cannabis] or nonpharmacologic [noninvasive])Substance misuse, substance use disorder and related outcomes, overdose, and other harms
2dAdults (age ≥18 years) with various types of chronic pain

Opioids plus nonopioid interventions (pharmacologic or nonpharmacologic)

Exclude:

Intravenous or intramuscular administration of opioids

Opioids or nonopioid interventions alone, including cannabisSubstance misuse, substance use disorder and related outcomes, overdose, and other harms
3aAdults (age ≥18 years) with various types of chronic painLong- or short-acting opioids (including tapentadol, buprenorphine, and tramadol)Other opioids with different dose initiation and titration strategiesPain, function, and quality of life; doses of opioids used
3bAdults (age ≥18 years) with various types of chronic painShort-acting opioidLong-acting opioidPain, function, and quality of life; risk of misuse, opioid use disorder, overdose and other harms; doses of opioids used
3cAdults (age ≥18 years) with various types of chronic painLong-acting opioidOther long-acting opioidPain, function, and quality of life; risk of misuse, opioid use disorder, and overdose and other harms; doses of opioids used
3dAdults (age ≥18 years) with various types of chronic painShort- and long-acting opioidLong-acting opioidPain, function, and quality of life; risk of misuse, opioid use disorder, overdose and other harms; doses of opioids used
3eAdults (age ≥18 years) with various types of chronic painScheduled, continuous dosingAs-needed dosingPain, function, and quality of life; risk of misuse, opioid use disorder, overdose, and other harms; doses of opioids used
3fAdults (age ≥18 years) with various types of chronic painOpioid dose escalationDose maintenance or use of dose thresholdsPain, function, and quality of life
3gAdults (age ≥18 years) with various types of chronic painOpioid rotationMaintenance of current opioid therapyPain, function, and quality of life; doses of opioids used
3hAdults (age ≥18 years) with various types of chronic pain and an acute exacerbationTreatments for acute exacerbations of chronic painOther treatments for acute exacerbations of chronic painPain, function, and quality of life
3iAdults (age ≥18 years) with various types of chronic painDecreasing opioid doses or of tapering off opioidsContinuation of opioidsPain, function, and quality of life; opiate withdrawal and other harms (including overdose, use of illicit opioids, suicidality, and anger/violence)
3jAdults (age ≥18 years) with various types of chronic painTapering protocols and strategiesOther tapering protocols or strategiesPain, function, quality of life, likelihood of opioid cessation, opiate withdrawal symptoms and other harms (including overdose, use of illicit opioids, suicidality, and anger/violence)
3kAdults (age ≥18 years) with various types of chronic painDosage of opioidOther dose of same opioidPain, function, and quality of life; risk of misuse, opioid use disorder, overdose and other harms
4aAdults (age ≥18 years) with various types of chronic painInstruments, genetic/metabolic tests for predicting risk of misuse, opioid use disorder, and overdoseReference standard for misuse, opioid use disorder, or overdose; or other benchmarksMeasures of diagnostic accuracy
4bAdults (age ≥18 years) with various types of chronic painUse of risk prediction instruments, genetic/metabolic testsUsual care or other controlMisuse, opioid use disorder, overdose and other harms
4cAdults (age ≥18 years) with various types of chronic painRisk mitigation strategies, including (1) opioid management plans, (2) patient education, (3) urine drug screening, (4) use of prescription drug monitoring program data, (5) use of monitoring instruments, (6) more frequent monitoring intervals, (7) pill counts, (8) use of abuse-deterrent formulations, (9) consultation with mental health providers when mental health conditions are present, (10) avoidance of benzodiazepine co-prescribing and (11) co-prescribing of naloxoneUsual carePain, function, quality of life, misuse, opioid use disorder, overdose and other harms (including use of illicit opioids, suicidality, and anger/violence)
4dAdults (age ≥18 years) with various types of chronic pain and opioid use disorderTreatment strategiesOther treatment strategiesPain, function, quality of life, misuse, opioid use disorder, overdose, other harms, pain, function, and quality of life

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