Analgesic Drug DependenceNCT03375216
Quantitative Sensory Testing in Chronic Pain Patients Undergoing Opioid Treatment and Opioid Tapering
A study testing sensory testing (Heat, cold, and pressure) and Promis Survey in people with Analgesic Drug Dependence and Sensory Deficit, run by The University of Texas Medical Branch, Galveston at 1 site in United States.
Trial summary
Few studies have used quantitative sensory tests to study the effect of chronic opioid treatment on sensation. The investigators will test chronic pain patients who are on different MEDDs, normal volunteers, and patients undergoing an opioid taper. Read more about this study
- Who is it for?
- Ages 18 to 75 yearsHealthy volunteers can take part
- Conditions the study is for
- Analgesic Drug Dependence, Sensory Deficit
- What is being tested?
- sensory testing (Heat, cold, and pressure) and Promis Survey
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 43 participants
- Where
- 1 siteUnited States
- Study dates
- 22 Dec 2017to 18 Nov 2023
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 75 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Patient age between 18 and 75
- History of chronic pain for at least 3 months
- Patients may have been selected for opioid taper by their pain physicians.
- Patients may or may not be on opioid therapy.
- They must have the ability to understand the protocol and provide voluntary, written, informed consent.
Who cannot join
- Cancer pain
- Unstable medical conditions (including but not limited to history of myocardial infarction within the past year, autoimmune diseases, uncontrolled diabetes with hemoglobin A1C of greater than 10)
- Pregnancy
- Inability to adequately answer surveys
- History of substance abuse within 5 years
- Surgery within the past month
- Surgery planned during the next six months
- Use of systemic steroids.
Trial locations and contacts
1 site in 1 country.
United States1 site
University of Texas Medical Branch
Galveston, Texas, 77555
About this study
Few studies have used quantitative sensory tests to study the effect of chronic opioid treatment on sensation. The investigators will test chronic pain patients who are on different MEDDs, normal volunteers, and patients undergoing an opioid taper. This will be the first study to perform sensory testing on patients while undergoing an opioid taper on an outpatient basis.
Read the detailed description
Death from drug overdoses reached a record high in 2014, with the majority involving an opioid. The United States government has labeled this an epidemic due to the progressive rise in opioid-involved deaths. In 2015, the Centers for Disease Control and Prevention determined that, on average, 650,000 opioid prescriptions are dispensed daily in the United States alone. It is well-documented and observed in clinical practice that patients on chronic opioid therapy will commonly require an escalation in opioid dose over time to maintain analgesia. The consequence of such escalations is the development of tolerance to opioids, along with other known adverse effects of opioids including respiratory depression, constipation, and potential for addiction. The drastic increase in opioid doses over the years has urged the CDC to release a report for primary care clinicians treating patients with chronic pain. This report provides a risk assessment and recommendations for prescribing opioids for non-cancer chronic pain. The guidelines state that careful reassessment of individual benefits must be considered when increasing doses to ≥50 morphine milligram equivalents (MME)/day, and that increases to ≥90 MME/day must be avoided, with recommendations for consultation with a specialist. Avoiding high opioid doses will also minimize the development of opioid-induced hyperalgesia, which is a paradoxical response to increases in opioid doses; these patients become increasingly sensitized to painful stimuli. While the precise mechanism of this condition remains to be elucidated, treatment includes reducing and tapering opioids. Interestingly, an article on patient-reported outcomes surveyed a group of 517 patients that revealed the higher opioid dose group to have greater pain intensity, poorer self-efficacy for managing pain, and more impairment in functioning and quality of life.
Several studies have looked at the use of various pain testing models to investigate the effects of chronic opioid therapy and changes in pain perception. A systematic review of the literature was performed to identify clinical studies incorporating measures of hyperalgesia in patients on chronic opioid therapy. This review was aimed at finding the optimal testing modality to evaluate pain threshold and tolerance to external stimuli, including mechanical (pressure, touch, injection), thermal (cold/heat), and electrical. Although the results did not reveal any one method with sufficient power, several prospective studies evaluating hyperalgesia with heat pain ratings have shown some promising results; two studies revealing significant changes in heat responses for opioid treatment groups, and one study demonstrating lower heat pain perception values following an opioid taper. The latter study is unique in that research pertaining to changes in pain sensitivity on patients following an opioid taper is lacking. Little is known at this juncture how pain thresholds change to opioid dose reductions and following completion of a taper.
The purpose of the study is to objectively measure pain threshold levels in patients without opioids, low dose opioids, high dose opioids and patients undergoing a taper from long-term opioid therapy. This study utilizes taper techniques that are commonly employed in a pain medicine practice. The innovation involves use of quantitative measures of sensitivity to evaluate patients on differing opioid doses and undergoing current taper practices.
- Conditions
- Analgesic Drug Dependence, Sensory Deficit
- Being tested
- sensory testing (Heat, cold, and pressure), Promis Survey
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
sensory testing (Heat, cold, and pressure)Behavioural
sensory threshold measurement is the point at which the participant feels pain due to either heat, cold, or pressure
Promis SurveyBehavioural
PROMIS computer adaptive survey in anxiety, depression, pain behavior, fatigue, pian interference, physical function, sleep disturbance, self efficacy
| Study group | Role | What they receive |
|---|---|---|
| taper | Active comparator | participants undergoing a taper as directed by their pain physician. Interventions include sensory testing ( heat, cold, and pressure) and PROMIS surveys. Receives: Behavioral: sensory testing (Heat, cold, and pressure); Behavioral: Promis Survey |
| non taper systemic <90 | Placebo comparator | participants on systemic opioids < 90 MEDD (morphine equivalent daily dose) and no taper Receives: Behavioral: sensory testing (Heat, cold, and pressure); Behavioral: Promis Survey |
| non taper systemic >90 | Placebo comparator | participants on systemic opioids > 90 MEDD and no taper Receives: Behavioral: sensory testing (Heat, cold, and pressure); Behavioral: Promis Survey |
| non taper intrathecal | Placebo comparator | Participants on intrathecal therapy and no taper Receives: Behavioral: sensory testing (Heat, cold, and pressure); Behavioral: Promis Survey |
| non opioids | Sham comparator | Participants on non-opioid therapy will undergo behavioral tests and PROMIS surveys Receives: Behavioral: sensory testing (Heat, cold, and pressure); Behavioral: Promis Survey |
What is being measured
The primary outcome is the main question the study is designed to answer.
Heat threshold measurements
Heat threshold measurements (degrees Celsius) will be obtained using a pen-shaped temperature probe. Tests will be performed on a designated painful and non-painful body surface. Testing will completed when patient reports numeric pain rating of 5 or greater, or at a temperature >49 degrees Celsius.
Measured: 2 years
Cold threshold measurements
Cold threshold measurements (degrees Celsius) will be obtained using a pen-shaped temperature probe. Tests will be performed on a designated painful and non-painful body surface. Testing will be completed when patient reports discomfort with cold stimulus, or if probe temperature reaches 0 degrees Celsius.
Measured: 2 years
Pressure threshold measurements
Pressure threshold measurements (Newtons) will be obtained using a hand-held algometer. Tests will be performed on a designated painful and non-painful body surface. Testing will be completed when patient reports discomfort with pressure stimulus, or if pressure exceeds 60 Newtons.
Measured: 2 years
Secondary outcomes (1)
PROMIS surveys
PROMIS (Patient-Reported Outcomes Measurement Information System) surveys will be administered at the subject's initial, halfway and end of their evaluations. These measures include topics on anxiety, depression, pain behavior, fatigue, pain interference, physical function, sleep disturbance. The results from the surveys will be aggregated and compared to other participants' responses.
Measured: 2 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 Dec 2017
- Study start22 Dec 2017
- Primary completion18 Nov 2023
- Study completion18 Nov 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (15)Papers the sponsor has linked to this study.
- Other trials for Analgesic Drug DependenceStudies of the same condition, open and under way.
- More trials run by The University of Texas Medical Branch, GalvestonThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Diagnosis
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 43 participants (actual)
Sponsor and investigators
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Denise Wilkes, MD-PhD, Principal investigator, University of Texas
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03375216
- Sponsor's protocol ID
- 17-0195
- Status last verified
- Feb 2024
- First submitted
- 5 Dec 2017
- Last updated
- 13 Feb 2024
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: no plan
Publications
Chu LF, D'Arcy N, Brady C, Zamora AK, Young CA, Kim JE, Clemenson AM, Angst MS, Clark DJ. Analgesic tolerance without demonstrable opioid-induced hyperalgesia: a double-blinded, randomized, placebo-controlled trial of sustained-release morphine for treatment of chronic nonradicular low-back pain. Pain. 2012 Aug;153(8):1583-1592. doi: 10.1016/j.pain.2012.02.028. Epub 2012 Jun 16.
PubMed 22704854Dumas EO, Pollack GM. Opioid tolerance development: a pharmacokinetic/pharmacodynamic perspective. AAPS J. 2008 Dec;10(4):537-51. doi: 10.1208/s12248-008-9056-1. Epub 2008 Nov 7.
PubMed 18989788Dyck PJ, Zimmerman IR, Johnson DM, Gillen D, Hokanson JL, Karnes JL, Gruener G, O'Brien PC. A standard test of heat-pain responses using CASE IV. J Neurol Sci. 1996 Mar;136(1-2):54-63. doi: 10.1016/0022-510x(95)00277-9.
PubMed 8815179Hooten WM, Mantilla CB, Sandroni P, Townsend CO. Associations between heat pain perception and opioid dose among patients with chronic pain undergoing opioid tapering. Pain Med. 2010 Nov;11(11):1587-98. doi: 10.1111/j.1526-4637.2010.00962.x. Epub 2010 Oct 1.
PubMed 21029354Katz NP, Paillard FC, Edwards RR. Review of the performance of quantitative sensory testing methods to detect hyperalgesia in chronic pain patients on long-term opioids. Anesthesiology. 2015 Mar;122(3):677-85. doi: 10.1097/ALN.0000000000000530.
PubMed 25437498Lee M, Silverman SM, Hansen H, Patel VB, Manchikanti L. A comprehensive review of opioid-induced hyperalgesia. Pain Physician. 2011 Mar-Apr;14(2):145-61.
PubMed 21412369Morasco BJ, Yarborough BJ, Smith NX, Dobscha SK, Deyo RA, Perrin NA, Green CA. Higher Prescription Opioid Dose is Associated With Worse Patient-Reported Pain Outcomes and More Health Care Utilization. J Pain. 2017 Apr;18(4):437-445. doi: 10.1016/j.jpain.2016.12.004. Epub 2016 Dec 18.
PubMed 27993558Pud D, Cohen D, Lawental E, Eisenberg E. Opioids and abnormal pain perception: New evidence from a study of chronic opioid addicts and healthy subjects. Drug Alcohol Depend. 2006 May 20;82(3):218-23. doi: 10.1016/j.drugalcdep.2005.09.007. Epub 2005 Oct 17.
PubMed 16229972Krishnan S, Salter A, Sullivan T, Gentgall M, White J, Rolan P. Comparison of pain models to detect opioid-induced hyperalgesia. J Pain Res. 2012;5:99-106. doi: 10.2147/JPR.S27738. Epub 2012 Apr 27.
PubMed 22570562Sullivan MD, Turner JA, DiLodovico C, D'Appollonio A, Stephens K, Chan YF. Prescription Opioid Taper Support for Outpatients With Chronic Pain: A Randomized Controlled Trial. J Pain. 2017 Mar;18(3):308-318. doi: 10.1016/j.jpain.2016.11.003. Epub 2016 Nov 28.
PubMed 27908840Suzan E, Eisenberg E, Treister R, Haddad M, Pud D. A negative correlation between hyperalgesia and analgesia in patients with chronic radicular pain: is hydromorphone therapy a double-edged sword? Pain Physician. 2013 Jan;16(1):65-76.
PubMed 23340535Wasserman RA, Hassett AL, Harte SE, Goesling J, Malinoff HL, Berland DW, Zollars J, Moser SE, Brummett CM. Pressure Pain Sensitivity in Patients With Suspected Opioid-Induced Hyperalgesia. Reg Anesth Pain Med. 2015 Nov-Dec;40(6):687-93. doi: 10.1097/AAP.0000000000000315.
PubMed 26469365Weimer MB, Hartung DM, Ahmed S, Nicolaidis C. A chronic opioid therapy dose reduction policy in primary care. Subst Abus. 2016;37(1):141-7. doi: 10.1080/08897077.2015.1129526.
PubMed 26685018Wilkes D, Martinello C, Medeiros FA, Babazade R, Hurwitz E, Khanjee N, Iyer PS, Leary P, Vadhera RB. Ultrasound-determined landmarks decrease pressure pain at epidural insertion site in immediate post-partum period. Minerva Anestesiol. 2017 Oct;83(10):1034-1041. doi: 10.23736/S0375-9393.17.11782-7. Epub 2017 Apr 11.
PubMed 28402092Wright A, Benson HAE, Will R, Moss P. Cold Pain Threshold Identifies a Subgroup of Individuals With Knee Osteoarthritis That Present With Multimodality Hyperalgesia and Elevated Pain Levels. Clin J Pain. 2017 Sep;33(9):793-803. doi: 10.1097/AJP.0000000000000458.
PubMed 27898461
Study at a glance
From the registry record, last updated by the sponsor on 13 Feb 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Quantitative Sensory Testing in Chronic Pain Patients Undergoing Opioid Treatment and Opioid Tapering
- ClinicalTrials.gov ID
- NCT03375216
- Acronym / sponsor ID
- 17-0195
- Conditions
- Analgesic Drug Dependence, Sensory Deficit
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 43 participants (actual)
- Lead sponsor
- The University of Texas Medical Branch, GalvestonUniversity, hospital or other
- Study start
- 22 Dec 2017 (actual)
- Primary completion
- 18 Nov 2023 (actual)
- Study completion
- 18 Nov 2023 (actual)
- First posted
- 15 Dec 2017 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Few studies have used quantitative sensory tests to study the effect of chronic opioid treatment on sensation. The investigators will test chronic pain patients who are on different MEDDs, normal volunteers, and patients undergoing an opioid taper. This will be the first study to perform sensory testing on patients while undergoing an opioid taper on an outpatient basis.
Detailed description
Death from drug overdoses reached a record high in 2014, with the majority involving an opioid. The United States government has labeled this an epidemic due to the progressive rise in opioid-involved deaths. In 2015, the Centers for Disease Control and Prevention determined that, on average, 650,000 opioid prescriptions are dispensed daily in the United States alone. It is well-documented and observed in clinical practice that patients on chronic opioid therapy will commonly require an escalation in opioid dose over time to maintain analgesia. The consequence of such escalations is the development of tolerance to opioids, along with other known adverse effects of opioids including respiratory depression, constipation, and potential for addiction. The drastic increase in opioid doses over the years has urged the CDC to release a report for primary care clinicians treating patients with chronic pain. This report provides a risk assessment and recommendations for prescribing opioids for non-cancer chronic pain. The guidelines state that careful reassessment of individual benefits must be considered when increasing doses to ≥50 morphine milligram equivalents (MME)/day, and that increases to ≥90 MME/day must be avoided, with recommendations for consultation with a specialist. Avoiding high opioid doses will also minimize the development of opioid-induced hyperalgesia, which is a paradoxical response to increases in opioid doses; these patients become increasingly sensitized to painful stimuli. While the precise mechanism of this condition remains to be elucidated, treatment includes reducing and tapering opioids. Interestingly, an article on patient-reported outcomes surveyed a group of 517 patients that revealed the higher opioid dose group to have greater pain intensity, poorer self-efficacy for managing pain, and more impairment in functioning and quality of life.
Several studies have looked at the use of various pain testing models to investigate the effects of chronic opioid therapy and changes in pain perception. A systematic review of the literature was performed to identify clinical studies incorporating measures of hyperalgesia in patients on chronic opioid therapy. This review was aimed at finding the optimal testing modality to evaluate pain threshold and tolerance to external stimuli, including mechanical (pressure, touch, injection), thermal (cold/heat), and electrical. Although the results did not reveal any one method with sufficient power, several prospective studies evaluating hyperalgesia with heat pain ratings have shown some promising results; two studies revealing significant changes in heat responses for opioid treatment groups, and one study demonstrating lower heat pain perception values following an opioid taper. The latter study is unique in that research pertaining to changes in pain sensitivity on patients following an opioid taper is lacking. Little is known at this juncture how pain thresholds change to opioid dose reductions and following completion of a taper.
The purpose of the study is to objectively measure pain threshold levels in patients without opioids, low dose opioids, high dose opioids and patients undergoing a taper from long-term opioid therapy. This study utilizes taper techniques that are commonly employed in a pain medicine practice. The innovation involves use of quantitative measures of sensitivity to evaluate patients on differing opioid doses and undergoing current taper practices.
Study design
- Primary purpose
- Diagnosis
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 5
| Arm | Type | Receives |
|---|---|---|
| taper | Active comparator | Behavioral: sensory testing (Heat, cold, and pressure), Behavioral: Promis Surveyparticipants undergoing a taper as directed by their pain physician. Interventions include sensory testing ( heat, cold, and pressure) and PROMIS surveys. |
| non taper systemic <90 | Placebo comparator | Behavioral: sensory testing (Heat, cold, and pressure), Behavioral: Promis Surveyparticipants on systemic opioids < 90 MEDD (morphine equivalent daily dose) and no taper |
| non taper systemic >90 | Placebo comparator | Behavioral: sensory testing (Heat, cold, and pressure), Behavioral: Promis Surveyparticipants on systemic opioids > 90 MEDD and no taper |
| non taper intrathecal | Placebo comparator | Behavioral: sensory testing (Heat, cold, and pressure), Behavioral: Promis SurveyParticipants on intrathecal therapy and no taper |
| non opioids | Sham comparator | Behavioral: sensory testing (Heat, cold, and pressure), Behavioral: Promis SurveyParticipants on non-opioid therapy will undergo behavioral tests and PROMIS surveys |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Patient age between 18 and 75
- History of chronic pain for at least 3 months
- Patients may have been selected for opioid taper by their pain physicians.
- Patients may or may not be on opioid therapy.
- They must have the ability to understand the protocol and provide voluntary, written, informed consent.
Key exclusion criteria (8 listed)
- Cancer pain
- Unstable medical conditions (including but not limited to history of myocardial infarction within the past year, autoimmune diseases, uncontrolled diabetes with hemoglobin A1C of greater than 10)
- Pregnancy
- Inability to adequately answer surveys
- History of substance abuse within 5 years
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| sensory testing (Heat, cold, and pressure)sensory threshold measurement is the point at which the participant feels pain due to either heat, cold, or pressure | Behavioural | non opioids, non taper intrathecal, non taper systemic <90, non taper systemic >90, taper |
| Promis SurveyPROMIS computer adaptive survey in anxiety, depression, pain behavior, fatigue, pian interference, physical function, sleep disturbance, self efficacy | Behavioural | non opioids, non taper intrathecal, non taper systemic <90, non taper systemic >90, taper |
Primary outcome
Heat threshold measurements
Time frame: 2 years
Heat threshold measurements (degrees Celsius) will be obtained using a pen-shaped temperature probe. Tests will be performed on a designated painful and non-painful body surface. Testing will completed when patient reports numeric pain rating of 5 or greater, or at a temperature >49 degrees Celsius.
Cold threshold measurements
Time frame: 2 years
Cold threshold measurements (degrees Celsius) will be obtained using a pen-shaped temperature probe. Tests will be performed on a designated painful and non-painful body surface. Testing will be completed when patient reports discomfort with cold stimulus, or if probe temperature reaches 0 degrees Celsius.
Pressure threshold measurements
Time frame: 2 years
Pressure threshold measurements (Newtons) will be obtained using a hand-held algometer. Tests will be performed on a designated painful and non-painful body surface. Testing will be completed when patient reports discomfort with pressure stimulus, or if pressure exceeds 60 Newtons.
1 secondary outcome
PROMIS surveys
Time frame: 2 years
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Feb 2024.
- Results publication: PubMed 22704854Chu LF, D'Arcy N, Brady C, Zamora AK, Young CA, Kim JE, Clemenson AM, Angst MS, Clark DJ. Analgesic tolerance without demonstrable opioid-induced hyperalgesia: a double-blinded, randomized, placebo-controlled trial of sustained-release morphine for treatment of chronic nonradicular low-back pain. Pain. 2012 Aug;153(8):1583-1592. doi: 10.1016/j.pain.2012.02.028. Epub 2012 Jun 16.
- Results publication: PubMed 18989788Dumas EO, Pollack GM. Opioid tolerance development: a pharmacokinetic/pharmacodynamic perspective. AAPS J. 2008 Dec;10(4):537-51. doi: 10.1208/s12248-008-9056-1. Epub 2008 Nov 7.
- Results publication: PubMed 8815179Dyck PJ, Zimmerman IR, Johnson DM, Gillen D, Hokanson JL, Karnes JL, Gruener G, O'Brien PC. A standard test of heat-pain responses using CASE IV. J Neurol Sci. 1996 Mar;136(1-2):54-63. doi: 10.1016/0022-510x(95)00277-9.
- Results publication: PubMed 21029354Hooten WM, Mantilla CB, Sandroni P, Townsend CO. Associations between heat pain perception and opioid dose among patients with chronic pain undergoing opioid tapering. Pain Med. 2010 Nov;11(11):1587-98. doi: 10.1111/j.1526-4637.2010.00962.x. Epub 2010 Oct 1.
- Results publication: PubMed 25437498Katz NP, Paillard FC, Edwards RR. Review of the performance of quantitative sensory testing methods to detect hyperalgesia in chronic pain patients on long-term opioids. Anesthesiology. 2015 Mar;122(3):677-85. doi: 10.1097/ALN.0000000000000530.
- Results publication: PubMed 21412369Lee M, Silverman SM, Hansen H, Patel VB, Manchikanti L. A comprehensive review of opioid-induced hyperalgesia. Pain Physician. 2011 Mar-Apr;14(2):145-61.
- Results publication: PubMed 27993558Morasco BJ, Yarborough BJ, Smith NX, Dobscha SK, Deyo RA, Perrin NA, Green CA. Higher Prescription Opioid Dose is Associated With Worse Patient-Reported Pain Outcomes and More Health Care Utilization. J Pain. 2017 Apr;18(4):437-445. doi: 10.1016/j.jpain.2016.12.004. Epub 2016 Dec 18.
- Results publication: PubMed 16229972Pud D, Cohen D, Lawental E, Eisenberg E. Opioids and abnormal pain perception: New evidence from a study of chronic opioid addicts and healthy subjects. Drug Alcohol Depend. 2006 May 20;82(3):218-23. doi: 10.1016/j.drugalcdep.2005.09.007. Epub 2005 Oct 17.
- Results publication: PubMed 22570562Krishnan S, Salter A, Sullivan T, Gentgall M, White J, Rolan P. Comparison of pain models to detect opioid-induced hyperalgesia. J Pain Res. 2012;5:99-106. doi: 10.2147/JPR.S27738. Epub 2012 Apr 27.
- Results publication: PubMed 27908840Sullivan MD, Turner JA, DiLodovico C, D'Appollonio A, Stephens K, Chan YF. Prescription Opioid Taper Support for Outpatients With Chronic Pain: A Randomized Controlled Trial. J Pain. 2017 Mar;18(3):308-318. doi: 10.1016/j.jpain.2016.11.003. Epub 2016 Nov 28.
- Results publication: PubMed 23340535Suzan E, Eisenberg E, Treister R, Haddad M, Pud D. A negative correlation between hyperalgesia and analgesia in patients with chronic radicular pain: is hydromorphone therapy a double-edged sword? Pain Physician. 2013 Jan;16(1):65-76.
- Results publication: PubMed 26469365Wasserman RA, Hassett AL, Harte SE, Goesling J, Malinoff HL, Berland DW, Zollars J, Moser SE, Brummett CM. Pressure Pain Sensitivity in Patients With Suspected Opioid-Induced Hyperalgesia. Reg Anesth Pain Med. 2015 Nov-Dec;40(6):687-93. doi: 10.1097/AAP.0000000000000315.
- Individual participant dataSharing planned: No. no plan
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Denise Wilkes, MD-PhD principal investigator
University of Texas
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing sensory testing (Heat, cold, and pressure) and Promis Survey in people with Analgesic Drug Dependence and Sensory Deficit, run by The University of Texas Medical Branch, Galveston at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 13 Feb 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Heat threshold measurements (time frame: 2 years). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03375216, which also lists 15 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Feb 2024.