NCT05351333

Brief Summary

The use of the conditioning open-label placebo (COLP) paradigm will be studied as a dose extension method to lower opioid dosage in patients with spinal cord injury, polytrauma, and burn injury. The goal is to provide the same level of pain relief with a reduced opioid intake to diminish side effects as well as the risk of addiction associated with opioid treatment.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
66

participants targeted

Target at P50-P75 for not_applicable

Timeline
3mo left

Started Aug 2022

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress94%
Aug 2022Jul 2026

First Submitted

Initial submission to the registry

April 8, 2022

Completed
20 days until next milestone

First Posted

Study publicly available on registry

April 28, 2022

Completed
3 months until next milestone

Study Start

First participant enrolled

August 3, 2022

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2025

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2026

Expected
Last Updated

October 27, 2025

Status Verified

October 1, 2025

Enrollment Period

3 years

First QC Date

April 8, 2022

Last Update Submit

October 23, 2025

Conditions

Keywords

open-label placeboSpinal cord injury (SCI)opioidpain managementaddiction preventionpharmaco-behavioralrehabilitationin-patients

Outcome Measures

Primary Outcomes (1)

  • Morphine Equivalent Dose Conversion (MEDC)

    The opioid morphine equivalent conversion factor is used to standardized opioid usage having as a reference morphine as main indicator for analgesic potency.

    6 days

Secondary Outcomes (22)

  • Modified Brief Pain Inventory (BPI)

    6 days, 3 weeks, 6 weeks.

  • Numerical Opioid Side Effects (NOSE)

    6 days

  • PROMIS Pain Behavior

    6 days, 3 weeks, 6 weeks.

  • PROMIS Pain Interference

    6 days, 3 weeks, 6 weeks.

  • Patient Health Questionnaire 9 (PHQ-9)

    6 days, 3 weeks, 6 weeks.

  • +17 more secondary outcomes

Study Arms (2)

Conditioning Open-Label Placebo

EXPERIMENTAL

Days 1 to 3 will include the acquisition phase where the opioid medication will be prescribed on a schedule of 3-4 times per day and paired with an open-label placebo. Day 4 and 6 will be the evoked phase, and patients will receive only the open-label placebo pill. On day 5 the opioid medication will be re-introduced as pharmacological reinforcement.

Other: placebo

Treatment as usual

NO INTERVENTION

Patients in the standard of care group will receive their analgesic treatment through Spaulding Pharmacy as prescribed by their treating physicians. The treatment regime will include an opioid medication at the standard recommended dosage. Participants in this group will receive the treatment orally for 6 consecutive days.

Interventions

placeboOTHER

Sugar pill, with an essential-oil smell and of blue color used for conditioning.

Also known as: open-label placebo
Conditioning Open-Label Placebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Men and women aged 18 or older with traumatic and non-traumatic SCI (ASIA A-D), polytrauma, or burn injury patients from the Comprehensive Rehabilitation Program at Spaulding Rehabilitation Hospital,
  • SCI, polytrauma, or burn injury patients from the Comprehensive Rehabilitation Program at Spaulding Rehabilitation Hospital and pain of no more than five years of evolution,
  • Patients admitted to the Spaulding Comprehensive Rehabilitation Unit at Spaulding Rehabilitation Hospital,
  • Who have; above, at, or sub-lesional neuropathic pain and nociceptive pain (musculoskeletal or visceral) that is moderate or severe (average VAS scale score of 4 or greater at time of enrollment),
  • Inpatients with polytrauma (defined as having injuries that affect two or more body systems or organs) or patients with burn injuries, amputations, or post-surgical (e.g., orthopedic surgery)
  • Respiratory and hemodynamically stable,
  • With current narcotic use for pain control,
  • Narcotic usage of no more than 120 mg of morphine equivalent

You may not qualify if:

  • History of alcohol or drug dependence, as self-reported,
  • History of bipolar disorder or psychosis, as self-reported,
  • Any substantial decrease in alertness, language reception, or attention that might interfere with understanding,
  • Current usage of narcotic medication with a dosage higher than 120 mg of morphine equivalent or 80 mg of short-acting oxycodone, or 30 mg of hydromorphone
  • Current use of a ventilator,
  • Compromised medical status due to uncontrolled pathologies such as cancer, heart failure, kidney or liver insufficiency, or any other condition which jeopardizes the patient's participation in the study
  • Pregnancy or breastfeeding. Participants with pregnancy capability will be tested for pregnancy by serum human chorionic gonadotropin (hCG) test.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Spaulding Rehabilitation Hospital

Charlestown, Massachusetts, 02129, United States

Location

Related Publications (25)

  • Institute of Medicine (US) Committee on Advancing Pain Research, Care, and Education. Relieving Pain in America: A Blueprint for Transforming Prevention, Care, Education, and Research. Washington (DC): National Academies Press (US); 2011. Available from http://www.ncbi.nlm.nih.gov/books/NBK91497/

  • McCance-Katz EF. The Substance Abuse and Mental Health Services Administration (SAMHSA): New Directions. Psychiatr Serv. 2018 Oct 1;69(10):1046-1048. doi: 10.1176/appi.ps.201800281. Epub 2018 Aug 13. No abstract available.

  • Cardenas DD, Bryce TN, Shem K, Richards JS, Elhefni H. Gender and minority differences in the pain experience of people with spinal cord injury. Arch Phys Med Rehabil. 2004 Nov;85(11):1774-81. doi: 10.1016/j.apmr.2004.04.027.

  • Kaptchuk TJ, Miller FG. Placebo Effects in Medicine. N Engl J Med. 2015 Jul 2;373(1):8-9. doi: 10.1056/NEJMp1504023. No abstract available.

  • Martin WR, Eades CG, Thompson WO, Thompson JA, Flanary HG. Morphine physical dependence in the dog. J Pharmacol Exp Ther. 1974 Jun;189(3):759-71. No abstract available.

  • Colloca L, Tinazzi M, Recchia S, Le Pera D, Fiaschi A, Benedetti F, Valeriani M. Learning potentiates neurophysiological and behavioral placebo analgesic responses. Pain. 2008 Oct 15;139(2):306-314. doi: 10.1016/j.pain.2008.04.021. Epub 2008 Jun 6.

  • Doering BK, Rief W. Utilizing placebo mechanisms for dose reduction in pharmacotherapy. Trends Pharmacol Sci. 2012 Mar;33(3):165-72. doi: 10.1016/j.tips.2011.12.001. Epub 2012 Jan 25.

  • Price DD, Finniss DG, Benedetti F. A comprehensive review of the placebo effect: recent advances and current thought. Annu Rev Psychol. 2008;59:565-90. doi: 10.1146/annurev.psych.59.113006.095941.

  • Pearce JM. The placebo enigma. QJM. 1995 Mar;88(3):215-20. No abstract available.

  • Kaptchuk TJ, Friedlander E, Kelley JM, Sanchez MN, Kokkotou E, Singer JP, Kowalczykowski M, Miller FG, Kirsch I, Lembo AJ. Placebos without deception: a randomized controlled trial in irritable bowel syndrome. PLoS One. 2010 Dec 22;5(12):e15591. doi: 10.1371/journal.pone.0015591.

  • Le Bars D, Gozariu M, Cadden SW. Animal models of nociception. Pharmacol Rev. 2001 Dec;53(4):597-652.

  • Giang DW, Goodman AD, Schiffer RB, Mattson DH, Petrie M, Cohen N, Ader R. Conditioning of cyclophosphamide-induced leukopenia in humans. J Neuropsychiatry Clin Neurosci. 1996 Spring;8(2):194-201. doi: 10.1176/jnp.8.2.194.

  • Ader R, Mercurio MG, Walton J, James D, Davis M, Ojha V, Kimball AB, Fiorentino D. Conditioned pharmacotherapeutic effects: a preliminary study. Psychosom Med. 2010 Feb;72(2):192-7. doi: 10.1097/PSY.0b013e3181cbd38b. Epub 2009 Dec 22.

  • Sandler AD, Glesne CE, Bodfish JW. Conditioned placebo dose reduction: a new treatment in attention-deficit hyperactivity disorder? J Dev Behav Pediatr. 2010 Jun;31(5):369-75. doi: 10.1097/DBP.0b013e3181e121ed.

  • Perlis M, Grandner M, Zee J, Bremer E, Whinnery J, Barilla H, Andalia P, Gehrman P, Morales K, Thase M, Bootzin R, Ader R. Durability of treatment response to zolpidem with three different maintenance regimens: a preliminary study. Sleep Med. 2015 Sep;16(9):1160-8. doi: 10.1016/j.sleep.2015.06.015. Epub 2015 Jul 7.

  • Carvalho C, Caetano JM, Cunha L, Rebouta P, Kaptchuk TJ, Kirsch I. Open-label placebo treatment in chronic low back pain: a randomized controlled trial. Pain. 2016 Dec;157(12):2766-2772. doi: 10.1097/j.pain.0000000000000700.

  • Schaefer M, Harke R, Denke C. Open-Label Placebos Improve Symptoms in Allergic Rhinitis: A Randomized Controlled Trial. Psychother Psychosom. 2016;85(6):373-374. doi: 10.1159/000447242. Epub 2016 Oct 15. No abstract available.

  • Chesterton LS, Sim J, Wright CC, Foster NE. Interrater reliability of algometry in measuring pressure pain thresholds in healthy humans, using multiple raters. Clin J Pain. 2007 Nov-Dec;23(9):760-6. doi: 10.1097/AJP.0b013e318154b6ae.

  • Edwards RR, Sarlani E, Wesselmann U, Fillingim RB. Quantitative assessment of experimental pain perception: multiple domains of clinical relevance. Pain. 2005 Apr;114(3):315-319. doi: 10.1016/j.pain.2005.01.007. No abstract available.

  • Cleeland CS, Ryan KM. Pain assessment: global use of the Brief Pain Inventory. Ann Acad Med Singap. 1994 Mar;23(2):129-38.

  • Fregni F, Boggio PS, Lima MC, Ferreira MJ, Wagner T, Rigonatti SP, Castro AW, Souza DR, Riberto M, Freedman SD, Nitsche MA, Pascual-Leone A. A sham-controlled, phase II trial of transcranial direct current stimulation for the treatment of central pain in traumatic spinal cord injury. Pain. 2006 May;122(1-2):197-209. doi: 10.1016/j.pain.2006.02.023. Epub 2006 Mar 27.

  • Bryce TN, Budh CN, Cardenas DD, Dijkers M, Felix ER, Finnerup NB, Kennedy P, Lundeberg T, Richards JS, Rintala DH, Siddall P, Widerstrom-Noga E. Pain after spinal cord injury: an evidence-based review for clinical practice and research. Report of the National Institute on Disability and Rehabilitation Research Spinal Cord Injury Measures meeting. J Spinal Cord Med. 2007;30(5):421-40. doi: 10.1080/10790268.2007.11753405.

  • Long-acting Opioids for Chronic Non-cancer Pain: A Review of the Clinical Efficacy and Safety [Internet]. Ottawa (ON): Canadian Agency for Drugs and Technologies in Health; 2015 Aug 27. Available from http://www.ncbi.nlm.nih.gov/books/NBK349988/

  • The Numerical Opioid Side Effect (NOSE) Assessment Tool. Journal of Cancer Pain & Symptom Palliation, 2005. 1(3): p. 3-6.

    RESULT
  • Nielsen, S., et al., Comparing opioids: a guide to estimating oral morphine equivalents (OME) in research. National Drug and Alcohol Research Centre, University of NSW, 2014.

    RESULT

MeSH Terms

Conditions

Spinal Cord InjuriesMultiple TraumaBurnsAgnosia

Condition Hierarchy (Ancestors)

Spinal Cord DiseasesCentral Nervous System DiseasesNervous System DiseasesTrauma, Nervous SystemWounds and InjuriesPerceptual DisordersNeurobehavioral ManifestationsNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

April 8, 2022

First Posted

April 28, 2022

Study Start

August 3, 2022

Primary Completion

July 31, 2025

Study Completion (Estimated)

July 31, 2026

Last Updated

October 27, 2025

Record last verified: 2025-10

Data Sharing

IPD Sharing
Will not share

Locations