NK-ORB Expression of Mu Receptor on Lymphocytes in Rehabilitation
NK-ORB
Employment of Natural Killer Opioid Receptor as a Biomarker to Ameliorate the Efficacy of the Rehabilitation Program in a Patient-oriented Strategy
NK-ORB
Employment of Natural Killer Opioid Receptor as a Biomarker to Ameliorate the Efficacy of the Rehabilitation Program in a Patient-oriented Strategy
Sponsor study identifier
observational
50
1 country
1
Study Start
October 3, 2023
Actual (reported)Primary Completion
July 31, 2025
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
April 29, 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Chronic pain is a serious disorder that causes physical suffering and emotional distress. NK cells are cytotoxic granular cells playing a crucial role in innate immunity. Recent studies described modulation of the percentage of B lymphocytes and NK cells expressing the μ opioid receptor as a potential marker for measuring pain. Neuropathic pain sufferers have decreased NK cell function, highlighting the need of further investigating the effect of opioid receptor expression on lympoid cells defining their potential relevance as a pain monitor marker. Opioid receptors expressed on NK, B and T cells are a possible candidate for objective monitoring of pain in patients.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
April 29, 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
October 3, 2023
Actual (reported)June 10, 2024
Actual (reported)June 13, 2024
Actual (reported)July 31, 2025
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
April 29, 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Identification of percentage of Mu-positive NK cells as predictive markers of pain in suffering patients
Peripheral blood of pain suffering patients who have entered a neurorehabilitation program will be investigated to confirm the modulation of the percentage of Mu-positive NK cells and to evaluate if they could be eligible as predictive markers of chronic pain by correlating it to the level of pain calculated with Numeric Pain Rating Scale.
3 weeks
subjects with NRS\<5
patients with NRS\>5
3-weeks rehabilitation in hospital
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
* Experimental group, patients who have an NRS \>5; * Control group, patients who have an NRS \<5.
IRCCS San Raffaele
Roma, 00163, Italy
Peripheral blood samples from patients in EDTA
First Submitted
June 10, 2024
First Posted
June 13, 2024
Study Start
October 3, 2023
Actual (reported)Primary Completion
July 31, 2025
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Micronized and Ultramicronized Palmitoylethanolamide in Fibromyalgia Patients
Contact the study team to confirm eligibility.
Study Completion
April 29, 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Last Updated
June 13, 2024
Record last verified: 2024-04
Download the complete ClinicalTrials.gov record imported by Syfrah, including fields not shown in this page. The registry may contain a newer revision.
Source: ClinicalTrials.gov.
JSON downloads include source attribution and retrieval details alongside the unchanged original record or the separately normalized values.
Source retrieved: