NeuropathyNCT02208206
Analysis of Markers in the Blood Correlated With Neuropathic Pain
An observational study of Neuropathy, run by Christoph Stein, MD at 1 site in Germany.
Trial summary
The purpose of this study is to analyze associations between symptoms and specific markers in the blood in patients suffering from neuropathic pain linked to diseases of different origin. Such markers could be utilized in the future for precise diagnosis of neuropathic pain and might lead to targeted pain treatment. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Neuropathy
- How many people
- 50 participants
- Where
- 1 siteGermany
- Study dates
- Jul 2014to Jan 2019
- Phase
- Observational
- 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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Hospitals, primary care clinics, resident physicians
Who may be able to join
- HIV-associated neuropathy
- Sufficient knowledge of the German language
Who cannot join
- Co-incident severe central nervous system diseases
- Major psychiatric conditions
- Dementia
- Limited mental capacity or limited German language skills
- Intoxication with alcohol or recreational drugs within the last 48 hours of the study
Trial locations and contacts
1 site in 1 country.
Germany1 site
Department of Anesthesiology and Operative Intensive Care Medicine, Charité - Universitätsmedizin Berlin
Berlin, 12203
About this study
Official title: Neuropathic Pain: Association Between Phenotype and Biomarkers
The purpose of this study is to analyze associations between symptoms and specific markers in the blood in patients suffering from neuropathic pain linked to diseases of different origin. Such markers could be utilized in the future for precise diagnosis of neuropathic pain and might lead to targeted pain treatment.
Read the detailed description
On average, 3-8% of the German population suffers from neuropathic pain, which can occur after damage of somatosensory nerves in the peripheral or central nervous system. In terms of a "personalized" medicine, only a strict separation of neuropathic and chronic pain allows an individualized therapy to reduce pain severity and to enhance patients' quality of life.
Currently, the diagnosis of neuropathic pain is based on the medical history, the subjective description of somatosensory symptoms and the application of (non-genetic) diagnostic tests. To improve diagnosis and therapy of complex disorders for individual patients, novel methods are introduced based on flow cytometric (FACS) analysis of human immune cells or analysis of the human genome (genomics). Those techniques can support the identification of characteristic features indicating ongoing individual pathophysiologic processes in the body (biomarkers).
Often diseases are based on a complex relationship between genetics, environmental factors and the manifestation of the disease. To capture this complexity via genomics, phenotypical and genotypical data of high quality and detailed information about the study population are required.
This observational study includes patients suffering from painful and non-painful neuropathies associated with HIV-infection, diabetes mellitus and breast cancer. With the targeted application of validated questionnaires (such as the Brief Pain Inventory, Pain Catastrophizing Scale, Hospital Anxiety and Depression Scale, Ten-Item Personality Inventory, 36-Item Short Form Health Survey, and the Insomnia Severity Index) and parallel usage of genomics or FACS analysis of selected biomarkers in the blood, this study will provide information about the manifestation of certain genes or immune markers which are directly correlated to the symptoms of the disease. Additional performance of neuropsychological/cognitive tests and quantitative sensory testing (QST) will enhance the phenotypic profile. Identification of potential indicators could be utilized prospectively to precisely diagnose and effectively treat neuropathic pain.
- Conditions
- Neuropathy
- Keywords
- Neuropathic pain, Phenotype, Genotype, Biomarkers, HIV, Diabetes mellitus, Breast cancer, Genomics, Quantitative sensory testing
- Medical subject headings
- Neuralgia, Diabetes Mellitus, Breast Neoplasms
What is being measured
The primary outcome is the main question the study is designed to answer.
Analysis of gene expression
Investigation of associations between phenotypic and genotypic data. Patients with chronic painful and non-painful neuropathy will be phenotyped in detail using validated questionnaires related to pain (Brief Pain Inventory and Numeric Rating Scale), mental health (Pain Catastrophizing Scale and Hospital Anxiety and Depression Rating Scale), personality (Ten-Item Personality Inventory) and quality of life (36-Item Short Form Health Survey and Insomnia Severity Index). Optional, a set of neuropsychological/cognitive tests and quantitative sensory testing (QST) will be performed. DNA will be isolated from patients' blood samples and analyzed for genetic variants which might have an effect on the development of neuropathic pain. Once, phenotypic and genotypic data are available they will be associated with each other with the goal to find genetic variants tied to pain phenotypes and which might serve as novel DNA biomarkers for neuropathic pain.
Measured: Assessment - 1 day
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted4 Aug 2014 (estimated)
- Study startJul 2014
- Primary completionJan 2019
- Study completionJan 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for NeuropathyStudies of the same condition, open and under way.
- 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
- Observational
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Enrolment
- 50 participants (actual)
Sponsor and investigators
- Lead sponsor
- Christoph Stein, MD
- Sponsor type
- University, hospital or other
- Collaborators
- deCODE genetics
- Responsible party
- Sponsor-investigator, Christoph Stein, MD, Charite University, Berlin, Germany
- Investigators
- Christoph Stein, Prof., Principal investigator, Department of Anesthesiology Charite
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02208206
- Sponsor's protocol ID
- NeuroPain CBF_01
- Status last verified
- Feb 2019
- First submitted
- 29 Jul 2014
- Last updated
- 6 Feb 2019
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 6 Feb 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Neuropathic Pain: Association Between Phenotype and Biomarkers
- ClinicalTrials.gov ID
- NCT02208206
- Acronym / sponsor ID
- NeuroPain CBF_01
- Conditions
- Neuropathy
- Keywords
- Neuropathic pain, Phenotype, Genotype, Biomarkers, HIV, Diabetes mellitus, Breast cancer, Genomics
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 50 participants (actual)
- Lead sponsor
- Christoph Stein, MDUniversity, hospital or other
- Collaborators
- deCODE genetics
- Study start
- Jul 2014
- Primary completion
- Jan 2019 (actual)
- Study completion
- Jan 2019 (actual)
- First posted
- 4 Aug 2014 (estimated)
- 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.
The purpose of this study is to analyze associations between symptoms and specific markers in the blood in patients suffering from neuropathic pain linked to diseases of different origin. Such markers could be utilized in the future for precise diagnosis of neuropathic pain and might lead to targeted pain treatment.
Detailed description
On average, 3-8% of the German population suffers from neuropathic pain, which can occur after damage of somatosensory nerves in the peripheral or central nervous system. In terms of a "personalized" medicine, only a strict separation of neuropathic and chronic pain allows an individualized therapy to reduce pain severity and to enhance patients' quality of life.
Currently, the diagnosis of neuropathic pain is based on the medical history, the subjective description of somatosensory symptoms and the application of (non-genetic) diagnostic tests. To improve diagnosis and therapy of complex disorders for individual patients, novel methods are introduced based on flow cytometric (FACS) analysis of human immune cells or analysis of the human genome (genomics). Those techniques can support the identification of characteristic features indicating ongoing individual pathophysiologic processes in the body (biomarkers).
Often diseases are based on a complex relationship between genetics, environmental factors and the manifestation of the disease. To capture this complexity via genomics, phenotypical and genotypical data of high quality and detailed information about the study population are required.
This observational study includes patients suffering from painful and non-painful neuropathies associated with HIV-infection, diabetes mellitus and breast cancer. With the targeted application of validated questionnaires (such as the Brief Pain Inventory, Pain Catastrophizing Scale, Hospital Anxiety and Depression Scale, Ten-Item Personality Inventory, 36-Item Short Form Health Survey, and the Insomnia Severity Index) and parallel usage of genomics or FACS analysis of selected biomarkers in the blood, this study will provide information about the manifestation of certain genes or immune markers which are directly correlated to the symptoms of the disease. Additional performance of neuropsychological/cognitive tests and quantitative sensory testing (QST) will enhance the phenotypic profile. Identification of potential indicators could be utilized prospectively to precisely diagnose and effectively treat neuropathic pain.
Study design
- Observational model
- Case-control
- Time perspective
- Cross-sectional
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Hospitals, primary care clinics, resident physicians
Key inclusion criteria (2 listed)
- HIV-associated neuropathy
- Sufficient knowledge of the German language
Key exclusion criteria (5 listed)
- Co-incident severe central nervous system diseases
- Major psychiatric conditions
- Dementia
- Limited mental capacity or limited German language skills
- Intoxication with alcohol or recreational drugs within the last 48 hours of the study
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Analysis of gene expression
Time frame: Assessment - 1 day
Investigation of associations between phenotypic and genotypic data. Patients with chronic painful and non-painful neuropathy will be phenotyped in detail using validated questionnaires related to pain (Brief Pain Inventory and Numeric Rating Scale), mental health (Pain Catastrophizing Scale and Hospital Anxiety and Depression Rating Scale), personality (Ten-Item Personality Inventory) and quality of life (36-Item Short Form Health Survey and Insomnia Severity Index). Optional, a set of neuropsychological/cognitive tests and quantitative sensory testing (QST) will be performed. DNA will be isolated from patients' blood samples and analyzed for genetic variants which might have an effect on the development of neuropathic pain. Once, phenotypic and genotypic data are available they will be associated with each other with the goal to find genetic variants tied to pain phenotypes and which might serve as novel DNA biomarkers for neuropathic pain.
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 6 Feb 2019.
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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.
Christoph Stein, Prof. principal investigator
Department of Anesthesiology Charite
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Neuropathy, run by Christoph Stein, MD at 1 site in Germany.
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 2 inclusion and 5 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 6 Feb 2019. 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 Germany. 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. 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?
Analysis of gene expression (time frame: Assessment - 1 day). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 6 Feb 2019.