Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
120 participants
OBSERVATIONAL
2025-02-12
2030-01-01
Brief Summary
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Detailed Description
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A research staff member will contact a potential participant and provide a description of the project. Potentially eligible participants will be invited to participate in the study, which will be conducted at Washington University School of Medicine. Participants will also be provided with a written summary of or the consent form for the study. The consent will be signed electronically using Docusign e-consent process either remotely during a phone call or a video call (WUSTL Zoom) with a study staff or in person.
After confirming the inclusion criteria and signing the consent form, participants will complete a 2.5-3 hour study visit of psychophysical assessments of thermal and pressure stimuli. Participants will also complete various questionnaires including demographic, social, health, behavioral, and psychological questionnaires. For adolescents, a parent/legal guardian will be asked to assist in completing some of the health-related surveys (i.e., physical developmental survey, health survey, migraine history survey). Obstetric, gynecologic, fertility, surgical history, medications, and pain will be abstracted from the medical record and/or via health history interview. Blood, urine, and/or saliva samples will be collected for hormonal, immune, and/or genetic testing. Additional samples will be stored in a biobank for future hormonal, immune and/or genetic analyses. Participants will then complete follow-up surveys once monthly for up to 1 year after the study visit which will assess changes to their pain symptoms and treatments. All study procedures are optional, and participants can stop or not complete tests if they want.
Conditions
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Study Design
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CASE_CONTROL
PROSPECTIVE
Study Groups
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migraine
patients with migraine
Thermal stimuli
The Thermal Sensory Analyzer (TSA-II or PATHWAY platform - Medoc, Ramat Yishai, Israel) will be used to safely deliver heat and cold stimuli. These devices can deliver relatively complex stimuli via computer control. All targeted stimulus temperatures will be less than 50°C, and participants will be free to remove their arm or leg at any time from the thermode. Noxious cold stimuli will also be delivered with a plastic water container or a water bath (FISHER, USA). Participants will be free to pull out of the water bath at any time
Pressure stimuli
Pressure stimuli will be applied by using a handheld algometer (Wagner Instruments) or the Pressure Algometer (Medoc, Ramat Yishai, Israel). These devices have a round probe that allows quantifying the amount of pressure that is being applied. The Pressure Algometer allows a real-time visual feedback to control and monitor applied pressure rates. Pressure will be applied to the lower leg, volar forearm, or trapezius.
Pain ratings
Pain intensity and pain unpleasantness ratings will be assessed.
Conditioned pain modulation (CPM) response
The CPM paradigm assesses endogenous inhibitory pain modulation efficiency. CPM testing includes the application of a "test" stimulus without conditioning (control run, pressure pain thresholds) and a subsequent application of the same test stimulus together with a conditioning stimulus (conditioning run, a 60 second of foot immersion in cold water). The CPM response is the difference in the pressure pain thresholds between the control and the conditioning runs.
Hormonal assessment
Blood samples (approximately 2 tablespoons) and/or saliva and/or urine will be collected for analyses of sex hormone levels (e.g., prolactin, testosterone, estradiol).
Endometriosis
patients with endometriosis
Thermal stimuli
The Thermal Sensory Analyzer (TSA-II or PATHWAY platform - Medoc, Ramat Yishai, Israel) will be used to safely deliver heat and cold stimuli. These devices can deliver relatively complex stimuli via computer control. All targeted stimulus temperatures will be less than 50°C, and participants will be free to remove their arm or leg at any time from the thermode. Noxious cold stimuli will also be delivered with a plastic water container or a water bath (FISHER, USA). Participants will be free to pull out of the water bath at any time
Pressure stimuli
Pressure stimuli will be applied by using a handheld algometer (Wagner Instruments) or the Pressure Algometer (Medoc, Ramat Yishai, Israel). These devices have a round probe that allows quantifying the amount of pressure that is being applied. The Pressure Algometer allows a real-time visual feedback to control and monitor applied pressure rates. Pressure will be applied to the lower leg, volar forearm, or trapezius.
Pain ratings
Pain intensity and pain unpleasantness ratings will be assessed.
Conditioned pain modulation (CPM) response
The CPM paradigm assesses endogenous inhibitory pain modulation efficiency. CPM testing includes the application of a "test" stimulus without conditioning (control run, pressure pain thresholds) and a subsequent application of the same test stimulus together with a conditioning stimulus (conditioning run, a 60 second of foot immersion in cold water). The CPM response is the difference in the pressure pain thresholds between the control and the conditioning runs.
Hormonal assessment
Blood samples (approximately 2 tablespoons) and/or saliva and/or urine will be collected for analyses of sex hormone levels (e.g., prolactin, testosterone, estradiol).
migraine and endometriosis
patients with migraine and endometriosis
Thermal stimuli
The Thermal Sensory Analyzer (TSA-II or PATHWAY platform - Medoc, Ramat Yishai, Israel) will be used to safely deliver heat and cold stimuli. These devices can deliver relatively complex stimuli via computer control. All targeted stimulus temperatures will be less than 50°C, and participants will be free to remove their arm or leg at any time from the thermode. Noxious cold stimuli will also be delivered with a plastic water container or a water bath (FISHER, USA). Participants will be free to pull out of the water bath at any time
Pressure stimuli
Pressure stimuli will be applied by using a handheld algometer (Wagner Instruments) or the Pressure Algometer (Medoc, Ramat Yishai, Israel). These devices have a round probe that allows quantifying the amount of pressure that is being applied. The Pressure Algometer allows a real-time visual feedback to control and monitor applied pressure rates. Pressure will be applied to the lower leg, volar forearm, or trapezius.
Pain ratings
Pain intensity and pain unpleasantness ratings will be assessed.
Conditioned pain modulation (CPM) response
The CPM paradigm assesses endogenous inhibitory pain modulation efficiency. CPM testing includes the application of a "test" stimulus without conditioning (control run, pressure pain thresholds) and a subsequent application of the same test stimulus together with a conditioning stimulus (conditioning run, a 60 second of foot immersion in cold water). The CPM response is the difference in the pressure pain thresholds between the control and the conditioning runs.
Hormonal assessment
Blood samples (approximately 2 tablespoons) and/or saliva and/or urine will be collected for analyses of sex hormone levels (e.g., prolactin, testosterone, estradiol).
control
healthy participants with no migraine or endometriosis
Thermal stimuli
The Thermal Sensory Analyzer (TSA-II or PATHWAY platform - Medoc, Ramat Yishai, Israel) will be used to safely deliver heat and cold stimuli. These devices can deliver relatively complex stimuli via computer control. All targeted stimulus temperatures will be less than 50°C, and participants will be free to remove their arm or leg at any time from the thermode. Noxious cold stimuli will also be delivered with a plastic water container or a water bath (FISHER, USA). Participants will be free to pull out of the water bath at any time
Pressure stimuli
Pressure stimuli will be applied by using a handheld algometer (Wagner Instruments) or the Pressure Algometer (Medoc, Ramat Yishai, Israel). These devices have a round probe that allows quantifying the amount of pressure that is being applied. The Pressure Algometer allows a real-time visual feedback to control and monitor applied pressure rates. Pressure will be applied to the lower leg, volar forearm, or trapezius.
Pain ratings
Pain intensity and pain unpleasantness ratings will be assessed.
Conditioned pain modulation (CPM) response
The CPM paradigm assesses endogenous inhibitory pain modulation efficiency. CPM testing includes the application of a "test" stimulus without conditioning (control run, pressure pain thresholds) and a subsequent application of the same test stimulus together with a conditioning stimulus (conditioning run, a 60 second of foot immersion in cold water). The CPM response is the difference in the pressure pain thresholds between the control and the conditioning runs.
Hormonal assessment
Blood samples (approximately 2 tablespoons) and/or saliva and/or urine will be collected for analyses of sex hormone levels (e.g., prolactin, testosterone, estradiol).
Interventions
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Thermal stimuli
The Thermal Sensory Analyzer (TSA-II or PATHWAY platform - Medoc, Ramat Yishai, Israel) will be used to safely deliver heat and cold stimuli. These devices can deliver relatively complex stimuli via computer control. All targeted stimulus temperatures will be less than 50°C, and participants will be free to remove their arm or leg at any time from the thermode. Noxious cold stimuli will also be delivered with a plastic water container or a water bath (FISHER, USA). Participants will be free to pull out of the water bath at any time
Pressure stimuli
Pressure stimuli will be applied by using a handheld algometer (Wagner Instruments) or the Pressure Algometer (Medoc, Ramat Yishai, Israel). These devices have a round probe that allows quantifying the amount of pressure that is being applied. The Pressure Algometer allows a real-time visual feedback to control and monitor applied pressure rates. Pressure will be applied to the lower leg, volar forearm, or trapezius.
Pain ratings
Pain intensity and pain unpleasantness ratings will be assessed.
Conditioned pain modulation (CPM) response
The CPM paradigm assesses endogenous inhibitory pain modulation efficiency. CPM testing includes the application of a "test" stimulus without conditioning (control run, pressure pain thresholds) and a subsequent application of the same test stimulus together with a conditioning stimulus (conditioning run, a 60 second of foot immersion in cold water). The CPM response is the difference in the pressure pain thresholds between the control and the conditioning runs.
Hormonal assessment
Blood samples (approximately 2 tablespoons) and/or saliva and/or urine will be collected for analyses of sex hormone levels (e.g., prolactin, testosterone, estradiol).
Eligibility Criteria
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Inclusion Criteria
2. Healthy control subjects with no history of chronic pain
3. Age 12-45
4. Assigned female sex at birth
Exclusion Criteria
2. Presence of prolactinoma
3. Presence of psychiatric, neurological, endocrinological and/or developmental conditions and taking medications for these conditions
4. Current use of dopamine agonist or SSRI medications
5. For patients aged 12-17 not having a parent/legal guardian willing to sign the consent and answer surveys about their child's health
12 Years
45 Years
FEMALE
Yes
Sponsors
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Washington University School of Medicine
OTHER
Responsible Party
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Hadas Nahman-Averbuch
Assistant professor
Principal Investigators
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Hadas Nahman-Averbuch, PhD
Role: PRINCIPAL_INVESTIGATOR
Washington University School of Medicine
Locations
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Washington University School of Medicine
St Louis, Missouri, United States
Countries
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Central Contacts
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Facility Contacts
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Other Identifiers
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202405127
Identifier Type: -
Identifier Source: org_study_id
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