Peripheral Neuroimmune Mechanisms of Hyperthermia
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ClinicalTrials.gov Identifier: NCT05366270 |
Recruitment Status :
Recruiting
First Posted : May 9, 2022
Last Update Posted : March 10, 2023
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Condition or disease | Intervention/treatment | Phase |
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Hyperthermia Major Depressive Disorder Inflammation | Device: WBH Device: Sham | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 60 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | Subjects are randomized to Control/Sham and Intervention groups |
Masking: | Triple (Participant, Investigator, Outcomes Assessor) |
Masking Description: | Participant and clinician assessors will be blinded until study completion. The PI will only be unblinded in the event of an adverse event. |
Primary Purpose: | Basic Science |
Official Title: | Peripheral Neuroimmune Mechanisms of Hyperthermia |
Actual Study Start Date : | November 1, 2022 |
Estimated Primary Completion Date : | June 2024 |
Estimated Study Completion Date : | June 2024 |

Arm | Intervention/treatment |
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Experimental: Whole Body Hyperthermia (WBH)
A single treatment of Whole Body Hyperthermia will be administered using the Heckel Hyperthermia device. During this procedure, participants' core body temperature will be elevated to 38.5 degrees Celsius.
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Device: WBH
Hyperthermia exposure using Heckel Hyperthermia Device
Other Name: Whole Body Hyperthermia |
Sham Comparator: Sham
Under the sham condition, participants will enter the Heckel Hyperthermia device as in the active treatment condition, but will not receive the whole body hyperthermia treatment, and will instead only receive mild heating.
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Device: Sham
Sham (mild heating) using Heckel Hyperthermia Device |
- Changes in serum levels of Interleukin-6 from baseline to post-treatment [ Time Frame: baseline (pre-intervention), one hour post-intervention, 24 hours post-intervention, one week post-intervention ]Changes in serum levels of Interleukin-6 from baseline to post-treatment, measured by immunoassay
- Decreases in depressive severity, as measured by the Inventory of Depressive Symptomatology, Clinician-Rated (IDS-CR) [ Time Frame: baseline (pre-intervention), one week post-intervention, two weeks post-intervention, four weeks post-intervention ]
The Inventory of Depressive Symptomatology is a valid and reliable 30-item measure that is designed to assess severity of depression. The questions focus on neurovegetative and other depressive symptoms experienced over the past seven days. Possible values range from 0 to 84, with lower scores indicating lower depressive severity. A decrease of 50% or more in the IDS-CR score is considered to be a positive response to treatment, while a final score of 11 or less is considered typical remission.
Depressive severity will be measured at baseline and at three timepoints post-intervention using the IDS-CR.
- Decreases in depressive severity, as measured by the Symptoms of Depression Questionnaire (SDQ) [ Time Frame: baseline (pre-intervention), 24 hours post-intervention, one week post-intervention, two weeks post-intervention, four weeks post-intervention ]The Symptoms of Depression Questionnaire (SDQ) assesses irritability, anger attacks, and anxiety symptoms together with the commonly considered symptoms of depression. Depressive severity will be measured at baseline and at four timepoints post-intervention using the SDQ. Possible values range from 44 to 264, with lower scores indicating lower depressive severity.
- Changes in mental and physical functioning, as measured by the Patient Rated Outcome Measure Information System, 29-Item (PROMIS-29) [ Time Frame: baseline (pre-intervention), one week post-intervention, two weeks post-intervention, four weeks post-intervention ]The PROMIS-29 is a short form assessment containing four items from each of seven domains (Depression, Anxiety, Physical Function, Pain Interference, Fatigue, Sleep Disturbance, and Ability to Participate in Social Roles and Activities) plus one pain intensity question (0-10 numeric rating scale). Possible values range from 4 to 20, with lower scores indicating better functioning.
- Changes in mood, as measured by the Positive and Negative Affect Schedule (PANAS) [ Time Frame: baseline (pre-intervention), 24 hours post-intervention, one week post-intervention, two weeks post-intervention, four weeks post-intervention ]The Positive and Negative Affect Schedule (PANAS) is a self-report measure that is made up of two mood scales, one measuring positive affect and the other measuring negative affect. Number of items: 10-items measuring positive affect, 10-items measuring negative affect. Scoring is broken down into a positive affect score and a negative affect score; possible values range from 10 to 50, with higher positive scores indicating higher positive affect, and higher negative scores indicating higher negative affect.
- Changes to quality of life, as measured by the World Health Organization Wellbeing Index (WHO-5) [ Time Frame: baseline (pre-intervention), one week post-intervention, two weeks post-intervention, four weeks post-intervention ]The World Health Organization-Five Well-Being Index (WHO-5) is a short self-reported measure of current mental wellbeing. Possible values range from 0 to 25, with lower scores indicating lower quality of life.
- Changes to quality of life, as measured by the Quality of Life, Enjoyment, and Satisfaction Questionnaire [ Time Frame: baseline (pre-intervention), one week post-intervention, two weeks post-intervention, four weeks post-intervention ]The Quality of Life Enjoyment and Satisfaction Questionnaire is a self-report measure designed to enable investigators to easily obtain sensitive measures of the degree of enjoyment and satisfaction experienced by subjects in various areas of daily functioning. Possible values range from 14 to 70, with lower scores indicating lower quality of life.
- Reduction in perceived stress, as measured by the Perceived Stress Scale (PSS) [ Time Frame: baseline (pre-intervention), one week post-intervention, two weeks post-intervention, four weeks post-intervention ]The Perceived Stress Scale (PSS) is the most widely used psychological instrument for measuring the perception of stress. It is a measure of the degree to which situations in one's life are appraised as stressful. Items were designed to tap how unpredictable, uncontrollable, and overloaded respondents find their lives. Possible values range from 0 to 40, with lower scores indicating lower levels of perceived stress.
- Decreases in depressive severity, as measured by the Hamilton Depression Rating Scale 6-Item Self-Report (HAMD-6) [ Time Frame: baseline (pre-intervention), 24 hours post-intervention, one week post-intervention, two weeks post-intervention, four weeks post-intervention ]The Hamilton Depression Rating scale (self-report, 6-item) is specific to the core depressive symptoms of depressed mood, guilt, work and activities, psychomotor retardation, psychic anxiety, and general somatic symptoms (energy and physical pain), and it is unidimensional. Possible values range from 0 to 22, with lower scores indicating lower levels of depressive severity.

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Ages Eligible for Study: | 18 Years to 65 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Females and Males ages 18-65
- English language proficiency
- Ability to provide informed consent
- Have a current primary psychiatric diagnosis of major depressive disorder (MDD) of at least 4 weeks duration, as defined by Diagnostic & Statistical Manual, 5th Edition (DSM-5) criteria using the MINI.
- Score of ≥ 24 on the Inventory of Depressive Symptomatology - Clinician Rated (IDS-CR)
- Individuals of childbearing potential must use an acceptable form of birth control.
Exclusion Criteria:
- Pregnancy or planned pregnancy during study
- Current breastfeeding
- History of psychiatric hospitalization within the past year
- Active suicidal intent ("yes" on item 4 or 5 on the Columbia-Suicide Severity Rating Scale)
- History of bipolar disorder, psychotic disorders, eating disorders, and/or substance abuse or dependence (within the last year), as per the Mini-International Neuropsychiatric Interview (MINI)
- Meeting DSM-5 criteria at screening for current obsessive compulsive disorder
- A ≥25% drop in IDS-CR score from screen (V1) to baseline (V1b)
- Positive urine toxicology screen due to illicit drug use or other exclusionary medications. (Potential false positives will be addressed on a case-by-case basis at the discretion of the investigator)
- Serious unstable medical condition including cardiovascular, neurological, neoplastic, autoimmune, infectious or endocrine.
- Morbid obesity (BMI > 40) and/or body shape that might increase the risk of cutaneous burning from the Heckel hyperthermia device (because of truncal skin being too close to the infrared lights).
- Any history of or current diagnosis of thrombosis or thrombophilia; if it is unclear whether a subject has received this diagnosis, a signed release will be obtained to contact the subject's treating physician and obtain accurate diagnostic information. Depending on the recommendation of the treating physician, the subject may undergo appropriate testing with the treating physician to verify the diagnosis, and if the tests produce negative findings, the subject may be allowed to enter the study
- Has a history of or an increased risk for gastrointestinal perforation such as a history of diverticulitis, stomach or intestinal ulcers or abdominal pain that does not go away
- Using medication that might impact thermoregulatory capacity within 3 days of receiving WBH treatment, including: diuretics, barbiturates, beta-blockers, antipsychotic agents, anti-cholinergic agents or chronic use of antihistamines, aspirin (other than low-dose for prophylactic purposes), non-steroidal anti-inflammatory drugs (NSAIDs), systemic corticosteroids, or cytokine antagonists.
- Use of any medication that could interact in such a way as to potentiate the sedative effect of lorazepam or ondansetron, or otherwise deemed unsafe per physician judgment.
- Fever (Temp > 99) of unknown origin at the time of screen
- Breast Implants
- Unsafe cardiac status as defined by abnormal ECG reading at screening visit as determined by medical monitor, study doctor, or subject's primary care physician or cardiologist
- Claustrophobia of sufficient severity to interfere with ability to enter/remain in Heckel device
- A subject who in the opinion of the Principal Investigator would not be able to safely complete the study or would jeopardize study integrity

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05366270
Contact: Simmie Foster, MD PhD | 617-643-7427 | sfoster4@partners.org | |
Contact: Maren Nyer, PhD | 617-643-4897 | mnyer@mgh.harvard.edu |
United States, Massachusetts | |
Massachusetts General Hospital Depression Clinical & Research Program | Recruiting |
Boston, Massachusetts, United States, 02114 | |
Contact: Study Coordinator 617-724-3222 mgh-wbh@partners.org | |
Principal Investigator: Simmie Foster, MD, PhD |
Responsible Party: | Simmie L. Foster, MD, Psychiatrist, Massachusetts General Hospital |
ClinicalTrials.gov Identifier: | NCT05366270 |
Other Study ID Numbers: |
2019P001103 5K23GM129630-03 ( U.S. NIH Grant/Contract ) |
First Posted: | May 9, 2022 Key Record Dates |
Last Update Posted: | March 10, 2023 |
Last Verified: | March 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | Yes |
Depression Major Depressive Disorder Inflammation Hyperthermia Mood Disorders |
Depressive Disorder Depression Depressive Disorder, Major Inflammation Hyperthermia Fever Pathologic Processes |
Mood Disorders Mental Disorders Behavioral Symptoms Body Temperature Changes Heat Stress Disorders Wounds and Injuries |