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| ID | Type | Description | Link |
|---|---|---|---|
| R01MH042931-02 | U.S. NIH Grant/Contract | View source |
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| Name | Class |
|---|---|
| National Institute of Mental Health (NIMH) | NIH |
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This study investigates the potential efficacy of two nonpharmacologic treatments for nonseasonal depression, bright light exposure or high-density negative air ion exposure. Treatments are self-administered at home by the patient under close clinical supervision.
Bright light exposure and high-density negative ion exposure have been designed to mimic outdoor environmental conditions and are effective in relieving symptoms of seasonal (winter) depression, but their effectiveness in treating chronic depression has not been explored.
Participants in this 10-week study will have an interview, a complete physical exam, and six one-hour appointments for progress evaluations. They will be randomly assigned to either light or high- or low-dose negative ions. Each treatment must be taken consistently for five weeks at the same time every day, after which treatment is temporarily suspended to determine whether symptoms return. Participants will then have the opportunity to try the alternate active treatment to determine which works best for them. On two occasions, participants will provide saliva samples, used to determine the level of melatonin, a hormone that becomes active at night and indicates whether a person's internal circadian clock is "in sync" with the day-night cycle or is early or late. This diagnostic test for melatonin, which is not yet readily available in medical practice, provides our research participants with unique information that can be used to optimize the timing of future treatment.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| bright light box | Active Comparator | 60 min light therapy shortly after awakening |
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| high-output negative ion generator | Active Comparator | 60 min high-density exposure shortly after awakening |
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| low-output negative ion generator | Placebo Comparator | 60 min low-density exposure shortly after awakening |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Bright light box | Device | 60-min light therapy shortly after awakening |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Depression scale score | change in score relative to baseline | 5 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| pineal melatonin onset tme | change in melatonin onset phase relative to baseline | 5 weeks |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Michael Terman | NYS Psuchiatric Institute | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Department of Psychology, Wesleyan University | Middletown | Connecticut | 06459 | United States | ||
| Columbia Presbyterian Medical Center |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 9783557 | Background | Terman M, Terman JS, Ross DC. A controlled trial of timed bright light and negative air ionization for treatment of winter depression. Arch Gen Psychiatry. 1998 Oct;55(10):875-82. doi: 10.1001/archpsyc.55.10.875. | |
| 9609674 | Background | Kripke DF. Light treatment for nonseasonal depression: speed, efficacy, and combined treatment. J Affect Disord. 1998 May;49(2):109-17. doi: 10.1016/s0165-0327(98)00005-6. |
| Label | URL |
|---|---|
| Click here for a description of environmental therapies | View source |
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| ID | Term |
|---|---|
| D019964 | Mood Disorders |
| D003866 | Depressive Disorder |
| D003863 | Depression |
| ID | Term |
|---|---|
| D001523 | Mental Disorders |
| D001526 | Behavioral Symptoms |
| D001519 | Behavior |
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| High-output negative ion generator |
| Device |
60-min high-density ion exposure shortly after awakening |
|
| Low-output negative ion generator | Device | 60-min low-density ion exposure shortly after awakening |
|
| New York |
| New York |
| 10032 |
| United States |