NCT07116421 · Vanderbilt University Medical Center
Effect of Rose Odor Exposure on Ictal Apnea
What this study is about
This study will investigate the potential benefits of rose scent in reducing the risk of Sudden Unexpected Death in Epilepsy (SUDEP) in patients with epilepsy.
View original scientific description
This study will investigate the potential benefits of rose scent in reducing the risk of Sudden Unexpected Death in Epilepsy (SUDEP) in patients with epilepsy. Participants will engage in their routine inpatient observational EEG monitoring for 24 hours followed by an additional 24 hours of observational EEG monitoring with continuous exposure to rose scent, during which an essential oil diffusor with rose scent will be placed in their hospital room. During these 48 total hours of the study, participants will wear a respiratory monitoring belt across their upper chest to measure their breathing. Potential risks include distress or discomfort when smelling the rose scent used in the study, a physical reaction to the rose scent, and discomfort or feelings of restrictiveness when wearing the respiratory monitoring belt. The total time commitment of the study is 48 consecutive hours over the course of the participants' inpatient EMU stay, during which there will be no restrictions on daily activities during the standard inpatient EMU admission except that participants must wear their respiratory belt for a majority of this 2-day period.
Interventions
DRUG
2-phenylethanol rose scent
Name: 2-phenylethanol (rose scent). Dose: 3 drops, diffused into room air over 24 hours. Frequency: Once over 24 hours. Route of administration: Essential oil diffuser. Manufactured by: The Essential Oil Company in Portland, OR. Manufacturing details: The rose scent is purified by hydrodistillation, shelf-stable, and in terms of verification of quality has been previously used in a peer-reviewed and IRB-approved study by Woo et al (2023) published in Frontiers in Neuroscience. Preparation: The Key Personnel listed in the study's IRB will prepare the rose essential oil scent by squeezing 3 drops of the product from the manufactured bottle into the essential oil compartment of the "Aroma Ace™ MINI Diffuser" essential oil diffuser, corresponding with both the rose essential oil and diffuser manufacturers' instructions for each product respectively.
Primary outcome measures
Number of ictal episodes
Time frame: 24 hours
Number of ictal episodes measured via EEG
Number of apneic episodes
Time frame: 24 hours
Number of brief cessations in breathing captured via respiratory belt
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Adult epilepsy patients over the age of 18
- Admission to the inpatient epilepsy monitoring unit (EMU) at Vanderbilt University Medical Center (VUMC)
- Undergoing observational EEG monitoring without treatment involving seizure medication changes or other interventions for at least 48 hours
Exclusion criteria
- Patients under the age of 18
- Patients receiving EEG monitoring without interventions from baseline for less than 48 hours
- Patients who are not receiving EEG monitoring as a part of their inpatient admission.
Where
- Nashville, Tennessee
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jun 11, 2026 · Source of record for eligibility and locations