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1. Have You Been Told You Snore? Do You Need to Lose Weight?

Johns Hopkins Medicine is conducting a research study in persons who may snore and are not currently being treated for snoring. Eligible participants must be over 60 years of age, overweight, not smoking and not regularly exercising.

All visits are free, including parking, at the Johns Hopkins Bayview Medical Center.

For more information, please call 410-550-5428, 410-550-5429 or 410-550-6997.

PI: Devon A. Dobrosielski, Ph.D.

2. Are You a Good Sleeper? Volunteers Needed for Sleep and Sensory Testing Research Study

To participate in this study, you must be a good, healthy sleeper between the ages of 18 and 48. The study includes:

  • In-person medical screening
  • Sensory testing
  • One-week diary of sleep patterns at home
  • Some overnight stays in the hospital

Participants are compensated up to $1,250.

For more information, call 410-550-7906.

PI: Michael T. Smith, Ph.D.

3. Do You Have Jaw Muscle Pain?

Researchers at Johns Hopkins are looking for female volunteers with TMJ/TMD pain to participate in a research study funded by the National Institutes of Health to investigate how sleep and unhelpful thoughts about TMD impact pain sensitivity and symptoms related to temporomandibular joint disorders (TMD). You may be eligible if you:

  • Are a female between 18-65 years of age
  • Have had jaw muscle pain for three months or more
  • Have sleep difficulties.

​The study includes:

  • A dental evaluation for TMJ/TMD
  • Completing interviews and questionnaires
  • Two ambulatory sleep studies that you can do in your own home
  • Completing sensory testing procedures
  • Eight total study visits over three months
  • One telephone follow-up three months after completing the study

Participants can earn up to $650. To find out if you're eligible to participate, please contact Mary Redding at 410-550-8099.

PI: Jennifer Haythornthwaite, M.D.

4. Do You Have Severe Sleep Apnea, But Haven’t Had Success With CPAP?

Right now, sleep specialists at Johns Hopkins Bayview are accepting participants for the THN Clinical Study. The study is evaluating THN Sleep Therapy, an investigational device that is implanted and is designed to reduce or eliminate sleep apnea episodes.

To see if you might qualify, please call 1-888-975-3370 or visit

PI: Alan R. Schwartz, M.D.

5. Do You Use CPAP For Sleep Apnea?

Researchers at Johns Hopkins are looking for looking for people who regularly use CPAP for sleep apnea to study differences in metabolism, both on and off therapy. During one visit, you will wear CPAP all night, and on another visit you will wear a nasal dilator strip instead of CPAP. We are studying changes in glucose and fat levels in the blood, and if nasal dilator strips can improve sleep apnea or metabolism.

You may be eligible to participate in this study if you:

  • Are 20-75 years old
  • Have obstructive sleep apnea (breathing pauses more than 20 times per hour)
  • Are used to sleeping comfortably with CPAP and willing to switch to nasal dilator strips for a few days
  • Do NOT have uncontrolled high blood pressure
  • Do NOT have diabetes that requires use of insulin
  • Do NOT take certain medications such as niacin or clonidine
  • Are NOT pregnant

The study includes:

  • Two overnight sleep studies in the laboratory, stopping CPAP for a few nights
  • Completion of interviews and questionnaires
  • IV placement and blood samples
  • Diabetes tests, a urine sample and a bone scan

Participants can earn up to $400. To find out if you are eligible, please contact us at 410-550-1816 and ask about the “MIIC Study."

PI: Jonathan Jun, M.D.