Effect of Highly Bioavailable Curcumin on Subjective Tinnitus

  • End date
    Dec 31, 2025
  • participants needed
  • sponsor
    Ascension South East Michigan
Updated on 14 April 2022
sensorineural hearing loss


This study will assess the effectiveness of highly bioavailable curcumin in suppressing subjective tinnitus based on pre- and post-treatment evaluations using the validated Tinnitus Functional Index (TFI) and Tinnitus Handicap Inventory (THI) surveys.


Subjects with severe, subjective tinnitus due to sensorineural hearing loss will complete both TFI and THI surveys prior to starting therapy. Subjects will then be randomized to a treatment or placebo group. The treatment group will be provided with a supply of capsules containing 500 mg of curcumin-phosphatidylcholine combined with 250 mg of boswellia-phosphatidylcholine, which increases curcumin bioavailability. Subjects in the treatment arm will be instructed to take 1 capsule by mouth twice daily for 30 days. Placebo group subjects will be provided with a placebo compound with instructions to take the same number of capsules by mouth for the same period of time. Both the active compound and the placebo will be provided by Smartceuticals, Inc (910 W. Van Buren St. Ste 100-376 Chicago, IL 60607) to the outpatient pharmacy at Ascension Providence Park (Novi, MI), which will be responsible for storage, distribution and tracking. After 30 days, patients will be asked to return bottles to the pharmacy with any unused capsules to confirm and monitor compliance. Placebo and active agent capsules and bottles will be identical in appearance with the exception of a unique alphanumeric code on the bottle label that identifies whether the distributed capsules contain active agent or placebo. This code will be matched to the participating subject by the pharmacy and will be used at the end of the study to determine which treatment arm each subject was in. To facilitate blinding, the master list of alphanumeric codes will be maintained by the manufacturer. At the completion of therapy, subjects from both groups will re-take the TFI and THI.

Condition Tinnitus, Subjective
Treatment Placebo Capsule, Curcumin-phosphatidylcholine
Clinical Study IdentifierNCT04800107
SponsorAscension South East Michigan
Last Modified on14 April 2022


Yes No Not Sure

Inclusion Criteria

Adults with subjective tinnitus due to sensorineural hearing loss as determined by routine audiogram

Exclusion Criteria

Adults with subjective tinnitus due to another cause
Sensitivity or allergy to test compounds
Use of other off-label medications, substances, treatments specifically for tinnitus mitigation (e.g., anti-depressant/anxiety medications, GABA-inhibitors, psychiatric-based interventions/counseling)
Patients taking anticoagulants to minimize risk of drug-drug interactions
Clear my responses

How to participate?

Step 1 Connect with a study center
What happens next?
  • You can expect the study team to contact you via email or phone in the next few days.
  • Sign up as volunteer  to help accelerate the development of new treatments and to get notified about similar trials.

You are contacting

Investigator Avatar

Primary Contact


Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

Learn more

If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

Learn more

Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

Learn more

Similar trials to consider


Browse trials for

Not finding what you're looking for?

Every year hundreds of thousands of volunteers step forward to participate in research. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.

Sign up as volunteer

user name

Added by • 



Reply by • Private

Lorem ipsum dolor sit amet consectetur, adipisicing elit. Ipsa vel nobis alias. Quae eveniet velit voluptate quo doloribus maxime et dicta in sequi, corporis quod. Ea, dolor eius? Dolore, vel!

  The passcode will expire in None.

No annotations made yet

Add a private note
  • abc Select a piece of text from the left.
  • Add notes visible only to you.
  • Send it to people through a passcode protected link.
Add a private note