Indirect Evaluation of Lithium Level in Blood Using Non-invasive Sweat Biosensors

Tirat Carmel Mental Health Center

Status: Unknown

Conditions: Lithium Level Detection in Sweat

Treatments: Combination Product: Smartwatch with integrated Li+ sensor (provided by Spectrophon LTD)

Study type: Observational

Funder types: Other

Identifiers

NCT04186507

TiratCarmelMHC

Details and patient eligibility

About

Indirect evaluation of the accuracy and the efficacy of biosensors developed for Li+ detection in sweat.

Full description

Lithium (Li+) is one of the most widely used and studied medications for treating of Bipolar Mood Disorder, resistant cases of Major Psychiatric Disorders and especially Major Depressive Disorder.

After administration, more than 95% of administered dose of Li+ is eliminated unchanged in the urine, less than 5% - in the saliva, sweat, and feces. Up to 40% of patients that are on Li+ therapy encounter adverse effects that can be explained by drug involvement in various biochemical processes. Li+ efficacy and side effect manifestation are obviously determined by the drug concentration in blood. The optimal way to prevent manifestation of side effects is to control that Li+ serum level is within therapeutic range. A blood test is often ordered to monitor the serum level of Li+ to ensure target serum levels are reached. The available methods for blood Li+ are invasive, time consuming, and cause of discomfort for patients, yet are of a great importance as levels of drug in blood outside the therapeutic range may dramatically affect patient health. It is especially of importance for Li+ treatments it has a narrow therapeutic window - 0.6-1.5 mmol/L. Thus, there is a growing need for a reliable, comfortable, and inexpensive method for detection of Li+ in blood that can be performed easily in an in-patient setting and automatically whenever necessary without the need for a clinic visit out-patient setting.

Spectrophon LTD has developed an algorithm that allows calculation of levels of various compounds contained in sweat using standard PPG sensors with special coating and thus to estimate the levels of corresponding chemicals in the bloodstream. This algorithm has proven useful and accurate in clinical trials on detection of dehydration level, blood sodium level, and blood glucose level. We suggest that Spectrophon biosensors can be used to detect the levels of Li+ in sweat that will allow non-invasive estimation of the level of corresponding medication in blood in real-time.

Enrollment: 75 estimated patients

Sex: All

Ages: 18 to 75 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Meeting Diagnostic and Statistical Manual 5th edition (DSM-V) criteria for MDD, BMD, Schizoaffective Disorder, Schizophrenia;
• Patients must be on constant Li+ treatment or prior their first drug administration.
• Ability and willingness to sign an informed consent form for participation in the study.

Exclusion criteria

• Evidence of serious disorder;
• Unstable chronic disease;
• Kidney disease
• Pregnancy;
• Contraindication for Li+ treatment.

Trial design

75 participants in 2 patient groups

Prelaminary group

Description:

To confirm that Li+ is detectable in sweat .

Spectrophon LTD biosensors for Li+ detection in sweat

Description:

In this group will be conducted to estimate the suitability, efficacy and accuracy of developed biosensors for non-invasive detection of Li+ in sweat

Treatment:

Combination Product: Smartwatch with integrated Li+ sensor (provided by Spectrophon LTD)