Validating Specialized Phototherapy

Parkinson’s Phase 3/Pivotal Trial

With basic science, animal work, and our early clinical work complete, we are eager to execute our Celeste Light for PD phase3/pivotal trial in Parkinson’s. Trial details include:

  • Building on Our Phase 2 Trial. Celeste Light for PD closely follows the design and methodology of our phase 2 trial.
  • Concurrence with FDA. Our clinical team met with FDA in pre-submission meetings to refine the protocol and statistical analysis to assure that if successful, the pivotal trial will provide the data necessary for market clearance.
  • Successful Endpoints. The primary and key secondary endpoints agreed to by FDA for the phase3/pivotal trial, were statistically significant and clinically meaningful in the 92 patient, phase 2 trial.
  • 300 Patients. Celeste Light for PD will enroll 300 patients. Half of the patients will receive the Celeste device and half will receive a comparator device.
  • Greater than 90% Power. With 300 patients, the primary endpoint is powered at greater than 90%. 
  • Leading Clinical Trial Center. This is a remote clinical trial conducted by Ray Dorsey, MD, MBA and his team at the Center for Health and Technology (CHeT) at the University of Rochester. Dr. Dorsey is considered by many to be the world’s leading remote clinical trialist in movement disorders. CHeT has one of the best track records of conducting trials that lead to FDA approvals.

Read our recent announcement here. Additional details are available at (#NCT04453033). If you or someone you know would like to be considered for this trial, click here.

Early Clinical Trials

Parkinson’s Phase 2, 92 Patient Trial

Patients showed large, meaningful improvement in our phase 2, multi-national, randomized, double-blind, controlled trial. The trial enrolled 92 patients to assess the safety and efficacy of our specialized phototherapy device (non-drug treatment) for motor and non-motor symptoms in Parkinson’s disease. Learn more at (#NCT02175472).


  • Efficacy. We saw clinically meaningful improvements in combined both motor and non-motor function and quality of life. Patients enjoyed statistically significant improvements in tremor, sleep, fatigue, cognition, depression, anxiety, apathy and urinary function. Preliminary trial results can be viewed here.
  • Safety. As anticipated, no device-related serious adverse events were reported in the trial. Patients experienced only benign and transitory side effects.

Supporting Research

Previous short-term light therapy trials have demonstrated varying degrees of improvement in motor and non-motor symptoms in Parkinson’s disease. Click below to review studies involving the effects of various wavelengths, intensities, and session frequency.


Other Neurodegenerative Diseases

Early data and our mechanistic work suggest that Celeste specialized phototherapy can provide clinical benefit in other neurodegenerative and neuropsychiatric disorders. We are validating this data and will begin clinical studies to address these large unmet needs with the objective of providing novel, safe, and effective treatments to those who need it most.