NCT07860905 · AdaptDx, Inc.
A Study to Test the Repeatability and Reproducibility in Rod Intercept Time Within the AdaptDx Pro in Healthy Subjects With Normal Vision (FlashForward)
(FlashForward)
What this study is about
The purpose of this study is to test the repeatability and reproducibility in Rod Intercept (RI) time with two AdaptDx Pro devices in healthy subjects with normal vision.
View original scientific description
The purpose of this study is to test the repeatability and reproducibility in Rod Intercept (RI) time with two AdaptDx Pro devices in healthy subjects with normal vision.
Interventions
DIAGNOSTIC_TEST
AdaptDx Pro
The AdaptDx device measures changes in dark adaptation via rod intercept time.
Primary outcome measures
Rod Intercept Time (RIT)
Time frame: Immediately after test
Rod intercept time is the measure of time it takes for the human eye's rod photoreceptors to recover sensitivity and adjust from bright light to darkness
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
- (each eye qualifies for the study independently):
- Male or female between the ages of 22 and 49 (inclusive) at Visit 1
- ETDRS BCVA letter score of 85 (Snellen equivalent of 20/20) or better at Visit 1
- Able to communicate well with the Investigator and able to understand and comply with the requirements of the study
- Informed of the nature of this study and has provided written informed consent in accordance with institutional, local and national regulatory guidelines
Exclusion criteria
- (each eye qualifies for the study independently):
- Unable to follow simple instructions, operate a response button or maintain attention for 20 minutes
- Diagnosis or history of any ocular disease or disorder
- Serious medical illness that will prevent the subject from performing study activities (including cardiac, hepatic, renal, respiratory, endocrinologic, neurologic, or hematologic disease) or, in the judgement of the Investigator, is likely to require surgical intervention or hospitalization at any point during the study
- Presence of or history of malignancy within the past year of Visit 1 other than non-melanoma skin or squamous cell cancer or cervical carcinoma in-situ
- Is non-ambulatory
- History of drug, alcohol or substance abuse within 3 months prior to Visit 1
- Has received an investigational drug or treatment with an investigational device within 3 months prior to Visit 1
- In the opinion of the Investigator, is unlikely to comply with the study protocol
Where
- Silverdale, Washington
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 Oct 6, 2026 · Source of record for eligibility and locations