Clairco Study Home2026-01-29T01:20:12+00:00
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Living with primary photoreceptor disease, including retinitis pigmentosa, Usher syndrome, or cone-rod dystrophy?

CLARICO is a study of an investigational cell therapy designed to replace the damaged photoreceptors in the retina to potentially restore vision.

If you or a loved one has been diagnosed with primary photoreceptor disease, complete the CLARICO Checklist to see if you or your loved one may qualify to participate.

OR
Call us at (877) 380-3931 to see if you may participate.
The sponsor of the CLARICO study is BlueRock Therapeutics.

Living With Primary Photoreceptor Disease

Replacing photoreceptors lost to disease to potentially restore vision

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The retina contains cells called rods and cones, which are known as photoreceptors. These are specialized cells that convert light into signals sent to the brain that allow us to see. In primary photoreceptor disease (including retinitis pigmentosa, Usher syndrome, and Cone-Rod Disease/Dystrophy), damaged cells lead to loss of vision. Over time, the damage can progress which causes worsening vision and ultimately blindness.

There is no cure for these conditions. Current treatments are primarily supportive, such as tools to aid vision, but none of these options address the root cause of photoreceptor loss in the retina. Cell therapy involves replacing the cells lost to disease with new healthy cells. The CLARICO study is evaluating OpCT-001, a cell therapy that is created from stem cells. These stem cells are converted into cells that can become the light-detecting cells in the retina, called photoreceptor cells. OpCT-001 cells will be administered to the back of the eye by a trained retinal surgeon, to replace the photoreceptor cells lost to disease with new healthy cells in an effort to potentially restore vision.

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A medical illustration of an eye showing the retina and photoreceptor location for cell therapy treatment.
About the Study Drug

How does OpCT-001 work?

A medical illustration of an eye showing the retina and photoreceptor location for cell therapy treatment.
OpCT-001 is a cell therapy created from stem cells. These stem cells are converted into cells that can become the light-detecting cells in the retina, called photoreceptor cells. OpCT-001 cells will be administered to the back of the eye by a trained retinal surgeon, to replace the photoreceptor cells lost to disease with new healthy cells in an effort to potentially restore vision.
OR
Call us at (877) 380-3931 to see if you may participate.
*OpCT-001 is currently being studied and is not approved for use in any country.

Creating OpCT-001 for use in the CLARICO study

01.
Illustration of a laboratory beaker and flask containing cell samples.
Healthy cells are obtained from blood from a single healthy adult donor.
02.
Illustration of a pipette releasing liquid into a petri dish filled with cell samples.
The cells are altered through a process called reprogramming to generate stem cells.
03.
Illustration of a laboratory flask containing cell samples with radiating lines indicating activity or growth.
These healthy stem cells are converted into OpCT-001, the study drug. These cells can become the light-detecting cells in the retina, called photoreceptor cells.
04.
Illustration of an eye cross-section with a needle indicating an ocular injection procedure.
In the CLARICO study, a trained retinal surgeon will administer the OpCT-001 cells to the back of the eye, behind the retina, to replace the photoreceptor cells lost to disease with new healthy cells.

Who can take part in the CLARICO study?

You may be able to take part in the CLARICO study if you:

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Are 18 years old or older
Illustration of an eye with radiating lines, representing vision, observation, or visual focus.

Have primary photoreceptor disease, including:

  • Retinitis Pigmentosa (RP)
  • Usher Syndrome
  • Cone-Rod Disease/Dystrophy
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Live in the United States or Puerto Rico

There will be other study requirements that the study team will discuss with you.

OR
Call us at (877) 380-3931 to see if you may participate.

Study Details

CLARICO is a Phase 1/Phase 2a clinical study that is the first human clinical study of OpCT-001. You can also find information at www.clinicaltrials.gov; NCT06789445.

The study is designed to address the following questions:

  • Is OpCT-001 safe and well tolerated?
  • Does OpCT-001 impact retinal structure?
  • Does OpCT-001 change performance on a vision test?

Study Overview

Screening Period2025-07-18T15:34:34+00:00
  • Review, discuss, and sign the informed consent form
  • Provide background information to your study doctor, including your medical history
  • Undergo a physical examination
  • Provide blood and urine samples
  • Undergo ophthalmic and visual assessments
  • Complete questionnaires related to your vision
Primary Evaluation Period2025-11-01T02:43:45+00:00
  • Attend clinic visits (the frequency of the visits decreases over time)
  • Take immunosuppressive medications
    • Immunosuppressive medications are taken to prevent your body from rejecting the OpCT-001 cells. This will give the OpCT-001 cells a greater chance at surviving in your retina once they have been administered.
  • Undergo surgery to receive OpCT-001 cells
  • Provide blood and urine samples
  • Undergo assessments including ophthalmic and vision assessments, physical examinations, and questionnaires
  • Communicate any concerns or issues to your study doctor
Extended Evaluation Period2025-11-01T02:44:48+00:00
  • Clinic visits (the frequency of the visits decreases over time)
  • Undergo assessments including ophthalmic and vision assessments, physical examinations, and questionnaires
  • Communicate any concerns or issues to your study doctor
  • Provide blood and urine samples
Your participation in a clinical trial can make a difference

By participating in a clinical study, you are helping to represent both your community and people who are affected by primary photoreceptor diseases.

Greater diversity among study participants allows researchers to understand how potential medicines work in different people. Factors such as genetics, race, ethnicity, age, and sex can impact how different people respond to the same treatment. That is why it is important that people of all backgrounds are included in clinical studies.

Calendar icon representing that participation in the clinical study will last about two years.
The study will last about 2 years.
Illustration of a trained eye surgeon performing the OpCT-001 treatment at a surgical location.
OpCT-001 is administered by a trained eye surgeon. The study may take place at a surgical location other than your regular study location. You will need to stay near the surgical location for about 10 days.
Clock icon representing the variable length of study visits, ranging from brief appointments to full-day visits.
The time required for each study visit will vary from brief to a full-day visit. Please ask your study team for more details before you commit to participating in the study.
Your choice to participate

Of course, participant safety is the top priority of this study.  Before you participate you will be given all the details about the study, including potential risks and benefits of taking part, so you can review and discuss this decision with your doctor, family, or friends. The study team will also monitor your health while in the study.

If the CLARICO study is a good fit for you, and you are able to take part, it is important to know that you always have a choice. You are free to leave the study at any time for any reason, by contacting your study team.

Study-related costs are covered
The study medicine and any study-related procedures are generally covered at no cost (and do not require insurance). Travel costs related to participation in the study will be covered (such as parking, meals, flight, etc.) for the participant and a care partner, if applicable.
OR
Call us at (877) 380-3931 to see if you may participate.

Find Out More

If you are an adult with a diagnosis of a primary photoreceptor disease including rod-cone disease (also referred to as retinitis pigmentosa), Usher syndrome, or cone-rod disease, and you’d like to learn more about the study, we would love to hear from you!
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