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A Single-Center, Double-Masked Evaluation of the Efficacy and Safety of PRX-100 in the Treatment of Early to Moderate Presbyopia

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT03201562
Recruitment Status : Completed
First Posted : June 28, 2017
Last Update Posted : August 29, 2018
Information provided by (Responsible Party):
Presbyopia Therapies, LLC

Brief Summary:
To evaluate the safety and efficacy of PRX-100 compared with aceclidine alone and vehicle in the treatment of early to moderate presbyopia.

Condition or disease Intervention/treatment Phase
Presbyopia Drug: PRX-100 Drug: PRX-100 Component #1 Drug: PRX-100 Vehicle Phase 2

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 58 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Triple (Participant, Care Provider, Investigator)
Primary Purpose: Treatment
Official Title: A Single-Center, Double-Masked Evaluation of the Efficacy and Safety of PRX-100 in the Treatment of Early to Moderate Presbyopia
Actual Study Start Date : April 30, 2017
Actual Primary Completion Date : May 20, 2018
Actual Study Completion Date : May 20, 2018

Arm Intervention/treatment
Experimental: PRX-100 Ophthalmic Solution Drug: PRX-100
Ophthalmic Solution

Active Comparator: PRX-100 Component #1 Ophthalmic Solution Drug: PRX-100 Component #1
Ophthalmic Solution

Sham Comparator: PRX-100 Vehicle Ophthalmic Solution Drug: PRX-100 Vehicle
Ophthalmic Solution

Primary Outcome Measures :
  1. Proportion of subjects with at least a 3 line (15 letter) improvement in the study eye [ Time Frame: up to 7 hours post-treatment ]
    Proportion of subjects with at least a 3 line (15 letter) improvement in the study eye in the measurement of post-treatment monocular best-corrected distance VA at 45 cm compared to baseline monocular best-corrected distance VA at 45 cm up to 7 hours post-treatment

Information from the National Library of Medicine

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Ages Eligible for Study:   48 Years to 64 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  1. Be able and willing to provide written informed consent and sign Health Information Portability and Accountability Act (HIPAA) form prior to any study procedure being performed;
  2. Be able and willing to follow all instructions and attend study visits;
  3. Be 48-64 years of age of either sex and any race or ethnicity at visit 1;
  4. Be an early to moderate presbyope determined by screening monocular best-corrected distance visual acuity (VA) at 45 cm
  5. Be able and willing to avoid all disallowed medications for the appropriate washout period and during the study without significant risk to the subject.

Exclusion Criteria:

  1. Be a female of childbearing potential who is currently pregnant, nursing or planning a pregnancy;
  2. Have known contraindications or sensitivity to the use of any of the study medications(s) or their components;
  3. Have an active ocular infection at visit 1 (bacterial, viral or fungal), positive history of an ocular herpetic infection, preauricular lymphadenopathy, or ongoing, active ocular inflammation (eg, moderate to severe blepharitis, allergic conjunctivitis, peripheral ulcerative keratitis, scleritis, uveitis) in either eye;
  4. Have moderate or severe dry eye;
  5. Have clinically significant abnormal lens findings (eg cataract) including early lens changes and/or any evidence of a media opacity in either eye;
  6. Have dark-adapted pupillometry measurements of < 4.0 mm in either eye;
  7. Have intraocular pressure (IOP) that is less than 5 millimeters of mercury (mmHg) or greater than 22 mmHg in either eye documented at visit 1, or have a prior diagnosis of ocular hypertension or glaucoma or currently being treated with any type of topical IOP lowering (glaucoma) medication at visit 1;
  8. Have abnormal findings on dilated fundus exam in either eye documented within 3 months of visit 1 or a known history of retinal detachment or clinically significant retinal disease in either eye;
  9. Have a known history or diagnosis in the past of: iritis, scleritis or uveitis, whether active or inactive;
  10. Have had surgical intervention (ocular or systemic) within 6 months prior to visit 1, or planned surgical intervention within 30 days after visit 4;
  11. Have undergone refractive eye surgery (incisional keratotomy, photorefractive keratectomy [PRK], laser in situ keratomileusis [LASIK], laser-assisted sub-epithelial keratectomy [LASEK]), corneal inlay procedures, cataract extraction, or intraocular lens placement;
  12. Use artificial tears or lubricant eye ointment on a daily basis;
  13. Have an inability or refuse to discontinue soft contact lens wear 7 days prior to study visit 1 and rigid gas permeable (RGP) contact lens wear 14 days prior to visit 1 and during the study;
  14. Use any of the following disallowed medications during the 2 weeks (14 days) prior to visit 1 and during the study:

    1. narcotic (opiate class) pain medication (eg, codeine, OxyContin®, Vicodin®, Tramadol®)
    2. bladder medication (eg Urecholine®, bethanechol)
    3. antipsychotics
    4. antidepressants
    5. attention -deficit/hyperactivity disorder (ADHD) medications
    6. alpha-blockers (eg, tamsulosin, Flomax®, Jayln®, Uroxatral®, Rapaflo®)
    7. anticholinergics (eg, atropine, belladonna, benztropine, dicyclomine, donepezil, hyoscyamine, propantheline, scopolamine, trihexphenidyl)
    8. muscarinic receptor agonists or cholinergic agonists (eg, Salagen®, Evoxac®)
    9. over-the-counter (OTC) or prescription antihistamines or decongestants
    10. any prescribed topical ophthalmic medications
    11. recreational drug use (eg, marijuana, methadone, heroin, cocaine);
  15. Have a diagnosis of diabetes mellitus or a history of elevated blood sugar;
  16. Have a condition or a situation, which in the Investigator's opinion, may put the subject at increased risk, confound study data, or interfere significantly with the subject's study participation, including but not limited to unstable: cardiovascular, hepatic, renal, respiratory, gastrointestinal, endocrine, immunologic, dermatologic, hematologic, neurologic, or psychiatric disease.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03201562

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United States, Massachusetts
Andover Eye Associates
Andover, Massachusetts, United States, 01810
Sponsors and Collaborators
Presbyopia Therapies, LLC
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Principal Investigator: Gail Torkildsen, MD Andover Eye Associates

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Responsible Party: Presbyopia Therapies, LLC Identifier: NCT03201562     History of Changes
Other Study ID Numbers: PRX100.FDAIIb
First Posted: June 28, 2017    Key Record Dates
Last Update Posted: August 29, 2018
Last Verified: October 2017

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Refractive Errors
Eye Diseases
Ophthalmic Solutions
Pharmaceutical Solutions