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Evaluation of the Efficacy and Safety of PRX-100 in the Treatment of Early to Moderate Presbyopia

Primary Purpose

Presbyopia

Status
Completed
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
PRX-100
Placebo
Sponsored by
LENZ Therapeutics, Inc
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Presbyopia focused on measuring ophthalmology, vision, ocular

Eligibility Criteria

45 Years - 59 Years (Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. be 45-59 years of age of either sex and any race or ethnicity;
  2. be able and willing to provide written informed consent and sign HIPAA form prior to any study procedure being performed;
  3. be able and willing to follow all instructions and attend all study visits;
  4. have a negative urine pregnancy test at Visit 1, if female of childbearing potential (those who have experienced menarche and who are not surgically sterilized [bilateral tubal ligation, hysterectomy or bilateral oophorectomy] or post-menopausal [12 months after last menses]) and must use adequate birth control throughout the study period. Adequate birth control is defined as hormonal - oral, implantable, injectable, or transdermal contraceptives; mechanical - spermicide in conjunction with a barrier such as condom or diaphragm; intrauterine device (IUD); or surgical sterilization of partner. For non-sexually active females, abstinence may be regarded as an adequate method of birth control;
  5. be an early to moderate presbyope
  6. be able and willing to avoid all disallowed medication(s) for the appropriate washout period and during the study without significant risk to the subject (see exclusion 15).

Exclusion Criteria:

  1. have known contraindications or sensitivity to the use of any of the study medications(s) or their components;
  2. have an active ocular infection (bacterial, viral or fungal), positive history of an ocular herpetic infection, preauricular lymphadenopathy, or ongoing, active ocular inflammation (e.g. moderate to severe blepharitis, allergic conjunctivitis, peripheral ulcerative keratitis, scleritis, uveitis) in either eye. Mild dry eye controlled with artificial tears and mild blepharitis controlled with lid scrubs is allowed;
  3. have had surgical intervention (ocular or systemic) within 6 months prior to Visit 1, or planned surgical intervention within 30 days thereafter;
  4. have had refractive surgery in the past;
  5. have dry eye history defined as either current use of Restasis®, past history of insertion of punctual plugs, or daily use of artificial tears more than one drop per day;
  6. have a known history of retinal detachment, diabetic retinopathy, or progressive retinal disease;
  7. have an intraocular pressure that is less than 5 mmHg or greater than 22 mmHg, or be on any type of intraocular hypertension or any type of glaucoma topical treatment at Visit 1;
  8. have red-green color blindness confirmed by Ishihara test during baseline procedures;
  9. have an inability or refuse to discontinue contact lens wear 7 days prior to the study visit and during the study visit;
  10. have used an investigational drug or device within 30 days of starting the study or be concurrently enrolled in another investigational drug or device study;
  11. be a female of childbearing potential who is currently pregnant, nursing or planning a pregnancy; tests positive to a urine pregnancy test at Visit 1; or refuses to use an adequate method of contraception for the duration of the study;
  12. 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;
  13. use any of the following disallowed medications during the 2 weeks (14 days) prior to Visit 1 and during the study:

    • narcotic (opiate class) pain medication (e.g. codeine, oxycontin, Vicodin®, Tramadol®)
    • bladder medication (e.g. urecholine, bethanechol®)
    • antipsychotics
    • antidepressants
    • anticholinergics (e.g. atropine, belladonna, benztropine, dicyclomine, donepezil, hyoscyamine, propantheline, scopolamine, trihexphenidyl
    • dry mouth (e.g. salagen®), Evoxac®)
    • antihistamines or decongestants
    • artificial tear use of more than 1 drop per day
    • diagnostic medications required by the protocol are allowed;
  14. report of recreational drug use (e.g. marijuana, methadone, heroin, cocaine).

Sites / Locations

  • Andover Eye Associates

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Placebo Comparator

Arm Label

PRX-100

Placebo

Arm Description

PRX-100 ophthalmic solution

saline solution

Outcomes

Primary Outcome Measures

binocular assessment of uncorrected near visual acuity

Secondary Outcome Measures

pupil diameter

Full Information

First Posted
September 16, 2015
Last Updated
October 19, 2017
Sponsor
LENZ Therapeutics, Inc
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1. Study Identification

Unique Protocol Identification Number
NCT02554396
Brief Title
Evaluation of the Efficacy and Safety of PRX-100 in the Treatment of Early to Moderate Presbyopia
Official Title
A Single-Center, Double-Masked Evaluation of the Efficacy and Safety of PRX-100 (Aceclidine/Tropicamide) Ophthalmic Topical Formulation in the Treatment of Early to Moderate Presbyopia
Study Type
Interventional

2. Study Status

Record Verification Date
October 2017
Overall Recruitment Status
Completed
Study Start Date
September 2015 (undefined)
Primary Completion Date
November 2015 (Actual)
Study Completion Date
November 2015 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
LENZ Therapeutics, Inc

4. Oversight

5. Study Description

Brief Summary
This is a one-day, randomized, double-masked, single-center evaluation of the efficacy and safety of PRX-100 ophthalmic solution compared to placebo in 20 subjects (randomized 4:1, PRX-100:placebo) to evaluate the safety of PRX-100 and the magnitude and duration of effects on improving near-vision acuity.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Presbyopia
Keywords
ophthalmology, vision, ocular

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
20 (Actual)

8. Arms, Groups, and Interventions

Arm Title
PRX-100
Arm Type
Experimental
Arm Description
PRX-100 ophthalmic solution
Arm Title
Placebo
Arm Type
Placebo Comparator
Arm Description
saline solution
Intervention Type
Drug
Intervention Name(s)
PRX-100
Intervention Description
ophthalmic solution
Intervention Type
Drug
Intervention Name(s)
Placebo
Intervention Description
saline ophthalmic solution
Primary Outcome Measure Information:
Title
binocular assessment of uncorrected near visual acuity
Time Frame
day 1
Secondary Outcome Measure Information:
Title
pupil diameter
Time Frame
day 1

10. Eligibility

Sex
All
Minimum Age & Unit of Time
45 Years
Maximum Age & Unit of Time
59 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: be 45-59 years of age of either sex and any race or ethnicity; be able and willing to provide written informed consent and sign HIPAA form prior to any study procedure being performed; be able and willing to follow all instructions and attend all study visits; have a negative urine pregnancy test at Visit 1, if female of childbearing potential (those who have experienced menarche and who are not surgically sterilized [bilateral tubal ligation, hysterectomy or bilateral oophorectomy] or post-menopausal [12 months after last menses]) and must use adequate birth control throughout the study period. Adequate birth control is defined as hormonal - oral, implantable, injectable, or transdermal contraceptives; mechanical - spermicide in conjunction with a barrier such as condom or diaphragm; intrauterine device (IUD); or surgical sterilization of partner. For non-sexually active females, abstinence may be regarded as an adequate method of birth control; be an early to moderate presbyope be able and willing to avoid all disallowed medication(s) for the appropriate washout period and during the study without significant risk to the subject (see exclusion 15). Exclusion Criteria: have known contraindications or sensitivity to the use of any of the study medications(s) or their components; have an active ocular infection (bacterial, viral or fungal), positive history of an ocular herpetic infection, preauricular lymphadenopathy, or ongoing, active ocular inflammation (e.g. moderate to severe blepharitis, allergic conjunctivitis, peripheral ulcerative keratitis, scleritis, uveitis) in either eye. Mild dry eye controlled with artificial tears and mild blepharitis controlled with lid scrubs is allowed; have had surgical intervention (ocular or systemic) within 6 months prior to Visit 1, or planned surgical intervention within 30 days thereafter; have had refractive surgery in the past; have dry eye history defined as either current use of Restasis®, past history of insertion of punctual plugs, or daily use of artificial tears more than one drop per day; have a known history of retinal detachment, diabetic retinopathy, or progressive retinal disease; have an intraocular pressure that is less than 5 mmHg or greater than 22 mmHg, or be on any type of intraocular hypertension or any type of glaucoma topical treatment at Visit 1; have red-green color blindness confirmed by Ishihara test during baseline procedures; have an inability or refuse to discontinue contact lens wear 7 days prior to the study visit and during the study visit; have used an investigational drug or device within 30 days of starting the study or be concurrently enrolled in another investigational drug or device study; be a female of childbearing potential who is currently pregnant, nursing or planning a pregnancy; tests positive to a urine pregnancy test at Visit 1; or refuses to use an adequate method of contraception for the duration of the study; 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; use any of the following disallowed medications during the 2 weeks (14 days) prior to Visit 1 and during the study: narcotic (opiate class) pain medication (e.g. codeine, oxycontin, Vicodin®, Tramadol®) bladder medication (e.g. urecholine, bethanechol®) antipsychotics antidepressants anticholinergics (e.g. atropine, belladonna, benztropine, dicyclomine, donepezil, hyoscyamine, propantheline, scopolamine, trihexphenidyl dry mouth (e.g. salagen®), Evoxac®) antihistamines or decongestants artificial tear use of more than 1 drop per day diagnostic medications required by the protocol are allowed; report of recreational drug use (e.g. marijuana, methadone, heroin, cocaine).
Facility Information:
Facility Name
Andover Eye Associates
City
Andover
State/Province
Massachusetts
ZIP/Postal Code
01810
Country
United States

12. IPD Sharing Statement

Learn more about this trial

Evaluation of the Efficacy and Safety of PRX-100 in the Treatment of Early to Moderate Presbyopia

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