Bioequivalence Study With Clinical Endpoint Comparing Bimatoprost Ophthalmic Solution 0.01% to LUMIGAN® In The Treatment of Chronic Open-Angle Glaucoma

Subjects with chronic open-angle glaucoma or ocular hypertension in both the eyes and meeting all the mentioned inclusion criteria and none of the exclusion criteria will be identified. Qualifying Intra Ocular Pressure (IOPs) following wash-out, at baseline (Day 0 at anytime of the day) should be ≥ 22 milli meter mercury (mm Hg) and ≤ 34 mm Hg in each eye and any asymmetry of IOP between the eyes no greater than 5 mm Hg.

Subjects will receive one drop of investigational product (either A or B) in both the eyes every evening at approximately 10:00 pm ± 2 hours for 42 days.

The study subjects will undergo clinical evaluations throughout the study in order to assess efficacy and safety. Study subject primary endpoint evaluation will be assessed after 2 weeks (day 14) and 6 weeks ( Day 42) of treatment for each study subject deemed eligible for evaluation.

The primary bioequivalence comparison is between the test and reference products for the mean difference in intraocular pressure (IOP) of both eyes between the two treatment groups at six time points, i.e., at 00.00 hours (between 8:00am and 10:00 am), 04.00 hours (at 4 hours after 00.00 hours) and 08.00 hours ( at 8 hours after 00.00 hours) on Day 14 (week 2) and Day 42 (week 6) visits.

Inclusion criteria

• Subjects willing and able to provide voluntary informed consent and to follow the protocol requirements
• Male or non-pregnant females aged ≥18 years having body mass index (BMI) ≥ 17 calculated as weight in kg/height in m2.
• Subjects with chronic open-angle glaucoma or ocular hypertension in both eyes.
• Subjects requiring treatment of both the eyes and can discontinue use of all ocular hypotensive medication(s) or switch ocular hypotensive medications and undergo an appropriate washout period
• Adequate wash-out period prior to baseline of any ocular hypotensive medication as per the table below (In order to minimize potential risk to subjects due to intraocular pressure (IOP) elevations during the washout period, the investigator may choose to substitute a parasympathomimetic or carbonic anhydrase inhibitor in place of a sympathomimetic, alpha-agonist, beta-adrenergic blocking agent, or prostaglandin; however, all subjects must have discontinued all ocular hypotensive medications for the minimum washout period
• Baseline (Day 0/hour 0) IOP ≥ 22 mm Hg and ≤ 34 mm Hg in each eye and difference in IOP between the eyes is not greater than 5 mm Hg
• Subject's IOP is likely to be controlled with monotherapy as per the discretion of the investigator
• Baseline best-corrected visual acuity equivalent to 20/200 (6/60) or better in each eye
• Women of child-bearing potential (defined as women physiologically capable of becoming pregnant, unless they are using an effective contraception method during dosing of the investigational product) practicing any two acceptable contraception methods

Acceptable methods of contraception are:

• Oral or parenteral (injection) , patch, or implant) hormonal contraception which has been used continuously for at least one month prior to the first dose of study medication
• Intrauterine device (IUD) or intrauterine system IUS)
• A double barrier method of contraception (Condom and occlusive cap or condom and spermicidal agent)
• Male sterilization (at least six months prior to the screening, should be the sole male partner for that subject)
• Female sterilization (surgical bilateral oophorectomy) or tubal ligation at least six weeks prior to study participation
• Total abstinence, partial abstinence is not acceptable
• No history of addiction to any recreational drug or drug dependence or alcohol addiction

Exclusion criteria

• Hypersensitivity to Bimatoprost or related class of drugs or any of the excipients of the formulation
• Severe hepatic or renal impairment
• Current or history within two months prior to the baseline of any other significant ocular disease, e.g., corneal edema, uveitis, ocular infection, or ocular trauma in either eye. Note: - Stable myopia, strabismus and cataracts (as per investigator's discretion) will be allowed provided other inclusion/exclusion criteria are met
• Current corneal abnormalities that would prevent accurate IOP readings with the Goldmann applanation tonometer
• Functionally significant visual field loss
• Use of an intraocular corticosteroid implant at any time prior to the baseline
• Use of contact lens within one week prior to the baseline
• Use of 1) topical ophthalmic corticosteroid, or 2) topical corticosteroid within two weeks prior to the baseline
• Use of 1) systemic corticosteroid or 2) high-dose salicylate therapy defined as 325mg/day taken on three consecutive days, within one month prior to the baseline
• Use of intravitreal or subtenon injection of ophthalmic corticosteroid within six months prior to the baseline
• Underwent any other intraocular surgery (e.g., cataract surgery) within six months prior to the baseline
• Underwent refractive surgery, filtering surgery, or laser surgery for IOP reduction (e.g., laser trabeculoplasty) within twelve months prior to the baseline
• Amblyopia/only one sighted eye
• Subjects with a past history of IOP previously uncontrolled on bimatoprost monotherapy
• Severe retinal disease or other severe ocular pathology, such as glaucomatous damage with a cup/disk ratio greater than 0.8, split fixation, or functionally significant (in the investigators' opinion) visual field loss
• Chronic use of any systemic medication that may affect IOP with less than a three-month stable dosing regimen (i.e., sympathomimetic agents, beta-adrenergic blocking agents, alpha agonists, alpha-adrenergic blocking agents, calcium channel blockers, angiotensin-converting enzyme inhibitors, etc.)
• Known history or presence of any uncontrolled systemic disease (e.g., cardiovascular disease, hypertension, diabetes mellitus, hepatic impairment, etc.)
• History of recurrent ocular seasonal allergies within the past two years
• Any other medical condition or severe intercurrent illness that, in the investigator's opinion, may make it undesirable for the subjects to participate in the study and would limit adherence to the study's requirements
• Pregnant or lactating woman
• Subjects with suspected signs and symptoms of COVID-19/confirmed novel coronavirus infection (COVID-19) or with a recent history (within 14 days) of travel/contact with any COVID-19 positive subject/isolation/quarantine