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XEN-45 Gel Stent Versus Trabeculectomy in Glaucoma: Gold-Standard Pathway Study (GPS)

XEN-45 Gel Stent Versus Trabeculectomy in Glaucoma: Gold-Standard Pathway Study (GPS)

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03654885
Acronym
XEN GPS
Enrollment
158
Registered
2018-08-31
Start date
2018-10-01
Completion date
2021-05-13
Last updated
2022-07-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Glaucoma

Brief summary

The purpose of this study is to compare the safety and efficacy of XEN-45 to trabeculectomy in participants with open angle glaucoma refractory to topical medical therapy.

Detailed description

This is a multi-center, randomized, parallel group, prospective, open-label clinical trial to evaluate the ability of XEN-45 to reduce intraocular pressure (IOP) and reduce the amount of topical IOP-lowering medications in participants poorly controlled on topical therapy. The planned study duration is 12 months. Participants were to be screened for enrollment and eligible candidates were to be approached to ascertain interest in study participation. Eligible participants were to be randomized 2:1; resulting in approximately 95 eyes implanted with XEN-45 and 44 eyes received trabeculetomy by study end.

Interventions

DEVICEXEN-45 Gel Stent

XEN-45 gel stent device implant

PROCEDURETrabeculectomy

Trabeculectomy surgery

Sponsors

Allergan
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Open-angle glaucoma where the intraocular pressure (IOP) is not controlled when using topical IOP-lowering glaucoma medication * Best-corrected baseline Snellen visual acuity of 20/100 or better * Visual field mean deviation no worse than -18.0 decibels (dB) * Medicated IOP ≥15 millimeter of mercury (mm Hg) and ≤44 mm Hg * Participants not anticipated to require any ocular surgery (e.g., cataract surgery) in either eye up to 3 months from the time of inclusion * Area of healthy, free, and mobile conjunctiva in the target area (superior bulbar conjunctiva) * Trabecular meshwork must be visible (with Shaffer angle grade ≥2 in the target quadrant) * Failed ab-interno canal or suprachoroidal micro invasive glaucoma surgery (MIGS) procedures (such as i-Stent, gonioscopy-assisted transluminal trabeculotomy \[GATT\], Ab-interno canaloplasty \[ABiC\], Kahook dual blade goniotomy, etc.) are allowed ≥3 months before enrollment. CyPass® Micro-Stents were not allowed.

Exclusion criteria

* Participant has active neovascular, uveitic or angle recession glaucoma or any glaucoma associated with vascular disorders * Participant has had prior ab externo incisional glaucoma surgery (such as trabeculectomy, viscocanalostomy, canaloplasty, tube shunts of any type, collagen implants, etc.), conjunctival filtering surgery, transscleral cycloablative procedures (such as cyclophotocoagulation, micro pulse cyclophotocoagulation, cryotherapy, ultrasound circular cyclocoagulation \[UC3\], etc.) or prior major conjunctival surgery (i.e., scleral buckle) * Clinically significant inflammation or infection within 30 days before the preoperative visit (e.g., blepharitis, conjunctivitis, severe ocular surface disease, keratitis, uveitis, herpes simplex infection) * Presence of conjunctival scarring or prior conjunctival surgery or other conjunctival pathologies (e.g., pterygium) in the target area * History of corneal surgery, corneal opacities, or corneal disease * Central corneal thickness ≤490 micrometer (μm) or ≥620μm * Vitreous present in the anterior chamber * Aphakic * Participant has had prior intraocular surgery in either eye within ≤3 months before the preoperative visit (including phacoemulsification) * History of complicated cataract surgery (e.g. with visual impairment, e.g. vitreous loss, anterior chamber intraocular lens \[ACIOL\], perhaps sutured intraocular lens \[IOL\] or scleral fixated IOL, prior cystoid macular edema \[CME\], etc.) * Presence of intraocular silicone oil * Active diabetic retinopathy, proliferative retinopathy, choroidal neovascularization, branch retinal vein occlusion, central retinal vein occlusion, geographic atrophy, or other ophthalmic disease or disorder that could confound study results or impaired episcleral venous drainage (e.g., Sturge-Weber or nanophthalmos, Axenfeld-Reiger, iridocorneal endothelial syndrome \[ICE\], etc.) * Known or suspected allergy or sensitivity to drugs required for the protocol (including anesthesia), or any of the device components (e.g., bovine or porcine products, or glutaraldehyde) * Pregnant or nursing women and those planning a pregnancy during the study period. * Participation in another drug or device clinical trial concluding within 30 days before the preoperative visit

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants Achieving at Least 20% Intraocular Pressure (IOP) Reduction (Improvement) From Baseline at Month 12 With Prespecified CaveatsBaseline (Preoperative) to Month 12IOP is a measure of the fluid pressure inside the eye. In addition to achieving a 20% reduction of IOP from Baseline, the participants had to meet all of the following prespecified caveats at Month 12: no increase in the number of topical IOP-lowering medications compared to Baseline, no clinical hypotony, no loss of vision to count fingers or worse, and no secondary glaucoma surgical intervention.

Secondary

MeasureTime frameDescription
Change From Baseline in Mean IOP at Month 12Baseline (Preoperative) and Month 12IOP is a measurement of the fluid pressure inside the eye.
Mean Number of Needlings Per EyeUp to Month 12Needling of eye involves breaking down the wall of the scar using a fine needle to improve the drainage of fluid inside the eye.
Mean IOP Over TimeBaseline and Day 1, Weeks 1 and 2, Months 1, 3, 6, 9, and 12IOP is a measurement of the fluid pressure inside the eye.
Change From Baseline in Mean IOP Over TimeBaseline and Day 1, Weeks 1 and 2, Months 1, 3, 6, 9, and 12IOP is a measurement of the fluid pressure inside the eye.
Mean Number of Topical IOP-Lowering Medications Over TimeBaseline and Day 1, Weeks 1 and 2, Months 1, 3, 6, 9, and 12IOP is a measurement of the fluid pressure inside the eye. Topical IOP-lowering medication classes included: prostaglandin analogues, beta adrenergic antagonists, carbonic anhydrase inhibitors,alpha adrenergic agonists, pilocarpine, and combinations of these treatments.
Change From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeBaseline and Day 1, Weeks 1 and 2, Months 1, 3, 6, 9, and 12IOP is a measurement of the fluid pressure inside the eye. Topical IOP-lowering medication classes included: prostaglandin analogues, beta adrenergic antagonists, carbonic anhydrase inhibitors,alpha adrenergic agonists, pilocarpine, and combinations of these treatments.
Change From Baseline in Mean Number of Topical IOP-Lowering Medications at Month 12Baseline (Preoperative) and Month 12IOP is a measurement of the fluid pressure inside the eye. Topical IOP-lowering medication classes included: prostaglandin analogues, beta adrenergic antagonists, carbonic anhydrase inhibitors, alpha adrenergic agonists, pilocarpine, and combinations of these treatments.
Change in Mean IOP From Preoperative Baseline Over Time in Participants With Eyes With Baseline IOP ≤18 mm HgBaseline (Preoperative) and Month 12IOP is a measurement of the fluid pressure inside the eye.
Change in Number of Topical IOP-Lowering Medications From Preoperative Baseline to Month 12 in Participants With Eyes With Baseline IOP ≤18 mm HgBaseline (Preoperative) and Month 12Topical IOP-lowering medication classes included: prostaglandin analogues, beta adrenergic antagonists, carbonic anhydrase inhibitors, alpha adrenergic agonists, pilocarpine, and combinations of these treatments.
Percentage of Participants Achieving Specific IOP Targets at Month 12Month 12IOP is a measurement of the fluid pressure inside the eye. Specific IOP targets included following IOP values (in mm Hg): ≤18, ≤17, ≤16, ≤15, ≤14, ≤13, ≤12 mm Hg.
Percentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12Baseline (Preoperative) to Month 12IOP is a measurement of fluid pressure inside the eye. Specific percentage IOP lower targets included ≥25%, ≥30%, ≥35%, ≥40% ≥45%, and ≥50% IOP reduction.
Percentage of Participants Achieving at Least a 20% IOP Reduction and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12Baseline (Preoperative) and Month 12IOP is a measurement of fluid pressure inside the eye. Specific IOP targets included following IOP values (in mm Hg): ≤18, ≤17, ≤16, ≤15, ≤14, ≤13, ≤12 mm Hg.
Percentage of Participants With Needlings PerformedUp to Month 12Needling of eye involves breaking down the wall of the scar using a fine needle to improve the drainage of fluid inside the eye.
Percentage of Eyes Achieving at Least a 20% Reduction in IOP at Month 12 on the Same or Fewer Topical IOP-lowering Medications in Participants Who Had NeedlingsMonth 12IOP is a measurement of fluid pressure inside the eye. Topical IOP-lowering medication classes include: prostaglandin analogues, beta adrenergic antagonists, carbonic anhydrase inhibitors, alpha adrenergic agonists, pilocarpine, and combinations of these treatments.
Percentage of Eyes Not Using Any Topical IOP-lowering Medications in Participants Who Had NeedlingsMonth 12Topical IOP-lowering medication classes included: prostaglandin analogues, beta adrenergic antagonists, carbonic anhydrase inhibitors, alpha adrenergic agonists, pilocarpine, and combinations of these treatments.
Percentage of Participants With Antifibrotic Use During NeedlingUp to Month 12Antifibrotic use included mitomycin-C (MMC) which was standardized for both groups and administered according to physician training and practice.
Percentage of Participants Achieving Complete Success at Month 12Month 12Complete success was defined as IOP ≤18mm Hg, with 20% or greater IOP lowering from medicated Baseline, on no topical medications, and no clinical hypotony. The topical medication included any topical ophthalmic medication used on the study eye regardless of the indication and dosage.
Percentage of Participants Achieving Qualified Success at Month 12Month12Qualified success was defined as IOP ≤18 mm Hg, with 20% or greater IOP lowering from medicated Baseline, taking topical medications at Baseline Qualifying Visit, no clinical hypotony. The topical medication included any topical ophthalmic medication used on the study eye regardless of the indication and dosage.
Percentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free EyeMonth 12IOP is a measurement of the fluid pressure inside the eye. Specific IOP targets included following IOP values (in mm Hg): ≤18, ≤17, ≤16, ≤15, ≤14, ≤13, ≤12 mm Hg. Medication-free eye at Month 12 was defined as no IOP-lowering medication was used to the study eye at Month 12.
Percentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free EyesMonth 12IOP is a measurement of the fluid pressure inside the eye. Specific percentage IOP lower targets included ≥25%, ≥30%, ≥35%, ≥40% ≥45%, and ≥50% IOP reduction. Medication-free eye at Month 12 was defined as no IOP-lowering medication was used to the study eye at Month 12.
Percentage of Participants With Intraoperative Adjunctive Antifibrotic Therapy UseMonth 12Antifibrotic use included MMC which was standardized for both groups and administered according to physician training and practice.
Percentage of Participants With Intraoperative Adjunctive Antifibrotic Therapy Based on Time of AdministrationMonth 12Antifibrotic use included MMC which was standardized for both groups and administered according to physician training and practice. The time of administration was classified into two categories as: Before Procedure and After Procedure.
Percentage of Participants With Different Modes of Administration of Intraoperative Adjunctive Antifibrotic TherapyMonth 12Antifibrotic use included MMC which was standardized for both groups and administered according to physician training and practice. The mode of administration was classified into two categories as: Injection and Other. Other includes all other modes of administration apart from injection.
Percentage of Participants With Different Volumes of Intraoperative Adjunctive Antifibrotic TherapyMonth 12Antifibrotic use included MMC which was standardized for both groups and administered according to physician training and practice. The volume of administration measured in milliliters (mL) was classified into three categories as: 0.1, 0.2, and Other. Other includes all other volumes apart from 0.1 and 0.2.
Percentage of Participants With Different Concentrations for Intraoperative Adjunctive Antifibrotic TherapyMonth 12Antifibrotic use included MMC which was standardized for both groups and administered according to physician training and practice. The concentration of administration measured in milligram per milliliter (mg/mL) was classified into three categories as: 0.2, 0.4, and Other. Other includes all other concentrations apart from 0.2 and 0.4.
Percentage of Participants With Different Absolute Dose for Intraoperative Adjunctive Antifibrotic TherapyMonth 12Antifibrotic use included MMC which was standardized for both groups and administered according to physician training and practice. The absolute dose of administration measured in microgram per milliliter (µg/mL) was classified into two categories as: 40, and Other. Other includes all other concentrations apart from 40.
Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesBaseline and Day 1, Weeks 1 and 2, and Months 1, 3, 6, 9, and 12BCVA was performed using a Snellen eye chart with glasses, and the BCVA data collected in the visual acuity electronic case report form (eCRF) page was analyzed. The number of lines read correctly was assessed as the line change from baseline at each follow-up evaluation and were log transformed. A logMAR value of 0 equates to 20/20 Snellen visual acuity (normal distance eyesight), with a lower and negative logMAR value indicating better visual acuity.
Mean Change From Baseline in Manifest Refraction - Mean Visual Acuity Using Snellen Eye Chart in LogMAR ScaleBaseline (Preoperative) and postoperative Months 1, 3, 6, and 12Manifest Refraction - Mean Visual Acuity was performed using a Snellen eye chart with glasses. The line change from baseline at each follow-up evaluation in logarithm of the minimum angle of resolution (logMAR) was calculated. A logMAR value of 0 equates to 20/20 Snellen visual acuity (normal distance eyesight), with a lower logMAR value indicating better visual acuity.
Mean Surgically Induced Astigmatism - Autorefractor ReadingMonth 12
Mean Change From Baseline in Surgically Induced Astigmatism - Autorefractor ReadingBaseline (Preoperative) and Month 12
Mean Change From Baseline in Surgically Induced Astigmatism - Topography at Selected SitesBaseline (Preoperative), Week 1, and Months 1 and 12
Mean Change From Baseline in Optical Biometry - Anterior Chamber DepthBaseline, Day 1 and Week 2
Mean Change in From Baseline Optical Biometry - Keratometry (K)1, K2, Delta DBaseline, Day 1 and Week 2The keratometric values for keratometry (K) measured in 2 meridians (i.e., flat keratometry \[K1\] and steep keratometry \[K2\]) along with Delta (D) were determined.
Bleb Morphology - Anterior Segment Optical Coherence Tomography (AS-OCT) at Selected SitesUp to Month 12
Bleb Morphology - Slit Lamp Photography at Selected SitesUp to Month 12
Percentage of Participants With Clinical HypotonyMonth 12Clinical hypotony was defined as vision reduction (2 lines or more) related to macular changes consistent with hypotony maculopathy (macular folds), optic disc edema, and/or serous choroidal detachments because of low IOP.
Percentage of Eyes With IOP 6 mm Hg or Less at Any Time Point and Relevant Clinical AssessmentUp to Month 12Eyes with IOP 6 mm Hg or less at any time point and relevant clinical assessment (vision reduction \[2 lines or more\] related to macular changes consistent with hypotony maculopathy \[macular folds\], optic disc edema, anterior chamber status, and/or serous choroidal detachments because of low IOP) of these eyes at those time points were assessed. Only data from study eyes are included. The worse eye was selected as the study eye if both eyes met the inclusion criteria. The worse eye was defined using the visual field MD at Baseline, with the worse eye having the most negative MD. In cases where the MD was the same in both eyes to two decimal places, the worse eye was defined as the eye with the higher IOP.
Percentage of Participants With Specific Intraoperative Adverse Events of Special Interest (AESIs)Median follow-up of 366.0 daysAn adverse event(AE)is any untoward medical occurrence in a clinical investigation participant administered drug; it does not necessarily have to have a causal relationship with the treatment. Intraoperative AESIs included- Detached Descemet's membrane,iris damage,lens contact,vitreous bulge or loss,anterior chamber bleeding,retrobulbar hemorrhage,conjunctival perforation,conjunctival or scleral flap tearing,shallow anterior chamber with peripheral iridocorneal touch,flat anterior chamber with iridocorneal touch extending to the pupil,device malfunction identified prior to implantation,and choroidal hemorrhage of effusion. Only categories with at least one participant with event in the study eye are reported. The worse eye was selected as the study eye if both eyes met inclusion criteria. The worse eye was defined using visual field MD at Baseline, with the worse eye having the most negative MD. If MD was same in both eyes to two decimal places, the worse eye=eye with higher IOP.
Percentage of Participants With Postoperative Treatment-Emergent Adverse Events of Special Interest (AESIs)Median follow-up of 366.0 daysAE=any untoward medical occurrence in a clinical investigation participant administered drug;it does not necessarily have to have a causal relationship with the treatment. TEAE is an AE either reported for the first time or worsening of a pre-existing event after first dose of study drug and within 30 days of the last administration of study drug. Postoperative AEs included but were not limited to: angle recession, anterior chamber changes, BCVA loss,bleb leak, blebitis, cataract, choroidal effusion, chronic pain, corneal edema, cyclodialysis, Dellen, device malfunction, endophthalmitis, fixed dilated pupil, hyphema, hypotony, implant issues, increase in corneal thickness/IOP, explant, iridodialysis, iritis, loss of eye, etc.Worse eye=eye if both eyes met inclusion criteria. Worse eye was defined using visual field MD at Baseline, with worse eye having the most negative MD. In cases where MD was the same in both eyes to two decimal places, worse eye was defined as eye with higher IOP.
Percentage of Participants With BCVA Worst Line Change From Baseline Across Follow-UpBaseline up to Month 12The categories = Worsening (\<-2), No Change (≥-2 and ≥2), Improving (\>2) and Missing were used for determining BCVA worst line change from Baseline. Only categories with at least one participant with event are reported.
Pachymetry Based on Change From Baseline In Average Central Corneal ThicknessBaseline (Preoperative) and Month 12Pachymetry was measured as average central corneal thickness (microns/micrometer) change from Baseline.
Change From Baseline in Visual Field Examinations Analyzed by Machine TypeBaseline and Month 12All visual field examination data were collected and reported as mean deviation by Humphrey machine.
Percentage of Participants With at Least One Adverse Event (AE), Serious Adverse Events (SAEs), Adverse Device Effects (ADEs) and Serious ADEs (SADEs)Median follow-up of 366.0 daysAE=any untoward medical occurrence in a clinical investigation participant administered drug; it does not necessarily have to have a causal relationship with the treatment. An SAE was defined as any untoward medical occurrence that: 1) results in death, 2) is life-threatening, 3) requires inpatient hospitalization or prolongation of existing hospitalization, 4) results in persistent or significant disability/incapacity, 5) leads to a congenital anomaly/birth defect in the offspring of the participant or 6) is a medically important event that satisfies any of the following: a) May require intervention to prevent items 1 through 5 above. b) May expose the participant to danger, even though the event is not immediately life threatening or fatal or does not result in hospitalization. ADEs and SADEs are AEs and SAEs that are caused by the device
Patient-reported Outcomes (PRO): Change From Baseline in Symptom and Health Problem Checklist (SHPC-18) ScoresBaseline (Preoperative) to Month 6The SHPC-18 is an 18-item questionnaire that asks participants being treated for glaucoma questions about eye symptoms or problems they may experience. There are two domains: Local Eye Symptoms (7 items) subscale score 0 to 700 divided by 7 and Visual Function Problem (11 items) subscale score 0 to 1100 divided by 11. The scores of each subscale ranges from from 0 (not at all) to 100 (a lot); higher scores indicate more bother. A frequency score was calculated by summing the individual response scores of each item, and ranges from 0 to 7 for Local Eye Symptom and from 0 to 11 for Visual Function. A total bothersome score for the SHPC-18 is calculated by summing all 18 items scores, resulting in a range from 0 to 1800, then dividing the sum by 18, to create a total bothersome score ranging from 0 (not at all) to 100 (a lot); higher scores indicate more bother. A negative change from Baseline for all scales and subscales indicates improvement.
PRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily RoutineMonth 3Participants answered the question, Since your glaucoma surgery, would you consider that you have resumed your usual activities and daily routine? using the following categories: Not at all, Somewhat, Moderately so, Mostly, Completely.
PRO: Percent Change From Baseline in Work Productivity and Activity Impairment (WPAI): Percent Overall Work Impairment Due to HealthBaseline (Preoperative) and Month 12WPAI-General Health (GH) is 6-question participant rated questionnaire to determine the amount of absenteeism, presenteeism, work productivity loss and daily activity impairment attributable to general health. It yields 5 sub-scores: hours actually worked, work time missed due to health impairment while working, impairment while working due to health, overall work impairment due to health, activity impairment due to health. These sub-scores are transformed to impairment percentages (range from 0 to 100), with higher numbers indicating greater impairment and less productivity. A negative change from Baseline indicates improvement.
PRO: Percent Change From Baseline in WPAI: Percent Activity Impairment Due to HealthBaseline (Preoperative) and Month 12WPAI-General Health (GH) is 6-question participant rated questionnaire to determine the amount of absenteeism, presenteeism, work productivity loss and daily activity impairment attributable to general health. It yields 5 sub-scores: hours actually worked, work time missed due to health impairment while working, impairment while working due to health, overall work impairment due to health, activity impairment due to health. These sub-scores are transformed to impairment percentages (range from 0 to 100), with higher numbers indicating greater impairment and less productivity. A negative change from Baseline indicates improvement.

Countries

United States

Participant flow

Pre-assignment details

One eye, the worse eye, from each participant was selected as the study eye. The worse eye was defined using the visual field mean deviation (MD) at baseline, with the worse eye having the most negative MD. In the case where the MD was the same in both eyes, to two decimal places, the worse eye is defined as the eye with the higher IOP.

Participants by arm

ArmCount
XEN-45 Gel Stent
Participants underwent at least one preoperative visit and had XEN-45 gel stent implantation on Day 0 (The day of surgery).
95
Trabeculectomy
Participants underwent at least one preoperative visit and had trabeculectomy as per standard of care in each investigative center on Day 0 (The day of surgery).
44
Total139

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdditional Glaucoma Surgery (Secondary Surgical Intervention [SSI])71
Overall StudyAdditional Ophthalmic Surgery (Not for Intraocular pressure [IOP] Control)10
Overall StudyAdverse Event in Study Eye30
Overall StudyConsent Withdrawn10
Overall StudyDeath31
Overall StudyDid Not Meet Inclusion Criteria (IC) Diagnosis of Ocular Hypertension (Dx OHT)01
Overall StudyLost to Follow-up33
Overall StudyRandomized, Not Treated: Consent Withdrawn53
Overall StudyRandomized, Not Treated: Investigators Decision (Unrelated to Adverse Event [AE])03
Overall StudyRandomized, Not Treated: Study on-hold due to Device Recall71

Baseline characteristics

CharacteristicXEN-45 Gel StentTrabeculectomyTotal
Age, Continuous69.5 years
STANDARD_DEVIATION 9.64
69.4 years
STANDARD_DEVIATION 9.72
69.5 years
STANDARD_DEVIATION 9.63
Race/Ethnicity, Customized
Ethnicity
0 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
18 Participants10 Participants28 Participants
Race/Ethnicity, Customized
Asian
2 Participants0 Participants2 Participants
Race/Ethnicity, Customized
Black or African American
14 Participants8 Participants22 Participants
Race/Ethnicity, Customized
White or Caucasian
61 Participants26 Participants87 Participants
Sex: Female, Male
Female
41 Participants19 Participants60 Participants
Sex: Female, Male
Male
54 Participants25 Participants79 Participants
Study Eye Intraocular Pressure (IOP)23.13 millimetre of mercury (mm Hg)
STANDARD_DEVIATION 5.817
22.56 millimetre of mercury (mm Hg)
STANDARD_DEVIATION 5.653
22.95 millimetre of mercury (mm Hg)
STANDARD_DEVIATION 5.751

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
3 / 1071 / 51
other
Total, other adverse events
59 / 9538 / 44
serious
Total, serious adverse events
9 / 952 / 44

Outcome results

Primary

Percentage of Participants Achieving at Least 20% Intraocular Pressure (IOP) Reduction (Improvement) From Baseline at Month 12 With Prespecified Caveats

IOP is a measure of the fluid pressure inside the eye. In addition to achieving a 20% reduction of IOP from Baseline, the participants had to meet all of the following prespecified caveats at Month 12: no increase in the number of topical IOP-lowering medications compared to Baseline, no clinical hypotony, no loss of vision to count fingers or worse, and no secondary glaucoma surgical intervention.

Time frame: Baseline (Preoperative) to Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery.

ArmMeasureValue (NUMBER)
XEN-45 Gel StentPercentage of Participants Achieving at Least 20% Intraocular Pressure (IOP) Reduction (Improvement) From Baseline at Month 12 With Prespecified Caveats62.1 percentage of participants
TrabeculectomyPercentage of Participants Achieving at Least 20% Intraocular Pressure (IOP) Reduction (Improvement) From Baseline at Month 12 With Prespecified Caveats68.2 percentage of participants
p-value: 0.48795% CI: [-22.9, 10.8]Chi-squared
Secondary

Bleb Morphology - Anterior Segment Optical Coherence Tomography (AS-OCT) at Selected Sites

Time frame: Up to Month 12

Population: No tabular data was collected. Photographs were taken at select sites to be used for publication purposes.

Secondary

Bleb Morphology - Slit Lamp Photography at Selected Sites

Time frame: Up to Month 12

Population: No tabular data was collected. Photographs were taken at select sites to be used for publication purposes.

Secondary

Change From Baseline in Mean IOP at Month 12

IOP is a measurement of the fluid pressure inside the eye.

Time frame: Baseline (Preoperative) and Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery Overall number analyzed are the number of participants with data available for analyses.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
XEN-45 Gel StentChange From Baseline in Mean IOP at Month 12-8.25 mm HgStandard Error 0.701
TrabeculectomyChange From Baseline in Mean IOP at Month 12-11.02 mm HgStandard Error 1.009
p-value: 0.02495% CI: [0.358, 5.183]Mixed Model for Repeated Measures
Secondary

Change From Baseline in Mean IOP Over Time

IOP is a measurement of the fluid pressure inside the eye.

Time frame: Baseline and Day 1, Weeks 1 and 2, Months 1, 3, 6, 9, and 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Number analyzed is the number of participants with data available for analysis at the specified timepoints.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
XEN-45 Gel StentChange From Baseline in Mean IOP Over TimeChange From Baseline at Day 1-13.63 mm HgStandard Error 0.645
XEN-45 Gel StentChange From Baseline in Mean IOP Over TimeChange From Baseline at Week 1-11.56 mm HgStandard Error 0.66
XEN-45 Gel StentChange From Baseline in Mean IOP Over TimeChange From Baseline at Week 2-9.26 mm HgStandard Error 0.657
XEN-45 Gel StentChange From Baseline in Mean IOP Over TimeChange From Baseline at Month 1-9.15 mm HgStandard Error 0.648
XEN-45 Gel StentChange From Baseline in Mean IOP Over TimeChange From Baseline at Month 3-6.35 mm HgStandard Error 0.663
XEN-45 Gel StentChange From Baseline in Mean IOP Over TimeChange From Baseline at Month 6-7.94 mm HgStandard Error 0.69
XEN-45 Gel StentChange From Baseline in Mean IOP Over TimeChange From Baseline at Month 9-8.19 mm HgStandard Error 0.69
XEN-45 Gel StentChange From Baseline in Mean IOP Over TimeChange From Baseline at Month 12-8.25 mm HgStandard Error 0.701
TrabeculectomyChange From Baseline in Mean IOP Over TimeChange From Baseline at Month 12-11.02 mm HgStandard Error 1.009
TrabeculectomyChange From Baseline in Mean IOP Over TimeChange From Baseline at Day 1-7.82 mm HgStandard Error 0.958
TrabeculectomyChange From Baseline in Mean IOP Over TimeChange From Baseline at Month 3-11.09 mm HgStandard Error 0.977
TrabeculectomyChange From Baseline in Mean IOP Over TimeChange From Baseline at Week 1-11.34 mm HgStandard Error 0.958
TrabeculectomyChange From Baseline in Mean IOP Over TimeChange From Baseline at Month 9-11.72 mm HgStandard Error 0.978
TrabeculectomyChange From Baseline in Mean IOP Over TimeChange From Baseline at Week 2-11.29 mm HgStandard Error 0.958
TrabeculectomyChange From Baseline in Mean IOP Over TimeChange From Baseline at Month 6-10.95 mm HgStandard Error 0.978
TrabeculectomyChange From Baseline in Mean IOP Over TimeChange From Baseline at Month 1-11.37 mm HgStandard Error 0.958
Comparison: Change From Baseline in Mean IOP Over Time: Day 1p-value: <0.00195% CI: [-8.074, -3.538]Mixed Model for Repeated Measures
Comparison: Change From Baseline in Mean IOP Over Time: Week 1p-value: 0.85195% CI: [-2.503, 2.066]Mixed Model for Repeated Measures
Comparison: Change From Baseline in Mean IOP Over Time: Week 2p-value: 0.08195% CI: [-0.253, 4.309]Mixed Model for Repeated Measures
Comparison: Change From Baseline in Mean IOP Over Time: Month 1p-value: 0.05695% CI: [-0.059, 4.484]Mixed Model for Repeated Measures
Comparison: Change From Baseline in Mean IOP Over Time: Month 3p-value: <0.00195% CI: [2.416, 7.054]Mixed Model for Repeated Measures
Comparison: Change From Baseline in Mean IOP Over Time: Month 6p-value: 0.01295% CI: [0.657, 5.358]Mixed Model for Repeated Measures
Comparison: Change From Baseline in Mean IOP Over Time: Month 9p-value: 0.00395% CI: [1.182, 5.883]Mixed Model for Repeated Measures
Comparison: Change From Baseline in Mean IOP Over Time: Month 12p-value: 0.02495% CI: [0.358, 5.183]Mixed Model for Repeated Measures
Secondary

Change From Baseline in Mean Number of Topical IOP-Lowering Medications at Month 12

IOP is a measurement of the fluid pressure inside the eye. Topical IOP-lowering medication classes included: prostaglandin analogues, beta adrenergic antagonists, carbonic anhydrase inhibitors, alpha adrenergic agonists, pilocarpine, and combinations of these treatments.

Time frame: Baseline (Preoperative) and Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Overall number analyzed are the number of participants with data available for analyses.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
XEN-45 Gel StentChange From Baseline in Mean Number of Topical IOP-Lowering Medications at Month 12-1.7 medicationsStandard Error 0.08
TrabeculectomyChange From Baseline in Mean Number of Topical IOP-Lowering Medications at Month 12-2.0 medicationsStandard Error 0.11
p-value: 0.05295% CI: [0, 0.54]Mixed Model for Repeated Measures
Secondary

Change From Baseline in Mean Number of Topical IOP-Lowering Medications Over Time

IOP is a measurement of the fluid pressure inside the eye. Topical IOP-lowering medication classes included: prostaglandin analogues, beta adrenergic antagonists, carbonic anhydrase inhibitors,alpha adrenergic agonists, pilocarpine, and combinations of these treatments.

Time frame: Baseline and Day 1, Weeks 1 and 2, Months 1, 3, 6, 9, and 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Number analyzed is the number of participants with data available for analysis at the specified timepoints.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
XEN-45 Gel StentChange From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeChange From Baseline at Day 1-2.1 medicationsStandard Error 0.08
XEN-45 Gel StentChange From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeChange From Baseline at Week 1-2.0 medicationsStandard Error 0.08
XEN-45 Gel StentChange From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeChange From Baseline at Week 2-2.0 medicationsStandard Error 0.08
XEN-45 Gel StentChange From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeChange From Baseline at Month 1-2.0 medicationsStandard Error 0.08
XEN-45 Gel StentChange From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeChange From Baseline at Month 3-1.8 medicationsStandard Error 0.08
XEN-45 Gel StentChange From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeChange From Baseline at Month 6-1.7 medicationsStandard Error 0.08
XEN-45 Gel StentChange From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeChange From Baseline at Month 9-1.7 medicationsStandard Error 0.08
XEN-45 Gel StentChange From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeChange From Baseline at Month 12-1.7 medicationsStandard Error 0.08
TrabeculectomyChange From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeChange From Baseline at Month 12-2.0 medicationsStandard Error 0.11
TrabeculectomyChange From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeChange From Baseline at Day 1-2.0 medicationsStandard Error 0.11
TrabeculectomyChange From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeChange From Baseline at Month 3-2.2 medicationsStandard Error 0.11
TrabeculectomyChange From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeChange From Baseline at Week 1-2.0 medicationsStandard Error 0.11
TrabeculectomyChange From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeChange From Baseline at Month 9-2.0 medicationsStandard Error 0.11
TrabeculectomyChange From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeChange From Baseline at Week 2-2.1 medicationsStandard Error 0.11
TrabeculectomyChange From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeChange From Baseline at Month 6-2.0 medicationsStandard Error 0.11
TrabeculectomyChange From Baseline in Mean Number of Topical IOP-Lowering Medications Over TimeChange From Baseline at Month 1-2.1 medicationsStandard Error 0.11
Comparison: Change from Baseline in Mean Number of Topical IOP-Lowering Medications Over Time: Day 1p-value: 0.50595% CI: [-0.36, 0.18]Mixed Model for Repeated Measures
Comparison: Change from Baseline in Mean Number of Topical IOP-Lowering Medications Over Time: Week 1p-value: 0.94995% CI: [-0.28, 0.26]Mixed Model for Repeated Measures
Comparison: Change from Baseline in Mean Number of Topical IOP-Lowering Medications Over Time: Week 2p-value: 0.58195% CI: [-0.19, 0.34]Mixed Model for Repeated Measures
Comparison: Change from Baseline in Mean Number of Topical IOP-Lowering Medications Over Time: Month 1p-value: 0.30295% CI: [-0.13, 0.41]Mixed Model for Repeated Measures
Comparison: Change from Baseline in Mean Number of Topical IOP-Lowering Medications Over Time: Month 3p-value: 0.00595% CI: [0.12, 0.66]Mixed Model for Repeated Measures
Comparison: Change from Baseline in Mean Number of Topical IOP-Lowering Medications Over Time: Month 6p-value: 0.02695% CI: [0.04, 0.59]Mixed Model for Repeated Measures
Comparison: Change from Baseline in Mean Number of Topical IOP-Lowering Medications Over Time: Month 9p-value: 0.0195% CI: [0.09, 0.64]Mixed Model for Repeated Measures
Comparison: Change from Baseline in Mean Number of Topical IOP-Lowering Medications Over Time: Month 12p-value: 0.05295% CI: [0, 0.54]Mixed Model for Repeated Measures
Secondary

Change From Baseline in Visual Field Examinations Analyzed by Machine Type

All visual field examination data were collected and reported as mean deviation by Humphrey machine.

Time frame: Baseline and Month 12

Population: Safety Population included all enrolled participants that have undergone study glaucoma surgery. Overall number analyzed are the number of participants with data available for analyses.

ArmMeasureValue (MEAN)Dispersion
XEN-45 Gel StentChange From Baseline in Visual Field Examinations Analyzed by Machine Type-0.051 decibel (dB)Standard Deviation 4.5578
TrabeculectomyChange From Baseline in Visual Field Examinations Analyzed by Machine Type-0.356 decibel (dB)Standard Deviation 3.0171
Secondary

Change in Mean IOP From Preoperative Baseline Over Time in Participants With Eyes With Baseline IOP ≤18 mm Hg

IOP is a measurement of the fluid pressure inside the eye.

Time frame: Baseline (Preoperative) and Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Overall number analyzed are the number of participants with Baseline IOP ≤18 mmHg in the ITT population and data available for analyses.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
XEN-45 Gel StentChange in Mean IOP From Preoperative Baseline Over Time in Participants With Eyes With Baseline IOP ≤18 mm Hg-2.83 mm HgStandard Error 1.281
TrabeculectomyChange in Mean IOP From Preoperative Baseline Over Time in Participants With Eyes With Baseline IOP ≤18 mm Hg-4.61 mm HgStandard Error 1.801
p-value: 0.42195% CI: [-2.579, 6.151]Mixed model repeated measures
Secondary

Change in Number of Topical IOP-Lowering Medications From Preoperative Baseline to Month 12 in Participants With Eyes With Baseline IOP ≤18 mm Hg

Topical IOP-lowering medication classes included: prostaglandin analogues, beta adrenergic antagonists, carbonic anhydrase inhibitors, alpha adrenergic agonists, pilocarpine, and combinations of these treatments.

Time frame: Baseline (Preoperative) and Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Overall number analyzed are the number of participants with Baseline IOP ≤18 mmHg in the ITT population and data available for analyses.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
XEN-45 Gel StentChange in Number of Topical IOP-Lowering Medications From Preoperative Baseline to Month 12 in Participants With Eyes With Baseline IOP ≤18 mm Hg-1.8 medicationsStandard Error 0.15
TrabeculectomyChange in Number of Topical IOP-Lowering Medications From Preoperative Baseline to Month 12 in Participants With Eyes With Baseline IOP ≤18 mm Hg-2.1 medicationsStandard Error 0.2
p-value: 0.1895% CI: [-0.16, 0.84]Mixed Model for Repeated Measures
Secondary

Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current Glasses

BCVA was performed using a Snellen eye chart with glasses, and the BCVA data collected in the visual acuity electronic case report form (eCRF) page was analyzed. The number of lines read correctly was assessed as the line change from baseline at each follow-up evaluation and were log transformed. A logMAR value of 0 equates to 20/20 Snellen visual acuity (normal distance eyesight), with a lower and negative logMAR value indicating better visual acuity.

Time frame: Baseline and Day 1, Weeks 1 and 2, and Months 1, 3, 6, 9, and 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Number analyzed is the number of participants with data available for analysis at the given timepoint.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
XEN-45 Gel StentMean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesChange From Baseline at Day 1-1.4 Log10 (Lines)Standard Error 0.2
XEN-45 Gel StentMean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesChange From Baseline at Week 1-1.2 Log10 (Lines)Standard Error 0.2
XEN-45 Gel StentMean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesChange From Baseline at Week 2-1.1 Log10 (Lines)Standard Error 0.2
XEN-45 Gel StentMean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesChange From Baseline at Month 1-0.6 Log10 (Lines)Standard Error 0.2
XEN-45 Gel StentMean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesChange From Baseline at Month 3-0.4 Log10 (Lines)Standard Error 0.2
XEN-45 Gel StentMean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesChange From Baseline at Month 6-0.4 Log10 (Lines)Standard Error 0.21
XEN-45 Gel StentMean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesChange From Baseline at Month 9-0.4 Log10 (Lines)Standard Error 0.21
XEN-45 Gel StentMean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesChange From Baseline at Month 12-0.1 Log10 (Lines)Standard Error 0.21
TrabeculectomyMean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesChange From Baseline at Month 12-0.8 Log10 (Lines)Standard Error 0.31
TrabeculectomyMean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesChange From Baseline at Day 1-2.5 Log10 (Lines)Standard Error 0.29
TrabeculectomyMean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesChange From Baseline at Month 3-0.5 Log10 (Lines)Standard Error 0.3
TrabeculectomyMean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesChange From Baseline at Week 1-2.4 Log10 (Lines)Standard Error 0.29
TrabeculectomyMean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesChange From Baseline at Month 9-1.0 Log10 (Lines)Standard Error 0.3
TrabeculectomyMean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesChange From Baseline at Week 2-1.6 Log10 (Lines)Standard Error 0.29
TrabeculectomyMean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesChange From Baseline at Month 6-0.4 Log10 (Lines)Standard Error 0.3
TrabeculectomyMean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current GlassesChange From Baseline at Month 1-1.1 Log10 (Lines)Standard Error 0.3
Comparison: Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current Glasses: Day 1p-value: 0.00495% CI: [0.33, 1.72]Mixed Model for Repeated Measures
Comparison: Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current Glasses:Week 1p-value: 0.00195% CI: [0.47, 1.88]Mixed Model for Repeated Measures
Comparison: Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current Glasses:Week 2p-value: 0.16295% CI: [-0.2, 1.2]Mixed Model for Repeated Measures
Comparison: Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current Glasses:Month 1p-value: 0.18595% CI: [-0.23, 1.19]Mixed Model for Repeated Measures
Comparison: Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current Glasses:Month 3p-value: 0.84695% CI: [-0.64, 0.79]Mixed Model for Repeated Measures
Comparison: Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current Glasses:Month 6p-value: 0.96595% CI: [-0.73, 0.7]Mixed Model for Repeated Measures
Comparison: Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current Glasses:Month 9p-value: 0.09695% CI: [-0.11, 1.33]Mixed Model for Repeated Measures
Comparison: Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) With Current Glasses:Month 12p-value: 0.06395% CI: [-0.04, 1.43]Mixed Model for Repeated Measures
Secondary

Mean Change From Baseline in Manifest Refraction - Mean Visual Acuity Using Snellen Eye Chart in LogMAR Scale

Manifest Refraction - Mean Visual Acuity was performed using a Snellen eye chart with glasses. The line change from baseline at each follow-up evaluation in logarithm of the minimum angle of resolution (logMAR) was calculated. A logMAR value of 0 equates to 20/20 Snellen visual acuity (normal distance eyesight), with a lower logMAR value indicating better visual acuity.

Time frame: Baseline (Preoperative) and postoperative Months 1, 3, 6, and 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Number analyzed is the number of participants with data available for analysis at the given timepoint.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
XEN-45 Gel StentMean Change From Baseline in Manifest Refraction - Mean Visual Acuity Using Snellen Eye Chart in LogMAR ScaleChange From Baseline at Month 10.05 logMARStandard Error 0.015
XEN-45 Gel StentMean Change From Baseline in Manifest Refraction - Mean Visual Acuity Using Snellen Eye Chart in LogMAR ScaleChange From Baseline at Month 30.04 logMARStandard Error 0.016
XEN-45 Gel StentMean Change From Baseline in Manifest Refraction - Mean Visual Acuity Using Snellen Eye Chart in LogMAR ScaleChange From Baseline at Month 60.04 logMARStandard Error 0.016
XEN-45 Gel StentMean Change From Baseline in Manifest Refraction - Mean Visual Acuity Using Snellen Eye Chart in LogMAR ScaleChange From Baseline at Month 120.01 logMARStandard Error 0.016
TrabeculectomyMean Change From Baseline in Manifest Refraction - Mean Visual Acuity Using Snellen Eye Chart in LogMAR ScaleChange From Baseline at Month 120.07 logMARStandard Error 0.022
TrabeculectomyMean Change From Baseline in Manifest Refraction - Mean Visual Acuity Using Snellen Eye Chart in LogMAR ScaleChange From Baseline at Month 10.10 logMARStandard Error 0.022
TrabeculectomyMean Change From Baseline in Manifest Refraction - Mean Visual Acuity Using Snellen Eye Chart in LogMAR ScaleChange From Baseline at Month 60.04 logMARStandard Error 0.022
TrabeculectomyMean Change From Baseline in Manifest Refraction - Mean Visual Acuity Using Snellen Eye Chart in LogMAR ScaleChange From Baseline at Month 30.05 logMARStandard Error 0.022
Comparison: Mean Change From Baseline in Manifest Refraction - Mean Visual Acuity Using Snellen in LogMAR Scale: Month 1p-value: 0.04895% CI: [-0.105, 0]Mixed Model for Repeated Measures
Comparison: Mean Change From Baseline in Manifest Refraction - Mean Visual Acuity Using Snellen in LogMAR Scale: Month 3p-value: 0.74295% CI: [-0.062, 0.045]Mixed Model for Repeated Measures
Comparison: Mean Change From Baseline in Manifest Refraction - Mean Visual Acuity Using Snellen in LogMAR Scale: Month 6p-value: 0.92595% CI: [-0.056, 0.051]Mixed Model for Repeated Measures
Comparison: Mean Change From Baseline in Manifest Refraction - Mean Visual Acuity Using Snellen in LogMAR Scale: Month 12p-value: 0.02195% CI: [-0.118, -0.01]Mixed Model for Repeated Measures
Secondary

Mean Change From Baseline in Optical Biometry - Anterior Chamber Depth

Time frame: Baseline, Day 1 and Week 2

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Overall Number of Participants Analyzed is the number of participants with data available for analyses at Baseline. Number Analyzed is the number of participants with data available for analyses at Baseline and the given timepoint.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
XEN-45 Gel StentMean Change From Baseline in Optical Biometry - Anterior Chamber DepthChange from Baseline at Day 1-0.183 millimeterStandard Error 0.1295
XEN-45 Gel StentMean Change From Baseline in Optical Biometry - Anterior Chamber DepthChange from Baseline at Week 2-0.206 millimeterStandard Error 0.1195
TrabeculectomyMean Change From Baseline in Optical Biometry - Anterior Chamber DepthChange from Baseline at Day 1-0.182 millimeterStandard Error 0.1553
TrabeculectomyMean Change From Baseline in Optical Biometry - Anterior Chamber DepthChange from Baseline at Week 2-0.427 millimeterStandard Error 0.1732
Comparison: Mean Change in Optical Biometry - Anterior Chamber Depth at Day 1p-value: 0.99795% CI: [-0.4103, 0.4086]Mixed Model for Repeated Measures
Comparison: Mean Change in Optical Biometry - Anterior Chamber Depth at Week 2p-value: 0.30295% CI: [-0.2068, 0.6506]Mixed Model for Repeated Measures
Secondary

Mean Change From Baseline in Surgically Induced Astigmatism - Autorefractor Reading

Time frame: Baseline (Preoperative) and Month 12

Population: No data is reported due to inaccuracy of the results (autorefractor reading errors).

Secondary

Mean Change From Baseline in Surgically Induced Astigmatism - Topography at Selected Sites

Time frame: Baseline (Preoperative), Week 1, and Months 1 and 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Overall Number of Participants Analyzed is the number of participants with data available for analyses at Baseline. Number Analyzed is the number of participants with data available for analyses at Baseline and the given timepoint.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
XEN-45 Gel StentMean Change From Baseline in Surgically Induced Astigmatism - Topography at Selected SitesChange From Baseline at Month 120.106 dioptersStandard Error 0.1976
XEN-45 Gel StentMean Change From Baseline in Surgically Induced Astigmatism - Topography at Selected SitesChange From Baseline at Week 10.057 dioptersStandard Error 0.1861
XEN-45 Gel StentMean Change From Baseline in Surgically Induced Astigmatism - Topography at Selected SitesChange From Baseline at Month 10.187 dioptersStandard Error 0.1931
TrabeculectomyMean Change From Baseline in Surgically Induced Astigmatism - Topography at Selected SitesChange From Baseline at Month 120.558 dioptersStandard Error 0.286
TrabeculectomyMean Change From Baseline in Surgically Induced Astigmatism - Topography at Selected SitesChange From Baseline at Week 10.619 dioptersStandard Error 0.2639
TrabeculectomyMean Change From Baseline in Surgically Induced Astigmatism - Topography at Selected SitesChange From Baseline at Month 10.326 dioptersStandard Error 0.2741
Comparison: Mean Change from Baseline in Surgically Induced Astigmatism - Topography at Selected Sites at Week 1p-value: 0.08795% CI: [-1.2082, 0.0851]Mixed Model for Repeated Measures
Comparison: Mean Change from Baseline in Surgically Induced Astigmatism - Topography at Selected Sites at Month 1p-value: 0.68295% CI: [-0.809, 0.5324]Mixed Model for Repeated Measures
Comparison: Mean Change from Baseline in Surgically Induced Astigmatism - Topography at Selected Sites at Month 12p-value: 0.19995% CI: [-1.1483, 0.2434]Mixed Model for Repeated Measures
Secondary

Mean Change in From Baseline Optical Biometry - Keratometry (K)1, K2, Delta D

The keratometric values for keratometry (K) measured in 2 meridians (i.e., flat keratometry \[K1\] and steep keratometry \[K2\]) along with Delta (D) were determined.

Time frame: Baseline, Day 1 and Week 2

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Overall Number of Participants Analyzed is the number of participants with data available for analyses at Baseline. Number Analyzed is the number of participants with data available for analyses at Baseline and the given timepoint.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
XEN-45 Gel StentMean Change in From Baseline Optical Biometry - Keratometry (K)1, K2, Delta DK1, Change from Baseline at Day 1-0.103 diopterStandard Error 0.2195
XEN-45 Gel StentMean Change in From Baseline Optical Biometry - Keratometry (K)1, K2, Delta DK1, Change from Baseline at Week 20.156 diopterStandard Error 0.1973
XEN-45 Gel StentMean Change in From Baseline Optical Biometry - Keratometry (K)1, K2, Delta DK2, Change from Baseline at Day 10.373 diopterStandard Error 0.2947
XEN-45 Gel StentMean Change in From Baseline Optical Biometry - Keratometry (K)1, K2, Delta DK2, Change from Baseline at Week 20.152 diopterStandard Error 0.2626
XEN-45 Gel StentMean Change in From Baseline Optical Biometry - Keratometry (K)1, K2, Delta DDelta D, Change from Baseline at Day 10.514 diopterStandard Error 0.2967
XEN-45 Gel StentMean Change in From Baseline Optical Biometry - Keratometry (K)1, K2, Delta DDelta D, Change from Baseline at Week 20.087 diopterStandard Error 0.2636
TrabeculectomyMean Change in From Baseline Optical Biometry - Keratometry (K)1, K2, Delta DDelta D, Change from Baseline at Day 11.279 diopterStandard Error 0.3372
TrabeculectomyMean Change in From Baseline Optical Biometry - Keratometry (K)1, K2, Delta DK1, Change from Baseline at Day 1-0.446 diopterStandard Error 0.2512
TrabeculectomyMean Change in From Baseline Optical Biometry - Keratometry (K)1, K2, Delta DK2, Change from Baseline at Week 20.640 diopterStandard Error 0.3499
TrabeculectomyMean Change in From Baseline Optical Biometry - Keratometry (K)1, K2, Delta DK1, Change from Baseline at Week 2-0.105 diopterStandard Error 0.2618
TrabeculectomyMean Change in From Baseline Optical Biometry - Keratometry (K)1, K2, Delta DDelta D, Change from Baseline at Week 20.664 diopterStandard Error 0.3527
TrabeculectomyMean Change in From Baseline Optical Biometry - Keratometry (K)1, K2, Delta DK2, Change from Baseline at Day 10.783 diopterStandard Error 0.3342
Comparison: Mean Change in from Baseline Optical Biometry - K1 at Day 1p-value: 0.30995% CI: [-0.3289, 1.0154]Mixed Model for Repeated Measures
Comparison: Mean Change in from Baseline Optical Biometry - K1 at Week 2p-value: 0.4395% CI: [-0.3993, 0.922]Mixed Model for Repeated Measures
Comparison: Mean Change in from Baseline Optical Biometry - K2 at Day 1p-value: 0.36395% CI: [-1.3071, 0.4882]Mixed Model for Repeated Measures
Comparison: Mean Change in from Baseline Optical Biometry - K2 at Week 2p-value: 0.27295% CI: [-1.3709, 0.3954]Mixed Model for Repeated Measures
Comparison: Mean Change in from Baseline Optical Biometry - Delta D at Day 1p-value: 0.09695% CI: [-1.6722, 0.142]Mixed Model for Repeated Measures
Comparison: Mean Change in from Baseline Optical Biometry - Delta D at Week 2p-value: 0.19895% CI: [-1.4655, 0.3129]Mixed Model for Repeated Measures
Secondary

Mean IOP Over Time

IOP is a measurement of the fluid pressure inside the eye.

Time frame: Baseline and Day 1, Weeks 1 and 2, Months 1, 3, 6, 9, and 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Number analyzed is the number of participants with data available for analysis at the specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
XEN-45 Gel StentMean IOP Over TimeDay 19.25 mm HgStandard Deviation 4.71
XEN-45 Gel StentMean IOP Over TimeMonth 316.46 mm HgStandard Deviation 7.407
XEN-45 Gel StentMean IOP Over TimeWeek 213.64 mm HgStandard Deviation 8.363
XEN-45 Gel StentMean IOP Over TimeWeek 111.27 mm HgStandard Deviation 6.864
XEN-45 Gel StentMean IOP Over TimeMonth 914.57 mm HgStandard Deviation 4.221
XEN-45 Gel StentMean IOP Over TimeMonth 113.72 mm HgStandard Deviation 6.315
XEN-45 Gel StentMean IOP Over TimeMonth 1214.43 mm HgStandard Deviation 4.06
XEN-45 Gel StentMean IOP Over TimeMonth 614.86 mm HgStandard Deviation 4.228
TrabeculectomyMean IOP Over TimeMonth 1211.83 mm HgStandard Deviation 3.525
TrabeculectomyMean IOP Over TimeDay 115.00 mm HgStandard Deviation 13.025
TrabeculectomyMean IOP Over TimeWeek 111.48 mm HgStandard Deviation 7.323
TrabeculectomyMean IOP Over TimeWeek 211.53 mm HgStandard Deviation 5.503
TrabeculectomyMean IOP Over TimeMonth 111.45 mm HgStandard Deviation 5.645
TrabeculectomyMean IOP Over TimeMonth 311.59 mm HgStandard Deviation 4.672
TrabeculectomyMean IOP Over TimeMonth 611.72 mm HgStandard Deviation 5.242
TrabeculectomyMean IOP Over TimeMonth 911.02 mm HgStandard Deviation 3.535
Secondary

Mean Number of Needlings Per Eye

Needling of eye involves breaking down the wall of the scar using a fine needle to improve the drainage of fluid inside the eye.

Time frame: Up to Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Overall number analyzed are the number of participants who had needlings with evaluable assessment at a specific timepoint.

ArmMeasureValue (MEAN)Dispersion
XEN-45 Gel StentMean Number of Needlings Per Eye1.7 needlingsStandard Deviation 1.03
TrabeculectomyMean Number of Needlings Per Eye1.4 needlingsStandard Deviation 0.74
Secondary

Mean Number of Topical IOP-Lowering Medications Over Time

IOP is a measurement of the fluid pressure inside the eye. Topical IOP-lowering medication classes included: prostaglandin analogues, beta adrenergic antagonists, carbonic anhydrase inhibitors,alpha adrenergic agonists, pilocarpine, and combinations of these treatments.

Time frame: Baseline and Day 1, Weeks 1 and 2, Months 1, 3, 6, 9, and 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Number analyzed is the number of participants with data available for analysis at the specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
XEN-45 Gel StentMean Number of Topical IOP-Lowering Medications Over TimeDay 10.2 medicationsStandard Deviation 0.51
XEN-45 Gel StentMean Number of Topical IOP-Lowering Medications Over TimeWeek 10.3 medicationsStandard Deviation 0.77
XEN-45 Gel StentMean Number of Topical IOP-Lowering Medications Over TimeWeek 20.3 medicationsStandard Deviation 0.64
XEN-45 Gel StentMean Number of Topical IOP-Lowering Medications Over TimeMonth 10.3 medicationsStandard Deviation 0.75
XEN-45 Gel StentMean Number of Topical IOP-Lowering Medications Over TimeMonth 30.5 medicationsStandard Deviation 0.89
XEN-45 Gel StentMean Number of Topical IOP-Lowering Medications Over TimeMonth 60.6 medicationsStandard Deviation 0.96
XEN-45 Gel StentMean Number of Topical IOP-Lowering Medications Over TimeMonth 90.6 medicationsStandard Deviation 1.09
XEN-45 Gel StentMean Number of Topical IOP-Lowering Medications Over TimeMonth 120.6 medicationsStandard Deviation 0.95
TrabeculectomyMean Number of Topical IOP-Lowering Medications Over TimeMonth 120.3 medicationsStandard Deviation 0.5
TrabeculectomyMean Number of Topical IOP-Lowering Medications Over TimeDay 10.3 medicationsStandard Deviation 0.53
TrabeculectomyMean Number of Topical IOP-Lowering Medications Over TimeMonth 30.1 medicationsStandard Deviation 0.26
TrabeculectomyMean Number of Topical IOP-Lowering Medications Over TimeWeek 10.3 medicationsStandard Deviation 0.73
TrabeculectomyMean Number of Topical IOP-Lowering Medications Over TimeMonth 90.2 medicationsStandard Deviation 0.49
TrabeculectomyMean Number of Topical IOP-Lowering Medications Over TimeWeek 20.2 medicationsStandard Deviation 0.53
TrabeculectomyMean Number of Topical IOP-Lowering Medications Over TimeMonth 60.2 medicationsStandard Deviation 0.58
TrabeculectomyMean Number of Topical IOP-Lowering Medications Over TimeMonth 10.1 medicationsStandard Deviation 0.52
Secondary

Mean Surgically Induced Astigmatism - Autorefractor Reading

Time frame: Month 12

Population: No data is reported due to inaccuracy of the results (autorefractor reading errors).

Secondary

Pachymetry Based on Change From Baseline In Average Central Corneal Thickness

Pachymetry was measured as average central corneal thickness (microns/micrometer) change from Baseline.

Time frame: Baseline (Preoperative) and Month 12

Population: Safety Population included all enrolled participants that have undergone study glaucoma surgery. Overall number analyzed are the number of participants with data available for analyses.

ArmMeasureValue (MEAN)Dispersion
XEN-45 Gel StentPachymetry Based on Change From Baseline In Average Central Corneal Thickness-2.0 micrometer (µm)Standard Deviation 21.41
TrabeculectomyPachymetry Based on Change From Baseline In Average Central Corneal Thickness6.4 micrometer (µm)Standard Deviation 12.44
Secondary

Patient-reported Outcomes (PRO): Change From Baseline in Symptom and Health Problem Checklist (SHPC-18) Scores

The SHPC-18 is an 18-item questionnaire that asks participants being treated for glaucoma questions about eye symptoms or problems they may experience. There are two domains: Local Eye Symptoms (7 items) subscale score 0 to 700 divided by 7 and Visual Function Problem (11 items) subscale score 0 to 1100 divided by 11. The scores of each subscale ranges from from 0 (not at all) to 100 (a lot); higher scores indicate more bother. A frequency score was calculated by summing the individual response scores of each item, and ranges from 0 to 7 for Local Eye Symptom and from 0 to 11 for Visual Function. A total bothersome score for the SHPC-18 is calculated by summing all 18 items scores, resulting in a range from 0 to 1800, then dividing the sum by 18, to create a total bothersome score ranging from 0 (not at all) to 100 (a lot); higher scores indicate more bother. A negative change from Baseline for all scales and subscales indicates improvement.

Time frame: Baseline (Preoperative) to Month 6

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Overall number analyzed are the number of participants with data available for analyses.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
XEN-45 Gel StentPatient-reported Outcomes (PRO): Change From Baseline in Symptom and Health Problem Checklist (SHPC-18) ScoresVision Function Problem Score-3.064 score on a scaleStandard Error 2.6759
XEN-45 Gel StentPatient-reported Outcomes (PRO): Change From Baseline in Symptom and Health Problem Checklist (SHPC-18) ScoresLocal Eye Symptoms Frequency Score-0.6 score on a scaleStandard Error 0.25
XEN-45 Gel StentPatient-reported Outcomes (PRO): Change From Baseline in Symptom and Health Problem Checklist (SHPC-18) ScoresTotal Bothersome Score-3.160 score on a scaleStandard Error 2.3564
XEN-45 Gel StentPatient-reported Outcomes (PRO): Change From Baseline in Symptom and Health Problem Checklist (SHPC-18) ScoresVision Function Problem Frequency Score-0.7 score on a scaleStandard Error 0.37
XEN-45 Gel StentPatient-reported Outcomes (PRO): Change From Baseline in Symptom and Health Problem Checklist (SHPC-18) ScoresLocal Eye Symptoms Score-3.328 score on a scaleStandard Error 2.556
TrabeculectomyPatient-reported Outcomes (PRO): Change From Baseline in Symptom and Health Problem Checklist (SHPC-18) ScoresVision Function Problem Frequency Score1.0 score on a scaleStandard Error 0.51
TrabeculectomyPatient-reported Outcomes (PRO): Change From Baseline in Symptom and Health Problem Checklist (SHPC-18) ScoresLocal Eye Symptoms Score-0.297 score on a scaleStandard Error 3.4928
TrabeculectomyPatient-reported Outcomes (PRO): Change From Baseline in Symptom and Health Problem Checklist (SHPC-18) ScoresVision Function Problem Score7.443 score on a scaleStandard Error 3.6965
TrabeculectomyPatient-reported Outcomes (PRO): Change From Baseline in Symptom and Health Problem Checklist (SHPC-18) ScoresTotal Bothersome Score4.368 score on a scaleStandard Error 3.2737
TrabeculectomyPatient-reported Outcomes (PRO): Change From Baseline in Symptom and Health Problem Checklist (SHPC-18) ScoresLocal Eye Symptoms Frequency Score-0.1 score on a scaleStandard Error 0.34
Comparison: PRO: Change From Baseline in Symptom and Health Problem Checklist (SHPC-18)- Local Eye Symptoms Scorep-value: 0.48595% CI: [-11.5597, 5.4973]Mixed Model for Repeated Measures
Comparison: PRO: Change From Baseline in Symptom and Health Problem Checklist (SHPC-18)- Vision Function Problem Scorep-value: 0.02295% CI: [-19.5, -1.5144]Mixed Model for Repeated Measures
Comparison: PRO: Change From Baseline in Symptom and Health Problem Checklist (SHPC-18)- Total Bothersome Scorep-value: 0.06495% CI: [-15.4841, 0.4275]Mixed Model for Repeated Measures
Comparison: PRO: Change From Baseline in Symptom and Health Problem Checklist (SHPC-18)- Local Eye Symptoms Frequency Scorep-value: 0.27895% CI: [-1.28, 0.37]Mixed Model for Repeated Measures
Comparison: PRO: Change From Baseline in Symptom and Health Problem Checklist (SHPC-18)- Vision Function Problem Frequency Scorep-value: 0.00795% CI: [-2.96, -0.47]Mixed Model for Repeated Measures
Secondary

Percentage of Eyes Achieving at Least a 20% Reduction in IOP at Month 12 on the Same or Fewer Topical IOP-lowering Medications in Participants Who Had Needlings

IOP is a measurement of fluid pressure inside the eye. Topical IOP-lowering medication classes include: prostaglandin analogues, beta adrenergic antagonists, carbonic anhydrase inhibitors, alpha adrenergic agonists, pilocarpine, and combinations of these treatments.

Time frame: Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Overall number analyzed are the number of participants who had needlings with evaluable assessment.

ArmMeasureValue (NUMBER)
XEN-45 Gel StentPercentage of Eyes Achieving at Least a 20% Reduction in IOP at Month 12 on the Same or Fewer Topical IOP-lowering Medications in Participants Who Had Needlings87.5 percentage of eyes
TrabeculectomyPercentage of Eyes Achieving at Least a 20% Reduction in IOP at Month 12 on the Same or Fewer Topical IOP-lowering Medications in Participants Who Had Needlings85.7 percentage of eyes
p-value: 195% CI: [-41.6, 44.1]Fisher Exact
Secondary

Percentage of Eyes Not Using Any Topical IOP-lowering Medications in Participants Who Had Needlings

Topical IOP-lowering medication classes included: prostaglandin analogues, beta adrenergic antagonists, carbonic anhydrase inhibitors, alpha adrenergic agonists, pilocarpine, and combinations of these treatments.

Time frame: Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Overall number analyzed are the number of participants who had needlings with evaluable assessment.

ArmMeasureValue (NUMBER)
XEN-45 Gel StentPercentage of Eyes Not Using Any Topical IOP-lowering Medications in Participants Who Had Needlings42.9 percentage of eyes
TrabeculectomyPercentage of Eyes Not Using Any Topical IOP-lowering Medications in Participants Who Had Needlings75.0 percentage of eyes
p-value: 0.21595% CI: [-66.8, 10]Fisher Exact
Secondary

Percentage of Eyes With IOP 6 mm Hg or Less at Any Time Point and Relevant Clinical Assessment

Eyes with IOP 6 mm Hg or less at any time point and relevant clinical assessment (vision reduction \[2 lines or more\] related to macular changes consistent with hypotony maculopathy \[macular folds\], optic disc edema, anterior chamber status, and/or serous choroidal detachments because of low IOP) of these eyes at those time points were assessed. Only data from study eyes are included. The worse eye was selected as the study eye if both eyes met the inclusion criteria. The worse eye was defined using the visual field MD at Baseline, with the worse eye having the most negative MD. In cases where the MD was the same in both eyes to two decimal places, the worse eye was defined as the eye with the higher IOP.

Time frame: Up to Month 12

Population: Safety Population included all enrolled participants/eyes that have undergone study glaucoma surgery.

ArmMeasureValue (NUMBER)
XEN-45 Gel StentPercentage of Eyes With IOP 6 mm Hg or Less at Any Time Point and Relevant Clinical Assessment13.7 percentage of eyes
TrabeculectomyPercentage of Eyes With IOP 6 mm Hg or Less at Any Time Point and Relevant Clinical Assessment29.5 percentage of eyes
Secondary

Percentage of Participants Achieving at Least a 20% IOP Reduction and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12

IOP is a measurement of fluid pressure inside the eye. Specific IOP targets included following IOP values (in mm Hg): ≤18, ≤17, ≤16, ≤15, ≤14, ≤13, ≤12 mm Hg.

Time frame: Baseline (Preoperative) and Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery.

ArmMeasureGroupValue (NUMBER)
XEN-45 Gel StentPercentage of Participants Achieving at Least a 20% IOP Reduction and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12IOP Target ≤16 mm Hg56.8 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving at Least a 20% IOP Reduction and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12IOP Target ≤14 mm Hg50.5 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving at Least a 20% IOP Reduction and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12IOP Target ≤17 mm Hg58.9 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving at Least a 20% IOP Reduction and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12IOP Target ≤13 mm Hg36.8 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving at Least a 20% IOP Reduction and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12IOP Target ≤15 mm Hg55.8 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving at Least a 20% IOP Reduction and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12IOP Target ≤12 mm Hg30.5 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving at Least a 20% IOP Reduction and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12IOP Target ≤18 mm Hg61.1 percentage of participants
TrabeculectomyPercentage of Participants Achieving at Least a 20% IOP Reduction and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12IOP Target ≤12 mm Hg43.2 percentage of participants
TrabeculectomyPercentage of Participants Achieving at Least a 20% IOP Reduction and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12IOP Target ≤18 mm Hg72.7 percentage of participants
TrabeculectomyPercentage of Participants Achieving at Least a 20% IOP Reduction and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12IOP Target ≤17 mm Hg70.5 percentage of participants
TrabeculectomyPercentage of Participants Achieving at Least a 20% IOP Reduction and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12IOP Target ≤16 mm Hg70.5 percentage of participants
TrabeculectomyPercentage of Participants Achieving at Least a 20% IOP Reduction and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12IOP Target ≤15 mm Hg70.5 percentage of participants
TrabeculectomyPercentage of Participants Achieving at Least a 20% IOP Reduction and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12IOP Target ≤14 mm Hg61.4 percentage of participants
TrabeculectomyPercentage of Participants Achieving at Least a 20% IOP Reduction and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12IOP Target ≤13 mm Hg54.5 percentage of participants
Comparison: Percentage of Participants Achieving at Least a 20% IOP Reductions and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12- IOP Target ≤18 mm Hgp-value: 0.25295% CI: [-29, 6.3]Fisher Exact
Comparison: Percentage of Participants Achieving at Least a 20% IOP Reductions and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12- IOP Target ≤17 mmHgp-value: 0.25895% CI: [-28.9, 6.5]Fisher Exact
Comparison: Percentage of Participants Achieving at Least a 20% IOP Reductions and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12- IOP Target ≤16 mm Hgp-value: 0.13995% CI: [-30.9, 4.4]Fisher Exact
Comparison: Percentage of Participants Achieving at Least a 20% IOP Reductions and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12- IOP Target ≤15 mm Hgp-value: 0.13695% CI: [-32, 3.3]Fisher Exact
Comparison: Percentage of Participants Achieving at Least a 20% IOP Reductions and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12- IOP Target ≤14 mm Hgp-value: 0.27495% CI: [-28.2, 7.1]Fisher Exact
Comparison: Percentage of Participants Achieving at Least a 20% IOP Reductions and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12- IOP Target ≤13 mm Hgp-value: 0.06595% CI: [-35, 0.3]Fisher Exact
Comparison: Percentage of Participants Achieving at Least a 20% IOP Reductions and Specific IOP Targets on Same or Lower Number of Topical IOP-Lowering Medications at Month 12- IOP Target ≤12 mmHgp-value: 0.1895% CI: [-30.1, 5.2]Fisher Exact
Secondary

Percentage of Participants Achieving Complete Success at Month 12

Complete success was defined as IOP ≤18mm Hg, with 20% or greater IOP lowering from medicated Baseline, on no topical medications, and no clinical hypotony. The topical medication included any topical ophthalmic medication used on the study eye regardless of the indication and dosage.

Time frame: Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. This outcome measure was analyzed among the participants without topical medication at Baseline Qualifying Visit. Number analyzed is the number of participants with data available for analysis at specific timepoint.

ArmMeasureValue (NUMBER)
XEN-45 Gel StentPercentage of Participants Achieving Complete Success at Month 1244.2 percentage of participants
TrabeculectomyPercentage of Participants Achieving Complete Success at Month 1259.1 percentage of participants
p-value: 0.14495% CI: [-32.2, 3.1]Fisher Exact
Secondary

Percentage of Participants Achieving Qualified Success at Month 12

Qualified success was defined as IOP ≤18 mm Hg, with 20% or greater IOP lowering from medicated Baseline, taking topical medications at Baseline Qualifying Visit, no clinical hypotony. The topical medication included any topical ophthalmic medication used on the study eye regardless of the indication and dosage.

Time frame: Month12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. This outcome measure was analyzed among the participants with topical medication at Baseline Qualifying Visit. Number analyzed is the number of participants with data available for analysis at specific timepoint.

ArmMeasureValue (NUMBER)
XEN-45 Gel StentPercentage of Participants Achieving Qualified Success at Month 1262.1 percentage of participants
TrabeculectomyPercentage of Participants Achieving Qualified Success at Month 1272.7 percentage of participants
p-value: 0.25495% CI: [-28, 7.3]Fisher Exact
Secondary

Percentage of Participants Achieving Specific IOP Targets at Month 12

IOP is a measurement of the fluid pressure inside the eye. Specific IOP targets included following IOP values (in mm Hg): ≤18, ≤17, ≤16, ≤15, ≤14, ≤13, ≤12 mm Hg.

Time frame: Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery.

ArmMeasureGroupValue (NUMBER)
XEN-45 Gel StentPercentage of Participants Achieving Specific IOP Targets at Month 12IOP Value of ≤16 mm Hg62.1 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific IOP Targets at Month 12IOP Value of ≤14 mm Hg50.5 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific IOP Targets at Month 12IOP Value of ≤17 mm Hg64.2 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific IOP Targets at Month 12IOP Value of ≤13 mm Hg36.8 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific IOP Targets at Month 12IOP Value of ≤15 mm Hg55.8 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific IOP Targets at Month 12IOP Value of ≤12 mm Hg30.5 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific IOP Targets at Month 12IOP Value of ≤18 mm Hg68.4 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific IOP Targets at Month 12IOP Value of ≤12 mm Hg43.2 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific IOP Targets at Month 12IOP Value of ≤18 mm Hg84.1 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific IOP Targets at Month 12IOP Value of ≤17 mm Hg79.5 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific IOP Targets at Month 12IOP Value of ≤16 mm Hg79.5 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific IOP Targets at Month 12IOP Value of ≤15 mm Hg72.7 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific IOP Targets at Month 12IOP Value of ≤14 mm Hg63.6 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific IOP Targets at Month 12IOP Value of ≤13 mm Hg56.8 percentage of participants
Comparison: Percentage of Participants Achieving Specific IOP Targets at Month 12: IOP Value of ≤18 mmHgp-value: 0.06495% CI: [-33, 2.3]Fisher Exact
Comparison: Percentage of Participants Achieving Specific IOP Targets at Month 12: IOP Value of ≤17 mmHgp-value: 0.07895% CI: [-32.7, 2.5]Fisher Exact
Comparison: Percentage of Participants Achieving Specific IOP Targets at Month 12: IOP Value of ≤16 mmHgp-value: 0.05195% CI: [-34.7, 0.4]Fisher Exact
Comparison: Percentage of Participants Achieving Specific IOP Targets at Month 12: IOP Value of ≤15 mmHgp-value: 0.06495% CI: [-34.1, 1]Fisher Exact
Comparison: Percentage of Participants Achieving Specific IOP Targets at Month 12: IOP Value of ≤14 mm Hgp-value: 0.295% CI: [-30.5, 4.8]Fisher Exact
Comparison: Percentage of Participants Achieving Specific IOP Targets at Month 12: IOP Value of ≤13 mm Hgp-value: 0.04295% CI: [-37.1, -2]Fisher Exact
Comparison: Percentage of Participants Achieving Specific IOP Targets at Month 12: IOP Value of ≤12 mm Hgp-value: 0.1895% CI: [-30.1, 5.2]Fisher Exact
Secondary

Percentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free Eye

IOP is a measurement of the fluid pressure inside the eye. Specific IOP targets included following IOP values (in mm Hg): ≤18, ≤17, ≤16, ≤15, ≤14, ≤13, ≤12 mm Hg. Medication-free eye at Month 12 was defined as no IOP-lowering medication was used to the study eye at Month 12.

Time frame: Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Overall number analyzed are the number of participants who were medication free at Month 12 with evaluable assessment.

ArmMeasureGroupValue (NUMBER)
XEN-45 Gel StentPercentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free EyeIOP Target ≤16 mm Hg71.2 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free EyeIOP Target ≤14 mm Hg59.3 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free EyeIOP Target ≤17 mm Hg74.6 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free EyeIOP Target ≤13 mm Hg47.5 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free EyeIOP Target ≤15 mm Hg64.4 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free EyeIOP Target ≤12 mm Hg37.3 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free EyeIOP Target ≤18 mm Hg79.7 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free EyeIOP Target ≤12 mm Hg58.1 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free EyeIOP Target ≤18 mm Hg87.1 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free EyeIOP Target ≤17 mm Hg87.1 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free EyeIOP Target ≤16 mm Hg87.1 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free EyeIOP Target ≤15 mm Hg83.9 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free EyeIOP Target ≤14 mm Hg80.6 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free EyeIOP Target ≤13 mm Hg71.0 percentage of participants
Comparison: Percentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free Eye- IOP Target ≤18 mm Hgp-value: 0.56395% CI: [-28.6, 14.2]Fisher Exact
Comparison: Percentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free Eye- IOP Target ≤17 mm Hgp-value: 0.18895% CI: [-33.5, 9.1]Fisher Exact
Comparison: Percentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free Eye- IOP Target ≤16 mmHgp-value: 0.11895% CI: [-36.7, 5.6]Fisher Exact
Comparison: Percentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free Eye- IOP Target ≤15 mm Hgp-value: 0.08595% CI: [-40.2, 2.1]Fisher Exact
Comparison: Percentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free Eye- IOP Target ≤14 mm Hgp-value: 0.05995% CI: [-42, 0.4]Fisher Exact
Comparison: Percentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free Eye- IOP Target ≤13 mm Hgp-value: 0.04595% CI: [-43.9, -1.4]Fisher Exact
Comparison: Percentage of Participants Achieving Specific IOP Targets at Month 12 in Medication-free Eye- IOP Target ≤12 mm Hgp-value: 0.07695% CI: [-41.3, 1.1]Fisher Exact
Secondary

Percentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12

IOP is a measurement of fluid pressure inside the eye. Specific percentage IOP lower targets included ≥25%, ≥30%, ≥35%, ≥40% ≥45%, and ≥50% IOP reduction.

Time frame: Baseline (Preoperative) to Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery.

ArmMeasureGroupValue (NUMBER)
XEN-45 Gel StentPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12≥25% IOP Reduction60.0 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12≥30% IOP Reduction48.4 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12≥35% IOP Reduction41.1 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12≥40% IOP Reduction35.8 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12≥45% IOP Reduction25.3 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12≥50% IOP Reduction22.1 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12≥45% IOP Reduction43.2 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12≥25% IOP Reduction63.6 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12≥40% IOP Reduction54.5 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12≥30% IOP Reduction61.4 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12≥50% IOP Reduction43.2 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12≥35% IOP Reduction61.4 percentage of participants
Comparison: Percentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12: ≥30% IOP Reductionp-value: 0.20195% CI: [-30.3, 5]Fisher Exact
Comparison: Percentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12: ≥35% IOP Reductionp-value: 0.0395% CI: [-37.3, -2.3]Fisher Exact
Comparison: Percentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12: ≥25% IOP Reductionp-value: 0.71295% CI: [-21.3, 14.2]Fisher Exact
Comparison: Percentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12: ≥40% IOP Reductionp-value: 0.04395% CI: [-36, -0.8]Fisher Exact
Comparison: Percentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12: ≥45% IOP Reductionp-value: 0.04895% CI: [-35.1, 0]Fisher Exact
Comparison: Percentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12: ≥50% IOP Reductionp-value: 0.01595% CI: [-38.1, -3.2]Fisher Exact
Secondary

Percentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes

IOP is a measurement of the fluid pressure inside the eye. Specific percentage IOP lower targets included ≥25%, ≥30%, ≥35%, ≥40% ≥45%, and ≥50% IOP reduction. Medication-free eye at Month 12 was defined as no IOP-lowering medication was used to the study eye at Month 12.

Time frame: Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Overall number analyzed are the number of participants with data available for analyses.

ArmMeasureGroupValue (NUMBER)
XEN-45 Gel StentPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes≥25% IOP Reduction67.8 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes≥30% IOP Reduction57.6 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes≥35% IOP Reduction50.8 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes≥40% IOP Reduction44.1 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes≥45% IOP Reduction30.5 percentage of participants
XEN-45 Gel StentPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes≥50% IOP Reduction27.1 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes≥45% IOP Reduction58.1 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes≥25% IOP Reduction77.4 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes≥40% IOP Reduction67.7 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes≥30% IOP Reduction77.4 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes≥50% IOP Reduction58.1 percentage of participants
TrabeculectomyPercentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes≥35% IOP Reduction77.4 percentage of participants
Comparison: Percentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes: ≥ 25% IOP Reductionp-value: 0.46495% CI: [-31, 12.1]Fisher Exact
Comparison: Percentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes: ≥30% IOP Reductionp-value: 0.06995% CI: [-40.6, 2.1]Fisher Exact
Comparison: Percentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes: ≥35% IOP Reductionp-value: 0.02395% CI: [-46.9, -4.7]Fisher Exact
Comparison: Percentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes: ≥40% IOP Reductionp-value: 0.04695% CI: [-43.9, -1.6]Fisher Exact
Comparison: Percentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes: ≥45% IOP Reductionp-value: 0.01495% CI: [-47.6, -5.9]Fisher Exact
Comparison: Percentage of Participants Achieving Specific Percentage IOP Lower Targets From Baseline at Month 12 With Medication-free Eyes: ≥50% IOP Reductionp-value: 0.00695% CI: [-50.8, -9.5]Fisher Exact
Secondary

Percentage of Participants With Antifibrotic Use During Needling

Antifibrotic use included mitomycin-C (MMC) which was standardized for both groups and administered according to physician training and practice.

Time frame: Up to Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery.

ArmMeasureValue (NUMBER)
XEN-45 Gel StentPercentage of Participants With Antifibrotic Use During Needling16.8 percentage of participants
TrabeculectomyPercentage of Participants With Antifibrotic Use During Needling15.9 percentage of participants
Secondary

Percentage of Participants With at Least One Adverse Event (AE), Serious Adverse Events (SAEs), Adverse Device Effects (ADEs) and Serious ADEs (SADEs)

AE=any untoward medical occurrence in a clinical investigation participant administered drug; it does not necessarily have to have a causal relationship with the treatment. An SAE was defined as any untoward medical occurrence that: 1) results in death, 2) is life-threatening, 3) requires inpatient hospitalization or prolongation of existing hospitalization, 4) results in persistent or significant disability/incapacity, 5) leads to a congenital anomaly/birth defect in the offspring of the participant or 6) is a medically important event that satisfies any of the following: a) May require intervention to prevent items 1 through 5 above. b) May expose the participant to danger, even though the event is not immediately life threatening or fatal or does not result in hospitalization. ADEs and SADEs are AEs and SAEs that are caused by the device

Time frame: Median follow-up of 366.0 days

Population: Safety Population included all enrolled participants that have undergone study glaucoma surgery.

ArmMeasureGroupValue (NUMBER)
XEN-45 Gel StentPercentage of Participants With at Least One Adverse Event (AE), Serious Adverse Events (SAEs), Adverse Device Effects (ADEs) and Serious ADEs (SADEs)TEAEs74.7 percentage of participants
XEN-45 Gel StentPercentage of Participants With at Least One Adverse Event (AE), Serious Adverse Events (SAEs), Adverse Device Effects (ADEs) and Serious ADEs (SADEs)TESAEs9.5 percentage of participants
XEN-45 Gel StentPercentage of Participants With at Least One Adverse Event (AE), Serious Adverse Events (SAEs), Adverse Device Effects (ADEs) and Serious ADEs (SADEs)TEADEs0.0 percentage of participants
XEN-45 Gel StentPercentage of Participants With at Least One Adverse Event (AE), Serious Adverse Events (SAEs), Adverse Device Effects (ADEs) and Serious ADEs (SADEs)TESADEs0.0 percentage of participants
TrabeculectomyPercentage of Participants With at Least One Adverse Event (AE), Serious Adverse Events (SAEs), Adverse Device Effects (ADEs) and Serious ADEs (SADEs)TESADEs0.0 percentage of participants
TrabeculectomyPercentage of Participants With at Least One Adverse Event (AE), Serious Adverse Events (SAEs), Adverse Device Effects (ADEs) and Serious ADEs (SADEs)TEAEs93.2 percentage of participants
TrabeculectomyPercentage of Participants With at Least One Adverse Event (AE), Serious Adverse Events (SAEs), Adverse Device Effects (ADEs) and Serious ADEs (SADEs)TEADEs0.0 percentage of participants
TrabeculectomyPercentage of Participants With at Least One Adverse Event (AE), Serious Adverse Events (SAEs), Adverse Device Effects (ADEs) and Serious ADEs (SADEs)TESAEs4.5 percentage of participants
Secondary

Percentage of Participants With BCVA Worst Line Change From Baseline Across Follow-Up

The categories = Worsening (\<-2), No Change (≥-2 and ≥2), Improving (\>2) and Missing were used for determining BCVA worst line change from Baseline. Only categories with at least one participant with event are reported.

Time frame: Baseline up to Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery.

ArmMeasureGroupValue (NUMBER)
XEN-45 Gel StentPercentage of Participants With BCVA Worst Line Change From Baseline Across Follow-UpWorsening36.84 percentage of participants
XEN-45 Gel StentPercentage of Participants With BCVA Worst Line Change From Baseline Across Follow-UpNo Change63.16 percentage of participants
XEN-45 Gel StentPercentage of Participants With BCVA Worst Line Change From Baseline Across Follow-UpMissing0.0 percentage of participants
TrabeculectomyPercentage of Participants With BCVA Worst Line Change From Baseline Across Follow-UpWorsening56.82 percentage of participants
TrabeculectomyPercentage of Participants With BCVA Worst Line Change From Baseline Across Follow-UpNo Change40.91 percentage of participants
TrabeculectomyPercentage of Participants With BCVA Worst Line Change From Baseline Across Follow-UpMissing2.27 percentage of participants
Secondary

Percentage of Participants With Clinical Hypotony

Clinical hypotony was defined as vision reduction (2 lines or more) related to macular changes consistent with hypotony maculopathy (macular folds), optic disc edema, and/or serous choroidal detachments because of low IOP.

Time frame: Month 12

Population: Safety Population included all enrolled participants that have undergone study glaucoma surgery.

ArmMeasureValue (NUMBER)
XEN-45 Gel StentPercentage of Participants With Clinical Hypotony23.2 percentage of participants
TrabeculectomyPercentage of Participants With Clinical Hypotony50.0 percentage of participants
Secondary

Percentage of Participants With Different Absolute Dose for Intraoperative Adjunctive Antifibrotic Therapy

Antifibrotic use included MMC which was standardized for both groups and administered according to physician training and practice. The absolute dose of administration measured in microgram per milliliter (µg/mL) was classified into two categories as: 40, and Other. Other includes all other concentrations apart from 40.

Time frame: Month 12

Population: Safety Population included all enrolled participants that have undergone study glaucoma surgery.

ArmMeasureGroupValue (NUMBER)
XEN-45 Gel StentPercentage of Participants With Different Absolute Dose for Intraoperative Adjunctive Antifibrotic Therapy4097.9 percentage of participants
XEN-45 Gel StentPercentage of Participants With Different Absolute Dose for Intraoperative Adjunctive Antifibrotic TherapyOther1.1 percentage of participants
TrabeculectomyPercentage of Participants With Different Absolute Dose for Intraoperative Adjunctive Antifibrotic TherapyOther0 percentage of participants
TrabeculectomyPercentage of Participants With Different Absolute Dose for Intraoperative Adjunctive Antifibrotic Therapy4093.2 percentage of participants
Secondary

Percentage of Participants With Different Concentrations for Intraoperative Adjunctive Antifibrotic Therapy

Antifibrotic use included MMC which was standardized for both groups and administered according to physician training and practice. The concentration of administration measured in milligram per milliliter (mg/mL) was classified into three categories as: 0.2, 0.4, and Other. Other includes all other concentrations apart from 0.2 and 0.4.

Time frame: Month 12

Population: Safety Population included all enrolled participants that have undergone study glaucoma surgery.

ArmMeasureGroupValue (NUMBER)
XEN-45 Gel StentPercentage of Participants With Different Concentrations for Intraoperative Adjunctive Antifibrotic Therapy0.234.7 percentage of participants
XEN-45 Gel StentPercentage of Participants With Different Concentrations for Intraoperative Adjunctive Antifibrotic Therapy0.464.2 percentage of participants
XEN-45 Gel StentPercentage of Participants With Different Concentrations for Intraoperative Adjunctive Antifibrotic TherapyOther0 percentage of participants
TrabeculectomyPercentage of Participants With Different Concentrations for Intraoperative Adjunctive Antifibrotic Therapy0.236.4 percentage of participants
TrabeculectomyPercentage of Participants With Different Concentrations for Intraoperative Adjunctive Antifibrotic Therapy0.456.8 percentage of participants
TrabeculectomyPercentage of Participants With Different Concentrations for Intraoperative Adjunctive Antifibrotic TherapyOther0 percentage of participants
Secondary

Percentage of Participants With Different Modes of Administration of Intraoperative Adjunctive Antifibrotic Therapy

Antifibrotic use included MMC which was standardized for both groups and administered according to physician training and practice. The mode of administration was classified into two categories as: Injection and Other. Other includes all other modes of administration apart from injection.

Time frame: Month 12

Population: Safety Population included all enrolled participants that have undergone study glaucoma surgery.

ArmMeasureGroupValue (NUMBER)
XEN-45 Gel StentPercentage of Participants With Different Modes of Administration of Intraoperative Adjunctive Antifibrotic TherapyInjection98.9 percentage of participants
XEN-45 Gel StentPercentage of Participants With Different Modes of Administration of Intraoperative Adjunctive Antifibrotic TherapyOther0 percentage of participants
TrabeculectomyPercentage of Participants With Different Modes of Administration of Intraoperative Adjunctive Antifibrotic TherapyInjection84.1 percentage of participants
TrabeculectomyPercentage of Participants With Different Modes of Administration of Intraoperative Adjunctive Antifibrotic TherapyOther13.6 percentage of participants
Secondary

Percentage of Participants With Different Volumes of Intraoperative Adjunctive Antifibrotic Therapy

Antifibrotic use included MMC which was standardized for both groups and administered according to physician training and practice. The volume of administration measured in milliliters (mL) was classified into three categories as: 0.1, 0.2, and Other. Other includes all other volumes apart from 0.1 and 0.2.

Time frame: Month 12

Population: Safety Population included all enrolled participants that have undergone study glaucoma surgery.

ArmMeasureGroupValue (NUMBER)
XEN-45 Gel StentPercentage of Participants With Different Volumes of Intraoperative Adjunctive Antifibrotic Therapy0.150.5 percentage of participants
XEN-45 Gel StentPercentage of Participants With Different Volumes of Intraoperative Adjunctive Antifibrotic Therapy0.247.4 percentage of participants
XEN-45 Gel StentPercentage of Participants With Different Volumes of Intraoperative Adjunctive Antifibrotic TherapyOther1.1 percentage of participants
TrabeculectomyPercentage of Participants With Different Volumes of Intraoperative Adjunctive Antifibrotic Therapy0.134.1 percentage of participants
TrabeculectomyPercentage of Participants With Different Volumes of Intraoperative Adjunctive Antifibrotic Therapy0.256.8 percentage of participants
TrabeculectomyPercentage of Participants With Different Volumes of Intraoperative Adjunctive Antifibrotic TherapyOther2.3 percentage of participants
Secondary

Percentage of Participants With Intraoperative Adjunctive Antifibrotic Therapy Based on Time of Administration

Antifibrotic use included MMC which was standardized for both groups and administered according to physician training and practice. The time of administration was classified into two categories as: Before Procedure and After Procedure.

Time frame: Month 12

Population: Safety Population included all enrolled participants that have undergone study glaucoma surgery.

ArmMeasureGroupValue (NUMBER)
XEN-45 Gel StentPercentage of Participants With Intraoperative Adjunctive Antifibrotic Therapy Based on Time of AdministrationBefore Procedure37.9 percentage of participants
XEN-45 Gel StentPercentage of Participants With Intraoperative Adjunctive Antifibrotic Therapy Based on Time of AdministrationAfter Procedure61.1 percentage of participants
TrabeculectomyPercentage of Participants With Intraoperative Adjunctive Antifibrotic Therapy Based on Time of AdministrationBefore Procedure56.8 percentage of participants
TrabeculectomyPercentage of Participants With Intraoperative Adjunctive Antifibrotic Therapy Based on Time of AdministrationAfter Procedure40.9 percentage of participants
Secondary

Percentage of Participants With Intraoperative Adjunctive Antifibrotic Therapy Use

Antifibrotic use included MMC which was standardized for both groups and administered according to physician training and practice.

Time frame: Month 12

Population: Safety Population included all enrolled participants that have undergone study glaucoma surgery.

ArmMeasureValue (NUMBER)
XEN-45 Gel StentPercentage of Participants With Intraoperative Adjunctive Antifibrotic Therapy Use98.9 percentage of participants
TrabeculectomyPercentage of Participants With Intraoperative Adjunctive Antifibrotic Therapy Use97.7 percentage of participants
Secondary

Percentage of Participants With Needlings Performed

Needling of eye involves breaking down the wall of the scar using a fine needle to improve the drainage of fluid inside the eye.

Time frame: Up to Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery.

ArmMeasureValue (NUMBER)
XEN-45 Gel StentPercentage of Participants With Needlings Performed23.2 percentage of participants
TrabeculectomyPercentage of Participants With Needlings Performed18.2 percentage of participants
Secondary

Percentage of Participants With Postoperative Treatment-Emergent Adverse Events of Special Interest (AESIs)

AE=any untoward medical occurrence in a clinical investigation participant administered drug;it does not necessarily have to have a causal relationship with the treatment. TEAE is an AE either reported for the first time or worsening of a pre-existing event after first dose of study drug and within 30 days of the last administration of study drug. Postoperative AEs included but were not limited to: angle recession, anterior chamber changes, BCVA loss,bleb leak, blebitis, cataract, choroidal effusion, chronic pain, corneal edema, cyclodialysis, Dellen, device malfunction, endophthalmitis, fixed dilated pupil, hyphema, hypotony, implant issues, increase in corneal thickness/IOP, explant, iridodialysis, iritis, loss of eye, etc.Worse eye=eye if both eyes met inclusion criteria. Worse eye was defined using visual field MD at Baseline, with worse eye having the most negative MD. In cases where MD was the same in both eyes to two decimal places, worse eye was defined as eye with higher IOP.

Time frame: Median follow-up of 366.0 days

Population: Safety Population included all enrolled participants that have undergone study glaucoma surgery.

ArmMeasureValue (NUMBER)
XEN-45 Gel StentPercentage of Participants With Postoperative Treatment-Emergent Adverse Events of Special Interest (AESIs)66.3 percentage of participants
TrabeculectomyPercentage of Participants With Postoperative Treatment-Emergent Adverse Events of Special Interest (AESIs)86.4 percentage of participants
Secondary

Percentage of Participants With Specific Intraoperative Adverse Events of Special Interest (AESIs)

An adverse event(AE)is any untoward medical occurrence in a clinical investigation participant administered drug; it does not necessarily have to have a causal relationship with the treatment. Intraoperative AESIs included- Detached Descemet's membrane,iris damage,lens contact,vitreous bulge or loss,anterior chamber bleeding,retrobulbar hemorrhage,conjunctival perforation,conjunctival or scleral flap tearing,shallow anterior chamber with peripheral iridocorneal touch,flat anterior chamber with iridocorneal touch extending to the pupil,device malfunction identified prior to implantation,and choroidal hemorrhage of effusion. Only categories with at least one participant with event in the study eye are reported. The worse eye was selected as the study eye if both eyes met inclusion criteria. The worse eye was defined using visual field MD at Baseline, with the worse eye having the most negative MD. If MD was same in both eyes to two decimal places, the worse eye=eye with higher IOP.

Time frame: Median follow-up of 366.0 days

Population: Safety Population included all enrolled participants that have undergone study glaucoma surgery.

ArmMeasureGroupValue (NUMBER)
XEN-45 Gel StentPercentage of Participants With Specific Intraoperative Adverse Events of Special Interest (AESIs)Anterior Chamber Bleeding1.1 percentage of participants
XEN-45 Gel StentPercentage of Participants With Specific Intraoperative Adverse Events of Special Interest (AESIs)Other1.1 percentage of participants
XEN-45 Gel StentPercentage of Participants With Specific Intraoperative Adverse Events of Special Interest (AESIs)Conjunctival Buttonhole0.0 percentage of participants
XEN-45 Gel StentPercentage of Participants With Specific Intraoperative Adverse Events of Special Interest (AESIs)Iris Damage0.0 percentage of participants
TrabeculectomyPercentage of Participants With Specific Intraoperative Adverse Events of Special Interest (AESIs)Iris Damage2.3 percentage of participants
TrabeculectomyPercentage of Participants With Specific Intraoperative Adverse Events of Special Interest (AESIs)Anterior Chamber Bleeding4.5 percentage of participants
TrabeculectomyPercentage of Participants With Specific Intraoperative Adverse Events of Special Interest (AESIs)Conjunctival Buttonhole2.3 percentage of participants
TrabeculectomyPercentage of Participants With Specific Intraoperative Adverse Events of Special Interest (AESIs)Other2.3 percentage of participants
Secondary

PRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily Routine

Participants answered the question, Since your glaucoma surgery, would you consider that you have resumed your usual activities and daily routine? using the following categories: Not at all, Somewhat, Moderately so, Mostly, Completely.

Time frame: Month 3

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery.

ArmMeasureGroupValue (NUMBER)
XEN-45 Gel StentPRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily RoutineNot at all1.1 percentage of participants
XEN-45 Gel StentPRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily RoutineSomewhat4.2 percentage of participants
XEN-45 Gel StentPRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily RoutineModerately so4.2 percentage of participants
XEN-45 Gel StentPRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily RoutineMostly6.3 percentage of participants
XEN-45 Gel StentPRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily RoutineCompletely41.1 percentage of participants
XEN-45 Gel StentPRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily RoutineMissing43.2 percentage of participants
TrabeculectomyPRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily RoutineCompletely31.8 percentage of participants
TrabeculectomyPRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily RoutineNot at all2.3 percentage of participants
TrabeculectomyPRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily RoutineMostly20.5 percentage of participants
TrabeculectomyPRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily RoutineSomewhat9.1 percentage of participants
TrabeculectomyPRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily RoutineMissing31.8 percentage of participants
TrabeculectomyPRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily RoutineModerately so4.5 percentage of participants
Comparison: PRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily Routine- Not at allp-value: 0.534Fisher Exact
Comparison: PRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily Routine- Somewhatp-value: 0.263Fisher Exact
Comparison: PRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily Routine- Moderately sop-value: 1Fisher Exact
Comparison: PRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily Routine- Mostlyp-value: 0.018Fisher Exact
Comparison: PRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily Routine- Completelyp-value: 0.35Fisher Exact
Comparison: PRO: Percentage of Participants With Post-Surgical Resumption of Activities and Daily Routine- Missingp-value: 0.264Fisher Exact
Secondary

PRO: Percent Change From Baseline in Work Productivity and Activity Impairment (WPAI): Percent Overall Work Impairment Due to Health

WPAI-General Health (GH) is 6-question participant rated questionnaire to determine the amount of absenteeism, presenteeism, work productivity loss and daily activity impairment attributable to general health. It yields 5 sub-scores: hours actually worked, work time missed due to health impairment while working, impairment while working due to health, overall work impairment due to health, activity impairment due to health. These sub-scores are transformed to impairment percentages (range from 0 to 100), with higher numbers indicating greater impairment and less productivity. A negative change from Baseline indicates improvement.

Time frame: Baseline (Preoperative) and Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Overall Number of Participants Analyzed is the number of participants with data available for analysis at the given timepoint.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
XEN-45 Gel StentPRO: Percent Change From Baseline in Work Productivity and Activity Impairment (WPAI): Percent Overall Work Impairment Due to Health-0.994 percent changeStandard Error 12.4333
TrabeculectomyPRO: Percent Change From Baseline in Work Productivity and Activity Impairment (WPAI): Percent Overall Work Impairment Due to Health7.309 percent changeStandard Error 10.3287
Comparison: PRO: Percent Change From Baseline in Work Productivity and Activity Impairment- Percent Overall Work Impairment Due to Healthp-value: 0.6195% CI: [-40.8681, 24.2624]Mixed Model for Repeated Measures
Secondary

PRO: Percent Change From Baseline in WPAI: Percent Activity Impairment Due to Health

WPAI-General Health (GH) is 6-question participant rated questionnaire to determine the amount of absenteeism, presenteeism, work productivity loss and daily activity impairment attributable to general health. It yields 5 sub-scores: hours actually worked, work time missed due to health impairment while working, impairment while working due to health, overall work impairment due to health, activity impairment due to health. These sub-scores are transformed to impairment percentages (range from 0 to 100), with higher numbers indicating greater impairment and less productivity. A negative change from Baseline indicates improvement.

Time frame: Baseline (Preoperative) and Month 12

Population: ITT Population included all enrolled eyes/participants that were randomized to and received study glaucoma surgery (XEN-45 or trabeculectomy). Analyses were based on the randomized surgery. Overall Number of Participants Analyzed is the number of participants with data available for analysis at the given timepoint.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
XEN-45 Gel StentPRO: Percent Change From Baseline in WPAI: Percent Activity Impairment Due to Health-3.1 percent changeStandard Error 5.18
TrabeculectomyPRO: Percent Change From Baseline in WPAI: Percent Activity Impairment Due to Health10.8 percent changeStandard Error 6.53
Comparison: PRO: Percent Change From Baseline in Work Productivity and Activity Impairment-Percent Activity Impairment Due to Healthp-value: 0.09795% CI: [-30.32, 2.52]Mixed Model for Repeated Measures

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026