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CLINICAL TRIAL REPORT

Preservative-Free versus Benzalkonium Chloride–Preserved Latanoprost Ophthalmic Solution in Patients with Primary Open-Angle Glaucoma or Ocular Hypertension: A Phase 3 US Clinical Trial

, , , ORCID Icon, & ORCID Icon
Pages 2575-2588 | Received 29 Mar 2023, Accepted 18 Aug 2023, Published online: 01 Sep 2023

Figures & data

Table 1 Summary of Baseline Patient Characteristics for the T2345 and BPL Treatment Groups (ITT Population)

Figure 1 Patient disposition (a), and study design (b), specifying the timings of screening, washout periods, and assessment schedule timings. *One patient was initially assigned a specific randomization number, but the study medication for this number (BPL) was unusable because it had frozen on the delivery dock. In accordance with the protocol, the patient was assigned the next randomization number, which specified T2345 administration. This patient was analyzed with the T2345 group for the safety population (actual treatment) and with the BPL group for the ITT population. The patient was excluded from the PP population. **Patient had ≥1 discontinuing reason. AE, adverse event; BAK, benzalkonium chloride; BPL, BAK-preserved latanoprost 0.005%; ITT, intent-to-treat; LTFU, lost to follow-up; PP, per protocol; T2345, preservative-free single-dose latanoprost 0.005%.

Figure 1 Patient disposition (a), and study design (b), specifying the timings of screening, washout periods, and assessment schedule timings. *One patient was initially assigned a specific randomization number, but the study medication for this number (BPL) was unusable because it had frozen on the delivery dock. In accordance with the protocol, the patient was assigned the next randomization number, which specified T2345 administration. This patient was analyzed with the T2345 group for the safety population (actual treatment) and with the BPL group for the ITT population. The patient was excluded from the PP population. **Patient had ≥1 discontinuing reason. AE, adverse event; BAK, benzalkonium chloride; BPL, BAK-preserved latanoprost 0.005%; ITT, intent-to-treat; LTFU, lost to follow-up; PP, per protocol; T2345, preservative-free single-dose latanoprost 0.005%.

Figure 2 Mean IOP values in the study eye in the T2345 and BPL-treated groups (a) and difference in IOP (mm Hg) change from baseline levels between each group at each time point (intent-to-treat population; (b), and in the contralateral eye (c and d).

Abbreviations: BAK, benzalkonium chloride; BPL, BAK-preserved latanoprost 0.005%; IOP, intraocular pressure; T2345, preservative-free single-dose latanoprost 0.005%.
Figure 2 Mean IOP values in the study eye in the T2345 and BPL-treated groups (a) and difference in IOP (mm Hg) change from baseline levels between each group at each time point (intent-to-treat population; (b), and in the contralateral eye (c and d).

Table 2 Statistical Analyses of Noninferiority Criteria

Figure 3 Proportion of patients with IOP <18 mm Hg in the study eye (per-protocol population).

Abbreviations: BAK, benzalkonium chloride; BPL, BAK-preserved latanoprost 0.005%; IOP, intraocular pressure; T2345, preservative-free single-dose latanoprost 0.005%.
Figure 3 Proportion of patients with IOP <18 mm Hg in the study eye (per-protocol population).

Table 3 Number (%) of Patients with Most Common Ocular Treatment-Emergent Adverse Events with Relationship to Study Medicine by Preferred Term (Safety Population)

Figure 4 Investigator assessment of comfort of the study medication scores (safety population) split by treatment group and assessment date.

Abbreviations: BPL, BAK-preserved latanoprost 0.005%; T2345, preservative-free single-dose latanoprost 0.005%.
Figure 4 Investigator assessment of comfort of the study medication scores (safety population) split by treatment group and assessment date.