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COMPANY

ReGenTree

regentreellc.com ↗

Clinical Phase 3

Profile checked Oct 10, 2026

Keywords: Dry Eye Syndrome Dry Eye Neurotrophic Keratopathy Dry Eye Syndromes Diabetes RGN-259 Thymosin beta 4 Thymosin Beta 4 (Tβ4)

7Trials (company is sponsor)

Timeline

  1. Trial start Phase 3: Assessment of the Safety and Efficacy of 0.1% RGN-259 Ophthalmic Solution for the Treatment of NK: SEER-2 source ↗
  2. Trial start Phase 3: Assessment of the Safety and Efficacy of RGN-259 Ophthalmic Solutions for Dry Eye Syndrome: ARISE-3 source ↗
  3. Trial start Phase 3: Assessment of the Safety and Efficacy of RGN-259 Ophthalmic Solutions for Dry Eye Syndrome : ARISE-2 source ↗
  4. Trial start Phase 3: Assessment of the Safety and Efficacy Study of RGN-259 Ophthalmic Solutions for Neurotrophic Keratopathy : SEER-1 source ↗
  5. Trial start Phase 2/Phase 3: Assessment of the Safety and Efficacy of RGN-259 Ophthalmic Solutions for Dry Eye Syndrome: ARISE-1 source ↗
  6. Trial start Phase 2: Safety and Efficacy of Thymosin Beta 4 Ophthalmic Solution in Patients With Dry Eye source ↗
  7. Trial start 2: A Phase 2 Study of the Safety and Efficacy of Thymosin Beta 4 for Treating Corneal Wounds source ↗

Clinical trials (lead sponsor) 7

RecordTitlePhaseStatusStartPrimary completion
NCT03937882Assessment of the Safety and Efficacy of RGN-259 Ophthalmic Solutions for Dry Eye Syndrome: ARISE-3Phase 3CompletedMay 24, 2019Nov 8, 2020 (actual)
NCT05555589Assessment of the Safety and Efficacy of 0.1% RGN-259 Ophthalmic Solution for the Treatment of NK: SEER-2Phase 3RecruitingApr 11, 2023Apr 30, 2026 (estimated)
NCT02600429Assessment of the Safety and Efficacy Study of RGN-259 Ophthalmic Solutions for Neurotrophic Keratopathy : SEER-1Phase 3TerminatedSep 17, 2015Nov 20, 2019 (actual)
NCT02974907Assessment of the Safety and Efficacy of RGN-259 Ophthalmic Solutions for Dry Eye Syndrome : ARISE-2Phase 3Completed2016-112017-09 (actual)
NCT02597803Assessment of the Safety and Efficacy of RGN-259 Ophthalmic Solutions for Dry Eye Syndrome: ARISE-1Phase 2/Phase 3Completed2015-092016-06 (actual)
NCT01387347Safety and Efficacy of Thymosin Beta 4 Ophthalmic Solution in Patients With Dry EyePhase 2Completed2011-082011-10 (actual)
NCT00598871A Phase 2 Study of the Safety and Efficacy of Thymosin Beta 4 for Treating Corneal Wounds2Terminated2007-122009-02 (actual)
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