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MELT-300

Phase 3

Cataract | Small molecule | Ophthalmology |Harrow, Inc.|Last Updated: Aug 2, 2024

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials2
Total Enrollment866
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06383273A Study to Evaluate Efficacy and Safety of MELT-300 for Procedural Sedation in Subjects Undergoing Cataract Extraction With Lens Replacement (CELR)PHASE3 RECRUITING 528May 1, 2024Jan 1, 2025Aug 2, 202412 United States
NCT05133518A Study of MELT-300 (Midazolam and Ketamine Sublingual Tablets) for Sedation and Intraoperative Ocular Analgesia in Participants Undergoing Cataract Extraction With Lens Replacement (CELR)PHASE2 COMPLETED 338Jul 20, 2021Nov 3, 2022Dec 19, 20223 United States
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Study Endpoints
Primary Endpoints
Percentage of Participants Achieving Successful Procedural Sedation
Preoperative (Day 1), Intraoperative (Day 1), and Postoperative (Day 1)

Successful procedural sedation is defined as achieving target sedation level (Ramsay Sedation Scale \[RSS\] level 2 or 3) by the start of surgery without need for rescue sedation medication, no requirement for intraoperative sedation medication, and able to complete the surgery (i.e. procedural sedation responder). The Ramsay Sedation Scale (RSS) was the first scale to be defined for the sedated participants and was designed as a test of arousability. The Ramsay Scale provides three levels of 'awake' states (score 1-3) and three levels of 'asleep' states (score 4-6). A score of 2 (participant is cooperative, orientated, and tranquil) best fits an optimum sedation level based on the criteria of calm, comfortable, communicative, and cooperative participants.

Percentage of Participants with Success for Procedural Sedation by Using Ramsay Sedation Scale
Day 1

The Ramsay Sedation Scale (RSS) was the first scale to be defined for the sedated participants and was designed as a test of arousability. The Ramsay Scale provides three levels of 'awake' states (score 1-3) and three levels of 'asleep' states (score 4-6). A score of 2 (participant is cooperative, orientated, and tranquil) best fits an optimum sedation level based on the criteria of calm, comfortable, communicative, and cooperative participants. Ramsay Sedation Scale 1. =Participant is anxious and agitated or restless, or both 2. =Participant is cooperative, oriented, and tranquil 3. =Participant responds to commands only 4. =Participant exhibits brisk response to a light glabellar tap or loud auditory stimulus 5. =Participant exhibits a sluggish response to a light glabellar tap or loud auditory stimulus 6. =Participants exhibits no response RSS score will be assessed pre-operatively, intra-operatively, and post-operatively on Day 1

Mean Intraoperative Analgesia as Measured by the Numeric Pain Rating Scale
Intraoperatively on Day 1

The Numeric Pain Rating Scale (NPRS) is a segmented numeric version of the visual analog scale (VAS) in which a respondent selects a whole number (0-10 integers) that best reflects the intensity of his/her pain. The 11-point numeric scale ranges from '0' representing one pain extreme (e.g. "no pain") to '10' representing the other pain extreme (e.g. "pain as bad as you can imagine" or "worst pain imaginable")

Secondary Endpoints
Percentage of Participants Requiring Rescue Sedation Medication
Preoperative (Day 1) and Intraoperative (Day 1)
Percentage of Participants Achieving Preoperative Procedural Sedation Without Need For Rescue Sedation Medication
Preoperative (Day 1)
Percentage of Participants Requiring Rescue Sedation Medication Preoperatively
Preoperative (Day 1)
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
MELT-300 sublingual tabletEXPERIMENTALParticipants will receive a single dose of MELT-300 sublingual, tablet containing 3 mg of midazolam and 50 mg of ketamine.
Midalozam sublingual tabletACTIVE_COMPARATORParticipants will receive a single dose of midazolam 3 mg sublingual tablet.
Placebo sublingual tabletPLACEBO_COMPARATORParticipants will receive a single dose of a matching placebo sublingual tablet.
MELT-300ACTIVE_COMPARATORParticipants will receive a single dose of MELT-300 sublingual, rapidly dissolving tablet containing 3 mg of midazolam and 50 mg of ketamine.
Midazolam aloneACTIVE_COMPARATORParticipants will receive a single dose of midazolam 3 mg sublingual tablet.
Ketamine aloneACTIVE_COMPARATORParticipants will receive a single dose of ketamine 50 mg sublingual tablet.
PlaceboPLACEBO_COMPARATORParticipants will receive a single dose of a matching placebo sublingual tablet.
Interventions
NameTypeDescription
MELT-300 sublingual tabletDRUGEach dose of MELT-300 will be provided as a single sublingual tablet, containing 3 mg midazolam and 50 mg ketamine. Participants will receive 1 sublingual tablet of study medication 30 (± 5) minutes prior to planned surgery start, without food or water.
Midalozam sublingual tabletDRUGEach dose of midazolam will be provided as a single sublingual tablet, containing 3 mg midazolam. Participants will receive 1 sublingual tablet of study medication 30 (± 5) minutes prior to planned surgery start, without food or water.
Placebo sublingual tabletDRUGEach dose of placebo will be provided as a matching sublingual tablet, containing placebo. Participants will receive 1 sublingual tablet of study medication 30 (± 5) minutes prior to planned surgery start, without food or water.
MELT-300DRUGSublingual tablet
Midazolam aloneDRUGSublingual tablet
Ketamine aloneDRUGSublingual tablet
PlaceboDRUGSublingual tablet
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Eligibility Criteria
Age Range18 Years — 65 Years
SexALL
Healthy VolunteersNo
Study Sites12

Inclusion Criteria: Participants must meet all of the following in order to be enrolled into the study: 1. Males and females ≥ 18 years of age 2. Are to undergo unilateral primary CELR under topical anesthesia, with a phacoemulsification device and insertion of an intraocular lens (no restrictions...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT06383273primaryCompletionDate: changed
LOWMay 24, 2026NCT06383273studyFirstPostDate: changed