Remimazolam for Cataract Surgery

NCT ID: NCT05980117

Last Updated: 2025-03-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE4

Total Enrollment

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-03-10

Study Completion Date

2026-01-31

Brief Summary

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The goal of this study is to assess any post operative cognitive changes following benzodiazepine administration during cataract surgery. The investigators will compare effects of Midazolam vs. Remimazolam on cognition at the time of discharge from the post operative care unit and the next day following surgery.

Cognitive changes will be assessed by administration of Montreal Cognitive Assessment (MoCA).

Participants will:

1. Complete MoCA testing prior to surgery
2. Randomize in either Midazolam or study drug Remimazolam
3. Complete MoCA testing after surgery at the time of discharge in the post anesthesia care unit and the next day of surgery at the time of post operative surgical visit.
4. Complete Patient Satisfaction Survey at the time of discharge from the Post Anesthesia Care Unit (PACU)

Detailed Description

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Cataract surgery (clouded natural lens of eye removed and clear artificial lens implanted) is the most common eye surgery performed in elderly patients. Although cataract surgery is a minor surgery, many patients are anxious and therefore benzodiazepine such as midazolam is administered during surgery to allay a patient's anxiety.

The purpose of this study is to look at any difference in postoperative cognitive changes as well as recovery times in the PACU following administration of midazolam or remimazolam.

Patients will be asked to participate in a clinical trial where they will be randomly assigned to midazolam or remimazolam group. Cognitive changes will be assessed by administration of MoCA test. MoCA test is a validated, objective short (about 10-15 minutes) screening tool for detection of mild neurocognitive dysfunction. Given the short half life of remimazolam, investigators hypothesize that any cognitive changes will be less with remimazolam compared to midazolam.

Patients will be asked to complete MoCA prior to surgery, in the recovery room following surgery, and the next day during their post-operative clinic visit. In addition, patients will be asked to rate their satisfaction of their anesthetic during their surgery.

The participant will be in this research study from the day of surgery until the first post-operative visit, the following day.

Conditions

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Cataract Surgery Cognitive Impairment

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Patients will be randomized to the intervention group receiving Remimazolam or to the control group receiving Midazolam.
Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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Intervention

Patients assigned to the study group will receive Remimazolam.

Group Type EXPERIMENTAL

Remimazolam

Intervention Type DRUG

Remimazolam (1.0mg IV) titrated to modified observer's assessment of sedation score of 3 -4 during cataract surgery.

Control

Patients assigned to the control group will receive Midazolam.

Group Type ACTIVE_COMPARATOR

Midazolam

Intervention Type DRUG

Midazolam (0.5-2mg IV) titrated to modified observer's assessment of sedation score of 3 - 4 during cataract surgery.

Interventions

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Remimazolam

Remimazolam (1.0mg IV) titrated to modified observer's assessment of sedation score of 3 -4 during cataract surgery.

Intervention Type DRUG

Midazolam

Midazolam (0.5-2mg IV) titrated to modified observer's assessment of sedation score of 3 - 4 during cataract surgery.

Intervention Type DRUG

Other Intervention Names

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Byfavo Versed

Eligibility Criteria

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Inclusion Criteria

1. Adult patients age \> 65 years undergoing first eye cataract surgery under local topical anesthesia at the University of California, Los Angeles (UCLA).
2. Both male and female patients
3. American Society of Anesthesiologists Class 2, 3, and 4.

Exclusion Criteria

1. Patients who are unable to consent for the study
2. Patients who are unable to cooperate with the cognitive assessment such as patients with significant visual, auditory, language or other impairment.
3. Patients who are unable to understand simple English commands.
4. Patients who do not wish to have benzodiazepine medication during surgery
5. Patients with a history of severe hypersensitivity reaction to dextran 40 or products containing dextran 40.
6. Patients with chronic pain on opiates.
7. Patients with a history of drug, alcohol abuse/dependence.
8. Patients with BMI \> 40.
9. Patients with obstructive sleep apnea (moderate to severe).
Minimum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of California, Los Angeles

OTHER

Sponsor Role lead

Responsible Party

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Zhuang T. Fang, MD

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Zhuang Fang, MD

Role: PRINCIPAL_INVESTIGATOR

University of California, Los Angeles

Locations

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Ronald Reagan UCLA Medical Center, Department of Anesthesiology & Perioperative Medicine

Los Angeles, California, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Zhuang T Fang, MD

Role: CONTACT

310-267-8946

Stephanie-Dee Sarovich, BS

Role: CONTACT

424-832-6842

Facility Contacts

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Stephanie-Dee Sarovich, B.S.

Role: primary

424-832-6842

References

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Rabinowitz LE, Lamper L, Tendler JM, Schlesinger JM, Vera N. Preventing Adverse Events in Cataract Surgery. Anesth Analg. 2018 Oct;127(4):e66. doi: 10.1213/ANE.0000000000003655. No abstract available.

Reference Type BACKGROUND
PMID: 30059403 (View on PubMed)

Chung F, Lavelle PA, McDonald S, Chung A, McDonald NJ. Cognitive impairment after neuroleptanalgesia in cataract surgery. Anesth Analg. 1989 May;68(5):614-8.

Reference Type BACKGROUND
PMID: 2719292 (View on PubMed)

Evered LA, Silbert BS, Scott DA, Maruff P, Ames D, Choong PF. Preexisting cognitive impairment and mild cognitive impairment in subjects presenting for total hip joint replacement. Anesthesiology. 2011 Jun;114(6):1297-304. doi: 10.1097/ALN.0b013e31821b1aab.

Reference Type BACKGROUND
PMID: 21502855 (View on PubMed)

Nasreddine ZS, Phillips NA, Bedirian V, Charbonneau S, Whitehead V, Collin I, Cummings JL, Chertkow H. The Montreal Cognitive Assessment, MoCA: a brief screening tool for mild cognitive impairment. J Am Geriatr Soc. 2005 Apr;53(4):695-9. doi: 10.1111/j.1532-5415.2005.53221.x.

Reference Type BACKGROUND
PMID: 15817019 (View on PubMed)

Chernik DA, Gillings D, Laine H, Hendler J, Silver JM, Davidson AB, Schwam EM, Siegel JL. Validity and reliability of the Observer's Assessment of Alertness/Sedation Scale: study with intravenous midazolam. J Clin Psychopharmacol. 1990 Aug;10(4):244-51.

Reference Type BACKGROUND
PMID: 2286697 (View on PubMed)

Tan Y, Ouyang W, Tang Y, Fang N, Fang C, Quan C. Effect of remimazolam tosilate on early cognitive function in elderly patients undergoing upper gastrointestinal endoscopy. J Gastroenterol Hepatol. 2022 Mar;37(3):576-583. doi: 10.1111/jgh.15761. Epub 2022 Jan 3.

Reference Type BACKGROUND
PMID: 34907594 (View on PubMed)

Other Identifiers

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22-001570

Identifier Type: -

Identifier Source: org_study_id

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