GlaucomaNCT02846090
Dexmedetomidine as an Additive to Local Anaesthesia to Decrease Intraocular Pressure in Glaucoma Surgery
A study testing Dexmedetomidine to reduce the IOP in people with Glaucoma, run by Cairo University at 1 site in Egypt.
Trial summary
Nowadays, a number of cases with increased intraocular pressure and glaucoma have been shown a huge increase . This is because of the increase the geriatric population in the community and advanced medical care. Read more about this study
- Who is it for?
- Ages 25 to 80 years
- Conditions the study is for
- Glaucoma
- What is being tested?
- Dexmedetomidine to reduce the IOP
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 105 participants
- Where
- 1 siteEgypt
- Study dates
- Aug 2016to Jan 2017
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 25 to 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Any patients who were ASA I-III, age more than 25 and less than 80 with diagnosed increased intraocular pressure and were legible for surgical correction
Who cannot join
- Patients with known allergy to the medications to be given, ASA more than III, age less than 25 or more than 80, dementia, deafness, psychological disease, difficult to communicate, cannot lay flat, INR more than 1.7 or with significant coagulopathy
Trial locations and contacts
1 site in 1 country.
About this study
Nowadays, a number of cases with increased intraocular pressure and glaucoma have been shown a huge increase . This is because of the increase the geriatric population in the community and advanced medical care. Surgical correction, as a treatment, solves this problem greatly especially with the modern surgical techniques .
Peribulbar block reduced the admission discharge time and reduced the burden on both the patients and the medical team. On the other hand, it carries the risk of increased intraocular pressure (IOP). Which, subsequently, limit its usage in glaucoma surgery.
Dexmedetomidine, as an alpha 2 agonist, has a well-established role in decreasing intraocular pressure (IOP). This effect has been shown at a histological level and clinical level
Read the detailed description
Nowadays, number of cases with increased intraocular pressure and glaucoma has been shown a huge increase . This is because of the increase the geriatric population in the community and advanced medical care. Surgical correction, as a treatment, solves this problem greatly especially with the modern surgical techniques .
Peribulbar block reduced the admission discharge time and reduced the burden on both the patients and the medical team. On the other hand, it carries the risk of increased intraocular pressure (IOP). Which, subsequently, limit its usage in glaucoma surgery .
Dexmedetomidine, as an alpha 2 agonist, has a well established role in decreasing intraocular pressure (IOP). This effect has been shown at a histological level and clinical level . It has been tested in many studies before as an additive to local anaesthetic to augment the effect of the block and to achieve an accepted level of patient sedation (**). Many routes have been tested such as intravenous infusion, intramuscular injection and topically with the local anaesthesia . There is a debate about the best route and the optimum dose that can achieve the desired clinical effect with the least side effects.
There is no study, till now, has examined the effect of Dexmedetomidine in a diseased eye with pathology that leads to increased IOP. This study states the hypothesis that Dexmedetomidine locally as an additive to local anaesthesia in different doses, not only will increase the duration of the block or achieve some level of sedation, but also can reduce the IOP in this diseased eye to a level that will help the surgical conditions and improve the surgical outcome.
- Conditions
- Glaucoma
- Being tested
- Dexmedetomidine to reduce the IOP
- Medical subject headings
- Glaucoma
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Dexmedetomidine to reduce the IOPDrug
Also called reduction of OCULAR HYPERTENSION
Dexmedetomidine 50 micrograms group (D50) in which peribulbar block was given using 10 ml of a mixture of local anesthetics. The mixture was composed of 5 ml of 0.5% bupivacaine +4.5 ml of 2% lidocaine +0.5ml of 50 micrograms of Dexmedetomidine with 150 IU hyaluronidase.
| Study group | Role | What they receive |
|---|---|---|
| D50 Dexmedetomidine 50 micrograms group | Experimental | peribulbar block was given using 10 ml of a mixture of local anesthetics. The mixture was composed of 5 ml of 0.5% bupivacaine +4.5 ml of 2% lidocaine +0.5ml of 50 micrograms of Dexmedetomidine with 150 IU hyaluronidase. Receives: Drug: Dexmedetomidine to reduce the IOP |
| D25 Dexmedetomidine 25 micrograms group | Experimental | peribulbar block was given using 10 ml of a mixture of local anesthetics. The mixture was composed of 5 ml of 0.5% bupivacaine + 4.5 ml of 2% lidocaine +0.5ml of 25 micrograms of Dexmedetomidine with 150 IU hyaluronidase. Receives: Drug: Dexmedetomidine to reduce the IOP |
| control | Placebo comparator | peribulbar block was given using 10 ml of a mixture of local anesthetics without Dexmedetomidine. The mixture was composed of 5 ml of 0.5% bupivacaine +4.5 ml of 2% lidocaine +0.5ml with 150 IU hyaluronidase. Receives: Drug: Dexmedetomidine to reduce the IOP |
What is being measured
The primary outcome is the main question the study is designed to answer.
IOP before the block, after the message and before the surgical incision, after the end of the surgery
IOP before the block, after the message and before the surgical incision, after the end of the surgery
Measured: one hour
Secondary outcomes (1)
Onset of the block
the time elapsed between the end of the block and the complete anaesthesia and complete or partial akainesia
Measured: 2 min
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Jul 2016 (estimated)
- Study startAug 2016
- Primary completionNov 2016 (estimated)
- Study completionJan 2017 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for GlaucomaStudies of the same condition, open and under way.
- More trials run by Cairo UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 105 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Cairo University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Hassan Mohamed Ali, Cairo University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02846090
- Sponsor's protocol ID
- 01001733687
- Status last verified
- Jul 2016
- First submitted
- 20 Jul 2016
- Last updated
- 27 Jul 2016
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 27 Jul 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Dexmedetomidine as an Additive to Local Anaesthesia to Decrease Intraocular Pressure in Glaucoma Surgery
- ClinicalTrials.gov ID
- NCT02846090
- Acronym / sponsor ID
- 01001733687
- Conditions
- Glaucoma
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 105 participants (estimated)
- Lead sponsor
- Cairo UniversityUniversity, hospital or other
- Study start
- Aug 2016
- Primary completion
- Nov 2016 (estimated)
- Study completion
- Jan 2017 (estimated)
- First posted
- 27 Jul 2016 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Nowadays, a number of cases with increased intraocular pressure and glaucoma have been shown a huge increase . This is because of the increase the geriatric population in the community and advanced medical care. Surgical correction, as a treatment, solves this problem greatly especially with the modern surgical techniques .
Peribulbar block reduced the admission discharge time and reduced the burden on both the patients and the medical team. On the other hand, it carries the risk of increased intraocular pressure (IOP). Which, subsequently, limit its usage in glaucoma surgery.
Dexmedetomidine, as an alpha 2 agonist, has a well-established role in decreasing intraocular pressure (IOP). This effect has been shown at a histological level and clinical level
Detailed description
Nowadays, number of cases with increased intraocular pressure and glaucoma has been shown a huge increase . This is because of the increase the geriatric population in the community and advanced medical care. Surgical correction, as a treatment, solves this problem greatly especially with the modern surgical techniques .
Peribulbar block reduced the admission discharge time and reduced the burden on both the patients and the medical team. On the other hand, it carries the risk of increased intraocular pressure (IOP). Which, subsequently, limit its usage in glaucoma surgery .
Dexmedetomidine, as an alpha 2 agonist, has a well established role in decreasing intraocular pressure (IOP). This effect has been shown at a histological level and clinical level . It has been tested in many studies before as an additive to local anaesthetic to augment the effect of the block and to achieve an accepted level of patient sedation (**). Many routes have been tested such as intravenous infusion, intramuscular injection and topically with the local anaesthesia . There is a debate about the best route and the optimum dose that can achieve the desired clinical effect with the least side effects.
There is no study, till now, has examined the effect of Dexmedetomidine in a diseased eye with pathology that leads to increased IOP. This study states the hypothesis that Dexmedetomidine locally as an additive to local anaesthesia in different doses, not only will increase the duration of the block or achieve some level of sedation, but also can reduce the IOP in this diseased eye to a level that will help the surgical conditions and improve the surgical outcome.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| D50 Dexmedetomidine 50 micrograms group | Experimental | Drug: Dexmedetomidine to reduce the IOPperibulbar block was given using 10 ml of a mixture of local anesthetics. The mixture was composed of 5 ml of 0.5% bupivacaine +4.5 ml of 2% lidocaine +0.5ml of 50 micrograms of Dexmedetomidine with 150 IU hyaluronidase. |
| D25 Dexmedetomidine 25 micrograms group | Experimental | Drug: Dexmedetomidine to reduce the IOPperibulbar block was given using 10 ml of a mixture of local anesthetics. The mixture was composed of 5 ml of 0.5% bupivacaine + 4.5 ml of 2% lidocaine +0.5ml of 25 micrograms of Dexmedetomidine with 150 IU hyaluronidase. |
| control | Placebo comparator | Drug: Dexmedetomidine to reduce the IOPperibulbar block was given using 10 ml of a mixture of local anesthetics without Dexmedetomidine. The mixture was composed of 5 ml of 0.5% bupivacaine +4.5 ml of 2% lidocaine +0.5ml with 150 IU hyaluronidase. |
Who may qualify
- Ages
- 25 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Any patients who were ASA I-III, age more than 25 and less than 80 with diagnosed increased intraocular pressure and were legible for surgical correction
Key exclusion criteria (1 listed)
- Patients with known allergy to the medications to be given, ASA more than III, age less than 25 or more than 80, dementia, deafness, psychological disease, difficult to communicate, cannot lay flat, INR more than 1.7 or with significant coagulopathy
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Dexmedetomidine to reduce the IOPAlso: reduction of OCULAR HYPERTENSIONDexmedetomidine 50 micrograms group (D50) in which peribulbar block was given using 10 ml of a mixture of local anesthetics. The mixture was composed of 5 ml of 0.5% bupivacaine +4.5 ml of 2% lidocaine +0.5ml of 50 micrograms of Dexmedetomidine with 150 IU hyaluronidase. | Drug | D25 Dexmedetomidine 25 micrograms group, D50 Dexmedetomidine 50 micrograms group, control |
Primary outcome
IOP before the block, after the message and before the surgical incision, after the end of the surgery
Time frame: one hour
IOP before the block, after the message and before the surgical incision, after the end of the surgery
1 secondary outcome
Onset of the block
Time frame: 2 min
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Jul 2016.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Dexmedetomidine to reduce the IOP in people with Glaucoma, run by Cairo University at 1 site in Egypt.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 27 Jul 2016. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Hassan Ali, lecturer (1001733687, hassan364@hotmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
IOP before the block, after the message and before the surgical incision, after the end of the surgery (time frame: one hour). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Jul 2016.