GlaucomaPhase 3NCT00472810
Ologen (OculusGen)-Glaucoma MMC Control in Pakistan
A Phase 3 study testing ologen collagen matrix in glaucoma filtering surgery and MMC in glaucoma filtering surgery in people with Glaucoma and Trabeculectomy, run by Pro Top & Mediking Company Limited at 1 site in Pakistan.
Trial summary
The purpose of this study is to compare the safety and effectiveness of the ologen (OculusGen) Biodegradable Collagen Matrix Implant and the MMC group in filtration surgery. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Glaucoma, Trabeculectomy
- What is being tested?
- ologen collagen matrix in glaucoma filtering surgery and MMC in glaucoma filtering surgery
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 40 participants
- Where
- 1 sitePakistan
- Study dates
- Mar 2007to May 2008
- Phase
- Phase 3
- 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 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Age 18 years or over.
- Uncontrolled glaucoma, with failed medical and laser treatment, requiring trabeculectomy.
- Subject able and willing to cooperate with investigation plan.
- Subject able and willing to complete postoperative follow-up requirements.
- Subject willing to sign informed consent form.
Who cannot join
- Known allergic reaction to mitomycin-C or Bovine collagen.
- Subject is on warfarin and discontinuation is not recommended.
- Normal tension glaucoma.
- Participation in an investigational study during the 30 days preceding trabeculectomy.
- Ocular infection within 14 days prior to trabeculectomy.
- Pregnant or breast-feeding women.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Comparative Study of the Safety and Effectiveness Between Ologen (OculusGen) Collagen Matrix Implant and Mitomycin-C in Glaucoma Filtering Surgery
The purpose of this study is to compare the safety and effectiveness of the ologen (OculusGen) Biodegradable Collagen Matrix Implant and the MMC group in filtration surgery.
Read the detailed description
- Study Objective: To compare the safety and effectiveness of the ologen (OculusGen) Biodegradable Collagen Matrix Implant and the MMC group in filtration surgery. The primary endpoint is to prove the effectiveness via the reduction of IOP, and the secondary endpoint is to prove the safety via the incidence of complications and adverse events.
- Study Design: The study is designed as an open-label, randomized, parallel, comparative study. Patients who meet the inclusion/exclusion criteria and sign informed consent will be included. After enrollment, patients will be randomized into two groups: trabeculectomy with OculusGen implant or trabeculectomy with mitomycin-C.
- Follow-Up: There will be 7 post-operative and follow-up visits within 6 months of surgery: postoperative days 1, 7, 14, 30, 60, 90 and 180. A window of ± 7 days is allowed for the 30, 60, 90 day visits and ± 14 days for the 180 day visits. Further follow-up of subjects after the trial will be the responsibility of the investigator.
- Conditions
- Glaucoma, Trabeculectomy
- Being tested
- ologen collagen matrix in glaucoma filtering surgery, MMC in glaucoma filtering surgery
- Keywords
- Glaucoma, Collagen matrix, ologen, OculusGen, Antifibrotic, Trabeculectomy, anti scarring, tissue engineering, high risk patient for trabeculectomy, Aeon Astron
- Medical subject headings
- Glaucoma
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ologen collagen matrix in glaucoma filtering surgeryDevice
If ologen™ treatment is used, the collagen matrix will be placed on top of the scleral flap under the conjunctiva after the trabeculectomy.
MMC in glaucoma filtering surgeryDrug
Also called Mitomycin C
If mitomycin -C is applied, a single cellulose sponge soaked with MMC (0.2mg/ml - 0.4mg/ml) is fashioned into an approximate 2.0 × 4.0 mm rectangular shape and applied to the scleral bed and subconjunctival space taking care to avoid exposure to the conjunctival wound edge. Application time is 2 minutes for MMC. Then, the area treated is copiously irrigated with balanced salt solution. After operation, appropriate anti-inflammatory and antibiotic eye-drops will be prescribed.
| Study group | Role | What they receive |
|---|---|---|
| 1 | Experimental | 20 patients will be recruited according to the enrollment acceptance criteria.Randomisation is performed using a sealed envelope system, where 40 shuffled envelopes designating the surgery to either trabeculectomy with mitomycin-C (MMC) and trabeculectomy with ologen™ Collagen matrix must be open before surgery. Then, patients are allocated and trabeculectomy is performed.If ologen™ treatment is used, the collagen matrix will be placed on top of the scleral flap under the conjunctiva after the trabeculectomy. Receives: Device: ologen collagen matrix in glaucoma filtering surgery |
| 2 | Active comparator | Following ethics committee approval, 20 patients with uncontrolled glaucoma will be randomised to trabeculectomy with mitomycin -C. Randomisation is performed. Then, trabeculectomy is performed Receives: Drug: MMC in glaucoma filtering surgery |
What is being measured
The primary outcome is the main question the study is designed to answer.
the effectiveness via the reduction of IOP
Measured: 180 day
Secondary outcomes (1)
the safety via the incidence of complications and adverse events.
Measured: 180 day
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 May 2007 (estimated)
- Study startMar 2007
- Primary completionMay 2008
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for GlaucomaStudies of the same condition, open and under way.
- 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 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 40 participants (actual)
Sponsor and investigators
- Lead sponsor
- Pro Top & Mediking Company Limited
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Syed Imtiaz Ali, Professor, Principal investigator, RMC & Allied Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00472810
- Sponsor's protocol ID
- Mediking 0703
- Other IDs
- OculusGen-2006-02-20
- Status last verified
- Oct 2011
- First submitted
- 11 May 2007
- Last updated
- 7 Oct 2011
- Results posted
- No
- Data monitoring committee
- No
Publications
Chen HS, Ritch R, Krupin T, Hsu WC. Control of filtering bleb structure through tissue bioengineering: An animal model. Invest Ophthalmol Vis Sci. 2006 Dec;47(12):5310-4. doi: 10.1167/iovs.06-0378.
PubMed 17122118Hsu WC, Spilker MH, Yannas IV, Rubin PA. Inhibition of conjunctival scarring and contraction by a porous collagen-glycosaminoglycan implant. Invest Ophthalmol Vis Sci. 2000 Aug;41(9):2404-11.
PubMed 10937547Park J, Rittiphairoj T, Wang X, E JY, Bicket AK. Device-modified trabeculectomy for glaucoma. Cochrane Database Syst Rev. 2023 Mar 13;3(3):CD010472. doi: 10.1002/14651858.CD010472.pub3.
PubMed 36912740
Study at a glance
From the registry record, last updated by the sponsor on 7 Oct 2011. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparative Study of the Safety and Effectiveness Between Ologen (OculusGen) Collagen Matrix Implant and Mitomycin-C in Glaucoma Filtering Surgery
- ClinicalTrials.gov ID
- NCT00472810
- Acronym / sponsor ID
- Mediking 0703
- Conditions
- Glaucoma, Trabeculectomy
- Keywords
- Glaucoma, Collagen matrix, ologen, OculusGen, Antifibrotic, Trabeculectomy, anti scarring, tissue engineering
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 40 participants (actual)
- Lead sponsor
- Pro Top & Mediking Company LimitedIndustry (pharma, biotech, devices)
- Study start
- Mar 2007
- Primary completion
- May 2008 (actual)
- First posted
- 14 May 2007 (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.
The purpose of this study is to compare the safety and effectiveness of the ologen (OculusGen) Biodegradable Collagen Matrix Implant and the MMC group in filtration surgery.
Detailed description
- Study Objective: To compare the safety and effectiveness of the ologen (OculusGen) Biodegradable Collagen Matrix Implant and the MMC group in filtration surgery. The primary endpoint is to prove the effectiveness via the reduction of IOP, and the secondary endpoint is to prove the safety via the incidence of complications and adverse events.
- Study Design: The study is designed as an open-label, randomized, parallel, comparative study. Patients who meet the inclusion/exclusion criteria and sign informed consent will be included. After enrollment, patients will be randomized into two groups: trabeculectomy with OculusGen implant or trabeculectomy with mitomycin-C.
- Follow-Up: There will be 7 post-operative and follow-up visits within 6 months of surgery: postoperative days 1, 7, 14, 30, 60, 90 and 180. A window of ± 7 days is allowed for the 30, 60, 90 day visits and ± 14 days for the 180 day visits. Further follow-up of subjects after the trial will be the responsibility of the investigator.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| 1 | Experimental | Device: ologen collagen matrix in glaucoma filtering surgery20 patients will be recruited according to the enrollment acceptance criteria.Randomisation is performed using a sealed envelope system, where 40 shuffled envelopes designating the surgery to either trabeculectomy with mitomycin-C (MMC) and trabeculectomy with ologen™ Collagen matrix must be open before surgery. Then, patients are allocated and trabeculectomy is performed.If ologen™ treatment is used, the collagen matrix will be placed on top of the scleral flap under the conjunctiva after the trabeculectomy. |
| 2 | Active comparator | Drug: MMC in glaucoma filtering surgeryFollowing ethics committee approval, 20 patients with uncontrolled glaucoma will be randomised to trabeculectomy with mitomycin -C. Randomisation is performed. Then, trabeculectomy is performed |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Age 18 years or over.
- Uncontrolled glaucoma, with failed medical and laser treatment, requiring trabeculectomy.
- Subject able and willing to cooperate with investigation plan.
- Subject able and willing to complete postoperative follow-up requirements.
- Subject willing to sign informed consent form.
Key exclusion criteria (6 listed)
- Known allergic reaction to mitomycin-C or Bovine collagen.
- Subject is on warfarin and discontinuation is not recommended.
- Normal tension glaucoma.
- Participation in an investigational study during the 30 days preceding trabeculectomy.
- Ocular infection within 14 days prior to trabeculectomy.
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 |
|---|---|---|
| ologen collagen matrix in glaucoma filtering surgeryIf ologen™ treatment is used, the collagen matrix will be placed on top of the scleral flap under the conjunctiva after the trabeculectomy. | Device | 1 |
| MMC in glaucoma filtering surgeryAlso: Mitomycin CIf mitomycin -C is applied, a single cellulose sponge soaked with MMC (0.2mg/ml - 0.4mg/ml) is fashioned into an approximate 2.0 × 4.0 mm rectangular shape and applied to the scleral bed and subconjunctival space taking care to avoid exposure to the conjunctival wound edge. Application time is 2 minutes for MMC. Then, the area treated is copiously irrigated with balanced salt solution. After operation, appropriate anti-inflammatory and antibiotic eye-drops will be prescribed. | Drug | 2 |
Primary outcome
the effectiveness via the reduction of IOP
Time frame: 180 day
1 secondary outcome
the safety via the incidence of complications and adverse events.
Time frame: 180 day
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 7 Oct 2011.
- Results publication: PubMed 17122118Chen HS, Ritch R, Krupin T, Hsu WC. Control of filtering bleb structure through tissue bioengineering: An animal model. Invest Ophthalmol Vis Sci. 2006 Dec;47(12):5310-4. doi: 10.1167/iovs.06-0378.
- Results publication: PubMed 10937547Hsu WC, Spilker MH, Yannas IV, Rubin PA. Inhibition of conjunctival scarring and contraction by a porous collagen-glycosaminoglycan implant. Invest Ophthalmol Vis Sci. 2000 Aug;41(9):2404-11.
- Derived from this study: PubMed 36912740Park J, Rittiphairoj T, Wang X, E JY, Bicket AK. Device-modified trabeculectomy for glaucoma. Cochrane Database Syst Rev. 2023 Mar 13;3(3):CD010472. doi: 10.1002/14651858.CD010472.pub3.
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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.
Syed Imtiaz Ali, Professor principal investigator
RMC & Allied Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing ologen collagen matrix in glaucoma filtering surgery and MMC in glaucoma filtering surgery in people with Glaucoma and Trabeculectomy, run by Pro Top & Mediking Company Limited at 1 site in Pakistan.
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 5 inclusion and 6 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: finished, as of the sponsor's last update on 7 Oct 2011. 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 Pakistan. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
the effectiveness via the reduction of IOP (time frame: 180 day). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00472810, which also lists 3 linked publications.
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 7 Oct 2011; AzTrials last refreshed its copy on 3 Nov 2026.