PterygiumPhase 4NCT01736449
Role of Sub-Conjunctival Bevacizumab in Post Pterygium Excision Management
A Phase 4 study testing Bevacizumab in people with Pterygium, run by Arrowhead Regional Medical Center at 1 site in United States.
Trial summary
A pterygium is a fibrovascular growth originating from the conjunctiva that grows onto the surface of the cornea. Frequently, these pterygia will recur even after surgical resection. Bevacizumab is an inhibitor of angiogenesis, which is needed for recurrent growth. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Pterygium
- What is being tested?
- Bevacizumab
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 31 participants
- Where
- 1 siteUnited States
- Study dates
- Apr 2011to Apr 2012
- Phase
- Phase 4
- 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
- Adult, Older adult
Who may be able to join
- any patient 18 years of age or older with a primary pterygium that extends at least 2 mm past the limbus
Who cannot join
- history of glaucoma
- previous ocular surgery
- steroid-response glaucoma
- previous myocardial infarct
- bleeding disorder
- pregnancy
- lack of patient cooperation
Trial locations and contacts
1 site in 1 country.
United States1 site
Arrowhead Regional Medical Center
Colton, California, 92624
About this study
A pterygium is a fibrovascular growth originating from the conjunctiva that grows onto the surface of the cornea. Frequently, these pterygia will recur even after surgical resection. Bevacizumab is an inhibitor of angiogenesis, which is needed for recurrent growth. The use of bevacizumab is poorly understood in inhibiting pterygium growth. The objective of this study is to compare the effects of wound healing and recurrence rates in postoperative bevacizumab versus pterygium excision alone.
Read the detailed description
This is a prospective trial. Thirty-one patients with a primary pterygium of at least 2 mm in size and without any previous ocular surgery will be included. Outcome measures will include best corrected visual acuity, intraocular pressure, recurrence, and any sight threatening complications at two weeks, two months, and six months postoperatively.
- Conditions
- Pterygium
- Being tested
- Bevacizumab
- Keywords
- pterygium, bevacizumab, recurrence of pterygium
- Medical subject headings
- Pterygium
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
BevacizumabDrug
| Study group | Role | What they receive |
|---|---|---|
| Pterygium Excision Alone | Placebo comparator | Not described |
| Pterygium Excision with Bevacizumab Injection | Experimental | Not described Receives: Drug: Bevacizumab |
What is being measured
The primary outcome is the main question the study is designed to answer.
number of recurrent pterygia with postoperative bevacizumab
The number of recurrent pterygia with patients who received bevacizumab after pterygium excision was compared to the number of recurrences in those patients who only had pterygium excision.
Measured: 6 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Nov 2012 (estimated)
- Study startApr 2011
- Primary completionApr 2012
- Study completionApr 2012
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (21)Papers the sponsor has linked to this study.
- Other trials for PterygiumStudies 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 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 31 participants (actual)
Sponsor and investigators
- Lead sponsor
- Arrowhead Regional Medical Center
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Sonia Dhoot, Arrowhead Regional Medical Center
- Investigators
- Keith Tokuhara, MD, Principal investigator, Arrowhead Regional Medical Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01736449
- Sponsor's protocol ID
- IRB1108
- Status last verified
- Nov 2012
- First submitted
- 21 Nov 2012
- Last updated
- 29 Nov 2012
- Results posted
- No
- Data monitoring committee
- No
Publications
Detorakis ET, Spandidos DA. Pathogenetic mechanisms and treatment options for ophthalmic pterygium: trends and perspectives (Review). Int J Mol Med. 2009 Apr;23(4):439-47. doi: 10.3892/ijmm_00000149.
PubMed 19288018Detorakis ET, Zaravinos A, Spandidos DA. Growth factor expression in ophthalmic pterygia and normal conjunctiva. Int J Mol Med. 2010 Apr;25(4):513-6. doi: 10.3892/ijmm_00000371.
PubMed 20198298Avisar R, Arnon A, Avisar E, Weinberger D. Primary pterygium recurrence time. Isr Med Assoc J. 2001 Nov;3(11):836-7.
PubMed 11729580Hirst LW. The treatment of pterygium. Surv Ophthalmol. 2003 Mar-Apr;48(2):145-80. doi: 10.1016/s0039-6257(02)00463-0.
PubMed 12686302Ang LP, Chua JL, Tan DT. Current concepts and techniques in pterygium treatment. Curr Opin Ophthalmol. 2007 Jul;18(4):308-13. doi: 10.1097/ICU.0b013e3281a7ecbb.
PubMed 17568207Enkvetchakul O, Thanathanee O, Rangsin R, Lekhanont K, Suwan-Apichon O. A randomized controlled trial of intralesional bevacizumab injection on primary pterygium: preliminary results. Cornea. 2011 Nov;30(11):1213-8. doi: 10.1097/ICO.0b013e31821c9b44.
PubMed 21915047Fallah Tafti MR, Khosravifard K, Mohammadpour M, Hashemian MN, Kiarudi MY. Efficacy of intralesional bevacizumab injection in decreasing pterygium size. Cornea. 2011 Feb;30(2):127-9. doi: 10.1097/ICO.0b013e3181e16d67.
PubMed 20885313Banifatemi M, Razeghinejad MR, Hosseini H, Gholampour A. Bevacizumab and ocular wound healing after primary pterygium excision. J Ocul Pharmacol Ther. 2011 Feb;27(1):17-21. doi: 10.1089/jop.2010.0094. Epub 2010 Oct 26.
PubMed 20977367Razeghinejad MR, Hosseini H, Ahmadi F, Rahat F, Eghbal H. Preliminary results of subconjunctival bevacizumab in primary pterygium excision. Ophthalmic Res. 2010;43(3):134-8. doi: 10.1159/000252980. Epub 2009 Oct 29.
PubMed 19887878Lekhanont K, Patarakittam T, Thongphiew P, Suwan-apichon O, Hanutsaha P. Randomized controlled trial of subconjunctival bevacizumab injection in impending recurrent pterygium: a pilot study. Cornea. 2012 Feb;31(2):155-61. doi: 10.1097/ICO.0b013e3182151e0e.
PubMed 22081150Fallah MR, Khosravi K, Hashemian MN, Beheshtnezhad AH, Rajabi MT, Gohari M. Efficacy of topical bevacizumab for inhibiting growth of impending recurrent pterygium. Curr Eye Res. 2010 Jan;35(1):17-22. doi: 10.3109/02713680903395273.
PubMed 20021250Shenasi A, Mousavi F, Shoa-Ahari S, Rahimi-Ardabili B, Fouladi RF. Subconjunctival bevacizumab immediately after excision of primary pterygium: the first clinical trial. Cornea. 2011 Nov;30(11):1219-22. doi: 10.1097/ICO.0b013e31820ca63f.
PubMed 21955635Cortez RT, Ramirez G, Collet L, Thakuria P, Giuliari GP. Intravitreous bevacizumab injection: an experimental study in New Zealand white rabbits. Arch Ophthalmol. 2010 Jul;128(7):884-7. doi: 10.1001/archophthalmol.2010.139.
PubMed 20625050Michels S. Is intravitreal bevacizumab (Avastin) safe? Br J Ophthalmol. 2006 Nov;90(11):1333-4. doi: 10.1136/bjo.2006.102293.
PubMed 17057166Ghazi NG, Kirk TQ, Knape RM, Tiedeman JS, Conway BP. Is monthly retreatment with intravitreal bevacizumab (Avastin) necessary in neovascular age-related macular degeneration? Clin Ophthalmol. 2010 Apr 26;4:307-14. doi: 10.2147/opth.s8598.
PubMed 20463798
Study at a glance
From the registry record, last updated by the sponsor on 29 Nov 2012. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Role of Sub-Conjunctival Bevacizumab in Post Pterygium Excision Management
- ClinicalTrials.gov ID
- NCT01736449
- Acronym / sponsor ID
- IRB1108
- Conditions
- Pterygium
- Keywords
- pterygium, bevacizumab, recurrence of pterygium
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 31 participants (actual)
- Lead sponsor
- Arrowhead Regional Medical CenterUniversity, hospital or other
- Study start
- Apr 2011
- Primary completion
- Apr 2012 (actual)
- Study completion
- Apr 2012 (actual)
- First posted
- 29 Nov 2012 (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.
A pterygium is a fibrovascular growth originating from the conjunctiva that grows onto the surface of the cornea. Frequently, these pterygia will recur even after surgical resection. Bevacizumab is an inhibitor of angiogenesis, which is needed for recurrent growth. The use of bevacizumab is poorly understood in inhibiting pterygium growth. The objective of this study is to compare the effects of wound healing and recurrence rates in postoperative bevacizumab versus pterygium excision alone.
Detailed description
This is a prospective trial. Thirty-one patients with a primary pterygium of at least 2 mm in size and without any previous ocular surgery will be included. Outcome measures will include best corrected visual acuity, intraocular pressure, recurrence, and any sight threatening complications at two weeks, two months, and six months postoperatively.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Pterygium Excision Alone | Placebo comparator | – |
| Pterygium Excision with Bevacizumab Injection | Experimental | Drug: Bevacizumab |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- any patient 18 years of age or older with a primary pterygium that extends at least 2 mm past the limbus
Key exclusion criteria (7 listed)
- history of glaucoma
- previous ocular surgery
- steroid-response glaucoma
- previous myocardial infarct
- bleeding disorder
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 |
|---|---|---|
| Bevacizumab | Drug | Pterygium Excision with Bevacizumab Injection |
Primary outcome
number of recurrent pterygia with postoperative bevacizumab
Time frame: 6 months
The number of recurrent pterygia with patients who received bevacizumab after pterygium excision was compared to the number of recurrences in those patients who only had pterygium excision.
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 29 Nov 2012.
- Background: PubMed 19288018Detorakis ET, Spandidos DA. Pathogenetic mechanisms and treatment options for ophthalmic pterygium: trends and perspectives (Review). Int J Mol Med. 2009 Apr;23(4):439-47. doi: 10.3892/ijmm_00000149.
- Background: PubMed 20198298Detorakis ET, Zaravinos A, Spandidos DA. Growth factor expression in ophthalmic pterygia and normal conjunctiva. Int J Mol Med. 2010 Apr;25(4):513-6. doi: 10.3892/ijmm_00000371.
- Background: PubMed 11729580Avisar R, Arnon A, Avisar E, Weinberger D. Primary pterygium recurrence time. Isr Med Assoc J. 2001 Nov;3(11):836-7.
- Background: PubMed 12686302Hirst LW. The treatment of pterygium. Surv Ophthalmol. 2003 Mar-Apr;48(2):145-80. doi: 10.1016/s0039-6257(02)00463-0.
- Background: PubMed 17568207Ang LP, Chua JL, Tan DT. Current concepts and techniques in pterygium treatment. Curr Opin Ophthalmol. 2007 Jul;18(4):308-13. doi: 10.1097/ICU.0b013e3281a7ecbb.
- Background: PubMed 21915047Enkvetchakul O, Thanathanee O, Rangsin R, Lekhanont K, Suwan-Apichon O. A randomized controlled trial of intralesional bevacizumab injection on primary pterygium: preliminary results. Cornea. 2011 Nov;30(11):1213-8. doi: 10.1097/ICO.0b013e31821c9b44.
- Background: PubMed 20885313Fallah Tafti MR, Khosravifard K, Mohammadpour M, Hashemian MN, Kiarudi MY. Efficacy of intralesional bevacizumab injection in decreasing pterygium size. Cornea. 2011 Feb;30(2):127-9. doi: 10.1097/ICO.0b013e3181e16d67.
- Background: PubMed 20977367Banifatemi M, Razeghinejad MR, Hosseini H, Gholampour A. Bevacizumab and ocular wound healing after primary pterygium excision. J Ocul Pharmacol Ther. 2011 Feb;27(1):17-21. doi: 10.1089/jop.2010.0094. Epub 2010 Oct 26.
- Background: PubMed 19887878Razeghinejad MR, Hosseini H, Ahmadi F, Rahat F, Eghbal H. Preliminary results of subconjunctival bevacizumab in primary pterygium excision. Ophthalmic Res. 2010;43(3):134-8. doi: 10.1159/000252980. Epub 2009 Oct 29.
- Background: PubMed 22081150Lekhanont K, Patarakittam T, Thongphiew P, Suwan-apichon O, Hanutsaha P. Randomized controlled trial of subconjunctival bevacizumab injection in impending recurrent pterygium: a pilot study. Cornea. 2012 Feb;31(2):155-61. doi: 10.1097/ICO.0b013e3182151e0e.
- Background: PubMed 20021250Fallah MR, Khosravi K, Hashemian MN, Beheshtnezhad AH, Rajabi MT, Gohari M. Efficacy of topical bevacizumab for inhibiting growth of impending recurrent pterygium. Curr Eye Res. 2010 Jan;35(1):17-22. doi: 10.3109/02713680903395273.
- Background: PubMed 21955635Shenasi A, Mousavi F, Shoa-Ahari S, Rahimi-Ardabili B, Fouladi RF. Subconjunctival bevacizumab immediately after excision of primary pterygium: the first clinical trial. Cornea. 2011 Nov;30(11):1219-22. doi: 10.1097/ICO.0b013e31820ca63f.
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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.
Keith Tokuhara, MD principal investigator
Arrowhead Regional Medical Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Bevacizumab in people with Pterygium, run by Arrowhead Regional Medical Center at 1 site in United States.
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 7 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 29 Nov 2012. 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 United States. 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.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
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?
number of recurrent pterygia with postoperative bevacizumab (time frame: 6 months). 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 NCT01736449, which also lists 21 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 29 Nov 2012.