A comparative study of different concentrations of topical bevacizumab on the recurrence rate of excised primary pterygium: a short-term follow-up study
- 233 Downloads
The present study was undertaken to compare the pterygium recurrence rates after treatment with two different concentrations of topical bevacizumab in those who had undergone a primary pterygium excision. The 90 patients who underwent pterygium excision were enrolled in this prospective, placebo-controlled double-blinded interventional case series. The participants were randomly categorized into 3 groups each consisting of 30 subjects. 24 h after surgery, Group II and Group III received a total of 5 and 10 mg/mL dose of topical bevacizumab, respectively; whereas patients in Group I were administered only a placebo starting a day after surgery. Participants were instructed to instill their topical medicines 4 times a day for 1 week. The patients were examined for pterygium recurrence and complications at postoperative 1, 7, and 14 days as well as each month during the following year. Pterygia recurred in 14 patients (46.7 %) in Group I and in 4 patients (13.3 %) in Group II. No recurrence was observed in Group III during the follow-up period. The Kaplan–Meier survival analysis disclosed a significantly better outcome for those who had been treated with 10 mg/mL concentrations of bevacizumab (Mantel–Cox log rank analysis, P < 0.001). The mean recurrence time was not significantly different between Group I and Group II. No ocular or systemic complication developed till the end of follow-up. Thus, 10 mg/mL concentration of topical bevacizumab was more efficacious than 5 mg/mL dose in preventing pterygium recurrence.
KeywordsPterygium Recurrence Bevacizumab Bare sclera Iran
The authors wish to thank all the participants of this study and nursing staff of Imam Khomeini hospital for their valuable cooperation.
Conflict of interest
The authors declare that they have no conflict of interest.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
- 12.Hurwitz H, Fehrenbacher L, Novotny W, Cartwright T, Hainsworth J, Heim W, Berlin J, Baron A, Griffing S, Holmgren E, Ferrara N, Fyfe G, Rogers B, Ross R, Kabbinavar F (2004) Bevacizumab plus irinotecan, fluorouracil, and leucovorin for metastatic colorectal cancer. N Engl J Med 350(23):2335–2342. doi: 10.1056/NEJMoa032691 PubMedCrossRefGoogle Scholar
- 29.Nava-Castaneda A, Olvera-Morales O, Ramos-Castellon C, Garnica-Hayashi L, Garfias Y (2014) Randomized, controlled trial of conjunctival autografting combined with subconjunctival bevacizumab for primary pterygium treatment: 1 year follow-up. Clin Exp Ophthalmol 42(3):235–241. doi: 10.1111/ceo.12140 CrossRefGoogle Scholar
- 30.Felipe AF, Siong RLB, Uy HS (2009) Subconjunctival injection of bevacizumab for treatment of pterygium. Phillip J Ophthalmol 34(1):44–50Google Scholar
- 31.Khoshniat H, Jahadi Hosseini H, Nejabat M, Fatehi K, Mosallaei M (2009) Local injection of bevacizumab as an alternative method for management of recurrent pterygium. Iran Red Crescent Med J 11(3):306–311Google Scholar