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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05033106
Other study ID # D-9-2020
Secondary ID
Status Recruiting
Phase Phase 3
First received
Last updated
Start date September 1, 2020
Est. completion date September 1, 2022

Study information

Verified date August 2021
Source Zagazig University
Contact Ghada Mahmoud Tawfik Eladawy, Msc
Phone 00201006780358
Email dr_ghadaeladawy@yahoo.com
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Retinopathy of prematurity (ROP) with inadequate growth and development of retinal blood vessels in premature infants is one of the foremost reasons for childhood blindness. Recently there is a shift of treatment to VEGF inhibitors which can regress ROP without destroying the peripheral retina. Yet, the best drug has not been identified.Bevacizumab is a larger, full-length immunoglobulin G (IgG) molecule with slower retinal clearance and therefore prolonged diffusion into the systemic circulation, up to 3 weeks. In contrast, the systemic half-life of a Fab molecule, such as ranibizumab, is a few hours. The objective is to compare the efficacy and reliability of intravitreal bevacizumab with standard 0.625 mg dose and intravitreal ranibizumab treatments for type 1 ROP, namely pattern of disease regression, recurrence of ROP, necessity of subsequent ablative procedures.


Description:

Objectives To compare the efficacy and reliability of intravitreal bevacizumab with standard 0.625 mg dose and intravitreal ranibizumab treatments for type 1 ROP, namely pattern of disease regression, recurrence of ROP, necessity of subsequent ablative procedures. Study population & Sample size Infants with Type 1 ROP (affecting both eyes) screened at neonatal intensive care unit (NICU) of Cairo University. The sample size is calculated to be 36 eyes of 18 infants using open Epi confidence total 95%, power of the study 80% according to the following : the mean SD of axial length of patients with stage 3 ROP using bevacizumab versus ranibizumab (20.3 1.16 versus 19.4 ). Study Design This is a prospective, comparative, interventional non inferiority study. Methods - Infants with type 1 ROP affecting both eyes will be included. - Before intravitreal injection, the parents or legal guardian of the infants will be informed about the procedure. - After written consent is obtained, the pupil will be dilated with 2.5% phenylephrine and 0.5% tropicamide injection. - The injections will be performed in the operating theatre under general (light inhalational anesthesia) or topical anesthesia with Benoxinate hydrochloride 0.4%. - Povidone iodine10% swab will be applied on the eyelids and eyelashes. A sterile eyelid speculum will be inserted. Each eye will be meticulously bathed with 5% povidone iodine solution for 3 min before intravitreal injection. - A dose of 0.25 mg/0.025 mL ranibizumab (Lucentis) is injected in the right eye of the infant and 0.625 mg/0.025 mL bevacizumab is injected into the vitreous cavity of the left eye 1 mm posterior to the superior/inferior temporal limbus via 30 G needle. The two injections are done sequentially on two consecutive days starting with the eye of more advanced disease. - Fundus examination will be conducted with an indirect ophthalmoscope and a 28-D lens. The central retinal artery and the lens will be evaluated in addition to whether a retinal tear is present. - Postoperative moxifloxacin 0.4% drops will be prescribed 4 times daily for one week. - Patients will be seen 24 hours after first injection, to monitor for any signs of infection. - Infants will then be seen weekly for 4 weeks and dilated fundus examination and and digital coloured fundus images by RetCam will be performed to document response of the disease. - Success criteria to the IVB injection will be defined as, during the follow up period of 60 weeks' postmenstrual age: - recovery of the plus disease - regression of any stage of ROP - progression of peripheral retinal vascularization - If any progression occurs in the disease course, in terms of: increase in plus disease or progression to higher stage of ROP, immediate second IVB dose 0.625mg will be given to either groups. - Follow-up will be continued for a minimum of one year corrected age or until we ensure complete peripheral retinal vascularization.


Recruitment information / eligibility

Status Recruiting
Enrollment 36
Est. completion date September 1, 2022
Est. primary completion date September 1, 2022
Accepts healthy volunteers No
Gender All
Age group N/A and older
Eligibility Inclusion Criteria: - Infants with a birth weight of = 1500 g or geststional age of = 30 weeks and selected infants with birth weight between 1500 and 2000 g or gestational age of more than 30 weeks with an unstable clinical course, including those requiring cardiorespiratory support. Patients with bilateral disease who will receive bilateral injections, are only included. Type 1 ROP according to ETROP study which is defined as, Zone I ROP with plus disease, Zone I, stage 3 ROP without plus disease and Zone II, stage 2 or 3 ROP with plus disease. Exclusion Criteria: Eyes with previous intravitreal injections. Eyes with previous laser therapy. Eyes with any other pathology, other than ROP. Eyes with ROP stage 4 or 5. Eyes with mucopurulent or purulent conjunctivitis. Infants who will not be able to comply to the follow-up schedule.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Bevacizumab, Ranibizumab
• A dose of 0.25 mg/0.025 mL ranibizumab (Lucentis) is injected in the right eye of the infant and 0.625 mg/0.025 mL bevacizumab is injected into the vitreous cavity of the left eye 1 mm posterior to the superior/inferior temporal limbus via 30 G needle. The two injections are done sequentially on two consecutive days starting with the eye of more advanced disease.

Locations

Country Name City State
Egypt Zagazig University Zagazig

Sponsors (2)

Lead Sponsor Collaborator
Zagazig University Cairo University

Country where clinical trial is conducted

Egypt, 

Outcome

Type Measure Description Time frame Safety issue
Other • The number and kind of adverse events, the number of patients progressing to stage 4 or 5. stage 4, retinal detachment and stage 5,cicatricial ROP 60 weeks PMA
Other • The number of reinjections or laser spots and the number of eyes that need lensectomy and vitrectomy. reinjection with anti-VEGF, or indirect laser 60 weeks PMA
Other • Refractive errors in spherical equivalent in patients who only received anti-VEGF treatment, pattern of fixation and ocular alignment. Retinoscopy is done to detect errors of refraction 60 weeks PMA
Primary • Regression achieved either by single injection or multiple injections or additional laser therapy at 60 weeks postmenstrual age. regression of plus disease and the active neovessels 60 weeks PMA
Secondary • Recurrence of ROP (recurrent plus disease, recurrent neovascularization, or reformation of ridge despite treatment) 60 weeks PMA
See also
  Status Clinical Trial Phase
Completed NCT03148132 - VEGF Concentrations After Intravitreal Bevacizumab vs Ranibizumab as a Treatment for Type 1 ROP Phase 4