Ocular Conservative Treatment for Retinoblastoma : Efficacy of the New Management Strategies and Visual Outcome (RETINO 2018)

Institut Curie

Status and phase

Enrolling

Phase 3

Phase 2

Conditions

Retinoblastoma

Treatments

Drug: etoposide, carboplatin and vincristine or local ophthalmological treatment without IV chemotherapy

Drug: Intravitreal Melphalan chemotherapy injections (local treatment)

Device: Thermotherapy (local treatment)

Device: Iodine-125 plaques (local treatment)

Drug: Melphalan or Melphalan + Topotecan

Drug: Carboplatin administered on Day 1

Device: Cryotherapy (local treatment)

Study type

Interventional

Funder types

Other

Identifiers

NCT04681417

IC 2019-05

Details and patient eligibility

About

This protocol includes 2 independent studies. Both studies are multicenter studies, evaluating different therapeutic approaches in two different populations of patients:

Study 1, a randomized phase-II study evaluating the efficacy of Intra-Arterial Chemotherapy (IAC) with melphalan and topotecan versus melphalan alone, both in association with ophthalmologic treatments.
Study 2, a minimally invasive interventional study evaluating the results on visual function following reference treatment with intravenous (IV) chemotherapy in association with ophthalmologic or local ophthalmological treatment without IV chemotherapy.

Full description

Primary objective of the studies:

Study 1: To evaluate the efficacy of IAC in term of local control of the disease in patients eligible for IAC (randomized phase II study);
Study 2: To assess the visual function, based on World Health Organization (WHO) criteria, in patients eligible for other conservative treatments (IV chemotherapy in association with local ophthalmologic trématent or local ophthalmological treatment without IV chemotherapy; this is a minimally invasive interventional study).

Enrollment

225 estimated patients

Sex

All

Ages

6 months to 6 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Overall study inclusion criteria:

Newly diagnosed retinoblastoma (RB).
Retinoblastoma with at least one eye eligible for conservative management.
Patients likely to be compliant with the study requirements and visits, including late follow-up.
Patients not previously treated with chemotherapy or radiotherapy for this or any other cancer.
Patients with no contraindication to the proposed treatments.
Informed consent signed by parents or legal representative.
French Social Security System coverage.

Study 1 inclusion criteria:

8.1. Children aged from 6 months to 6 years. 9. Retinoblastoma in at least one eye, deemed manageable with IAC in one side and without IV chemotherapy:

Unilateral Retinoblastoma classified as group B, C (if vitreous seeds < 3 mm), D or E with no invasion of the anterior segment, and without massive tumor of more than 2/3 of the eye, eligible for conservative management, or
Bilateral Retinoblastoma but with very unbalanced lesions between the two eyes: one eye group D or E without invasion of the anterior segment or massive tumor of more than 2/3 of the eye, eligible for IAC, and the other eye eligible for local treatment only (without IAC).

Study 2 inclusion criteria:

8.2. Retinoblastoma eligible for conservative management although not manageable with IAC:

Unilateral Retinoblastoma in children below 6 months of age, classified as Group A, B, C or D, with or without vitreous seeding, compatible with conservative management, or
Bilateral Retinoblastoma classified as group A, B, C D, or E without invasion of the anterior segment, and/or massive tumors of more than 2/3 of the eye and eligible for conservative management.

Exclusion criteria

Overall study non-inclusion criteria:

RB not eligible for conservative management :
1. Extra-ocular extension of the disease, or
2. Group E eyes with invasion of the anterior segment, and/or massive tumors of more than 2/3 of the eye.
Patient older than 6 years of age.
Patients with another associated disease contra indicating systemic chemotherapy.
Previously treated retinoblastoma by chemotherapy.
Patients already treated for another malignant disease.
Patient with any psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule.
Patients whose parents have not accepted the treatment regimen after explanation of it.
Contraindication to study drug mentioned in SmPC (Summary of Products Characteristics) of the study drugs.
Inclusion in another experimental anti-cancer drug therapy.

Study 1 non-inclusion criteria:
Any contraindication or concomitant disease that would preclude the Study 1 treatment procedure and could delay treatment.

These patients should be eligible for Study 2.

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

225 participants in 2 patient groups

Study 1: Melphalan or Melphalan + Topotecan

Experimental group

Description:

Randomized phase-II study evaluating the efficacy of Intra-Arterial Chemotherapy (IAC) with melphalan and topotecan versus melphalan alone, both in association with ophthalmologic treatments.

Treatment:

Device: Cryotherapy (local treatment)

Device: Iodine-125 plaques (local treatment)

Drug: Melphalan or Melphalan + Topotecan

Drug: Intravitreal Melphalan chemotherapy injections (local treatment)

Device: Thermotherapy (local treatment)

Study 2: Etoposide, carboplatin and vincristine

Other group

Description:

Neoadjuvant chemotherapy involves 2 to 6 cycles of combined etoposide, carboplatin and vincristine in association with ophthalmologic treatments.

Treatment:

Device: Cryotherapy (local treatment)