Topotecan Episcleral Plaque for Treatment of Retinoblastoma (STEP-RB)
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ClinicalTrials.gov Identifier: NCT04428879 |
Recruitment Status :
Recruiting
First Posted : June 11, 2020
Last Update Posted : May 20, 2021
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Sponsor:
The Hospital for Sick Children
Information provided by (Responsible Party):
Brenda Gallie, The Hospital for Sick Children
Tracking Information | |||||||||
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First Submitted Date ICMJE | June 4, 2020 | ||||||||
First Posted Date ICMJE | June 11, 2020 | ||||||||
Last Update Posted Date | May 20, 2021 | ||||||||
Actual Study Start Date ICMJE | June 16, 2020 | ||||||||
Estimated Primary Completion Date | October 15, 2025 (Final data collection date for primary outcome measure) | ||||||||
Current Primary Outcome Measures ICMJE |
Maximum Tolerated Dose and Recommended Phase 2 Dose of topotecan hydrochloride administered as a Chemoplaque to pediatric patients with active Retinoblastoma. [ Time Frame: 9 weeks ] Inter-Patient Escalation in the rolling six phase 1 trial design will determine Maximum Tolerated Dose and Recommended Phase 2 Dose. Dose level assignment is based on the number of participants currently enrolled in the cohort, the number of dose limiting toxicities observed, and the number of participants at risk for developing a dose limiting toxicity (i.e., participants enrolled but who are not yet assessable for toxicity).
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Original Primary Outcome Measures ICMJE | Same as current | ||||||||
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Current Secondary Outcome Measures ICMJE |
Tumor response to the Chemoplaque as secondary therapy in eye(s) with active retinoblastoma after completion of primary standard of care treatment. [ Time Frame: 9 weeks ] Tumor response will be characterized as (i) complete regression, (ii) very good (iii) partial regression, (iv) partial regression, (v) stable disease or (vi) progressive disease determined by evaluating number of tumour sites, appearance and tumour size.
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Original Secondary Outcome Measures ICMJE | Same as current | ||||||||
Current Other Pre-specified Outcome Measures | Not Provided | ||||||||
Original Other Pre-specified Outcome Measures | Not Provided | ||||||||
Descriptive Information | |||||||||
Brief Title ICMJE | Topotecan Episcleral Plaque for Treatment of Retinoblastoma | ||||||||
Official Title ICMJE | Phase I Sustained-Release Topotecan Episcleral Plaque (Chemoplaque) for Retinoblastoma | ||||||||
Brief Summary | This single site, single-arm, non-randomized, dose escalation phase I toxicity clinical trial will assess primarily the safety and secondarily the efficacy of episcleral topotecan in patients with active residual or recurrent intraocular retinoblastoma in at least one eye following completion of first-line therapy. | ||||||||
Detailed Description | Retinoblastoma is the most common pediatric malignant intraocular tumour and originates from the retina. Treatment of eyes with advanced intraocular retinoblastoma remains a challenge. The historic standard of care for patients with unilateral disease is enucleation and for those with bilateral disease, a variety of modalities have been tried. These include radiation therapy, systemic chemotherapy, periocular administration of chemotherapy, selective intra-arterial chemotherapy, and intravitreal chemotherapy. Unfortunately, all of these modalities are associated with significant morbidity and investigators are looking for new ways to treat these patients either with novel directed drug delivery methods or with new less toxic agents. This study will evaluate the safety and efficacy of topotecan delivered directly to the eye using a novel sustained-release topotecan episcleral plaque (also referred to as a Chemoplaque) in patients with active residual or recurrent intraocular retinoblastoma in at least one eye following completion of first-line therapy. The study intervention involves the insertion and removal of the Chemoplaque, examinations under anaesthesia (EUAs), visits to clinic to monitor for adverse events throughout, and post plaque removal toxicity evaluation. EUAs, clinic visits and laboratory tests are standard of care for retinoblastoma patients. | ||||||||
Study Type ICMJE | Interventional | ||||||||
Study Phase ICMJE | Phase 1 | ||||||||
Study Design ICMJE | Allocation: N/A Intervention Model: Single Group Assignment Masking: None (Open Label) Primary Purpose: Treatment |
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Condition ICMJE | Retinoblastoma | ||||||||
Intervention ICMJE | Drug: Topotecan Episcleral Plaque
Sustained Release Episcleral Topotecan Plaques (Chemoplaques) are glued to bare, dry sclera of the eye under conjunctiva and Tenon's capsule. A rolling six dose interpatient escalation schema will be employed. Chemoplaques with 0.6 mg and 0.9 mg of topotecan HCl formulation are available. Patients will receive 1 or 2 Chemoplaques per eye, to deliver 5 escalating doses: 0.6, 0.9, 1.2 [2x0.6], 1.5 [0.6+0.9] or 1.8 [2x0.9] mg. The prescribed dose will escalate or de-escalate by 0.3 mg at each level, and no patient will receive more than 1.8 mg of topotecan hydrochloride due to the physical limitations if the devices available. The planned removal is 42 days ± 7, unless dose limiting toxicity is observed, in which case the plaque is removed as soon as possible. The observation period for the purposes of dose-escalation will be 63 days (i.e. 21 days following Chemoplaque removal on day 42).
Other Names:
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Study Arms ICMJE | Experimental: Phase I single arm trial
Intervention: Drug: Topotecan Episcleral Plaque
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Publications * | Not Provided | ||||||||
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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Recruitment Information | |||||||||
Recruitment Status ICMJE | Recruiting | ||||||||
Estimated Enrollment ICMJE |
30 | ||||||||
Original Estimated Enrollment ICMJE | Same as current | ||||||||
Estimated Study Completion Date ICMJE | October 15, 2030 | ||||||||
Estimated Primary Completion Date | October 15, 2025 (Final data collection date for primary outcome measure) | ||||||||
Eligibility Criteria ICMJE | Inclusion Criteria:
Exclusion Criteria:
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Sex/Gender ICMJE |
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Ages ICMJE | up to 17 Years (Child) | ||||||||
Accepts Healthy Volunteers ICMJE | No | ||||||||
Contacts ICMJE |
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Listed Location Countries ICMJE | Canada | ||||||||
Removed Location Countries | |||||||||
Administrative Information | |||||||||
NCT Number ICMJE | NCT04428879 | ||||||||
Other Study ID Numbers ICMJE | 1000064742 | ||||||||
Has Data Monitoring Committee | Yes | ||||||||
U.S. FDA-regulated Product |
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IPD Sharing Statement ICMJE |
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Current Responsible Party | Brenda Gallie, The Hospital for Sick Children | ||||||||
Original Responsible Party | Same as current | ||||||||
Current Study Sponsor ICMJE | The Hospital for Sick Children | ||||||||
Original Study Sponsor ICMJE | Same as current | ||||||||
Collaborators ICMJE | Not Provided | ||||||||
Investigators ICMJE |
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PRS Account | The Hospital for Sick Children | ||||||||
Verification Date | May 2021 | ||||||||
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |