Nitroglycerin for Intra-arterial Chemotherapy in Pediatric Retinoblastoma.

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Nitroglycerin for Intra-arterial Chemotherapy in Pediatric Retinoblastoma.

Study Purpose

The primary objective of the study is to evaluate the effect of intravenously infused nitroglycerin on the incidence of the cardio-respiratory side effects during the intra-arterial chemotherapy for retinoblastoma in pediatric patients. The intra-arterial chemotherapy at the ophthalmic artery is an important treatment option for retinoblastoma. However, the cardio-respiratory side effects (sudden onset of bradycardia, hypotension, a severe decrease in the compliance of lung, hypoxia) occasionally occurs during catheter manipulation in the ophthalmic artery. One of the purported mechanisms of cardio-respiratory side effects is vagal activation from the activation of trigeminal ganglion by afferent signals from the ophthalmic artery. Additionally, the chemotherapy agent can cause intra-arterial retinal precipitates. Therefore, it is expected that the dilation of the retinal artery may reduce the cardio-respiratory side effects and intra-arterial retinal precipitates. The hypothesis of this study is that the intravenously infused nitroglycerin will increase the compliance of the ophthalmic and retinal artery and decrease vagal stimulation and cardio-respiratory side effects during catheter manipulation and chemotherapy agent infusion. This is a single-center, double-blind, randomized, placebo-controlled study comparing the effect of intravenously infused nitroglycerin and saline on the incidence of the cardio-respiratory side effect in pediatric retinoblastoma patients undergoing intra-arterial chemotherapy. Prior to the procedure, each patient will be randomized into either the control-first arm, saline, or study-first arm, nitroglycerin.

Recruitment Criteria

Accepts Healthy Volunteers Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms	No
Study Type An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes. An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes. Searching Both is inclusive of interventional and observational studies.	Interventional
Eligible Ages	N/A - 7 Years
Gender	All

More Inclusion & Exclusion Criteria

Inclusion Criteria:

- Retinoblastoma patients who need intra-arterial chemotherapy under general anesthesia.

- Residual intra-arterial chemotherapy ≥ 2 times (cross-over design)
Exclusion Criteria:
- Respiratory disease causing a decrease in lung compliance.

- Unstable vital sign, significant arrhythmia or hypotension, Shock.

- Hypersensitivity or contraindication to nitroglycerin.

- Increased intracranial pressure, Intracranial hemorrhage.

- Recent use of PDE5 inhibitors (<24 hours after sildenafil or vardenafil; <48 hours after tadalafil)

Trial Details

Trial ID: This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.	NCT04564521
Phase Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans. Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data. Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs. Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.	N/A
Lead Sponsor The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.	Seoul National University Hospital
Principal Investigator The person who is responsible for the scientific and technical direction of the entire clinical study.	N/A
Principal Investigator Affiliation	N/A
Agency Class Category of organization(s) involved as sponsor (and collaborator) supporting the trial.	Other
Overall Status	Recruiting
Countries	Korea, Republic of
Conditions The disease, disorder, syndrome, illness, or injury that is being studied.	Retinoblastoma

Arms & Interventions

Arms

Experimental: Nitroglycerin

Intravenous nitroglycerin (0.5mcg/kg/min) is infused after the induction of general anesthesia and during intra-arterial chemotherapy.

Active Comparator: Normal saline

Normal saline is infused after the induction of general anesthesia and during intra-arterial chemotherapy.

Interventions

Drug: - Nitroglycerin

Intravenous nitroglycerin (0.5mcg/kg/min) is infused after the induction of general anesthesia and during intra-arterial chemotherapy to reduce the cardio-respiratory side effects.

Drug: - Normal saline

Intravenous normal saline is infused after the induction of general anesthesia and during intra-arterial chemotherapy as an active comparator.

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.