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An Imaging Agent (Pafolacianine) for Identifying Lesions in Pediatric Patients With Primary or Metastatic Solid Tumors

Pafolacianine for Localization of Pediatric Extracranial Solid Tumors

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06915727
Enrollment
20
Registered
2025-04-08
Start date
2025-04-15
Completion date
2027-05-01
Last updated
2026-04-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Childhood Malignant Solid Neoplasm, Childhood Malignant Thoracic Neoplasm, Malignant Abdominal Neoplasm, Malignant Neck Neoplasm, Malignant Pelvic Neoplasm, Metastatic Childhood Malignant Solid Neoplasm

Brief summary

This phase III trial studies how well pafolacianine works for identifying cancerous lesions in children and adolescent patients with primary solid tumors or solid tumors that have spread from where they first started (primary site) to other places in the body (metastatic). Pafolacianine is a fluorescent imaging agent that targets folate receptors which are overexpressed in many cancers and is used with near infrared (NIR) imaging during surgery to identify tumor cells. NIR uses a special camera that uses wavelengths in the infrared range to visualize and locate the tumor cells that are lit up by the pafolacianine. Giving pafolacianine for NIR imaging may work better than other imaging agents in identifying cancerous lesions in pediatric patients with solid tumors.

Interventions

PROCEDUREBiospecimen Collection

Undergo tissue sample collection

Undergo NIR fluorescent imaging

DRUGPafolacianine Sodium

Given IV

PROCEDURESurgical Procedure

Undergo SOC surgery

Sponsors

Mayo Clinic
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
6 Months to 17 Years
Healthy volunteers
No

Inclusion criteria

* Willingness of research participant or legal guardian/representative to give written informed consent * Age 6 months to 17 years * Have a diagnosis, or a high clinical suspicion, of a solid tumor in the neck, chest, abdomen, pelvis, or extremities with a plan for surgical resection including embryonal tumors, sarcomas, neurogenic tumors, carcinomas, mesenchymal tumors, germ cell tumors. Children may undergo surgical resection or biopsy of a solid tumor that is suspected to be malignant without a separate preoperative biopsy; therefore, the tumor type may not be definitively known preoperatively

Exclusion criteria

* Previous exposure to Cytalux™ (pafolacianine) injection * Any medical condition that in the judgement of the investigators could potentially jeopardize the safety of the participant * History of anaphylactic reactions to products containing indocyanine green for near infrared imaging. Participants with a medical history of 'idiopathic anaphylaxis' will require evaluation * History of allergy to any of the components of Cytalux™ (pafolacianine) injection * Presence of any psychological, familial, sociological condition or geographical challenges potentially hampering compliance with the study protocol or follow-up schedule * Received an investigational agent in another investigational drug or vaccine trial within 30 days prior to the administration of the study drug. Investigational trials involving administration of drugs or vaccines which are already Food and Drug Administration (FDA)-approved, such as Children's Oncology Group cooperative trials, are okay * Known sensitivity to fluorescent light * Pregnancy * Unable or unwilling to discontinue folic acid, folate supplements, and multi-vitamins containing folate 48 hours prior to drug administration * Renal failure on dialysis or estimated glomerular filtration rate (eGFR) \< 30 mL/min/1.72m\^2 as measured by the U25 eGFR equation for patients ≥1 year(s) of age. For patients \< 1 year of age, creatinine \> 2x the upper limit of normal will serve as an

Design outcomes

Primary

MeasureTime frameDescription
Accuracy of Cytalux™ (pafolacianine) injection used with NIR fluorescent imaging for detecting lesionsUp to 30 days after surgeryEach excised specimen will be analyzed for histologic findings to determine accuracy of Cytalux™ (pafolacianine) injection used with near infrared (NIR) fluorescent imaging for detecting lesions. Accuracy will be assessed using sensitivity and specificity.

Secondary

MeasureTime frameDescription
Time between Cytalux™ administration and NIR imaging detection intraoperativelyDay 0 to 1Descriptive statistics will be performed and descriptive summaries such as mean (standard deviation) or median (minimum, maximum) for continuous variables and frequencies and percentages for categorical variables will be reported.
Reasons for not excising NIR avid lesionsDay 0 to 1Descriptive statistics will be performed and descriptive summaries such as mean (standard deviation) or median (minimum, maximum) for continuous variables and frequencies and percentages for categorical variables will be reported. All tests will be two sided and p-values less than 0.05 will be considered statistically significant.
Incidence of Adverse Events surgeryFrom study enrollment up to 30 days after surgeryCytalux™ (pafolacianine) will be assessed for safety in children and adolescent patients undergoing by the number and severity of adverse events (AEs), defined as events (serious or non-serious) of scientific and medical concern specific to the investigational product and/or the combination of products being used in a study. AEs will be assessed using National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) Version 5.

Countries

United States

Contacts

CONTACTClinical Trials Referral Office
mayocliniccancerstudies@mayo.edu855-776-0015
CONTACTGina Lewis
DOSCRO2@mayo.edu507-284-0850
PRINCIPAL_INVESTIGATORStephanie F. Polites, MD, MPH

Mayo Clinic

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 2, 2026