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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT03721783
Other study ID # 18BB37
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date June 24, 2021
Est. completion date July 1, 2026

Study information

Verified date July 2023
Source Great Ormond Street Hospital for Children NHS Foundation Trust
Contact Alex Barnacle, BM
Phone +447810792517
Email Alex.Barnacle@gosh.nhs.uk
Is FDA regulated No
Health authority
Study type Observational [Patient Registry]

Clinical Trial Summary

A registry to audit the current range of applications, technical success rate, safety profile, complication rate and efficacy of cryoablation procedures being performed in children.


Description:

Cryoablation involves image-guided insertion of single-use specialised needles or probes through the skin into a soft tissue or bone lesion. A mechanised unit is connected to the probe(s) and generates cyclical freezing and thawing of the tissues at the probe tip(s) via exchange of highly pressurised gases through the probe lumen(s), utilising the Joules-Thomson effect. Extreme freezing and thawing of the lesion causes permanent tissue destruction through both mechanical disruption of tissue membranes and a secondary immune response effect. Cryoablation is one of several minimally invasive ablative techniques used to reduce the size of or to eradicate soft tissue and bone lesions. Ablative techniques are now an accepted standard of care for many benign and malignant lesions in adult practice. Cryoablation is widely used in the management of renal cell carcinoma, with medium-term outcomes matching surgical resection. The advantages of cryoablation over surgery, particularly in a paediatric population, are: - Minimally invasive approach, therefore suitable for day case procedures and almost scarless - Significantly faster recovery times compared to complex surgical debulking - Minimal complication rates compared to surgery (less risk to nerves, blood vessels and critical solid organ) - Affords excellent pain relief (has an independent role in chronic pain management) To date the use of cryoablation in children remains novel and under reported. The purpose of this registry is to audit the current range of applications, technical success rate, safety profile, complication rate and efficacy of cryoablation procedures in children. This registry would, as a minimum, clarify current practice and outcomes within individual centres, allowing teams to audit and benchmark their own procedures and aiming to align practice amongst individual hospitals. A registry would aim to generate a body of evidence to establish parameters for best practice and may highlight conditions that respond better or worse than others to this novel therapy. The audit may lead to a clinical trial for the treatment of one or more specific conditions but in the interim would provide evidence for the efficacy and safety of the procedure and will aim to protect against indiscriminate use of this treatment modality in children in the future. Registry design: This is a prospective multi-centre, open, non-controlled repeat treatment registry and data collection in collaboration with individual hospitals in the UK and Europe. The proposal is for a robust, multi-centre data collection system to support and establish the treatment pathway, safety parameters and outcomes of paediatric cryoablation. The number of procedures performed in each centre will be understandably small, given the specialist nature of this emerging modality and the small numbers of patients being offered this treatment. The registry aims to collect standardised data from all centres performing cryoablation in children to allow robust audit of this procedure. Multiple data sets will be collected and entered into an anonymised web based host. Upon completion of recruitment and follow up, the data will be subject to uni-variate and multi-variate analysis. The registry is designed with the patient at the centre of the data collection and outcomes. Anonymised data will be analysed collectively but will ultimately be owned and retained by individual trusts. Details of the full data set proposed are detailed in the attached study protocol.


Recruitment information / eligibility

Status Recruiting
Enrollment 40
Est. completion date July 1, 2026
Est. primary completion date February 1, 2026
Accepts healthy volunteers No
Gender All
Age group N/A to 18 Years
Eligibility Inclusion Criteria: - all children in whom a clinical decision is made to treat with percutaneous cryoablation, to include those in whom cryoablation was not technically or clinically possible at any stage. Exclusion Criteria: - none

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
Cryoablation
Image guided cryoablation therapy of soft tissue lesions

Locations

Country Name City State
United Kingdom Great London

Sponsors (1)

Lead Sponsor Collaborator
Great Ormond Street Hospital for Children NHS Foundation Trust

Country where clinical trial is conducted

United Kingdom, 

References & Publications (1)

Shaikh R, Alomari AI, Kerr CL, Miller P, Spencer SA. Cryoablation in fibro-adipose vascular anomaly (FAVA): a minimally invasive treatment option. Pediatr Radiol. 2016 Jul;46(8):1179-86. doi: 10.1007/s00247-016-3576-0. Epub 2016 Feb 22. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Occurrence and severity of complications arising from cryoablation treatment Documentation and severity scoring of any complications arising from a cryoablation procedure, using the Society of Interventional Radiology (SIR) standards of practice committee classification of complications by outcome scoring system. The range of the outcome scoring system is A-F, with A being the least severe (no therapy, no consequence), and F being the most severe (resulting death). [Omary et al. J Vasc Interv Radiol 2003; 14:S293-S295] 2 years
Secondary Change in maximal diameter of lesion following treatment In patients where this is applicable, measure change in maximal lesion diameter on ultrasound or MRI imaging, comparing baseline (pre-treatment) lesion diameter to (post treatment) lesion diameter at 2 years. Subsequent lesion measurements will be made annually up to 5 years (for patients included in follow up). 5 years
Secondary Change in symptomatology following treatment Where applicable, measure change in symptomatology post treatment, as assessed by PedsQL Pediatric Quality of Life Inventory UK questionnaire version 4.0. This is a scored questionnaire used for the assessment of physical functioning, emotional functioning, social functioning and school functioning. It is completed by both the child (child report) and the parent (parent report). Each questionnaire consists of 23 items graded 0-4 where 0 equates to no functional deficit and a maximum achievable score of 92 equates to the most severe functional deficit. Combined parent and child reports are collated to give a range of scores of 0-184 per assessment. 2 years
Secondary Procedure failure This is a composite outcome defined as having the presence of any (or all) of the following: absence of consent, patient not fit for procedure, clinical complication, technical failure of equipment. This data will be collected over the 3 years of procedure recruitment into the registry. 3 years
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