Gerard Millen

ORCID: 0000-0003-1446-3228
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About
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Research Areas
  • Childhood Cancer Survivors' Quality of Life
  • Ocular Oncology and Treatments
  • Respiratory viral infections research
  • COVID-19 and healthcare impacts
  • Respiratory Support and Mechanisms
  • Cancer Genomics and Diagnostics
  • Cancer-related Molecular Pathways
  • Histiocytic Disorders and Treatments
  • Neonatal Respiratory Health Research
  • Statistical Methods in Clinical Trials
  • Pharmaceutical studies and practices
  • Teratomas and Epidermoid Cysts
  • Metastasis and carcinoma case studies
  • Vascular Malformations and Hemangiomas
  • Healthcare cost, quality, practices
  • Ocular Infections and Treatments
  • Renal and related cancers
  • Viral-associated cancers and disorders
  • Gastrointestinal Tumor Research and Treatment
  • Immunotherapy and Immune Responses
  • Optimal Experimental Design Methods
  • Meta-analysis and systematic reviews
  • Effects of Radiation Exposure
  • Nutrition, Genetics, and Disease
  • Cutaneous lymphoproliferative disorders research

Birmingham Children's Hospital
2017-2025

Birmingham Women’s and Children’s NHS Foundation Trust
2019-2024

Cancer Research UK Clinical Trials Unit
2020-2021

University of Birmingham
2020-2021

NIHR Birmingham Biomedical Research Centre
2021

NIHR Clinical Research Network
2017

Heartlands Hospital
2014

Heart of England NHS Foundation Trust
2012

Good Hope Hospital
2011

Abstract Background Children with cancer are frequently immunocompromised. While children generally thought to be at less risk of severe SARS-CoV-2 infection than adults, comprehensive population-based evidence for the in is unavailable. We aimed produce incidence and outcomes from attending all hospitals treating this population across UK. Methods Retrospective prospective observational study UK under 16 diagnosed through data collection providing care population. Eligible patients tested...

10.1038/s41416-020-01181-0 article EN cc-by British Journal of Cancer 2020-12-10

The identification of somatic RB1 variation is crucial to confirm the heritability retinoblastoma. We and others have previously shown that, when tumour DNA unavailable, cell-free (cfDNA) derived from aqueous humour (AH) can be used identify pathogenic variation. Here we report variant detection, as well cfDNA concentration in an extended cohort 75 AH samples 68 patients. show highly variable significantly correlated with collection point AH. Cell-free concentrations above 5 pg/µL enabled...

10.3390/cancers16081565 article EN Cancers 2024-04-19

Clinical trials can be separated into phase I (dose finding and safety), II (activity or early efficacy), III (efficacy compared with current standard of care) occasionally IV (postmarketing studies). A new compound would usually have to go through I–III studies sequentially all the financial regulatory hurdles this poses. recent study has estimated that only 13.8% compounds tested will successful in achieving a marketing license.1 Adaptive designs are an extensive class flexible tools...

10.1136/archdischild-2019-317826 article EN cc-by Archives of Disease in Childhood Education & Practice 2019-10-29

Children with cancer are not at increased risk of severe SARS-CoV-2 infection; however, adults haematological malignancies have infections compared non-haematological malignancies.

10.1136/archdischild-2021-322062 article EN cc-by Archives of Disease in Childhood 2021-07-22

e22016 Background: Novel anticancer therapies are regularly prescribed outside their marketing authorization or through compassionate use programs to children, adolescents and young adults. Until recently, safety efficacy data on those prescriptions were neither prospectively nor systematically collected pharmacovigilance declarations largely underreported. Methods: SACHA-INTERNATIONAL (NCT04477681) is a prospective international non-interventional study developed within the Innovative...

10.1200/jco.2025.43.16_suppl.e22016 article EN Journal of Clinical Oncology 2025-05-28

Abstract Most children with high-risk Langerhans cell histiocytosis (LCH) have BRAFV600E mutation. alleles are detectable in myeloid mononuclear cells at diagnosis but it is not known if the cellular distribution of mutation evolves over time. Here, profiles 16 patients disease were analyzed. Two received conventional salvage chemotherapy, 4 on inhibitors tracked intervals 3 to 6 years, and 10 patients, also given inhibitors, analyzed more than 2 years after diagnosis. In contrast responding...

10.1182/bloodadvances.2021006732 article EN cc-by-nc-nd Blood Advances 2022-09-16

Abstract Background Retinoblastoma is the most common intra-ocular malignancy in children and frequently presents very young patients who commonly require intravenous carboplatin. Delivering this challenging due to a lack of uniform dosing recommendations, rapid changes physiological function risk side-effects. Methods We conducted retrospective review neonates infants UK with retinoblastoma, have undergone carboplatin therapeutic drug monitoring (TDM). report on pharmacokinetic, treatment...

10.1038/s41416-024-02728-1 article EN cc-by British Journal of Cancer 2024-06-13

Early phase trials provide crucial information about new medicines that allow them to be taken forward into larger confirmatory studies. Paediatric early studies are becoming more common, particularly in the era of precision therapy. There almost 600 active paediatric I/II listed on clinicaltrials.gov. Conventionally, dose-escalation use rule-based designs such as 3+3 to guide dose decisions. A trial is considered have a design if predefined rules used decisions escalate, continue or...

10.1136/archdischild-2019-316931 article EN cc-by Archives of Disease in Childhood Education & Practice 2019-10-30

Abstract Juvenile Xanthogranuloma (JXG), the commonest type of non-Langerhans cell histiocytosis, is regarded as a benign self-limiting condition infancy, characterised by asymptomatic yellow brown papulonodular lesions, usually confined to skin but occasionally affecting eyes or internal organs. Skin lesions characteristically regress spontaneously within 3-6 years. We describe an unusually aggressive cutaneous presentation requiring input from paediatric oncology. A 6 year old boy...

10.1093/bjd/ljad483.027 article EN British Journal of Dermatology 2024-01-01

Intracranial germ cell tumors are a heterogeneous group of tumors, broadly classified into germinomatous, nongerminomatous, or teratoma subtypes. Treatment has evolved over recent decades to include multimodal therapy combining surgery, radiotherapy, and chemotherapy. Although the majority intracranial germs treated successfully, management can be fraught with complexities present significant clinical challenges. Bifocal disease is well described, but rare, therefore its behavior not...

10.4103/ctm.ctm_36_17 article EN Cancer translational medicine 2018-01-01

e21509 Background: Participation of children with advanced solid cancers in phase I trials raises ethical and logistic dilemmas. Life-expectancy beyond 8-12 weeks is a common inclusion criterion, but it can be difficult to gauge. This multicentric European study assessed the mortality survival rates pediatric trials. Methods: Retrospective patients aged < 18 years tumors enrolled ITCC centres between 2015-2017. Outcome variables were described prognostic factors analysed. Results: 256...

10.1200/jco.2019.37.15_suppl.e21509 article EN Journal of Clinical Oncology 2019-05-20

10020 Background: Phase I/II trials play a key role for children with relapsed/refractory tumors. Life expectancy beyond 8-12 weeks is common eligibility criterion. However, there are no objective means to determine life trial candidates. A better understanding of the risk factors associated early mortality on could maximize efficiency such trials, whilst ensuring ethical aspects recruitment. Methods: Patients solid tumors or lymphomas aged < 18 years and participating in interventional...

10.1200/jco.2023.41.16_suppl.10020 article EN Journal of Clinical Oncology 2023-06-01

<h3>Aim</h3> The 2012 RCPCH position statement described vitamin D deficiency as a significant health risk<sup>1</sup>. 2016 Scientific Advisory Committee on Nutrition (SACN) report now recommends starting supplements at birth until 5 years of age in all children living the UK. A citywide intervention 2013 reduced incidence symptomatic deficiency<sup>2</sup>. regional survey aimed to explore parental awareness Vitamin supplementation and their mothers, compare large urban area with other...

10.1136/archdischild-2017-313087.166 article EN 2017-05-01

A 6 month old girl was referred to the paediatric assessment unit with a haemoglobin of 12 g/L. She had no history weight loss, fever or night sweats, but three week black stools. pale, 1 × cm blue lesion on her upper gum and apparent hepatomegaly 4–5cm. petechiae, lymphadenopathy splenomegaly. The FBC showed microcytic anaemia very low ferritin marked thrombocytopenia platelet count 7. blood transfusion arranged. Her total differential white cell counts were normal. renal liver function...

10.1136/archdischild-2017-313087.110 article EN 2017-05-01
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