| Advanced MRI in IVH (NCT07412886) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2026-02-16 |
| Calprotectin and Gut Disease Study (NCT07112794) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2025-11-01 |
| Thalamic Recordings in Children Undergoing SEEG (NCT06453759) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2025-09-01 |
| The FLaME Cognitive Rehabilitation Study for Childhood Brain Tumour (NCT06770335) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2025-03-10 |
| Gut Health in Children With Cancer (NCT06899581) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2025-01-30 |
| Seen and Be Heard: Ensuring Fair Cancer Care for All Children (NCT06481527) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2024-09-02 |
| Medium to Long Term Outcomes of Selective Dorsal Rhizotomy (NCT06518889) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2024-06-25 |
| Micro-dosing Indocyanine Green (ICG) in Children (NCT06421103) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2024-06-01 |
| First-in-human Experience Using Novel Ultraflexible Low-impedance Electrode Arrays: an IDEAL Stage 1 Study (NCT06116279) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2024-02-01 |
| SMILES: Study of Montelukast in Sickle Cell Disease (NCT04351698) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2023-10-16 |
| 90Y-labelled Anti-CD66 ab in Childhood High Risk Leukaemia (NCT04856215) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2023-09-29 |
| Base Edited CAR T Cells Against AML: Deep Conditioning Ahead of Allogeneic Stem Cell Transplantation (NCT05942599) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2023-07-21 |
| Improving Phosphate Control in Children With CKD (NCT05439980) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2023-06-20 |
| Lentiviral Gene Therapy for p47 AR-CGD (NCT05207657) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2023-03-20 |
| Optical Coherence Tomography Angiography (OCTA) in Children's Cardiac Surgery (NCT05568849) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2022-10-01 |
| How Does Task Loading in PICU Impact on Clinician Situational Awareness and Awareness of the Passage of Time? (NCT05383222) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2022-09-01 |
| Base Edited CAR7 T Cells to Treat T Cell Malignancies (TvT CAR7) (NCT05397184) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2022-04-19 |
| Brain Involvement in Dystrophinopathies Part 2 (NCT04668716) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2021-10-11 |
| Babies in Glasses; a Feasibility Study. (NCT05048550) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2021-09-09 |
| Gene-STEPS: Shortening Time of Evaluation in Paediatric Epilepsy Services (NCT06082999) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2021-09-01 |
| Infant and Child European Cryoablation Project ICECaP (NCT03721783) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2021-06-24 |
| Brain Involvement in Dystrophinopathies Part 1 (NCT04583917) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2021-03-30 |
| Comparison of Pre- vs Post-dilution Haemodiafiltration in Children (NCT04210154) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2021-02-01 |
| Swallowing, Feeding and Eating in Children Born With Oesophageal Atresia/Trache-oesophageal Fistula (OA/TOF) (NCT04183621) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2020-12-15 |
| Methods of Providing Information Prior to an Alveolar Bone Graft (NCT04381078) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2020-12-09 |
| Natural History Study of Pyruvate Dehydrogenase Deficiency (NCT05257005) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2020-11-01 |
| TT52CAR19 Therapy for B-cell Acute Lymphoblastic Leukaemia (B-ALL) (NCT04557436) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2020-08-12 |
| Identifying and Understanding Risk Factors for Instability and Adverse Events Associated With Chest Physiotherapy in Ventilated Children (NCT04146753) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2020-07-29 |
| MELD as an Adjunct for SEEG Trajectories (NCT04383028) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2020-07-01 |
| COVID-19 Staff Testing of Antibody Responses Study (Co-Stars) (NCT04380896) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2020-04-27 |
| Role of Immune and Inflammatory Response in Recipients of Allogeneic Haematopoietic Stem Cell Transplantation (SCT) Affected by Severe COVID19 (NCT04349540) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2020-04-15 |
| Evaluation of Aid to Diagnosis for Congenital Dysplasia of the Hip in General Practice (NCT04101903) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2020-03-06 |
| Newborn Screening for Spinal Muscular Atrophy (SMA) - a Proof of Principle Study Using Anonymised Blood Spots. (NCT05237544) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2019-11-11 |
| Intermittent Dosing Of Selumetinib In Childhood NF1 Associated Tumours (NCT03326388) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2019-09-26 |
| Novel Network Analysis of Intracranial Stereoelectroencephalography (NCT03916848) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2019-06-16 |
| 'Fitness To Fly' Tests In Children With Type II Respiratory Failure (NCT03824223) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2019-02-01 |
| Differences in Access to Emergency Paediatric Intensive Care and Care During Transport (NCT03520192) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2019-01-01 |
| Lentiviral Gene Therapy for X-linked Severe Combined Immunodeficiency (NCT03601286) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2018-12-21 |
| Electroretinogram in Autistic Spectrum Disorders (NCT03422016) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2018-09-03 |
| Monitor Faecal Calprotectin Concentration in Infants With Heart Defects (NCT03255564) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2018-05-01 |
| Advanced MRI for Posterior Fossa Tumours (NCT03471026) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2018-04-09 |
| NIRS to Evaluate Haemodynamic Reserve in Paediatric Moyamoya (NCT05160454) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2018-02-14 |
| What is the Feasibility of the ISTEP Exercise Test in Boys With Haemophilia (NCT04076306) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2018-01-25 |
| Efficacy and Safety of the Cryopreserved Formulation of OTL-101 in Subjects With ADA-SCID (NCT03765632) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2018-01-03 |
| Conservative Versus Liberal Oxygenation Targets in Critically Ill Children (NCT03040570) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2017-03-04 |
| Calcium Balance Studies in Children With CKD and on Dialysis (NCT03285854) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2017-02-01 |
| Measuring the Metabolic Cost of Fever (NCT02939781) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2016-11-01 |
| Kidney Transplant Monitoring Using Near Infra-red Spectroscopy (NCT02956018) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2016-11-01 |
| Yttrium-90 Anti CD66 Monoclonal Antibody in Childhood Relapsed/Refractory Leukaemia (NCT04082286) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2016-05-01 |
| The Management of Systemic-Pulmonary Collateral Blood Flow in Cyanotic Children During Cardiopulmonary Bypass - Pilot Study (NCT02358382) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2016-03-01 |
| FIRST-line Support for Assistance in Breathing in Children (FIRST-ABC) Feasibility Study (NCT02612415) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2015-11-01 |
| The Use of Home Oral Glucose Tolerance Test Kit in Screening Cystic Fibrosis Related Diabetes (NCT02703155) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2015-10-01 |
| Quality of Postoperative Recovery in Children and Young People (NCT02456519) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2015-06-01 |
| Gait Analysis in Idiopathic Clubfoot Patients Treated by the Ponseti Method (NCT05572411) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2015-03-01 |
| Prevalence of Autistic Spectrum Disorder (ASD) in Children With Haemophilia (NCT05138224) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2014-09-01 |
| Vascular Dysfunction in Paediatric IBD (NCT02161640) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2014-09-01 |
| The Eat Right Emirates Healthy Lifestyle Study (NCT02559076) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2014-09-01 |
| Characteristics and Outcomes of Childhood Moyamoya in the UK (NCT02434302) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2014-08-01 |
| Correlation of Nasopharyngeal (NP) and Lower Oesophageal (LO) Temperatures in Ventilated Children (NCT02201628) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2014-06-25 |
| Gene Therapy for Netherton Syndrome (NCT01545323) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2014-04-01 |
| Biomarkers of Acute Serious Illness in Children (NCT03238040) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2014-04-01 |
| Treosulfan Pharmacokinetics in Children Undergoing Allogeneic HSCT (NCT02048800) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2014-03-01 |
| Haemodiafiltration vs Conventional Haemodialysis in Children (NCT02063776) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2014-02-01 |
| Pathophysiology of Dilated Cardiomyopathy (NCT02001961) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2014-01-01 |
| Improving Standards of Care and Translational Research in Spinal Muscular Atrophy (SMA) (NCT03520179) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2013-12-17 |
| Investigating Prevalence of Disordered Eating in Children With GI Disorders (NCT01872169) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2013-07-01 |
| Blood Propofol Concentrations in Children During Spinal Surgery (NCT01932424) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2013-01-01 |
| Lentiviral (LV) Gene Therapy for Adenosine Deaminase (ADA) Deficiency (NCT01380990) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2012-11-15 |
| Measuring Normal and Impaired Walking in Children Using the GAITRite Walkway (NCT05571501) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2012-05-01 |
| INSPIRE-CF: an Alternative Physiotherapy Model for Children With Cystic Fibrosis (NCT01889927) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2012-05-01 |
| Outcome Study of Endoscopically Inserted Gastrostomy (PEG)Versus Radiologically-guided Insertion of Gastrostomy (RIG)in Children (NCT01920438) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2011-12-01 |
| Lentiviral Gene Therapy for X-Linked Chronic Granulomatous Disease (X-CGD) (NCT01381003) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2011-11-01 |
| How Easy is it to Identify the Cricothyroid Membrane in Children? Can Ultrasound Imagine be Used to Aid Identification? (NCT01637207) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2011-08-01 |
| NEMO1:NEonatal Seizure Using Medication Off-patent (NCT01434225) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2011-08-01 |
| The iStep Study: Development and Validation of an Incremental Exercise Step Test for Children With Cystic Fibrosis (NCT02199340) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2011-07-01 |
| Gene Therapy for X-linked Severe Combined Immunodeficiency (SCID-X1) (NCT01175239) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2011-04-01 |
| Suicide Gene Therapy Trial (NCT01204502) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2011-01-01 |
| Therapeutic Controlled Hypothermia in the Treatment of Neonates With Severe Necrotizing Enterocolitis (NCT01330576) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2010-08-02 |
| Open or Keyhole Surgery Through the Chest for Newborn Babies: Effect on Blood Gases (NCT01467245) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2009-08-01 |
| A Trial of Autologous Bone Marrow Derived Stem Cells in Paediatric Heart Failure (NCT02479776) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2008-05-01 |
| Safety and Efficacy of Emergency On-call Respiratory Physiotherapy Services in the Paediatric Intensive Care Unit (NCT01999426) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2006-07-01 |
| Gene Therapy ADA Deficiency (NCT01279720) | Great Ormond Street Hospital for Children NHS Foundation Trust | 2003-10-01 |