| Unknown | Validation of Molecular and Protein Biomarkers in Sepsis Sepsis, Cardiac Arrest, Pneumonia | — | 2020-02-25 |
| Completed | CMO Letter to Reduce Inappropriate Antibiotic Prescribing Winter 2019/2020 Prescribing, Off-Label | N/A | 2019-08-31 |
| Completed | CMO Letter to Reduce Unnecessary Antibiotic Prescribing and Broad Spectrum Prescribing Winter 2018-9 Prescribing, Off-Label | N/A | 2018-11-01 |
| Completed | Cohort Study of Healthcare Workers Receiving Imvanex® Monkeypox | — | 2018-10-30 |
| Completed | Randomized Controlled Trial on Uptake of NHS Health Checks Cardiovascular Diseases | N/A | 2018-03-29 |
| Completed | CMO Letter to Reduce Unnecessary Antibiotic Prescribing March 2018 Prescribing, Off-Label | N/A | 2018-02-27 |
| Completed | A Study to Assess the Carriage of Pneumococci in Children Aged ≤8 Years, and Their Household Contacts Immunization; Infection | — | 2018-02-14 |
| Completed | Assessment of Viral Shedding in Children Previously in Receipt of Multiple Doses of Live Attenuated Influenza Influenza Vaccination, Influenza, Vaccination | Phase 4 | 2017-10-02 |
| Completed | Observational Follow up of Prior HPV Vaccinees Human Papillomavirus Virus | — | 2016-12-01 |
| Completed | PRIME Follow up - Quadri Meningo Vacinees Meningococcal Disease | — | 2016-12-01 |
| Completed | A Trial to Improve the Healthiness of Packed Lunches in Primary School Aged Children Obesity, Childhood, Diet Modification | N/A | 2016-11-09 |
| Completed | Childhood Influenza Immunisation in General Practice Invitation Trial Influenza, Human | N/A | 2016-10-01 |
| Withdrawn | Childhood Influenza Immunisation Invitation Trial in Schools Influenza, Human | N/A | 2016-09-01 |
| Unknown | Improving the Detection of Active Tuberculosis in Accident and Emergency Departments Latent Tuberculosis, Active Tuberculosis | — | 2016-05-01 |
| Withdrawn | Host-pathogen Interactions in Meningococcal Disease: Finding the Key That Fits the Lock Meningitis | — | 2016-03-01 |
| Completed | A Study to Assess the Carriage of Pneumococci in Children Aged 1-5 Years, and Their Household Contacts Nasal Carriage of Pneumococci | — | 2015-07-01 |
| Completed | A Trial Comparing Two Pertussis-containing Vaccines in Pregnancy and Vaccine Responses in UK Mothers and Their Responses to Infant Immunisations | Phase 4 | 2014-10-01 |
| Completed | A Phase III/IV Open-label Study of the Immunogenicity and Safety of a Single Dose of a Live Attenuated Influen Live Attenuated Influenza Vaccine | Phase 4 | 2014-09-01 |
| Completed | Pertussis and Meningitis C Concomitant Vaccination in Adolescents Pertussis, Meningitis, Preventive Immunization; Meningitis | Phase 4 | 2013-09-01 |
| Completed | Hepatitis B Vaccination in Infants Meningococcal Disease, Pneumococcal Disease, Haemophilus Influenzae Serotype b Disease | Phase 4 | 2013-07-01 |
| Completed | Comparison of Two Meningococcal ACWY Conjugate Vaccines Meningococcal Meningitis | Phase 2 / Phase 3 | 2012-06-01 |
| Withdrawn | Ethnicity Data in HIV Positive Men Who Have Sex With Men HIV | — | 2011-03-01 |
| Completed | Prognostic Value of Interferon Gamma Release Assays in Predicting Active Tuberculosis Among Individuals With, Tuberculosis, Latent Tuberculosis | — | 2010-08-01 |
| Completed | A Study to Validate a New Oral Fluid/Saliva Antibody Test for Novel H1N1v Influenza H1N1 Virus | — | 2010-01-01 |
| Completed | Reactogenicity Study of Cervarix and Gardasil in UK Adolescent Girls HPV Infections | Phase 4 | 2009-09-01 |
| Completed | Study to Evaluate the Immune Response of United Kingdom (UK) Infants Receiving DTaP/Hib/IPV, Meningococcal C C Meningococcal Infections, Pneumococcal Infections | Phase 4 | 2008-02-01 |
| Completed | A Study to Assess the Impact of Pneumococcal Conjugate Vaccination Programme on the Carriage of Pneumococci Pneumococcal Disease | — | 2008-01-01 |
| Completed | A Study to Gather Safety Data Following Administration of a Hib-containing Booster Vaccine in Children Aged Tw Haemophilus Infections | — | 2007-12-01 |
| Completed | A Phase IV Study to Evaluate the Immunogenicity and Safety in UK Laboratory Workers of Menitorix Vaccination | Phase 4 | 2007-07-01 |
| Completed | Response of Older Adults to Influenza Vaccination With Regard to Cytomegalovirus (CMV) Status Influenza | Phase 4 | 2007-03-01 |
| Completed | Meningococcal B Vaccination in University Students Neisseria Meningitidis Serogroup B | Phase 2 | 2006-02-01 |
| Completed | Response of United Kingdom (UK) Infants to a Reduced Primary Schedule With Meningococcal C and Pneumococcal Co Pneumococcal Infections, Meningococcal Infections | Phase 4 | 2005-04-01 |
| Completed | Immunogenicity and Reactogenicity of a Meningococcal B Outer Membrane Vesicle Vaccine Given in a 0,6,12 Month Neisseria Meningitidis | Phase 2 | 2005-01-01 |
| Completed | Evaluation of the Immunogenicity and Reactogenicity of a Pneumococcal Conjugate Vaccine in Healthy Adults Streptococcus Pneumoniae | Phase 2 | 2004-01-01 |
| Completed | The Immediate and Longterm Immune Responses of UK Infants and Young Children to a Booster Dose of Hib Vaccine Haemophilus Influenzae Type b | Phase 4 | 2003-04-01 |
| Completed | Immunogenicity of a Reduced Primary Schedule for Pneumococcal Conjugate Vaccine in UK Infants Streptococcus Pneumoniae | Phase 2 | 2000-09-01 |
| Withdrawn | Assessment of Novel Pneumococcal Conjugate Vaccination Scheduled in UK Infants Vaccination, Immunization | Phase 4 | — |