Explore popular diseases in clinical trials

Check which popular diseases are currently being frequently studied.

See also our rare diseases glossary and drug database.

Starting by letter

To open the diseases glossary, select a letter from the list below.

Most popular diseases

The list below features the most popular diseases currently involved in ongoing clinical trials.

Disease trials
Non-small cell lung cancer 228
Breast cancer 94
Obesity 86
Prostate cancer 73
Colorectal cancer 69
Ovarian cancer 66
Non-small cell lung cancer metastatic 66
Crohn’s disease 61
Type 2 diabetes mellitus 54
Rheumatoid arthritis 54
Triple negative breast cancer 52
Hormone receptor positive HER2 negative breast cancer 52
Asthma 51
Acute myeloid leukaemia 50
Squamous cell carcinoma of head and neck 50
Chronic kidney disease 49
Neoplasm 48
Colorectal cancer metastatic 47
Hepatocellular carcinoma 47
Systemic lupus erythematosus 40
Colitis ulcerative 40
Multiple sclerosis 39
Overweight 39
Dementia Alzheimer’s type 39
Gastric cancer 38
Myelodysplastic syndrome 37
Parkinson’s disease 37
HER2 positive breast cancer 37
Glioblastoma 37
Atrial fibrillation 34
Bladder cancer 34
Chronic obstructive pulmonary disease 33
Ischaemic stroke 33
Prostate cancer metastatic 33
Myasthenia gravis 32
Renal transplant 31
Type 1 diabetes mellitus 31
Head and neck cancer 31
Endometrial cancer 31
Malignant melanoma 31
Non-small cell lung cancer stage IV 31
Diffuse large B-cell lymphoma 31
Breast cancer metastatic 31
HIV infection 30
Dermatitis atopic 28
Cholangiocarcinoma 28
Coronary artery disease 28
Plasma cell myeloma 28
Pulmonary arterial hypertension 28
Neoplasm malignant 27
Rectal cancer 27
Renal cell carcinoma 26
Pancreatic carcinoma 26
Schizophrenia 26
Duchenne muscular dystrophy 25
Non-small cell lung cancer stage III 25
Follicular lymphoma 25
COVID-19 25
Migraine 24
Hormone receptor positive breast cancer 24
Idiopathic pulmonary fibrosis 24
Non-small cell lung cancer stage IIIB 24
Sepsis 24
Chronic lymphocytic leukaemia 24
Soft tissue sarcoma 24
Mantle cell lymphoma 23
Small cell lung cancer extensive stage 23
Colon cancer 23
Fallopian tube cancer 23
Influenza 22
Small cell lung cancer 21
Interstitial lung disease 21
Acute myocardial infarction 21
Oesophageal adenocarcinoma 21
Amyotrophic lateral sclerosis 21
Chronic rhinosinusitis with nasal polyps 20
Cystic fibrosis 20
Glioma 20
Myelofibrosis 19
Neuroblastoma 19
B-cell lymphoma 19
Sickle cell disease 19
Major depression 19
Procedural pain 19
Axial spondyloarthritis 18
Osteoarthritis 18
Breast cancer female 17
Critical illness 17
Acute kidney injury 17
Hereditary angioedema 17
Relapsing-remitting multiple sclerosis 16
Acute coronary syndrome 16
IgA nephropathy 16
Psoriasis 16
Gastrooesophageal cancer 16
Ewing’s sarcoma 16
Cardiac failure 16
Vitiligo 16
Transitional cell carcinoma 15
Giant cell arteritis 15

Diseases starting with w

  • 7

    Waldenstrom’s macroglobulinaemia

    Waldenstrom’s macroglobulinaemia is a rare, slow-growing blood cancer that affects white blood cells and causes production of an abnormal protein that can thicken the blood, making it harder to flow through blood vessels.

  • 1

    Waldenstrom’s macroglobulinaemia recurrent

    Waldenstrom’s macroglobulinaemia is a rare blood cancer that cannot be completely cured, which means that after successful treatment, the disease will eventually return. Understanding what happens when the cancer comes back and knowing your treatment options can help you manage this condition effectively.

  • 3

    Waldenstrom’s macroglobulinaemia refractory

    When Waldenstrom’s macroglobulinemia comes back after treatment or stops responding to therapy, patients and their healthcare teams face new decisions about the best path forward.

  • 1

    Warm autoimmune haemolytic anaemia

    Warm autoimmune haemolytic anaemia is a rare condition where the body’s immune system mistakenly attacks and destroys its own red blood cells, leading to profound fatigue and other serious symptoms that can severely impact daily life.

  • 2

    Weaning failure

    Between 20% and 30% of patients requiring mechanical ventilation face significant challenges when doctors try to remove their breathing support, a condition known as weaning failure. Understanding why this happens and how to address it can make a crucial difference in recovery.

  • 4

    Wheezing

    Wheezing is a high-pitched whistling or rattling sound you hear when breathing, usually when air struggles to pass through narrowed or partially blocked airways. It can be a temporary reaction to a cold or allergies, or it may signal a more serious health condition that requires medical attention.

  • 2

    White matter lesion

    White matter lesions appear as bright spots on brain scans and signal areas where the brain’s communication pathways have been damaged. While some lesions are a normal part of aging and cause no symptoms, others can lead to memory problems, balance difficulties, and changes in mood.

  • 2

    Wiskott-Aldrich syndrome

    Wiskott-Aldrich syndrome is a rare genetic condition that disrupts the immune system, causes dangerous bleeding problems, and leads to persistent eczema. Without proper treatment, this inherited disorder can become life-threatening, but modern medical advances offer hope through stem cell transplantation and gene therapy.

  • 2

    Wolfram syndrome

    Wolfram syndrome is a rare genetic condition that damages multiple body systems over time, usually beginning with diabetes and vision problems in childhood and progressing to affect the brain and other organs.