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 238
Breast cancer 131
Neoplasm 124
Plasma cell myeloma 122
Acute myeloid leukaemia 102
Neoplasm malignant 91
Prostate cancer 89
Colitis ulcerative 87
Obesity 81
Colorectal cancer metastatic 80
Crohn’s disease 76
Dementia Alzheimer’s type 75
Ovarian cancer 71
Type 2 diabetes mellitus 71
Colorectal cancer 69
Dermatitis atopic 66
Malignant melanoma 65
Breast cancer metastatic 65
Hepatocellular carcinoma 63
Triple negative breast cancer 62
Asthma 60
Chronic lymphocytic leukaemia 60
Non-small cell lung cancer metastatic 59
Rheumatoid arthritis 58
Squamous cell carcinoma of head and neck 58
HIV infection 57
Hormone receptor positive HER2 negative breast cancer 55
Osteoarthritis 55
Renal transplant 50
Pancreatic carcinoma 49
Chronic kidney disease 49
Ischaemic stroke 45
Parkinson’s disease 44
Atrial fibrillation 44
Systemic lupus erythematosus 43
Multiple sclerosis 42
Gastric cancer 42
Chronic obstructive pulmonary disease 40
Psoriasis 40
Non-small cell lung cancer stage IV 40
Oesophageal adenocarcinoma 40
Hormone-refractory prostate cancer 40
Bladder cancer 40
Migraine 39
Major depression 38
Endometrial cancer 38
Psoriatic arthropathy 37
Transitional cell carcinoma 36
Overweight 36
Myelodysplastic syndrome 36
Glioblastoma 36
Diffuse large B-cell lymphoma 35
Cardiac failure 35
Hormone receptor positive breast cancer 33
Systemic scleroderma 33
COVID-19 32
Cholangiocarcinoma 32
Schizophrenia 32
Type 1 diabetes mellitus 32
Hidradenitis 31
Prostate cancer metastatic 31
Head and neck cancer 31
Myasthenia gravis 30
HER2 positive breast cancer 30
Adenocarcinoma pancreas 30
Cervix carcinoma 29
Coronary artery disease 29
Acute lymphocytic leukaemia 29
Renal cell carcinoma 29
Rectal cancer 29
Follicular lymphoma 28
Plasma cell myeloma refractory 28
Pulmonary arterial hypertension 28
Oesophageal carcinoma 27
Depression 27
Bladder transitional cell carcinoma 27
Pancreatic carcinoma metastatic 27
Adenocarcinoma gastric 26
Pneumonia 26
B-cell lymphoma 25
Acute myocardial infarction 25
Procedural pain 25
Interstitial lung disease 25
Metastatic malignant melanoma 25
Non-small cell lung cancer stage III 24
Colon cancer 24
Amyotrophic lateral sclerosis 24
Non-small cell lung cancer stage IIIB 24
Idiopathic pulmonary fibrosis 24
Myelofibrosis 24
Sjogren’s syndrome 23
Fallopian tube cancer 23
Small cell lung cancer 23
Breast cancer female 23
Endocrine ophthalmopathy 22
B-cell small lymphocytic lymphoma 22
Soft tissue sarcoma 22
Cardiac amyloidosis 22
Lung neoplasm malignant 22
Sepsis 22

Diseases starting with w

  • 10

    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.

  • 2

    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.

  • 4

    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.

  • 3

    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.

  • 5

    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.