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 231
Breast cancer 125
Neoplasm 123
Plasma cell myeloma 120
Acute myeloid leukaemia 107
Neoplasm malignant 92
Colitis ulcerative 86
Prostate cancer 85
Obesity 84
Colorectal cancer metastatic 82
Ovarian cancer 72
Colorectal cancer 71
Crohn’s disease 69
Dementia Alzheimer’s type 69
Type 2 diabetes mellitus 68
Dermatitis atopic 62
Hepatocellular carcinoma 62
Malignant melanoma 61
Non-small cell lung cancer metastatic 61
Breast cancer metastatic 60
Triple negative breast cancer 60
Asthma 59
HIV infection 58
Rheumatoid arthritis 56
Hormone receptor positive HER2 negative breast cancer 54
Osteoarthritis 54
Chronic lymphocytic leukaemia 52
Renal transplant 52
Chronic kidney disease 51
Squamous cell carcinoma of head and neck 50
Pancreatic carcinoma 48
Parkinson’s disease 45
Atrial fibrillation 45
Ischaemic stroke 44
Oesophageal adenocarcinoma 43
Psoriasis 43
Systemic lupus erythematosus 43
Gastric cancer 43
Multiple sclerosis 42
Endometrial cancer 40
Hormone-refractory prostate cancer 40
Major depression 39
Diffuse large B-cell lymphoma 38
Bladder cancer 38
Non-small cell lung cancer stage IV 37
Chronic obstructive pulmonary disease 37
Overweight 37
Migraine 36
Myelodysplastic syndrome 36
Cardiac failure 36
Glioblastoma 35
Hidradenitis 35
Transitional cell carcinoma 35
Psoriatic arthropathy 34
Acute lymphocytic leukaemia 32
Type 1 diabetes mellitus 32
Hormone receptor positive breast cancer 32
Cholangiocarcinoma 31
COVID-19 31
Bladder transitional cell carcinoma 30
Systemic scleroderma 30
Schizophrenia 30
Myasthenia gravis 29
Renal cell carcinoma 29
Prostate cancer metastatic 29
Oesophageal carcinoma 28
Coronary artery disease 28
Pneumonia 28
Plasma cell myeloma refractory 28
Head and neck cancer 28
HER2 positive breast cancer 28
Cervix carcinoma 27
Follicular lymphoma 27
Adenocarcinoma pancreas 27
Procedural pain 26
Adenocarcinoma gastric 26
Rectal cancer 26
Depression 26
Non-small cell lung cancer stage III 26
Interstitial lung disease 25
Small cell lung cancer extensive stage 25
Pancreatic carcinoma metastatic 25
Metastatic malignant melanoma 25
Fallopian tube cancer 25
Non-small cell lung cancer stage IIIB 24
Myelofibrosis 24
Idiopathic pulmonary fibrosis 24
Colon cancer 24
Pulmonary arterial hypertension 23
Sepsis 23
B-cell lymphoma 23
Soft tissue sarcoma 22
Sjogren’s syndrome 22
Lung neoplasm malignant 21
Mantle cell lymphoma 21
Neovascular age-related macular degeneration 21
Cardiac amyloidosis 21
Breast cancer female 21
Endocrine ophthalmopathy 21
Gastrooesophageal cancer 21

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.

  • 4

    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.

  • 1

    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.