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 d

  • 24

    Duchenne muscular dystrophy

    Duchenne muscular dystrophy is a severe genetic disorder that progressively weakens muscles throughout the body, primarily affecting boys and leading to difficulties with movement, breathing, and heart function.

  • 13

    Ductal adenocarcinoma of pancreas

    Pancreatic ductal adenocarcinoma is the most common and deadliest form of pancreatic cancer, affecting thousands of people each year. Understanding this disease, its symptoms, and treatment options can help patients and their families navigate the difficult journey ahead.

  • 4

    Dupuytren’s contracture

    Dupuytren’s contracture is a hand condition that causes one or more fingers to bend toward the palm, making them impossible to straighten completely. This gradual condition affects the tissue beneath the skin and most commonly impacts the ring and little fingers.

  • 1

    Dyskinesia

    Dyskinesia refers to involuntary, uncontrolled movements that can affect different parts of the body. While often linked to Parkinson’s disease treatment, it’s not a symptom of the disease itself, but rather a complication that can develop from certain medications.

  • 4

    Dyslipidaemia

    Dyslipidaemia is a condition where the levels of fats in your blood are not in the healthy range, which can increase your risk of heart disease and stroke.

  • 3

    Dysmenorrhoea

    Dysmenorrhoea, the medical term for painful menstrual periods, affects more than half of women who menstruate and is one of the most common reasons for school and work absence among those of reproductive age.

  • 4

    Dyspepsia

    Dyspepsia, commonly known as indigestion, is a widespread digestive problem affecting up to one in four people at some point in their lives, causing discomfort in the upper belly that can range from mild to severe.

  • 1

    Dyspnoea

    Dyspnoea, commonly known as shortness of breath, is the uncomfortable feeling that you cannot get enough air into your lungs. It can affect your daily activities and quality of life, but understanding its causes and learning to manage it can help you breathe easier.

  • 1

    Dystonia

    Dystonia is a movement disorder that causes muscles to contract involuntarily, leading to twisting motions, repetitive movements, or unusual postures that a person cannot control. The condition can affect one part of the body or spread to multiple areas, and while there is no cure, various treatments can help manage symptoms and improve quality of life.

  • 1

    Dystonic tremor

    Dystonic tremor is a specific type of shaking that occurs when muscles tense up involuntarily due to dystonia, a disorder that causes unwanted muscle contractions.