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Clinical Trials by Medical Condition

Browse 11611 medical conditions with active clinical trials. Data updated daily from ClinicalTrials.gov.

Conditions Tracked
11,611
Data Source
ClinicalTrials.gov
Updated
Daily

Who's actually running the trials in your condition?

Two people with different diagnoses can walk into very different research worlds. In some conditions, drug companies sponsor close to a third of the open studies. In others it's closer to one in twenty, and nearly everything is run by universities and hospitals. That shapes what kind of trial you're likely to find: new medicines versus studies of therapy, devices, exercise or how existing care is delivered.

We checked 24 common conditions on ClinicalTrials.gov on 28 September 2026, counting only studies that were recruiting.

Condition Recruiting Industry-led Observational With a US site
Rheumatoid arthritis 298 30.9% 35% 26%
Lung cancer 2,317 30.6% 24% 38%
Asthma 378 24.3% 35% 34%
Crohn's disease 330 23.3% 38% 32%
Colorectal cancer 1,582 21.3% 24% 34%
Prostate cancer 1,229 20.3% 23% 49%
Type 2 diabetes 877 20.3% 23% 35%
Leukemia 1,417 19.3% 18% 47%
COPD 433 19.2% 34% 23%
Chronic kidney disease 567 18.2% 33% 31%
Breast cancer 2,452 17.7% 24% 38%
Alzheimer's disease 626 17.4% 32% 45%
Multiple sclerosis 429 17.0% 34% 37%
Heart failure 997 16.6% 38% 33%
Parkinson's disease 681 15.1% 30% 37%
Obesity 1,490 14.6% 23% 41%
Hypertension 1,191 14.4% 34% 36%
Sickle cell disease 167 14.4% 28% 70%
Schizophrenia 379 13.7% 16% 40%
Stroke 1,697 7.0% 26% 24%
Depression 1,448 6.1% 16% 43%
HIV 587 6.0% 24% 49%
Pain 3,497 5.5% 17% 30%
Autism 364 5.5% 23% 44%

Rheumatoid arthritis (30.9%) and lung cancer (30.6%) lead, followed by asthma and Crohn's. At the other end, company money barely shows up. Autism and pain both sit at 5.5%, HIV at 6.0%, depression at 6.1%, stroke at 7.0%. Pain has more recruiting studies than any other condition here, 3,497 of them, and industry leads fewer than 200.

The US column tells its own story. Seven in ten recruiting sickle cell studies have an American site, far more than any other condition on the list. For COPD it's fewer than one in four, and for rheumatoid arthritis about one in four. If you're outside the US and have one of those high-US-share conditions, your local options will be thinner than the headline count suggests.

Industry-led means the lead sponsor is classed as industry on the registry record; many academic studies still get drug or money from a company, which this doesn't capture. Counts use the registry's condition search, so a study can appear under more than one condition. Chronic kidney disease, heart failure and sickle cell disease don't have their own ClinicalMetric page yet, so they aren't linked.

Most Active Conditions

breast cancer 183 stroke 108 cancer 108 prostate cancer 94 obesity 92 heart failure 81 healthy 75 non small cell lung cancer 68 colorectal cancer 63 lung cancer 59 multiple myeloma 57 coronary artery disease 57 hypertension 55 anxiety 53 alzheimer disease 51 parkinson disease 50 ovarian cancer 50 depression 45 chronic pain 45 acute myeloid leukemia 43 pancreatic cancer 43 cardiovascular diseases 43 advanced solid tumors 41 multiple sclerosis 41
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A–Z Directory

Showing conditions with 3+ active trials (1435 of 11611)

A
achilles tendinopathy at 3 achilles tendon rupture 3 acl injury 4 acupuncture 3 acute coronary syndrome 7 acute coronary syndromes 4 acute coronary syndromes acs 3 acute heart failure 3 acute heart failure ahf 3 acute ischemic stroke 23 acute ischemic stroke ais 3 acute kidney injury 17 acute leukemia 9 acute leukemia of ambiguous lineage 4 acute lymphoblastic leukemia 14 acute lymphoblastic leukemia adult 5 acute lymphoblastic leukemia all 3 acute lymphoblastic leukemia in relapse 6 acute lymphoblastic leukemia pediatric 3 acute myeloid leukemia 43 acute myeloid leukemia aml 8 acute myocardial infarction 5 acute myocardial infarction ami 3 acute pain 4 acute pancreatitis 3 acute respiratory distress syndrome 7 acute respiratory failure 4 adenocarcinoma 5 adenoid cystic carcinoma 5 adenovirus 5 adhd 14 adhd attention deficit disorder with hyperactivity 3 adolescent behavior 3 adolescent idiopathic scoliosis ais 3 advanced breast cancer 11 advanced cancer 12 advanced clear cell renal cell carcinoma 3 advanced colorectal carcinoma 3 advanced esophageal squamous cell carcinoma 3 advanced gastric cancer 4 advanced gastroesophageal junction adenocarcinoma 3 advanced heart failure 4 advanced hepatocellular carcinoma 4 advanced lung cancer 3 advanced malignant solid neoplasm 5 advanced malignant solid tumor 4 advanced melanoma 3 advanced non small cell lung cancer 3 advanced ovarian carcinoma 4 advanced pancreatic carcinoma 3 advanced prostate cancer 4 advanced renal cell carcinoma 3 advanced solid tumor 33 advanced solid tumors 41 advanced urothelial carcinoma 4 aerobic exercise 4 age related macular degeneration 7 aggression 3 aging 31 aging disorder 3 airway management 3 alcohol abuse 3 alcohol consumption 3 alcohol drinking 5 alcohol use disorder 19 alcohol use disorder aud 7 alcoholism 3 allergic rhinitis 3 allogeneic hematopoietic stem cell transplantation 4 allostatic load 3 alopecia areata 6 als 3 als amyotrophic lateral sclerosis 4 alveolar bone loss 6 alzheimer dementia 3 alzheimer dementia ad 5 alzheimer disease 51 alzheimer disease ad 4 alzheimer disease early onset 4 alzheimer s disease 18 alzheimer s disease ad 4 aml 7 aml acute myeloid leukemia 4 aml adult 3 amputation 4 amyloidosis 4 amyotrophic lateral sclerosis 14 amyotrophic lateral sclerosis als 4 anal cancer 10 anal fistula 3 analgesia 9 anastomotic leak 3 anatomic stage i breast cancer ajcc v8 4 anatomic stage ii breast cancer ajcc v8 4 anatomic stage iii breast cancer ajcc v8 7 anatomic stage iv breast cancer ajcc v8 4 anca associated vasculitis 3 anemia 15 anemia iron deficiency 4 anesthesia 14 aneurysmal subarachnoid hemorrhage 3 angiosarcoma 3 anorexia nervosa 5 anterior cruciate ligament injuries 7 anterior cruciate ligament rupture 3 anticoagulant adverse reaction 3 antiphospholipid syndrome 3 anxiety 53 anxiety disorders 11 aortic aneurysm 5 aortic diseases 5 aortic dissection 4 aortic stenosis 9 aortic valve disease 6 aortic valve stenosis 9 apathy 4 aphasia 3 appendectomy 3 appendectomy laparoscopic 3 ards 5 arrhythmia 4 arterial hypertension 3 arterial stiffness 3 artificial intelligence 8 artificial intelligence ai 7 ascites hepatic 3 asthma 22 asthma diagnosis 4 asthma in children 6 astigmatism 6 atherosclerosis 7 atherosclerotic cardiovascular disease 4 athletic performance 3 atopic dermatitis 19 atrial fibrillation 31 atrial fibrillation af 29 atrial flutter 7 attention deficit hyperactivity disorder 4 attention deficit hyperactivity disorder adhd 3 atypical hemolytic uremic syndrome 4 autism 13 autism spectrum disorder 30 autism spectrum disorder asd 6 autism spectrum disorders 3 autoimmune diseases 7 autoimmune encephalitis 3 autonomic dysfunction 3
C
cabg 5 cachexia 4 caesarean section 3 cancer 108 cancer metastatic 3 cancer pain 3 cancer survivors 3 cancer survivorship 4 cannabis 3 cannabis use 7 carcinoma 3 carcinoma non small cell lung 10 carcinoma squamous cell 4 cardiac amyloidosis 6 cardiac arrest 6 cardiac arrest ca 7 cardiac arrhythmias 3 cardiac surgery 9 cardio vascular disease 3 cardiogenic shock 12 cardiometabolic diseases 7 cardiomyopathies 7 cardiopulmonary bypass 3 cardiovascular disease 7 cardiovascular diseases 43 cardiovascular diseases cvd 5 cardiovascular risk factor 3 cardiovascular surgery 3 caregiver burden 4 caregiver stress 3 caries dental 3 carotid artery diseases 5 carotid artery stenosis 6 carpal tunnel syndrome 9 carpal tunnel syndrome cts 6 castration resistant prostate carcinoma 3 cataract 11 catheter ablation 3 celiac disease 6 celiac disease in children 4 central nervous system diseases 4 central nervous system lymphoma 5 cerebral infarction 3 cerebral palsy 16 cerebral palsy cp 8 cerebral small vessel diseases 4 cerebral vascular accident 3 cerebrovascular disorders 6 cervical cancer 32 cervical cancer screening 4 cervical myelopathy 5 cervical radiculopathy 5 cervical spinal cord injury 4 cervicogenic headache 3 cervix cancer 3 cesarean section 8 cesarean section complications 5 cgvhd 3 chemoradiotherapy 6 chemotherapy 16 chemotherapy effect 10 chemotherapy induced peripheral neuropathy 3 chemotherapy side effects 3 child development 6 child maltreatment 6 child only 3 childhood cancer 4 childhood obesity 5 children 11 children only 4 cholangiocarcinoma 12 chronic back pain 3 chronic coronary syndrome 6 chronic disease 6 chronic fatigue syndrome cfs 3 chronic graft versus host disease 6 chronic heart failure 3 chronic hepatitis b 6 chronic inflammatory demyelinating polyneuropathy 3 chronic insomnia 4 chronic kidney disease 18 chronic kidney diseases 11 chronic limb threatening ischemia 3 chronic low back pain 9 chronic low back pain clbp 7 chronic lymphocytic leukemia 17 chronic lymphocytic leukemia cll 5 chronic migraine 3 chronic myeloid leukemia 4 chronic myeloid leukemia cml 3 chronic myelomonocytic leukemia 5 chronic myelomonocytic leukemia cmml 3 chronic non specific low back pain 3 chronic obstructive pulmonary disease 14 chronic obstructive pulmonary disease copd 8 chronic pain 45 chronic spontaneous urticaria csu 3 chronic stroke 4 chronic subdural hematoma 3 cidp 3 cigarette smoking 3 cin2 3 circadian rhythm 3 cirrhosis 13 cirrhosis liver 3 ckd 5 cleft palate children 4 clostridium difficile infection 4 cognition 16 cognitive change 6 cognitive decline 7 cognitive disorder 3 cognitive dysfunction 15 cognitive impairment 18 colitis ulcerative 4 colo rectal cancer 6 colon cancer 11 colonoscopy 4 colorectal adenocarcinoma 4 colorectal cancer 63 colorectal cancer crc 8 colorectal cancer metastatic 5 colorectal cancer screening 5 colorectal carcinoma 9 colorectal neoplasms 15 communication 3 community acquired pneumonia 4 community acquired pneumonia cap 3 complication 3 complication of surgical procedure 3 concussion brain 3 congenital adrenal hyperplasia 3 congenital diaphragmatic hernia 4 congenital heart disease 16 congenital hypothyroidism 3 constipation 6 contraception 6 copd 23 copd chronic obstructive pulmonary disease 13 copd exacerbation 3 coronary arterial disease cad 10 coronary artery disease 57 coronary artery disease cad 4 coronary artery disease progression 3 coronary heart disease 7 coronary microvascular disease 3 covid 19 17 covid19 3 crc 4 crc colorectal cancer 3 critical illness 29 critical limb ischemia 4 crohn disease 19 crohn disease cd 6 crohn s disease 14 cryptogenic stroke 3 cutaneous melanoma 6 cutaneous squamous cell carcinoma 4 cutaneous squamous cell carcinoma cscc 5 cystectomy 3 cystic fibrosis 11 cystic fibrosis cf 7 cytomegalovirus infections 5
H
haematological malignancy 3 hcc 3 hcc hepatocellular carcinoma 4 head and neck cancer 32 head and neck neoplasms 4 head and neck squamous cell carcinoma 28 head and neck squamous cell carcinoma hnscc 3 head neck cancer 8 headache 5 headache disorders 3 health adult subjects 3 health behavior 6 health literacy 4 health related behavior 3 healthy 75 healthy adult 5 healthy adult participants 8 healthy adults 5 healthy aging 6 healthy controls 4 healthy participants 19 healthy subjects 6 healthy volunteer 12 healthy volunteers 29 hearing loss 10 hearing loss sensorineural 5 heart block 3 heart diseases 7 heart failure 81 heart failure with preserved ejection fraction 9 heart failure with reduced ejection fraction 11 heart transplantation 4 heart valve diseases 4 heat stress 3 helicobacter pylori infection 4 hematologic cancer 4 hematologic malignancies 4 hematologic malignancy 9 hematopoietic and lymphatic system neoplasm 9 hematopoietic and lymphoid cell neoplasm 3 hematopoietic and lymphoid system neoplasm 4 hematopoietic stem cell transplantation 3 hemiparesis 4 hemiplegia 6 hemodialysis 4 hemodialysis access failure 3 hemodynamic instability 3 hemophilia 3 hemophilia a 6 hemophilia b 4 hemorrhagic stroke 3 hemostasis 3 hepatic impairment 3 hepatic steatosis 3 hepatocellular carcinoma 33 hepatocellular carcinoma hcc 19 hepatocellular carcinoma non resectable 4 her2 breast cancer 5 her2 negative breast cancer 9 her2 negative breast carcinoma 3 her2 positive breast cancer 11 her2 positive metastatic breast cancer 4 hereditary spastic paraplegia 7 herpes zoster 3 herpes zoster hz 3 hidradenitis suppurativa hs 3 high grade b cell lymphoma 5 high grade glioma 6 high grade gliomas 5 high risk acute myeloid leukemia 3 high risk localized prostate cancer 3 high risk neuroblastoma 3 hip arthropathy 4 hip fracture 3 hip fractures 4 hip osteoarthritis 9 hirschsprung disease 3 hiv 38 hiv 1 infection 5 hiv aids 3 hiv human immunodeficiency virus 3 hiv infections 21 hiv prevention 6 hnscc 5 hodgkin lymphoma 9 hormone receptor negative breast carcinoma 3 hormone receptor positive breast cancer 7 hormone receptor positive breast carcinoma 3 hospital acquired bacterial pneumonia habp 3 hpv 4 hr her2 breast cancer 4 human immunodeficiency virus 3 human papilloma virus 3 huntington disease 6 hydrocephalus 3 hyperglycemia 4 hyperlipidemia 3 hyperlipidemias 3 hypertension 55 hypertension htn 5 hypertension pregnancy induced 3 hypertensive disorder of pregnancy 6 hyperthermia 4 hypertrophic cardiomyopathy hcm 3 hypofractionated radiotherapy 3 hypoglycemia 3 hypopharyngeal squamous cell carcinoma 3 hypotension 6 hypoxemia 3 hypoxemic acute respiratory failure 4 hypoxia 4
L
labor pain 3 lacunar stroke 3 language development 3 laparoscopic cholecystectomy 4 laparoscopic surgery 4 large b cell lymphoma 7 large vessel occlusion 3 late life depression lld 3 leiomyosarcoma 4 leptomeningeal disease 3 leptomeningeal metastasis 4 leukemia 10 leukemia myeloid acute 4 lewy body disease 3 lifestyle modification 5 limited stage small cell lung cancer ls sclc 4 lipedema 4 lipoma 4 liposomal bupivacaine 3 liver cancer 11 liver cancer adult 4 liver cirrhosis 10 liver diseases 5 liver failure 3 liver fibrosis 6 liver metastases 9 liver metastasis 3 liver metastasis colon cancer 3 liver neoplasms 3 liver transplant 5 liver transplant complications 4 liver transplantation 6 locally advanced 3 locally advanced breast cancer 3 locally advanced cervical cancer 3 locally advanced gastric cancer 3 locally advanced head and neck squamous cell carcinoma 3 locally advanced or metastatic solid tumors 4 locally advanced pancreatic adenocarcinoma 3 locally advanced rectal adenocarcinoma 3 long covid 8 low anterior resection syndrome 4 low back pain 15 lumbar spinal stenosis 5 lung adenocarcinoma 6 lung cancer 59 lung cancer diagnosis 6 lung cancer non small cell 4 lung cancer nsclc 6 lung cancer screening 5 lung cancers 3 lung carcinoma 5 lung diseases 7 lung neoplasms 7 lung transplant 4 lupus erythematosus systemic 4 lupus nephritis 9 lupus nephritis ln 7 lyme disease 3 lymph node metastases 3 lymphedema 7 lymphoma 31 lymphoma non hodgkin 7 lymphoproliferative disorder 3
M
macular degeneration 4 magnesium 3 magnetic resonance imaging 6 major depression 4 major depressive disorder 21 major depressive disorder mdd 15 malaria 4 malignant female reproductive system neoplasm 4 malignant melanoma 7 malignant neoplasm 9 malignant solid neoplasm 14 malnutrition 3 mantle cell lymphoma 10 mantle cell lymphoma mcl 7 marginal zone lymphoma 7 masld 3 masld metabolic dysfunction associated steatotic liver disease 3 mcrpc 4 mdd 4 mds 4 mds myelodysplastic syndrome 3 mechanical ventilation 7 mechanical ventilation complication 3 medication adherence 4 melanoma 20 melanoma skin cancer 8 membranous nephropathy 3 memory 3 memory disorders 3 meningioma 7 meningitis 3 menopause 7 menstrual cycle 3 mental disorder 4 mental disorders 3 mental health 12 mental health issue 4 mesothelioma 6 metabolic acidosis 3 metabolic disease 5 metabolic diseases 3 metabolic syndrome 19 metabolic syndrome mets 4 metastasis 5 metastatic breast cancer 25 metastatic cancer 14 metastatic castration resistant prostate cancer 14 metastatic castration resistant prostate cancer mcrpc 6 metastatic clear cell renal cell carcinoma 4 metastatic colorectal cancer 5 metastatic colorectal cancer crc 4 metastatic colorectal carcinoma 3 metastatic gastric cancer 5 metastatic hepatocellular carcinoma 3 metastatic hormone sensitive prostate cancer mhspc 3 metastatic lung non small cell carcinoma 3 metastatic malignant solid neoplasm 7 metastatic melanoma 4 metastatic non small cell lung cancer 5 metastatic ovarian carcinoma 3 metastatic pancreatic cancer 3 metastatic prostate cancer 6 metastatic solid tumor 5 metastatic urothelial carcinoma 5 microbial colonization 6 migraine 12 mild autonomous cortisol secretion macs 3 mild cognitive impairment 28 mild cognitive impairment mci 11 mild traumatic brain injury 10 mitochondrial diseases 3 mitral regurgitation 7 mitral valve disease 3 moderate to severe plaque psoriasis 3 monoclonal gammopathy of undetermined significance 4 mood disorders 5 morbid obesity 3 mortality 3 mother infant interaction 3 motivation 4 motor neuron disease 3 movement disorders 3 moyamoya disease 4 mri 5 multimorbidity 3 multiple endocrine neoplasia type 1 3 multiple myeloma 57 multiple myeloma in relapse 3 multiple myeloma mm 4 multiple sclerosis 41 multiple sclerosis relapsing remitting 3 multiple system atrophy 7 muscle invasive bladder carcinoma 5 muscular atrophy spinal 3 muscular dystrophies 3 musculoskeletal diseases 4 musculoskeletal pain 7 mutation 3 myasthenia gravis 4 mycosis fungoides 3 myelodysplastic syndrome 10 myelodysplastic syndromes 18 myelofibrosis mf 3 myeloma multiple 3 myeloproliferative neoplasm 5 myocardial infarction 11 myocardial infarction mi 5 myocarditis 4 myopia 17
P
pacemaker 3 pain 24 pain acute 8 pain chronic 10 pain management 15 pain postoperative 8 palliative care 4 pancreas adenocarcinoma 3 pancreas cancer 18 pancreatectomy 3 pancreatic adenocarcinoma 11 pancreatic cancer 43 pancreatic diseases 4 pancreatic ductal adenocarcinoma 17 pancreatic ductal adenocarcinoma pdac 9 pancreatic neoplasms 8 pancreatic neuroendocrine tumor 3 pancreatitis 7 pancreatitis acute 4 parenting 4 parkinson disease 50 parkinson disease disorder 10 parkinson disease pd 9 parkinson s disease 21 parkinson s disease pd 7 parkinsons disease pd 4 paroxysmal nocturnal hemoglobinuria pnh 5 patent foramen ovale 5 patient education 4 pdac pancreatic ductal adenocarcinoma 3 pediatric 3 pediatric all 6 pediatric cancer 13 pediatric obesity 4 pelvic organ prolapse 3 pelvic organ prolapse pop 3 pelvic pain 4 percutaneous coronary intervention 8 percutaneous coronary intervention pci 3 peri implant mucositis 3 peri implantitis 4 perinatal depression 3 periodontal disease 7 periodontal diseases 7 periodontal pocket 3 periodontitis 13 perioperative 3 perioperative care 3 peripheral arterial disease 15 peripheral artery disease 4 peripheral t cell lymphoma 7 peripheral vascular diseases 3 peritoneal carcinomatosis 4 persistent atrial fibrillation 4 pet ct 3 phantom limb pain 3 pharmacokinetics 3 photophobia 4 physical activity 15 physical fitness 3 physical inactivity 6 pitt hopkins syndrome 3 plantar fasciitis 4 plaque psoriasis 5 plasma cell leukemia 3 platinum resistant ovarian cancer 3 pneumonia 9 point of care ultrasound 3 polycystic ovary syndrome 5 portal hypertension 9 positron emission tomography 5 post acute covid 19 syndrome 4 post operative analgesia 3 post operative pain 10 post partum hemorrhage 3 post traumatic stress disorder 11 post traumatic stress disorder ptsd 6 postmenopausal 3 postoperative analgesia 3 postoperative care 3 postoperative complications 15 postoperative delirium 3 postoperative nausea and vomiting 3 postoperative pain 26 postoperative pain acute 4 postoperative pain management 8 postoperative pulmonary complications ppcs 4 postoperative recovery 3 postpartum depression ppd 4 posttraumatic stress disorder 4 posttraumatic stress disorder ptsd 6 postural tachycardia syndrome 3 pre diabetes 3 pre eclampsia 5 pre exposure prophylaxis 3 prediabetes 7 preeclampsia 12 preeclampsia pe 5 preeclampsia pe risk 3 pregnancy 29 pregnancy complications 14 pregnancy high risk 5 pregnancy related 10 premature birth 6 pressure ulcer 4 preterm 5 preterm birth 5 primary aldosteronism 6 primary biliary cholangitis 5 primary central nervous system lymphoma 4 primary dysmenorrhea 3 primary liver cancer 3 primary mediastinal large b cell lymphoma 3 primary membranous nephropathy 5 primary peritoneal cancer 3 primary peritoneal carcinoma 6 primary sclerosing cholangitis 3 prognosis 3 progressive pulmonary fibrosis 3 progressive supranuclear palsy psp 3 prostate adenocarcinoma 4 prostate cancer 94 prostate cancer adenocarcinoma 9 prostate cancer diagnosis 3 prostate cancer metastatic 3 prostate cancer patients 4 prostate cancer post prostatectomy 3 prostate carcinoma 3 proteinuria 3 pseudomyxoma peritonei 3 psoriasis 13 psoriasis pso 3 psoriatic arthritis 9 psychiatric disorder 6 psychological distress 11 psychological stress 4 psychological well being 5 psychosis 6 psychotic disorder 3 ptsd 12 ptsd post traumatic stress disorder 5 pulmonary arterial hypertension 6 pulmonary arterial hypertension pah 4 pulmonary artery hypertension 3 pulmonary embolism 6 pulmonary embolism and thrombosis 3 pulmonary fibrosis 4 pulmonary hypertension 25
S
safety 3 safety issues 3 salivary gland cancer 3 salt sensitivity of blood pressure 3 sarcoidosis 4 sarcoma 16 sarcoma soft tissue 4 sarcopenia 16 sars cov 2 infection 5 sbrt 3 scar 4 schizoaffective disorder 8 schizophrenia 31 schizophrenia and related disorders 4 schizophrenia disorder 3 schizophrenia disorders 4 scleroderma 5 scleroderma systemic 4 scoliosis idiopathic 3 secondary central nervous system lymphoma 3 sedentary behavior 4 seizures 5 self efficacy 7 sentinel lymph node 5 sepsis 34 sepsis severe 3 septic shock 13 severe aortic stenosis 3 severe asthma 5 sexual violence 3 shoulder pain 7 sickle cell disease 25 single ventricle 3 skin cancer 11 sleep 21 sleep apnea 8 sleep deprivation 3 sleep disorder 4 sleep disordered breathing sdb 4 sleep disturbance 9 sleep disturbances 4 sleep hygiene 4 sleep quality 5 sleeve gastrectomy 4 small cell lung cancer 12 small cell lung cancer extensive stage 3 small cell lung cancer sclc 5 small cell lung carcinoma 5 small lymphocytic lymphoma 9 small lymphocytic lymphoma sll 3 smoking 9 smoking behaviors 3 smoking cessation 23 smoking cigarette 5 smoking reduction 3 social anxiety disorder 3 social determinants of health 3 social determinants of health sdoh 3 social skills 3 soft tissue sarcoma 17 solid carcinoma 4 solid tumor 37 solid tumor adult 14 solid tumor malignancies 4 solid tumors 22 speech 3 speech sound disorder 3 spina bifida 4 spinal anesthesia 3 spinal cord diseases 3 spinal cord injuries 29 spinal cord injuries sci 12 spinal cord injury 14 spinal fusion 4 spinal stenosis 5 spine disease 3 spine metastases 4 splenectomy 3 spondylolisthesis 7 squamous cell carcinoma 6 stage iii colorectal cancer 3 stage iii hepatocellular carcinoma ajcc v8 3 stage iii ovarian cancer ajcc v8 3 stage iii prostate cancer ajcc v8 3 stage iii renal cell cancer ajcc v8 4 stage iiib prostate cancer ajcc v8 3 stage iiic prostate cancer ajcc v8 3 stage iv hepatocellular carcinoma ajcc v8 3 stage iv lung cancer ajcc v8 5 stage iv ovarian cancer ajcc v8 3 stage iv renal cell cancer ajcc v8 5 stage iva prostate cancer ajcc v8 3 stage ivb prostate cancer ajcc v8 6 status epilepticus 3 stemi 4 stomach cancer 4 stomach neoplasms 7 stress 27 stress urinary incontinence 5 stroke 108 stroke acute 11 stroke acute ischemic 3 stroke ischemic 21 stroke sequelae 3 subarachnoid hemorrhage 6 subarachnoid hemorrhage aneurysmal 3 subjective cognitive decline 5 subjective cognitive decline scd 7 substance related disorders 4 substance use 7 substance use disorder sud 4 substance use disorders 10 suicidal ideation 14 suicide 13 suicide attempted 6 suicide prevention 6 surgery 30 surgery complications 4 surgical site infection 8 survivorship 5 syncope 4 syphilis 3 systemic lupus erythematosus 15 systemic lupus erythematosus sle 8 systemic sclerosis 5 systemic sclerosis ssc 8

Browse by Disease Category

Top conditions grouped by therapeutic area

🔬 Oncology 12 shown
❤️ Cardiology 12 shown
🧠 Neurology 12 shown
💬 Mental Health 12 shown
🩺 Metabolic & Diabetes 12 shown
🫁 Pulmonology 12 shown
🦠 Gastroenterology 12 shown
🦴 Rheumatology 12 shown
🦠 Infectious Disease 12 shown
🫘 Nephrology 12 shown
🧬 Rare Diseases 12 shown

Trial counts reflect data indexed from ClinicalTrials.gov and are updated daily. The A–Z directory shows conditions with 3 or more active trials. Each condition page shows currently recruiting and active studies.

ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: November 2026  ·  Data Methodology