Table 1.

Clinical features of subjects with spontaneous CLL regression

DiagnosisSexALC, ×109/LMedical history and comorbiditiesSecond malignancyNon-CLL-related drug history
YearAge, yPeakCurrentSiteDiagnosis
Complete spontaneous regression          
 CLL01 2005 58 9.0 3.2 Osteoarthritis, hypertension, hypercholesterolemia Prostate 2014 Atorvastatin, amlodipine (discontinued) 
 CLL02 2001 52 29.5 3.3 Hypertension, diabetes mellitus — — Metformin, ramipril, bendroflumethiazide, doxazosin, verapamil 
 CLL03 1996 66 32.7 1.5 Ischemic heart disease, peripheral vascular disease, diabetes mellitus, bronchiectasis (since 2010), hypertension — — Alfuzosin, aspirin, bendroflumethiazide, doxazosin, felodipine, lisinopril, simvastatin 
 CLL04 1994 58 10.5 1.7 Hypertension, benign prostatic hypertrophy, previous neurofibroma, osteoarthritis — — Finasteride, amlodipine, ibersartan 
 CLL05 2000 56 25.7 2.6 Previous rectal polyp (nonmalignant), diabetes mellitus — — Metformin 
 CLL06 1997 61 27.4 3.5 Diabetes mellitus, hypertension — — Metformin, furosemide 
 CLL07 2002 83 23.2 3.6 Hypothyroidism, diabetes mellitus, hypertension, benign prostatic hypertrophy Skin (SCC) 2010 Aspirin, linagliptin, tamsulosin, levothyroxine 
 CLL08 2002 72 6.7 2.4 Atrial fibrillation, diverticulosis, hypertension, hyperthyroidism, cholecystitis (in 2014) — — Bisoprolol 
 CLL09 1990 46 20.2 3.1 Hypertension, hypercholesterolemia — — Ramipril, simvastatin 
 CLL10 2008 70 13.8 3.2 Hypertension, abdominal aortic aneurysm, previous TIA, hypercholesterolemia — — Simvastatin, aspirin, lansoprazole, indapamide 
 CLL11 2007 75 14.5 1.2 Atrial fibrillation, gout Skin (SCC) 2013 Warfarin, bisoprolol, lansoprazole, febuxostat, donepezil 
Partial spontaneous regression          
 CLL12 2000 66 40.6 5.6 Previous iron deficiency anemia Skin (BCC) 2010 Omeprazole, temazepam, aspirin 
 CLL13 2013 73 161.0 11.3 Abdominal aortic aneurysm, COPD — — Tiotropium and salbutamol inhalers 
 CLL14 2002 73 44.5 8.5 Ischemic heart disease, osteoarthritis, hypertension, hypercholesterolemia — — Aspirin, ramipril, furosemide, ropinirole, levetiracetam 
 CLL15 2004 61 25.9 5.5 Diabetes mellitus, hypertension, hypercholesterolemia   Simvastatin, doxazosin 
 CLL16 2007 36 19.6 7.0 Eczema, mild depression — — Nil 
 CLL17 2009 81 42.4 16.9 Lewy body dementia, previous ischemic heart disease, depression — — Bumetanide, citalopram, donepezil 
Spontaneous regression occurring prior to a second malignancy          
 CLL18 2008 60 50.2 3.0 Diabetes mellitus, hypertension Prostate 2010 Aspirin, enalapril, metformin, pioglitazone, simvastatin, tamsulosin 
 CLL19 1987 55 78.0 7.7 Diverticulosis, COPD, gout Lung 2010 Carbocisteine, tamsulosin, tiotropium/fluticasone/ salmeterol inhalers 
Relapsed spontaneous regression          
CLL20 1993 38 52.4 20.0 Hypercholesterolemia, asthma, previous hip replacement — — Simvastatin, salbutamol/formoterol inhalers 
DiagnosisSexALC, ×109/LMedical history and comorbiditiesSecond malignancyNon-CLL-related drug history
YearAge, yPeakCurrentSiteDiagnosis
Complete spontaneous regression          
 CLL01 2005 58 9.0 3.2 Osteoarthritis, hypertension, hypercholesterolemia Prostate 2014 Atorvastatin, amlodipine (discontinued) 
 CLL02 2001 52 29.5 3.3 Hypertension, diabetes mellitus — — Metformin, ramipril, bendroflumethiazide, doxazosin, verapamil 
 CLL03 1996 66 32.7 1.5 Ischemic heart disease, peripheral vascular disease, diabetes mellitus, bronchiectasis (since 2010), hypertension — — Alfuzosin, aspirin, bendroflumethiazide, doxazosin, felodipine, lisinopril, simvastatin 
 CLL04 1994 58 10.5 1.7 Hypertension, benign prostatic hypertrophy, previous neurofibroma, osteoarthritis — — Finasteride, amlodipine, ibersartan 
 CLL05 2000 56 25.7 2.6 Previous rectal polyp (nonmalignant), diabetes mellitus — — Metformin 
 CLL06 1997 61 27.4 3.5 Diabetes mellitus, hypertension — — Metformin, furosemide 
 CLL07 2002 83 23.2 3.6 Hypothyroidism, diabetes mellitus, hypertension, benign prostatic hypertrophy Skin (SCC) 2010 Aspirin, linagliptin, tamsulosin, levothyroxine 
 CLL08 2002 72 6.7 2.4 Atrial fibrillation, diverticulosis, hypertension, hyperthyroidism, cholecystitis (in 2014) — — Bisoprolol 
 CLL09 1990 46 20.2 3.1 Hypertension, hypercholesterolemia — — Ramipril, simvastatin 
 CLL10 2008 70 13.8 3.2 Hypertension, abdominal aortic aneurysm, previous TIA, hypercholesterolemia — — Simvastatin, aspirin, lansoprazole, indapamide 
 CLL11 2007 75 14.5 1.2 Atrial fibrillation, gout Skin (SCC) 2013 Warfarin, bisoprolol, lansoprazole, febuxostat, donepezil 
Partial spontaneous regression          
 CLL12 2000 66 40.6 5.6 Previous iron deficiency anemia Skin (BCC) 2010 Omeprazole, temazepam, aspirin 
 CLL13 2013 73 161.0 11.3 Abdominal aortic aneurysm, COPD — — Tiotropium and salbutamol inhalers 
 CLL14 2002 73 44.5 8.5 Ischemic heart disease, osteoarthritis, hypertension, hypercholesterolemia — — Aspirin, ramipril, furosemide, ropinirole, levetiracetam 
 CLL15 2004 61 25.9 5.5 Diabetes mellitus, hypertension, hypercholesterolemia   Simvastatin, doxazosin 
 CLL16 2007 36 19.6 7.0 Eczema, mild depression — — Nil 
 CLL17 2009 81 42.4 16.9 Lewy body dementia, previous ischemic heart disease, depression — — Bumetanide, citalopram, donepezil 
Spontaneous regression occurring prior to a second malignancy          
 CLL18 2008 60 50.2 3.0 Diabetes mellitus, hypertension Prostate 2010 Aspirin, enalapril, metformin, pioglitazone, simvastatin, tamsulosin 
 CLL19 1987 55 78.0 7.7 Diverticulosis, COPD, gout Lung 2010 Carbocisteine, tamsulosin, tiotropium/fluticasone/ salmeterol inhalers 
Relapsed spontaneous regression          
CLL20 1993 38 52.4 20.0 Hypercholesterolemia, asthma, previous hip replacement — — Simvastatin, salbutamol/formoterol inhalers 

—, no known second malignancy; ALC, absolute lymphocyte count; BCC, basal cell carcinoma; COPD, chronic obstructive pulmonary disease; F, female; M, male; SCC, squamous cell carcinoma; TIA, transient ischemic attack.

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