Related by context. Frequent words. (Click for all words.) 71 active comparator 71 randomized controlled clinical trials 69 randomized controlled trials 68 double blinded placebo 67 randomized trials 67 placebo controlled trials 67 RCTs 67 placebo controlled studies 66 prospective randomized controlled 65 placebo controlled clinical 65 randomized clinical trials 65 multicenter clinical 65 prospective observational 65 randomized 65 chemoradiotherapy 64 tipranavir 64 secondary efficacy endpoints 64 dose regimens 64 glatiramer acetate 64 multicentre 64 neoadjuvant 64 peginterferon alfa 2b 64 tocilizumab 64 multicenter randomized 64 randomized clinical 63 randomisation 63 adalimumab 63 meta analyzes 63 placebo controlled randomized 63 blinded placebo controlled 63 warfarin therapy 63 randomized controlled clinical 63 candesartan 63 COPAXONE R 63 randomized controlled 62 randomized placebo controlled 62 retrospective cohort study 62 randomized controlled trial 62 prospective cohort 62 prospective randomized 62 antiplatelet agents 62 randomized Phase III 62 composite endpoint 62 peginterferon alfa 2a 62 bronchial thermoplasty 61 SCH # 61 neoadjuvant chemotherapy 61 alvimopan 61 multicenter study 61 nab paclitaxel 61 serum phosphorus 61 dabigatran etexilate 61 Phase 2b study 61 Secondary endpoints 61 Phase III randomized 61 coronary revascularization 61 virologic response 61 citalopram 61 subgroup analyzes 61 lipid lowering drugs 61 stable angina 61 dose cohorts 61 virologic failure 61 hypertensive patients 61 noninferiority 61 enalapril 61 chemoradiation 61 observational studies 61 meta analysis 60 rosuvastatin 60 TORISEL 60 metastatic renal cell carcinoma 60 bosentan 60 azacitidine 60 antihypertensive drugs 60 carotid artery stenting 60 multicenter randomized double 60 darapladib 60 achieved statistical significance 60 diabetic neuropathic pain 60 ziprasidone 60 Combination therapy 60 phase IIa 60 blind randomized 60 vasomotor symptoms 60 mg QD 60 pazopanib 60 Pivotal Trial 60 temsirolimus 60 TYKERB 60 Phase 1b trial 60 unfractionated heparin 60 NOXAFIL 60 darunavir 60 lamotrigine 59 DMARD 59 mg kg dose 59 sunitinib 59 entecavir 59 virologic 59 peg IFN