Related by context. Frequent words. (Click for all words.) 81 prospective randomized 80 randomized controlled 79 randomized placebo controlled 78 randomized clinical 78 placebo controlled 75 multicenter study 75 randomized double 74 randomized 73 blind randomized placebo 73 blind randomized 72 double blind placebo 71 randomized controlled trial 68 dose escalation study 68 blind placebo controlled 67 clinical trial 66 randomized clinical trials 66 Phase 2b study 65 randomized trials 65 Phase 2b trial 64 prospective cohort 64 randomized Phase 64 observational study 64 Phase IIb trial 63 Phase 2a clinical 63 randomized controlled trials 63 Phase 2b 63 Randomized 62 Phase Ib 62 Phase III clinical 62 Phase IIa 62 Phase IIb clinical 62 Phase IIb 61 Phase 2b clinical 61 Phase 1b 60 Phase IIa trial 60 meta analysis 60 Phase III 60 Phase IIa clinical 59 dose escalation 59 Phase III pivotal 59 Phase 2a 58 pivotal Phase 58 tolerability 58 pivotal Phase III 58 observational studies 57 ACTEMRA 57 non inferiority 56 clinical trials 56 longitudinal study 56 multiple ascending dose 55 acute ischemic stroke 55 unblinded 55 rosuvastatin 55 dosing regimens 55 sunitinib 55 pharmacodynamics 55 meta analyzes 54 Phase III clinical trials 54 Clinical Study 54 Phase III trials 54 Clinical Trial 54 denufosol 54 epidemiologic studies 53 TAXUS 53 pharmacokinetic 53 safety tolerability 53 adalimumab 53 CYPHER R Stent 53 postmenopausal women 53 Cohort 53 cohort 53 post hoc 53 evaluable patients 53 relapsing remitting multiple sclerosis 53 DSMB 52 tolerability profile 52 Health Initiative WHI 52 Efficacy 52 pharmacokinetics 52 longitudinal studies 52 mg BID 52 Phase II 52 eculizumab 51 primary endpoint 51 acute coronary syndrome 51 ticagrelor 51 RG# [001] 51 RCTs 51 ZYBRESTAT 51 hypertensive patients 51 lubiprostone 51 statin therapy 51 ACCORD 50 monotherapy 50 prospectively 50 everolimus 50 investigational oral 50 pharmacodynamic 50 secondary endpoint 50 n = 50 investigational drug