trial

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trial

 [tri´al, trīl]
a test or experiment.
clinical trial an experiment performed on human beings in order to evaluate the comparative efficacy of two or more therapies. See also single blind, double blind, and triple blind.

tri·al

(trī'ăl),
A test or experiment, usually conducted under specific conditions.

trial

/tri·al/ (tri´al) (trīl) a test or experiment.
clinical trial  an experiment performed on human beings in order to evaluate the comparative efficacy of two or more therapies.

trial

[trī′əl]
a process of quality testing.

trial

Any formal study of a method or therapy. See AAASPS, ABC, ABCD, ACADEMIC, ACAS, ACCT, ACES, ACIP, ACME, ACRE, ACT, ACTION, ACUTE, ADAM, ADEPT, ADMIRAL, ADMIT, ADOPT, ADOPT-A, AEGIS, AFASAK, AFCAPS, AFFIRM, AFIB, AGENT, AGIS, AIMS, AIRE, AIREX, ALE\RT, ALIVE, ALLHAT, AMISTAD, APASS, APRES, APRICOT, ARCH, AREDS, ARMS, ARREST, ARTISTIC, ASAP, ASCENT, ASCOT, ASIST, ASPECT, ASSET, ASSENT, ASSIST, ASTRID, ASTRONAUT, ATACS, ATLANTIC, ATLANTIS, ATLAS, AT LAST, ATS, ATTRACT, AVERT, AVID, BAATAF, BAATAF, BAMI, BARI, BASIS, BBB, BEAT, Before-after trial, BEIR, BENESTENT, BERT, BESMART, BEST, BETTER, BHAT, BLAT, BLOSS, BOAT, BRAINS, BRAVO, BRITE, CABADAS, CABG Patch, CABRI, CADILLAC, CAESAR AIDS, CAFA, CALM-PD, CALYPSO, CAMELOT, CAMEO, CAMIAT, CANDLE, CAPARES, CAPE, CAPPP, CAPRI, CAPRIE, CAPS, CAPTEN, CAPTIN, CARDIA, CARE, CARET, CARISA, CARPORT, CART, CASCADE, CASCADE, CASES, CASH, CASS, CAST, CAST-2, CASTLE, CAT, CATS, CAVEAT, CAVEAT-1, CAVEAT-2, CBT-CD, CCCCCC, CEDARS, CHAMP, CHAOS, CHARM, CHEESE, CHS, CIBIS, CIGTS, CLAS, CLASP, CLASS, CLEERE, Clinical trial, COBALT, COMPANION, COMS, CONSENSUS, CONSENSUS-2, CONVINCE, COPERNICUS, CORE, COURAGE, COURT, CRASH, CREDO, CREST, Crossover trial, CRUISE, CURE, DAIS, DASH, DASH2, DAVIT, DAVIT II, DEBATE, DEBATE II, DECODE, DEFINITE, DESTINI-CFR, Diabetes Control & Complications, Diagnostic, DIADS, DIAMOND-CHF, DIG, DIGAMI, DINAMIT, DIRECT, DISC, Dose control, DouBLE, DPT-1, DRASTIC, DYSBOT, EAFT, EARS, EAST, EBMT, ECASS, ECCO 2000, EDGE, ELLDOPA, ELITE, EMERAS, EMIAT, EMIP, ENABLE, ENCORE, ENRICHD, ENTIRE, EPHESUS, EPIC, EPICORE, EPILOG, EPISTENT, Equivalence trial, ERA, ERACI, ERASE, ESPRIM, ESPRIT, ESPS2, ESSENCE, ESVEM, EXCEL, EXCITE, FACET, FASTER, FATS, FIRST, FIT, Five-City project, FRESCO, FRIC, FRISC, GABI, GART, GESICA, GISG, GISSI-1, GISSI-2, GISSI-3, GREAT, GUSTO-I, GUSTO II, GUSTO-III, GUSTO-SPEED, GUSTO V, Half-side, HALT-C, HART, HASI, HeADDFIRST, EART, HEP, HERO, HERS, HIPS, HIT, HOPE, HOT, HPYLORI, IMAGE, IMAGES, IMPACT II, IMPRESS, InDDEx, INHIBIT, INJECT, INOS, INSIGHT, INTACT, INTERSALT, InTIME, INTRO-AMI, IRAS, ISAM, ISIS-2, ISIS-3, ISIS-4, IVAT, LACI, LAMP, Large simple, LARS, LATE, LIDS, LIFE, LIFE STUDY, LIMIT-2, LIPID, LONG WRIST, MAAS, MADIT, MAGIC, MARCATOR, MARISA, MDC, MDPIT, MEDENOX, MERCATOR, MERIT-HF, MICRO-HOPE, MIDAS, MILIS, MIRA, MIRACL, MIRACLE, MIRACLE ICD, MIRAGE, MITI-1, MITI-2, MONARCS, MORE, MOXCON, MRC, MR IMAGES, MRFIT, MSMI, MUCOSA, MUST, MUST EECP, MUSST, MUSTIC, MUSTT, MUTT, N of 1, NASCET, NASCIS, NETT, NICE, NINDS, NIÑOS, Nonrandomized, NORDIL, OASIS, OASIS 2, OAT, OBJECT, OCTAVE, OHTS, OMNIUM, ONTARGET, Open-label, OPERA, OPTIMAAL, OPTIME-CHF, OPUS, ORBIT, OVERTURE, PAC-A-TACH, PACT, PAIR, Parallel groups, PAMI-1, PAMI-2, PARADIGM, PARAGON, PARIS, PARK, PCDD, PEACE, PEPI, PETHEMA, PHADE, PHAROS, PIMI, PIOPED, PIVOT, PLAC I, PLAC II, PLESS, POEM, POSCH, PRAISE, PRECEDENT, PREPIC, PRESTO, PREVENT, PRIMI, PRISM-PLUS, PROACT, PROBE evaluation, PROMISE, PROSPER, PROVE IT, PROVED, PROWESS, PURSUIT, Putative placebo, QUIET, QoLITY, RADIANCE, RADIUS, RALES, Randomized clinical, RAPID, RAPPORT, RAVEL, REACH, REACT, ReALIZe, RECIFE, REFLECT, REGRESS, REMATCH, RENAAL, RENAISSANCE, RESOLVD, RESTORE, RHYTHMS, RID--HD, RISC, RITA, RUTH, SADHAT, SAFE, SARECCO, SAVE, SAVED, SCD/HCT, Scopes monkey, SCRIP, SCRIPPS, SEAL, SECURE, Seeding, SENIC, SEROCO, SHARP, SHEP, SHOCK, SIAM, SIESTA, SILCAAT, SILENT, SMART, (S)MASH, SMILE, SOLVD-prevention, SOLVD-treatment, SPAF, SPAF-2, SPARCL, SPEED, SPICE, SPINAF, SPORT, SPRINT, SPS3, SSITT, STAR, START, STARS, STICH, STILE, STOP-Hypertension, STOPIT, STRESS, STRETCH, Superiority, SUPPORT, SWIFT, SWING, SWORD, SYMPHONY, Syst-Eur, TAIM, TAIST, TAMI-1, TAMI-5, TAMI-7, TAMI-9, TASS, TAUSA, TEAM-2, TEIS, TeqCES, TexCAPS, TIBBS, TIMI-2, TIMI-3, TIMI-4, TIMI-5, TIMI-7, TIMI-9, TOHP-1, TOMHS, TOPAS, TRACE, TRANSCEND, TREAT, TROPHY, TURBO, UK-HEART, UKPDS, UNASEM, V-HeFT-2, VA-HIT, VAL-HEFT, VALIANT, VALUE, VANILA, VANQWISH, VAST, VERT, VIGOR, Viral, VIRADAPT, VISP, VITATOPS, VMAC, WARIS, WARSS, WASID, WATCH, WIHS, WISE, WHIP, WHIMS, WINS, WOSCOPS, WRIST, XISHF, ZEUS.

tri·al

(trī'ăl)
A test or experiment, usually conducted under specific conditions.

trial,

n an examination before a competent tribunal of the facts or law in issue in a cause of action for the purpose of determining the issue.

trial

experiment; refers usually to the trying out of a substance or a material in order to determine its effect. The trial may be a blind experiment, a clinical trial, a double blind trial or a pilot trial.

clinical trial, therapeutic trial
a test which uses patients as test objects for a drug regimen, a physical procedure, the results being compared with those in patients receiving a placebo or an alternative treatment.
References in periodicals archive ?
As I have indicated earlier, it currently serves as an appropriate registry for interventional IVD clinical trials and as a voluntary registry for observational trials.
The authors suggest this may partly explain the ambiguities in the results between observational trials and randomised trials.
The other authors concluded: 'The popular belief that only RCT produces trustworthy results and that all observational trials are misleading does a disservice to patient care, and the education of health care professionals:
One of the critical design faults of the WHI is to have accepted to study a different population than in the observational trials in order to avoid dropouts and to have sufficient power to evaluate clinical events rather than progress of disease.
Although several previous observational trials had suggested a link between both unopposed estrogen and combined estrogen/progestin and improved glucose tolerance, only one other randomized placebo-controlled trial had evaluated the association before HERS.
Short-term data from clinical and observational trials of HAART show that adherence and success rates of regimens are higher in clinical trials.
The study, an analysis of 12 observational trials, says there is a 40 per cent increase in the risk of HIV infection in women using Depo-Provera compared to women using a non-hormonal contraceptive and those not practicing brith control.
Data extracted from the unique cohorts were from prospective, observational trials, enlisting a total of 2,336 participants.
Phase IV activities, including observational trials or "safety registries" that gather data on the use and effectiveness of medications in the real world are expected to be particularly impacted by new regulations, according to the survey.
In these recent trials, it may simply be that the clues we got from the epidemiology and observational trials were not indicative of a strong effect.

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