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What is a phase IIa clinical trial?
A phase II clinical trial is the phase of testing to see whether or not a drug has any biological effect. The phase IIa trial is the phase in which it is determined what dosage of a drug should be given.
Why do ionic crystals conduct electric current in the liquid phase or when dissolved in water but do not conduct electric current in the solid phase?
because when the ions can move around freely, they can conduct electricity better
Why do ionic crystals conduct electric currents in the liquid phase or when dissolved in the water but do not conduct electric currents in the solid phase?
because when the ions can move around freely, they can conduct electricity better
Why do ionic crystals conduct electric current in liquid phase or when dissolved in water but do not conduct electric current in the solid phase?
because of the gravity or Magnetricity
Which phase of investigational drug clinical studies is usually performed on 5 -20 volunteer patients?
Phase 1
Which type of clinical trials is used the least?
Phase IV trial
What phase of clinical testing uses the fewest number of subjects and establishes the dose at which signs of toxicity appear?
Phase 1
What type of substance can conduct electricity in the liquid but not solid phase?
Most ionic solids cannot conduct electricity in the solid phase. They only do so in the liquid phase. While they are solid, the ions in the ionic solid are fixed in their lattice so cannot move to conduct electricity whereas in the liquid phase, the ions are free and mobile and can act as charge carriers for electricity.
What is the difference between phase 2 phase 2a and phase 2b clinical trials?
Phase 2a Clinical Trials are pilot studies done on a relatively smaller number of patients(100-300) in order to judge the efficacy and safety of the investigational drug. Whereas Phase 2b Clinical trials are Pivotal studies, a well established controlled trails done on a larger number of patients in order to judge the efficacy and safety of the investigational drug.
Why do ionic crystals conduct electric current in the solid phase liquid phase or when dissolved in water but do not conduct electric current in the solid plase?
Ionic crystals conduct electricity when dissolved in water or in the liquid phase because the ions are free to move and carry electrical charge. In the solid phase, the ions are locked in place and cannot move freely to conduct electricity. In contrast, metals conduct in the solid phase due to the mobility of free electrons within the metallic lattice.
Why do ionic crystals conduct electric current in the liquid phase but do not conduct electric current in the solid phase?
Because ionic crystals contain ions which are arranged compactely by electrovalent force.in solutioon they become free ions because the solvent overcome their attractions so,they conduct electric current
What phase of clinical testing is required by the FDA before drug approval and uses the greatest number of subjects?
C. phase 3 your welcome :)
