The classification of cancer clinical trials typically involves four distinct phases: Phase I, Phase II, Phase III, and Phase IV. The question asks to identify the option that does not fit this standard classification, likely due to an inaccurate description.
Understanding Cancer Trial Phases
Clinical trials for cancer drugs or devices are structured in sequential phases to evaluate safety and efficacy:
- Phase I Trials: Primarily assess the safety of a new investigational medicine or device in a small group of people, often the first human testing stage after animal studies.
- Phase II Trials: Focus on further evaluating the efficacy and safety profile in a larger group of patients. These trials explore short-term side effects.
- Phase IV Trials: These trials are conducted after a medicine or device has been approved and marketed. They gather additional information on the drug's efficacy, risks, benefits, and optimal use in a broader population.
Identifying the Exception: Phase III Description
The description provided for Phase III trials in Option C is inconsistent with standard clinical trial protocols:
- Option C Description: Uncontrolled trials after regulatory approvals of a drug or device efficacy.
- Standard Phase III: Typically involves large-scale, randomized, controlled studies conducted before regulatory approval. Their main goal is to definitively confirm the drug's efficacy compared to existing treatments and monitor side effects in a large patient group.
The description in Option C ("Uncontrolled trials after regulatory approvals") more closely resembles the characteristics of Phase IV trials, not Phase III. Standard Phase III trials are crucial for obtaining regulatory approval and are generally controlled and conducted prior to marketing.
Therefore, the incorrect description makes Option C the exception among the standard phases of cancer trials.
Similar Questions
- Total score for class IV (upper lower) as per Kuppu Swamy's scale is in one of the following ranges :
- Chancroid is caused by which of the following pathogenic agents ?
- Ehlers - Danlos syndrome illustrates a genetic defect of ?
- Galactosyl transferase is a marker associated with ?
- An infectious agent being present in an inanimate articles the skin surface, particularly on hands, is called :
- The mode followed in transmission of microfilaria through a female culex mosquito is :
- The form(s) available on Integrated Health Information Platform (IHIP) under integrated disease surveillance programme (IDSP) portal to enable data entry is/are :
- Which of the following vaccines, was used first time to immunize humans and included in Expanded Program on Immunization (EPI) :
- The first human disease to be conclusively proved to be caused by a microorganism as well as first disease against which effective vaccine has been developed :
- The mode followed in transmission of plague bacillus in the mouth of a rat flea is :
Important Questions from Miscellaneous
- Which of the following relationships is/are not true?
(A). Most probable velocity = $\sqrt{\frac{2RT}{M}}$
(B). PV = $\frac{3}{2}kT$
(C). Compressibility factor Z = $\frac{pV}{nRT}$
(D). Average kinetic energy of gas = $\frac{1}{2}kT$
Choose the correct answer from the options given below - Match List-I with List-II
List-I List-II Electronic Configuration First Ionisation energy (kJ mol$^{-1}$) (A). ns$^2$ (I). 2100 (B). ns$^2$np$^1$ (II). 1400 (C). ns$^2$np$^3$ (III). 800 (D). ns$^2$np$^6$ (IV). 900
Choose the correct answer from the options given below: - The shielding constant of a 2p electron (calculated using Slater's rules) is
- Match List-I with List-II
List-I List-II Spectroscopy Property (A). Raman (I). Polarizability (B). FTIR (II). Dipole Moment (C). UV-Visible (III). Absorbance (D). NMR (IV). Spin
Choose the correct answer from the options given below: - The structure of protein comprises of:
(A). Primary structure of protein is associated with amino acids
(B). Secondary structure of protein is associated to peptides
(C). Tertiary structure of protein is associated with polypeptide chains
(D). Quaternary structure of protein is associated with polypeptide chains
Choose the correct answer from the options given below:
