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RK-251: India's ROS-Activated Smart Cancer Drug Could Transform Chemotherapy

Target:UPSC GS-IIIMPSCSSC GATeachingPrelims HighMains MediumStatic GK Link
24 Aug 2026
~2 min
Source: Indian Express
Key Data:RK-251NBDHEXROSHPV types 16 and 1870% cervical cancerquadrivalent Gardasil vaccine
Bodies:IASSTIIT GuwahatiDepartment of Science & TechnologyMinistry of Science & TechnologyGaviWHOCDCSerum Institute of India
Practice MCQs from today's news ▸
What This Article Covers

1.RK-251 is a prodrug activated by high ROS levels in cancer cells, releasing the anticancer compound NBDHEX.

2.It aims to spare healthy cells, unlike conventional chemotherapy which causes side effects.

3.The drug is still experimental; further studies and human clinical trials are needed before patient use.

The Big Picture
Prelims · HighMains · Medium

RK-251 is a novel 'smart' cancer drug developed by Indian researchers that activates only inside cancer cells using high reactive oxygen species (ROS) levels, potentially reducing chemotherapy side effects. This marks a significant advancement in targeted cancer therapy and is a key topic for UPSC Science & Technology.

Exam Lens

Quick Exam Facts From News

Drug NameRK-251
Developed ByIASST (under DST) & IIT Guwahati
Activation MechanismHigh Reactive Oxygen Species (ROS) in cancer cells
Active Compound ReleasedNBDHEX
Current StatusExperimental (pre-clinical)
HPV Types Causing 70% Cervical Cancer16 and 18
India's First Indigenous qHPV VaccineCerevac (by Serum Institute of India)

1-Minute Revision

  • ›Drug Name: RK-251
  • ›Developed By: IASST (under DST) & IIT Guwahati
  • ›Target this Data: RK-251 (smart drug), NBDHEX (active compound), ROS (activation trigger)
  • ›Target this Nodal Body: Institute of Advanced Study in Science and Technology (IASST) under Department of Science & Technology; IIT Guwahati
  • ›Target this Legal Point: No specific legal point; but note HPV vaccination campaign launched on 28th February for 14-year-old girls

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Practice exam-style questions, track your score, and strengthen your recall.

Q1Static LinkageEasy

Which institute led the collaborative research that developed the smart cancer drug RK-251?

Q2Statement-basedHard

Consider the following statements regarding the smart cancer drug RK-251:

1. It is designed to activate primarily in cancer cells by exploiting higher levels of reactive oxygen species (ROS).

2. Upon activation, it releases an anticancer compound called NBDHEX that blocks target proteins used by cancer cells to survive.

3. The drug has successfully completed human clinical trials and is ready for patient use.

Which of the statements given above is/are correct?

Q3Data-centricMedium

According to the article, which two types of Human Papillomavirus (HPV) are responsible for causing about 70% of all cervical cancer cases globally?

Q4Application/ImpactMedium

What is the primary advantage of RK-251 over conventional chemotherapy as highlighted in the article?

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