TRAP: Traffic Related Air Pollution Linked to Millions of Pediatric Asthma Cases Worldwide

MedicalResearch.com Interview with:
Ploy Pattanun Achakulwisut, PhD
Postdoctoral Scientist in Climate change, Air pollution, and Public Health
Milken Institute School of Public Health (Anenberg Group
The George Washington University, D.C 

MedicalResearch.com: What is the background for this study?

Response: Dozens of epidemiological studies have found positive and generally statistically significant associations between long-term exposure to traffic-related air pollution (TRAP) and asthma development in children. The evidence is most robust for nitrogen dioxide (NO2), a major component of and commonly used surrogate for the complex TRAP mixture. Recent reviews conducted by the US Environmental Protection Agency and Health Canada concluded that there is “likely a causal relationship” between long-term NO2 exposure and pediatric asthma development.

Using NO2 as a proxy for TRAP, our study provides the first global estimate of the number of new asthma cases among children that are attributable to traffic pollution, using fine spatial-scale global datasets that can resolve within-city and near-roadway NO2 exposures.

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How Much Do Clinical Trials For New Medications Really Cost?

MedicalResearch.com Interview with:

Thomas J Moore Senior Scientist Institute for Safe Medication Practices Lecturer, Department of Epidemiology and Biostatistics The George Washington University Milken Institute of Public Health Alexandria, VA 22314

Thomas J Moore

Thomas J Moore AB
Senior Scientist Institute for Safe Medication Practices
Lecturer, Department of Epidemiology and Biostatistics
The George Washington University
Milken Institute of Public Health
Alexandria, VA 22314

MedicalResearch.com: What is the background for this study? What are the main findings?

  • The study provides realistic cost estimates of pivotal clinical trials that establish drug benefits to support FDA approval of 59 new drugs released for marketing in 2015-2016.
  • The median estimated cost was just $19 million, with half of the 138 trials studied clustered between $12 million and $33 million.
  • The highest cost trials–with estimates up to $345 million–were for new drugs that were similar to drugs already available and already proven in treating serious illnesses. 

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