Cancer remains one of the leading causes of mortality worldwide, the second to cardiovascular diseases only. Although the problem was recognized long time ago, and billions of dollars were invested into cancer research and drug development by both governments and pharmaceutical companies worldwide, there is a clear lack of significant progress in treatment of this disease. What we are doing wrong? Why cancer still remains dangerous and often untreatable?
No simple answers to these questions exist. There are many factors contributing to the failure of modern medicine to deliver the cure for this common disease.

Cancer is a very complex problem
Post-genomic era brought a remarkable advance in our understanding of cancer on molecular and cellular level. The picture that emerged is very complex.
This means that universal treatment suitable for everyone does not exist. The term “cancer” refers to the huge number of conditions of very different nature that require different drugs to achieve curative effect. All these drugs has to be discovered and development.
Drug discovery and development is very expensive
And here is where the second part of the problem comes. Drug discovery and development is a long and tedious process. It is also very expensive: each successful drug that reaches the patients costs well above US$1 billionby the time it is approved by FDA or any other regulatory body.
The question of profits is very important in modern pharmaceutical business.Overwhelming majority of drugs is developed by large multinational corporations. They do deliver good medicines, but like any other companies working in the market economy they have to bring profits to the people who invested into them. Keeping shareholders happy ensures that shareholders invest money needed for work. The structure of business puts incentives on making the drugs that are more likely to bring profits in a relatively short period of time. It is also better to go for safer option and develop a drug with well confirmed proof-of-principle rather than work (and spend money) on the innovative project with unpredictable outcome.
Unfortunately, academic research science is chronically underfunded and often relies on charitable donations. Research funding is an easy target for government spending cuts, as has been clearly seen during the last economic crisis.
What Can Be Done To Improve The Cancer Statistics?
Improved funding of academic research would certainly help to see more bright ideas in the area of cancer therapy. This is clear for everyone, but everyone also understands that funding is not everything and there are other issues that have to be addressed.

Safety of drugs and regulatory burden
Development of new drugs not only requires lots of money, but also takes lots of time. Clinical trials can take many years. This ensures that every new drug is thoroughly tested and safe to use in the target group of patients. However, many researchers question the wisdom of excessive regulations in regards to clinical trials. Absolutely safe drugs do not exist in nature, and it is reasonable to ask if additional regulations on top of the existing ones make new medicines any safer. After all, excessive testing means higher cost of development, which will be eventually passed on to the customers in the form of expensive drugs. Regulatory requirements create bureaucratic burden and slow down the whole process. Additional regulations are introduced every year. Unfortunately, more regulations do not necessarily mean better drugs. The calls to introduce better regulations as opposed to more regulations can be heard often in the medical circles.
Some newly developed anticancer drugs are so expensive that they are simply unaffordable to the patients. Moreover, since the benefits are limited, insurance companies and national health services often refuse to cover their cost. The excessive cost of these drugs directly relates to the high cost of their development and the financial pressure of Wall Street to bring the profits.
Better early diagnostic of cancer can bring significant benefits
Better early diagnostic methods can bring real improvements to the survival of cancer patients. Cancer mortality is much lower for those tumor types where such methods are available. Unfortunately, for many common cancers such as lung cancer, stomach cancer and colorectal cancer no reliable early diagnostic techniques are currently developed. Finding of easily identifiable molecular markers and introduction of screening programs can have major impact on cancer statistics in these cases.
Personalized medicine and genetic screening allows better choice of treatment
The level of response usually correlates with particular mutations in cancer. To prescribe a correct treatment, clinicians need to know the genetic profile of each particular patient. Without genetic screening, drugs are assigned on the basis of doctor’s opinion with certain degree of guessing. If drug doesn’t work, a suitable alternative is used instead. No need to mention that such approach is not only dangerous for patient’s health, but also wasteful in terms of finances.
We have to address a lot of issues to achieve better level of cancer treatment. Some of these issues are purely scientific, but many others require action from governments and regulatory bodies. Personalized approach to cancer patients and general cancer screening programs can bring significant benefits very quickly once they are implemented.
- Adams, D.J. (2012) The Valley of Death in anticancer drug development: a reassessment. Trends in Pharmacological Sciences 33, 173-180
- Hait, WN (2010) Anticancer drug development: the grand challenges. Nat. Rev. Drug Discov. 9, 253-254
- Leaf, C. (2004) Why we’re losing the war on cancer and how to win it. Fortune 149, 76
- Kola, I and Landis, J. (2004) Can the pharmaceutical industry reduce attrition rates? Nat. Rev. Drug Discov. 3, 711-715
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- Photo courtesy of Phillip by Flickr : www.flickr.com/photos/tyfn/8588797706
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