Short Communication
Rare diseases are not actually rare in India
B.K. Binukumar
CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
Corresponding Author: B.K. Binukumar, E-mail: binukumarbk@gmail.com
Received: 10/09/2024; Revised: 29/10/2024; Accepted: 15/11/2024; Published: 29/01/2025
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Abstract
Rare diseases, also known as orphan diseases, pose significant clinical and economic burdens, affecting millions
of people worldwide. With over 7,000 known rare diseases globally, 80% of which have genetic origins, the
symptoms vary not only from disease to disease but also from patient to patient, even among those suffering
from the same disease. Most of these diseases are degenerative and progressive in nature. In India, over 70
million people are affected by rare diseases. Delays in early diagnosis due to lack of relevant genomic
information and scientific knowledge, as well as insufficient healthcare infrastructure and difficulties in
accessing treatment are some of the common challenges faced in the treatment of rare diseases. This study
provides an overview of global and national efforts to address rare diseases, the barriers to diagnosis and
treatment and the need for coordinated research, policy, and healthcare solutions.
Keywords: Orphan disease, NCATS, RARE List™, ICMR, IGIB
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Introduction
Rare diseases pose clinical and economic burden as well as a significant challenge for health systems. About
6,000 to 7,000 patients are reported to be suffering from rare diseases, for most of which no specific treatment
options are available. A disease or disorder is defined as rare in Europe when it affects less than 1 in 2000 in
the population and in the USA, it is set to be at 1 / 200,000 at any given time. A rare disease is often referred to
as an orphan disease. They are characterized by a broad diversity of disorders and symptoms that vary not only
from disease to disease but also from patient-to-patient suffering from the same disease. 80% of the rare
diseases have genetic origins and others are the result of infections, allergies, and environmental causes. Most of
them are degenerative and proliferate in nature and 50% of rare diseases affect children. Most common
symptoms can hide underlying rare diseases, leading to misdiagnosis. In most of the cases, there may not be
effective cure and can cause high level of pain and suffering to the patients as well as their families.
Early diagnosis is a major challenge in rare diseases and most cases remain undiagnosed for a long period of
time. Majority of the cases take more than 7 years to diagnose. During this period the patients experience poor
physical and mental health problems. They also try a variety of laboratory tests and often visit super-specialty
doctors and hospitals. It is very important to put an end to this diagnostic dilemma. Once the patient receives a
proper diagnosis, they can move to next steps of disease management looking for different treatment options,
lifestyle changes etc. More than 7000 rare diseases are identified globally and about 450 of them have been
reported in India. For most diseases treatment is unavailable even after proper diagnosis, because only about 5
percent of rare diseases have a treatment approved by the Food and Drug Administration. Most of them are very
expensive and unaffordable to common man. Insurance policies most of the time do not cover these ongoing
(lifelong) treatment expenses.
Common Problems faced and international initiative
The major delay in rare disease diagnosis is due to the lack of quality of genomic information and scientific
knowledge. The lack of appropriate quality healthcare engenders inequalities and difficulties in access to
treatment and care. Most of the time, this situation leads to heavy social and financial burdens on patients and
family. The initial misdiagnosis is common in most cases of rare diseases because of the board diversity and
relatively common symptoms associated with other diseases. Due to the spatiality and verity of rare diseases,
research needs to be global to ensure that policy-making experts, healthcare providers, basic researchers, and
clinicians are connected. In addition to that clinical trials are multinational and that patients can benefit from the
pooling of data and resources across borders. Initiatives such as the European Reference Networks, the
International Rare Disease Research Consortium and the EU Framework Programme for Research and
Innovation Horizon 2020 support international level collaborative research on rare diseases.
The incidence of rare diseases globally and specific to India
The major concern in rare diseases is that it cannot be determined by a universal definition. However, the
importance of having a consistent definition is well acknowledged. Adopting a standard definition of rare
disease is a pre-requisite for public policy development. There are approximately 350 million patients affected
by about 7000 known rare diseases. Rough estimates indicate that over 70 million people in India are affected
by rare diseases, many of whom may still not have a diagnosis. Different rare diseases database including
Orphanet database is updated every year to accommodate new diseases that are being reported. Orphanet
database is maintained by the European Union. We do not yet have accurate statistics on the incidence or
prevalence of rare diseases in India. This is mainly because of the lack of definition and more importantly, due
to the lack of diagnostic tools and equipment and systematic data collection systems in India. Half of the rare
diseases are early onset childhood diseases. About 80% of all rare diseases are genetic in origin, most of them
monogenic. The US National Institutes of Health initiatives such as the Undiagnosed Diseases Network (UDN)
and the international rare diseases research consortium (IRDiRC) aim to address this challenge by accelerating
the speed of diagnosis. The goal is to bring the average time to diagnosis down to one year.
Time to time, scientific and patient communities have expressed the need for government initiatives towards
rare diseases. The first attempt to bring together all experts of rare diseases under a common platform was
initiated by Indian National Science Academy (INSA), which conducted the first of the kind rare disease
workshop entitled “To Develop a Scientific Program for Research on Rare Diseases” in 2016, which deliberated
on issues such as definition of “Rare disease,” rare disease awareness, rare disease research avenues, policy
framework for boosting and incentivizing research and development efforts and framing suitable legislation to
ensure involvement of the State in fulfilling the special needs of rare diseases. In the INSA rare disease
workshop (2016), the honourable Drug Controller General of India stated that a policy for accelerated clearance
of orphan drugs and fast-track approval is not in place because government needs clear-cut recommendations
regarding the definition of rare disease, mechanism for fast-track approval (e.g., waiver of a specific phase in
orphan drug clinical trial). He again stated that genetic differences in Indian population warrant studies from
India, rather than using data from studies in other countries. He also invited for expert suggestions on the need
of changes in the drugs and cosmetic act to meet the requirements of research in rare disease.[1]
The Genetic and Rare Diseases Information Center (GARD) is a program of the National Center for Advancing
Translational Sciences (NCATS) and is funded by two associate institutions of the National Institutes of Health
(NIH): NCATS and the National Human Genome Research Institute (NHGRI). GARD provides the public with
access to current, reliable, and easy-to-understand information about rare or genetic diseases in English or
Spanish. NORD’s database provides brief introductions for patients and their families about more than 1,200
rare diseases. This is not a comprehensive database considering the fact that there are nearly 7,000 diseases
considered rare in the U.S.
RARE List™
The RARE List™ comprises approximately 7,000 different rare diseases and disorders affecting more than 300
million people worldwide. Some common diseases are included on the RARE List™ because in the United
States one of the primary criteria for recognizing a disease as rare is the prevalence of the disease fewer than
200,000 cases. Diseases such as malaria are quite common in some parts of the world but are considered rare in
the United States. Other diseases such as Cancer or Alzheimer's are not rare diseases, but certain forms of these
diseases are considered rare.[2]
The Indian Council of Medical Research (ICMR) initiative
ICMR has been providing financial assistance to projects for orphan disease research and for
sponsoring/organizing workshops /conferences /training programs on rare diseases. It has also taken the
initiative in the preparation of a registry for rare disease. [3,4] This is referred to as National Initiative for Rare
Diseases (NIRD), organized jointly by ICMR, AIIMS, JNU, and PRESIDE. The first step in this endeavour is to
identify patients with the rare disease. “Indian rare disease registry” was launched on April 27, 2017. This
registry is intended to cover all rare and ultra-rare diseases prevalent in India. The registry was first intended to
be hospital-based and later population based. The objectives of the registry include: to identify patients having
rare diseases, to use that data for policy framing and to guide future research. The registry may also enable
proper and easy monitoring of the diseases including their prevalence, incidence and natural history with regard
to the Indian context.
Council of Scientific & Industrial Research (CSIR) and Institute of Genomics & Integrative Biology
(IGIB) initiative
IGIB, New Delhi, has conducted a project funded by CSIR, named as “Genomics for Understanding Rare
Diseases India Alliance Network (GUaRDIAN),” for the purpose to bring together and understand novel genetic
variations to achieve translational applications by both clinicians and basic science researchers. GUaRDIAN, the
pioneer and one of the largest networks of clinicians and researchers in India have been working on rare genetic
diseases. The CSIR- IGIB offers a research oriented, well-structured and carefully supervised training
programme in rare diseases and related fields.
Indian Collaborative Research Network on Wilson's Disease (ICROWD)
ICROWD is also another programme supported by CSIR at IGIB for Wilson’s diseases (WD). WD, a classical
monogenic disorder, is the commonest cause of paediatric chronic liver disease in Indian subcontinent and also,
one of the few treatable causes of liver disease across all populations. We have already established a pilot
network of over 40 clinicians and researchers from over 9 medical and research centres across the country
working in the area of WD. The ICROWD has four major components encompassing the clinical areas of WD,
the molecular genetic basis of WD, disease modelling and correction of gene defects. For each of the four areas,
we have a consortium approach to deliver better diagnosis and personalized, precision medicine in WD clinical
settings in India. [5]
Nongovernmental organization initiative
Organization for Rare Diseases India (ORDI; www.ordindia.org) is a voluntary organization which was
established to deal with the rare disease conditions in the Indian population. The ORDI team members belong to
different disciplines and they need not have a science background. ORDI deals with the matters related to the
rare disease such as unique challenges in dealing with rare diseases. [6] The Indian organization for rare diseases
was conceived in 2005 and is incorporated as a not-for-profit organization in India as well as in the USA. It is
the umbrella organization and represents interests of all rare diseases, individual patients, patient support groups,
health policy advocates and health care provider for rare diseases.
Judiciary initiative
In November 2016, the Delhi High Court had ordered the government to finalize a policy on rare diseases and
consequently a draft policy was submitted by the Union Ministry of Health to the Delhi High Court on May 25.
The Delhi High Court then directed the Centre to implement a National Policy for treatment of Rare Diseases
without delay. [7]
Academic institutes
There are many ongoing research projects on various aspects of rare diseases undertaken by reputed institutes
such as AIIMS, PGIMER Chandigarh, Christian Medical College, Vellore, and SGPGI Lucknow. It is expected
that the outcome of these projects would contribute significantly to solving the existing problems in dealing with
rare diseases such as diagnosis, treatment protocols, causes and genetic basis of the diseases.
Rare Disease Day® is observed worldwide, typically on or near the last day of February each year, to create
awareness among policymakers and the public about rare diseases and their impact on patients’ lives. [8,9] Each
year, NCATS and the NIH Clinical Centre (CC) sponsor Rare Disease Day at NIH as part of this global
observance. The global theme for 2019 was “bridging health and social care.”
Recently, the Government of India has informed the Hounarable Madras High Court during the hearing of a
Public Litigation Petition (PIL) filed by the Lysosomal Storage Disorders (LSD) Support Society of India, New
Delhi, that the Government has published a draft policy on rare diseases, seeking public opinion on it. It will be
finalized only after considering the views of all stake holders. It is stated that the draft policy envisages a
provision of Rs. 150000, for meeting medical expenses, to those suffering from LSD. The draft policy
categorises rare diseases amenable to one-time curative treatment such as Haemopoietic stem cell
transplantation and those that require organ transplantation into one group. Patients suffering from these
diseases are eligible for the relief under the umbrella scheme of Rastriya Arokya Nidhi from Government of
India (The Hindu, dated 11.02.2020).
Financial support and sponsorship
Nil
Conflict of interest
There are no conflicts of interest.
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