The field of medicine has progressed immensely; however, despite the development of vaccines, antibiotics, and targeted therapies that have saved the lives of millions of individuals, many diseases are still deemed “almost impossible” to cure by medical professionals.
While patients may not have a cure for these diseases, many can be treated to relieve symptoms, slow disease progression, and/or prolong their lives. Nevertheless, documented evidence shows that these diseases do not have a readily available “cure” for the public. Below is a list of 25 such diseases that doctors say are almost impossible to cure. These diseases present unique challenges, including the barriers to developing effective treatments and/or achieving a “cure.”
1. Alzheimer’s Disease
Link
Alzheimer’s is one of the more prevalent non-curable forms of neurodegenerative disease. From a medical perspective, curing Alzheimer’s will probably never be possible due to the complexity of its many pathological processes (e.g., amyloid, tau, and tauficious) involved in Alzheimer’s pathology. There are many newer drugs to slow the rate of disease progression, and Alzheimer’s cannot be cured as of now, as well as help restore some lost memories for a small subset of Alzheimer’s patients.
2. Glioblastoma (GBM)
Source: brainandspine
Most oncologists regard GBM as one of the fastest-growing, most formless, and most indolent of all cancer types. GBM spreads with great rapidity and will readily metastasize throughout the body (metastasis occurs) via chemotherapy or radiotherapy, thereby rendering surgery entirely ineffective for treating it. Furthermore, even with aggressive treatment, malignant brain tumors are difficult or impossible to remove effectively, resulting in a minimal survival duration despite treatment. Therefore, any cancer found in this area has an extremely low long-term prognosis, even after aggressive treatment.”
3. Pancreatic Cancer
Source: cancer.gov
Pancreatic Ductal Adenocarcinoma (PDAC) is very difficult to detect early, and by the time it shows symptoms, it is often late-stage or metastatic. The dense tissue of the tumor makes it difficult to deliver drugs, and therapy is usually ineffective, so long-term cures are rare.
4. Creutzfeldt–Jakob Disease (Prion Diseases)
Source: shutterstock
Creutzfeldt-Jakob disease (CJD), a prion disease, is caused by misfolded proteins that replicate by converting healthy proteins into prions. Once CJD develops, symptoms develop rapidly—this includes severe dementia, personality changes, and movement problems, all of which progress rapidly without an opportunity for treatment.
5. Amyotrophic Lateral Sclerosis (ALS)
Source: aurorahealthcare
ALS is a progressive disease that destroys motor neurons, causing progressively worse paralysis. While medications may help slow progression, none currently exist that stop or reverse the death of nerve cells. ALS is frequently regarded as one of the most challenging diseases in neurology to cure.
Among the many conditions doctors struggle to treat, some stand out as the Rarest Diseases in the World, where limited cases make effective treatment or research even more challenging
6. Huntington’s Disease
Source: fcneurology
Huntington’s disease therefore represents an inherited progressive condition that results from a genetic mutation leading to the production of a toxic protein that builds up in the brain. Hence, curing Huntington’s will require identifying ways to either modify or turn off the gene that produces this poisonous protein and its associated symptoms of mood disturbances and movement problems. Therefore, only current therapies can provide symptomatic relief from Huntington’s symptoms rather than altering their progression.
7. Metastatic Cancers (Various Types)
Source: AI Generated
When cancer spreads out of its primary site to other organs, the chances of an individual being cured are very slim. Many cases of metastatic cancer can be managed effectively long-term with today’s therapies. Still, the incidence of total removal (cure) of any metastatic cancer is rare because the genetic diversity between the different cancer cells and the myriad of mechanisms that have become resistant to treatment have limited the ability of modern medicine to eliminate the majority of these types of cancers.
8. Recurrent Ovarian Cancer
Source: AI Generated
In many cases of recurrent ovarian cancer, the initial treatment with chemotherapy is very effective; however, following a recurrence, the cancer is often resistant to future chemotherapy treatments, making finding curative therapies for these patients extremely difficult. Therefore, the majority of recurrent ovarian cancer cases are managed palliatively rather than curatively.
9. Mesothelioma
Source: news-medical.net
The majority of mesothelioma cases are linked back to asbestos exposure, which has contributed to an aggressive pattern of spread throughout the pleura/lung lining or peritoneal lining. Surgery to entirely remove mesothelioma is extremely rare, as mesothelioma has developed a well-known resistance to the types of chemotherapy that are available today. As such, most individuals with mesothelioma are provided palliative management rather than curative treatment.
10. Diffuse Intrinsic Pontine Glioma (DIPG)
Source: cancer.gov
DIPG is a condition that affects children and is found in the brainstem. The brainstem is one of the most dangerous places to operate on. There is no surgical option for removing dipg, and the only opportunity for treatment at this point is to use radiation to shrink the tumour; however, the patient will continue to progress to death.
Some of the rarest brain (neurological) diseases in the world also fall into this category, as their complexity makes effective treatment extremely difficult.
11. Progressive Multiple Sclerosis (MS)
Source: neurology
MS is classified as progressive forms of multiple sclerosis, which are the major relapsing-remitting types of MS. Many treatments exist for relapsing-remitting MS, but very few treatment options are available to patients with progressive forms of MS. The treatments that are available can be used to slow disease progression and to prevent the onset of further neurological impairment.
12. Systemic Lupus Erythematosus (Severe Lupus)
Source: AI Generated
Lupus is a highly complicated and multifaceted autoimmune process that has the ability to cause damage to multiple organs (eg, kidneys, skin, heart, etc.). Although therapies can be effective at controlling the symptoms of lupus and treating organ system damage, they cannot restore the full function of any affected organs. The term “Severe Lupus” describes a type of lupus that may be managed with treatment but is not completely curable.
13. Type 1 Diabetes
Source: freepik
Type 1 diabetes is an autoimmune disorder that destroys the pancreatic islet beta cells. Although much research has been published on methods to regenerate these beta cells (e.g., islet transplantation) and/or restore the body’s ability to produce insulin through cellular sources (e.g., stem cell-derived cells), there is currently no cure for Type 1 Diabetes.
14. Chronic Obstructive Pulmonary Disease (COPD)
Source: theconversation
COPD causes progressive damage to lung tissue. The damage to the lung’s alveoli is irreversible and, therefore, cannot be replaced or regenerated. Treatments are available to reduce symptoms and improve a person’s quality of life, but they cannot repair the underlying cause of the disease.
15. Duchenne Muscular Dystrophy (DMD)
Public Domain, Link
DMD is a genetic disorder of childhood that results in the progressive degeneration of skeletal muscle. There are partial solutions (exon skipping and gene therapy) for specific mutations of DMD, but there are no way to restore dystrophin in all of a child’s muscles, making DMD one of the most challenging conditions to cure.
Understanding some of the Oldest Known Viruses in the World also helps explain why certain diseases remain so difficult to cure even today.
16. Cystic Fibrosis (Certain Mutations)
Source: carehospitals
Recently developed CFTR-modulating drugs have greatly increased the life expectancy of people with CF; however, these drugs are only able to help with certain mutations of the CF gene. People with rare genetic variants may receive little or no benefit from these newer drugs. Although lung transplantations may extend life, they do not offer a cure for CF.
17. Autoimmune Vasculitis (Severe Forms)
CC BY-SA 3.0, Link
Autoimmune Vasculitis occurs when an individual has immune system inflammation of the blood vessels that can result in damage to major organs or other diseases. Immunosuppressants can control the autoimmune vasculitis; however, it is very common for relapses to occur, while spontaneous long-term remission from this disease without medication is rare. Doctors view advanced or treatment-resistant Autoimmune Vasculitis as difficult to cure.
18. Multiple Myeloma (Relapsed/Refractory)
Source: gleneagles
Multiple Myeloma is a cancer that occurs nearly exclusively as a recurrence of plasma cell cancer. The newer therapies used to treat Multiple Myeloma increase a patient’s lifespan. However, some patients will still go into remission after being treated with multiple therapies and then relapse, generally leading to incurability of these cases.
19. Atypical Parkinsonian Disorders (e.g., PSP)
Source: medicalnewstoday
Atypical Parkinsonian syndromes (e.g., Progressive Supranuclear Palsy) have a continual decline in function as they progress through time. Evidence suggests that these syndromes do not respond as well to medications like dopamine as those with a classic presentation of Parkinson’s Disease. Treatments to stop the further loss of neurons are currently not available to patients with atypical parkinsonian syndromes.
20. Idiopathic Pulmonary Fibrosis (IPF)
Source: news.vumc.org
Idiopathic Pulmonary Fibrosis is a progressive and ultimately fatal disease that creates scar tissue in the lungs. Although there are anti-fibrotic agents that slow the process of creating scar tissue, there are not currently any therapies that can reverse already-created scar tissue. Because of this, many physicians consider that this disease is manageable, but a complete cure is likely not achievable.
While discussing conditions that defy modern treatment, it’s interesting to note how some people turn to legends—like those explored in “Oldest Vampires to Ever Exist in History”—to contrast the stark reality of diseases that science still can’t conquer.
21. Refractory Epilepsy
Source: cedars-sinai.org
Approximately one-third of epilepsy patients will either not achieve seizure control with multiple anti-epilepsy medications or they will have refractory epilepsy caused by seizures that begin in the brain areas already compromised in some way. Where surgery is an option, curative styles of epilepsy treatment are usually not likely to be effective.
22. Severe Congenital Mitochondrial Disorders
Source: sciencedirect
Severe congenital mitochondrial disorders (inherited mitochondrial disorders) are genetic disorders that primarily affect how the body makes energy in each cell. These disorders can affect many different organs from birth to death. Because mitochondria have their own unique genetic assets and complex bioenergetic systems, successful treatment of mitochondrial conditions is extremely difficult.
23. Hereditary Ataxias (e.g., Spinocerebellar Ataxia)
Source: nature.com
Hereditary ataxias (e.g., Spinocerebellar ataxia) account for a portion of inherited ataxias. Many hereditary ataxias progressively damage the cerebellum, impairing an individual’s ability to adapt to and coordinate with their environment. At present, there is no treatment available that will reverse the underlying genetic defect, and therefore, treatments are limited to the management of the presented symptoms.
24. Advanced HIV Infection
Source: AI Generated
Modern antiretroviral medications can enable an individual with HIV to achieve full health during their lifetime; however, they do not cure HIV. HIV can be present in dormant reservoirs, which makes complete eradication of the virus extremely unlikely; thus far, there have only been a few reported instances of successful immune remission of HIV after a transplant from a sporadic type of donor.
25. Fatal Familial Insomnia (FFI)
Source: storymd
FFI (Fatal Familial Insomnia) is an entirely untreatable and extremely rare prion disease. It affects the thalamus, which controls sleep in the human brain. A mutation in the PRNP gene causes it, and this mutation keeps patients from being able to reach the restorative stages of sleep.
Over time, as patients do not have enough restorative sleep, they will ultimately become severely sleep-deprived, and they will also experience confusion (due to hallucinations), severe weight loss, complications with the autonomic nervous system (e.g., heart problems), severe dementia, and eventually death.
Many of these conditions progress silently for years, much like the terminal illnesses that claimed the lives of several well-known figures, including actors who died of terminal illness.
Conclusion
These 25 diseases recognized by doctors all over the world, reaffirm that the marking of these diseases being curable is next to nothing. Although medicine and scientific technology see remarkable advancement with every passing day, research for these diseases is still in leeway and a complete cure is not up on the table.
However, year after year, there continues to be advancements and increases in treatment options available to help individuals with these diseases, and also an improved quality of life for increased longevity of those individuals.
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