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Does the Future Hold a Cure For Parkinson’s Disease?

August 4, 2022Neelem Sheikh

Parkinson’s disease (PD) is the fastest-growing neurological disorder in the world. According to the Parkinson’s Foundation, approximately 60,000 Americans are diagnosed with Parkinson's disease each year. More than 10 million people worldwide are living with Parkinson’s disease. 

While there is currently no cure for Parkinson’s disease, a large and incredibly promising Parkinson’s research pipeline is emerging. In this article, we will discuss advancements in Parkinson’s disease research, treatments under development, current treatment approaches, and the future of Parkinson's disease treatment. 

Is There a Cure for Parkinson’s Disease?

Currently, there is no cure for Parkinson’s disease. However, our understanding of how Parkinson’s disease develops and progresses has grown significantly. We have gained a greater understanding of genetic influences, risk factors, and the series of events that leads to damaged or lost brain cells. This growing body of research has created a strong foundation for developing new treatments and therapies.

Parkinson’s Disease Treatments Under Development

For years, Parkinson’s disease treatments have focused on treating the symptoms of the disease and increasing dopamine levels in the brain. Recently, this focus has shifted—new treatments are being tested in clinical trials to slow, stop, or even reverse the disease. 

Stem cell therapy and gene therapy are among these treatments under development. 

Stem Cell Therapy for Parkinson’s Disease

Over the past 20 years, researchers have investigated potential strategies to utilize stem cells to supplement dopamine by replacing the lost dopaminergic neurons with stem cell-derived equivalents. Currently, researchers are working to utilize embryonic stem cells (ESCs), induced pluripotent stem cells (iPSCs), and neural stem cells (NSCs) to induce the differentiation of such stem cells into mature dopaminergic cells.

Stem cell therapy for the treatment of PD has proven successful in many animal studies, including in monkey, pig, rat, and mice models. The first clinical trials investigating the use of stem cell therapy aiming to combat the loss of substantia nigra neurons are already underway in the U.S., Japan, and Europe.

Gene Therapy for Parkinson’s Disease

Diagram showing how gene therapy works.

Gene therapy is another exciting avenue for Parkinson’s disease treatment. Several clinical trials have

utilized various gene therapy strategies, whether to change the circuitry in the brain, support the survival of neurons, increase dopamine production, or increase the effectiveness of levodopa treatment. These include:

  • Glutamic acid decarboxylase (GAD).
  • Aromatic amino acid decarboxylase (AADC).
  • Tyrosine hydroxylase, guanosine triphosphate, and aromatic amino acid decarboxylase (TH-GCH-AADC).
  • Neurturin (NTN), glial-derived neurotrophic factor (GDNF).

Current Approaches for Parkinson’s Disease Treatment

The manifestation of Parkinson’s disease symptoms tends to vary significantly from patient to patient. There are more than 40 known Parkinson’s disease symptoms, and not all patients will experience the same combination of symptoms. Individuals with Parkinson’s disease will likely experience a combination of both motor and non-motor symptoms throughout the disease course. 

Currently, treatment of Parkinson’s disease is symptom-based. Doctors typically prescribe a combination of effective medications depending on which symptoms are present in a given patient. Medications prescribed to treat Parkinson’s disease symptoms include:

  • Carbidopa-levodopa.
  • Inhaled carbidopa-levodopa.
  • Carbidopa-levodopa infusion.
  • Dopamine agonists.
  • MAO B inhibitors.
  • Catechol O-methyltransferase (COMT) inhibitors.
  • Anticholinergics. 
  • Amantadine.

Depending on the patient, surgical procedures such as deep brain stimulation (DBS), and supportive therapies, such as physiotherapy, occupational therapy, and speech and language therapy, may also be used as part of treatment. 

Does the Future Hold a Cure for Parkinson’s Disease?

While Parkinson’s disease symptoms can vary significantly from patient to patient, the underlying cause of the symptoms remains the same—Parkinson’s disease is caused by a loss of nerve cells in the substantia nigra. It primarily impacts dopaminergic, or dopamine-producing, neurons, ultimately resulting in reduced dopamine production and impaired movement.

While there may not be one single cure for Parkinson’s disease, multiple effective treatments may be used in combination to either:

  • Slow or halt the progression of Parkinson’s disease.
  • Repair or replace damaged dopaminergic neurons.

Effective treatment will rely heavily on the ability to diagnose Parkinson’s disease in the earliest stages. While no brain scan or lab test (e.g. blood, cerebrospinal fluid, and urine) can currently provide a definitive diagnosis of Parkinson’s disease, researchers are working tirelessly to pinpoint specific hallmarks and symptoms in earlier stages to support early diagnosis.

Altoida: Pioneering AI-Enabled Precision Diagnosis

At Altoida, we are building the world’s-first Precision Neurology platform and app-based medical device—backed by 11 years of clinical validation—to accelerate and improve drug development, neurological disease research, and patient care.

By completing a 10-minute series of augmented reality and motor activities designed to simulate complex Activities of Daily Living on a smartphone or tablet, Altoida’s device extracts and provides robust measurements of neurocognitive function across 13 neurocognitive domains. Our device measures and analyzes nearly 800 multimodal cognitive and functional digital biomarkers. Through the collection of highly granular data from integrated smartphone or tablet sensors, Altoida’s device produces comprehensive neurocognitive domain scores. This data can be tracked longitudinally to reveal trends and patterns while flagging concerning ones.

This method, along with our innovative artificial intelligence, will pioneer fully digital predictive neurological disease diagnosis. In 2021, our device received Breakthrough Device designation by the FDA. Altoida's platform has demonstrated the ability to predict conversion from Mild Cognitive Impairment to Alzheimer's disease with a high degree of accuracy.

Currently, we are working to enable early and accurate diagnosis of neurodegenerative diseases like Parkinson’s. Our AI-powered technology will be utilized to monitor disease progression as well as to measure therapeutic response in Parkinson’s disease patients.

To learn more about a future cure for Parkinson’s disease or about utilizing Altoida’s Precision Neurology platform, contact us today.

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