Identifying protein biomarkers in biofluids for neurodegenerative disorders

Discovery and Validation of Protein Structural Complexes in Circulating Biofluids As Novel Biomarkers for Early Diagnosis, Prognosis and Therapeutic Management of Patients Affected by Neurodegenerative Disorders

Observational Neuromed IRCCS · NCT06803784

This study is trying to find specific proteins in blood and other fluids that could help doctors diagnose and manage neurodegenerative diseases like Parkinson's and Alzheimer's earlier and better.

Quick facts

Study typeObservational
Enrollment110 (estimated)
Ages20 Years and up
SexAll
SponsorNeuromed IRCCS Academic / other
Locations1 site (Pozzilli, Italy)
Trial IDNCT06803784 on ClinicalTrials.gov

What this trial studies

This observational study aims to discover and validate protein structural complexes in circulating biofluids as potential biomarkers for early diagnosis, prognosis, and therapeutic management of neurodegenerative disorders such as Parkinson's disease, Alzheimer's disease, Frontotemporal dementia, and Amyotrophic Lateral Sclerosis. The study will involve collecting samples from a large cohort of patients and healthy subjects, utilizing advanced genomics, proteomics, and bioinformatics to analyze protein complexes. The findings will be correlated with genetic profiling and disease characteristics, and validated using human brain tissue and dopaminergic cultures.

Who should consider this trial

Good fit: Ideal candidates include patients diagnosed with neurodegenerative disorders and their relatives, as well as healthy subjects for comparison.

Not a fit: Patients with atypical symptoms or secondary parkinsonism may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to earlier and more accurate diagnoses of neurodegenerative disorders, improving patient management and treatment outcomes.

How similar studies have performed: Other studies have shown promise in identifying biomarkers for neurodegenerative diseases, but this approach focusing on protein structural complexes in biofluids is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
* Inclusion Criteria:
* Inclusion criteria for PD patients.

For the IRCCS INM Neuromed, patients will be recruited from those affiliated with the Center for the Study and Treatment of Parkinson's Disease of the Neuromed Institute of Pozzilli. Affected subjects will be selected according to the criteria proposed by Gelb et al in 1999. This is a very pragmatic scheme based on the presence of four cardinal signs, the response to a test administration of Levodopa and the absence of atypical signs:

A) Presence of at least 2 of the 4 cardinal signs (tremor, rigidity, bradykinesia, asymmetric onset) one of which must be tremor or bradykinesia; B) Absence of atypical symptoms such as: i) early postural instability, freezing phenomena, cognitive deterioration, hallucinations, pathological involuntary movements, vertical gaze paralysis; ii) proven causes of secondary parkinsonism (focal lesions, drugs, toxic substances); C) Documented response to the use of L-dopa or dapamine agonists (or lack of an adequate therapeutic attempt with L-dopa or dopamine agonists).

* Inclusion criteria forAD patients. Patients will be selected at the Center for Cognitive Disorders and Dementias (CDCD) SCDU Neurology, AOU Maggiore della Carità, Novara. Patients with AD will be included after diagnosis of probable Alzheimer's disease according to the McKhann criteria (2011) and supported by positive biomarkers for amyloidopathy (PET with amyloid tracer or amyloid cerebrospinal fluid dosage).
* Inclusion criteria for FTD/ALS patients. For UPO, patients will be selected at the tertiary center Amyotrophic Lateral Sclerosis - SCDU Neurology, AOU Maggiore della Carità, Novara. Patients with amyotrophic lateral sclerosis will be included following a diagnosis according to the El Escorial criteria - revised (2015): in this regard, only patients with a definite or probable diagnosis supported by laboratory will be included. For patients with FTD, they will be selected at both centers mentioned above with a diagnosis according to the Rascovsky criteria (2011). In this group, the diagnosis will be supported by negative biomarkers for amyloidopathy (PET with amyloid tracer or amyloid cerebrospinal fluid dosage). For patients with concomitant ALS and FTD, the El Escorial criteria (2015) associated with the Strong criteria (2017) will be used.

Exclusion Criteria:

* PD PATIENTS

  * pre-existing psychiatric pathologies;
  * neurodegenerative neurological diseases such as multiple sclerosis, amyotrophic lateral sclerosis, Alzheimer's, neuromuscular diseases, epilepsy;
  * diagnosis of dementia;
* AD/FTD/ALS PATIENTS

  * pre-existing psychiatric pathologies;
  * previous diagnosis of other neurodegenerative neurological diseases;
  * patients unable to sign informed consent.
* CONTROLS

  * pre-existing psychiatric pathologies;
  * neurodegenerative neurological diseases such as Parkinson's, multiple sclerosis, amyotrophic lateral sclerosis, Alzheimer's, neuromuscular diseases, epilepsy;
  * diagnosis of dementia;
  * depression;
  * prolonged intake of anxiolytic, antidepressant, antipsychotic, sleep-inducing, cognitive stimulant drugs.

Where this trial is running

Pozzilli, Italy

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Parkinson DiseaseAmyotrophic Lateral SclerosisFrontotemporal DementiaAlzheimer&amp#39s Diseaseprotein structural complexes in Neurodegenerative diseasescirculating biomarkers for neurodegenerative diseases
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.