Investigating a medication for early Parkinson's disease

Basic and Clinical Studies of Levodopa/Carbidopa/Entacapone in the Treatment of Early Parkinson's Disease

Phase 4 Interventional Second Affiliated Hospital of Soochow University · NCT06236230

This study is testing if a low-dose combination of medications can help improve movement and quality of life for people with early Parkinson's disease.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment60 (estimated)
Ages30 Years to 80 Years
SexAll
SponsorSecond Affiliated Hospital of Soochow University Academic / other
Locations1 site (Shanghai, Shanghai)
Trial IDNCT06236230 on ClinicalTrials.gov

What this trial studies

This open-label, single-arm investigation will evaluate the effects of low doses of levodopa/carbidopa/entacapone on motor function and quality of life in patients diagnosed with early Parkinson's disease. The study will enroll participants aged 30 to 80 who are at Hoehn-Yahr stages 1.5 to 3.0 and are either not on anti-Parkinson's medication or have been stable on such medication for at least 30 days. Over an 8-week period, the impact of the treatment will be assessed to determine its efficacy in improving symptoms.

Who should consider this trial

Good fit: Ideal candidates are individuals aged 30 to 80 with a diagnosis of idiopathic Parkinson's disease at Hoehn-Yahr stages 1.5 to 3.0.

Not a fit: Patients with atypical Parkinsonian syndromes, severe cognitive impairments, or those currently participating in other clinical trials may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could enhance motor function and quality of life for patients with early Parkinson's disease.

How similar studies have performed: Previous studies have shown positive outcomes with levodopa/carbidopa/entacapone in treating Parkinson's disease, indicating this approach has been tested with some success.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Male or female and greater from 30 to 80.
* Diagnosis of idiopathic PD according to the MDS PD Diagnostic Criteria (2015).
* Hoehn-Yahr stage of 1.5-3.0 ("open" stage).
* Not on anti-PD medication or stable on anti-PD medication for at least 30 days.

Exclusion Criteria:

* Diagnosis of atypical Parkinsonian syndrome, vascular Parkinsonism or drug-induced Parkinsonism.
* History of surgery within 6 months.
* Alcoholism, drug abuse, or severe cognitive impairment (including severe Alzheimer's disease)
* Psychiatric illness, epilepsy, pregnancy and breastfeeding, and clinically significant concomitant illnesses
* Participation in another clinical trial within 2 months.
* With dyskinesia.
* Any other condition that, in the opinion of the investigator, makes them ineligible for enrolment.

Where this trial is running

Shanghai, Shanghai

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 Diseaselevodopa/carbidopa/entacapone
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.