Evaluating KP405 for safety in healthy individuals and those with Parkinson's disease

A Phase I, Randomised, Double-Blinded, Placebo-Controlled Study to Evaluate KP405. Part 1: Single Ascending Dosing in Healthy Participants. Part 2: Multiple Ascending Dosing in Healthy Participants and Parkinson's Disease Patients.

Early Phase 1 Interventional Kariya Pharmaceuticals · NCT06189170

This study is testing a new treatment called KP405 to see if it's safe for both healthy people and those with Parkinson's disease.

Quick facts

PhaseEarly Phase 1
Study typeInterventional
Enrollment88 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorKariya Pharmaceuticals Industry-sponsored
Locations1 site (Manchester)
Trial IDNCT06189170 on ClinicalTrials.gov

What this trial studies

This study aims to assess the safety, pharmacokinetics, and pharmacodynamics of KP405, a potential new treatment for Parkinson's disease. It will involve both healthy participants and those diagnosed with Parkinson's disease according to established criteria. Participants will receive either KP405 or a placebo, and their responses will be closely monitored to gather data on the drug's effects and tolerability.

Who should consider this trial

Good fit: Ideal candidates include healthy individuals and patients diagnosed with Parkinson's disease who meet specific inclusion criteria.

Not a fit: Patients with significant neurological or psychiatric disorders other than Parkinson's disease may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to a new treatment option that improves the management of Parkinson's disease.

How similar studies have performed: While this approach is exploring new treatment avenues, similar studies have shown promise in evaluating safety and efficacy in early-phase trials.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Healthy as determined by a responsible physician, based on medical evaluation including medical history, physical examination, concomitant medication, vital signs, 12-lead ECG, cardiac Holter monitoring and clinical laboratory evaluations.
* Clinical diagnosis of Parkinson's disease meeting United Kingdom Brain Bank criteria.

Exclusion Criteria:

* Clinically relevant history of abnormal physical or mental health interfering with the study as determined by medical history and physical examinations obtained during Screening as judged by the Investigator (including \[but not limited to\], neurological, psychiatric, endocrine, cardiovascular, respiratory, gastrointestinal, hepatic, or renal disorder), excluding Parkinson's disease.
* Clinically significant, as judged by the Investigator, neurologic disorder (other than Parkinson's disease) including history of stroke or transient ischaemic attack within 12 months of Screening, cognitive impairment, seizure within 5 years of Screening or head trauma with loss of consciousness within 6 months of Screening.

Where this trial is running

Manchester

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 Safety IssuesTolerance
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.