🏛️ Verified NIH Record • Updated 2026-05-14

A Clinical Trial of LY3962681 in Healthy Volunteers and in Patients With Parkinson's Disease (NCT06565195)

A Randomized, Double-blind (Sponsor-unblinded), Placebo-controlled, Single-ascending-dose Study in Healthy Volunteers and a Double-blind (Sponsor-unblinded), Placebo-controlled, Multiple-ascending-dose Study in Patients With Parkinson's Disease to Evaluate the Safety, Tolerability, and PK/PD of LY3962681

🟢 Recruiting Phase1 💊 Investigational Drug / Biologic Sponsor: Prevail Therapeutics

🩺 Plain-English Summary (8th-Grade Level)

The purpose of this study is to evaluate the safety, tolerability, and pharmacokinetics/pharmacodynamics (PK/PD) of LY3962681 in healthy volunteers and patients with Parkinson's disease. The study consists of two parts, the Single Ascending Dose (SAD) study and the Multiple Ascending Dose (MAD) study. During the SAD portion of the study, healthy volunteers will receive a single dose of LY3962681 or placebo (artificial cerebrospinal fluid \[aCSF\]) administered intrathecally (into the spinal fluid). During the MAD portion of the study, patients with Parkinson's disease will receive two doses of either LY3962681 or placebo (aCSF) administered intrathecally (into the spinal fluid), 12 to 24 weeks apart. * The treatment period in the SAD study will be 1 day. The treatment period in the MAD study will be 2 dosing days, 12 to 24 weeks apart. * The follow-up period in the SAD study will be up to 52 weeks. The follow-up period in the MAD study will be up to 52 weeks after Dose 2.

Who can join: Review the eligibility criteria below.

Location: Austin Clinic PPD — Austin, Texas

Age range: 30 Years to 80 Years

🧪 Interventions in This Study

📋 "Do I Qualify?" — 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria ↗

📍 All Participating Trial Locations (4 Sites)

  • Austin Clinic PPD — Austin, Texas
  • Ehime University Hospital — Tōon, Ehime
  • Oita University Hospital — Yufu, Oita Prefecture
  • P-One Clinic, Keikokai Medical Corporation — Hachiōji, Tokyo

📞 Contact the Study Coordinator

Phone: (917) 336-9310

Email: Prevail.Patients@lilly.com

Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.

💰 Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

💡 How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Contact the study coordinator using the phone/email above.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
🏛️ View Official NIH Record ↗