Study Stopped
Study was completed, only life long extended follow-up phase was discontinued after 12 years.
STEPS Trial - Spheramine Safety and Efficacy Study
Study of the Safety, Tolerability and Efficacy of Spheramine Implanted Bilaterally Into the Postcommissural Putamen of Patients With Advanced Parkinson's Disease
2 other identifiers
interventional
71
3 countries
15
Brief Summary
The purpose of the study is to explore the safety, tolerability and efficacy of Spheramine (cultured human retinal pigment epithelial cells on microcarriers) in Parkinson's Disease patients with advanced disease who have insufficient symptom control by optimum oral medication. Patients are randomized to receive Spheramine injections into both hemispheres or a sham surgical procedure in a ratio of 1:1. A three month pretreatment period must be completed prior to surgery. Time to endpoint is 24 months.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2 parkinson-disease
Started Jan 2003
Longer than P75 for phase_2 parkinson-disease
15 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 8, 2003
CompletedFirst Submitted
Initial submission to the registry
September 13, 2005
CompletedFirst Posted
Study publicly available on registry
September 21, 2005
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 14, 2012
CompletedStudy Completion
Last participant's last visit for all outcomes
May 14, 2012
CompletedOctober 31, 2024
October 1, 2024
9.4 years
September 13, 2005
October 29, 2024
Conditions
Outcome Measures
Primary Outcomes (1)
Change in UPDRS part III (Motor Score) in the defined medication at 12 months post surgery
12 months post surgery
Secondary Outcomes (6)
Change in total UPDRS in ON and OFF at 12 months post surgery
12 months post surgery
Change in UPDRS Part III in ON at 12 months post surgery
12 months post surgery
Amount of L-dopa reduction at 12 months post surgery
12 months post surgery
Activities of Daily Living subscore of the UPDRS at 12 months post surgery
12 months post surgery
Quality of Life as assessed by PDQ-39, SF-36 and EQ-5D at 12 months post surgery
12 months post surgery
- +1 more secondary outcomes
Study Arms (2)
Arm 1
EXPERIMENTALArm 2
SHAM COMPARATORInterventions
Bilateral implantation of Spheramine into the postcommissural putamen, each side at a dose of 325,000 cells
Sham surgery procedure without penetration of the dura mater. Nothing wil be implanted into the brain.
Eligibility Criteria
You may qualify if:
- Advanced Parkinson's disease for at least 5 years
- Good response to L-dopa
- Age 30 to 70 years
- Optimum oral therapy
You may not qualify if:
- Tremor only
- Dementia
- Very severe dyskinesia
- Previous brain surgery including deep brain stimulation
- Malignant disease
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Bayerlead
- Titan Pharmaceuticalscollaborator
Study Sites (15)
Unknown Facility
Birmingham, Alabama, 35233, United States
Unknown Facility
Los Angeles, California, 90095, United States
Unknown Facility
Tampa, Florida, 33606, United States
Unknown Facility
Atlanta, Georgia, 30329, United States
Unknown Facility
Chicago, Illinois, 60612, United States
Unknown Facility
Kansas City, Kansas, 66160, United States
Unknown Facility
Boston, Massachusetts, 02118, United States
Unknown Facility
New York, New York, 10029-6574, United States
Unknown Facility
Philadelphia, Pennsylvania, 19107, United States
Unknown Facility
Houston, Texas, 77030, United States
Unknown Facility
Marburg, Hesse, 35039, Germany
Unknown Facility
Homburg, Saarland, 66424, Germany
Unknown Facility
Dresden, Saxony, 01307, Germany
Unknown Facility
Hamburg, 22307, Germany
Unknown Facility
Barcelona, 08036, Spain
Related Publications (1)
Gross RE, Watts RL, Hauser RA, Bakay RA, Reichmann H, von Kummer R, Ondo WG, Reissig E, Eisner W, Steiner-Schulze H, Siedentop H, Fichte K, Hong W, Cornfeldt M, Beebe K, Sandbrink R; Spheramine Investigational Group. Intrastriatal transplantation of microcarrier-bound human retinal pigment epithelial cells versus sham surgery in patients with advanced Parkinson's disease: a double-blind, randomised, controlled trial. Lancet Neurol. 2011 Jun;10(6):509-19. doi: 10.1016/S1474-4422(11)70097-7. Epub 2011 May 10.
PMID: 21565557DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Bayer Study Director
Bayer
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 13, 2005
First Posted
September 21, 2005
Study Start
January 8, 2003
Primary Completion
May 14, 2012
Study Completion
May 14, 2012
Last Updated
October 31, 2024
Record last verified: 2024-10