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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

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00206687
Enrollment
71
Registered
2005-09-21
Start date
2003-01-08
Completion date
2012-05-14
Last updated
2024-10-31

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Parkinson Disease

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.

Detailed description

This study has previously been posted by Berlex, Inc. and Schering AG, Germany.Berlex, Inc. has been renamed to Bayer HealthCare Pharmaceuticals, Inc., Schering AG Germany has been renamed to Bayer Schering Pharma AG, Germany. Bayer HealthCare Pharmaceuticals, Inc.and Bayer Schering Pharma AG, Germany are the sponsors of the trial.

Interventions

Bilateral implantation of Spheramine into the postcommissural putamen, each side at a dose of 325,000 cells

PROCEDUREPlacebo

Sham surgery procedure without penetration of the dura mater. Nothing wil be implanted into the brain.

Sponsors

Titan Pharmaceuticals
CollaboratorINDUSTRY
Bayer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
30 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Advanced Parkinson's disease for at least 5 years * Good response to L-dopa * Age 30 to 70 years * Optimum oral therapy

Exclusion criteria

* Tremor only * Dementia * Very severe dyskinesia * Previous brain surgery including deep brain stimulation * Malignant disease

Design outcomes

Primary

MeasureTime frame
Change in UPDRS part III (Motor Score) in the defined medication at 12 months post surgery12 months post surgery

Secondary

MeasureTime frame
Change in UPDRS Part III in ON at 12 months post surgery12 months post surgery
Amount of L-dopa reduction at 12 months post surgery12 months post surgery
Change in total UPDRS in ON and OFF at 12 months post surgery12 months post surgery
Quality of Life as assessed by PDQ-39, SF-36 and EQ-5D at 12 months post surgery12 months post surgery
Percent time spent in ON and OFF at 12 months post surgery12 months post surgery
Activities of Daily Living subscore of the UPDRS at 12 months post surgery12 months post surgery

Countries

Germany, Spain, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 29, 2026