Phase II Double Blind Controlled Trial of Nigral Grafting in Patients With Parkinson's Disease
fetal nigral transplantation
Synucléinopathies+13
+ Maladies des ganglions de la base
+ Maladies du cerveau
Étude thérapeutique
Résumé
Date de début de l'étude : 1 janvier 1996
Date à laquelle le premier participant a commencé l'étude.PROTOCOL OUTLINE: This is a placebo controlled, randomized, double blind study. Patients are randomly assigned to 1 of 3 treatment groups. All patients receive 2 separate operations in which the substantia nigra from either 4 fetuses (Group A) or 1 fetus (Group C) is implanted into the striatum of each side. Group B patients receive 2 separate placebo operations without fetal transplantation. The second surgical procedure begins approximately 1 week after the first operation. After 2 years, treatments are compared. If transplant is shown to benefit Parkinson's disease, then patients who received placebo operation will be offered transplant surgery in the final year of the study.
Protocole
Cette section fournit des détails sur le plan de l'étude, y compris la manière dont l'étude est conçue et ce qu'elle évalue.34 participants à inclure
Nombre total de participants que l'essai clinique vise à recruter.Traitement
Éligibilité
Les chercheurs recherchent des patients correspondant à une certaine description appelée critères d'éligibilité : état de santé général ou traitements antérieurs du patient.Tout sexe
Le sexe biologique des participants éligibles à s'inscrire.De 35 à 75 ans
Tranche d'âge des participants éligibles à participer.Volontaires sains non autorisés
Indique si les individus en bonne santé et ne présentant pas la condition étudiée peuvent participer.Conditions
Pathologie
Critères
PROTOCOL ENTRY CRITERIA: --Disease Characteristics-- Advanced Parkinson's disease Hoehn-Yahr stage IV or worse during "off" periods Hoehn-Yahr stage III or better during "on" periods Predictable motor fluctuations with at least 20% of waking day in the "off" stage No atypical parkinsonism or secondary parkinsonism --Prior/Concurrent Therapy-- Biologic therapy: Not specified Chemotherapy: Stable doses of levodopa/carbidopa or any other antiparkinson therapy for 2 months prior to study Surgery: No previous intracranial/neurosurgical procedures --Patient Characteristics-- Renal: Creatinine clearance at least 70 mL/min or creatinine no greater than 1.8 mg/dL Protein no greater than 300 mg/dL Other: Not pregnant or nursing Adequate contraception required of fertile patients Prior history of good response to levodopa No sensitivity to cyclosporine Not HIV positive (e.g., HIV I or II) No human T-cell leukemia/lymphoma virus (HTLV-1) No tremors interfering with stereotactic surgery No clinically significant medical, neoplastic or infectious disease No clinically significant laboratory abnormality No dementia that precludes signing informed consent or score of less than 24 on Mini-Mental status examination