Clinical trial • Not applicable • Neurology

Adeno-associated viral vector serotype 2 encoding glial cell line-derived neurotrophic factor (GDNF) for Multiple system atrophy | Parkinson's disease

Not applicable trial of Adeno-associated viral vector serotype 2 encoding glial cell line-derived neurotrophic factor (GDNF) for Multiple system atrophy |…

Overview

Trial Therapeutic Area
Neurology
Trial Disease
Multiple system atrophy | Parkinson's disease
Trial Stage
Not applicable
Drug Modality
Gene therapy | Radiopharmaceutical | Small molecule

Key dates

Initial CTIS Submission Date
26-08-2025
First CTIS Authorization Date
22-12-2025

Trial design

None/Not specified-controlled Not applicable trial across 2 sites in Poland.

Comparator
None/Not specified
Target Sample Size
90
Trial Duration For Participant
4018

Eligibility

Recruits 90 No vulnerable population selected; participants must provide informed consent. No assent or paediatric consent mentioned..

Vulnerable Population
No vulnerable population selected; participants must provide informed consent. No assent or paediatric consent mentioned.

Inclusion criteria

  • {"criterion_text":"- PD and MSA-P participants that are or were enrolled in an interventional AB-1005 study and provide informed consent."}

Exclusion criteria

  • {"criterion_text":"- There are no exclusion criteria for this study"}

Endpoints

Primary endpoints

  • {"endpoint_text":"- Incidence and severity of AEs (serious and non-serious)","definition_or_measurement_approach":""}

Secondary endpoints

  • {"endpoint_text":"- For PD participants - Normalized PD motor diary times (Good ON, ON with troublesome dyskinesia, OFF)","definition_or_measurement_approach":"Normalized PD motor diary times measured using participant PD motor diaries (Good ON, ON with troublesome dyskinesia, OFF)."}
  • {"endpoint_text":"- For PD participants - MDS-UPDRS part III (OFF and ON)","definition_or_measurement_approach":"MDS-UPDRS Part III motor examination assessed in OFF and ON medication states."}
  • {"endpoint_text":"- For PD participants - MDS-UPDRS part II (OFF and ON)","definition_or_measurement_approach":"MDS-UPDRS Part II self-reported activities of daily living assessed in OFF and ON states."}
  • {"endpoint_text":"- For PD participants - MDS-UPDRS part I","definition_or_measurement_approach":"MDS-UPDRS Part I non-motor experiences of daily living assessment."}
  • {"endpoint_text":"- For PD participants - MDS-UPDRS part IV","definition_or_measurement_approach":"MDS-UPDRS Part IV motor complications assessment."}
  • {"endpoint_text":"- For PD participants - Levodopa equivalent daily dose (LEDD)","definition_or_measurement_approach":"Calculated levodopa equivalent daily dose (LEDD) from concomitant Parkinson's medications."}
  • {"endpoint_text":"- For PD participants - 18F-DOPA PET","definition_or_measurement_approach":"18F-DOPA PET imaging as specified in protocol."}
  • {"endpoint_text":"- For MSA participants - UMSARS parts I, II (ON), III, IV","definition_or_measurement_approach":"Unified Multiple System Atrophy Rating Scale (UMSARS) assessments (parts I, II (ON), III, IV)."}
  • {"endpoint_text":"- For MSA participants - MSA-QoL","definition_or_measurement_approach":"Multiple System Atrophy Quality of Life (MSA-QoL) questionnaire."}

Recruitment

Planned Sample Size
90
Recruitment Window Months
132
Consent Approach
Participants must provide informed consent. Subject information and informed consent form available (document L1_ICF_PL_PL_public). Consent document appears to be in Polish (PL). No assent or paediatric consent processes described.

Geography

Total Number Of Sites
2
Total Number Of Participants
90

Poland

Earliest CTIS Part Ii Submission Date
17-11-2025
Latest Decision Or Authorization Date
23-03-2026
Processing Time Days
126
Number Of Sites
2
Number Of Participants
40

Sites

Site Name
Specjalistyczna Praktyka Lekarska Prof. Grzegorz Opala
Department Name
Specjalistyczna Praktyka Lekarska Prof. Grzegorz Opala
Contact Person Name
Grzegorz Opala
Contact Person Email
opala.praktyka@gmail.com
Site Name
Copernicus Podmiot Leczniczy Sp. z o.o.
Department Name
Oddział Neurologiczny i Udarowy
Contact Person Name
Jarosław Sławek

Sponsor

Primary sponsor

Full Name
Askbio Inc.
Organisation Type
Pharmaceutical company
Country Of Registered Address
United States

Third parties

  • {"country":"Germany","full_name":"Bayer AG","duties_or_roles":"Sponsor duties codes: 1,10,11,12,13,5,6,7,8,9; contact clinical-trials-contact@bayer.com","organisation_type":"Pharmaceutical company"}

Investigational products

Investigational Product Name
AAV2-GDNF
Active Substance
Adeno-associated viral vector serotype 2 encoding glial cell line-derived neurotrophic factor (GDNF)
Modality
Gene therapy
Routes Of Administration
Intraputaminal use
Route
Intraputaminal
Maximum Dose
12000000000000 (units: Other)
Investigational Product Name
Fluorodopa (18F)
Active Substance
Fluorodopa (18F)
Modality
Radiopharmaceutical
Routes Of Administration
Intravenous
Route
Intravenous
Maximum Dose
max daily 222 MBq; max total 888 MBq
Investigational Product Name
Carbidopa
Active Substance
Carbidopa
Modality
Small molecule
Routes Of Administration
Oral
Route
Oral
Maximum Dose
200 mg daily

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