Clinical trial • Phase I/II • Neurology

IFEZUNTIRGENE INILPARVOVEC for Huntington's disease

Phase I/II trial of IFEZUNTIRGENE INILPARVOVEC for Huntington's disease.

Overview

Trial Therapeutic Area
Neurology
Trial Disease
Huntington's disease
Trial Stage
Phase I/II
Drug Modality
Gene therapy
Orphan Drug
Yes

Key dates

Initial CTIS Submission Date
26-06-2024
First CTIS Authorization Date
29-07-2024

Trial design

Randomised, low-dose amt-130 (6 × 10e12 gc/participant) versus high-dose amt-130 (6 × 10e13 gc/participant); no placebo or other comparator specified.-controlled, adaptive Phase I/II trial across 2 sites in Poland.

Randomised
Yes
Comparator
Low-dose AMT-130 (6 × 10e12 gc/participant) versus High-dose AMT-130 (6 × 10e13 gc/participant); no placebo or other comparator specified.
Adaptive
True, Two initial dose cohorts (Cohorts 1 and 2) with an additional double-blind expansion cohort (Cohort 3); if no maximum tolerated dose (MTD) is reached the study will be completed with the pre-planned highest dose and will not be further escalated.
Single Multiple Or Escalation Dose Combined
Yes
Target Sample Size
17
Trial Duration For Participant
1825

Eligibility

Recruits 17 No vulnerable populations selected; participants must provide written informed consent prior to study procedures. All participants are adults (25 to 65 years); no assent process described..

Pregnancy Exclusion
All female participants of childbearing potential (FOCPs) must have a negative serum pregnancy test at Screening (and Visit 1A, as appropriate), a negative pregnancy urine dipstick at Baseline, and not be breastfeeding. All FOCPs and sexually mature males must be compliant with a highly effective birth control method.
Vulnerable Population
No vulnerable populations selected; participants must provide written informed consent prior to study procedures. All participants are adults (25 to 65 years); no assent process described.

Inclusion criteria

  • {"criterion_text":"- Able and willing to provide written informed consent prior to the study and any study-related procedure.\n- Male and female participants 25 to 65 years of age.\n- Cohorts 1 & 2: Early manifest HD as defined by a UHDRS TFC score of 9 to 13 and EITHER a. a DCL of 4 OR b. a DCL of 3 with either a positive (\"Yes\") response to UHDRS Question 80 (multidimensional manifest diagnosis on motor, cognitive, behavioral, functional) or DSM5 criteria for cognitive disorder (American Psychiatric Association, 2013; MDS Task Force criteria). Cohort 3: Early manifest HD as defined by a UHDRS TFC score of ≥11 and EITHER a. a DCL of 4 OR b. a DCL of 3 with either a positive (\"Yes\") response to UHDRS Question 80 (multidimensional manifest diagnosis on motor, cognitive, behavioral, functional) or DSM5 criteria for cognitive disorder (American Psychiatric Association, 2013; MDS Task Force criteria).\n- HTT gene expansion testing with the presence of ≥40 CAG repeats.\n- Striatal MRI volume requirements per hemisphere: a. Putamen ≥2.5 cm3 (per side) b. Caudate ≥2.0 cm3 (per side)\n- All HD concomitant medications (addressing motor, behavioral, and cognitive symptoms) must be stable for 3 months prior to Screening with no change in clinical symptoms requiring change in medication prior to anticipated administration procedure.\n- Able and willing to comply with all procedures and the study visit schedule as outlined in the protocol.\n- All female participants of childbearing potential (FOCPs) must have a negative serum pregnancy test at Screening (and Visit 1A, as appropriate), a negative pregnancy urine dipstick at Baseline, and not be breastfeeding. All FOCPs and sexually mature males must be compliant with a highly effective birth control method."}

Exclusion criteria

  • {"criterion_text":"- Evidence of suicide risk, defined as: a. Suicide attempt within 1 year prior to Screening (Visit 1/1A). b. Suicidal ideation as defined by a positive response to question 5 on the C-SSRS Suicidal Ideation Section within 60 days prior to Screening (Visit 1/1A). c. Significant risk of suicide as judged by the Investigator.\n- Hospitalization for any major medical or surgical procedure involving general anesthesia within 12 weeks of Screening or planned during the study.\n- Current or recurrent disease (including pre-existing cardiovascular or pulmonary conditions), infection, or other significant concurrent medical condition or medications that could confound clinical and laboratory evaluations or could affect a participant’s safety or their ability to undergo the neurosurgical procedure (10+ hour surgical procedure) or comply with the procedures and study visit schedule.\n- Known or suspected intolerance or hypersensitivity to the investigational product(s), closely related compounds, or any of the stated ingredients.\n- Any known allergy to gadoteridol (ProHance®).\n- Screening laboratory values (as measured by the central laboratory): a. Alanine aminotransferase >2 × upper limit of normal (ULN) b. Aspartate aminotransferase >2 × ULN c. Total bilirubin >2 × ULN d. Alkaline phosphatase >2 × ULN e. Creatinine >1.5 × ULN f. Platelet count <100,000/mm3 g. Prothrombin time >1.2 × ULN h. Partial thromboplastin time >1.2 × ULN\n- Additional Exclusion Criteria for Participants in Cohort 3: Known immunocompromised status including participants who have undergone organ transplantation or who test positive at Screening for the human immunodeficiency virus (HIV); or who are at risk of pathogen reactivation if immunosuppressed, including participants who test positive at screening for hepatitis C virus antibody (anti-HCV), hepatitis C virus ribonucleic acid (HCV RNA), hepatitis B surface antigen (HBsAg) or hepatitis B core antibody (anti-HBc); or who have history of active tuberculosis or a positive tuberculosis blood test during screening. For participants with an indeterminate tuberculosis blood test result or positive tuberculosis test result, repeat testing is recommended.\n- Additional Exclusion Criteria for Participants in Cohort 3: Known allergy, sensitivity, or other contraindication to medications in the immunosuppression regimen in this protocol.\n- Additional Exclusion Criteria for Participants in Cohort 3: Any participant with an active infection (e.g., coronavirus disease 2019 [COVID-19]) at Screening or at the time of treatment that requires medical intervention. Participants may rescreen, or if screened eligible and an open surgical slot is available, may receive treatment after recovery.\n- Receipt of an experimental agent within 60 days or 5 half-lives prior to Screening or any time over the duration of this study.\n- Participation in an investigational study or investigational paradigm (e.g., exercise/physical activity, cognitive therapy, brain stimulation) within 60 days prior to Screening or any time over the duration of this study.\n- Presence of an implanted deep brain stimulation device, ventriculoperitoneal or other CSF shunt, or other implanted catheter.\n- Any history of gene therapy, RNA, or DNA targeted HD-specific investigational agents, such as antisense oligonucleotides (ASOs), cell transplantation, or any other experimental brain surgery.\n- Any contraindication to 3.0 Tesla MRI scans or lumbar punctures as per local guidelines.\n- Brain and spinal pathology that may interfere with the surgical delivery of AMT-130 or represents a significant neurologic comorbid disorder.\n- Any contraindication to lumbar puncture as per local guidelines.\n- Malignancy within 5 years of Screening, except for basal or squamous cell carcinoma of the skin or carcinoma in situ of the cervix that has been successfully treated."}

Endpoints

Primary endpoints

  • {"endpoint_text":"- Type and incidence of AEs","definition_or_measurement_approach":"Type and incidence will be recorded as adverse events (AEs) observed during the study (as stated: \"Type and incidence of AEs\")."}
  • {"endpoint_text":"- Change from baseline in vital signs, electrocardiogram (ECG) parameters, physical examinations, and neurological examinations","definition_or_measurement_approach":"Measured as change from baseline in vital signs, ECG parameters, physical and neurological examination findings."}
  • {"endpoint_text":"- Change from baseline in clinical chemistry and hematology safety laboratory tests","definition_or_measurement_approach":"Measured as change from baseline in specified clinical chemistry and hematology safety laboratory tests."}
  • {"endpoint_text":"- Change from baseline in routine urinalysis and CSF analysis","definition_or_measurement_approach":"Measured as change from baseline in routine urinalysis and cerebrospinal fluid (CSF) analyses."}
  • {"endpoint_text":"- Change over time in AAV5 vector shedding","definition_or_measurement_approach":"Measured as change over time in shedding of AAV5 vector (time-course assessment)."}
  • {"endpoint_text":"- Change over time in antibodies against AAV5, cytokines, ELISpot, astroglial activation (glial fibrillary acidic protein [GFAP]), and microglial activation (YKL-40)","definition_or_measurement_approach":"Measured as change over time in immune biomarkers: anti-AAV5 antibodies, cytokines, ELISpot results, GFAP and YKL-40 levels."}
  • {"endpoint_text":"- Prospective assessment of suicidality via the Columbia-Suicide Severity Rating Scale (C-SSRS)","definition_or_measurement_approach":"Prospective assessment using the Columbia-Suicide Severity Rating Scale (C-SSRS)."}
  • {"endpoint_text":"- Change from baseline to Day 14 and Month 1 in the MoCA","definition_or_measurement_approach":"Measured as change from baseline to Day 14 and Month 1 in the Montreal Cognitive Assessment (MoCA) score."}
  • {"endpoint_text":"- Change from baseline in edema, inflammation, volume loss and structural changes as measured by the following MRI pulse sequences: T1, T2, and diffusion magnetic resonance imaging (dMRI)","definition_or_measurement_approach":"Measured as change from baseline in MRI-derived metrics (T1, T2, and diffusion MRI) for edema, inflammation, volume loss and structural changes."}

Secondary endpoints

  • {"endpoint_text":"- Change over time in levels of AMT-130–derived vector DNA and miRNA expression in the CSF in Cohorts 1 and 2 through approval of CT-AMT-130-02 Protocol Amendment 6.0 Version 7.0","definition_or_measurement_approach":"Measured as change over time in levels of AMT-130–derived vector DNA and miRNA expression in CSF (Cohorts 1 and 2, per amendment/version stated)."}
  • {"endpoint_text":"- Change over time in levels of only AMT-130-derived vector DNA in Cohorts 1 and 2 post-approval, and throughout the trial in Cohort 3.","definition_or_measurement_approach":"Measured as change over time in AMT-130–derived vector DNA levels in CSF across specified cohorts and time periods."}

Recruitment

Planned Sample Size
17
Recruitment Window Months
120
Consent Approach
Written informed consent required: "Able and willing to provide written informed consent prior to the study and any study-related procedure." Participants are adults (25–65 years). Subject information and informed consent form documents are listed in trial documents (multiple ICF versions and a protocol synopsis with translations available). No assent process described.

Geography

Total Number Of Sites
2
Total Number Of Participants
15

Poland

Earliest CTIS Part Ii Submission Date
09-07-2024
Latest Decision Or Authorization Date
29-07-2024
Processing Time Days
20
Number Of Sites
2
Number Of Participants
10

Sites

Site Name
Mazowiecki Szpital Brodnowski Sp. z o.o.
Department Name
Interwencyjne Centrum Neuroterapii
Contact Person Name
Miroslav Zabek
Contact Person Email
zabek.cmc@gmail.com
Site Name
Wojskowy Instytut Medycyny Lotniczej
Department Name
Klinika Neurologii
Contact Person Name
Grzegorz Witkowski
Contact Person Email
gwitkowski@wiml.waw.pl

Sponsor

Primary sponsor

Full Name
uniQure biopharma B.V.
Organisation Type
Pharmaceutical company
Country Of Registered Address
Netherlands

Contract research organisations

Name
PPD Global Central Labs
Responsibilities
sponsorDuties codes: 4
Name
Medpace Inc.
Responsibilities
sponsorDuties code: 5
Name
Everest Clinical Research Corporation
Responsibilities
sponsorDuties code: 11
Name
Propharma Group The Netherlands B.V.
Responsibilities
sponsorDuties codes: 12
Name
Precision For Medicine Inc.
Responsibilities
sponsorDuties codes: 4
Name
Almac Clinical Services Limited
Responsibilities
sponsorDuties code: 14

Third parties

  • {"country":"Belgium","full_name":"PPD Global Central Labs","duties_or_roles":"sponsorDuties codes: 4","organisation_type":"Pharmaceutical company"}
  • {"country":"Italy","full_name":"Aptuit (Verona) S.r.l.","duties_or_roles":"sponsorDuties codes: 4","organisation_type":"Pharmaceutical company"}
  • {"country":"Netherlands","full_name":"Propharma Group The Netherlands B.V.","duties_or_roles":"sponsorDuties codes: 12","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Gray Consulting Inc.","duties_or_roles":"sponsorDuties code: 15 (patient travel)","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Precision For Medicine Inc.","duties_or_roles":"sponsorDuties codes: 4","organisation_type":"Pharmaceutical company"}
  • {"country":"Netherlands","full_name":"ClearPoint Neuro, Inc","duties_or_roles":"sponsorDuties code: 15 (Clinical supplies)","organisation_type":"Industry"}
  • {"country":"Canada","full_name":"Everest Clinical Research Corporation","duties_or_roles":"sponsorDuties code: 11","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Precision For Medicine Inc.","duties_or_roles":"sponsorDuties codes: 4","organisation_type":"Pharmaceutical company"}
  • {"country":"United Kingdom","full_name":"B.Braun Medical LLC","duties_or_roles":"sponsorDuties code: 15 (Clinical supplies)","organisation_type":"Industry"}
  • {"country":"United States","full_name":"Medpace Inc.","duties_or_roles":"sponsorDuties code: 5","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Inseption Group LLC","duties_or_roles":"sponsorDuties code: 6","organisation_type":"Pharmaceutical company"}
  • {"country":"United Kingdom (Northern Ireland)","full_name":"Almac Clinical Services Limited","duties_or_roles":"sponsorDuties code: 14","organisation_type":"Pharmaceutical company"}
  • {"country":"Denmark","full_name":"Unilabs A/S","duties_or_roles":"sponsorDuties codes: 4","organisation_type":"Laboratory/Research/Testing facility"}
  • {"country":"United Kingdom","full_name":"Ixico Technologies Limited","duties_or_roles":"sponsorDuties codes: 13; 15 (MRI imaging)","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Arup Laboratories Inc.","duties_or_roles":"sponsorDuties codes: 4","organisation_type":"Laboratory/Research/Testing facility"}

Investigational products

Investigational Product Name
ifezuntirgene inilparvovec (AMT-130; AAV5-miHTT)
Active Substance
IFEZUNTIRGENE INILPARVOVEC
Modality
Gene therapy
Routes Of Administration
INTRACEREBRAL USE
Route
Intracerebral
Authorisation Status
Authorised
Orphan Designation
Yes
Starting Dose
6 × 10e12 gc/participant
Dose Levels
6 × 10e12 gc/participant | 6 × 10e13 gc/participant
Frequency
Single administration (one-time intra-striatal administration)
Maximum Dose
6 × 10e13 gc/participant
Dose Escalation Increase
Initial: 6 × 10e12 gc/participant; Following: 6 × 10e13 gc/participant

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