A Randomized, Double-Blind, Placebo-Controlled Trial of IkT-148009 in Untreated Parkinson's Disease

NCT ID: NCT05424276

Last Updated: 2025-11-19

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE2
• Total Enrollment: 137 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2023-05-15
• Study Completion Date: 2025-09-13

Brief Summary

This study investigates the safety and tolerability of drug IkT-148009 in untreated Parkinson's disease volunteers (30 to 80 years old). It also looks at the pharmacokinetics of IkT-148009 in the body and evaluates the effect of IkT-148009 on motor and non-motor features of the disease. This 12 week study is designed to be 3:1 randomized across 3 doses of IkT-148009 or placebo. Each participant will self-administer one of 3 doses or placebo of IkT-148009 once daily (QD) with food for 12 weeks. For more information, visit our website: www.the201trial.com

Detailed Description

This is a 12-Week, randomized, double-blind, multi-center, placebo-controlled dose-ranging clinical trial of three IkT 148009 doses in patients with untreated PD designed to assess safety, tolerability, and pharmacokinetics of IkT-148009, an oral, once daily c-Abl tyrosine kinase inhibitor. Secondary and exploratory assessments will evaluate the effect of IkT-148009 on motor and non-motor features of the disease. 120 participants are anticipated to be enrolled at up to 34 sites across the US.

Participants will undergo screening to evaluate their eligibility to participate in the study to include evaluation of Parkinson's diagnosis, vital signs, blood chemistry, hematology and urinalysis and complete listing of concomitant medications. An Enrollment Authorization Committee (EAC) will be responsible for reviewing screening data and confirming the eligibility and suitability of participants. Those selected will be enrolled and randomized to one of three active IkT-148009 arms (50/100/200 mg) or a placebo arm (1:1:1:1). All clinical staff, study investigators, and participants will be blinded to study assignments throughout the trial.

A Data Safety Monitoring Committee (DSMB) will evaluate all available safety, tolerability, and PK and Parkinson's disease-related data for each cohort on a monthly to quarterly basis. Adverse event reporting will be evaluated in real-time.

Conditions

Parkinson Disease

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: TRIPLE

Study Groups

50mg IkT-148009 (risvodetinib)

This arm consisted of participants treated with the 50mg dose of risvodetinib.

Group Type: EXPERIMENTAL

IkT-148009 (risvodetinib)

Intervention Type: DRUG

Oral administration gelatin capsule

100mg IkT-148009 (risvodetinib)

This arm consisted of participants treated with the 100mg dose of risvodetinib.

Group Type: EXPERIMENTAL

IkT-148009 (risvodetinib)

Intervention Type: DRUG

Oral administration gelatin capsule

200mg IkT-148009 (risvodetinib)

This arm consisted of participants treated with the 200mg dose of risvodetinib.

Group Type: EXPERIMENTAL

IkT-148009 (risvodetinib)

Intervention Type: DRUG

Oral administration gelatin capsule

Placebo

This arm consisted of participants treated with placebo.

Group Type: PLACEBO_COMPARATOR

Placebo

Intervention Type: DRUG

Oral administration gelatin capsule

Interventions

IkT-148009 (risvodetinib)

Oral administration gelatin capsule

Intervention Type: DRUG

Placebo

Oral administration gelatin capsule

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

1. Participants who are diagnosed with PD consistent with UK Brain Bank criteria and MDS Research Criteria; must include bradykinesia with sequence effect and motor asymmetry.

2. Receiving no anti-parkinsonian therapy

3. Modified Hoehn/Yahr Stage < 3.0

4. Montreal Cognitive Assessment ≥ 24

5. Patient expected to be able to participate in trial without need for additional anti-parkinsonian therapy

Sex and Contraceptive/Barrier Requirements:

1. Male participants must agree to practice an acceptable method of highly effective birth control from the screening visit, while on study and for 30 days after receiving the last dose of study drug. Highly effective methods of birth control include sexual abstinence, vasectomy, or a condom with spermicide (men) in combination with their partner's highly effective method.

2. Female participants of childbearing potential and male participants with female partners of childbearing potential must agree to either remain abstinent or use adequate and reliable contraception throughout the study and at least 30 days after the last dose of study drug has been taken.

Informed Consent:

1. Capable of giving signed ICF as described in Appendix 1 which includes compliance with the requirements and restrictions listed in the ICF and in this protocol.

Other Inclusions:

1. Approved as an appropriate and suitable candidate by the EAC.

Exclusion Criteria

1. Diagnosis/suspicion of secondary or atypical parkinsonism

2. Previous procedure or surgery for PD, or anticipation of these during the study

3. High likelihood of needing anti-parkinsonian treatment over the study period, in the opinion of the investigator

4. Clinically significant orthostatic hypotension

5. Clinically significant hallucinations requiring antipsychotic use in the 12 months prior to Screening

6. Clinically significant medical, surgical, psychiatric, or laboratory abnormalities in the judgement of the treating investigator or the EAC

Prior/Concomitant Therapy:

1. Past treatment with levodopa, dopaminergic agonists, monoamine oxidase-B inhibitors, supplements containing levodopa (i.e. Mucana pruriens), or A2A antagonists for more than 28 days, or treatment with any of these medications or supplements within 28 days prior to screening

2. Past treatment with irreversible monoamine oxidase-B inhibitors (e.g., selegiline) for more than 28 days; must be discontinued for at least 90 days before screening

3. Currently receiving moderate or strong Cytochrome P450 (CYP) 3A4/5 inducers or CYP3A4/5 inhibitors (except for topical administration)

4. Currently receiving any antipsychotic, metoclopramide, reserpine, or amphetamine.

Prior/Concurrent Clinical Study Experience:

1. Current participation in another investigational clinical trial and/or receipt of any investigational medication within 90 days prior to screening

2. Previous randomization into this or another IkT-148009 study

Diagnostic Assessments:

1. Active suicidal ideation within one year prior to screening visit, as determined by the Columbia Suicide Rating Scale (answer of "yes" on question 4 or 5)

2. Current diagnosis or history of substance abuse (excluding nicotine or caffeine) by Diagnostic and Statistical Manual of Mental Disorders (DSM)-5 criteria

3. Medical or recreational use of marijuana in the 3 months prior to the screening visit

4. Any social or behavioral reason that would preclude completion of the study, in the judgement of the investigator

5. Any skin condition that would interfere with obtaining adequate samples

6. Evidence of advanced, age-related macular degeneration (neovascular or geographic atrophy) or intermediate macular degeneration as defined by Beckman classification (Large drusen > 125 um and/or any AMD pigmentary abnormalities). Evidence of retina/choroid neovascularization from any cause. Evidence of central serous retinopathy.

7. Abnormal amylase and/or lipase at screening (may be repeated during screening period)

8. Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) levels greater than 2.5 times the upper limit of normal (ULN)

9. Significant renal impairment as determined by the following criteria:

• Creatinine clearance (CrCL) less than or equal to 60 mL/min for subjects < 65 years of age
• Creatine clearance (CrCL) greater than or equal to 55 mL/min and the absence of proteinuria or hematuria for subjects ≥ 65 years of age

10. Currently lactating, pregnant or planning on becoming pregnant during the study

• Minimum Eligible Age: 30 Years
• Maximum Eligible Age: 80 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

ABLi Therapeutics, Inc.

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Milton Werner, PhD

Role: PRINCIPAL_INVESTIGATOR

ABLi Therapeutics, Inc.

Locations

Neurology

Scottsdale, Arizona, United States

Neurology

Little Rock, Arkansas, United States

Neurology

Reseda, California, United States

Neurology

Stamford, Connecticut, United States

Neurologist

Boca Raton, Florida, United States

Neurology

Miami, Florida, United States

Neurology

Naples, Florida, United States

Neurology

Tampa, Florida, United States

Neurology

Tampa, Florida, United States

Neurology

Foxborough, Massachusetts, United States

Neurology

South Dartmouth, Massachusetts, United States

Neurology

Farmington Hills, Michigan, United States

Neurology

Golden Valley, Minnesota, United States

Neurology

West Long Branch, New Jersey, United States

Neurology

Durham, North Carolina, United States

Neurology

Raleigh, North Carolina, United States

Neurology

Columbus, Ohio, United States

Neurology

Tulsa, Oklahoma, United States

Neurology

Portland, Oregon, United States

Neurology

Port Royal, South Carolina, United States

Neurology

Memphis, Tennessee, United States

Neurology

Nashville, Tennessee, United States

Neurology

Frisco, Texas, United States

Neurology

Houston, Texas, United States

Neurology

Round Rock, Texas, United States

Neurology

Kirkland, Washington, United States

Neurology

Madison, Wisconsin, United States

Neurology

Milwaukee, Wisconsin, United States

Countries

United States

Provided Documents

Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

IkT-148009-201

Identifier Type: -

Identifier Source: org_study_id