- To evaluate the safety and tolerability of four oral dose levels of LTI-291 following multiple administrations in healthy middle-aged to elderly subjects. - To characterize the plasma and cerebrospinal fluid (CSF) pharmacokinetics (PK) of LTI-291…
ID
Source
Brief title
Condition
- Movement disorders (incl parkinsonism)
Synonym
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
- Safety and tolerability endpoints
- Pharmacokinetic endpoints
- Pharmacodynamic endpoints
Secondary outcome
- Wet biomarker measurements
- Genotyping
Background summary
Approximately 10% of patients with clinically diagnosed Parkinson*s disease,
Lewy Body Dementia, or Diffuse Lewy Body disease
have a GBA1 mutation. More recently, it has become clear that even carrying one
mutated allele of GBA1 significantly increases the
lifetime risk of developing parkinsonism. Existing treatments are symptomatic
in nature, and do not modify the underlying disease
progression. For patients with GBA-associated parkinsonism (GBA-AP), some
approaches eg DBS and anti-cholinergic agents may
be contra-indicated due to the risk of worsened cognitive decline (Sasagasako
et al., 1994; Thaler et al., 2017). Therapies targeting
underlying pathogenesis could slow disease progression in this population.
Preclinical studies demonstrate that LTI-291 penetrates the blood brain
barrier, to access the GCase within the brain and central nervous system (CNS).
Activation of GCase in the periphery or CNS may be measured by a reduction in
the levels of the GCase substates GluCer or GluSph. Several lines of evidence
suggest that activation of GCase enzymatic activity could provide therapeutic
benefit to patients carrying a heterozygous mutation in the GBA1 gene, and that
activation of enzyme via allosteric modulation, as with LTI-291, represents a
novel, first-in-class potential treatment for patients with GBA-AP.
Study objective
- To evaluate the safety and tolerability of four oral dose levels of LTI-291
following multiple administrations in healthy middle-aged to elderly subjects.
- To characterize the plasma and cerebrospinal fluid (CSF) pharmacokinetics
(PK) of LTI-291 following multiple oral administrations in healthy middle-aged
to elderly subjects.
- To evaluate the PD of LTI-291 following multiple oral administrations in
healthy middle-aged to elderly subjects using NeuroCart assessments.
- To evaluate the PD of LTI-291 following multiple oral administrations in
healthy middle-aged to elderly subjects using biomarker assessments (e.g.
GluCer and GluSph) in plasma and isolated peripheral blood mononuclear cells
(PBMCs) and GluCer in Cerebrospinal Fluid (CSF).
Study design
This will be a randomized, double-blind, placebo-controlled, multiple ascending
dose study in 40 healthy adults, aged 50-75 years of age. The following dose
levels will be investigated: 3 mg, 10 mg, 30 mg and 60 mg. Each cohort consists
of 10 subjects per dose group. Subjects are randomized to receive LTI-291 or
placebo in a 8:2 ratio. Subjects will receive the compound once per day, during
14 consecutive days.
Intervention
LTI-291 capsules (API-in-capsule) dosed at 3mg, 10mg, 30mg or 60 mg and
matching capsules containing 15 mg of Avicel as placebo.
Study burden and risks
This will be the second study in which subjects will be administered LTI-291,
the safety information of the single ascending dose study will be taken into
consideration for this multiple ascending dose study. This will be the first
time that subjects will be administered multiple doses of LTI-291. Based on a
review of nonclinical safety findings (including daily oral administration of
high LTI-291 doses to rats and dogs for 28
days), this multiple-dose protocol is expected to be reasonably safe to
initiate and conduct as designed. There is an acceptably-large
margin between proposed clinical doses and exposures and animal-study NOAELS,
and the planned sentinel approach as well as
protocol-specified clinical monitoring are expected to adequately ensure the
safety of human subjects.
Blackstone St 19 19
Cambridge MA 02139
US
Blackstone St 19 19
Cambridge MA 02139
US
Listed location countries
Age
Inclusion criteria
1. Signed informed consent prior to any study-mandated procedure
2. Healthy male or female subjects of non-childbearing potential (defined as postmenopausal with amenorrhea for at least 12 months) or permanently sterilized (e.g., tubal occlusion, hysterectomy, bilateral salpingectomy); or otherwise be incapable of pregnancy, 50 to 75 years of age (inclusive) at screening.
3. Body mass index (BMI) between 18 and 32 kg/m2, inclusive, and with a minimum weight of 50 kg at screening.
4. All males must practice effective contraception and abstain from sperm donation during the study and be willing and able to continue contraception and abstention from sperm donation for at least 90 days after their last dose of study treatment.
5. Has the ability to communicate well with the Investigator in the Dutch language and willing to comply with the study restrictions
Exclusion criteria
1.Evidence of any active or chronic disease or condition that could interfere with, or for which the treatment of might interfere with, the conduct of the study, or that would pose an unacceptable risk to the subject in the opinion of the investigator (following a detailed medical history, physical examination, vital signs (systolic and diastolic blood pressure, pulse rate, body temperature), 12-lead electrocardiogram (ECG)). Minor deviations of laboratory values from the normal range may be accepted, if judged by the Investigator to have no clinical relevance.
2. Clinically significant abnormalities, as judged by the investigator, in laboratory test results (including hepatic and renal panels, complete blood count, chemistry panel and urinalysis). In the case of uncertain or questionable results, tests performed during screening may be repeated before randomization to confirm eligibility or judged to be clinically irrelevant for healthy subjects.
3. Any contra-indication for undergoing a lumbar puncture procedure (e.g. anatomical variations or local skin infection).
4. Positive Hepatitis B surface antigen (HBsAg), Hepatitis C antibody (HCV Ab), or human immunodeficiency virus antibody (HIV Ab) at screening.
5. Systolic blood pressure (SBP) greater than 150 or less than 90 mm Hg, and diastolic blood pressure (DBP) greater than 95 or less than 50 mm Hg at screening or baseline.
6. Abnormal findings in the resting ECG at screening defined as:
a. QTcF > 450 msec for males or > 470 msec for females;
b. Notable resting bradycardia (HR < 40 bpm) or tachycardia (HR > 100 bpm);
c. QRS > 120 msec:
d. Personal or family history of congenital long QT syndrome or sudden death;
e. ECG with QRS and/or T wave judged to be unfavorable for a consistently accurate QT measurement (e.g., neuromuscular artefact that cannot be readily eliminated, arrhythmias, indistinct QRS onset, low amplitude T wave, merged T- and U-waves, prominent U waves);
f. Evidence of atrial fibrillation, atrial flutter, complete branch block, Wolf-Parkinson-White Syndrome, or cardiac pacemaker.
7. Use of any medications (prescription or over-the-counter [OTC]) that is suspected to interfere or interact with the study medication, within 14 days of study drug administration, or less than 5 half-lives (whichever is longer). Exceptions are paracetamol (up to 4 g/day) and ibuprofen (up to 1g/day). Other exceptions will only be made if the rationale is clearly documented by the investigator. No exceptions will be made for:
a. Any known inducer or inhibitor of CYP3A4, CYP1A2 or CYP2D6;
b. Any drug known to inhibit blood coagulation.
8. Use of any vitamin, mineral, herbal, and dietary supplements within 7 days of study drug administration, or less than 5 half-lives (whichever is longer). Exceptions will only be made if the rationale is clearly documented by the investigator.
9. Participation in an investigational drug or device study within 3 months prior to first dosing.
10. History of abuse of addictive substances (alcohol, illegal substances) or current use of more than 21 units alcohol per week, drug abuse, or regular user of sedatives, hypnotics, tranquillizers, or any other addictive agent.
11. Positive test for drugs of abuse at screening or pre-dose.
12. Use of tobacco or nicotine products within 14 days before the first dose administration.
13. Demonstrates an excess in xanthine consumption (more than eight cups of coffee or equivalent per day)
14. Any confirmed significant allergic reactions (urticaria or anaphylaxis) against any drug, or multiple drug allergies (non-active hay fever is acceptable).
15. Loss or donation of blood over 500 mL within three months (males) or four months (females) prior to screening or intention to donate blood or blood products during the study.
16. If a woman, pregnant, or breast-feeding, or planning to become pregnant during the study.
17. Any known factor, condition, or disease that might interfere with treatment compliance, study conduct or interpretation of the results such as drug or alcohol dependence or psychiatric disease.
Design
Recruitment
Medical products/devices used
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
In other registers
Register | ID |
---|---|
EudraCT | EUCTR2017-002234-22-NL |
CCMO | NL62048.056.17 |
OMON | NL-OMON24313 |