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Phase 2 Study Evaluating the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Oral AZ-3102 in Patients With GM2 Gangliosidosis or Niemann-Pick Type C Disease

Randomized, Double Blind, Placebo Controlled, Multicenter, 12 Weeks Phase 2 Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Oral AZ-3102 in Patients With GM2 Gangliosidosis or Niemann-Pick Type C Disease

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05758922
Acronym
RAINBOW
Enrollment
13
Registered
2023-03-08
Start date
2023-04-24
Completion date
2026-05-05
Last updated
2026-05-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

GM2 Gangliosidosis, Niemann-Pick Disease, Type C

Brief summary

This phase 2 is a randomized, double-blind, placebo controlled, 12 weeks study with daily oral administration of AZ-3102 aiming to evaluate the safety and pharmacokinetic (PK) profile in GM2 Gangliosidosis and Niemann-Pick type C disease (NP-C) patients. After approval by the country health authorities, a double-blind extension period was proposed to the patients who complete the 12-week study.

Interventions

DRUGAZ-3102 (Dose 1)

Pharmaceutical form: capsule Route of administration: oral

DRUGPlacebo

Pharmaceutical form: capsule Route of administration: oral

DRUGAZ-3102 (Dose 2)

Pharmaceutical form: capsule Route of administration: oral

Sponsors

Azafaros A.G.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
12 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male and female patients aged above 12 years old at informed consent signature. * GM2 patients : Genetically and biochemically confirmed diagnosis of Tay-Sachs or Sandhoff disease. * NP-C patients : Genetically confirmed diagnosis of NP-C. * NP-C patients : Miglustat-naïve patients unwilling or unable to take miglustat, OR, patients who have discontinued miglustat because of confirmed safety/tolerability issues. Miglustat must have been discontinued at least 1 month prior to Baseline visit. * Total SARA score ≥ 1 at Baseline. * A male participant with a female partner of childbearing potential is eligible if he agrees to follow the contraceptive guidance. * If a female participant is a WOCBP and is having a male partner, she must agree to follow the contraceptive guidance. * Willing and able to complete protocol assessments. * Parent and/or legal guardian is able to read, understand, and sign the informed consent. Where appropriate, assent will also be sought for patients who have not reached the age of majority or who are not able to sign the consent form.

Exclusion criteria

* Any abnormal conditions at baseline visit which, in the opinion of the PI; could interfere with study assessments (e.g., severe infection). * History of medical conditions other than GM2 gangliosidosis/NP-C that, in the opinion of the PI; would confound scientific rigor or interpretation of results. * Presence of another inherited neurologic disease. * The dose of anti-epileptic treatment(s) was not stable and/or a new anti-epileptic treatment (drug or procedure) was prescribed during the last month before baseline. * Total bilirubin \>2 x ULN (isolated bilirubin \>2 x ULN is acceptable if bilirubin is fractionated and direct bilirubin is \<35%). * Platelet count \< 100 x 10\^9/L. * Presence of moderate or severe renal impairment. * Prior participation in a clinical study with an investigational drug within 3 months prior to Baseline. * Patient with a positive serum pregnancy test (tested only for women of childbearing potential) at baseline. * Breast feeding ongoing at baseline or planned during the study. * ECG with an average of triplicate QTcF interval \> 440 msec. * Received treatment with N-Acetyl-Leucine, gene therapy, stem cell transplantation, or with any other azasugars (iminosugars) compound with similar mechanism of action within 3 months before baseline (except for miglustat for which it is 1 month). * Any known allergy to azasugars or any excipients. * Evidence of suicidal ideation with intent (Type 4-5) on the Columbia Suicide Severity Rating Scale (C-SSRS) at Screening. Only in patients judged by the PI cognitively capable to understand the concept of suicide.

Design outcomes

Primary

MeasureTime frame
Safety/tolerability: Incidence and severity of treatment emergent adverse eventsThrough study completion, up to Week 12
Assessment of pharmacokinetic (PK) parameters in plasma: CmaxThrough study completion, up to Week 12
Assessment of PK parameters in plasma: TmaxThrough study completion, up to Week 12
Assessment of PK parameters in plasma: AUC0-24hConcentration versus time curve calculated from time 0 to 24 hours (AUC0-24h)

Countries

Brazil

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 15, 2026