GM2 GangliosidosisPhase 2PRISMANCT07399704
A Study to Evaluate the Safety and Efficacy of Nizubaglustat (AZ-3102) in Patients With GM2 Gangliosidosis or Niemann-Pick Type C Disease
A Phase 2 study testing AZ-3102 in people with GM2 Gangliosidosis and Niemann-Pick Type C Disease, run by Azafaros B.V. at 3 sites in Brazil.
Trial summary
This open-label study aims to gather long-term safety, tolerability, PK, biomarker, and clinical efficacy data relating to daily administration of Nizubaglustat in participants previously enrolled in the Phase 2 RAINBOW study (Cohort 1). Read more about this study
- Who is it for?
- Ages 12 years and older
- Conditions the study is for
- GM2 Gangliosidosis, Niemann-Pick Type C Disease
- What is being tested?
- AZ-3102
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 21 participants
- Where
- 3 sitesBrazil
- Study dates
- 4 Feb 2026to 30 Jun 2027
- Phase
- Phase 2
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 12 years and older
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Cohort 1 (NPC and GM2 patients):
- Have been randomized into Phase 2 Study AZA-001-5A2-01.
- OR
- Cohort 2 (NPC patients):
- Be male or female aged ≥12 years
- Have a genetically-confirmed diagnosis of NPC disease
Show all 10Show fewer
- Have received full-dose Miglustat treatment for at least 12 months and experienced disease stabilization or worsening with treatment over the 2 previous clinic visits. Patients experiencing clinical improvement with Miglustat over the preceding 3 months should not be considered for this study.
- Wish to change treatment to Nizubaglustat for their NPC disease.
- Participants from Phase 2 Study AZA-001-5A2-01 (RAINBOW) who transitioned to Miglustat may be eligible for Cohort 2 if they meet all other criteria.
- Participation is supported and deemed beneficial by the Principal Investigator. Be willing and able to be evaluated for all protocol assessments. The participant, parent, and/or legal guardian can read, understand, and sign the informed consent form. Where appropriate, assent will also be sought for participants who have not reached the age of majority.
Who cannot join
- A positive serum pregnancy test (only tested for women of childbearing potential).
- Female planning to breastfeed during the study.
- Any medical event/condition that prevents participation in the study based on the judgment of the Principal Investigator.
- Participation in another interventional or non-interventional study or early access program.
Trial locations and contacts
3 sites in 1 country.
Brazil3 sites
Associação Hospitalar de Prot à Infância Dr. Raul Carneiro
Água Verde, Curitiba, 80250-060
Hospital de Clinicas de Porto Alegre
Porto Alegre, Rio Grande do Sul, 90035-903
Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira
Rio de Janeiro, 22250
About this study
Official title: Open-label Study to Evaluate the Long-term Safety, Tolerability, Pharmacokinetics and Efficacy of Nizubaglustat (AZ-3102) in Patients With GM2 Gangliosidosis or Niemann-Pick Type C Disease, With or Without Previous Administration of Miglustat
This open-label study aims to gather long-term safety, tolerability, PK, biomarker, and clinical efficacy data relating to daily administration of Nizubaglustat in participants previously enrolled in the Phase 2 RAINBOW study (Cohort 1). In addition, the study aims to assess safety, clinical, and biochemical impact of transitioning NPC disease patients to Nizubaglustat after prior treatment with stable, full-dose Miglustat (Cohort 2).
Read the detailed description
This is a multicenter, open-label study to assess the safety, tolerability, PK, PD, and efficacy of Nizubaglustat in male or female patients with late-infantile or juvenile onset GM2 gangliosidosis or NPC disease in two cohorts:
- Cohort 1: Patients who previously took part in Phase 2 Study AZA-001-5A2-01 (RAINBOW) and wish to continue in this open-label study
- Cohort 2: Approximately 10 patients with NPC disease, aged ≥12 years who received full-dose Miglustat for more than 12 months, have stable or worsening disease over the 2 previous clinic visits, and who wish to stop Miglustat treatment and transition to Nizubaglustat.
- Conditions
- GM2 Gangliosidosis, Niemann-Pick Type C Disease
- Being tested
- AZ-3102
- Keywords
- Nizubaglustat
- Medical subject headings
- Gangliosidoses, GM2, Niemann-Pick Disease, Type C
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
AZ-3102Drug
Daily oral intake of AZ-3102 dispersible tablets
| Study group | Role | What they receive |
|---|---|---|
| All patients | Experimental | Arms (both cohorts 1 and 2): Nizubaglustat (AZ-3102) Receives: Drug: AZ-3102 |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change from baseline in treatment-emergent adverse events (TEAEs)
Incidence and severity of all Adverse Events related to study drug treatment, study discontinuation or death
Measured: Through study completion, an average of 4 years
Change from baseline in electrocardiogram (ECG)
ECG read out Normal, Abnormal, Not Clinically Significant, Abnormal, Clinically Significant and Not Done.
Measured: Through study completion, an average of 4 years
Change from baseline in seizures
Seizure duration (minutes) as per the seizure diary.
Measured: Through study completion, an average of 4 years
Change from baseline in seizures
Seizure frequency (number) as per seizure diary.
Measured: Through study completion, an average of 4 years
Maximum observed plasma concentration (Cmax)
Measured: Baseline , Month 1 (Cohort 2 only) and Month 6
Time to Cmax (Tmax)
Measured: Baseline, Month 1 (Cohort 2 only) and Month 6
Concentration at trough (Ctrough)
Measured: Baseline, Month 1 (Cohort 2 only) and Month 6
Area under the plasma concentration-time curve from the time of dosing (zero) to 24 hours post-dose
Measured: Baseline, Month 1 (Cohort 2 only) and Month 6
Secondary outcomes (5)
Change from Baseline in the concentrations of Glucosylceramide (GlcCer) C16:0; C18:0
Measured: Baseline, Month 1 (Cohort 2 only) and Month 6
Change from Baseline in the concentrations of Neurofilament light chain (NfL)
Measured: Through study completion, an average of 4 years
For GM2 gangliosidosis patients: Change from Baseline in the concentrations of Monosialoganglioside GM2 (GM2)
Measured: Through study completion, an average of 4 years
For GM2 gangliosidosis patients: Change from Baseline in the concentrations of Lyso-monosialoganglioside GM2
Measured: Through study completion, an average of 4 years
For NPC disease patients: Change from Baseline in the concentrations of N-palmitoyl-O-phosphocholine-serine (PPCS)
Measured: Through study completion, an average of 4 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Feb 2026
- Study start4 Feb 2026
- Primary completion30 Jun 2027 (estimated)
- Study completion30 Jun 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for GM2 GangliosidosisStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 21 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Azafaros B.V.
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07399704
- Sponsor's protocol ID
- AZA-001-5A2-02
- Acronym
- PRISMA
- Status last verified
- Oct 2026
- First submitted
- 17 Dec 2025
- Last updated
- 21 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No