ENERGY 2: Evaluation of the Efficacy and Safety of INZ-701 in Infants With ENPP1 Deficiency

Trial statusRecruiting
Trial phasePhase 3
Trial typeInterventional
Biological sexAll
Age0-1
SponsorInozyme Pharma

About this trial

The primary purpose of ENERGY 2 (Study INZ701-105) is to assess the efficacy and safety of INZ-701 in infants with ENPP1 Deficiency.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Infant aged ≤ 1 year at the time of enrollment.

Confirmed diagnosis of ENPP1 deficiency, based on genetic testing.

Clinical features consistent with generalized arterial calcification of infancy (GACI) (e.g., vascular calcification or cardiac involvement).

Medically stable to participate in a 52-week treatment study.

Disqualifiers

Receiving end-of-life or hospice care.

Prior treatment with INZ-701, unless received through an approved expanded access program.

Concurrent participation in another interventional clinical trial.

Planned major surgery during the study period that would interfere with study participation.

Trial design

Design model

Single group

Treatments tested in this trial

  • INZ-701

    Drug

    Recombinant fusion protein that contains the extracellular domains of human ENPP1 coupled with an Fc fragment from an immunoglobulin gamma-1 (IgG1) antibody.

Treatment groups

12 Participants
are divided into 1 treatment group
Group A: INZ-701Experimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

To determine if INZ-701 increases inorganic pyrophosphate (PPi) levels

For each subject, their change from baseline in Plasma Inorganic Pyrophosphate (PPi) concentration will be assessed.

Time frame
52 weeks (Baseline through Week 52)
2

To determine if INZ-701 increases overall survival

For each subject, their change in overall survival based on time from date of birth to event of all-cause mortality will be assessed.

Time frame
52 weeks (Baseline through Week 52)

Secondary outcomes

1

To determine if INZ-701 prevents decline in cardiac ejection fraction

For each subject, their change from baseline in left ventricular ejection fraction will be assessed via echocardiography.

Time frame
52 weeks (Baseline through Week 52)
2

To determine if INZ-701 prevents heart failure

For each subject, their incidence of heart failure will be assessed.

Time frame
52 weeks (Baseline through Week 52)
3

To determine if INZ-701 attenuates progression of arterial calcification

For each subject, their change from baseline in vascular calcification in the coronary arteries and aorta will be examined via CT scan.

Time frame
52 weeks (Baseline through Week 52)

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Inozyme Pharma

Lead sponsor

BioMarin Pharmaceutical

Collaborator