Evidence map›Paper›PMID 41770448›Full record

ReviewJournal of endocrinological investigation2026

Optimizing diagnosis and management of patients with ENPP1 deficiency: an expert opinion.

Irene Bruno, Luisa De Sanctis, Nadia Edvige Foligno, Federica Giambò, Stefano Mora, Mattia Parolin, Giuseppe Vezzoli

Abstract readReview
In one paragraph

Review in Journal of endocrinological investigation, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Irene BrunoMetabolic and Rare Diseases Unit, IRCCS Burlo Garofolo, Trieste, Italy.ORCID http://orcid.org/0000-0002-2437-6198
Luisa De SanctisPediatric Endocrinology, Regina Margherita Children's Hospital, Turin, Italy.ORCID http://orcid.org/0000-0003-2113-6196
Nadia Edvige FolignoNephrology and Dialysis Unit, IRCCS San Raffaele Hospital, Vita Salute San Raffaele University, via Olgettina 60, Milan, 20132, Italy.ORCID http://orcid.org/0000-0001-9536-9254
Federica GiambòNephrology and Dialysis Unit, IRCCS San Raffaele Hospital, Vita Salute San Raffaele University, via Olgettina 60, Milan, 20132, Italy.ORCID http://orcid.org/0000-0003-3033-627X
Stefano MoraLaboratory of Pediatric Endocrinology, Department of Pediatrics, IRCCS San Raffaele Hospital, Milan, Italy.ORCID http://orcid.org/0000-0002-4781-6715
Mattia ParolinPediatric Nephrology, Dialysis and Transplantation Unit, University Hospital, Padova, Italy.ORCID http://orcid.org/0000-0003-0887-9526
Giuseppe VezzoliNephrology and Dialysis Unit, IRCCS San Raffaele Hospital, Vita Salute San Raffaele University, via Olgettina 60, Milan, 20132, Italy. vezzoli.giuseppe@hsr.it.ORCID http://orcid.org/0000-0003-4481-5693

Funding

Inozyme Pharma Not applicable
6 · The paper itself

Abstract

purposeEctonucleotide pyrophosphate/phosphodiesterase family member 1 (ENPP1) deficiency is a rare genetic disorder caused by loss-of-function ENPP1 gene mutations. Characterized by abnormally low circulating inorganic pyrophosphate concentrations, bone hypomineralization, soft tissue calcification, and arterial stenosis, ENPP1 deficiency is associated with a phenotypic spectrum that includes generalized arterial calcification of infancy type 1 (GACI1) and autosomal recessive hypophosphatemic rickets type 2 (ARHR2). Despite phenotypic differences, patients with GACI1 and ARHR2 have a marked, lifelong physical and emotional burden, with a negative impact on quality of life.

methodsA scientific board, comprising seven specialist physicians (endocrinologists, nephrologists, and pediatricians) practicing in Italy, held two virtual meetings to exchange knowledge regarding real-world clinical experience of GACI1 and ARHR2 using case examples, and to discuss strategies on how to increase disease awareness and optimize the diagnosis and management of these patients.

resultsFive real-world clinical cases are described. The specialist physicians also provide guidance for optimizing the management pathway for patients with ENPP1 deficiency. Early identification of the clinical signs of disease, in combination with comprehensive diagnostic and follow-up testing, is essential for effective patient management.

conclusionEarly and accurate identification of ENPP1 deficiency by healthcare providers and comprehensive diagnostic testing is essential for the effective management of patients with GACI1 and ARHR2. Consistent follow-up is key to preventing complications and adverse outcomes. Although treatment options are limited, novel therapies are currently under clinical development.

Indexed as

Familial Hypophosphatemic RicketsPhosphoric Diester HydrolasesPyrophosphatasesCase Reports as TopicChildDisease ManagementFemaleHumansMaleMutationVascular Calcificationectonucleotide pyrophosphatase phosphodiesterase 1Phosphoric Diester HydrolasesPyrophosphatasesAutosomal recessive hypophosphatemic rickets type 2Ectopic calcification disordersENPP1 deficiencyGeneralized arterial calcification of infancy type 1Patient journey

Identifiers

PMID41770448
PMCPMC13627197

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.