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14th International Hyperoxaluria Workshop 

June 23-24, 2023

Perugia, Sala dei Notari

The 14th International Hyperoxaluria Workshop is recognized globally as the largest professional event in which leading stakeholders come together to explore clinical advances, cultural trends, and current research outcomes that will inform our work and provide better care to those facing the challenges of hyperoxaluria diseases.

Collaboratively, leading experts, researchers, clinicians, and members of industry will engage each other through inspiring dialogue aiming to advance the highest quality and development of hyperoxaluria future outcomes.

All conference registrations will include full access to the 2-day scientific program, access to the poster exhibition and all social and networking events.

Conference Directors

David J. Sas, D.O., MPH
Mayo Clinic
Rochester, MN, US

Barbara Cellini Ph.D.
University of Perugia
Perugia, Italy

Steering Committee

Yaacov Frishberg, M.D.
Shaare Zedek Medical Center
Jerusalem, Israel

John Knight, Ph.D.
The University of Alabama at
Birmingham, AL, US

Jaap Groothoff, M.D.
Emma Children’s Hospital
dam, Netherlands

W. Todd Lowther, Ph.D.
Wake Forest School of Medicine
Winston-Salem, NC, US

Gregory Tasian, M.D. MSc, MSCE
The Children’s Hospital of
Philadelphia, PA, US

Peter C. Harris, Ph.D.
Mayo Clinic
Rochester, MN, US

Shabbir Moochhala, M.D.
Royal Free Hospital
London, UK

Jonathan Whittamore, Ph.D.
UT Southwestern
Dallas, TX, US

Felix Knauf, M.D.
Charité – University Medicine
Berlin Berlin, Germany

Lama Nazzal, M.D., MSc.
New York University
New York, NY, US


Scientific Programme

Day 1 - June 23, 2023

Session One | Primary Hyperoxaluria Type 1

Session Chairs: Michelle Baum MD, Jaap Groothoff MD, Peter Harris PhD, Eduardo Salido MD


  • Clinical Presentations

  • Major Challenges

  • Research Presentations

  • Next Steps

Session Two - Surgery, Genetics, and Ethics in PH

Session Chairs: Justine Bacchetta PhD, John Lieske MD, Shabbir Moochhala MD


  • Surgery Presentation

  • Genetics and Unidentified Forms of Hyperoxaluria Presentations

  • Ethics: Varied Access to Diagnostics/Therapies Around the World Presentations

  • Next Steps


Welcome Cocktail Reception

Day 2 - June 24, 2023

Session Three – Primary Hyperoxaluria Type 2 & Type 3

Session Chairs: Yaacov Frishberg MD, Sally Hulton MD, John Knight PhD, W. Todd Lowther PhD



  • Clinical Presentations

  • Major Challenges

  • Research Presentations

  • Next Steps


Session Four – Enteric Hyperoxaluria

Session Chairs: Felix Knauf MD, Lama Nazzal MD, Greg Tasian MD, John Whittamore PhD


  • Clinical Presentations

  • Major Challenges

  • Research Presentations

  • Next Steps


Event Dinner


Abstract Submission

The scientific committee of the 14th International Hyperoxaluria Workshop invites all to submit an abstract on the following program topics. Each session will be comprised of clinical updates, major challenges, and a research update. There is a 300-word limit.


•       Primary Hyperoxaluria Type I

•       Genetics, Surgery and Ethics in PH

•       Primary Hyperoxaluria Type II and Type III

•       Enteric Hyperoxaluria


Deadline for abstract submission March 31st, 2023 and notifications will be received by April 14th 2023.

Young Investigator Travel Grants

A limited number of travel grants will be made available to selected young investigators whose abstracts have been accepted for oral or poster presentation.  Applicants who are still in a degree program (PhD., MD or equivalent), or within 5 years of completing a graduate or clinical training program will be eligible to apply and the awardee must attend the workshop. Only the presenting/corresponding author is eligible for the travel grant.

Young investigators applying for a travel grant must send their abstract by March 1st, 2023 and include/upload their CV in the abstract submission section.
Notifications of the acceptance of the travel grant will be sent by April 14th, 2023.
The reimbursement Awards are up to $ 1600,00.  Funding will be mailed or wired to the applicant within 30 days after the attendance of the Workshop.



The registration fee includes: Attendance to scientific sessions, Attendance certificate, Badge and congress kit, Catering as scheduled

General Info


A limited number of guest rooms will be offered to attendees at a discounted rate and will only be available through the online registration.  Booking will be on a first come, first served basis.  All the hotels in the room block are within walking distance to the Congress. If you prefer to stay elsewhere, we have listed additional locations for your convenience.

Each hotel is equipped with air conditioning, garage or parking, wellness area, free WIFI connection.

Genius books your stay in the selected Hotel for the indicated period and charges the cost of the first night and it is non-refundable. The balance must be paid to the hotel at the checkout. Genius Srl will send you a booking confirmation voucher before the event.

Reservation changes must be communicated to Genius Srl and are possible according to hotels availability.

Each change made after May 1 2023 is on payment of supplementary cost of € 25,00.

In case of cancellation after May 1, 2023 50% of the cost of the entire stay will be charged.

In case of cancellation of the reservation after June 1st 2023, the full cost of the reservation will be charged.

If you would like to book additional nights outside of the meeting dates or more than one hotel room for your stay, please contact Paola at

Additional hotels, bed and breakfast options are below



The nearest airport is Umbria International Airport – Perugia “San Francesco d’Assisi”. This airport provides international some direct flights to and from: London, Bruxelles, Vienna, Barcelona:


The main international Airport is Rome Fiumicino Leonardo da Vinci Airport (2 hours  and a half drive from Perugia). and

Other well-served international airports are:




The taxi ride takes about 25 minutes depending on traffic to get to Piazza Italia, nearby Brufani Palace Hotel. It costs € 30,00 (fixed price for maximum 4 people).


You can reach Perugia City Centre by bus.  The bus stop is located in front of the main entrance of the Terminal and you can buy on board tickets for € 5,00 (one way ticket).


You can find the main Car Rental Companies directly at the Airports

HERTZ                                            Tel. +39 075 5926266

EUROPCAR                             Tel +39 075 6920615

AVIS                          Tel. +39 075 6929796

BUDGET           Tel. +39 075 6929346



  • From Milan railway station: are available many trains, which take about 4 hours.

  • From Rome Fiumicino Airport: direct connection to Tiburtina or Termini railway station in about 30 minutes. From there it is possible to get to Perugia railway station in about 2 hours and a half.

  • From Rome Ciampino Airport: daily connections between the airport and Rome Termini railway station, The train from Rome Tiburtina or Termini Railway Station to Perugia takes about 2 hours and a half.

  • From Pisa Galileo Galilei Airport: direct railway lines connect Pisa Airport to Pisa Central Station and to Florence. The railway terminal is located just outside the Check-in hall. The train from Pisa to Perugia takes about 3 hours via Florence.

  • From Florence Peretola Airport: the airport is served by a daily bus service to the city main railway station where there are often trains to Perugia, that take about 2 hours.

General Information


Sala dei Notari – Palazzo dei Priori. Address: Piazza IV Novembre, Perugia

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Champion Sponsors

Guided Tours


It is possible to book one of the following guided visit tours per day during the registration process. All tours will take place at the same time after scientific session and will last about 1 hour.

Umbria National Gallery

The Umbria National Gallery houses one of the richest art collections in Italy and is, at the same time, a treasure chest of memories for the city of Perugia.

The artworks are exhibited on the upper floors of Perugia’s Palazzo dei Priori, seat of the City Council since the Middle Ages and the only Italian public building to house a large national museum. 3500 square metres of exhibition space over 40 rooms, a tower and a chapel, for an 800-year-long journey through the history of Italian art.


Perugia Underground

The Archaeological Area, at the very core of the so-called Saint Lawrence “Island”, will give you the joy of a discovery trip throughout the centuries. Quite unknown to the local people themselves, these places are hidden inside the hill on which Perugia is built. By entering them, it will become clear how, starting from the Etruscans and via the Romans, then the Papal residence, the town acquired its current shape. Going from the cloister of the cathedral down into the archaeological area can be likened to a time machine that synchronizes its clock with ours more and more as we cross the centuries toward the surface.


Guided Tour of Perugia City Centre

Collegio del Cambio

One of the main highlights in Perugia City Centre is the Guild Palace of the Cambio and of the Mercanzia. The most powerful guilds in Perugia were those of the “Mercanzia” and the “Cambio” (Merchants and Money Changers). This was due to the importance that they were able to acquire in the civic life and government of the city. In the register of the Cambio for 1377, it states explicitly that “Ars Cambi quae est pars magna totius Reipublicae Civitatis”. The main functions of the Cambio were those of controlling the legitimate exchange of money and the pronouncing of sentence in civil cases within their specific field. The Collegio or guild thus took on the duties of a tribunal and the senior members, the Consuls, became known as “Uditori”; the place where they met to hear the cases brought before them the “Sala delle Udienze”. Structural work on their new centre within the “Palazzo Pubblico” began in 1452 and was finished by 1457. The decoration, the paintings and the frescoes  of the ceilings and the walls are amazing and were made by the most important artists and painters of that time.


Pozzo Etrusco - Etruscan Well

The Well situated in the highest point of the city is  an exceptional work of hydraulic engineering which dates back to the second half of the 3rd century B.C., testifying to the advanced degree of civilization reached by the Etruscans at the time.

The size of the well, unusual compared to the water reservoirs normally built in Etruscan times, has led experts to believe that it was originally conceived as a cistern and later transformed into a well to reach a deep vein of water. It is still fed today by 3 veins of water and it was an important source of water for the town. The cylindrical well has a diameter of about 5.6 meters for the first 12 meters of depth, lined by large stone blocks similar to those used for the town’s Etruscan walls. The shaft then narrows to a diameter of about 3 m, reaching a depth of approximately 37 m.

The path allows you to reach the well-head and cross it through a modern glass and steel walkway which, together with the new lighting system, allows you to enjoy the impressive architecture of the well.

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