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OvaNet

A Global Consortium for Ovarian Tissue Cryopreservation

About OvaNet

OvaNet is a global consortium of centers specializing in ovarian tissue cryopreservation and transplantation (OTC & OTT), uniting international experts dedicated to advancing the field of female fertility preservation.

Why was OvaNet initiated?

OvaNet was established to promote best practices and coordinate clinical and research efforts aimed at preserving and restoring fertility in girls and young women at risk of fertility loss. Now is the time to come together—to share our collective knowledge and expertise for the benefit of patients worldwide.

To truly advance the field, we need a comprehensive overview of global practices and ongoing activities. Only through such collaboration can we begin to establish consensus guidelines and elevate standards of care in fertility preservation.

Stine Gry Kristensen, Founder of OvaNet
Stine Gry Kristensen, Founder of OvaNet

"It is time to unite all our knowledge, expertise, and experience!”

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Stine Gry Kristensen Founder of OvaNet
Ovary cryotubes

What’s our mission?

Our mission is to offer the highest standard of counseling, care, and guidance on fertility preservation for young females at risk of premature ovarian insufficiency — based on evidence, experience, and research across our international network.

Together we can:

  • Standardize reporting of reproductive outcomes after OTT
  • Perform subgroup analysis according to diagnosis and age of the patients
  • Identify determining factors affecting the success rates
  • Discuss consensus regarding cryopreservation and transplantation techniques
  • Improve the efficacy of freezing and transplantation protocols

... and much more.

"My dream for OvaNet is to ensure that we provide OTC to the patients who benefit the most—and that we make the OTC and OTT procedures as effective as possible."

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Stine Gry Kristensen Founder of OvaNet

Help Us Build OvaNet

On December 16, 2024, we held the inaugural OvaNet meeting online — bringing together over 65 healthcare professionals and experts from across the globe. The enthusiasm, support, and engagement were truly overwhelming. It’s clear that OvaNet resonates deeply with the community — and the time to unite is now.

OvaNet aims to advance all aspects of OTC and OTT, bridging clinical practice and laboratory science. To achieve this, we need active participation from everyone involved in the field — whether you're working in the lab, treating patients, or conducting research. Your insights are essential, and we need your help to identify the most important questions to address within OvaNet.

We therefore invite you to:

  • Become a member of OvaNet and register your profile – it is FREE!
  • Complete the survey on key challenges and unanswered questions in OTC & OTT (the survey is available in the Member’s Area once you have created a member profile)
Ovarian tissue cryotubes

We Need Your Input

Many unanswered questions exists in the field of OTC and OTT:

  • Which patients benefit most from OTC and OTT?
  • How can we compare reproductive outcomes across diagnoses, age groups, and treating centers?
  • Can we improve transplantation protocols to maximize follicle survival?
  • Can we increase return rates for OTT?
  • Are we offering adequate follow-up and long-term care?
  • What are the success rates of OTC and OTT in prepubertal girls?

With OvaNet we can start answering some of these questions!

Your input is fundamental and will help ensure that OvaNet addresses the most pressing issues facing our community. Please complete the survey on key challenges and unanswered questions in OTC & OTT in the Member’s Area!

"Shaping OvaNet to achieve its full potential will be an ongoing process — a journey I am looking much forward to embark on with all of you!"

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Stine Gry Kristensen Founder of OvaNet

Join OvaNet

Help shape the future of ovarian tissue cryopreservation worldwide — with no membership fee.

Christiani Andrade Amorim, Co-Founder of OvaNet
Christiani Andrade Amorim, Co-Founder of OvaNet

OvaBasic

As the research arm of OvaNet, OvaBasic is committed to driving the scientific innovation needed to improve ovarian tissue cryopreservation and transplantation. While OvaNet unites a global community of clinical and laboratory experts, OvaBasic is the platform that ensures our practices are grounded in evidence and continually evolving through research.

We believe that transforming patient outcomes begins in the lab. OTC has already changed lives, but there is still so much to learn and improve.


At OvaBasic, our goal is to:

  • Optimize tissue transport, cryopreservation and thawing techniques for better viability and function.
  • Improve revascularization and graft longevity through advanced transplantation strategies and biomaterial solutions.
  • Identify predictive markers of ovarian reserve and graft potential to guide personalized counseling and care.
  • Incorporate emerging technologies, from organoids to bioengineering, to model ovarian function and test therapeutic interventions.
  • Facilitate multi-center collaborative studies to generate robust, translatable data that benefit all patients, globally.

OvaBasic exists to ensure that the science keeps pace with the clinic, so that every girl and woman at risk of fertility loss receives the safest, most effective, and evidence-based care possible.

This is how we turn promise into progress.

"Research is crucial! Without scientific progress, we cannot refine protocols, personalize treatments, or understand the full biological impact of our interventions."

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Christiani Andrade Amorim Co-Founder of OvaNet

Governance of OvaNet

The goal is to built OvaNet on a clear and inclusive governance structure designed to ensure effective coordination, representation, and progress across the consortium.

The management of OvaNet is anchored in a Coordinating Board, composed of 4-6 representatives including the chair and vice-chair. This board coordinate activities and establishes foundational infrastructure, including the website/communication platforms, funding strategies, governance documents etc. An Interim Board will be formed to initiate these efforts while the full structure is being implemented.

Each participating country or major cryobank appoints 1–2 representatives — ideally including both a clinician and a laboratory scientist — to form the Steering Committee. This committee, meeting quarterly, provides defines strategic direction, prioritizes goals, initiates position papers, and ensures alignment with global partners such as ESHRE, ISFP, FertiPROTEKT, and the Oncofertility Consortium.

To tackle specific challenges and key questions, OvaNet will establish Special Interest Groups (SIGs) — working groups of 6–10 members focused on targeted topics such as clinical outcome reporting, protocol standardization, follow-up after OTT, global registry development, research coordination, and educational outreach. These groups meet bi-monthly and are led by an appointed chair and vice-chair.

Finally, the General Assembly includes all OvaNet members and meets biannually as an open forum to share updates, discuss new initiatives, and shape the consortium’s direction collectively. This structure ensures broad engagement, transparency, and impact across the field of ovarian tissue cryopreservation and transplantation.

Coordinating Board
Chair, vice-chair and 2–4 representatives
Steering Committee
1–2 representatives from each country
SIG working
group
6–8 OvaNet members
SIG working
group
6–8 OvaNet members
SIG working
group
6–8 OvaNet members
General Assembly
All OvaNet members

The OvaNet Platform

The OvaNet Platform was designed from the ground up to meet the specific needs of this international network. From accessibility to collaboration, every feature has been thoughtfully built to support the mission of preserving fertility worldwide.

As the developer behind the platform, and OvaNet’s first employee, I'm proud to bring a unique perspective to this work. With a background in reproductive science and over a decade of experience in OTC research, I transitioned into tech to build meaningful, pragmatic tools.

And this is just the beginning. OvaNet is continuously evolving to become a true space for connection, knowledge exchange, and shared purpose. There is a lot on the way! We are building a platform shaped by — and for — the global OTC community.

Janice Vilela, Developer of the OvaNet Platform
Janice Vilela, Developer of the OvaNet Platform

Current Features

  • Personalized dashboard with access to your profile and affiliations
  • Full directory of OvaNet members
  • Overview of participating centers and institutions
  • Manage your institutional affiliations
  • Respond to collaborative surveys

Coming Features

  • Internal calendar with events and activities
  • Secure document sharing and storage
  • Private messaging system for members
  • Internal Forum for member interactions

...and more.

"Life has a magical way of connecting the dots: being invited to build this platform allowed me to unite my scientific roots with a fresh, meaningful journey as a developer."

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Janice Vilela Developer of the OvaNet Platform

Join OvaNet

Membership is completely free — all it takes is your willingness to contribute.