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NeoplasmsNCT05830929

Ovarian Tissue Cryopreservation and Subsequent Auto-Transplantation for Female Cancer Patients

A study testing Ovarian tissue freezing and subsequent auto-transplantation after thawing in people with Neoplasms, run by Chinese University of Hong Kong at 1 site in Hong Kong.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Ovarian Tissue Cryopreservation will be provided to cancer patients to allow them to have their fertility preserved. Read more about this study

Who is it for?
Ages 1 month to 35 years, women only
Conditions the study is for
Neoplasms
What is being tested?
Ovarian tissue freezing and subsequent auto-transplantation after thawing
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
100 participants
Where
1 siteHong Kong
Study dates
1 Aug 2023to 30 Dec 2043
Phase
Interventional
Are there results?
Not yet: the study is under way

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 1 month to 35 years
  • Women only
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Patients aged from 0-35 years old and diagnosed with cancer e.g., leukaemia, myeloproliferative or myelodysplastic diseases, lymphoma, bone tumours, neurological neoplasms and sarcoma, Paediatric bone marrow transplant patients
  • Patients with any illness or who will undergo any type of treatment that may cause irreversible damage to their fertility, such as extensive abdominal surgery, high toxicity medication and treatments;
  • Patients suffering from hormone-sensitive malignancies who will undergo medical treatment, such as radiotherapy and chemotherapy that is liable to damage their ovaries and deter them from conception in the future.

Who cannot join

  • Patients with no anticipated oncologic therapies
  • Patients who are pregnant
  • Children with one ovary
  • Children deemed high risk for perioperative complications
  • Patients unable to provide consent/assent (i.e. significant psychiatric problems/cognitive delay)

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Elaine NG, MPhil contact

+852 35052745

elaineng@cuhk.edu.hk

Hong Kong1 site, 1 recruiting
  • Prince of Wales Hospital

    Hong Kong

    Jacqueline Pui Wah Chung, MBBS, +852 35051537, jacquelinechung@cuhk.edu.hk

    Recruiting

Other trials in Hong Kong

About this study

Ovarian Tissue Cryopreservation will be provided to cancer patients to allow them to have their fertility preserved.

Read the detailed description

This project hopes to provide Ovarian Tissue Cryopreservation to patients who do not have adequate time for ovarian stimulation in oocyte or embryo freezing and in prepubertal girls where oocyte freezing is not possible. All the patients will have fertility preservation consultations with a fertility specialist in our unit to go through the details of ovarian Tissue Cryopreservation service and risks related to ovarian tissue cryopreservation procedures. After undergoing ovarian tissue collection via surgery, the collected ovarian tissue will be cryopreserved either by slow freezing or vitrification in our unit.

Conditions
Neoplasms
Being tested
Ovarian tissue freezing and subsequent auto-transplantation after thawing
Medical subject headings
Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Ovarian tissue freezing and subsequent auto-transplantation after thawingProcedure or surgery

    Removal of the ovarian tissue will be retrieved via laparoscopic surgery under general anesthesia. The ovarian cortical tissue obtained will be transferred on ice to the laboratory for cryopreservation. After medical treatment, if the patient would like to start a family but has experienced premature ovarian failure, she will have ovarian tissue auto-transplantation after thawing.

Study groups in NCT05830929
Study groupRoleWhat they receive
Ovarian tissue freezing and subsequent auto-transplantation after thawingExperimentalOvarian tissue freezing and subsequent auto-transplantation after thawing
Receives: Procedure: Ovarian tissue freezing and subsequent auto-transplantation after thawing

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Surgical complications

    Surgical complications after ovarian tissue transplantation

    Measured: 15 years

Secondary outcomes (1)
  1. Pregnancy rate

    Pregnancy rate after ovarian tissue transplantation

    Measured: 15 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Apr 2023
  2. Study start1 Aug 2023
  3. Primary completion30 Apr 2043 (estimated)
  4. Study completion30 Dec 2043 (estimated)

Resources

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 N/A
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
100 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05830929
Sponsor's protocol ID
2023.096-T
Status last verified
Jan 2026
First submitted
14 Apr 2023
Last updated
7 Jan 2026
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Ovarian tissue freezing and subsequent auto-transplantation after thawing in people with Neoplasms, run by Chinese University of Hong Kong at 1 site in Hong Kong.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 7 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Hong Kong. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Elaine NG, MPhil (+852 35052745, elaineng@cuhk.edu.hk), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Surgical complications (time frame: 15 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Jan 2026; AzTrials last refreshed its copy on 8 Nov 2026.

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