AzTrials
AzTrials

InfertilityNCT04602962

Efficacy and Safety of Fertility Treatments and Fertility Preservation

An observational study of Infertility, run by Karolinska Institutet at 1 site in Sweden.

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

This study analyses clinical data prospectively collected for over a decade in several clinical databases. Electronic medical records are available since 1998. Since 2011 the subgroup of patients that undergo fertility preservation are invited to participate in a prospective study aiming at long-term follow-up after… Read more about this study

Who is it for?
Ages Up to 56 years
Conditions the study is for
Infertility
What is being tested?
fertility preservation, several methods
Type of treatment
Surgery or procedure
How many people
50,000 participants
Where
1 siteSweden
Study dates
Sep 2009to Dec 2030
Phase
Observational
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 Up to 56 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Study population: Cohort collected from the registers of the university hospitals of Sweden, each representing a health care region, from 1995 and ongoing. FP is included in the tax funded healthcare system and data is registered all over the country. Date is also compared with the Swedish tax registry.

Who may be able to join

  • infertile patients and patients who undergo fertility preservation

Who cannot join

  • Healthy individuals, fertile population

Trial locations and contacts

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

Dan Grandér, Prof contact

dan.grander@ki.se

Susanne Gruber contact

susanne.gruber@ki.se

Sweden1 site, 1 recruiting
  • Reproductive Medicine, Karolinska University Hospital

    Stockholm, 141 86

    Mats Hellström, RN, mats.hellstrom@karolinska.se

    Birgit Borgström, MD PhD

    Recruiting

Other trials in Sweden

About this study

Official title: Studies Aiming at Identifying Predictors for Fertility Treatments' Outcomes and to Evaluate the Efficacy and Safety of Fertility Preservation

This study analyses clinical data prospectively collected for over a decade in several clinical databases. Electronic medical records are available since 1998.

Since 2011 the subgroup of patients that undergo fertility preservation are invited to participate in a prospective study aiming at long-term follow-up after fertility preservation for oncologic and non-oncologic conditions.

Read the detailed description

In this study, the investigators aim at analyze the treatment outcomes of patients with infertility, their clinical characteristics and biochemical parameters aiming at identifying predictors for the treatment outcomes.

For the cohort of patients that have undergone fertility preservation at Karolinska University Hospital, the investigators aim at investigating efficacy and safety of the procedures.

The data can be expanded by using additional databases such as the Regional Cancer Registry and other registries.

Analysis of data collected will allow the investigation of efficacy and safety of fertility preservation, identification of predictors for fertility outcomes,prediction of future activities and costs of the procedures.

Conditions
Infertility
Being tested
fertility preservation, several methods
Keywords
fertility preservation, fertility treatment, safety, efficacy, fertility outcomes, follow-up, cohort
Medical subject headings
Infertility

What participants receive

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

  • fertility preservation, several methodsProcedure or surgery

    Also called cryopreservation, surgery

    fertility preservation using assisted reproductive techniques or not

Study groups in NCT04602962
Study groupRoleWhat they receive
Fertility preservation performedsubgroup analysis by cause of infertility, clinical characteristics, biochemical markers
Receives: Procedure: fertility preservation, several methods
Fertility preservation not performedsubgroup analysis by cause of infertility, clinical characteristics, biochemical markers

What is being measured

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

  1. Efficacy and safety of fertility preservation - Long-term follow-up

    Correlation between method of fertility preservation and pregnacy rate

    Measured: 2028

Secondary outcomes (4)
  1. Clinical outcome of fertility treatments i breast cancer patients

    Fertility treatment vs no fertility treatment i breastcancer patients: effect on survival

    Measured: 5-20 years post diagnosis

  2. Clinical outcome of fertility treatments i breast cancer patients

    Fertility treatment vs no fertility treatment i breastcancer patients: effect on disease free survival

    Measured: 5-7 years post diagnosis

  3. Predictors of effictive fertility treatment

    Correlation between clinical variables (age, BMI, oocyte level, administered gonadotropins, infertility) method of fertility preservation and Pregnancy rate

    Measured: patient data collected from time of treatment, pregnancy rate until end of study

  4. Efficacy and safety of COS using GnRHa for fertility preservation in BC patients

    hCG vs GnRH trigger on effect on number of cryopreserved embryos and oocytes

    Measured: Observed outcomes in patients registered between 1995 and 2017. Follow up until end of 2018.

Timeline

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

  1. First posted26 Oct 2020
  2. Study startSep 2009
  3. Primary completionDec 2028 (estimated)
  4. Study completionDec 2030 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Other
Enrolment
50,000 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04602962
Sponsor's protocol ID
KI-KRW-200909-201505
Status last verified
May 2023
First submitted
18 May 2015
Last updated
30 May 2023
Results posted
No
Data monitoring committee
Yes
Individual data sharing
No

Publications

  • Wikander I, Lundberg FE, Nilsson H, Borgstrom B, Rodriguez-Wallberg KA. A Prospective Study on Fertility Preservation in Prepubertal and Adolescent Girls Undergoing Hematological Stem Cell Transplantation. Front Oncol. 2021 Jun 30;11:692834. doi: 10.3389/fonc.2021.692834. eCollection 2021.

    PubMed 34277437

Questions about this trial

What is this clinical trial studying?

An observational study of Infertility, run by Karolinska Institutet at 1 site in Sweden.

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 1 inclusion and 1 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 30 May 2023. 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 Sweden. 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 Dan Grandér, Prof (dan.grander@ki.se), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Efficacy and safety of fertility preservation - Long-term follow-up (time frame: 2028). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04602962, which also lists 1 linked publication.

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 30 May 2023.

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