NCT04602962

Brief 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 fertility preservation for oncologic and non-oncologic conditions.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
50,000

participants targeted

Target at P75+ for all trials

Timeline
55mo left

Started Sep 2009

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress79%
Sep 2009Dec 2030

Study Start

First participant enrolled

September 1, 2009

Completed
5.7 years until next milestone

First Submitted

Initial submission to the registry

May 18, 2015

Completed
5.4 years until next milestone

First Posted

Study publicly available on registry

October 26, 2020

Completed
8.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2028

Expected
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2030

Last Updated

May 30, 2023

Status Verified

May 1, 2023

Enrollment Period

19.3 years

First QC Date

May 18, 2015

Last Update Submit

May 26, 2023

Conditions

Keywords

fertility preservationfertility treatmentsafetyefficacyfertility outcomesfollow-upcohort

Outcome Measures

Primary Outcomes (1)

  • Efficacy and safety of fertility preservation - Long-term follow-up

    Correlation between method of fertility preservation and pregnacy rate

    2028

Secondary Outcomes (4)

  • Clinical outcome of fertility treatments i breast cancer patients

    5-20 years post diagnosis

  • Clinical outcome of fertility treatments i breast cancer patients

    5-7 years post diagnosis

  • Predictors of effictive fertility treatment

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

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

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

Study Arms (2)

Fertility preservation performed

subgroup analysis by cause of infertility, clinical characteristics, biochemical markers

Procedure: fertility preservation, several methods

Fertility preservation not performed

subgroup analysis by cause of infertility, clinical characteristics, biochemical markers

Interventions

fertility preservation using assisted reproductive techniques or not

Also known as: cryopreservation, surgery
Fertility preservation performed

Eligibility Criteria

AgeUp to 56 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodNon-Probability Sample
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.

You may qualify if:

  • infertile patients and patients who undergo fertility preservation

You may not qualify if:

  • Healthy individuals, fertile population

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Reproductive Medicine, Karolinska University Hospital

Stockholm, 141 86, Sweden

RECRUITING

Related Publications (1)

  • 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.

MeSH Terms

Conditions

Infertility

Interventions

Fertility PreservationCryopreservationSurgical Procedures, Operative

Condition Hierarchy (Ancestors)

Genital DiseasesUrogenital Diseases

Intervention Hierarchy (Ancestors)

Reproductive Techniques, AssistedReproductive TechniquesTherapeuticsTissue and Organ HarvestingTransplantationInvestigative TechniquesTissue PreservationHistocytological Preparation TechniquesCytological TechniquesClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisHistological TechniquesPreservation, Biological

Study Officials

  • Dan Grandér, Prof

    Karolinska Institutet

    STUDY CHAIR

Central Study Contacts

Dan Grandér, Prof

CONTACT

Susanne Gruber

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
OTHER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD, PhD, Associate Professor

Study Record Dates

First Submitted

May 18, 2015

First Posted

October 26, 2020

Study Start

September 1, 2009

Primary Completion (Estimated)

December 1, 2028

Study Completion (Estimated)

December 1, 2030

Last Updated

May 30, 2023

Record last verified: 2023-05

Data Sharing

IPD Sharing
Will not share

Locations