Tato stránka byla automaticky přeložena a přesnost překladu není zaručena. Podívejte se prosím na anglická verze pro zdrojový text.

Perceptions and Acceptance of Grafting of Cryopreserved Testicular Tissue (PACTT)

29. října 2026 aktualizováno: Murdoch Childrens Research Institute

Perceptions and Acceptance of Grafting of Cryopreserved Testicular Tissue (PACTT)

Cancer treatment can cause infertility. Fertility preservation is possible for many populations through, egg, sperm or ovarian tissue freezing prior to cancer treatment. However, there is no established technology to protect the fertility of pre-pubertal boys.

Outcomes: Primary outcome is to identify whether male (assigned male at birth) oncology survivors who had prior testicular tissue cryopreservation would be willing to undergo testicular tissue grafting. The secondary outcomes identify what factors influence decision for testicular grafting including demographics factors, fertility related knowledge, reproductive goals and concerns, unmet fertility needs, decisional conflict and regret about fertility care, patient reported outcome measures (stress and anxiety), attempted or actual parenthood or natural fertility restoration

Participants: 105 Male aged 18 years and over who completed oncology treatment at the Royal Children's Hospital (RCH) at least one year prior and had testicular tissue cryopreservation for fertility preservation.

Sites: Murdoch Children Research Institute (MCRI)

Přehled studie

Postavení

Zatím nenabíráme

Podmínky

Intervence / Léčba

Detailní popis

Cancer treatment can cause infertility. Fertility preservation is possible for many populations through egg, sperm or ovarian tissue freezing prior to cancer treatment. There is no established technology to protect the fertility of prepubertal boys. Many centres internationally, including the Royal Children's Hospital, have offered freezing of testis tissue as a new technology, in the hope that technology will develop to be able to mature the tissue into sperm so that it can be used for parenthood. In animals, grafting of the testis tissue back into the body has resulted in successful births. This has paved the way for testicular tissue grafting in humans as a novel technology. The primary aim of this study is to identify whether male (assigned male at birth) patients who have completed oncology treatment who had prior testicular tissue cryopreservation would be willing to undergo testicular tissue grafting. Predictive factors and barriers will also be assessed. We will ask participants to complete a survey which will take 15 minutes. Participants will be reimbursed for their time. They will be referred to reproductive counsellors if participation causes emotional discomfort or distress

Study Question: What are the factors influencing intention to autograft previously stored cryopreserved testicular tissue for the purposes of fertility restoration?

Study Objectives: To identify barriers, enablers and facilitators for testicular tissue grafting in adult who have completed oncology treatment who had previously undergone testicular tissue cryopreservation in childhood.

Primary Objective: To identify whether patients who have completed oncology treatment who had testicular tissue cryopreservation would be willing to undergo testicular tissue grafting.

Secondary Objective: to identify what factors influence decisions for testicular tissue grafting including demographic factors, fertility-related knowledge, reproductive goals and concerns, unmet fertility needs, decisional conflict patient reported outcome measures (stress and anxiety), attempted or actual parenthood or natural fertility restoration.

Design: Cross-sectional survey of patients who have completed oncology treatment who had prior testicular tissue cryopreservation at The Royal Children's Hospital as part of their oncology treatment. Validated and purposively designed surveys (by clinician scientists) and utilised in previous studies of Adolescent and Young Adult (AYA) Oncofertility will identify barriers and enablers. Qualitative data will be grouped according to The Theory of Planned Behaviour and the COM-B (Capability, Opportunity, Motivation - Behaviour) model.

Typ studie

Pozorovací

Zápis (Odhadovaný)

105

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní kontakt

Studijní místa

    • Victoria
      • Parkville, Victoria, Austrálie, 3052
        • Murdoch Children's Research Institute
        • Kontakt:
        • Dílčí vyšetřovatel:
          • Debra Gook, PhD, Senior Investigator
        • Dílčí vyšetřovatel:
          • Margaret Zacharin, MBBS, FRACP, PhD
        • Dílčí vyšetřovatel:
          • Michael Assis, PhD, Postdoc Research Fellow
        • Dílčí vyšetřovatel:
          • Hossam Elzeiny, MB ChB, AMC Certificate, FRANZ
        • Dílčí vyšetřovatel:
          • Zobaida Edib, PhD, Postdoc Research Fellow
        • Dílčí vyšetřovatel:
          • Apoorva Bhargava, MPH, Research Fellow
        • Dílčí vyšetřovatel:
          • Diana Navarro - Perez, PhD, MSc

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

18 let a starší (Dospělý, Starší dospělý)

Přijímá zdravé dobrovolníky

Ne

Pohlaví způsobilá ke studiu

Mužský

Metoda odběru vzorků

Vzorek nepravděpodobnosti

Studijní populace

Participants are identified from the Melbourne Oncofertility Registry (MORE Registry) as patients who had testicular tissue cryopreservation at the Royal Children's Hospital as part of their cancer treatment.

Popis

Inclusion Criteria:

  • Assigned male at birth who have completed oncology treatment of childhood oncology treatment (they may have had malignant or benign disease)
  • Who are 18 years and over
  • Who had testicular tissue cryopreservation as part of their childhood oncology care
  • Who have completed curative gonadotoxic treatment.
  • Can communicate in English.
  • Can provide a signed written informed consent

Exclusion Criteria:

  • Deceased patients
  • Patients currently undergoing active gonadotoxic cancer treatment.
  • Patients who are palliative

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Observační modely: COHORT
  • Časové perspektivy: PROSPECTIVE

Kohorty a intervence

Skupina / kohorta
Intervence / Léčba
105 males aged 18 years and above who had testicular tissue cryopreservation at the RCH

No intervention

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Willingness to consider testicular tissue grafting as measured by responses to a likert scale on the study survey
Časové okno: Baseline

Willingness to undergo testicular tissue grafting as measured by the likert scale will range from 1 (strongly agree) to 7 (strongly disagree). Responses will be assessed where 4 will be designated neutral. Survey responses will be dichotomised (<4 = not willing and >4 = willing); or agree/disagree.

Baseline

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Willingness to consider testicular tissue grafting within a specified time period (1 year) as measured by responses to a likert scale on the study survey
Časové okno: Baseline

Willingness to undergo testicular tissue grafting as measured by the likert scale will range from 1 (strongly agree) to 7 (strongly disagree). Responses will be assessed where 4 will be designated neutral. Survey responses will be dichotomised (<4 = not willing and >4 = willing); or agree/disagree.

Baseline
Willingness to consider testicular tissue grafting within a specified time period (5 year) as measured by responses to a likert scale on the study survey
Časové okno: Baseline

Willingness to undergo testicular tissue grafting as measured by the likert scale will range from 1 (strongly agree) to 7 (strongly disagree). Responses will be assessed where 4 will be designated neutral. Survey responses will be dichotomised (<4 = not willing and >4 = willing); or agree/disagree.

Baseline
Willingness to consider testicular tissue grafting within a specified time period (10 year) as measured by responses to a likert scale on the study survey
Časové okno: Baseline

Willingness to undergo testicular tissue grafting as measured by the likert scale will range from 1 (strongly agree) to 7 (strongly disagree). Responses will be assessed where 4 will be designated neutral. Survey responses will be dichotomised (<4 = not willing and >4 = willing); or agree/disagree.

Baseline
Willingness to consider testicular tissue grafting according to perceived potential beneficial outcomes as measured by responses to a likert scale on the study survey
Časové okno: Baseline

Willingness to undergo testicular tissue grafting in the hope that it will contribute to [parenthood as soon as possible] [mature sperm that can be frozen] [improved guidelines for testicular grafting].

Responses from 1 strongly agree to 7 strongly disagree. Responses will be assessed where 4 will be designated neutral. Survey responses will be dichotomised (<4 = not willing and >4 = willing); or agree/disagree.

Baseline
Willingness to consider testicular tissue grafting according to perceived safety as measured by responses to a likert scale on the study survey
Časové okno: Baseline

Willingness to undergo testicular tissue grafting because it is [safe] [acceptable] [within my right to do so] responses as percentages 0, 1, 5, 10, 20% or more.

Responses from 1 strongly agree to 7 strongly disagree. Responses will be assessed where 4 will be designated neutral. Survey responses will be dichotomised (<4 = not willing and >4 = willing); or agree/disagree.

Baseline
Perceived social pressure from partners, parents, general practitioners (GP) and religious leaders as measured by responses to the Theory of Planned Behaviour questionnaire.
Časové okno: Baseline

Responses from 1 strongly agree to 7 strongly disagree. Responses will be assessed where 4 will be designated neutral. Survey responses will be dichotomised (<4 = not willing and >4 = willing)

Baseline
Perceived behavioural control as measured by responses to the Theory of Planned Behaviour questionnaire.
Časové okno: Baseline

Responses to either disagree or agree.

Baseline
Unmet fertility information needs as measured by The Unmet Needs Survey (as used/adapted from Benedicts et al., 2023).
Časové okno: Baseline

Unmet fertility information needs is assessed on a 6-point scale, ranging from 0 to 5, higher scores indicate greater unmet information needs. Unmet fertility information needs will be summarised as a mean score.

Baseline
Decisional Conflict as measured by the Decisional Conflict Scale (DCS).
Časové okno: Baseline

The decisional conflict scale ranges between 0 to 100.Higher scores on the scale indicate greater decisional conflict.

Baseline
Cancer impact and information as measured by The Cancer Impact and Information Needs survey (as used by the AYA HOPE Study Collaborative Group - Harlan et al., 2011).
Časové okno: Baseline

Assess opportunity of making a decision measured by cancer impact and information needs. Cancer impact and information needs are assessed on a 6 point Likert scale (1 = Very negative impact and 6 = Does not apply).

Baseline
Financial toxicity survey as measured by the Comprehensive Score for Financial Toxicity (COST).
Časové okno: Baseline

Financial toxicity scale is evaluated using an 11 items survey where scores range from 0 to 44 with lower scores indicating a higher cancer-related financial impact.

Baseline
Anxiety as measured by the Patient-Reported Outcomes Measurement Information System (PROMIS) 6a
Časové okno: Baseline

PROMIS anxiety is assessed using their short form with 6 items (PROMIS 6a) items in a 5 Likert scale (1 = never and 5 = always) raw scores are transformed using PROMIS T-score tables, higher T score means worse health.

Baseline
Depression as measured by PROMIS 6a
Časové okno: Baseline

PROMIS depression is assessed using their short form with 6 items (PROMIS 6a) items in a 5 Likert scale (1 = never and 5 = always) raw scores are transformed using PROMIS T-score tables, higher T score means worse health.

Baseline
Stress as measured by PROMIS 8a
Časové okno: Baseline

PROMIS stress is assessed using its short form (PROMIS 8a) 8 items in a 5 Likert scale (1 = never and 5 = always) raw scores are transformed using PROMIS T-score tables, higher T score means worse health.

Baseline
Optimism as measured by the adapted Life Orientation Scale.
Časové okno: Baseline

Optimism (Life Orientation) scale is used in the reduced form with only the optimistic measures (3-item LOT-R optimism subscale) with responses assessed in a 5-point Likert scale ranging from 1 = strongly disagree and 5 = strongly agree, higher scores indicate higher dispositional optimism.

Baseline
Medical Decision-Making preferences as measured by the Control Preferences Scale
Časové okno: Baseline

Medical Decision-Making preference is evaluated following the Control Preference Scale, where 5 items are ranked from the most preferred to the least preferred option, the highest rank item will determine if the chosen role is active, passive or collaborative.

Baseline
Reproductive Goals (as adapted from Lehmann et al., 2017).
Časové okno: Baseline

Reproductive goals are assessed using 5 items categorising responses between yes, no or unsure.

Baseline

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Sponzor

Spolupracovníci

Vyšetřovatelé

  • Vrchní vyšetřovatel: Yasmin Jayasinghe, MBBS, FRANZCOG, PhD, University of Melbourne

Publikace a užitečné odkazy

Osoba odpovědná za zadávání informací o studiu tyto publikace poskytuje dobrovolně. Mohou se týkat čehokoli, co souvisí se studiem.

Obecné publikace

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Odhadovaný)

1. prosince 2026

Primární dokončení (Odhadovaný)

31. prosince 2027

Dokončení studie (Odhadovaný)

30. června 2028

Termíny zápisu do studia

První předloženo

29. října 2026

První předloženo, které splnilo kritéria kontroly kvality

29. října 2026

První zveřejněno (Aktuální)

4. listopadu 2026

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

4. listopadu 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

29. října 2026

Naposledy ověřeno

1. října 2026

Více informací

Termíny související s touto studií

Další identifikační čísla studie

  • HREC 130619

Plán pro data jednotlivých účastníků (IPD)

Plánujete sdílet data jednotlivých účastníků (IPD)?

ANO

Popis plánu IPD

De- identified individual participant data (IPD) will be shared with study collaborators upon request and as necessary to facilitate research collaborations and study publications.

Individual participant data that underlie the results reported after de-identification (text, tables, figures and appendices), participant information and consent form (PICF).

Časový rámec sdílení IPD

Following analysis and article publication.

Kritéria přístupu pro sdílení IPD

Only authorised study site staff will have access to de-identified information. De-identified IPD will be shared with collaborators only in specific circumstances where sharing the data will benefits and extend research collaborations.

Typ podpůrných informací pro sdílení IPD

  • ICF

Informace o lécích a zařízeních, studijní dokumenty

Studuje lékový produkt regulovaný americkým FDA

Ne

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ne

Tyto informace byly beze změn načteny přímo z webu clinicaltrials.gov. Máte-li jakékoli požadavky na změnu, odstranění nebo aktualizaci podrobností studie, kontaktujte prosím register@clinicaltrials.gov. Jakmile bude změna implementována na clinicaltrials.gov, bude automaticky aktualizována i na našem webu .