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

29 de outubro de 2026 atualizado por: 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)

Visão geral do estudo

Status

Ainda não está recrutando

Condições

Intervenção / Tratamento

Descrição detalhada

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.

Tipo de estudo

Observacional

Inscrição (Estimado)

105

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

Locais de estudo

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

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

18 anos e mais velhos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Não

Gêneros Elegíveis para o Estudo

Macho

Método de amostragem

Amostra Não Probabilística

População do estudo

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.

Descrição

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

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Modelos de observação: COHORT
  • Perspectivas de Tempo: PROSPECTIVE

Coortes e Intervenções

Grupo / Coorte
Intervenção / Tratamento
105 males aged 18 years and above who had testicular tissue cryopreservation at the RCH

No intervention

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Willingness to consider testicular tissue grafting as measured by responses to a likert scale on the study survey
Prazo: 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

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
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
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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.
Prazo: 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.
Prazo: 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).
Prazo: 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).
Prazo: 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).
Prazo: 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).
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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.
Prazo: 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
Prazo: 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).
Prazo: Baseline

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

Baseline

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Colaboradores

Investigadores

  • Investigador principal: Yasmin Jayasinghe, MBBS, FRANZCOG, PhD, University of Melbourne

Publicações e links úteis

A pessoa responsável por inserir informações sobre o estudo fornece voluntariamente essas publicações. Estes podem ser sobre qualquer coisa relacionada ao estudo.

Publicações Gerais

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Estimado)

1 de dezembro de 2026

Conclusão Primária (Estimado)

31 de dezembro de 2027

Conclusão do estudo (Estimado)

30 de junho de 2028

Datas de inscrição no estudo

Enviado pela primeira vez

29 de outubro de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

29 de outubro de 2026

Primeira postagem (Real)

4 de novembro de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

4 de novembro de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

29 de outubro de 2026

Última verificação

1 de outubro de 2026

Mais Informações

Termos relacionados a este estudo

Outros números de identificação do estudo

  • HREC 130619

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

SIM

Descrição do plano 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).

Prazo de Compartilhamento de IPD

Following analysis and article publication.

Critérios de acesso de compartilhamento 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.

Tipo de informação de suporte de compartilhamento de IPD

  • CIF

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .