scholarly journals Preservation of fertility in patients with hematological malignancies

2020 ◽  
Vol 50 (7) ◽  
pp. 729-742 ◽  
Author(s):  
Masahiro Ashizawa ◽  
Yoshinobu Kanda
Keyword(s):  
Reproductive Medicine ◽  
Hematological Malignancies ◽  
Alkylating Agents ◽  
Healthcare Providers ◽  
High Dose ◽  
Medical Field ◽  
Preservation Of Fertility ◽  
Gonadal Toxicity ◽  
Total Body ◽  
Tissue Cryopreservation

Abstract Oncofertility is the medical field that bridges oncology and reproduction that seeks to give healthcare providers and patients the opportunity to optimize residual fertility. The treatment for hematological malignancies carries gonadal toxicity, so that the preservation of fertility should be considered in all patients in childhood, adolescence and young adulthood. Most patients who receive only chemotherapy remain fertile, whereas those who receive regimens consisting of high-dose alkylating agents or total body irradiation can develop permanent infertility. In postpubertal patients, there are established methods for preserving fertility, such as the cryopreservation of sperm, oocytes and embryos. Although ideally performed before the initiation of gonadotoxic treatment, these procedures for fertility preservation can be performed any time prior to the loss of gonadal function. In contrast, a standard option is not available in prepubertal patients, and the preservation of fertility must be sought through experimental methods. Future advances in reproductive medicine may overcome this limitation. Gonadal tissue cryopreservation might be performed in the hope that sperm or mature oocytes could later be extracted from cryopreserved tissue. Healthcare providers, including hematologists, reproductive endocrinologists, nurses, clinical psychotherapists and embryologists, need to optimize the patient’s fertility through shared decision-making while always remaining aware of the rapidly progressing developments in reproductive medicine.

Tumorigenesis in High-Dose Total Body Irradiated Rhesus Monkeys--A Life Span Study

2003 ◽  
Vol 31 (2) ◽  
pp. 209-213 ◽  
Author(s):  
Carel F. Hollander ◽  
Chris Zurcher ◽  
Johan J. Broerse
Keyword(s):  
Life Span ◽  
Rhesus Monkeys ◽  
High Dose ◽  
Life Span Study ◽  
Total Body

scholarly journals Randomised controlled trial of conditioning regimen for cord blood transplantation for adult myeloid malignancies comparing high-dose cytarabine/cyclophosphamide/total body irradiation with versus without G-CSF priming: G-CONCORD study protocol

BMJ Open ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. e040467
Author(s):  
Seitaro Terakura ◽  
Takaaki Konuma ◽  
Masatsugu Tanaka ◽  
Yukiyasu Ozawa ◽  
Makoto Onizuka ◽  
...  
Keyword(s):  
Cord Blood ◽  
Study Protocol ◽  
Total Body Irradiation ◽  
Graft Failure ◽  
Cord Blood Transplantation ◽  
Conditioning Regimen ◽  
High Dose ◽  
Blood Transplantation ◽  
Total Body ◽  
Randomised Controlled

IntroductionA better long-term quality of life after umbilical cord blood transplantation (CBT) is observed compared with transplants from other alternative donors, whereas graft failure and relapses after CBT are still major issues. To minimise graft failure and relapse after CBT, intensification of conditioning by the addition of high-dose cytosine arabinoside (CA) and concomitant continuous use of granulocyte-colony stimulating factor (G-CSF) are reported to convey a significantly better survival after CBT in some retrospective studies. To confirm the effect of G-CSF plus CA combination, in addition to the standard conditioning regimen, cyclophosphamide (CY)/total body irradiation (TBI), we design a randomised controlled study comparing CA/CY/TBI with versus without G-CSF priming (G-CSF combined conditioned cord blood transplantation [G-CONCORD] study).Methods and analysisThis is a multicentre, open-label, randomised phase III study that aimed to compare G-CSF+CA/CY/TBI as a conditioning regimen for CBT with CA/CY/TBI. Patients with acute myeloid leukaemia or myelodysplastic syndrome, aged 16–55 years, are eligible. The target sample size is 160 and the registration period is 4 years. The primary endpoint is the 2-year disease-free survival rate after CBT. The secondary endpoints are overall survival, relapse, non-relapse mortality, acute and chronic graft-versus-host disease, engraftment rate, time to neutrophil recovery, short-term adverse events, incidence of infections and causes of death.This study employs a single one-to-one web-based randomisation between the with-G-CSF versus without-G-CSF groups after patient registration. Combination of high-dose CA and CY/TBI in both groups is used for conditioning.Ethics and disseminationThe study protocol was approved by the central review board, Nagoya University Certified Review Board, after the enforcement of the Clinical Trials Act in Japan. The manuscripts presenting data from this study will be submitted for publication in quality peer-reviewed medical journals. Study findings will be disseminated via presentations at national/international conferences and peer-reviewed journals.Trial registration numbersUMIN000029947 and jRCTs041180059.

O-185 Evaluation of the decision-making process of girls with Turner syndrome and their parents considering ovarian tissue cryopreservation

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
S. Van der Coelen ◽  
M Schleedoorn ◽  
S Nadesapillai ◽  
R Peek ◽  
D Braat ◽  
...  
Keyword(s):  
Decision Making ◽  
Focus Group ◽  
Focus Groups ◽  
Turner Syndrome ◽  
Ovarian Tissue ◽  
Healthcare Providers ◽  
Ovarian Tissue Cryopreservation ◽  
Decision Making Process ◽  
Literature Research ◽  
Tissue Cryopreservation

Abstract Study question What are the experiences with the decision-making process of girls with Turner syndrome (TS) considering ovarian tissue cryopreservation (OTC), their parents and healthcare providers? Summary answer Offering a new option to preserve fertility in TS caused unrealistic hope leading to challenges for healthcare providers to fulfil the ideal of informed consent. What is known already Due to premature ovarian insufficiency, girls with TS have only a small chance of genetic offspring. OTC might increase these odds. Healthcare providers and scientist are still cautious in offering OTC to girls with TS because of the many uncertainties regarding OTC in this patient group. Hence, OTC is now offered to girls with TS between 2 and 18 years old in a research setting: the TurnerFertility study. Study design, size, duration A retrospective qualitative study consisting of a survey and focus groups. Within a year after counselling, families (n = 132) received a survey with 30 questions regarding their experiences with the decision-making process and also an invitation for a focus group. The focus groups were conducted between January and October 2019 and lasted 51-84 minutes. The topic lists were based on literature research and survey results. Results were analysed following a thematic analysis approach. Participants/materials, setting, methods This is a sub-study of the prospective intervention study within an academical medical centre. Focus groups were composed through purposive sampling. Focus group 1 (FG1) consisted of five gynaecologists involved in counselling, FG2 with seven paediatricians who referred girls for counselling, FG3 with nine parents of girls with TS between 2 and 12 years old and FG4 with three parents of girls with TS between 13 and 17 years old. Main results and the role of chance 90% of survey respondents appreciated counselling regarding fertility options and considered it an enrichment of existing healthcare. The individual consultation was rated as most contributing by 66% of the survey respondents, followed by the information meeting (37%) and decision aid (3%). The focus groups revealed that many had not discussed options for future parenthood with a healthcare provider before. Girls with TS and their parents indicated that the option of OTC raised hope for future genetic offspring, and at once made them feel like they had no choice but to take this chance. The small chance of success did not influence the decision for families who opted for OTC. Some parents who had to decide for their young daughter accepted OTC to give their daughter the option to decide herself whether to make use of the cryopreserved tissue later in life. Gynaecologists found it challenging to truly make families grasp a realistic perspective of OTC in TS and the associated mental and physical risks. Gynaecologists and paediatricians struggled with conflicting moral principles of non-maleficence against respect for autonomy: healthcare providers recognized the scientific relevance for the TS population, while it felt inconsistent with the disproportionate burden for some individual patients. Limitations, reasons for caution Because there was no validated survey for this topic in TS, we developed a survey based on literature research and experiences of a dedicated TS team. Among the survey responders and focus group participants a greater proportion decided for OTC compared to the overall counselled group (75% vs 60%). Wider implications of the findings This study gives insight in the issues to consider when implementing new technologies regarding fertility, in which parents have to decide for their child, where it is expected that anticipated decision regret plays a major role, or where healthcare providers experience conflicting duties as scientist and physician. Trial registration number not applicable

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