Subhasheenee Ganesan | Search PubMed

PubMed2026

Health-related quality of life after risk-reducing hysterectomy: a randomised vignette study.

BACKGROUND: Risk-reducing hysterectomy (RRH) is the most effective endometrial cancer preventive strategy. Understanding health-related quality-of-life using health-related utility-scores (HRUS) is essential for counselling, shared decision-making, and informing health-economic evaluations of endometrial cancer prevention. This study aimed to determine HRUS for premenopausal RRH, with and without bilateral salpingo-oophorectomy (BSO). METHODS: Preventing Endometrial-Cancers: Comparing Risk-Reducing Strategies (PRESCORES) (ISRCTN17432105) part-2 is a UK-based randomised vignette study. Following a robust development process, vignettes described four postoperative health-states for a 40-year-old otherwise-healthy woman: "RRH at 1-month", "RRH at 1-year", "RRH-BSO at 1-month", "RRH-BSO at 1-year". These were valued using EQ-5D by participants recruited from the UK general-population and HRUS calculated. Utilities were subsequently adjusted by age-and sex-matched general-population reference values. Association of variables was explored with ordinary-least-squares regression with non-parametric bootstrapping. FINDINGS: Overall, 1001 women were included and randomised to 1-of-4 groups. The mean-age(±SD) was 53.6 (±11.4) years. Mean(±SD) HRUS were 0.942 (±0.072) for "RRH at 1-year", 0.841 (±0.137) for "RRH-BSO at 1-year", 0.670 (±0.149) for "RRH at 1-month", and 0.733 (±0.190) for "RRH-BSO at 1-month", with significant difference between each group (p < 0.001). Adjusting for age-sex-matched population reference utilities, HRUS were 1.000(95% CI:1.00-1.00), 0.994(95% CI:0.97-1.00), 0.866(95% CI:0.84-0.90) and 0.791(95% CI:0.77-0.81), respectively. Participant factors associated with vignette valuations included age, obesity, heavy menstrual-bleeding, higher income and mixed/other ethnicity. CONCLUSION: This randomised study provides HRUS following premenopausal RRH with and without BSO at two postoperative time-points, with adjustment against the age-and sex-matched general reference-population. These values are of relevance for informing counselling of women at increased endometrial cancer-risk regarding RRH and for health-economic evaluations.

Humans↗

PubMed2025

Estimands for Clinical Effectiveness of Risk-Reducing Early Salpingectomy in Women With High Risk of Ovarian Cancer.

IMPORTANCE: Risk-reducing early-salpingectomy (RRES) and delayed oophorectomy (DO) is a novel 2-stage alternative prevention strategy to risk-reducing salpingo-oophorectomy (RRSO) that avoids detrimental consequences of premature menopause. However, direct data on the clinical effectiveness for ovarian cancer (OC) risk reduction are lacking. OBJECTIVE: To explore how to define clinical effectiveness from prospective cohort studies using the estimand framework and sample size requirements. DESIGN, SETTING, AND PARTICIPANTS: In this comparative effectiveness research study, estimand and analysis options were considered to evaluate the clinical effectiveness of RRES with DO by extending the UK PROTECTOR cohort study, a multicenter, prospective, observational, national cohort study (N = 1250 recruited from January 1, 2019, to December 31, 2024) evaluating RRES and DO for OC surgical prevention. Participants were premenopausal women 30 years or older at increased OC risk due to BRCA1/BRCA2 pathogenic variants. Participants could choose RRES, RRSO, or no surgery at entry. Sample size requirements used initial data (eg, age and BRCA1/2 distribution) from PROTECTOR (analysis undertaken from January 1, 2024, to December 31, 2025). MAIN OUTCOMES AND MEASURES: Incidence of OC after (not at) RRES and before or at DO in women with normal histologic analysis findings at surgery. The proportion of cancers prevented was estimated as the completement of the observed (O) to expected (E; assuming no preventive effect of surgery) number of cancers detected (1 - O/E). RESULTS: Initial data were obtained from 889 women in PROTECTOR (overall mean [SD] age, 39 [5] years), with 255 (28.7%) choosing RRSO (mean [SD] age, 42 [4] years), 405 (45.5%) choosing RRES (mean [SD] age, 38 [4] years), and 229 (25.7%) choosing no surgery (mean [SD], 38 [5] years). The preferred estimand outcome was OC incidence after surgery (RRES or RRSO) with a "while on intervention" strategy to account for intercurrent events. The primary target measure was the proportion of cancers prevented for RRES vs no surgery with superiority testing. The secondary target measure was noninferiority of RRES vs RRSO. An estimated 1150 RRES participants with 8 to 10 years of follow-up would provide approximately 92% power to show that 20% or more of cancers are prevented using a 1-sample binomial test of the O:E risk (external reference) at the 5% level under a range of assumptions and at least the same power for a noninferiority margin for the proportion of cancers prevented by RRES of those prevented by RRSO. Estimands based on incidence ratios had an infeasible sample size. CONCLUSIONS AND RELEVANCE: In this comparative effectiveness study of UK BRCA carriers, the estimand differed from other ongoing clinical effectiveness studies of RRES and DO. Advantages include direct use of expected risk at baseline (unknown at design stage), easier interpretation across cohorts than absolute risk differences, and providing a feasible recruitment target for PROTECTOR to evaluate clinical effectiveness.

Humans↗