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2015 ; 19
(49
): 1-490
Nephropedia Template TP
gab.com Text
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English Wikipedia
Ablative therapy for people with localised prostate cancer: a systematic review
and economic evaluation
#MMPMID26140518
Ramsay CR
; Adewuyi TE
; Gray J
; Hislop J
; Shirley MD
; Jayakody S
; MacLennan G
; Fraser C
; MacLennan S
; Brazzelli M
; N'Dow J
; Pickard R
; Robertson C
; Rothnie K
; Rushton SP
; Vale L
; Lam TB
Health Technol Assess
2015[Jul]; 19
(49
): 1-490
PMID26140518
show ga
BACKGROUND: For people with localised prostate cancer, active treatments are
effective but have significant side effects. Minimally invasive treatments that
destroy (or ablate) either the entire gland or the part of the prostate with
cancer may be as effective and cause less side effects at an acceptable cost.
Such therapies include cryotherapy, high-intensity focused ultrasound (HIFU) and
brachytherapy, among others. OBJECTIVES: This study aimed to determine the
relative clinical effectiveness and cost-effectiveness of ablative therapies
compared with radical prostatectomy (RP), external beam radiotherapy (EBRT) and
active surveillance (AS) for primary treatment of localised prostate cancer, and
compared with RP for salvage treatment of localised prostate cancer which has
recurred after initial treatment with EBRT. DATA SOURCES: MEDLINE (1946 to March
week 3, 2013), MEDLINE In-Process & Other Non-Indexed Citations (29 March 2013),
EMBASE (1974 to week 13, 2013), Bioscience Information Service (BIOSIS) (1956 to
1 April 2013), Science Citation Index (1970 to 1 April 2013), Cochrane Central
Register of Controlled Trials (CENTRAL) (issue 3, 2013), Cochrane Database of
Systematic Reviews (CDSR) (issue 3, 2013), Database of Abstracts of Reviews of
Effects (DARE) (inception to March 2013) and Health Technology Assessment (HTA)
(inception to March 2013) databases were searched. Costs were obtained from NHS
sources. REVIEW METHODS: Evidence was drawn from randomised controlled trials
(RCTs) and non-RCTs, and from case series for the ablative procedures only, in
people with localised prostate cancer. For primary therapy, the ablative
therapies were cryotherapy, HIFU, brachytherapy and other ablative therapies. The
comparators were AS, RP and EBRT. For salvage therapy, the ablative therapies
were cryotherapy and HIFU. The comparator was RP. Outcomes were cancer related,
adverse effects (functional and procedural) and quality of life. Two reviewers
extracted data and carried out quality assessment. Meta-analysis used a Bayesian
indirect mixed-treatment comparison. Data were incorporated into an individual
simulation Markov model to estimate cost-effectiveness. RESULTS: The searches
identified 121 studies for inclusion in the review of patients undergoing primary
treatment and nine studies for the review of salvage treatment. Cryotherapy [3995
patients; 14 case series, 1 RCT and 4 non-randomised comparative studies
(NRCSs)], HIFU (4000 patients; 20 case series, 1 NRCS) and brachytherapy (26,129
patients; 2 RCTs, 38 NRCSs) studies provided limited data for meta-analyses. All
studies were considered at high risk of bias. There was no robust evidence that
mortality (4-year survival 93% for cryotherapy, 99% for HIFU, 91% for EBRT) or
other cancer-specific outcomes differed between treatments. For functional and
quality-of-life outcomes, the paucity of data prevented any definitive
conclusions from being made, although data on incontinence rates and erectile
dysfunction for all ablative procedures were generally numerically lower than for
non-ablative procedures. The safety profiles were comparable with existing
treatments. Studies reporting the use of focal cryotherapy suggested that
incontinence rates may be better than for whole-gland treatment. Data on AS,
salvage treatment and other ablative therapies were too limited. The
cost-effectiveness analysis confirmed the uncertainty from the clinical review
and that there is no technology which appears superior, on the basis of current
evidence, in terms of average cost-effectiveness. The probabilistic sensitivity
analyses suggest that a number of ablative techniques are worthy of further
research. LIMITATIONS: The main limitations were the quantity and quality of the
data available on cancer-related outcomes and dysfunction. CONCLUSIONS: The
findings indicate that there is insufficient evidence to form any clear
recommendations on the use of ablative therapies in order to influence current
clinical practice. Research efforts in the use of ablative therapies in the
management of prostate cancer should now be concentrated on the performance of
RCTs and the generation of standardised outcomes. STUDY REGISTRATION: This study
is registered as PROSPERO CRD42012002461. FUNDING: The National Institute for
Health Research Health Technology Assessment programme.
|*Ablation Techniques/adverse effects/economics/methods/statistics & numerical
data
[MESH]
|*Quality-Adjusted Life Years
[MESH]
|Aged
[MESH]
|Aged, 80 and over
[MESH]
|Cost-Benefit Analysis
[MESH]
|Databases, Bibliographic
[MESH]
|Erectile Dysfunction/etiology
[MESH]
|Humans
[MESH]
|Incidence
[MESH]
|Long Term Adverse Effects
[MESH]
|Male
[MESH]
|Middle Aged
[MESH]
|Neoplasm Recurrence, Local/epidemiology
[MESH]
|Outcome and Process Assessment, Health Care/economics/*statistics & numerical
data
[MESH]