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APPENDICES - NIHR Health Technology Assessment Programme

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DOI: 10.3310/hta14370 <strong>Health</strong> <strong>Technology</strong> <strong>Assessment</strong> 2010; Vol. 14: No. 37<br />

Study details Population details Treatment details Results Interpretation<br />

Authors’ conclusions<br />

ERCP with PDT<br />

seems to increase<br />

survival in patients<br />

with unresectable<br />

cholangiocarcinoma<br />

when compared with<br />

ERCP alone, although it<br />

remains to be proved<br />

whether this is due to<br />

PDT or the number or<br />

ERCP sessions<br />

Brief study appraisal<br />

The aims of this study<br />

at its inception are<br />

uncertain as the study<br />

began in 2001, but<br />

PDT only became<br />

available for use in<br />

2004. From this point<br />

on, PDT was offered<br />

to all patients, making<br />

it difficult to recruit<br />

groups with similar<br />

baseline characteristics.<br />

However, the authors<br />

acknowledged that the<br />

study design prevented<br />

definitive conclusions<br />

from being drawn<br />

Mortality At end of study 10 patients were still<br />

alive, eight being from the PDT group<br />

There was statistically significant prolonged<br />

survival in the PDT group (mean 16.2 mth, SD<br />

2.4) compared with the Stent-alone group (mean<br />

7.4 mth, SD 1.6), p < 0.003. Mortality rates were<br />

significantly lower in the PDT group at 3 mth (0%<br />

vs 28%, p = 0.01), and 6mth (16% vs 52%, p = 0.01),<br />

but not at 12 mth (56% vs 82%, p = 0.08) vs Stentalone<br />

group<br />

Morbidity Both groups had significantly decreased<br />

levels of serum bilirubin at 3 mth when compared<br />

to baseline levels (p = 0.008 for PDT and p = 0.0001<br />

for stent only), although there was no significant<br />

difference between the two groups in the degree<br />

of decrease (p = 0.78)<br />

QoL and return to normal activity Not<br />

assessed<br />

AEs Stent-alone group: 10 patients developed<br />

cholangitis (with two patients dying as a<br />

consequence). Four patients developed pancreatitis<br />

and one had duodenal perforation. Further results<br />

reported. PDT group: three patients experienced<br />

skin phototoxicity. Seven patients developed<br />

cholangitis, two developed cholecystitis, and two<br />

haemobilia. Further results reported<br />

Resource use Not assessed<br />

Trial treatments ERCP with PDT and stent vs<br />

ERCP with Stent alone<br />

Intervention Selective decompression of all<br />

opacified, dilated segments was attempted with<br />

bougie and balloon dilatation to assist in the<br />

placement of polyethylene stents<br />

Intravenous Photofrin at 2 mg/kg 48 hr prior to<br />

633-nm (± 3-nm) light from a 2000-mW diode<br />

laser, delivered through a 3-m length fibre having<br />

a 2.5-cm-long cylindrical diffuser at distal end<br />

(diffuser was inserted into a 10F sheath of a<br />

plastic stent)<br />

Photoactivation performed at 633 nm* with a<br />

light dose of 180 J/cm2 , fluence of 0.25 W/cm2 and<br />

duration of 750 s. One or two segments treated<br />

at discretion of endoscopist. PDT repeated at<br />

3-mth intervals when all stents were replaced<br />

(this was done earlier if premature occlusion or<br />

migration occurred)<br />

*Although reported as 620 nm in the paper, based<br />

on the type of laser used this appears to have<br />

been a typographic error<br />

Comparator Selective decompression of all<br />

opacified, dilated segments was attempted with<br />

bougie and balloon dilatation to assist in the<br />

placement of polyethylene stents (7F, 8.5F and<br />

10F in diameter). Repeated if indicated until<br />

patient refusal or death<br />

Treatment intention<br />

Palliative<br />

Type(s) of cancer and<br />

histology Non-resectable<br />

cholangiocarcinoma<br />

Main eligibility criteria<br />

Unclear, PDT offered after<br />

December 2004 to all<br />

patients with non-resectable<br />

cholangiocarcinoma or<br />

resectable lesions deemed<br />

inoperable<br />

Patient characteristics<br />

% Male: 50<br />

Age range: 26–94 yr<br />

Mean age: 66.6 yr<br />

Tumour extension: Bismuth<br />

I, 6%; Bismuth II, 19%;<br />

Bismuth III, 35%; Bismuth<br />

IV, 40%<br />

Further patient<br />

characteristics were<br />

reported<br />

Pathological diagnosis was<br />

confirmed in 69% of cases<br />

Concomitant treatment<br />

Twenty-two patients had<br />

chemotherapy and 19 had<br />

radiotherapy. All patients<br />

received periprocedure<br />

antibiotic prophylaxis<br />

Authors Kahaleh<br />

et al. (2008) 133<br />

Data source Full<br />

published paper<br />

Country USA<br />

Study design<br />

Non-RCT<br />

No. of<br />

participants<br />

Total: 48<br />

Intervention: 19<br />

Comparator: 29<br />

No. of recruiting<br />

centres One<br />

Follow-up<br />

period and<br />

frequency FU at<br />

1 mth and every<br />

3 mth thereafter<br />

(or earlier if<br />

there were<br />

complications)<br />

© 2010 Queen’s Printer and Controller of HMSO. All rights reserved.<br />

F, The ‘French size’ of the sheath used to introduce a stent.<br />

275

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