C. Leaute-labreze et al., Saline spa water or combined water and UV-B for psoriasis vs conventional UV-B - Lessons from the Salies de Bearn randomized study, ARCH DERMAT, 137(8), 2001, pp. 1035-1039
Objective: To study the effects of UV-B therapy and saline spa water given
alone or in combination for the treatment of psoriasis.
Design: Randomized, controlled, comparative study with blinded observers.
Setting: Salies de Bearn, saline spa water center located in the southwest
of France.
Participants: Seventy-one adult patients with psoriasis with a Psoriasis Ar
ea and Severity Index (PASI) score greater than 10.
Intervention: Patients were randomly assigned to I of 3 treatments: spa wat
er alone (group A); UV-B 311-nm phototherapy alone (group B); and a combina
tion of the 2 therapies (group C). The 3 groups were treated on a daily bas
is 5 days a week for a total of 21 days.
Main Outcome Measures: Change in PASI score from baseline as determined by
an investigator blinded to randomization; variation in quality of life, adv
erse effects, and long-term effects (1 year after treatment). Results: Four
patients dropped out because of secondary effects. Efficacy was similar in
groups B and C, with changes in PASI of -64% and -55%, respectively at 3 w
eeks. For group A, change in PASI was -29%, thus showing a minor therapeuti
c effect of saline spa water alone and poor efficacy compared with groups B
and C (P<.001), More adverse effects were reported in groups A and C but d
id not reach significance. Combined saline spa water and UV-B therapy had n
o sparing effect on UV-B dosages. One year after treatment, no longterm ben
efit could be attributed specifically to a given regimen, but the patients
had overall significantly better PASI scores than at baseline.
Conclusions: Saline spa water alone had a minor therapeutic effect in psori
asis, and the beneficial effect of bathing to enhance phototherapy was not
demonstrated.