Hypofractionation vs conventional radiation therapy for newly diagnosed diffuse intrinsic pontine glioma: A matched-cohort analysis

Geert O. Janssens, Marc H. Jansen, Selmer J. Lauwers, Peter J. Nowak, Foppe R. Oldenburger, Eric Bouffet, Frank Saran, Karin Kamphuis-Van Ulzen, Erik J. Van Lindert, Jolanda H. Schieving, Tom Boterberg, Gertjan J. Kaspers, Paul N. Span, Johannes H. Kaanders, Corrie E. Gidding, Darren Hargrave

Onderzoeksoutput: Bijdrage aan tijdschriftArtikelpeer review

78 Citaten (Scopus)

Samenvatting

Purpose: Despite conventional radiation therapy, 54 Gy in single doses of 1.8 Gy (54/1.8 Gy) over 6 weeks, most children with diffuse intrinsic pontine glioma (DIPG) will die within 1 year after diagnosis. To reduce patient burden, we investigated the role of hypofractionation radiation therapy given over 3 to 4 weeks. A 1:1 matched-cohort analysis with conventional radiation therapy was performed to assess response and survival. Methods and Materials: Twenty-seven children, aged 3 to 14, were treated according to 1 of 2 hypofractionation regimens over 3 to 4 weeks (39/3 Gy, n=16 or 44.8/2.8 Gy, n=11). All patients had symptoms for ≤3 months, ≥2 signs of the neurologic triad (cranial nerve deficit, ataxia, long tract signs), and characteristic features of DIPG on magnetic resonance imaging. Twenty-seven patients fulfilling the same diagnostic criteria and receiving at least 50/1.8 to 2.0 Gy were eligible for the matched-cohort analysis. Results: With hypofractionation radiation therapy, the overall survival at 6, 9, and 12 months was 74%, 44%, and 22%, respectively. Progression-free survival at 3, 6, and 9 months was 77%, 43%, and 12%, respectively. Temporary discontinuation of steroids was observed in 21 of 27 (78%) patients. No significant difference in median overall survival (9.0 vs 9.4 months; P=.84) and time to progression (5.0 vs 7.6 months; P=.24) was observed between hypofractionation vs conventional radiation therapy, respectively. Conclusions: For patients with newly diagnosed DIPG, a hypofractionation regimen, given over 3 to 4 weeks, offers equal overall survival with less treatment burden compared with a conventional regimen of 6 weeks.

Originele taal-2Engels
Pagina's (van-tot)315-320
Aantal pagina's6
TijdschriftInternational Journal of Radiation Oncology Biology Physics
Volume85
Nummer van het tijdschrift2
DOI's
StatusGepubliceerd - 1 feb. 2013
Extern gepubliceerdJa

Vingerafdruk

Duik in de onderzoeksthema's van 'Hypofractionation vs conventional radiation therapy for newly diagnosed diffuse intrinsic pontine glioma: A matched-cohort analysis'. Samen vormen ze een unieke vingerafdruk.

Citeer dit