The Brain Tumor Cooperative Group NIH Trial 87-01: a randomized comparison of surgery, external radiotherapy, and carmustine versus surgery, interstitial radiotherapy boost, external radiation therapy, and carmustine.
OBJECTIVE
The objective of the Brain Tumor Cooperative Group NIH Trial 87-01 trial was to investigate the effect of additional implanted radiation therapy in newly diagnosed patients with pathologically confirmed malignant gliomas.


METHODS
The study involved a randomized comparison of surgery, external beam radiotherapy, and carmustine (BCNU) versus surgery, external beam therapy, interstitial radiotherapy boost, and BCNU in newly diagnosed malignant gliomas. (125)I was chosen as best suited for this effort because it allowed preimplantation planning and postimplantation quality assurance review. Two hundred ninety-nine patients met the eligibility criteria and were randomized into the two arms of the study between December 1987 and April 1994. Follow-up continued for an additional 3 years. Twenty-nine patients were identified as having committed protocol violations and were excluded, resulting in 270 subjects in the Valid Study Group. One hundred thirty-seven patients received external beam radiation and BCNU, and 133 underwent the (125)I implantation plus external beam radiation and BCNU therapy.


RESULTS
The overall median survival for the Valid Study Group was 64.3 weeks. The median survival for patients receiving additional therapy of (125)I was 68.1 weeks, and median survival for those receiving only external beam radiation and BCNU was 58.8 weeks. The cumulative proportion surviving between the two treatment groups was not statistically significantly different (log-rank test, P = 0.101). As in other studies in the literature, age, Karnofsky score, and pathology were predictors of mortality. Additional analyses incorporating an adjustment for these prognostic variables, either in a stratified analysis or Cox proportional hazards model, did not result in statistically significant differences in the cumulative proportion of patients surviving between the two treatment groups.


CONCLUSIONS
We conclude that there is no long-term survival advantage of increased radiation dose with (125)I seeds in newly diagnosed glioma patients.
rselker@msn.com
Robert G
RG
Selker
William R
WR
Shapiro
Peter
P
Burger
Margaret S
MS
Blackwood
Vincent C
VC
Arena
John C
JC
Gilder
Mark G
MG
Malkin
John J
JJ
Mealey
John H
JH
Neal
Jeffrey
J
Olson
James T
JT
Robertson
Gene H
GH
Barnett
Stephen
S
Bloomfield
Robert
R
Albright
Fred H
FH
Hochberg
Emile
E
Hiesiger
Sylvan
S
Green
D018906:Antineoplastic Agents, Alkylating / Q000627:therapeutic use*; D001918:Brachytherapy; D001932:Brain Neoplasms / Q000628:therapy*; D002330:Carmustine / Q000627:therapeutic use*; D003131:Combined Modality Therapy; D004307:Dose-Response Relationship, Radiation; D005260:Female; D005910:Glioma / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D019635:Neurosurgical Procedures; D010865:Pilot Projects; D011785:Quality Assurance, Health Care; D011878:Radiotherapy / Q000379:methods*; D016019:Survival Analysis
D018906:Antineoplastic Agents, Alkylating; D002330:Carmustine