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Lee WR, Desilvio M, Lawton CF, Gillin MT, Morton GC, Firat S, Baikadi M, Kuettel MR, Greven KM, Sandler HM. A phase II study of external beam radiation therapy combined with permanent source brachytherapy for intermediate risk clinically localized adenocarcinoma of the prostate: Preliminary results of RTOG P-0019. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.4568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- W. R. Lee
- Wake Forest University, Winston Salem, NC; RTOG, Philadelphia, PA; Medical College of Wisconsin, Milwaukee, WI; M.D. Anderson Hospital, Houston, TX; Toronto-Sunnybrook Regional Cancer Center, Toronto, ON, Canada; University of Pennsylvania, Philadelphia, PA; Roswell Park Cancer Institute, Buffalo, NY; University of Michigan, Ann Arbor, MI
| | - M. Desilvio
- Wake Forest University, Winston Salem, NC; RTOG, Philadelphia, PA; Medical College of Wisconsin, Milwaukee, WI; M.D. Anderson Hospital, Houston, TX; Toronto-Sunnybrook Regional Cancer Center, Toronto, ON, Canada; University of Pennsylvania, Philadelphia, PA; Roswell Park Cancer Institute, Buffalo, NY; University of Michigan, Ann Arbor, MI
| | - C. F. Lawton
- Wake Forest University, Winston Salem, NC; RTOG, Philadelphia, PA; Medical College of Wisconsin, Milwaukee, WI; M.D. Anderson Hospital, Houston, TX; Toronto-Sunnybrook Regional Cancer Center, Toronto, ON, Canada; University of Pennsylvania, Philadelphia, PA; Roswell Park Cancer Institute, Buffalo, NY; University of Michigan, Ann Arbor, MI
| | - M. T. Gillin
- Wake Forest University, Winston Salem, NC; RTOG, Philadelphia, PA; Medical College of Wisconsin, Milwaukee, WI; M.D. Anderson Hospital, Houston, TX; Toronto-Sunnybrook Regional Cancer Center, Toronto, ON, Canada; University of Pennsylvania, Philadelphia, PA; Roswell Park Cancer Institute, Buffalo, NY; University of Michigan, Ann Arbor, MI
| | - G. C. Morton
- Wake Forest University, Winston Salem, NC; RTOG, Philadelphia, PA; Medical College of Wisconsin, Milwaukee, WI; M.D. Anderson Hospital, Houston, TX; Toronto-Sunnybrook Regional Cancer Center, Toronto, ON, Canada; University of Pennsylvania, Philadelphia, PA; Roswell Park Cancer Institute, Buffalo, NY; University of Michigan, Ann Arbor, MI
| | - S. Firat
- Wake Forest University, Winston Salem, NC; RTOG, Philadelphia, PA; Medical College of Wisconsin, Milwaukee, WI; M.D. Anderson Hospital, Houston, TX; Toronto-Sunnybrook Regional Cancer Center, Toronto, ON, Canada; University of Pennsylvania, Philadelphia, PA; Roswell Park Cancer Institute, Buffalo, NY; University of Michigan, Ann Arbor, MI
| | - M. Baikadi
- Wake Forest University, Winston Salem, NC; RTOG, Philadelphia, PA; Medical College of Wisconsin, Milwaukee, WI; M.D. Anderson Hospital, Houston, TX; Toronto-Sunnybrook Regional Cancer Center, Toronto, ON, Canada; University of Pennsylvania, Philadelphia, PA; Roswell Park Cancer Institute, Buffalo, NY; University of Michigan, Ann Arbor, MI
| | - M. R. Kuettel
- Wake Forest University, Winston Salem, NC; RTOG, Philadelphia, PA; Medical College of Wisconsin, Milwaukee, WI; M.D. Anderson Hospital, Houston, TX; Toronto-Sunnybrook Regional Cancer Center, Toronto, ON, Canada; University of Pennsylvania, Philadelphia, PA; Roswell Park Cancer Institute, Buffalo, NY; University of Michigan, Ann Arbor, MI
| | - K. M. Greven
- Wake Forest University, Winston Salem, NC; RTOG, Philadelphia, PA; Medical College of Wisconsin, Milwaukee, WI; M.D. Anderson Hospital, Houston, TX; Toronto-Sunnybrook Regional Cancer Center, Toronto, ON, Canada; University of Pennsylvania, Philadelphia, PA; Roswell Park Cancer Institute, Buffalo, NY; University of Michigan, Ann Arbor, MI
| | - H. M. Sandler
- Wake Forest University, Winston Salem, NC; RTOG, Philadelphia, PA; Medical College of Wisconsin, Milwaukee, WI; M.D. Anderson Hospital, Houston, TX; Toronto-Sunnybrook Regional Cancer Center, Toronto, ON, Canada; University of Pennsylvania, Philadelphia, PA; Roswell Park Cancer Institute, Buffalo, NY; University of Michigan, Ann Arbor, MI
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Choo R, DeBoer G, Klotz L, Danjoux C, Morton GC, Rakovitch E, Fleshner N, Bunting P, Kapusta L, Hruby G. PSA doubling time of prostate carcinoma managed with watchful observation alone. Int J Radiat Oncol Biol Phys 2001; 50:615-20. [PMID: 11395227 DOI: 10.1016/s0360-3016(01)01511-5] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
PURPOSE To study prostate-specific antigen (PSA) doubling time of untreated, favorable grade, prostate carcinoma. METHODS AND MATERIALS A prospective single-arm cohort study has been in progress to assess the feasibility of a watchful observation protocol with selective delayed intervention using clinical, histologic, or PSA progression as treatment indication in untreated, localized, favorable grade prostate adenocarcinoma (T1b-T2bN0 M0, Gleason Score < or = 7, and PSA < or = 15 ng/mL). Patients are conservatively managed with watchful observation alone, as long as they do not meet the arbitrarily defined disease progression criteria. Patients are followed regularly and undergo blood tests including PSA at each visit. PSA doubling time (Td) is estimated from a linear regression of ln(PSA) on time, assuming a simple exponential growth model. RESULTS As of March 2000, 134 patients have been on the study for a minimum of 12 months (median, 24; range, 12-52) and have a median frequency of PSA measurement of 7 times (range, 3-15). Median age is 70 years. Median PSA at enrollment is 6.3 (range, 0.5-14.6). The distribution of Td is as follows: <2 years, 19 patients; 2-5 years, 46; 5-10 years, 25; 10-20 years, 11; 20-50 years, 6; > 50 years, 27. The median Td is 5.1 years. In 44 patients (33%), Td is greater than 10 years. There was no correlation between Td and patient age, clinical T stage, Gleason score, or initial PSA level. CONCLUSION Td of untreated prostate cancer varies widely. In our cohort, 33% have Td > 10 years. Td may be a useful tool to guide treatment intervention for patients managed conservatively with watchful observation alone.
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Affiliation(s)
- R Choo
- Toronto-Sunnybrook Regional Cancer Center, University of Toronto, Toronto, Ontario, Canada.
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