Chemotherapy As an Alternative to Radiotherapy in the Treatment of Stage IIA and IIB Testicular Seminoma: A Spanish Germ Cell Cancer Group Study

2008 ◽  
Vol 26 (33) ◽  
pp. 5416-5421 ◽  
Author(s):  
Xavier Garcia-del-Muro ◽  
Pablo Maroto ◽  
Josep Gumà ◽  
Javier Sastre ◽  
Marta López Brea ◽  
...  
Keyword(s):  
Clinical Stage ◽  
Cell Cancer ◽  
Survival Rates ◽  
Progression Free Survival ◽  
Complete Response ◽  
Treatment Modalities ◽  
Testicular Seminoma ◽  
Cancer Group ◽  
Pure Seminoma

Purpose To assess the long-term efficacy and toxicity of front-line cisplatin-based chemotherapy in patients with stage IIA or IIB testicular seminoma. Patients and Methods Untreated patients with pure seminoma of the testis after orchiectomy, with clinical stage IIA or IIB, were considered eligible for this prospective observational study. Chemotherapy consisted of either four cycles of cisplatin and etoposide or three cycles of cisplatin, etoposide, and bleomycin. Results Between April 1994 and March 2003, 72 patients were entered onto the study at 26 participating centers. Eighteen patients had stage IIA disease, and 54 patients had stage IIB disease. Eighty-three percent of patients achieved complete response, and 17% achieved partial response with residual mass. After a median follow-up time of 71.5 months, six patients with stage IIB disease experienced relapse, and one of these patients died as a result of seminoma. Three patients experienced non–seminoma-related deaths (two died from a further esophageal carcinoma, and one died from an upper digestive hemorrhage). The estimated 5-year progression-free survival rates for patients with stage IIA or IIB disease were 100% and 87% (95% CI, 77.5% to 97%), respectively. Five-year progression-free and overall survival rates for the whole group were 90% (95% CI, 82% to 98%) and 95% (95% CI, 89% to 100%), respectively. Severe granulocytopenia and thrombocytopenia were observed in eight and two patients, respectively. Mild to moderate emesis, stomatitis, and diarrhea were the most common nonhematologic effects. Conclusion Chemotherapy is a highly effective and well-tolerated treatment for patients with stage IIA or IIB seminoma and represents an available alternative that could avoid some of the serious late effects associated with radiotherapy. Further studies focusing on long-term toxicities of different treatment modalities are needed.

scholarly journals Long-term efficacy of imatinib mesylate in patients with advanced Tenosynovial Giant Cell Tumor

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
F. G. M. Verspoor ◽  
M. J. L. Mastboom ◽  
G. Hannink ◽  
R. G. Maki ◽  
A. Wagner ◽  
...  
Keyword(s):  
Giant Cell ◽  
Imatinib Mesylate ◽  
Locally Advanced ◽  
Survival Rates ◽  
Progression Free Survival ◽  
Complete Response ◽  
The United States ◽  
Long Term Effects ◽  
Giant Cell Tumors

Abstract Tenosynovial giant cell tumors (TGCT), are rare colony stimulating factor-1(CSF-1)-driven proliferative disorders affecting joints. Diffuse-type TGCT often causes significant morbidity due to local recurrences necessitating multiple surgeries. Imatinib mesylate (IM) blocks the CSF-1 receptor. This study investigated the long term effects of IM in TGCT. We conducted an international multi-institutional retrospective study to assess the activity of IM: data was collected anonymously from individual patients with locally advanced, recurrent or metastatic TGCT. Sixty-two patients from 12 institutions across Europe, Australia and the United States were identified. Four patients with metastatic TGCT progressed rapidly on IM and were excluded for further analyses. Seventeen of 58 evaluable patients achieved complete response (CR) or partial response (PR). One- and five-year progression-free survival rates were 71% and 48%, respectively. Thirty-eight (66%) patients discontinued IM after a median of 7 (range 1–80) months. Reported adverse events in 45 (78%) patients were among other edema (48%) and fatigue (50%), mostly grade 1–2 (89%). Five patients experienced grade 3–4 toxicities. This study confirms, with additional follow-up, the efficacy of IM in TGCT. In responding cases we confirmed prolonged IM activity on TGCT symptoms even after discontinuation, but with high rates of treatment interruption and additional treatments.

scholarly journals Therapy of clinical stage IIA and IIB seminoma: a systematic review

2021 ◽  
Author(s):  
Julia Heinzelbecker ◽  
Stefanie Schmidt ◽  
Julia Lackner ◽  
Jonas Busch ◽  
Carsten Bokemeyer ◽  
...  
Keyword(s):  
Systematic Review ◽  
Comparative Studies ◽  
Randomized Clinical Trials ◽  
Clinical Stage ◽  
Treatment Options ◽  
Survival Rates ◽  
Treatment Modalities ◽  
Retroperitoneal Lymph Node Dissection ◽  
Cancer Specific Survival

Abstract Purpose The optimal treatment for clinical stage (CS) IIA/IIB seminomas is still controversial. We evaluated current treatment options. Methods A systematic review was performed. Only randomized clinical trials and comparative studies published from January 2010 until February 2021 were included. Search items included: seminoma, CS IIA, CS IIB and therapy. Outcome parameters were relapse rate (RR), relapse-free (RFS), overall and cancer-specific survival (OS, CSS). Additionally, acute and long-term side effects including secondary malignancies (SMs) were analyzed. Results Seven comparative studies (one prospective and six retrospective) were identified with a total of 5049 patients (CS IIA: 2840, CS IIB: 2209). The applied treatment modalities were radiotherapy (RT) (n = 3049; CS IIA: 1888, CSIIB: 1006, unknown: 155) and chemotherapy (CT) or no RT (n = 2000; CS IIA: 797, CS IIB: 1074, unknown: 129). In CS IIA, RRs ranged from 0% to 4.8% for RT and 0% for CT. Concerning CS IIB RRs of 9.5%–21.1% for RT and of 0%–14.2% for CT have been reported. 5-year OS ranged from 90 to 100%. Only two studies reported on treatment-related toxicities. Conclusions RT and CT are the most commonly applied treatments in CS IIA/B seminoma. In CS IIA seminomas, RRs after RT and CT are similar. However, in CS IIB, CT seems to be more effective. Survival rates of CS IIA/B seminomas are excellent. Consequently, long-term toxicities and SMs are important survivorship issues. Alternative treatment approaches, e.g., retroperitoneal lymph node dissection (RPLND) or dose-reduced sequential CT/RT are currently under prospective investigation.

Long-term survival of patients with metastatic melanoma (MM) treated with dacarbazine (DTIC) or temozolomide (TMZ)

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 9054-9054
Author(s):  
C. Kim ◽  
C. W. Lee ◽  
R. Klasa ◽  
A. Shah ◽  
K. J. Savage
Keyword(s):  
Metastatic Melanoma ◽  
Tumor Biology ◽  
Survival Rates ◽  
Progression Free Survival ◽  
Complete Response ◽  
Similar Efficacy ◽  
Limited Information ◽  
Term Survival ◽  
Long Term Survival

9054 Background: Patients with metastatic melanoma (MM) generally have a poor prognosis, with a median survival of 6 to 9 months. There is a small proportion of patients who achieve long term survival (LTS), however, it is unclear whether LTS reflects sensitivity to systemic therapy, indolent tumor biology or host immune factors. Dacarbazine (DTIC) is the only approved chemotherapy for the treatment of MM, although temozolomide (TMZ) has similar efficacy. There is limited information as to the frequency of complete response (CR) following DTIC or TMZ, duration of response and whether LTS occurs only in patients who achieve a CR. We sought to identify all patients with MM treated with either DTIC (alone or in combinations) or TMZ at the BC Cancer Agency (BCCA) who achieved LTS defined as survival ≥ 18 months from the time of administration of chemotherapy. Methods: All patients with MM treated with either DTIC or TMZ from January 1, 1988 to February 1, 2006 were identified in the BCCA pharmacy database. The BCCA surveillance and outcomes unit (SAO) was utilized to identify cases of LTS. CR was defined as disappearance of all disease by diagnostic imaging. Given the retrospective nature of the analysis, progressive disease (PD) was defined as any tumor growth, and partial response or stable disease (PR/SD) were combined. Results: In the 18-year period reviewed, 397 patients with MM were treated with DTIC (n= 349) or TMZ (n=48). Of these, 45 patients met the criterion of LTS and had the following characteristics: median age 53 (range 22–86); male 67 %; ocular primary 7%; non-pulmonary visceral metastases 38%; DTIC 11.7% (41/349), TMZ 8.3% (4/48). The best response to DTIC or TMZ documented was: CR 18%, PR/SD 67%, PD 13%. The 5-year overall and progression-free survival rates were 33% and 12%, respectively. Eleven patients survived > 5 years (range 5–27.5), and 6 patients remain in remission (5 CR, 1 PR). Disease progression occurred in 5 patients in < 1 year however, they remain alive for at least 5 years (range 5.2–17.9). Conclusions: LTS occurs in patients with MM treated with either DTIC or TMZ. However, a minority have a sustained response following chemotherapy, and most cases of LTS are likely the result of indolent disease or host biology. No significant financial relationships to disclose.

Herbal Medicine for Glioblastoma: Current and Future Prospects

2020 ◽  
Vol 16 (8) ◽  
pp. 1022-1043
Author(s):  
Imran Khan ◽  
Sadaf Mahfooz ◽  
Mustafa A. Hatiboglu
Keyword(s):  
Cell Proliferation ◽  
Survival Rates ◽  
Standard Of Care ◽  
Natural Compounds ◽  
Treatment Modalities ◽  
Normal Brain ◽  
The Central Nervous System ◽  
Cycle Regulation ◽  
Immense Potential

Background: Glioblastoma is one of the most aggressive and devastating tumours of the central nervous system with short survival time. Glioblastoma usually shows fast cell proliferation and invasion of normal brain tissue causing poor prognosis. The present standard of care in patients with glioblastoma includes surgery followed by radiotherapy and temozolomide (TMZ) based chemotherapy. Unfortunately, these approaches are not sufficient to lead a favorable prognosis and survival rates. As the current approaches do not provide a long-term benefit in those patients, new alternative treatments including natural compounds, have drawn attention. Due to their natural origin, they are associated with minimum cellular toxicity towards normal cells and it has become one of the most attractive approaches to treat tumours by natural compounds or phytochemicals. Objective: In the present review, the role of natural compounds or phytochemicals in the treatment of glioblastoma describing their efficacy on various aspects of glioblastoma pathophysiology such as cell proliferation, apoptosis, cell cycle regulation, cellular signaling pathways, chemoresistance and their role in combinatorial therapeutic approaches was described. Methods: Peer-reviewed literature was extracted using Pubmed, EMBASE Ovid and Google Scholar to be reviewed in the present article. Conclusion: Preclinical data available in the literature suggest that phytochemicals hold immense potential to be translated into treatment modalities. However, further clinical studies with conclusive results are required to implement phytochemicals in treatment modalities.

Treatment of Children With Medulloblastomas With Reduced-Dose Craniospinal Radiation Therapy and Adjuvant Chemotherapy: A Children's Cancer Group Study

1999 ◽  
Vol 17 (7) ◽  
pp. 2127-2127 ◽  
Author(s):  
Roger J. Packer ◽  
Joel Goldwein ◽  
H. Stacy Nicholson ◽  
L. Gilbert Vezina ◽  
Jeffrey C. Allen ◽  
...  
Keyword(s):  
Radiation Therapy ◽  
Adjuvant Chemotherapy ◽  
Progressive Disease ◽  
Survival Rates ◽  
Progression Free Survival ◽  
Tumor Site ◽  
Local Tumor ◽  
Reduced Dose ◽  
Craniospinal Radiation ◽  
Cancer Group

PURPOSE: Medulloblastoma is the most common malignant brain tumor of childhood. After treatment with surgery and radiation therapy, approximately 60% of children with medulloblastoma are alive and free of progressive disease 5 years after diagnosis, but many have significant neurocognitive sequelae. This study was undertaken to determine the feasibility and efficacy of treating children with nondisseminated medulloblastoma with reduced-dose craniospinal radiotherapy plus adjuvant chemotherapy. PATIENTS AND METHODS: Over a 3-year period, 65 children between 3 and 10 years of age with nondisseminated medulloblastoma were treated with postoperative, reduced-dose craniospinal radiation therapy (23.4 Gy) and 55.8 Gy of local radiation therapy. Adjuvant vincristine chemotherapy was administered during radiotherapy, and lomustine, vincristine, and cisplatin chemotherapy was administered during and after radiation. RESULTS: Progression-free survival was 86% ± 4% at 3 years and 79% ± 7% at 5 years. Sites of relapse for the14 patients who developed progressive disease included the local tumor site alone in two patients, local tumor site and disseminated disease in nine, and nonprimary sites in three. Brainstem involvement did not adversely affect outcome. Therapy was relatively well tolerated; however, the dose of cisplatin had to be modified in more than 50% of patients before the completion of treatment. One child died of pneumonitis and sepsis during treatment. CONCLUSION: These overall survival rates compare favorably to those obtained in studies using full-dose radiation therapy alone or radiation therapy plus chemotherapy. The results suggest that reduced-dose craniospinal radiation therapy and adjuvant chemotherapy during and after radiation is a feasible approach for children with nondisseminated medulloblastoma.

Phase III Trial Comparing Radical Radiotherapy With and Without Cisplatin Chemotherapy in Patients With Advanced Squamous Cell Cancer of the Cervix

2002 ◽  
Vol 20 (4) ◽  
pp. 966-972 ◽  
Author(s):  
R. Pearcey ◽  
M. Brundage ◽  
P. Drouin ◽  
J. Jeffrey ◽  
D. Johnston ◽  
...  
Keyword(s):  
Squamous Cell ◽  
Squamous Cell Cancer ◽  
Cell Cancer ◽  
Survival Rates ◽  
Progression Free Survival ◽  
Lymph Node Involvement ◽  
Phase Iii ◽  
Gynecology And Obstetrics ◽  
Significant Difference ◽  
Cancer Of The Cervix

PURPOSE: To test the hypothesis that cisplatin (CDDP) administered concurrently with standard radiotherapy (RT) would improve pelvic control and survival in patients with advanced squamous cell cancer of the cervix. PATIENTS AND METHODS: A total of 259 patients with International Federation of Gynecology and Obstetrics stage IB to IVA squamous cell cervical cancer with central disease ≥ 5 cm or histologically confirmed pelvic lymph node involvement were randomized to receive RT (external-beam RT plus brachytherapy) plus weekly CDDP chemotherapy (40 mg/m2) (arm 1) or the same RT without chemotherapy (arm 2). RESULTS: A total of 253 patients were available for analysis. Median follow-up was 82 months. No significant difference was found in progression-free survival (P = .33). No significant difference in 3- and 5-year survival rates was found (69% v 66% and 62% v 58%, respectively; P = .42). The hazard ratio for survival (arm 2 to arm 1) was 1.10 (95% confidence interval, 0.75 to 1.62). CONCLUSION: This study did not show a benefit to either pelvic control or survival by adding concurrent weekly CDDP chemotherapy in a dose of 40 mg/m2 to radical RT as given in this trial. Careful attention to RT details is important for achieving optimum outcome for patients with this disease.

Stereotactic radiotherapy in patients with oligometastatic or oligoprogressive gynecological malignancies: a multi-institutional analysis

2020 ◽  
Vol 30 (6) ◽  
pp. 865-872 ◽  
Author(s):  
Cem Onal ◽  
Melis Gultekin ◽  
Ezgi Oymak ◽  
Ozan Cem Guler ◽  
Melek Tugce Yilmaz ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Overall Survival ◽  
Local Control ◽  
Stereotactic Body Radiotherapy ◽  
Survival Rates ◽  
Progression Free Survival ◽  
Complete Response ◽  
Term Survival ◽  
Free Survival ◽  
Oligometastatic Disease

IntroductionData supporting stereotactic body radiotherapy for oligometastatic patients are increasing; however, the outcomes for gynecological cancer patients have yet to be fully explored. Our aim is to analyze the clinical outcomes of stereotactic body radiotherapy in the treatment of patients with recurrent or oligometastatic ovarian cancer or cervical cancer.MethodsThe clinical data of 29 patients (35 lesions) with oligometastatic cervical cancer (21 patients, 72%) and ovarian carcinoma (8 patients, 28%) who were treated with stereotactic body radiotherapy for metastatic sites were retrospectively evaluated. All patients had <5 metastases at diagnosis or during progression, and were treated with stereotactic body radiotherapy for oligometastatic disease. Patients with ≥5 metastases or with brain metastases and those who underwent re-irradiation for primary site were excluded. Age, progression time, mean biologically effective dose, and treatment response were compared for overall survival and progression-free survival.ResultsA total of 29 patients were included in the study. De novo oligometastatic disease was observed in 7 patients (24%), and 22 patients (76%) had oligoprogression. The median follow-up was 15.3 months (range 1.9–95.2). The 1 and 2 year overall survival rates were 85% and 62%, respectively, and the 1 and 2 year progression-free survival rates were 27% and 18%, respectively. The 1 and 2 year local control rates for all patients were 84% and 84%, respectively. All disease progressions were observed at a median time of 7.7 months (range 1.0–16.0) after the completion of stereotactic body radiotherapy. Patients with a complete response after stereotactic body radiotherapy for oligometastasis had a significantly higher 2 year overall survival and progression-free survival compared with their counterparts. In multivariate analysis, early progression (≤12 months) and complete response after stereotactic body radiotherapy for oligometastasis were the significant prognostic factors for improved overall survival. However, no significant factor was found for progression-free survival in the multivariable analysis. No patients experienced grade 3 or higher acute or late toxicities.ConclusionsPatients with early detection of oligometastasis (≤12 months) and with complete response observed at the stereotactic body radiotherapy site had a better survival compared with their counterparts. Stereotactic body radiotherapy at the oligometastatic site resulted in excellent local control rates with minimal toxicity, and can potentially contribute to long-term survival.

Effectiveness of combined induction chemotherapy and radiotherapy in advanced nasopharyngeal carcinoma.

1993 ◽  
Vol 11 (10) ◽  
pp. 1919-1928 ◽  
Author(s):  
I W Dimery ◽  
L J Peters ◽  
H Goepfert ◽  
W H Morrison ◽  
R M Byers ◽  
...  
Keyword(s):  
Nasopharyngeal Carcinoma ◽  
Continuous Infusion ◽  
Induction Chemotherapy ◽  
Survival Rates ◽  
Prospective Trial ◽  
Stage Iv ◽  
Progression Free Survival ◽  
Complete Response ◽  
Dose Schedule ◽  
Cancer Center

PURPOSE This prospective trial was conducted with the goal of achieving an improvement in both overall and progression-free survival in previously untreated patients with stage IV nasopharyngeal carcinoma who received an induction chemotherapy regimen of fluorouracil (5-FU) and cisplatin followed by radiotherapy. PATIENTS AND METHODS From January 1985 to January 1990, 47 patients with T1-4N2-3M0 squamous cell carcinoma of the nasopharynx were treated at The University of Texas M.D. Anderson Cancer Center with two to three cycles of 5-FU (1,000 mg/m2 continuous infusion per day x 5 days) plus cisplatin (100 mg/m2 continuous infusion on day 1 only) followed by radiotherapy using the conventional time/dose schedule. RESULTS The response rate to chemotherapy was 93.2% (20.5% complete response [CR]; 72.7% partial response [PR]), and the overall CR rate after radiotherapy was 86%. With a median follow-up period of 53 months, the 2-, 4-, and 6-year survival rates were 80%, 71.6%, and 67.4%; the overall treatment failure rate was 27%. Treatment was well tolerated and without significant acute or chronic toxic effects. CONCLUSION The results of this prospective study demonstrate that 5-FU plus cisplatin followed by radiotherapy can induce a durable remission in a high proportion of patients with poor-prognosis stage IV nasopharyngeal carcinoma.

ABVD Versus Modified Stanford V Versus MOPPEBVCAD With Optional and Limited Radiotherapy in Intermediate- and Advanced-Stage Hodgkin's Lymphoma: Final Results of a Multicenter Randomized Trial by the Intergruppo Italiano Linfomi

2005 ◽  
Vol 23 (36) ◽  
pp. 9198-9207 ◽  
Author(s):  
Paolo G. Gobbi ◽  
Alessandro Levis ◽  
Teodoro Chisesi ◽  
Chiara Broglia ◽  
Umberto Vitolo ◽  
...  
Keyword(s):  
Adjuvant Radiotherapy ◽  
Hodgkin’S Lymphoma ◽  
Response Rate ◽  
Survival Rates ◽  
Progression Free Survival ◽  
Complete Response ◽  
Hodgkin's Lymphoma ◽  
Free Survival ◽  
Drug Doses ◽  
Advanced Hodgkin’S Lymphoma

Purpose In this multicenter, prospective, randomized clinical trial on advanced Hodgkin's lymphoma (HL), the efficacy and toxicity of two chemotherapy regimens, doxorubicin, vinblastine, mechlorethamine, vincristine, bleomycin, etoposide, and prednisone (Stanford V) and mechlorethamine, vincristine, procarbazine, prednisone, epidoxirubicin, bleomycin, vinblastine, lomustine, doxorubicin, and vindesine (MOPPEBVCAD), were compared with doxorubicin, bleomycin, vinblastine, and dacarbazine (ABVD) as standard therapy to select which regimen would best support a reduced radiotherapy program, which was limited to ≤ two sites of either previous bulky or partially remitting disease (a modification of the original Stanford program). Patients and Methods Three hundred fifty-five patients with stage IIB, III, or IV HL were randomly assigned. Three hundred thirty-four patients were assessable for the study and received six cycles of ABVD (n = 122), three cycles of Stanford V (n = 107), or six cycles of MOPPEBVCAD (n = 106); radiotherapy was administered to 76, 71, and 50 patients in these three arms, respectively. Results The complete response rates for ABVD, Stanford V, and MOPPEBVCAD were 89%, 76% and 94%, respectively; 5-year failure-free survival (FFS) and progression-free survival rates were 78%, 54%, 81% and 85%, 73%, and 94%, respectively (P < .01 for comparison of Stanford V with the other two regimens). Corresponding 5-year overall survival rates were 90%, 82%, and 89% for ABVD, Stanford V, and MOPPEBVCAD, respectively. Stanford V was more myelotoxic than ABVD but less myelotoxic than MOPPEBVCAD, which had larger reductions in the prescribed drug doses. Conclusion When associated with conditioned and limited (not adjuvant) radiotherapy, ABVD and MOPPEBVCAD were superior to Stanford V chemotherapy in terms of response rate and FFS and progression-free survival. Patients were irradiated less often after MOPPEBVCAD, but this regimen was more toxic. ABVD is still the best choice when it is combined with optional, limited irradiation.

Long-Term Follow-Up of Patients With Hairy Cell Leukemia After Cladribine Treatment

Blood ◽  
1998 ◽  
Vol 92 (6) ◽  
pp. 1918-1926 ◽  
Author(s):  
Alan Saven ◽  
Carol Burian ◽  
James A. Koziol ◽  
Lawrence D. Piro
Keyword(s):  
Hairy Cell Leukemia ◽  
Survival Rates ◽  
Complete Response ◽  
Hairy Cell ◽  
Cell Leukemia ◽  
Second Neoplasms ◽  
American Society ◽  
La Jolla

Abstract Hairy cell leukemia is a chronic B-cell disorder that follows an indolent, but progressive course. Cladribine (2-chlorodeoxyadenosine) induces complete remissions in the majority of patients after a single course. We report the long-term outcomes, including response rates and their duration; time-to-treatment failure (TTF) rates; retreatment results; toxicities; and survival rates of patients treated at Scripps Clinic (La Jolla, CA). A total of 358 patients with hairy cell leukemia were treated with cladribine at 0.087 or 0.1 mg/kg body weight per day by continuous intravenous infusion for 7 days. The expected number of second neoplasms was based on the National Cancer Institute’s Surveillance Epidemiology and End Results data. Of 349 evaluable patients, 319 (91%) achieved an initial complete response and 22 (7%) a partial response with an overall median duration of response follow-up of 52 months. Ninety patients (26%) had relapsed at a median of 29 months. The TTF rate for all 341 responders was 19% at 48 months, 16% for complete responders, and 54% for partial responders. Of 53 evaluable patients treated with second courses of cladribine at first relapse, 33 (62%) achieved complete responses and 14 (26%) partial responses. Twenty-seven patients (8%) developed second neoplasms (only 1 hematopoietic) with an observed-to-expected ratio of 1.88 (95% confidence interval, 1.24 to 2.74). The overall survival rate was 96% at 48 months. Single courses of cladribine induced long-lasting complete responses in the vast majority of patients. Relapse rates for complete responders were low. Patients who relapse can be successfully retreated with cladribine. Cladribine has high efficacy and a favorable acute and long-term toxicity profile when administered to patients with hairy cell leukemia. © 1998 by The American Society of Hematology.

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