Phase II Clinical Trial of Ixabepilone (BMS-247550), an Epothilone B Analog, in Patients With Taxane-Resistant Metastatic Breast Cancer

2007 ◽  
Vol 25 (23) ◽  
pp. 3399-3406 ◽  
Author(s):  
Eva Thomas ◽  
Josep Tabernero ◽  
Monica Fornier ◽  
Pierfranco Conté ◽  
Pierre Fumoleau ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Metastatic Breast Cancer ◽  
Disease Progression ◽  
Phase Ii ◽  
Response Rate ◽  
Metastatic Breast ◽  
Response Duration ◽  
Tumor Cell Death ◽  
Median Response ◽  
Epothilone B

Purpose Ixabepilone (BMS-247550) is an epothilone analog that optimizes the properties of naturally occurring epothilone B. Natural epothilones and their analogs promote tumor cell death by binding to tubulin and stabilizing microtubules, causing apoptosis. This international phase II trial assessed the activity of ixabepilone in patients with metastatic breast cancer (MBC) that was resistant to taxane therapy. Patients and Methods MBC patients, who had experienced disease progression while receiving or within 4 months of taxane therapy (6 months if adjuvant taxane only), and who had a taxane as their last regimen, received ixabepilone (1- or 3-hour infusion of 50 mg/m2 or 3-hour infusion of 40 mg/m2 every 3 weeks). Results Of 49 patients treated with 40 mg/m2 ixabepilone during 3 hours, 35 (73%) had experienced disease progression within 1 month of their last taxane dose. The response rate was 12% (95% CI, 4.7% to 26.5%). All responses (n = 6) were partial; five of six patients had not responded to prior taxane therapy. In responders, the median response duration was 10.4 months. In 20 patients (41%), stable disease was the best outcome. Median time to progression was 2.2 months (95% CI, 1.4 to 3.2 months); median survival was 7.9 months. For treated patients across all cohorts (intent-to-treat population), the response rate was also 12% (eight of 66). Treatment-related adverse events in the study were manageable and primarily grade 1/2. Treatment-related neuropathy was mostly sensory and mild to moderate. Conclusion Ixabepilone (40 mg/m2 as a 3-hour infusion every 3 weeks) demonstrates promising antitumor activity and an acceptable safety profile in patients with taxane-resistant MBC.

Phase II study of receptor-enhanced chemosensitivity using recombinant humanized anti-p185HER2/neu monoclonal antibody plus cisplatin in patients with HER2/neu-overexpressing metastatic breast cancer refractory to chemotherapy treatment.

1998 ◽  
Vol 16 (8) ◽  
pp. 2659-2671 ◽  
Author(s):  
M D Pegram ◽  
A Lipton ◽  
D F Hayes ◽  
B L Weber ◽  
J M Baselga ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Monoclonal Antibody ◽  
Metastatic Breast Cancer ◽  
Disease Progression ◽  
Phase Ii ◽  
Metastatic Breast ◽  
Response Duration ◽  
Pharmacokinetic Parameters ◽  
Minor Response ◽  
Median Response

PURPOSE To determine the toxicity, pharmacokinetics, response rate, and response duration of intravenous (i.v.) administration of recombinant, humanized anti-p185HER2 monoclonal antibody (rhuMAb HER2) plus cisplatin (CDDP) in a phase II, open-label, multicenter clinical trial for patients with HER2/neu-overexpressing metastatic breast cancer. PATIENTS AND METHODS The study population consisted of extensively pretreated advanced breast cancer patients with HER2/neu overexpression and disease progression during standard chemotherapy. Patients received a loading dose of rhuMAb HER2 (250 mg i.v.) on day 0, followed by weekly doses of 100 mg i.v. for 9 weeks. Patients received CDDP (75 mg/m2) on days 1, 29, and 57. RESULTS Of 37 patients assessable for response, nine (24.3%) achieved a PR, nine (24.3%) had a minor response or stable disease, and disease progression occurred in 19 (51.3%). The median response duration was 5.3 months (range, 1.6-18). Grade III or IV toxicity was observed in 22 of 39 patients (56%). The toxicity profile reflected that expected from CDDP alone with the most common toxicities being cytopenias (n = 10), nausea/vomiting (n = 9), and asthenia (n = 5). Mean pharmacokinetic parameters of rhuMAb HER2 were unaltered by coadministration of CDDP. CONCLUSION The use of rhuMAb HER2 in combination with CDDP in patients with HER2/neu-overexpressing metastatic breast cancer results in objective clinical response rates higher than those reported previously for CDDP alone, or rhuMAb HER2 alone. In addition, the combination results in no apparent increase in toxicity. Finally, the pharmacology of rhuMAb HER2 was unaffected by coadministration with CDDP.

Ninety-six-hour paclitaxel infusion after progression during short taxane exposure: a phase II pharmacokinetic and pharmacodynamic study in metastatic breast cancer.

1996 ◽  
Vol 14 (6) ◽  
pp. 1877-1884 ◽  
Author(s):  
A D Seidman ◽  
D Hochhauser ◽  
M Gollub ◽  
B Edelman ◽  
T J Yao ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Metastatic Breast Cancer ◽  
Phase Ii ◽  
Drug Exposure ◽  
Metastatic Breast ◽  
Response Duration ◽  
Pharmacokinetic Profile ◽  
Primary Resistance ◽  
Secondary Resistance ◽  
Median Response

PURPOSE A phase II trial of paclitaxel infused over 96 hours in patients with metastatic breast cancer with demonstrated disease progression (PD) during short-infusion taxane treatment was performed to evaluate schedule-dependent activity with prolonged drug exposure. The tolerability of this strategy and its pharmacokinetic profile and pharmacodynamic correlates were also investigated. PATIENTS AND METHODS Paclitaxel was administered to 26 patients with metastatic breast cancer at 120 to 140 mg/m2 intravenously over 96 hours. Twenty-three patients had demonstrated PD while receiving prior 3-hour paclitaxel, two during 1-hour docetaxel, and one during infusions of docetaxel and then paclitaxel. Twenty-one patients (81%) had no prior response to the short taxane infusion (primary resistance) and five (19%) had prior partial responses (PRs) of brief duration before PD (secondary resistance). Plasma paclitaxel concentrations were assessed at 24, 48, 72, and 96 hours. RESULTS After delivery of 195 cycles, seven of 26 assessable patients (26.9%; 95% confidence interval, 11.6% to 47.8%) had major objective responses, with a median response duration of 6 months (range, 1 to 13). The predominant toxicities were neutropenia (76% grade > or = 3) and stomatitis (15% grade > or = 3). Despite omission of premedications, no significant hypersensitivity reactions occurred. The median steady-state paclitaxel concentration (Css) in 23 assessable patients was 0.047 mumol/L (range, .023 to .176). Patients who experienced grade 4 neutropenia had significantly decreased paclitaxel clearance and higher Css than those with grade 1 to 3 neutropenia (P < .05). Pretreatment elevation of hepatic transaminases was associated with delayed clearance (P < .01) and increased myelo-suppression and mucosal toxicity. CONCLUSION Paclitaxel demonstrates activity against metastatic breast cancer when administered over 96 hours to patients with disease that recently had progressed during short taxane exposure. Delayed paclitaxel clearance and consequent increased toxicity occurred in patients with hepatic dysfunction. The activity observed supports preclinical data that suggest variability in efficacy and resistance patterns to paclitaxel based on duration of exposure.

Phase II trial of docetaxel in advanced anthracycline-resistant or anthracenedione-resistant breast cancer.

1995 ◽  
Vol 13 (12) ◽  
pp. 2879-2885 ◽  
Author(s):  
P M Ravdin ◽  
H A Burris ◽  
G Cook ◽  
P Eisenberg ◽  
M Kane ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Metastatic Breast Cancer ◽  
Response Rate ◽  
Objective Response ◽  
Metastatic Breast ◽  
Response Duration ◽  
Fluid Retention ◽  
Skin Reactions ◽  
Median Response ◽  
High Level

PURPOSE The purpose of this study was to evaluate the clinical efficacy and safety of docetaxel in patients with metastatic breast cancer (MBC) resistant to doxorubicin or mitoxantrone. PATIENTS AND METHODS Docetaxel 100 mg/m2 was administered as a 1-hour intravenous (IV) infusion every 3 weeks to 42 patients registered at four centers. Patients must have received at least one but no more than two prior chemotherapy regimens for MBC (in addition to any prior adjuvant therapy). One of the regimens for metastatic breast cancer must have included an anthracycline or anthracenedione and the cancer must have progressed on that regimen. RESULTS Objective responses were seen in 20 of 35 assessable patients (three complete responses [CRs] and 17 partial responses [PRs]), for an objective response rate of 57% (95% confidence interval [CI], 39% to 74%) and in 21 of 42 registered patients (50% response rate [RR]; 95% CI, 34% to 66%) entered onto the trial. The median response duration was 28 weeks. The most common toxicity in this study was grade 4 neutropenia, which occurred in 95% of patients. Other clinically significant nonhematologic side effects included stomatitis, skin reactions, neurosensory changes, asthenia, and fluid retention. Patients who received dexamethasone premedication had a later onset of fluid retention than those who did not receive dexamethasone (onset at a median cumulative docetaxel dose of 503 mg/m2 and 291 mg/m2, respectively). CONCLUSION Docetaxel at this dose and schedule has a high level of antitumor activity in patients with treatment-refractory advanced breast cancer, and appears to be one of the most active agents for the treatment of this patient population.

Randomized Phase II Study of Two Irinotecan Schedules for Patients With Metastatic Breast Cancer Refractory to an Anthracycline, a Taxane, or Both

2004 ◽  
Vol 22 (14) ◽  
pp. 2849-2855 ◽  
Author(s):  
Edith A. Perez ◽  
David W. Hillman ◽  
James A. Mailliard ◽  
James N. Ingle ◽  
J. Michael Ryan ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Overall Survival ◽  
Metastatic Breast Cancer ◽  
Phase Ii ◽  
Median Overall Survival ◽  
Phase Ii Study ◽  
Objective Response ◽  
Metastatic Breast ◽  
Response Duration ◽  
Median Response

Purpose A pressing need exists for agents active against anthracycline- or taxane-refractory metastatic breast cancer (MBC), or both. Previous clinical trials suggested that irinotecan might have such activity. We conducted this multicenter phase II study to assess efficacy and tolerability of two irinotecan schedules. Patients and Methods MBC patients who experienced disease progression after one to three chemotherapy regimens, including at least one anthracycline- or taxane-based regimen, were randomly assigned to irinotecan in 6-week cycles comprising 100 mg/m2 weekly for 4 weeks, then a 2-week rest (weekly) or 240 mg/m2 every 3 weeks. Results The weekly arm had 52 assessable patients; the every-3-weeks arm had 51 assessable patients. In the weekly arm, the objective response (complete regression [CR] + partial regression [PR]) rate was 23% (one CR, 11 PR; 95% CI, 13% to 37%). Median response duration was 4.9 months (range, 1.9 to 15.9 months), and median overall survival was 9.7 months (95% CI, 8.0 to 14.2 months). In the every-3-weeks arm, the objective response rate was 14% (nine PR; 95% CI, 6% to 26%), median response duration was 4.2 months (range, 3.1 to 13.9 months), and median overall survival was 8.6 months (95% CI, 7.0 to 12.3 months). Treatment generally was well tolerated, especially in the weekly arm. Grade 3 to 4 adverse events with ≥ 10% incidence included neutropenia (29%) and diarrhea (17%) in the weekly arm and neutropenia (36%), vomiting (20%), dyspnea (18%), nausea (16%), and diarrhea (12%) in the every-3-weeks arm. Conclusion Irinotecan is active with good tolerability in refractory MBC. Irinotecan (especially weekly) warrants additional study as monotherapy and in combination regimens in this setting.

A phase II study of docetaxel in patients with paclitaxel-resistant metastatic breast cancer.

1998 ◽  
Vol 16 (10) ◽  
pp. 3362-3368 ◽  
Author(s):  
V Valero ◽  
S E Jones ◽  
D D Von Hoff ◽  
D J Booser ◽  
R G Mennel ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Metastatic Breast Cancer ◽  
Disease Progression ◽  
Metastatic Breast ◽  
Response Duration ◽  
Response Rates ◽  
Cross Resistance ◽  
Median Response ◽  
Best Response ◽  
Clinically Significant

PURPOSE To evaluate the efficacy and safety of docetaxel in patients with paclitaxel-resistant metastatic breast cancer (MBC). PATIENTS AND METHODS Docetaxel (100 mg/m2) was administered every 3 weeks to 46 patients registered at four centers. Patients had previously received < or = two chemotherapy regimens for MBC. All patients had progressive disease while receiving paclitaxel therapy. Treatment was repeated until there was evidence of disease progression or for a maximum of three cycles after best response. RESULTS Objective responses were seen in eight of 44 assessable patients (18.1%; 95% confidence interval [CI], 6.7% to 29.5%). Seven patients had partial responses and one patient responded completely. Response rates were not significantly different by previously received paclitaxel dose or resistance. No responses were seen in 12 patients who had previously received paclitaxel by 24-hour infusion, but the response rate in 32 patients who had received paclitaxel by 1- to 3-hour infusion was 25%. The median response duration was 29 weeks and the median time to disease progression was 10 weeks. Median survival was 10.5 months. Clinically significant (severe) adverse events included neutropenic fever (24% of patients), asthenia (22%), infection (13%), stomatitis (9%), neurosensory changes (7%), myalgia (7%), and diarrhea (7%). CONCLUSION Docetaxel is active in patients with paclitaxel-resistant breast cancer, particularly in those who failed to respond to brief infusions of paclitaxel. Response rates were comparable to or better than those seen with other therapies for patients with paclitaxel-resistant MBC. This confirms preclinical studies, which indicated only partial cross-resistance between paclitaxel and docetaxel.

Dose-dense therapy with weekly 1-hour paclitaxel infusions in the treatment of metastatic breast cancer.

1998 ◽  
Vol 16 (10) ◽  
pp. 3353-3361 ◽  
Author(s):  
A D Seidman ◽  
C A Hudis ◽  
J Albanell ◽  
J Albanel ◽  
W Tong ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Metastatic Breast Cancer ◽  
Disease Progression ◽  
Metastatic Breast ◽  
Weekly Paclitaxel ◽  
Pharmacokinetic Studies ◽  
Median Response ◽  
Prior Therapy ◽  
Anthracycline Therapy ◽  
Grade 3

PURPOSE To evaluate the efficacy and toxicity of paclitaxel administered as a 1-hour infusion on weekly basis, without interruption, to patients with metastatic breast cancer who had received prior therapy. PATIENTS AND METHODS Thirty patients with metastatic breast cancer received sustained weekly paclitaxel therapy at an initial dose of 100 mg/m2 until disease progression. Prior therapy included adjuvant only (n=17), metastatic only (n=7), or both (n=6). Eighteen patients had received prior anthracycline therapy, 12 of whom had demonstrated progression of disease within 12 months of it. All patients were assessable for efficacy; 29 patients were assessable for toxicity. Pharmacokinetic studies of paclitaxel were also performed. RESULTS A total of 469 weekly paclitaxel infusions were administered to 30 patients (median, 14 infusions/patient). The median delivered dose-intensity was 91 mg/m2/wk (range, 80 to 108). The overall response rate was 53% (95% confidence interval [CI], 34% to 72%), with 10% complete responses (CRs) and 43% partial responses (PRs). Median response duration was 7.5 months (range, 2 to 11+). Responses were observed in nine of 18 (50%) patients with prior anthracycline therapy, including six of 12 (50%) with disease progression on anthracycline within 1 year (three of four within 6 months). Therapy was well tolerated and remarkable for a lack of overall and cumulative myelosuppression. Grade 3/4 neutropenia occurred in four patients; febrile neutropenia was not observed. Peripheral neuropathy prohibited dose escalation above 100 mg/m2, and grade 3 neuropathy was observed in two of 21 patients at < or = 100 mg/m2. CONCLUSION Weekly paclitaxel therapy is active and well tolerated in patients with metastatic breast cancer. Weekly therapy should be considered as a current clinical option for these patients and should be incorporated into future comparative clinical trials.

Phase II trial of ixabepilone, an epothilone B analog, given daily for three days every three weeks, in metastatic breast cancer

2006 ◽  
Vol 25 (1) ◽  
pp. 63-67 ◽  
Author(s):  
Neelima Denduluri ◽  
James J. Lee ◽  
Janice Walshe ◽  
Arlene W. Berman ◽  
Ujala Vatas ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Metastatic Breast Cancer ◽  
Phase Ii ◽  
Phase Ii Trial ◽  
Metastatic Breast ◽  
Epothilone B

Combination of paclitaxel and two schedules of gefitinib in patients with metastatic breast cancer

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 10599-10599 ◽  
Author(s):  
S. Cresta ◽  
A. Perotti ◽  
L. Merlini ◽  
M. Mansutti ◽  
A. Marchianã ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Metastatic Breast Cancer ◽  
Antitumor Activity ◽  
Metastatic Breast ◽  
Sensory Neuropathy ◽  
Response Duration ◽  
Skin Toxicity ◽  
Median Response ◽  
Grade 3

10599 Background: The epidermal growth factor receptor (EGFR) may be overexpressed in breast cancer. Inhibition of EGFR signaling by gefitinib (Iressa) enhances the in vitro antitumor activity of many cytotoxic drugs including paclitaxel. Methods: In this phase II study patients (pts) with measurable metastatic breast cancer and maximum prior exposure to two chemotherapies were randomized to paclitaxel (100 mg/m2 on days 1, 8 q21) and continuous gefitinib, 250 mg daily for 21 days (arm A); or paclitaxel (100 mg/m2 on days 8, 15 q21) with gefitinib 250 mg daily from day 1 to 15 (arm B). Therapy continued for at least 4 cycles after best response. After 6 cycles, responding pts continued with gefitinib monotherapy until progression or unacceptable toxicity. Results: 16 pts in arm A and 17 in arm B were enrolled; 25 had visceral disease (12 in arm A and 13 in arm B). Median age was 53 years (range 29–70). All but one pt received prior anthracyclines and 9 also prior taxanes. Overall 17 pts responded to therapy (intent to treat analysis; arm A: 62.5%, 95% CI: 35.4–84.8%; arm B: 41.2%, 95% CI: 18.4–67.1%). Disease control (CR+PR+SD) was achieved in 81.3% of pts in arm A and 76.5% in arm B, with 10 and 6 pts who continued with gefitinib monotherapy after completing the combination schedule. Median time to progression was 250 (arm A) and 204 days (arm B), while median response duration was 212 (arm A) and 285 days (arm B). Tolerability was good with either schedule of gefitinib. Diarrhea was frequent (68.8% and 64.7%) and of grade 3–4 severity in 6% of pts in arm A and in arm B. Grade 3–4 neutropenia affected 6% and 12% of pts respectively, and 6% of pts in both arms had a grade 3–4 increase of AST and ALT. Other grade 1–2 adverse events included acneiform rash (100% in arm A and 58.8% in arm B), sensory neuropathy (68.8% and 58.8%), anemia (50.0% and 52.9%), neutropenia (25.0% and 17.6%) and myalgia (37.5% and 41.2%). Conclusions: The combination of paclitaxel with gefitinib given continuously or for 2 out of every 3 weeks is feasible and well tolerated. The discontinuous schedule caused less skin toxicity. The good antitumor activity deserves further studies to identify sensitive subgroups and mechanisms of sensitivity. IRESSA is a trademark of the AstraZeneca group of companies. [Table: see text]

Phase II Trial of Oral Tegafur and Folinic Acid with Mitoxantrone as First-Line Regimen in Patients with Metastatic Breast Cancer

1996 ◽  
Vol 82 (1) ◽  
pp. 61-64 ◽  
Author(s):  
Vicente Alonso ◽  
Carmen Santander ◽  
Jesús Florián ◽  
Martina Alonso ◽  
Ma Dolores Isla ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Metastatic Breast Cancer ◽  
Folinic Acid ◽  
Phase Ii ◽  
Response Rate ◽  
Phase Ii Trial ◽  
Metastatic Breast ◽  
Biochemical Modulation ◽  
Outpatient Basis ◽  
First Line

Background Tegafur acts as a deport form of 5-fluorouracil when administered orally for longs periods of time, since it is an active drug in metastatic breast cancer, with response rates of 29-44%. Biochemical modulation with folinic acid and the addition of mitoxantrone could increase the efficacy of tegafur in patients with metastatic breast cancer. Methods A prospective phase II trial in patients with previously untreated metastatic breast cancer was carried out. The scheme consisted of mitoxantrone, 12 mg/m2 intravenous day 1, oral tegafur, 750 mg/m2/day divided in three equal doses, and leucovorin 15 mg/8 h orally for days 1-21, given in a 4-week schedule. None patient had received chemotherapy for metastatic breast cancer, although 16 patients had received previous adjuvant chemotherapy. Results Thirty-four patients were included. Objective responses were achieved in 20 of 32 patients assessable for response, with 1 complete response and 19 partial responses. The objective response rate was 62.5% (95% confidence intervals, 48-76%). The median duration of response was 10 months. Grade III-IV toxicity according to WHO criteria was digestive (nausea/vomiting) in 12.5%, diarrhea in 25% and stomatitis in 25% of patients. Other toxicities were low. Eight patients required dose-reduction. Conclusions We achieved a significant response rate with the scheme, which was administered on an outpatient basis. It seems to be safe and effective as first-line treatment in metastatic breast cancer, with a short median response duration. The size of the trial does not permit definitive conclusions, and the role of biochemical modulation of tegafur in combination with mitoxantrone remains to be defined.

Phase II Trial of N,N-Diethyl-2-[4-(phenylmethyl)phenoxy]ethanamine.HCl and Doxorubicin Chemotherapy in Metastatic Breast Cancer: A National Cancer Institute of Canada Clinical Trials Group Study

1999 ◽  
Vol 17 (11) ◽  
pp. 3431-3437 ◽  
Author(s):  
K. Khoo ◽  
L. Brandes ◽  
L. Reyno ◽  
A. Arnold ◽  
S. Dent ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Clinical Trials ◽  
Metastatic Breast Cancer ◽  
Phase Ii ◽  
National Cancer Institute ◽  
Response Rate ◽  
Phase Ii Trial ◽  
Single Agent ◽  
Metastatic Breast ◽  
Phase Iii

PURPOSE: This multicenter phase II trial investigated the efficacy and toxicity of a combination of the novel intracellular histamine antagonist, N,N-diethyl-2-[4-(phenylmethyl)phenoxy]ethanamine.HCl (DPPE), and doxorubicin in patients with anthracycline-naïve metastatic breast cancer. Preclinical models and early single institutional studies suggested DPPE could potentiate the cytotoxicity of doxorubicin. PATIENTS AND METHODS: Forty-two women, 32 to 77 years old (median, 59 years), with anthracycline-naïve metastatic breast cancer were treated. Patients may have had one previous regimen of nonanthracycline chemotherapy, either in the adjuvant or metastatic disease treatment setting. DPPE (6 mg/kg) was administered as an 80 minute intravenous infusion with doxorubicin (60 mg/m2) given intravenously over the last 20 minutes of the DPPE infusion. Patients were premedicated with an antiemetic and sedating regimen. The DPPE/doxorubicin treatment was given every 21 days for a maximum of seven cycles. RESULTS: All 42 patients were assessable. Overall, toxicity was comparable to that expected with doxorubicin alone, with the exception of DPPE-related motion sickness, mild hallucinations, and cerebellar signs at the time of the infusion. These CNS side effects were manageable in an ambulatory care setting, improved with subsequent cycles of treatment, and did not usually require hospitalization. Four patients developed febrile neutropenia. Thirty-five patients received four or more cycles of chemotherapy. The overall response rate was 52.5% (95% confidence interval, 36% to 68%), with 9.5% complete responses (n = 4), 43% partial responses (n = 18), and 38% of patients with stable disease (n = 16). CONCLUSION: The antitumour effects of DPPE/doxorubicin the 52.5% response rate seems encouraging, particularly in consideration of the fact that a recently reported randomized National Cancer Institute of Canada Clinical Trials Group trial using single-agent doxorubicin 60 mg/m2 in one of the treatment arms achieved a 31% response rate. Thus, a randomized phase III trial of doxorubicin versus doxorubicin plus DPPE is being conducted in this clinical setting.

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