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Dive into the research topics where Peter Farha is active.

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Featured researches published by Peter Farha.


Journal of Clinical Oncology | 1985

Randomized trial of three combinations of cisplatin with vindesine and/or VP-16-213 in the treatment of advanced non-small-cell lung cancer.

Hari M. Dhingra; Manuel Valdivieso; David T. Carr; Delia F. Chiuten; Peter Farha; William K. Murphy; Gary Spitzer; Theera Umsawasdi

One hundred sixty-seven evaluable patients with non-small-cell lung cancer were randomized to receive high-dose cisplatin and vindesine (PVD), or cisplatin and VP-16-213 (etoposide epipodophyllotoxin) (PVP), or cisplatin with VP-16-213 and vindesine (PVPVD). The patient distribution and characteristics were similar in all the treatment arms. The response rate differences (35% in PVD arm, 30% in PVP arm, and 22% in PVPVD arm) were not statistically significant (P = .33). Response durations were 43 weeks in the PVD arm, 20 weeks in the PVP arm, and 27 weeks in the PVPVD arm. Median survival was 29 weeks in the PVD and PVP arms and 28 weeks in the PVPVD arm. Median survival time of responding patients was 76 weeks in the PVD arm and 65 weeks in the PVP arm; 78% of patients were alive at 22+ to 87+ weeks follow-up in the PVPVD arm. Myelosuppression was similar in all three treatment arms. Significantly more azotemia occurred in the PVD arm than in the PVP and PVPVD arms (P = .002), and significantly more neuropathy in the PVD and PVPVD arms than in the PVP arm (P = .003 and .005). All the treatment arms have similar antitumor activity in non-small-cell lung cancer, but the PVP combination is slightly less toxic than the PVD and PVPVD treatment arms.


International Journal of Radiation Oncology Biology Physics | 1985

Esophageal complications from combined chemoradiotherapy (cyclophosphamide + adriamycin + cisplatin + xrt) in the treatment of non-small cell lung cancer

Theera Umsawasdi; M. Valdivieso; H. Thomas Barkley; Daniel J. Booser; Delia F. Chiuten; William K. Murphy; Hari M. Dhingra; Calvin Dixon; Peter Farha; Gary Spitzer; David T. Carr

Esophageal complications from combined chemoradiotherapy (CCRT) were analyzed in 55 patients with limited non-small cell lung cancer. CCRT consisted of chemotherapy (cyclophosphamide, doxorubicin (Adriamycin), and cisplatin: CAP) and chest irradiation (5000 rad in 25 fractions/5 weeks). Forty-five patients received two courses of CAP, followed by five weekly courses of low dose CAP and irradiation followed by maintenance courses of CAP (Group 1). Ten patients received concomitant CCRT from the onset of treatment (Group 2). Esophagitis occurred in 80% of all patients. Severe esophagitis occurred in 27% of patients of Group 1 and 40% of patients of Group 2. Esophageal stricture or fistula developed in 1 of 45 (2%) patients in Group 1, and 3 of 10 (30%) patients in Group 2 (p less than 0.025). Weekly low-dose chemotherapy administered concomitantly with chest irradiation (R) at the onset of treatment significantly increases esophageal complications. A review of the literature suggests that CCRT may be used safely with split courses of R. The duration between onset of chemotherapy either before or after R should be greater than one week.


Cancer | 1987

Use of carcinoembryonic antigen in small cell lung cancer. Prognostic value and relation to the clinical course 1.

Francis Laberge; Herbert A. Fritsche; Theera Umsawasdi; David T. Carr; Susan Welch; William K. Murphy; Delia F. Chiuten; Hari M. Dhingra; Peter Farha; Gary Spitzer; Manuel Valdivieso

Carcinoembryonic antigen (CEA) was measured in 147 patients at diagnosis of small cell lung cancer; 17% of patients with limited disease and 51% with extensive disease had an abnormal CEA level (>10 ng/ml). The median level was higher in extensive than in limited disease (11 ng/ml and 5.8 ng/ml, respectively; P <0.001). Multivariate analysis showed CEA level ≥ 50 ng/ml to be an adverse prognostic factor (P = 0.02); median survival at this level was shorter than at less than 50 ng/ml (7 and 46 weeks, respectively; P = 0.002). No consistent directional changes of follow‐up CEA values were observed in patients with initially normal CEA levels, but normalization of levels occurred in complete responders. We recommend that CEA be measured in this disease at diagnosis as an additional prognostic factor and that patients with abnormal initial CEA levels have follow‐up measurements to aid in evaluating response.


Southern Medical Journal | 1984

Systemic combination chemotherapy as primary treatment of brain metastasis from lung cancer.

Hagop M. Kantarjian; Peter Farha; Gary Spitzer; William K. Murphy; M. Valdivieso

Five patients with primary lung cancer metastatic to the brain were treated with systemic combination therapy alone. One patient had had unsuccessful radiation therapy, while the other four received chemotherapy as the primary modality of treatment. Response was observed in all five patients. The concept of the blood-brain barrier and the role of systemic chemotherapy in metastatic cancer to the brain are discussed.


Cancer | 1989

Weekly doxorubicin versus doxorubicin every 3 weeks in cyclophosphamide, doxorubicin, and cisplatin chemotherapy for non-small cell lung cancer.

Theera Umsawasdi; Manuel Valdivieso; Daniel J. Booser; H. Thomas Barkley; Michael S. Ewer; Bruce Mackay; Hari M. Dhingra; William K. Murphy; Gary Spitzer; Delia F. Chiuten; Calvin Dixon; Peter Farha; David T. Carr

A prospective randomized study was done to determine the effect of different doxorubicin (Adriamycin [ADR], Adria Laboratories, Columbus, OH) administration (schedules every week versus every 3 weeks) on the productivity of a cyclophosphamide, ADR, cisplatin (CAP) chemotherapy regimen for patients with non‐small cell lung cancer (NSCLC). Electrocardiograms, multigated cardiac scans, echocardiograms, and endomyocardial biopsies were done serially for cardiac monitoring. Of 102 patients, 47 had inoperable limited disease (LD), 47 had extensive disease (ED), and eight had no evidence of disease. In the last group chemotherapy was given adjuvantly. Fifty‐one patients were entered into each treatment arm. The groups were formed according to extent of disease and were comparable in terms of patient characteristics. In these groups, the overall response rates using both schedules in LD patients were similar: in patients without chest irradiation previously, there was a response of 35% with ADR weekly, and 31% with ADR triweekly; in LD patients with chest irradiation previously, the response was 20% with ADR weekly, and 25% with ADR triweekly; and in ED patients, 16% with ADR weekly, and 11% with ADR triweekly. There was no significant difference in survival between the two treatment groups. However, results for all responders suggested a longer duration of response with weekly than with triweekly ADR (complete plus partial response: 35.8 versus 11A weeks, P = 0.06; minor response: 34 versus 11.5 weeks, P = 0.003, respectively). Results also suggested that weekly ADR was less cardiotoxic than triweekly ADR: 29% of patients in the former group had no changes or only minor changes in endomyocardial biopsy results, whereas all patients in the latter group had at least grade 0.5 changes at a similar dosage. The median doses of weekly ADR were higher at the same endomyocardial biopsy‐defined toxicity levels. No correlation was found between toxic effects defined by endomyocardial biopsy results and those defined by noninvasive monitoring techniques, although the number of patients assessed was small. Weekly ADR produced less granulocytopenia and a lower incidence of fever (6% versus 16%, P < 0.001) than did triweekly ADR. Alopecia, nausea, vomiting, and diarrhea were significantly less for weekly ADR than triweekly Adr (P < 0.0005, < 0.0005, and < 0.005, respectively). These data suggest that weekly ADR can achieve the same therapeutic results as the standard triweekly regimen with less cardiotoxicity, myelotoxicity, alopecia, diarrhea, nausea, and vomiting in patients with NSCLC.


Journal of Computer Assisted Tomography | 1982

Computed tomography and routine chest radiography in oat cell carcinoma of the lung.

Errol Lewis; Michael E. Bernardino; M. Valdivieso; Peter Farha; Patricia A. Barnes; John L. Thomas

Computed tomography (CI) scans of the chest and routine posteroanterior and lateral chest films were compared in 32 patients with pathologically proven oat cell carcinoma of the lung. Nineteen of the 32 patients were examined prior to any form of therapy. Overall, CT gave more information about the extent of disease. The significance of this information may be of little value because the routine chest films also demonstrated mediastinal involvement. although to a lesser degree. Computed tomography of the chest should not be the initial diagnostic staging procedure in oat cell carcinoma, but used selectively. It can be quite useful in patients who have a partially opacified lung, possibly for the evaluation of mediastinum after therapy, and for the evaluation of possible abdominal metastases.


Journal of Clinical Oncology | 1986

High-dose intensification therapy with autologous bone marrow support for limited small-cell bronchogenic carcinoma.

Gary Spitzer; Peter Farha; M. Valdivieso; Karel A. Dicke; A Zander; L Vellekoop; William K. Murphy; Hari M. Dhingra; Theera Umsawasdi; Delia F. Chiuten


Cancer treatment reports | 1984

Chemotherapy for advanced adenocarcinoma and squamous cell carcinoma of the lung with etoposide and cisplatin.

Hari M. Dhingra; M. Valdivieso; Booser Dj; Theera Umsawasdi; David T. Carr; Delia F. Chiuten; William K. Murphy; Issell Bf; Gary Spitzer; Peter Farha


Seminars in Respiratory and Critical Care Medicine | 1982

Antineoplastic Chemotherapy of Advanced Lung Cancer

Manuel Valdivieso; Peter Farha; Theera Umsawasdi; Daniel J. Booser; Mirtha T. Casimir; Delia F. Chiuten; Hari M. Dhingra; Calvin Dixon; William K. Murphy; Gary Spitzer; Karel A. Dicke; David T. Carr; Gerald P. Bodey


Cancer treatment reports | 1986

Iv melphalan in carcinoma of the lung: effect of cyclophosphamide priming on hematopoietic toxicity

Gary Spitzer; M. Valdivieso; Peter Farha; William K. Murphy; Hari M. Dhingra; Delia F. Chiuten; Theera Umsawasdi; Holoye Py

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Theera Umsawasdi

University of Texas MD Anderson Cancer Center

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William K. Murphy

University of Texas at Austin

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Delia F. Chiuten

University of Texas System

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Hari M. Dhingra

University of Texas MD Anderson Cancer Center

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M. Valdivieso

University of Texas MD Anderson Cancer Center

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David T. Carr

University of Texas MD Anderson Cancer Center

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Calvin Dixon

University of Texas MD Anderson Cancer Center

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H. Thomas Barkley

University of Texas MD Anderson Cancer Center

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