scout

Authors

John R. Eckardt, MD
Latest Article

Second-Line Treatment of Small-Cell Lung Cancer

Small-cell lung cancer is an aggressive tumor associated with highrates of regional or distant metastases at diagnosis. Although highlychemosensitive to agents given in the first-line setting (eg, etoposideand cisplatin), most patients relapse and have a poor prognosis.Treatment options for relapsed patients include radiotherapy forlimited-stage disease and chemotherapy or combined modalities foradvanced-stage disease. In clinical practice, however, some oncologistsmaintain that chemotherapy provides an insufficient survivalbenefit to justify the sometimes debilitating toxicity associated with themore active regimens in particular. Other potential barriers to furthertreatment include patient comorbidities, performance status, site(s) ofprogression, progression-free interval, and previous treatments. However,numerous clinical trials demonstrate that some patients benefitfrom treatment, achieving prolonged survival, symptom palliation,improved quality of life, and the opportunity, albeit rare, for durableremission. Additionally, several novel chemotherapeutics are availablethat alone or in combination help patients lead an improvedquality of life. Finally, alternative routes and schedules-oral formulations,weekly administration, and prolonged treatment vacations-have been developed to deliver chemotherapy to patients with poorperformance status or multiple comorbidities. This article reviews theadvantages and disadvantages of treating recurrent small-cell lungcancer and summarizes the utility of several active agents.

John R. Johnson, MD
Latest Article

Erlotinib/Gemcitabine for First-Line Treatment of Locally Advanced or Metastatic Adenocarcinoma of the Pancreas

Erlotinib (Tarceva) is a human epidermal growth factor receptor type 1/epidermal growth factor receptor (HER1/EGFR) tyrosine kinase inhibitor initially approved by the US Food and Drug Administration for the treatment of patients with locally advanced or metastatic non–small-cell lung cancer after failure of at least one prior chemotherapy regimen. In this report, we present the pivotal study that led to the approval of erlotinib in combination with gemcitabine (Gemzar) in patients with locally advanced/metastatic chemonaive pancreatic cancer patients. The combination demonstrated a statistically significant increase in overall survival accompanied by an increase in toxicity. Physicians and patients now have a new option for the treatment of locally advanced/metastatic adenocarcinoma of the pancreas.

John R. Lurain, MD
Latest Article

Medicare Rule Raises Dilemma in Recurrent Ovarian Cancer

Epithelial ovarian cancer is the leading cause of death from gynecologic malignancies. In 1996, an estimated 26,000 new cases were diagnosed, and approximately 14,000 women died of this disease in the United States alone.[1] Between 75% and 80% of ovarian cancer patients present with advanced disease at diagnosis, and these patients have a 5-year survival rate of 21%.[2,3]

John R. Mackey, MD
Latest Article

Docetaxel/Doxorubicin/Cyclophosphamide in the Treatment of Metastatic Breast Cancer

Preliminary results from phase I trials suggest that the use of docetaxel (Taxotere) and doxorubicin (Adriamycin) is a well tolerated and highly active combination regimen for

John R. Murren, MD
Latest Article

Camptothecin and Taxane Regimens for Small-Cell Lung Cancer

For more than 2 decades, combination chemotherapy has been the standard treatment for patients with small-cell lung cancer. Despite high initial response rates in both extensive- and limited-stage disease, long-term survival

John R. Perfect, MD
Latest Article

Antifungal Resistance: The Clinical Front

The emergence of resistance and changes in the spectrum ofCandida infections have led to an increased interest in susceptibilitytesting of antifungal drugs. Such testing may be particularly useful inpatients with invasive candidiasis who have been previously treated withazole antifungals, those whose infections are not responding to treatment,and those with infections caused by non-albicans species of Candida.The choice of a specific antifungal depends on the clinical statusof the patient, the relative toxicity and efficacy of the drug in the givenpatient population, the infecting species and antifungal susceptibilityof the isolate, and the patient’s prior exposure to antifungal agents.Infectious Diseases Society of America recommendations for the initialmanagement of candidemia and acute disseminated candidiasisinclude an azole, caspofungin, amphotericin B (AmB), or a combinationof fluconazole plus AmB. Caspofungin and voriconazole show goodactivity against most Candida species and may be good alternatives forpatients with Candida glabrata and Candida krusei infections and forthose with relapsing infections.

John R. Roberts, MD
Latest Article

Weekly Irinotecan and Concurrent Radiation Therapy for Stage III Unresectable NSCLC

In preclinical studies, the topoisomerase I inhibitor irinotecan (Camptosar, CPT-11) has demonstrated activity as a radiosensitizer, probably due to its ability to inhibit potentially lethal radiation damage repair. We conducted a

John R. Wingard, MD
Latest Article

Commentary (Bishop/Wingard)-Patient-Physician Communication in Oncology: What Does the Evidence Show?

As noted by Back,[1] the primarygoals of effective patient-physician communicationare to enhance patient understandingof the illness, to improvedecision-making, and to facilitate patientadjustment. These three goalsare sensible and important concernsof the communication dyad. A numberof studies have examined variousaspects of the communication processand the factors that influence communicationoutcomes, and a few evenhave tested interventions to improvephysician communication skills. However,there remains a dearth of studiesthat examine communication effectson the three major goals articulatedabove and that evaluate the effectivenessof communication skill interventionsin influencing patient outcomes.

John S. Kauh, MD
Latest Article

Through the Looking Glass: The Evolution of Erythropoiesis-Stimulating Agent Use

The perception and reality of the clinical value of erythropoiesis-stimulating agents (ESAs) in cancer supportive care have undergone a dramatic transformation since their initial use in 1990. The perception of ESA value in patients has evolved from panacea to miscreant over a 2-decade period of laboratory research, clinical trial data, and postmarketing experience. Meanwhile, the real clinical benefits of ESAs have changed very little from those described in the joint American Society of Clinical Oncology/American Society of Hematology guidelines originally published in 2002.[1] Even then, the value of initiation of ESAs was clear only in patients with hemoglobin values < 10 g/dL; quality-of-life measures produced inconsistent and, therefore, clinically inapplicable, results; and ESA use was shown to reduce the proportion of patients requiring red blood cell (RBC) transfusions by approximately 20%. The reality of ESA use that came to light following approval was increased mortality rates in certain populations, higher tumor progression and cancer recurrence rates, and more frequent and severe serious adverse effects including thromboembolism, stroke, and cardiovascular events.

John S. Lilleyman, MD
Latest Article

Book Review:Pediatric Hematology, Second Edition

The second edition of Pediatric Hematolgy, edited by the text's original editors, John S. Lilleyman and Ian M. Hann, as well as a new editor, Victor S. Blanchette, completely updates and expands upon the first edition (published in 1992). The new edition grew from 15 to 40 chapters, with contributions by many of the most well-known investigators and clinicians in pediatric hematology in the world. The textbook will especially be of value to practicing clinicians, house staff, and students.

John S. Macdonald, MD, FACP
Latest Article

Gastric Cancer: Are There New Therapeutic Options?

The majority of patients who undergo resection for gastric cancer experience relapse and ultimately die of their disease. Therefore, considerable attention has been paid to neoadjuvant and adjuvant strategies to improve surgical outcomes. Two different approaches have been tested in major clinical trials conducted in the past several years: Postoperative chemoradiotherapy was assessed in a US Southwest Oncology Group/Intergroup study (SWOG 9008/INT 0116), and perioperative chemotherapy was studied in a UK Medical Research Council (MRC) randomized trial (the MRC Adjuvant Gastric Infusional Chemotherapy [MAGIC] trial). These trials demonstrated statistically significant survival benefits in patients with resectable gastric cancer. This review will consider these trials and their implications for clinical practice.

John Schieszer
Latest Article

Gal9/TIM-3 Expression Levels Affects Chemotherapy in Leukemia Patients

A new report suggests targeting the Gal9/TIM3-axis could help boost chances of complete remission in patients with acute myeloid leukemia.

John Skibber, MD
Latest Article

Preoperative UFT/Leucovorin and Radiation Therapy in Rectal Cancer

The use of combined modality regimens has been well established in the treatment of stages II and III rectal cancer. The most common chemotherapy regimens used include continuous-infusion 5-FU delivered with the help of a central venous catheter and the use of portable pumps.

John Song, MD
Latest Article

Emerging Role of EGFR-Targeted Therapies and Radiation in Head and Neck Cancer

The treatment of head and neck cancer has been at the forefront ofnovel therapeutic paradigms. The introduction of drugs that interactwith selective biologic pathways in the cancer cell has generated considerableattention recently. A wide variety of new compounds that attemptto target growth-signaling pathways have been introduced intothe clinic. A majority of studies in the clinic have focused on epidermalgrowth factor receptor (EGFR) antagonists, but future studies will likelybuild upon or complement this strategy with agents that target angiogenicor cell-cycle pathways. EGFR activation promotes a multitude ofimportant signaling pathways associated with cancer development andprogression, and importantly, resistance to radiation. Since radiationtherapy plays an integral role in managing head and neck squamouscell cancer (HNSCC), inhibiting the EGFR pathway might improveour efforts at cancer cure. The challenge now is to understand whenthe application of these EGFR inhibitors is relevant to an individualpatient and how or when these drugs should be combined with radiationor chemotherapy. Are there molecular markers available to determinewho will respond to EGFR inhibitors and who should be treatedwith alternative approaches? What are the mechanisms behind intrinsicor acquired resistance to targeted agents, and how do we preventthis problem? We need to formulate integrated laboratory/clinicalresearch programs that address these important issues.

John Sprandio, MD
Latest Article

A Care Model for the Future: the Oncology Medical Home

Survival for cancer patients in the United States ranks among the highest in the world.[1] Despite the demonstrated success of the US cancer delivery system, government and private payers are forcing changes to the delivery of and payment model for oncology care.

John T. Cole, MD
Latest Article

Docetaxel Plus Cisplatin: An Active Combination Regimen in Non-Small-Cell Lung Cancer

Docetaxel (Taxotere) isa semisynthetic taxoid that possesses significant activity as a single

John T. Farrar, MD, MSCC
Latest Article

Neuropathic Cancer Pain: The Role of Adjuvant Analgesics

Neuropathic pain may be defined as pain related to abnormal somatosensory processing in either the peripheral or central nervous system. This pathophysiologic label is typically applied when the painful symptom is associated

John T. Hamm, MD
Latest Article

Molecular Targeting in Cancer Therapy: Can We Fulfill the Promise?

Work remains in the development of a clinically useful tumor classification system that includes molecular characterization of tumors, in our understanding of the implications of tumor heterogeneity, and in the development of more relevant and efficient clinical trials. Nonetheless, there is great excitement that a new era in the treatment of cancer is beginning.

John Thoms, MD
Latest Article

A Young Woman With Distant Recurrent Metastatic Primary Vaginal Carcinoma Salvaged With Radical Radiotherapy

Primary carcinoma of the vagina accounts for 1% to 3% of all gynecologic malignancies, with 70% of cases occurring in women over age 60.[1] Hematogenous dissemination is rare at diagnosis but is more common in patients with advanced, neglected lesions.

John Timmerman, MD
Latest Article

Hematologic Cancers Break Down a ‘Checkpoint’: Targeting the PD-1/PD-L1 Axis

While the results of the multitude of ongoing PD-1 blockade trials are eagerly awaited, it is clear that research involving the immunotherapy of blood cancers is moving swiftly through this first “checkpoint” at breakneck speed. It is sure to be a fascinating ride.

John W. Colberg, MD
Latest Article

The Use of Serum hCG as a Marker of Tumor Progression and of the Response of Metastatic Urothelial Cancer to Systemic Chemotherapy

A 55-year-old woman with a history of metastatic melanoma in remission for 8 years presented to the emergency department with gross hematuria. A CT scan, ordered because the patient was in menopause, demonstrated a bladder tumor.

John W. Davis, MD
Latest Article

Contemporary Management of Prostate Cancer With Lethal Potential

Screening for prostate cancer by determining serum prostate-specificantigen (PSA) levels has resulted in a stage migration such thatpatients with high-risk disease are more likely to be candidates for curativelocal therapy. By combining serum PSA, clinical stage, and biopsyinformation-both Gleason score and volume of tumor in the biopsycores-specimen pathologic stage and patient biochemical disease-freesurvival can be estimated. This information can help patients and cliniciansunderstand the severity of disease and the need for multimodaltherapy, often in the context of a clinical trial. While the mainstays oftreatment for local disease control are radical prostatectomy and radiationtherapy, systemic therapy must be considered as well. A randomizedtrial has shown a survival benefit for radical prostatectomy inpatients with positive lymph nodes who undergo immediate adjuvantandrogen deprivation. Clinical trials are needed to clarify whether adjuvantradiation therapy after surgery confers a survival benefit. PSAis a sensitive marker for follow-up after local treatment and has proventhat conventional external-beam irradiation alone is inadequate treatmentfor high-risk disease. Fortunately, the technology of radiationdelivery has been dramatically improved with tools such as three-dimensionalconformal radiation, intensity-modulated radiation therapy,and high-dose-rate brachytherapy. The further contributions of pelvicirradiation and neoadjuvant, concurrent, and adjuvant androgen deprivationtherapy have been defined in clinical trials. Future managementof high-risk prostate cancer may be expanded by clinical trialsevaluating neoadjuvant and/or adjuvant chemotherapy in combinationwith androgen deprivation.

John W. Eklund, MD
Latest Article

Chemotherapy Dosing in the Setting of Liver Dysfunction

Advanced cancer in the setting of liver dysfunction poses a dilemmafor physicians, as many cancer chemotherapeutic agents undergo hepaticmetabolism. Most cytotoxic drugs have a narrow therapeutic index,and the administration of chemotherapy to patients with liver impairmentresults in complicated safety issues. We present a concise reviewof cancer chemotherapy dosing in the setting of liver dysfunction.Although caution in treating all patients with hepatic failure is essential,the use of certain agents provokes greater concern than others.Continuous-infusion fluorouracil, capecitabine (Xeloda), mechlorethamine(Mustargen), cyclophosphamide, topotecan (Hycamtin), andoxaliplatin (Eloxatin) appear to be relatively well tolerated. On thecontrary, taxanes, vinca alkaloids, irinotecan (Camptosar), andanthracyclines may cause unacceptable toxicity if administered to patientswith poor hepatic function. For many anticancer agents, the paucityof data prohibits formal dosing recommendations, and most guidelinesremain empiric.

John W. Smith Ii, MD
Latest Article

Tolerability and Side-Effect Profile of rhIL-11

Safety data from two randomized phase II and one abbreviated phase III placebo-controlled, double-blind clinical studies in adult patients with nonmyeloid malignancies indicate that recombinant human interleukin-11 (rhIL-11, also known as oprelvekin [Neumega]) has an acceptable toxicity profile as therapy for the mitigation of chemotherapy-induced thrombocytopenia.

John W. Sweetenham, MD
Latest Article

Proposed Algorithm for Managing Ibrutinib-Related Atrial Fibrillation

Although ibrutinib-related atrial fibrillation (IRAF) occurs in up to 11% of patients in clinical trials, these studies have rarely fully characterized bleeding events or risk factors for bleeding when ibrutinib is combined with anticoagulation. Furthermore, guidelines do not provide direction regarding the preferred anti-arrhythmic agent for IRAF.

John W. Wells, MD
Latest Article

Lung Cancer Screening: A New Era

Screening is always an issue that generates a great deal of emotion, as recently seen with the controversies surrounding mammography and prostate-specific antigen (PSA) testing.

John Wallmark, MD
Latest Article

Tamoxifen's Impact on the Management of Breast Cancer: The Oncologist's Perspective

Breast cancer treatment has evolved greatly within the last 25 years. Tamoxifen was first introduced for the

John Wright, MD, PhD
Latest Article

Clinical Trials in Ovarian Cancer, Part 2

The American Cancer Society has estimated that 23,300 women will develop ovarian cancer in 2002, and 13,900 women will die from the disease.[1] The 5-year survival rate is about 80% for women with stage I disease, 50% for women with stage II disease, 25% for women with stage III disease, and 15% for women with stage IV disease. Among women with advanced-stage disease, optimal debulking surgery, as well as platinum/taxane-based adjuvant therapy prolongs disease-free and median survival.[2,3] Population-based data suggest that guidelines for therapy are not uniformly followed in community practice.[4] In addition, older patients appear to receive less aggressive treatment than younger patients.

John Zaia, MD
Latest Article

Commentary (Forman/Zaia): Vaccinations Against Infectious Diseases in Hematopoietic Stem Cell Transplant Recipients

With the increasing successof both autologous and allogeneicmarrow transplantationin achieving cure of inheritedand acquired disorders, the numberof people who have become longtermsurvivors has steadily increasedworldwide. Concomitant with thisincrease has been greater attention tothe long-term health needs of theserecipients. Many studies have outlinedthe problems experienced bylong-term survivors and have betterinformed physicians about the medicalproblems that may require interventionand consultation.[1]

Johnnie J. Orozco, MD, PhD
Latest Article

Unfavorable, Complex, and Monosomal Karyotypes: The Most Challenging Forms of Acute Myeloid Leukemia

Although the overall prognosis for patients with acute myeloid leukemia (AML) associated with unfavorable, complex, or monosomal karyotypes is poor, some patients can be cured.