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Biomedical subjects

Maurie Markman

Publications and source records attributed to Maurie Markman.

At least 145 records · Page 8Linked to original sources
PubMed2002

Managing taxane toxicities.

The two commercially available taxanes (paclitaxel and docetaxel) are widely employed in standard oncologic practice. Toxicity of the agents includes bone marrow suppression (principally neutropenia), complete alopecia, and hypersensitivity reactions. While both drugs can cause neurotoxicity and myalgias/arthralgias, this is a greater clinical concern with paclitaxel. Docetaxel can be associated with the development of significant fluid retention (e.g., edema, ascites, pleural effusions), the incidence and severity of which appear to be limited by prophylactic treatment with corticosteroids both before and after each treatment. If patients are monitored closely (e.g., for hypersensitivity reactions, bone marrow suppression) the taxanes have a favorable side effect profile, and it is currently uncommon for treatment to be discontinued because of the development of excessive toxicity.

Antineoplastic Agents, Phytogenic↗
PubMed2002

Safety issues in using complementary and alternative medicine.

PURPOSE: A number of reports have documented the apparent increasing popularity of complementary and alternative medicine (CAM) among cancer patients. Unfortunately, there are limited available published data regarding the potential toxicity of a variety of CAM strategies. METHODS: A review of the medical literature was undertaken to highlight the potential side effects of CAM. RESULTS: Although many CAM approaches are quite safe, both minor and major toxicities have been documented, including emesis, hypersensitivity reactions, cardiovascular events, neurologic dysfunction, hepatic and renal failure, and the development of malignant disease. CONCLUSION: It is important that oncologists are aware of what nonprescription CAM medications are being taking by their patients and have a basic understanding of the potential toxicities of these agents.

Drug Interactions↗
PubMed2002

Phase II trial of weekly single-agent paclitaxel in platinum/paclitaxel-refractory ovarian cancer.

PURPOSE: We wished to critically examine the level of activity of weekly paclitaxel in a patient population with well-characterized platinum/paclitaxel-resistant (3-week schedule) ovarian cancer. PATIENTS AND METHODS: Eligibility criteria for this phase II trial included the following: ovarian and fallopian tube cancers or primary carcinoma of the peritoneum; prior initial therapy with platinum/paclitaxel; and failure to respond to treatment (progression or stable disease as best response), or a response duration of less than 3 months, or if the response was more than 3 months, retreatment with both agents required and failure to respond a second time or the response duration was less than 3 months. Measurable or assessable disease (CA-125 response criteria) was required. Patients received weekly paclitaxel (80 mg/m(2)) until disease progression, unacceptable toxicity developed, or they elected to discontinue treatment. RESULTS: Fifty-three patients (52 assessable for toxicity and 51 for response) were entered onto this multi-institution trial. Of 248 total cycles (887 doses), only 13 (1%) were modified (dose reduction or treatment delay) because of side effects. Therapy was discontinued in five patients because of toxicity (four because of peripheral neuropathy, and one because of painful fingernail beds). Thirteen patients (25%; 95% confidence interval, 13.5% to 37.5%) achieved an objective response (four by CA-125 criteria, and nine by > or = 50% reduction of measurable disease). CONCLUSION: Weekly paclitaxel (80 mg/m(2)) is generally well tolerated and is an active second-line regimen against ovarian cancer that has demonstrated resistance to platinum/paclitaxel delivered on an every-3-week schedule.

Adult↗
PubMed2002

Randomized trial of cisplatin and ifosfamide with or without bleomycin in squamous carcinoma of the cervix: a gynecologic oncology group study.

PURPOSE: Phase II trial reports have suggested that the addition of bleomycin to the combination of cisplatin and ifosfamide may improve response rates and possible survival in squamous carcinoma of the cervix. This study prospectively evaluates the combination of bleomycin to this regimen in women with histologically proven advanced recurrent or persistent squamous cell carcinoma of the cervix. PATIENTS AND METHODS: Eligible women were randomized to receive either cisplatin (50 mg/m(2)), ifosfamide (5 g/m(2) over 24 hours), and mesna (6 g/m(2) during ifosfamide infusion and the following 12 hours) (CI) versus bleomycin 30 units over 24 hours on day 1 followed by cisplatin (50 mg/m(2)), ifosfamide (5 g/m(2) over 24 hours), and mesna (6 g/m(2) during ifosfamide infusion and the following 12 hours) (CIB). Three hundred three women were enrolled onto this trial, of which 287 were assessable. RESULTS: There were no significant differences between CI and CIB with regard to response rates (32% v 31.2%, respectively), progression-free survival (PFS), or overall survival. PFS and survival were associated with initial performance status (PS). Patients with a PS of 0 experienced a lower rate of failure (P =.013) and a lower risk of death (P =.009) compared with patients with PS of 2. The most frequent grade 3/4 toxicities were leukopenia, neutropenia, anemia, thrombocytopenia, and nausea and vomiting. Neither regimen was associated with a significant increase in incidence of these toxicities. CONCLUSION: The CI regimen was virtually identical to CIB with regard to response rate, PFS, survival, and toxicity profile. Thus, the addition of bleomycin in the dose-schedule employed to cisplatin and ifosfamide did not improve outcome in patients with advanced cervical cancer.

Adult↗
PubMed2002

Intraperitoneal chemotherapy for ovarian carcinoma: results of long-term follow-up.

PURPOSE: To determine long-term survival and predictors of recurrence in a retrospective cohort of patients with epithelial ovarian cancer treated with intraperitoneal (IP) chemotherapy. PATIENTS AND METHODS: Records were reviewed of 433 patients who received IP therapy for ovarian cancer between 1984 and 1998; follow-up data were available for 411 patients. IP therapy was provided as consolidation therapy (n = 89), or for treatment of persistent (n = 310) or recurrent (n = 12) disease after surgery and initial systemic therapy; therapy usually consisted of platinum-based combination therapy. Statistical analysis included tests for associations between potential prognostic factors, and between prognostic factors and survival. Survival probabilities were estimated by Kaplan-Meier methods, and prognostic factors for survival were evaluated by a Cox proportional hazard model. RESULTS: The mean age of patients was 52 years (range, 25 to 76 years). Distribution by stage and grade was as follows: stage I, 7; II, 24; III, 342; IV, 52; not available (NA), 8; and grade 1, 30; 2, 99; and 3, 289; NA, 15. The median survival from initiation of IP therapy by residual disease was none, 8.7 years; microscopic, 4.8 years; less than 1 cm, 3.3 years; more than 1 cm, 1.2 years. In a multivariate analysis, the only significant predictors of long-term survival were grade and size of residual disease at initiation of IP therapy. CONCLUSION: Prolonged survival was observed in selected patients receiving IP platinum-based therapy. It is not possible to determine the contribution of IP therapy to survival in this study. A relationship between size of disease at the initiation of IP therapy and long-term survival was demonstrated.

Adenocarcinoma↗
PubMed2002

Acanthosis nigricans with endometrial carcinoma: case report and review of the literature.

BACKGROUND: Acanthosis nigricans is classified into benign and malignant forms on the basis of clinical associations. The main interest in acanthosis nigricans has been based on its association with malignancy because of the dramatic clinical appearance of the skin lesions and the usually rapidly fatal nature of the underlying disease. "Tripe palms" is a descriptive term of acanthosis nigricans of the palms. It more often is associated with internal malignancy. Most importantly, it often precedes the diagnosis of a new or recurrent tumor. Malignant acanthosis nigricans is most commonly associated with intra-abdominal malignancies. There are very few reports in the literature of malignant acanthosis nigricans associated with gynecological malignancies. Only five cases of endometrial carcinoma associated with acanthosis nigricans and/or tripe palms have been reported in the literature. CASE: A 69-year-old African-American female presented with skin changes consistent with the diagnosis of acanthosis nigricans and tripe palms. More than 14 months later she was found to have endometrial carcinoma. She subsequently underwent total abdominal hysterectomy and salpingo-oophorectomy followed by chemotherapy with paclitaxel and carboplatin. During treatment of the underlying malignancy the skin condition dramatically improved. CONCLUSION: Tripe palms can be associated with endometrial carcinoma and may be the first sign of malignancy. Malignant acanthosis nigricans may improve with treatment of the underlying malignancy. Patients who present with tripe palms may need to undergo workup to search for underlying malignancy.

Acanthosis Nigricans↗
PubMed2002

Effectiveness of serotonin-receptor antagonist antiemetic therapy over successive courses of carboplatin-based chemotherapy.

PURPOSE: There are extremely limited data available in the general oncology or gynecologic cancer literature to document the effectiveness of antiemetic therapy over multiple courses of cytotoxic chemotherapy. METHODS: To examine this highly clinically relevant issue, we analyzed the complete treatment course of patients with gynecologic cancers receiving carboplatin-based chemotherapy regimens who had participated in one of four institutional serotonin-receptor antagonist antiemetic trials, which had specifically evaluated the benefits of such therapy during only the first treatment course. Medical records were reviewed to examine the development of emesis during subsequent chemotherapy treatment cycles. RESULTS: The 91 patients included in this analysis received a median of 6 courses (range 1-18) of carboplatin (initial AUC dose 4, 5, and 6 in 29, 29, and 32 patients, respectively). All received ondansetron or granisetron plus dexamethasone with every treatment course. Complete control of emesis (no acute or delayed nausea or vomiting) was experienced by 56 (62%) patients during every cycle. Conversely, 20% of women noted one or more episodes of nausea without vomiting and 19% developed at least one incidence of vomiting. In no case was emesis considered to be severe (grade 3), and no patient required either discontinuation of carboplatin or a dose reduction due to the development of emesis. CONCLUSION: In the large majority of patients, serotonin-receptor antagonist antiemetic therapy, administered in combination with dexamethasone, is highly effective over multiple courses in preventing significant carboplatin-induced nausea and vomiting.

Adult↗
PubMed2002

Second-line therapy of ovarian cancer with Paclitaxel administered by both the intravenous and intraperitoneal routes: rationale and case reports.

BACKGROUND: A strong rationale can be proposed to support the delivery of paclitaxel by both the intravenous and the intraperitoneal routes in the management of ovarian cancer. This includes efforts to increase the concentration and duration of exposure of this cycle-specific agent within the body compartment (regional therapy) and a desire to optimize delivery of drug to tumor by capillary flow (systemic therapy). CASE REPORTS: Two patients cared for in the Gynecologic Cancer Program of the Cleveland Clinic Foundation provided an opportunity to explore, in a preliminary manner, the feasibility and toxicity of this unique approach. Both patients demonstrated reasonable tolerance of the dual-route management strategy. CONCLUSION: In a carefully selected patient population, the administration of paclitaxel both systemically and regionally is a rational management strategy. Randomized controlled clinical trials will be required to determine if this approach is superior to standard intravenous drug delivery.

Antineoplastic Agents, Phytogenic↗
PubMed2002

Second-line treatment of ovarian cancer with single-agent gemcitabine.

Single-agent gemcitabine has been examined in several phase II trials in platinum- and paclitaxel-resistant advanced ovarian cancer. In this population, where patients are often heavily pretreated prior to the administration of gemcitabine, an acceptable dose and schedule is 800 to 1,000 mg/m(2) weekly for 3 weeks, followed by a 1-week rest. The anticipated objective response rate in the platinum/taxane-resistant population is approximately 15%. This level of activity (confirmed in several phase II trials), and the generally favorable toxicity profile for gemcitabine in this group of patients, leads to the conclusion that single-agent gemcitabine is a reasonable second-line treatment option in previously treated women with advanced ovarian cancer.

Antimetabolites, Antineoplastic↗
PubMed2002

Paclitaxel in cancer therapy.

The last decade witnessed the introduction of exciting new chemotherapeutic agents. Among these, paclitaxel emerged as one of the most powerful compounds. Paclitaxel promotes the polymerisation of tubulin, thereby causing cell death by disrupting the normal microtubule dynamics required for cell division and vital interphase processes. Mechanisms of acquired resistance to paclitaxel include alterations of tubulin structure and the amplification of membrane phosphoglycoproteins that function as drug-efflux pumps. Toxicities associated with paclitaxel include hypersensitivity reaction, neurotoxicity and haematological toxicities. Toxicities may be both dose- and schedule-dependent. Paclitaxel has activity against a broad band of tumour types, including breast, ovarian, lung, head and neck cancers. Paclitaxel also has activity in other malignancies that are refractory to conventional chemotherapy, including previously-treated lymphoma and small cell lung cancers and oesophageal, gastric endometrial, bladder and germ cell tumours. Paclitaxel is also active against AIDS-associated Kaposi's sarcoma.

Antineoplastic Agents, Phytogenic↗
PubMed2002

Role of chemotherapy in the management of ovarian cancer.

Ovarian cancer is a highly chemotherapy-sensitive malignancy. With current treatment, most women presenting with advanced disease will achieve an objective response and experience major and sustained improvement of cancer-related symptoms. Unfortunately, the majority of patients will ultimately recur, such that second-line treatment options will need to be considered. Further complicating the decision-making process in choosing an 'optimal' second-line regimen is a serious paucity of randomized trials in this clinical setting.

Antineoplastic Combined Chemotherapy Protocols↗
PubMed2002

Assessing cancer clinical trials: will your patient benefit from a 'breakthrough'?

Cancer patients and their families often ask their primary care physicians if a new treatment reported in the news can help them. Physicians familiar with the long and complicated process of oncologic clinical trials are in the best position to assess the potential for clinical benefit from a new antineoplastic therapy.

Clinical Trials as Topic↗
PubMed2002

Progress in preventing chemotherapy-induced nausea and vomiting.

Our understanding of the pathophysiology of emesis has improved over the past 2 decades, and we now have drugs that can prevent acute emesis in most patients. Prevention and treatment of the delayed and anticipatory forms of chemotherapy-induced emesis remain a challenge.

Antiemetics↗