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1.
J Thorac Oncol ; 13(8): 1138-1145, 2018 08.
Article in English | MEDLINE | ID: mdl-29874546

ABSTRACT

BACKGROUND: Despite the significant antitumor activity of pembrolizumab in NSCLC, clinical benefit has been less frequently observed in patients whose tumors harbor EGFR mutations compared to EGFR wild-type patients. Our single-center experience on the KEYNOTE-001 trial suggested that pembrolizumab-treated EGFR-mutant patients, who were tyrosine kinase inhibitor (TKI) naïve, had superior clinical outcomes to those previously treated with a TKI. As TKI naïve EGFR-mutants have generally been excluded from pembrolizumab studies, data to guide treatment decisions in this patient population is lacking, particularly in patients with programmed death ligand 1 (PD-L1) expression ≥50%. METHODS: We conducted a phase II trial (NCT02879994) of pembrolizumab in TKI naive patients with EGFR mutation-positive, advanced NSCLC and PD-L1-positive (≥1%, 22C3 antibody) tumors. Pembrolizumab was administered 200 mg every 3 weeks. The primary endpoint was objective response rate. Secondary endpoints included safety of pembrolizumab, additional pembrolizumab efficacy endpoints, and efficacy and safety of an EGFR TKI after pembrolizumab. RESULTS: Enrollment was ceased due to lack of efficacy after 11 of 25 planned patients were treated. Eighty-two percent of trial patients were treatment naïve, 64% had sensitizing EGFR mutations, and 73% had PD-L1 expression ≥50%. Only 1 patient had an objective response (9%), but repeat analysis of this patient's tumor definitively showed the original report of an EGFR mutation to be erroneous. Observed treatment-related adverse events were similar to prior experience with pembrolizumab, but two deaths within 6 months of enrollment, including one attributed to pneumonitis, were of concern. CONCLUSIONS: Pembrolizumab's lack of efficacy in TKI naïve, PD-L1+, EGFR-mutant patients with advanced NSCLC, including those with PD-L1 expression ≥50%, suggests that it is not an appropriate therapeutic choice in this setting.


Subject(s)
Antibodies, Monoclonal, Humanized/therapeutic use , B7-H1 Antigen/biosynthesis , Carcinoma, Non-Small-Cell Lung/drug therapy , Lung Neoplasms/drug therapy , Adult , Aged , Carcinoma, Non-Small-Cell Lung/pathology , ErbB Receptors/genetics , Female , Humans , Lung Neoplasms/genetics , Lung Neoplasms/metabolism , Lung Neoplasms/pathology , Male , Middle Aged , Mutation , Protein Kinase Inhibitors/therapeutic use
2.
J Pain Symptom Manage ; 22(1): 575-83, 2001 Jul.
Article in English | MEDLINE | ID: mdl-11516599

ABSTRACT

This open-label study evaluated the long-term safety and tolerability of oral transmucosal fentanyl citrate (OTFC) in ambulatory cancer patients with breakthrough pain undergoing cancer care at 32 university- or community-based practices. Patients had participated in a previous short-term titration trial of OTFC, were experiencing at least one episode per day of breakthrough pain, and had achieved relief of their breakthrough pain with an opioid. Patients received OTFC units at a starting dosage strength determined in the short-term trial (200-1600 microg). Outcome measures included number of successfully treated breakthrough pains, global satisfaction rating (0 = poor through 4 = excellent), and side effects. In total, 41,766 units of OTFC were used to treat 38,595 episodes of breakthrough pain in 155 patients. Number of treatment days ranged from 1 to 423 (mean, 91 days). Patients averaged 2.9 breakthrough pain episodes per day. About 92% of episodes were successfully treated with OTFC and there was no trend toward decreased effectiveness over time. Most patients (61%) did not require dose escalation during treatment. Global satisfaction ratings were consistently above 3, indicating very good to excellent relief. Common adverse events associated with OTFC were somnolence (9%), constipation (8%), nausea (8%), dizziness (8%), and vomiting (5%). Six patients (4%) discontinued therapy due to an OTFC-related adverse event. There were no reports of abuse and no concerns about the safety of the drug raised by patients or families. OTFC was used safely and effectively during long-term treatment of breakthrough pain in cancer patients at home.


Subject(s)
Analgesics, Opioid/administration & dosage , Analgesics, Opioid/therapeutic use , Fentanyl/administration & dosage , Fentanyl/therapeutic use , Neoplasms/complications , Pain/drug therapy , Pain/etiology , Administration, Oral , Adult , Aged , Aged, 80 and over , Ambulatory Care , Female , Humans , Male , Middle Aged , Patient Satisfaction , Time Factors
3.
Pain ; 91(1-2): 123-30, 2001 Mar.
Article in English | MEDLINE | ID: mdl-11240084

ABSTRACT

Oral transmucosal fentanyl citrate (OTFC); Actiq) is a drug delivery formulation used for management of breakthrough cancer pain. Previous studies with open-label comparisons indicated OTFC was more effective than patients' usual opioid for breakthrough pain. The objective of this study was to compare OTFC and morphine sulfate immediate release (MSIR) for management of breakthrough pain in patients receiving a fixed scheduled opioid regimen. This double-blind, double-dummy, randomized, multiple crossover study was conducted at 19 US university- and community-based hospitals and clinics and comprised 134 adult ambulatory cancer patients. Patients were receiving a fixed scheduled opioid regimen equivalent to 60-1000 mg/day oral morphine or 50-300 microg/h transdermal fentanyl, were using a 'successful' MSIR dose (15-60 mg) as defined by entry criteria, and were experiencing 1-4 episodes of breakthrough pain per day. In open-label fashion, OTFC was titrated such that a single unit (200-1600 microg) provided adequate pain relief with acceptable side effects. Successfully titrated patients entered the double-blind phase of the study and received ten prenumbered sets of randomized capsules and oral transmucosal units. Five sets were the successful OTFC dose paired with placebo capsules, and five sets were placebo OTFC paired with capsules containing the successful MSIR dose. Patients took one set of study medication for each episode of target breakthrough pain. Pain intensity (PI), pain relief (PR) and global performance of medication (GP) scores were recorded. Pain intensity differences (PID) were calculated and 15-min PID was the primary efficacy variable. Adverse events were recorded. Sixty-nine percent of patients (93/134) found a successful dose of OTFC. OTFC yielded outcomes (PI, PID, and PR) at all time points that were significantly better than MSIR. GP also favored OTFC and more patients opted to continue with OTFC than MSIR following the study. Somnolence, nausea, constipation, and dizziness were the most common drug-associated side effects. In conclusion, OTFC was more effective than MSIR in treating breakthrough cancer pain.


Subject(s)
Analgesics, Opioid/therapeutic use , Fentanyl/therapeutic use , Morphine/therapeutic use , Neoplasms/drug therapy , Palliative Care , Administration, Oral , Adult , Aged , Aged, 80 and over , Analgesics, Opioid/administration & dosage , Analgesics, Opioid/adverse effects , Cross-Over Studies , Dose-Response Relationship, Drug , Double-Blind Method , Female , Fentanyl/administration & dosage , Fentanyl/adverse effects , Humans , Male , Middle Aged , Morphine/administration & dosage , Morphine/adverse effects , Neoplasms/physiopathology , Pain Measurement , Treatment Outcome
4.
Cancer Chemother Pharmacol ; 46(5): 403-10, 2000.
Article in English | MEDLINE | ID: mdl-11127945

ABSTRACT

PURPOSE: In recognition of the variety of available chemotherapeutic modulating agents and their potential to enhance the efficacy of platinum-based therapy, we embarked upon a phase I study to investigate the feasibility of combining fixed doses of carboplatinum (CBDCA) and etoposide (VP-16) with 24-h concurrent infusions of dipyridamole (DP), prochlorperazine (PCZ) and cyclosporine A (CSA) administered in escalating doses. METHODS: Patients received intravenous VP-16 (200 mg/m2) and CBDCA (300 mg/m2), each over 30 min, starting at hour 6 of the modulator infusions. Resistance modulators were escalated sequentially to determine their respective maximally tolerated doses (MTDs). The pharmacokinetics (PK) of VP-16, CBDCA, and the three drug resistance (DR) modifiers were studied in eight patients. RESULTS: A total of 59 patients were entered on study. The MTD was established at DP 5 mg/kg per day, PCZ 24 mg/h, and CSA 9.5 mg/kg per day. Dose-limiting toxicities included hypotension and severe sedation, presumably related to PCZ. No objective responses were seen. PK studies were performed when PCZ and DP doses were 24 mg/h and 3.3 mg/kg, and the CSA dose was either 8.5 mg/kg (five patients) or 9.5 mg/kg (three patients). The median clearance of VP-16 was 0.96 l/h per m2 (range 0.8-1.5 l/h per m2), which is lower than for VP-16 alone and similar to previously reported effects of CSA on VP-16 elimination. The median measured CBDCA AUC was 3.0 mg/ml x min (range 2.4-4.8 mg/ml x min). CBDCA AUC predicted by the Calvert formula using measured creatinine clearance underestimated the actual AUC in seven of the eight patients, in one case by as much as twofold. The median end of infusion PCZ and total DP plasma concentrations were 1.2 microM (range 0.5-2.2 microM) and 4.4 microM (range 1.3-5.9 microM), respectively, consistent with in vitro resistance modulatory levels. However, free DP was only 0.02 microM (range 0.004-0.04 microM). The median CSA level at 24 h of 1450 microg/l (range 1075-1640 microg/l) is in agreement with concentrations required for partial DR reversal in vitro, although it is much lower than levels achieved in our previous phase I study of CBDCA + CSA alone using similar doses of CSA. The CSA dose on the current trial was escalated beyond the MTD for the previous phase I study, suggesting that there may be an interaction between CSA and one of the other modulators. CONCLUSION: These results demonstrate that in vitro DR-reversing levels of two of the three agents used in this study can be achieved in vivo, and that this combination of DR modulators has significant effects on the pharmacokinetics of VP-16.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Neoplasms/drug therapy , Adult , Aged , Antiemetics/administration & dosage , Antineoplastic Agents/administration & dosage , Antineoplastic Agents, Phytogenic/administration & dosage , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Antineoplastic Combined Chemotherapy Protocols/pharmacokinetics , Carboplatin/administration & dosage , Cyclosporine/administration & dosage , Dipyridamole/administration & dosage , Etoposide/administration & dosage , Female , Humans , Immunosuppressive Agents/administration & dosage , Male , Middle Aged , Neoplasms/metabolism , Neoplasms/pathology , Prochlorperazine/administration & dosage , Treatment Outcome , Vasodilator Agents/administration & dosage
5.
J Am Med Dir Assoc ; 1(3): 109-13, 2000.
Article in English | MEDLINE | ID: mdl-12818022

ABSTRACT

OBJECTIVE: Many residents in long-term care facilities experience nonmalignant pain, and analgesic therapy is often inadequate in this setting. We examined the management of chronic nonmalignant pain in elderly nursing home residents. DESIGN: Retrospective chart review. SETTING: Forty skilled nursing facilities in southern California. PARTICIPANTS: Residents with a diagnosis of noncancer pain who were receiving a regular regimen of prescribed analgesics. MEASUREMENTS: The following information was recorded: demographic data, specific diagnosis for pain medication, all analgesics in current use by the resident, whether a pain rating score was available for the resident and, if so, the current score. RESULTS: Of the 3400 resident charts screened, 381 residents (11.2%) met the criteria for inclusion in the study. There were 443 diagnoses for chronic nonmalignant pain, primarily arthritis and other musculoskeletal disorders. Of 510 prescriptions for analgesics, 52% were for acetaminophen or nonsteroidal antiinflammatory medications. Centrally acting analgesics, primarily opioids, accounted for 48% of all prescriptions. Approximately three-fourths of opioid prescriptions were for fixed-dose combinations with acetaminophen, and 15% were for long-acting opioids. Pain scores were not recorded on any of the residents' charts. CONCLUSION: Nonmalignant pain in these elderly nursing home residents was often associated with musculoskeletal disorders and was not assessed systematically. Without routine pain assessments, it is not possible to determine whether the residents' pain was being treated adequately by the analgesics prescribed. We recommend a multidisciplinary approach to the institution of pain assessment and management guidelines in long-term care facilities.

6.
Gynecol Oncol ; 75(3): 419-26, 1999 Dec.
Article in English | MEDLINE | ID: mdl-10600300

ABSTRACT

Forty-three patients with ovarian cancer were entered on this trial and treated with intravenous (iv) cyclophosphamide (C) and doxorubicin (A), and intraperitoneal (ip) cisplatin (DDP), every 21 days for eight cycles. Following iv hydration, the cisplatin was administered through an intraperitoneal catheter in 2 L of 0.9% normal saline with a 4-h dwell. All patients are evaluable for overall and progression-free survival with a median follow-up of 70 months (range: 3-162 months); 39 patients are evaluable for response. All complete responses were surgically confirmed. The median age was 59 (range 28-82 years); 3 patients were stage IC, 5 were IIC, 14 patients were stage III (optimally debulked), 14 patients were stage III (suboptimally debulked), and 7 patients were stage IV. Two patients had received prior alkylator therapy. Six of 8 patients with Stage IC or II remain without evidence of disease at a mean of 12 years following chemotherapy. Of 14 optimally debulked stage III patients, there were 7 complete responses, 3 partial responses, 1 patient with stable disease, and 3 inevaluable patients. Of 14 suboptimally debulked stage III patients there were 4 complete responses, 4 partial responses, 3 with stable disease, 2 progressions on treatment, and 1 inevaluable patient. Five-year progression-free and overall survivals for stage III optimally debulked patients are 21 and 64%, respectively. At 10 years, progression-free and overall survivals for this group are 21 and 29%, respectively. Toxicity included neutropenia (complicated by sepsis in 2 patients), infrequent thrombocytopenia, and mild anemia. Three patients developed transient serum creatinine elevations >2.0 mg/dl; however, decreased creatinine clearance was noted in 93/258 (36%) of evaluable courses which required a cisplatin dose reduction per protocol. Controllable hypomagnesemia, nausea, and emesis were also observed. We conclude that the combination of iv CA and ip DDP is an effective regimen with long-term progression-free and overall survivals that compare favorably with those of other published studies of intravenous or intraperitoneal chemotherapy. This report is unusual in terms of the prolonged follow-up for all patients enrolled. These long-term results lend further support to recently published trials documenting the efficacy of intraperitoneal chemotherapy for patients with this disease.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Ovarian Neoplasms/drug therapy , Adult , Aged , Aged, 80 and over , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Cisplatin/administration & dosage , Cyclophosphamide/administration & dosage , Doxorubicin/administration & dosage , Female , Follow-Up Studies , Humans , Injections, Intraperitoneal , Middle Aged , Ovarian Neoplasms/mortality
7.
Pain ; 79(2-3): 303-12, 1999 Feb.
Article in English | MEDLINE | ID: mdl-10068176

ABSTRACT

Oral transmucosal fentanyl citrate (OTFC) is a novel opioid formulation in which the potent synthetic mu-agonist fentanyl is embedded in a sweetened matrix that is dissolved in the mouth. It is undergoing investigation as a treatment for cancer-related breakthrough pain, a prevalent phenomenon defined as a transitory flare of moderate to severe pain that interrupts otherwise controlled persistent pain. There have been no controlled trials of other treatments for this condition. To evaluate the safety and efficacy of ascending doses of OTFC, a novel controlled dose titration methodology was developed that applied blinding and randomization procedures to the evaluation of recurrent pains in the home environment. The study was a multicenter, randomized, double-blind dose titration study in ambulatory cancer patients. The sample comprised adult patients receiving a scheduled oral opioid regimen equivalent to 60-1000 mg oral morphine per day, who were experiencing at least one episode per day of breakthrough pain and had achieved at least partial relief of this pain by use of an oral opioid rescue dose. After collection of 2 days of baseline data concerning the efficacy of the usual rescue drug, patients were randomly treated with either 200 or 400 microg OTFC unit doses in double-blind fashion. Up to two breakthrough pains each day could be treated with up to four OTFC unit doses per pain. OTFC in unit doses containing 200, 400, 600, 800, 1200 or 1600 microg of fentanyl citrate were available for the study. The unit dose was titrated upward in steps until the patient had 2 consecutive days on which breakthrough pain could be treated with the single unit dose, titration was ineffective at a 1600 microg unit dose, or 20 days elapsed. To maintain the double-blind, orders to titrate up were ignored one-third of the time according to a pre-defined randomization schedule accessible only to an unblinded study pharmacist. Main outcome measures included, numeric or categorical measures of pain intensity, pain relief, and global assessment of drug performance. Dose response relationships were found suggesting that the methodology was sensitive to opioid effects. Seventy-four percent of patients were successfully titrated. There was no relationship between the total daily dose of the fixed schedule opioid regimen and the dose of OTFC required to manage the breakthrough pain. Although the study was not designed to provide a definitive comparison between OTFC and the usual rescue drug, exploratory analyses found that OTFC provided significantly greater analgesic effect at 15, 30 and 60 min, and a more rapid onset of effect, than the usual rescue drug. Adverse effects of the OTFC were typically opioid-related, specifically somnolence, nausea and dizziness. Very few adverse events were severe or serious. This study demonstrated the feasibility of controlled trial methodology in studies of breakthrough pain. OTFC appears to be a safe and effective therapy for breakthrough pain, and dose titration can usually identify a unit dose capable of providing adequate analgesia. If the lack of a relationship between the effective OTFC dose and fixed schedule opioid regimen is confirmed, dose titration may be needed in the clinical use of this formulation. Further investigation of OTFC as a specific treatment for breakthrough pain is warranted.


Subject(s)
Analgesics, Opioid/therapeutic use , Fentanyl/therapeutic use , Neoplasms/complications , Pain, Intractable/drug therapy , Administration, Oral , Adult , Aged , Analgesics, Opioid/administration & dosage , Analgesics, Opioid/adverse effects , Dose-Response Relationship, Drug , Double-Blind Method , Female , Fentanyl/administration & dosage , Fentanyl/adverse effects , Humans , Male , Middle Aged , Pain Measurement , Pain, Intractable/etiology , Prospective Studies , Time Factors
9.
J Clin Oncol ; 16(10): 3238-45, 1998 Oct.
Article in English | MEDLINE | ID: mdl-9779697

ABSTRACT

PURPOSE: Supplemental, "as-needed," administration of an opioid is a common approach to the problem of breakthrough pain in cancer patients. Oral transmucosal fentanyl citrate (OTFC) is undergoing investigation as a new treatment for breakthrough pain. The primary purpose of the study was to demonstrate that a single-unit dose of OTFC can safely and effectively treat breakthrough pain. A secondary goal was to determine appropriate dosing guidelines. PATIENTS AND METHODS: This was a multicenter, randomized, double-blind, dose-titration study in 62 adult cancer patients using transdermal fentanyl for persistent pain. Consenting patients provided 2 days of baseline data to evaluate the performance of their usual breakthrough pain medication. Patients then randomly received 200 microg or 400 microg OTFC in double-blind fashion. (Patients were always assigned, rather than randomized, to 200 microg if 400 microg represented > 20% of around-the-clock medication.) Pain intensity (PI), pain relief (PR), and global satisfaction scores were recorded. OTFC was then titrated until the patient received adequate PR for each episode using one OTFC unit. Orders to titrate up were ignored one third of the time to improve the blind. Two days of baseline data were compared with 2 days of OTFC data after titration identified an effective dose of OTFC. RESULTS: Most patients (76%) found a safe and effective dose of OTFC. There was no meaningful relationship between the around-the-clock opioid regimen and the effective dose of OTFC. In open-label comparisons, OTFC produced a faster onset of relief and a greater degree of PR than patients' usual breakthrough medication. Somnolence, nausea, and dizziness were the most common side effects associated with OTFC. CONCLUSION: Most patients find a single OTFC dosage that adequately treats breakthrough pain. The optimal dose is found by titration and is not predicted by around-the-clock dose of opioids.


Subject(s)
Analgesics, Opioid/administration & dosage , Fentanyl/administration & dosage , Neoplasms/complications , Pain/drug therapy , Administration, Buccal , Administration, Cutaneous , Adult , Aged , Aged, 80 and over , Analgesics, Opioid/adverse effects , Double-Blind Method , Drug Administration Schedule , Female , Fentanyl/adverse effects , Humans , Male , Middle Aged
10.
J Pain Symptom Manage ; 16(3): 184-92, 1998 Sep.
Article in English | MEDLINE | ID: mdl-9769621

ABSTRACT

Current guidelines on the treatment of moderate to severe cancer pain recommend the use of scheduled doses of opioids for persistent pain combined with "as needed" doses of similar agents for breakthrough pain. Oral drugs given on an "as needed" basis can be problematic for patients with difficulty in swallowing or for those who suffer from nausea and vomiting. Further, breakthrough pain can become excruciating in a relatively short time, a drawback for analgesics that require gastrointestinal (GI) absorption before pain relief can begin. Hence, there is considerable interest in the development of novel drug administration routes to provide rapid relief of breakthrough pain, particularly through a route that bypasses the GI system. Sublingually administered morphine has sometimes been used in the treatment of breakthrough pain because some believe it provides effective analgesia via an appropriate alternate route. Available pharmacological data, however, do not consistently support the rapid absorption of morphine through the sublingual mucosa, and clinical data concerning the efficacy of sublingual morphine for the treatment of cancer pain are limited, not well-controlled, and inconclusive. While there seems to be a need for provision of rapid, effective analgesia to cancer patients by an alternative route, sublingual morphine may not satisfy this requirement. Newer formulations of analgesics should be tested in the treatment of breakthrough pain due to cancer.


Subject(s)
Analgesics, Opioid/administration & dosage , Analgesics, Opioid/therapeutic use , Morphine/administration & dosage , Morphine/therapeutic use , Administration, Sublingual , Analgesics, Opioid/pharmacokinetics , Humans , Morphine/pharmacokinetics
11.
Cancer Res ; 58(13): 2793-800, 1998 Jul 01.
Article in English | MEDLINE | ID: mdl-9661893

ABSTRACT

In this Phase I study, the maximally tolerated doses (MTDs) of i.p. iododeoxyuridine (IdUrd) alone and in combination with i.v. calcium leucovorin (LV) were determined. The pharmacokinetics and pharmacological advantage of IdUrd were evaluated, and flow cytometric analysis allowed examination of the extent of incorporation of IdUrd into tumor cells with and without the addition of i.v. LV. Thirty-nine patients with advanced neoplasms primarily confined to the peritoneal space were enrolled in a dose-escalation trial using 4-h dwells of IdUrd administered i.p. daily for 4 days with and without an i.v. infusion of LV 500 mg/m2/day for 4.5 days. Twenty-three patients received single-agent therapy, and 13 patients received i.p. IdUrd in combination with i.v. LV. The MTD of single-agent IdUrd administered on this schedule was 4125 mg/m2/day for 4 days; and that of the IdUrd in combination was 3438 mg/m2/day. Dose-limiting toxicities were myelosuppression and stomatitis. During the period of the dwell, the peritoneal AUC (area under the curve) of IdUrd exceeded the plasma AUC of IdUrd by one or two orders of magnitude in all patients at all doses tested; there was a possible effect of LV on peritoneal AUC. The geometric mean pharmacological advantage (AUCperitoneal/ AUCplasma) was 181 at 625 mg/m2/day and 90 at 4538 mg/m2/day. Flow cytometric analysis suggests saturation of IdUrd measured in DNA at the 2500-3125 mg/m2 dose level, without an increase after the addition of LV. Twelve patients received 4-12 courses of therapy. One patient with recurrent ovarian cancer who received 16 courses of therapy experienced complete resolution of her ascites, near normalization of CA-125 levels, and improved quality of life; two patients with high-risk tumors receiving "adjuvant" therapy are disease-free at 3 and 6 years after treatment; other patients experienced transient clearing of ascites. The recommended Phase II dose of i.p. IdUrd using a 4-h dwell daily for 4 days is 3750 mg/m2/day alone or 3125 mg/m2/day in combination with continuous i.v. LV at 500 mg/m2/day for 4.5 days. Although flow cytometric data suggest that DNA incorporation of IdUrd is not affected by the addition of LV, the cytotoxicity of the combination regimen may be increased due to LV-enhanced, IdUrd-related inhibition of thymidylate synthase. For this reason, we recommend that efficacy studies of the combination continue in parallel with studies of IdUrd alone.


Subject(s)
Antidotes/administration & dosage , Antimetabolites, Antineoplastic/administration & dosage , Idoxuridine/administration & dosage , Leucovorin/administration & dosage , Peritoneal Neoplasms/drug therapy , Adult , Aged , Antimetabolites, Antineoplastic/adverse effects , Antimetabolites, Antineoplastic/pharmacokinetics , CA-125 Antigen/blood , DNA, Neoplasm/metabolism , Drug Administration Schedule , Drug Therapy, Combination , Female , Gastrointestinal Neoplasms/blood , Gastrointestinal Neoplasms/drug therapy , Humans , Idoxuridine/adverse effects , Idoxuridine/pharmacokinetics , Injections, Intraperitoneal , Injections, Intravenous , Male , Middle Aged , Ovarian Neoplasms/blood , Ovarian Neoplasms/drug therapy , Pancreatic Neoplasms/blood , Pancreatic Neoplasms/drug therapy , Peritoneal Neoplasms/blood
13.
Am J Hosp Palliat Care ; 15(1): 13-22, 1998.
Article in English | MEDLINE | ID: mdl-9468974

ABSTRACT

Cancer pain is significantly undertreated, but the current armamentarium of opioids and other analgesics are such that no cancer patient should be in pain. The guidelines for the treatment of cancer pain suggest that a long-acting, preferably oral, opioid be administered around the clock for persistent baseline pain, along with a short-acting oral opioid for episodes of breakthrough pain. Morphine is the gold standard for ATC opioid treatment, and OTFC is emerging as a potent agent for the management of breakthrough pain. The careful assessment and management of persistent cancer pain and breakthrough pain will help realize the goal of optimal pain management for all cancer patients.


Subject(s)
Analgesics, Opioid/therapeutic use , Neoplasms/complications , Pain Measurement/methods , Pain/drug therapy , Pain/etiology , Humans , Practice Guidelines as Topic , Terminal Care/methods
15.
Cancer Chemother Pharmacol ; 39(3): 254-8, 1997.
Article in English | MEDLINE | ID: mdl-8996529

ABSTRACT

A group of 18 patients with advanced cancer were entered on a phase I study of a 120-h continuous intravenous infusion of hydroxyurea. The dose of hydroxyurea was escalated in cohorts of patients from 1 to 2 to 3.2 g/ m2 per day. The primary dose-limiting toxicity was neutropenia, often accompanied by leukopenia, thrombocytopenia and generalized skin rash. Prophylactic treatment of patients with dexamethasone and diphenhydramine hydrochloride prevented the skin rash, but not the hematopoietic toxicities. The pharmacokinetics of hydroxyurea were studied in all patients. The steady-state concentrations of hydroxyurea were linearly correlated with the dose (R2 = 0.71, n = 18, P < 0.0001). The mean +/- SE concentrations were 93 +/- 16, 230 +/- 6 and 302 +/- 27 microM at 1, 2 and 3.2 g/m2 per day, respectively. The mean +/- SE renal and nonrenal clearances of hydroxyurea were 2.14 +/- 0.18 and 3.39 +/- 0.28 l/h per m2 (n = 16), neither of which correlated with the dose. The concentration of hydroxyurea in plasma decayed monoexponentially with a mean +/- SE half-life of 3.25 +/- 0.18 h (n = 17). The steady-state concentration of hydroxyurea was > 200 microM in all nine patients treated at 2 g/m2 per day, a dose which was well tolerated for 5 days. We recommend this dose for phase II trials in combination with other antineoplastic agents.


Subject(s)
Antineoplastic Agents/pharmacokinetics , Hydroxyurea/pharmacokinetics , Neoplasms/metabolism , Adult , Antineoplastic Agents/administration & dosage , Antineoplastic Agents/adverse effects , Drug Administration Schedule , Humans , Hydroxyurea/administration & dosage , Hydroxyurea/adverse effects , Infusions, Intravenous , Neoplasms/drug therapy , Neutropenia/chemically induced
16.
Clin Cancer Res ; 3(12 Pt 1): 2337-45, 1997 Dec.
Article in English | MEDLINE | ID: mdl-9815632

ABSTRACT

The purpose of this study was to determine the maximally tolerated dose of doxorubicin administered during two cycles of intensive chemotherapy with cyclophosphamide and doxorubicin without stem cell support in patients with advanced cancer and to assess the cumulative cardiac toxicity of the regimen by noninvasive radionuclide imaging and by pre-and postchemotherapy endomyocardial biopsies. Thirty-eight patients (thirty-six with high risk or metastatic breast cancer) were treated in a dose-escalation trial using a fixed dose of i.v. cyclophosphamide (4.2 g/m2) administered over 2 h on day 5 and escalating doses of doxorubicin (50-175 mg/m2) given as a 96-h continuous i.v. infusion on days 1-4, using Filgrastim (granulocyte colony-stimulating factor) for hematological support beginning on day 6. All patients underwent pretreatment, and 28 patients underwent postchemotherapy endomyocardial biopsies. Twenty-nine of 38 patients received two cycles of treatment (median number of days between cycles, 44; range, 34-62). Twenty-one patients had received doxorubicin previously at cumulative dose levels

Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Breast Neoplasms/drug therapy , Cyclophosphamide/adverse effects , Doxorubicin/adverse effects , Granulocyte Colony-Stimulating Factor/therapeutic use , Adult , Antineoplastic Combined Chemotherapy Protocols/administration & dosage , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Breast Neoplasms/pathology , Cyclophosphamide/administration & dosage , Doxorubicin/administration & dosage , Feasibility Studies , Female , Filgrastim , Gated Blood-Pool Imaging , Heart/diagnostic imaging , Heart/drug effects , Humans , Infusions, Intravenous , Lymphatic Metastasis , Middle Aged , Neoplasm Metastasis , Neoplasm Staging , Recombinant Proteins
17.
J Clin Oncol ; 13(9): 2158-65, 1995 Sep.
Article in English | MEDLINE | ID: mdl-7666074

ABSTRACT

PURPOSE: To share the development, implementation, and evaluation of a program called "An Institutional Commitment to Pain Management," which is based on the philosophy of organizational influence on pain management. METHODS: A tested pain education model was disseminated to 32 physician/nurse teams in settings throughout California, after which the 64 professionals returned to their institutions to serve as role models and catalysts to change the practice of pain management. Each team member completed a 39-item survey about knowledge and attitudes related to pain, which was developed by B.R.F. and colleagues, and also identified three goals for the implementation of course information. Precourse data also included administration of the knowledge and attitudes survey to participating physicians' and nurses' colleagues (10 physicians and 20 nurses per institution). Each team completed five chart audits using the pain audit tool (PAT), which was developed by B.R.F. and colleagues at the City of Hope National Medical Center. The PAT identifies how pain is managed currently at the institutional level. Final course evaluation 8 months after course completion included a summary of activities implemented by the teams as well as the factors that served as barriers and benefits to improve the quality of pain management. RESULTS: Two hundred seventy-two physicians and 629 nurses completed the survey about knowledge and attitudes related to pain, and 154 PATs were submitted. These results, as well as evaluation at the completion of the course, are discussed. CONCLUSION: The Institutional Commitment to Pain Management program is an evolving model that was developed to overcome barriers to pain relief by obtaining the commitment from institutions to improve the management of pain for their patients.


Subject(s)
Pain/drug therapy , Adult , Child , Education, Medical, Continuing , Education, Nursing, Continuing , Health Knowledge, Attitudes, Practice , Health Plan Implementation , Humans , Organizational Objectives , Patient Care Planning , Patient Care Team , Program Development , Program Evaluation
18.
J Clin Oncol ; 13(3): 756-64, 1995 Mar.
Article in English | MEDLINE | ID: mdl-7533828

ABSTRACT

PURPOSE: The purpose of this survey was to determine the scope of supportive care services (SCS) designed to promote quality of life during cancer therapies at National Cancer Institute (NCI)-designated cancer centers. METHODS: A survey was mailed to the medical directors and nursing directors of 52 NCI-designated comprehensive (n = 26), clinical (n = 11), and planning cancer centers (n = 15) in the United States. Only one survey was completed from each institution. Survey questions identified services provided such as pain management, terminal care, psychosocial programs, and spiritual care. RESULTS: Thirty-nine questionnaires were received for a total response rate of 75%. Of the respondents, 45% were comprehensive cancer centers, 24% clinical cancer centers, and 29% planning centers. One center did not identify their NCI designation. Sixty-one percent of the centers reported research programs in supportive care. Outside funding was reported in 51% of the respondents, with 39% having American Cancer Society (ACS) or National Institutes of Health (NIH) funding and 28% having private industry funding. Overall SCS self-ratings improved from a 21% rating of excellent to very good 5 years ago to the current 54% rating. CONCLUSION: Survey results provide data on SCS across a representative sample of NCI cancer centers and can be used to develop standards for future cancer control programs.


Subject(s)
Cancer Care Facilities , National Institutes of Health (U.S.) , Neoplasms/therapy , Palliative Care , Humans , Neoplasms/physiopathology , Pain Management , Quality of Life , Social Support , Surveys and Questionnaires , Terminal Care , United States
19.
J Cancer Res Clin Oncol ; 121(2): 103-6, 1995.
Article in English | MEDLINE | ID: mdl-7883772

ABSTRACT

A phase II trial of menadione (2.5 g/m2 as a continuous intravenous infusion over 48 h) followed by mitomycin C (10-20 mg/m2 i.v. bolus) administered every 4-6 weeks was performed in 43 patients with advanced gastrointestinal cancer. Menadione, a vitamin K analog that lowers intracellular pools of reduced glutathione, was combined with mitomycin C in an attempt to overcome thiol-mediated resistance to alkylating-agent chemotherapy. The median age of patients entered on this trial was 58 years; performance status ranged from 60%-100%. None of the 43 evaluable patients obtained an objective response to this combination regimen. Median survival was 6.6 months. Treatment with menadione and mitomycin C was reasonably well tolerated except for hematological toxicity. A total of 27% of treatment courses were complicated by grade 3 or 4 hematological toxicity including one episode of hemolytic anemia and one episode of hemolytic uremic syndrome. One patient developed irreversible interstitial pneumonitis, and 1 patient had an asymptomatic decrease in the left-ventricular ejection fraction. Despite preclinical evidence indicating that menadione pretreatment enhances the cytotoxicity of mitomycin C, our study documents the resistance of advanced gastrointestinal cancers, particularly colorectal cancer, to mitomycin C modulated by menadione.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Gastrointestinal Neoplasms/drug therapy , Adult , Aged , Female , Humans , Male , Middle Aged , Mitomycin/administration & dosage , Mitomycin/adverse effects , Vitamin K/administration & dosage , Vitamin K/adverse effects
20.
Cancer Invest ; 13(5): 460-3, 1995.
Article in English | MEDLINE | ID: mdl-7552810

ABSTRACT

A phase II trial of 5-fluorouracil (5-FU) [250-450 mg/m2/day x 5 days as an intravenous (IV) bolus] combined with calcium leucovorin (500 mg/m2/day x 5 1/2 days by continuous IV infusion) administered on a 28-day schedule was performed in 15 patients with advanced hepatocellular carcinoma. The median age was 58 years; performance status ranged from 50 to 100%. Of 15 evaluable patients, 1 (7%) had a partial response lasting 2.4 months; 8 (53%) had stable disease with a median duration of 5.7 months; and 6 (40%) had progressive disease with a median time to progression of 2.7 months. Median survival was 3.8 months. Treatment with 5-FU and calcium leucovorin was moderately well tolerated; 9% of the treatment courses were complicated by grade 3 or 4 hematological toxicity, and 10% of the courses were complicated by grade 3 or 4 gastrointestinal toxicity. Despite the efficacy of the combination of 5-FU and leucovorin in advanced colorectal cancer, our results document the general resistance of hepatocellular carcinoma to modulated 5-FU.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Carcinoma, Hepatocellular/drug therapy , Liver Neoplasms/drug therapy , Adult , Aged , Aged, 80 and over , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Female , Fluorouracil/administration & dosage , Humans , Leucovorin/administration & dosage , Male , Middle Aged
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