PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “Infusions, Intralesional”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 145 records · Page 8Linked to original sources

Intratumoral chemotherapy.

In an effort to improve survival from malignant gliomas, investigators have used intratumoral chemotherapy protocols to deliver high doses of tumoricidal agents directly to the brain. Theoretically, these infusions bypass the blood-brain barrier, minimize systemic drug levels and the side effects of chemotherapy, and achieve prolonged elevations of intracerebral chemotherapeutic agents relative to those obtainable by systemic administration. Almost all major classes of chemotherapeutic agents have been examined as possible intratumoral therapies via delivery approaches ranging from simple intratumoral injections to implantable computer-driven constant infusion pumps and biodegradable polymer matrices. In this review, we summarize the major clinical trials and experimental investigations underlying the development of intratumoral chemotherapy as a treatment for gliomas.

Animals↗

Enhancement of cisplatin sensitivity of quiescent cells in solid tumors by combined treatment with tirapazamine and low-temperature hyperthermia.

We examined the enhanced chemosensitivity of quiescent (Q) cells in solid tumors to cis-diamminedichloroplatinum (II) (cisplatin) by combined treatment with tirapazamine (TPZ) and mild heating. C3H/He and Balb/c mice bearing SCC VII and EMT6/KU tumors, respectively, received continuous administration of 5-bromo-2'-deoxyuridine (BrdU) for 5 days using implanted mini-osmotic pumps to label all proliferating (P) cells. TPZ was administered intraperitoneally 2 h before cisplatin injection and/or tumors were locally heated at 40 degrees C for 60 min immediately after cisplatin injection. Sixty minutes after cisplatin injection, the tumors were excised, minced and trypsinized. The tumor cell suspensions were incubated with cytochalasin-B (a cytokinesis blocker), and the micronucleus (MN) frequency in cells without BrdU labeling (= Q cells) was determined using immunofluorescence staining for BrdU. The MN frequency in total (P+Q) tumor cells was determined from the tumors that were not pretreated with BrdU. The sensitivity to cisplatin was evaluated in terms of the frequency of induced micronuclei in binuclear tumor cells (MN frequency). Other groups of tumor-bearing C3H/He and Balb/c mice not given BrdU were injected with 195mPt-radiolabeled cisplatin. In both tumor systems, the MN frequency in Q cells was lower than that in the total cells. TPZ and mild heat treatment elevated the MN frequency in total and Q cells in both tumor systems, and to a higher extent in Q cells. The combination of TPZ and mild heat treatment increased the MN frequency more markedly than treatment with either TPZ or mild heating alone. In total tumor cells, TPZ and mild heat treatment increased the MN frequency in EMT6/KU tumor cells more markedly than in SCC VII tumor cells. 195mPt-labeled cisplatin uptake into total tumor cells was increased by mild heat treatment but not by TPZ. The cisplatin-sensitivity of Q cells was lower than that of total cells in both tumor systems. TPZ was thought to sensitize Q cells by killing the hypoxic cells without influencing tumor blood flow, and mild hyperthermia appeared to sensitize Q cells by distributing more cisplatin with an increase in blood flow in solid tumors.

Animals↗

Adoptive immunotherapy administered via the hepatic artery and intralesional interleukin-2 in hepatocellular carcinoma.

We assessed the feasibility of using lymphokine-activated killer cells (adoptive immunotherapy) with infusions of interleukin-2 when given regionally in three patients with unresectable primary hepatocellular carcinoma (PHC). In 2 patients, 2 cycles, which included a bolus of LAK (10(7) to 10(8) cells followed by a 4-hourly infusion of IL-2 were administered via selective arterial catheterization of the hepatic artery. One further patient received 3 cycles of IL-2 alone by direct intralesional and perilesional injections. Minimal toxicity was observed and side effects such as fever were comparable to those observed with systemic infusions of IL-2 alone. Serial alpha-fetoprotein (AFP) levels initially fell but subsequently rose within 2 to 4 weeks of therapy. AFP levels had not reached pre-treatment values at 4 months in 2 patients, 1 of whom was alive and well at 15 months follow-up.

Carcinoma, Hepatocellular↗

Treatment of scalp angiosarcoma by controlled perfusion of A. carotis externa with pegylated liposomal doxorubicin and intralesional application of pegylated interferon alfa.

BACKGROUND: Angiosarcoma of the scalp is a rare but highly aggressive malignant tumor that differentiates toward vascular endothelial cells and shows a tendency for diffuse, often clinically occult spread. OBSERVATIONS: A 65-year-old Caucasian man presented with multiple erythematous skin lesions at the right scalp hemisphere and a prominent forehead edema that had developed during a period of 2 months. The clinical diagnosis of angiosarcoma was confirmed by histopathology. Because of the advanced local progression of the tumor and the unilateral localization on the right side of the scalp, we initiated an intra-arterial chemotherapy using pegylated liposomal doxorubicin (Caelyx) (8 mg/cycle every 4 weeks by an A. carotis externa port system). In addition, the patient received pegylated interferon alfa (50 microg/wk) by a percutaneous intralesional injection route. After 2 months, the tumor showed a marked regression; after 4 months, only one nodule located at the margins of the area perfused by the A. carotis externa persisted but regressed after focal irradiation. At 30 months after diagnosis, the patient shows no recurrence of tumor growth. CONCLUSIONS: In combination with intralesional interferon alfa, intra-arterial doxorubicin may be a promising innovative therapeutic option for localized scalp angiosarcoma, a hitherto poorly manageable and aggressive malignant tumor.

Aged↗

Intratumoral echo-guided injection of interleukin-2 and lymphokine-activated killer cells in hepatocellular carcinoma.

Interleukin-2 has proved to be effective for the intralesional treatment of tumors of the bladder. There are examples in literature of hepatocellular carcinoma (HCC) treatment with lymphokine-activated killer (LAK) cells infused in the hepatic artery. We decided to check the effects of echo-guided intralesional injection of these cells in this disease. We treated 5 patients with inoperable hepatocellular carcinoma, following cirrhosis; in 4 cases the mass had a diameter less than 3 cm (small HCC) while in the remaining case it measured 7 cm. Tumor size remained unchanged in 3 of the 4 small HCC, and increased only slightly in the other (over a period of 10 months). This would appear to indicate that treatment halted neoplasm growth or at least slowed it down. The echo pattern of the lesions changed, with a constant reduction in echogenicity. Finally, in multiple control biopsies, fibrosis, present in only one case before treatment, was found fairly constantly after treatment. There were no significant side effects, apart from slight water retention in one patient. On the basis of our preliminary results, we consider it worthwhile continuing this study to establish the most suitable IL-2 doses and analyze in more detail the modifications induced in the neoplasm.

Aged↗

Intralesional chemotherapy for head and neck carcinoma: a review of the literature.

In the last decade chemotherapy has gained widespread acceptance in the treatment of oral and pharyngeal cancer. Current standard treatment for advanced lesions consists of concomitant radiation and chemotherapy. This approach has provided marginal improvement of prognosis for Stage III-IV disease. Recent studies have explored the idea that locally delivered cytotoxic drugs could further improve prognosis in this patient population. We review this literature with the objective of popularizing these data and suggesting future directions for treatment and clinical research for head and neck cancer.

Antineoplastic Agents↗

[Intralesional and transarterial administration of interferon for renal cell carcinoma].

Topical administration of interferon for locally recurrent renal cell carcinoma in 2 cases was reported. Case 1: a 56-year-old woman had undergone radical nephrectomy for left renal cell carcinoma. She had a locally recurrent tumor adjacent to spleen 26 months after the surgery. She received 3 million units of interferon alpha every day intralesionally for almost 3 years without any distant metastasis. Case 2: a 59-year-old man had undergone left radical nephrectomy for renal cell carcinoma. He had recurrent tumor contiguous to spleen 24 months after nephrectomy. With Seldinger method a catheter was indwelled selectively in splenic artery. Two million units of interferon gamma was administered through the catheter, twice a week for 4 weeks, and once a week in subsequent course. The tumor showed necrosis on CT film. He died of DIC 5 months after the initiation of intraarterial administration of interferon gamma. Topical use of interferon showed some favorable effects in both cases even after the failure of systemic administration. Further investigation is warranted to demonstrate the advantage of topical use of interferon over systemic administration.

Carcinoma, Renal Cell↗

Significance of reduction surgery in multidisciplinary treatment of advanced hepatocellular carcinoma with multiple intrahepatic lesions.

BACKGROUND AND OBJECTIVES: By comparing the survival rates of patients treated with or without surgery, the significance of, and the indication for, reduction surgery in the multidisciplinary treatment of patients with HCC with multiple intrahepatic lesions were examined. METHODS: In patients with HCC with multiple intrahepatic lesions, cumulative survival rates were determined and compared for 28 patients (group S) who underwent reductive hepatic resection and 43 (group N) who were treated nonsurgically by transcatheter arterial infusion chemotherapy (TAI), transcatheter arterial chemoembolization (TACE), or percutaneous transhepatic ethanol injection therapy. In group S, 20 patients had adjuvant therapy, consisting of ethanol injection therapy or microwave coagulonecrotic therapy for the remaining satellite lesions during hepatectomy, and all patients in this group underwent TAI or TACE postoperatively. The influence of surgery on patient survival was examined by multiple regression analysis using the Cox's hazard model; then, for each prognostic factor, survival rates were obtained and compared between the groups. RESULTS: In group S, the 1-, 3-, and 5-year cumulative survival rates were 58.2%, 27.1%, and 21.7%, whereas the corresponding values in group N were 34.3%, 4.7%, and 4.7%, the difference being statistically significant (P = 0.0239). In group S, the 1-, 3-, and 5-year cumulative survival rates for patients without intraoperative adjuvant therapy were 25%, 0%, and 0%, whereas those for patients with intraoperative adjuvant therapy were 72.7%, 41.3%, and 33.0% (P = 0.001). Multiple regression analysis showed that hepatic resection, the Child-Pugh score, and the size of the main tumor affected survival independently. Univariate analysis of differences in the cumulative survival rates between the groups as a function of prognostic factor showed that group S had statistically significant better survival rates than group N in those subgroups of patients who were <60 years old, with HBV infection, with a Child-Pugh score of 5 or 6, with a main tumor of <5-cm diameter, with <5 tumors, or without portal thrombi. CONCLUSIONS: When combined with intraoperative adjuvant therapy for remaining satellite tumors, reduction surgery provided survival benefit for patients with HCC with multiple intrahepatic lesions in those groups of patients selected by criteria determined in this study.

Aged↗

Study of repeated arterial infusion chemotherapy with a subcutaneously implanted reservoir for advanced hepatocellular carcinoma.

We performed repeated arterial infusion chemotherapy (RAIC) in 114 advanced hepatocellular carcinoma (HCC) patients, using a subcutaneous reservoir implanted under ultrasonic guidance. In 60 patients, this was the initial therapy for the primary tumor and the other 54 patients being treated for recurrent tumor. One hundred and seventy-one patients with advanced HCC who had been treated by transcatheter arterial embolization (TAE) or single bolus arterial infusion chemotherapy before RAIC was available served as historical controls. In 97 patients, anticancer agents (4'-epidoxorubicin or acurarubicin) and Lipiodol emulsion were used, and in 17, anticancer agents alone were given. The response rates were 39.2% in the Lipiodol group and 17.6% in the non-Lipiodol group. The dose of Lipiodol and the degree of liver invasion were the most important factors influencing the response rate. The 1-, 2-, and 3-year survival rates were 55.0%, 30.9%, and 21.2%, respectively. The long-termsurvival was compared in relation to Child's classification and the presence or absence of portal vein tumor thrombosis (PVTT). In non-PVTT patients, the results of initial therapy and therapy for recurrence were similar, but recurrent Child's C patients showed a poorer prognosis. In PVTT patients, initial therapy had a better prognosis than treatment for recurrence, but initial Child's C patients had a poor long-termprognosis. During the observation period, no severe complications were encountered, but in Child's C patients, hepatic function sometimes deteriorated. Compared with the results in the 171 controls, RAIC was more useful for advanced HCC as initial therapy, and it was also beneficial for the treatment of recurrence after TAE.

Aged↗

Global approach to hepatic metastases from colorectal cancer: indication and outcome of intra-arterial chemotherapy and other hepatic-directed treatments.

Liver metastases of colorectal cancer is present in more than 20% of new diagnosed patients and in 40-60% of relapsed patients. It is a life-threatening prognostic aspect. Hepatic resection, when possible, is the best therapeutic modality, although the overall survival rate is still low (30%). Angiography and intraoperative ultrasonography are useful for resection. The number of hepatic metastases and the surgical margin are probably the most significant prognostic factors. Colorectal cancer may spread predominantly to the liver making regional treatment strategies viable options. Subtotal hepatic resections and segmentectomies are potentially curable procedures for single or small numbers of hepatic metastases without other sites of disease. However, there have been no prospective randomized trials comparing patients with unresected liver metastases and resected metastases. Regional chemotherapy with floxuridine seems usefull combined with hepatic resection or as palliative therapy. Gastric ulcer and biliary sclerosis are the main related toxicities. Patients with localized, unresectable hepatic metastases or concomitant bad medical condition may be candidates for radiation, percutaneous ethanol injection, cryosurgery, percutaneous radiofrequency, hypoxic flow-stop perfusions with bioreductive alkylating agents, hepatic arterial ligation, embolization and chemoembolization. These new hepatic-directed modalities of treatment are being investigated and may offer new approaches to providing palliation and prolonging survival. This review will report the possibilities of intra-arterial chemotherapy and other novel hepatic-directed approaches to the treatment of liver metastases from colorectal cancer.

Antineoplastic Agents↗

Multimodality management of hepatocellular carcinoma larger than 10 cm.

BACKGROUND: Hepatic resection for huge hepatocellular carcinoma (HCC) is challenging. The role of multimodality nonsurgical therapy for HCC larger than 10 cm is unclear. STUDY DESIGN: We retrospectively investigated 131 HCC patients with main tumors larger than 10 cm in diameter seen between October 1990 and October 2001. Fifty-six patients (group A) underwent hepatectomy and 75 patients (group B) underwent nonsurgical multidisciplinary therapy including hepatic arterial infusion, transcatheter arterial embolization, and percutaneous acetic acid injection. RESULTS: Patients in group B were older, had lower serum albumin levels, and there were more patients with liver cirrhosis and great vessel invasion. Median survivals of group A and B patients were 17 months and 7 months, respectively (p < 0.001). But the 1-, 3-, 5-year survival rates in group B using 38 patients undergoing 3 or more sessions of nonsurgical treatment were not significantly worse than those for group A using 53 patients with followup (57.1%, 19.0%, 16.3% versus 60.7%, 24.5%, 24.5%, respectively). Group A patients had 37.7% and 71.7% recurrence rates at 6 and 12 months, respectively, after operation, and they had a significantly higher frequency of overall extrahepatic recurrence compared with group B patients (43.4% versus 18.7%, p = 0.005). In group B, only 3 of 35 patients younger than 60 years had tumor shrinkage after nonsurgical treatment modalities in comparison to 17 of 40 patients in the elderly group (p = 0.003). Younger patients had a significantly higher prevalence of hepatitis B surface antigen positivity (85.7% versus 47.5%) and infiltrating tumor growth pattern (74.3% versus 45.0%) compared with older patients. CONCLUSIONS: Our study suggests that the advantage of hepatic resection in patients with huge HCC is marginal. An effective adjuvant therapy is needed to improve outcomes after hepatic resection. The experience in using nonsurgical treatment shows that the result is poor in young patients compared with that in elderly patients.

Acetic Acid↗

Nonsurgical treatment of hepatocellular carcinoma.

While surgical resection and tumor ablation are the preferred therapies for hepatocellular carcinoma (HCC), these are available or appropriate in only a minority of patients. This reflects the usual comorbidity of severe underlying liver disease that either precludes surgery or makes the surgical approach extremely dangerous. Nonetheless, regional control of HCC is highly relevant and many regional strategies have been explored, including hepatic intra-arterial chemotherapy transarterial chemoembolization, lipiodol chemoembolization, radiation therapy, cryosurgery, percutaneous ethanol injection, and radiofrequency ablation. In addition, a variety of systemic chemotherapeutic agents have been tested in HCC, including various combinations of 5-fluorouracil, doxorubicin, epirubicin, etoposide, cisplatin, and mitoxantrone, as well as interferon, tamoxifen, capecitabine, thalidomide, and octreotide. Published data regarding these regional and systemic therapies will be discussed in this review.

Angiogenesis Inhibitors↗

Novel chemotherapeutic approaches to brain tumors.

In reviewing the numerous investigational drug trials for patients with anaplastic gliomas over the past 20 years, it would be fair to say that there have been more than a few disappointments and that the real impact of many of these therapies on patients' duration and quality of survival has been minor at best. It is also fair to state that there has been progress in developing new types of chemotherapy and other agents, in devising new treatment strategies, and in gaining a deeper understanding of the problems that must be overcome to treat patients with anaplastic gliomas successfully. The past several years have seen the realization that oligodendroglioma, primary CNS lymphoma, and medulloblastoma are sensitive to chemotherapy treatments. It is hoped that future studies will delineate better the optimal use of chemotherapy for these tumors.

Antineoplastic Agents↗

Therapeutic management algorithm in cirrhotic and noncirrhotic patients in primary or secondary liver masses.

The treatment of hepatic tumors in cirrhotic and noncirrhotic patients still represents a major issue in decision making for oncologists and surgeons. The high mortality of open liver surgery, particularly in cirrhotic patients, has pushed physicians to research new modalities. In this review paper we summarize the available and alternative methods for the treatment of liver masses using new modalities and a minimally invasive approach, which will benefit the quality of life of the patients. We also outline therapeutic plan options.

Alcohols↗

Liver-directed therapies in colorectal cancer.

The liver is the most common site of metastatic colorectal cancer (CRC) and the status of this organ is an important determinant of overall survival in patients with advanced disease. Complete resection of hepatic CRC metastases can provide a long-term cure for some patients, but the majority of liver metastases are not amenable to such surgery. Furthermore, most patients after curative resection ultimately suffer from recurrence, and the majority of such failures occur in the liver. Various ablative techniques can achieve local control of tumor after incomplete resection or for palliation. Tumor ablation currently has a secondary therapeutic role, as there is no evidence that it can achieve long-term survival comparable to surgical resection. Regional chemotherapy delivers tumoricidal agents in a selective fashion, minimizing systemic toxicity and damage to normal liver cells. Chemotherapy agents delivered through the hepatic artery can extend time to liver recurrence after curative resection and may prolong survival both in the adjuvant setting and when given to patients with unresectable disease. Molecular-based therapies, such as gene delivery and oncolytic viruses, provide promise for curative outcomes in patients with advanced disease.

Adenoviridae↗

Intratumoral pharmacokinetics of oligonucleotides in a tissue-isolated tumor perfusion system.

The intratumoral pharmacokinetics of model oligonucleotides were studied in Walker 256 tissue-isolated tumor preparations using an in situ single-pass vascular perfusion technique. A 20-mer phosphodiester (PO) oligonucleotide, its fully phosphorothioated (PS) oligonucleotide counterpart, and an 18-mer phosphorothioated oligonucleotide containing four 2'-O-methylribonucleosides at both the 3'-end and 5'-end (PS-OMe) were used. These oligonucleotides were administered to the tumor in two ways, by constant arterial infusion and by direct intratumoral injection. In the case of constant arterial infusion, the experiments were carried out using perfusate with or without 4.7% bovine serum albumin (BSA). The protein binding of PO, PS, and PS-OMe to BSA was 46%, 87%, and 94%, respectively. No marked difference was observed between the degree of accumulation of the three types of oligonucleotides in the tumor when BSA was present in the perfusate. PS and PS-OMe showed higher degrees of accumulation in tumors compared with PO when no BSA was present. These results indicate that free (i.e., protein unbound) PS-OMe and PS have superior tumor accumulation characteristics. In the intratumoral injection experiments, PS-OMe was retained longer in tumor tissue compared with PS, suggesting that it might be useful for direct local injection into solid tumors. Thus, the present study provides useful information about the basic disposition characteristics of oligonucleotides in solid tumors.

Animals↗