• Archives of Pharmacal Research
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• 제24권6호
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• pp.485-498
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• 2001

Helicobacter pylori is one of the most commonly encountered human pathogens. It has been shown to be closely associated with peptic ulcer disease (PUD), gastric adenocarcinoma, and the gastric mucosa-associated lymphoid tissue (MALT) that may lead to gastric lymphoma. The current diagnostic methods include histology, microbiological culture, classic serology unease activity detection, polymerase chain reaction (PCR) and stool antigen detection. Its treatment modality options are multiple; however, a triple regimen consisting of a proton pump inhibitor (PPI), and two antibiotics for 10 to 14 days is preferred. Drug resistance is a growing problem in this organism and new therapeutic options are currently limited .

• Tuberculosis and Respiratory Diseases
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• 제86권3호
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• pp.234-244
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• 2023

Background: Effective treatment of fluoroquinolone-resistant multidrug-resistant tuberculosis (FQr-MDR-TB) is difficult because of the limited number of available core anti-TB drugs and high rates of resistance to anti-TB drugs other than FQs. However, few studies have examined anti-TB drugs that are effective in treating patients with FQr-MDR-TB in a real-world setting. Methods: The impact of anti-TB drug use on treatment outcomes in patients with pulmonary FQr-MDR-TB was retrospectively evaluated using a nationwide integrated TB database (Korean Tuberculosis and Post-Tuberculosis). Data from 2011 to 2017 were included. Results: The study population consisted of 1,082 patients with FQr-MDR-TB. The overall treatment outcomes were as follows: treatment success (69.7%), death (13.7%), lost to follow-up or not evaluated (12.8%), and treatment failure (3.9%). On a propensity-score-matched multivariate logistic regression analysis, the use of bedaquiline (BDQ), linezolid (LZD), levofloxacin (LFX), cycloserine (CS), ethambutol (EMB), pyrazinamide, kanamycin (KM), prothionamide (PTO), and para-aminosalicylic acid against susceptible strains increased the treatment success rate (vs. unfavorable outcomes). The use of LFX, CS, EMB, and PTO against susceptible strains decreased the mortality (vs. treatment success). Conclusion: A therapeutic regimen guided by drug-susceptibility testing can improve the treatment of patients with pulmonary FQr-MDR-TB. In addition to core anti-TB drugs, such as BDQ and LZD, treatment of susceptible strains with later-generation FQs and KM may be beneficial for FQr-MDR-TB patients with limited treatment options.

• Tuberculosis and Respiratory Diseases
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• 제83권1호
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• pp.20-30
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• 2020

Tuberculosis (TB) remains a threat to public health and is the leading cause of death globally. Isoniazid (INH) is an important first-line agent for the treatment of TB considering its early bactericidal activity. Resistance to INH is now the most common type of resistance. Resistance to INH reduces the probability of treatment success and increases the risk of acquiring resistance to other first-line drugs such as rifampicin (RIF), thereby increasing the risk of multidrug-resistant-TB. Studies in the 1970s and 1980s showed high success rates for INH-resistant TB cases receiving regimens comprised of first-line drugs. However, recent data have indicated that INH-resistant TB patients treated with only firs-tline drugs have poor outcomes. Fortunately, based on recent systematic meta-analyses, the World Health Organization published consolidated guidelines on drug-resistant TB in 2019. Their key recommendations are treatment with RIF-ethambutol (EMB)-pyrazinamide (PZA)-levofloxacin (LFX) for 6 months and no addition of injectable agents to the treatment regimen. The guidelines also emphasize the importance of excluding resistance to RIF before starting RIF-EMB-PZA-LFX regimen. Additionally, when the diagnosis of INH-resistant TB is confirmed long after starting the first-line TB treatment, the clinician must decide whether to start a 6-month course of RIF-EMB-PZA-LFX based on the patient's condition. However, these recommendations are based on observational studies, not randomized controlled trials, and are thus conditional and based on low certainty of the effect estimates. Therefore, further work is needed to optimize the treatment of INH-resistant TB.

• 한국임상약학회지
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• 제13권2호
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• pp.59-66
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• 2003

Filgrastim is used as an indispensable adjuvant drug to reduce the degree and duration of chemotherapy-induced neutropenia. The purpose of this research is to study the use of filgrastim by reviewing retrospective medical records of breast cancer patients who have been treated by filgtastim in the National Cancer Center. 84 patients have received 323 cycles of chemotherapy, of which 134 cycles were treated by filgrastim $(41.5\%)$. Among those 134 cycles, 34 were for prophylaxis $(21.6\%)$, and 100 for treatment of neutropenia $(74.6\%)$. The frequence of filgrastim usage was more than $50\%$ in frequency with regimens containing docetaxel. For prophylaxis, the median of filgrastim initiation was measured on the day of chemotherapy (-3rd-13th). For the treatment, on the other hand, the median appeared on the 9th day (4th-2lst) after chemotherapy, which showed very wide distribution. Time to filgrastim initiation ranged between the 7th and the 9th day after chemotherapy in docetaxel+doxorubicin combination regimen and docetaxel single regimen, whereas it showed after the 10th day in doxorubicin+cyclophosphamide combination regimens. For the treatment, 48 out of 61 patients $(73.8\%)$ in 63 cycles have experienced fever, had to visit the emergency room, required hospitalization, caused infection, transfusion, dosage reduction and schedule changes in spite of using filgrastim with chemotherapy. For prophylaxis, 11 out of 19 patients $(17.9\%)$ in 11 cycles have experienced the same results. In conclusion, the guideline of time to the initiation and the last is required for cost-effective administration of filgrastim because of the difference occurring ANC nadir, the severity and duration of neutropenia by chemotherapy regimens.

• Parasites, Hosts and Diseases
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• 제46권2호
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• pp.65-70
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• 2008

Artemisinin-based combination therapy (ACT) is currently promoted as a strategy for treating both uncomplicated and severe falciparum malaria, targeting asexual blood-stage Plasmodium falciparum parasites. However, the effect of ACT on sexual-stage parasites remains controversial. To determine the clearance of sexual-stage P. falciparum parasites from 342 uncomplicated, and 217 severe, adult malaria cases, we reviewed and followed peripheral blood sexualstage parasites for 4 wk after starting ACT. All patients presented with both asexual and sexual stage parasites on admission, and were treated with artesunate-mefloquine as the standard regimen. The results showed that all patients were asymptomatic and negative for asexual forms before discharge from hospital. The percentages of uncomplicated malaria patients positive for gametocytes on days 3, 7, 14, 21, and 28 were 41.5, 13.1, 3.8, 2.0, and 2.0%, while the percentages of gametocyte positive severe malaria patients on days 3, 7, 14, 21, and 28 were 33.6, 8.2, 2.7, 0.9, and 0.9%, respectively. Although all patients were negative for asexual parasites by day 7 after completion of the artesunate-mefloquine course, gametocytemia persisted in some patients. Thus, a gametocytocidal drug, e.g., primaquine, may be useful in combination with an artesunate-mefloquine regimen to clear gametocytes, so blocking transmission more effectively than artesunate alone, in malaria transmission areas.

• Asian Pacific Journal of Cancer Prevention
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• 제15권2호
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• pp.899-904
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• 2014

Concurrent chemo-radiation (CRT) has been established as the standard of care for non-metastatic loco-regionally advanced nasopharyngeal carcinoma (NPC) but recently the addition of induction chemotherapy in the already established regimen has presented an attractive multidisciplinary approach. This retrospective study was carried out to evaluate the efficacy of induction chemotherapy (IC) followed by CRT for the management of loco-regionally advanced NPC. Between July 2005 and September 2010, 99 patients were treated with cisplatin based IC followed by CRT. Induction chemotherapy included a 2 drug combination; intravenous gemcitabine $1000mg/m^2$ on day 1 and 8 and cisplatin $75mg/m^2$ on day 1 only. Radiotherapy (RT) was given as a phase treatment to a total dose of 70 Gy in 35 fractions. Concurrent cisplatin ($75mg/m^2$) was administered to all patients on days 1, 22 and 43. All patients were evaluated for tumor response and adverse effects after IC and 6 weeks after the completion of the treatment protocol. Statistical analysis was performed using SPSS version 17 and Kaplan Meier estimates were applied to project survival. Median follow-up duration was 20 months. The 5-year overall survival (OS), loco regional control (LRC) and relapse free survival (RFS) rates were 71%, 73% and 50%respectively. Acute grade 4 toxicity related to induction chemotherapy and concurrent chemo-radiation was 4% and 2% respectively, with only 3 toxicity-related hospital admissions. We conclude that induction gemcitabine and cisplatin followed by chemo-radiation is a safe and effective regimen in management of nasopharyngeal carcinoma, meriting further investigation in randomized clinical trials.

• 대한약침학회지
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• 제19권3호
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• pp.259-263
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• 2016

Lung cancer has a high mortality rate and is often diagnosed at the metastatic stage. Gefitinib is a targeted molecular therapeutic drug used to treat patients with non-small-cell lung cancer (NSCLC). Korean herbal medicines may also have therapeutic efficacy against lung cancer, reduce the side effects associated with chemotherapy, and improve patient quality of life (QOL). This case report describes the effects of a Korean herbal medicine regimen combined with gefitinib in a patient with NSCLC and bone metastasis. The Korean herbal medicine regimen included woohwanggeosa-dan, hwanggibujeong-dan and geonchilgyebok-jeong. The computed tomography (CT) findings showed that following combination treatment, the size of the tumor was markedly decreased without serious adverse events. Moreover, the Eastern Cooperative Oncology Group (ECOG) performance status was improved and cancer-related pain was decreased. These results suggest that a combination of Korean herbal medicines and gefitinib may be an effective therapeutic option for patients with advanced NSCLC and bone metastasis. Further studies are needed to examine the mechanism and the clinical efficacy of Korean herbal medicines against NSCLC.

• Tuberculosis and Respiratory Diseases
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• 제48권4호
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• pp.420-427
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• 2000

연구배경 : 결핵치료중 단독 백혈구감소증은 비교척 드물게 발생하지만 치료면에서 임상적으로 중요한 의미를 가진다. 불필요하게 약제를 변경하면 치료기간이 길어지고, 이로 인하여 치료에 대한 순응도가 낮아지고 완치율이 감소할 수 있기 때문이다. 그러나 항결핵요법 중에 발생하는 백혈구감소증에 대한 적절한 치료지침이 없는 실정이다. 따라서 저자들은 결핵치료 중 발생한 경 중등중 백혈구감소증의 추이를 관찰하고, 같은 약제를 계속 사용할 수 있는지를 알아보기 위하여 본 연구를 수행하였다. 방 법 : 1997년 1월부터 1999년 8월사이에 단기 항결핵요법을 시행한 환자중에서 치료중 경 중둥증의 단독 백혈구감소증이 발생하였으나 지속적으로 같은 약제를 투여한 36명의 환자중, 추적검사에서 탈락된 1명을 제외한 35명(25명은 전향적, 10명은 후향적 방법)을 대상으로 하였다. 백혈구감소증을 유발할 수 있는 다른 조건이 있는 환자는 연구대상에서 제외하였다. '경 중동증의 단독 백혈구감소증'은 백혈구 수가 $2,000-3,499/mm^3$ 사이이고, 다른 혈액학적 이상이 없는 경우로 임의로 정의하였다. 전향적 연구는 치료 중 경 중등증의 백혈구감소증이 발생하였을 때 같은 약제를 지속적으로 사용하면서 CBC를 3-7일 간격으로 검사하였고, 빽혈구수가 $2,000/mm^3$ 미만으로 감소하거나 감염성 합병증이 발생하는 경우에는 약제를 변경하기로 하였다. 결 과 : 1) 35명 모두 같은 약제로 지속적으로 치료하면서 백혈구수가 $2,000/mm^3$미만으로 감소하거나 다른 합병증없이 치료를 종료하였다. 2) 치료 시작부터 백혈구 감소증이 처음 발견될 시점까지 기간은 평균 $64{\pm}65$일이었다. 3) 치료 전 평균 백혈구수는 $5,021{\pm}1,605/mm^3$, 최저치는 $2,911{\pm}395/mm^3$ 이었으며 치료종료 후 회복되었다($4,248{\pm}1,270/mm^3$, p<0.05). 4) 백혈구감소의 주된 원인은 중성구의 감소이었다($3,319{\pm}1,747$ vs. $1,485{\pm}396/mm^3$, p<0.05). 결 론 : 1차약제 단기 항결핵치료 중 경 중둥증($2,000-3,499/mm^3$)의 단독 백혈구감소증이 발생하였을 때, 치료약제 변경없이 백혈구수를 추적검사하면서 지속적으로 같은 약제를 사용하여도 무사히 치료를 종료할 수 있을 것으로 사료되었다.

• Tuberculosis and Respiratory Diseases
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• 제60권1호
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• pp.38-43
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• 2006

연구배경 : RMP과 PZA 병합 잠복결핵치료는 2개월만 치료하여도 된다는 장점이 있으나 중증 간독성이 보고됨에 따라 미국흉부학회 지침에서 특별한 사유가 있지 않는 한 잠복결핵의 치료에 사용하지 말도록 권고하였다. 그러나 한국인에서도 RMP/PZA 병합요법이 높은 빈도로 중증 간독성을 유발하는지에 대한 보고가 아직은 없어서 이를 확인하고자 본 연구를 시행하였다. 방 법 : 1990년 1월부터 2003년 12월까지 서울아산병원에서 INH 단독내성(256명)으로 진단된 결핵환자 중 표준치료를 시행하다가 INH 내성 확인 후 INH를 제외하고 RMP/PZA가 포함된 처방으로 변경한 64명(RZ+군)을 대상으로 의무기록을 후향적으로 분석하였다. 같은 기간에 결핵진단 후 INH/RMP/PZA를 포함한 표준치료를 시행한 146명을 무작위로 추출하여(HRZ+군) 대조군으로 하였다. 양 군에서 나이, 성별, 기저 간질환 유무, 해당 약제의 치료기간 및 간독성발생률을 조사하였다. 결 과 : RZ+군 64명의 평균나이는 $50.2{\pm}16.2$세, 남녀비는 36:28이었다. HIV 검사를 시행한 20명 모두 음성이었다. RZ+군과 HRZ+군에서 각각 기저 간질환의 빈도는 10.9%(7/64), 4.1%(6/146)으로 차이가 없었다. RZ+군과 HRZ+군에서 각각 RMP/PZA, INH/RMP/PZA를 포함한 치료를 시행한 기간은 각각 $5.5{\pm}4.8$, $2.7{\pm}2.3$ 개월로 RZ+군에서 의미있게 길었음에도 불구하고(p<0.05) 기저간질환이 없는 환자 57명과 140명 중 각각 2명(3.5%, 모두 경증), 10명(7.1%, 모두 경증)에서 간독성이 발생하여 양 군간에 차이가 없었다. RZ+군 중 기저간질환이 있었던 5명 모두 간독성은 발생하지 않았다. 결 론 : 한국인에서 INH 를 제외하고 RMP과 PZA가 포함된 병합치료를 시행한 군에서 간독성의 발생률은 3.5%로 모두 경증이었고 4제 표준치료요법에 비하여 높지 않았다. 향후 RMP/PZA 병합요법을 우리나라에서 잠복결핵의 치료요법으로 사용하기 위해서는 많은 수의 환자를 대상으로 한 전향적인 연구가 필요할 것으로 생각된다.

• Tuberculosis and Respiratory Diseases
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• 제39권2호
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• pp.167-171
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• 1992

PTA, CS, PAS, SM (KM 또는 TUM) 4제 요법의 임상효과를 알고자 지난 5년동안 국립 공주 병원에 입원하였던 도말양성 환자중 추적 가능한 112명을 대상으로 한 조사에서 다음과 같은 결과를 얻었다. 균 도말검사상 64%가 음전을 나타내었고 그 시기는 85%가 3개월 이내에 이루어졌다. 방사선 소견은 반응이 없는 경우가 약 반 정도이었으며, 세균학적 검사를 함께 고려하여 판단할 때 62% 정도만이 양호한 결과를 나타내었다. 양호한 결과는 병력이 짧고 내성정도가 적을수록 좋았다. 그리고 병력이 오래된 환자의 재치료 처방은 적어도 3제 이상의 감수성을 가진 약제를 선택해야 되며, 두가지 이하의 감수성이 있는 경우는 INH 단독 요법등의 고려가 필요할 것으로 사료된다.