scholarly journals Efficacy and safety of low-dose everolimus treatment for renal angiomyolipoma associated with tuberous sclerosis complex

2020 ◽  
Author(s):  
Takashi Hatano ◽  
Katsuhisa Endo ◽  
Mayumi Tamari
Keyword(s):  
Body Weight ◽  
Adverse Events ◽  
Renal Dysfunction ◽  
Tuberous Sclerosis Complex ◽  
Dose Group ◽  
Low Dose ◽  
Reduction Rate ◽  
Renal Angiomyolipoma ◽  
Efficacy And Safety ◽  
Conventional Dose

Abstract Background: Tuberous sclerosis complex (TSC) is a rare disease, with an autosomal dominant mode of inheritance, that results in systemic hamartoma. Renal angiomyolipoma (AML) is observed in 50-80% of TSC patients. Everolimus is recommended as an initial treatment for TSC-associated AML; however, few studies have investigated the efficacy and safety of low-dose everolimus therapy. In the present study, we evaluated the safety and efficacy of low-dose everolimus treatment in patients with TSC-associated AML with renal dysfunction or low body weight.Methods: From January 2014 through December 2018, a total of 50 adult patients underwent everolimus treatment for AML associated with TSC. For patients with renal dysfunction (serum creatinine level ≥1.5 mg/dl) or low body weight (body weight <35 kg), 5 mg of everolimus was administered daily (low-dose group). For patients without renal dysfunction or low body weight, 10 mg of everolimus was administered daily (conventional-dose group). The treatment effects and adverse events (graded according to the Common Terminology Criteria for Adverse Events v5.0–JCOG) were compared between the two groups. Results: There were 20 patients in the low-dose group, and 30 in the conventional-dose group. The average reduction rate of the AML volume in the low-dose group was 52%, whereas it was 60% in the conventional-dose group. No significant differences were found in the average reduction rate between the groups (P=0.24). The average blood everolimus trough levels were 7.7±3.1 ng/mL in the low-dose group and 12.2±5.7 ng/mL in the conventional-dose group. The level was significantly higher in the conventional-dose group than in the low-dose group (P=0.004). The incidences of stomatitis and irregular menstruation were significantly lower in the low-dose group than in the conventional-dose group (P=0.009, P=0.045, respectively).Conclusions: The present study demonstrates that low-dose everolimus treatment is safe and effective for TSC-associated AML. This treatment was well tolerated and adverse events were mild in all cases. Based on our results, low-dose everolimus can be considered a treatment option for patients with TSC-associated AML, especially for those who have renal dysfunction or low body weight.

scholarly journals Low-Dose Everolimus Maintenance Therapy for Renal Angiomyolipoma Associated With Tuberous Sclerosis Complex

2021 ◽  
Vol 8 ◽  
Author(s):  
Cong Luo ◽  
Wen-Rui Ye ◽  
Xiong-Bin Zu ◽  
Min-Feng Chen ◽  
Lin Qi ◽  
...  
Keyword(s):  
Adverse Events ◽  
Maintenance Therapy ◽  
Tuberous Sclerosis ◽  
Induction Therapy ◽  
Tuberous Sclerosis Complex ◽  
Low Dose ◽  
Standard Dose ◽  
Gene Mutations ◽  
Renal Angiomyolipoma ◽  
Significance Level

Objective: To assess the safety and efficacy of low-dose everolimus maintenance therapy for tuberous sclerosis complex-related renal angiomyolipoma (TSC-RAML) patients that had previously undergone standard-dose treatment for a minimum of 6 months.Materials and Methods: In total, 24 patients with a definitive TSC diagnosis were enrolled from April 2018 – April 2019 at Xiangya Hospital, Central South University. All patients underwent low-dose everolimus maintenance therapy following standard-dose everolimus induction therapy for a minimum of 6 months. Patients additionally underwent TSC1/TSC2 genetic testing, And they were followed-up at 3, 6, 12, 18, and 24 months. The Response Evaluation Criteria in Solid Tumors (RECIST, version 1.1) criteria were used to monitor patient RAML responses, while adverse events (AEs) were assessed as per the National Cancer Institute Common Terminology Criteria for Adverse Events (CTCAE, version 4.0). P &lt; 0.05 was the significance level for all analyses, which were performed using SPSS 19.0.Results: TSC1/TSC2 gene mutations were present in all 24 patients, all of whom achieved a significant reduction in TSC-RAML volume within the initial 6-month induction therapy period, and exhibited volume stabilization during the low-dose maintenance therapy treatment period without any instances of TSC-RAML regrowth. Adverse events (AEs) were significantly less severe and less frequent over the course of maintenance therapy relative to standard therapy.Conclusions: Low-dose everolimus maintenance therapy represents an effective approach to achieving TSC-RAML control following a minimum of 6 months of full-dose induction therapy, and may be associated with decreases in everolimus-related AE frequency and severity.

scholarly journals Mutational analysis of renal angiomyolipoma associated with tuberous sclerosis complex and the outcome of short-term everolimus therapy

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Jianxin Ni ◽  
Fengqi Yan ◽  
Weijun Qin ◽  
Lei Yu ◽  
Geng Zhang ◽  
...  
Keyword(s):  
Genetic Testing ◽  
Adverse Events ◽  
Tuberous Sclerosis ◽  
Tuberous Sclerosis Complex ◽  
Gene Mutations ◽  
Chinese Patients ◽  
Term Therapy ◽  
Renal Angiomyolipoma ◽  
Efficacy And Safety ◽  
Short Term

Abstract To identify clinical characteristics and mutation spectra in Chinese patients with renal angiomyolipoma (AML) associated with the tuberous sclerosis complex (TSC, TSC-AML), examined the efficacy and safety of short-term everolimus therapy (12 weeks). We analyzed the frequency distribution of each TSC-related clinical feature and investigated gene mutations by genetic testing. Some subjects received everolimus for 12 weeks at a dose of 10 mg/day, and the efficacy and safety of short-term everolimus therapy were examined. Finally, 82 TSC-AML patients were enrolled for analysis in this study. Of the 47 patients who underwent genetic testing, 22 patients (46.81%) had at least one detectable mutation in the TSC1 or TSC2 gene: 7 were TSC1 gene mutations, 13 were TSC2 gene mutations, and 2 were found in both TSC1 and TSC2. Everolimus treatment had a statistically significant effect on the renal AML volume reduction during follow-up (P < 0.05), and the mean reduction rate of volume for all cases was 56.47 ± 23.32% over 12 weeks. However, 7 patients (7/25; 28.00%) experienced an increase in renal AML tumor volume within 12 weeks after discontinuation of the everolimus treatment. Although most patients (27/30, 90.00%) experienced some adverse events during the treatment period, all such events were mild, and no patients discontinued or needed dose reduction because of adverse events. Overall, in this study, the mutation rate of TSC-AML patients is much lower than other reports. Short-term everolimus treatment for TSC-AML is effective and safe, but the stability is much lower than long-term therapy.

The dose-optimisation of lenvatinb for patients with unresectable hepatocellular carcinoma in clinical practice: A retrospective analysis of real-world evidence in China.

2021 ◽  
Vol 39 (3_suppl) ◽  
pp. 280-280
Author(s):  
Lan Zhang ◽  
Yanhong Wang ◽  
Ningling Ge ◽  
Yu-Hong Gan ◽  
ZhengGang Ren ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Body Weight ◽  
Adverse Events ◽  
Dose Reduction ◽  
Dose Escalation ◽  
Dose Group ◽  
Response Rate ◽  
Standard Dose ◽  
Reduction Rate ◽  
Starting Dose

280 Background: Lenvatinib has become available as first-line therapy in patients with unresectable hepatocellular carcinoma (u-HCC). Although 8mg or 12mg/day is the standard starting dose according to weight, the high rate of adverse events (AEs) leading to dose reduction often limits its application. Various dosing schedules are used clinically to alleviate toxicities in practice. This study evaluated the safety and antitumor activity of two dosing strategies for lenvatinib administrations. Methods: Patients administered lenvatinib for u-HCC between April 2018 and July 2019 were enrolled. The dose-escalation strategy was conducted as follow, starting dose 4mg/day orally with biweekly escalation (As common AE always occurred within 2 weeks after administered), per 4 mg increment, to 8 or 12mg finally per body weight if no significant drug-related (no more than G2) adverse events occurred. Patients with a standard-dose strategy (8/12mg/day orally per body weight) were also included for comparison.Objective response rate(ORR) and progression-free survival (PFS) were assessed according to RECIST1.1 criteria. Dose-reduction rate was recorded and treatment-related adverse events (TRAE) was evaluated according to the CTCAE 5.0. Results: Totally 56 patients were included (37 in dose-escalation group and 19 in standard-dose group). The mean weight was 64.79±1.66 kg in dose-escalation group and 58.76±2.45 kg in standard-dose group, BCLC stage C proportion was 51.4% and 63.2%, Child-pugh B proportion was 16.2% and 5.3% respectively. Baseline demographic parameters were comparable between two groups (P>0.05). There was no significant difference in response rate (32.43% vs 42.1%, P=0.335), disease control rate (86.4% vs 84.2%, P=0.686) and PFS (P=0.631). The proportion of patients who reached the full dose (per weight) was also similar (48.6% vs 63.2%, p=0.399). Dose reduction rate was significantly higher in standard-dose group than dose-escalation group (36.8%vs 13.5%,p=0.044). Although, no difference in grade 3/4 adverse events was found between two groups (P=0.083), patients in standard-dose group(36.8%,7/19) have a higher incidence trend of G3/4 AEs than those of dose-escalation group(16.2%,6/37). Conclusions: The dose-escalation strategy may be an alternative approach to prolong lenvatinib treatment period, with comparable efficacy and more tolerance. More data are needed to confirm the long-term efficacy and safety of the dose-escalation strategy.

Comparative Analysis on Low- and Standard-Dose Regimes of Alteplase Thrombolytic Therapy for Acute Ischemic Stroke: Efficacy and Safety

2017 ◽  
Vol 79 (1-2) ◽  
pp. 68-73 ◽  
Author(s):  
Guangjian Zhao ◽  
Tingfen Huang ◽  
Mei Zheng ◽  
Yansen Cui ◽  
Yunyong Liu ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Thrombolytic Therapy ◽  
Acute Ischemic Stroke ◽  
Dose Group ◽  
Low Dose ◽  
Standard Dose ◽  
Efficacy And Safety ◽  
Significant Difference ◽  
Symptomatic Intracranial Hemorrhage ◽  
Intravenous Alteplase

Objective: This study analyzed the efficacy and safety of low-dose and standard-dose alteplase intravenous thrombolytic therapy for acute ischemic stroke (AIS). Methods: Patients with AIS who underwent intravenous alteplase thrombolysis from July 2012 to December 2016 were retrospectively analyzed and correspondingly divided into low-dose (0.6–0.89 mg/kg) group and standard-dose group (0.9 mg/kg) according to alteplase dosage. The clinical outcome was evaluated by modified Rankin Scale (mRS) at 90 days after onset. The safety index was the mortality at 90 days after onset and the incidence of symptomatic intracranial hemorrhage (SICH) within 7 days. Results: A total of 1,486 patients were included (1,115 cases in low-dose group and 371 cases in standard-dose group). There were no significant differences in baseline data between the 2 groups. As mRS, good outcome rate as well as mortality rate in both groups had no significant difference (36.1 vs. 37.6%; χ2 = 10.882, p = 0.890; 5.5 vs. 7.3%; χ2 = 2.163, p = 0.076), but the incidence of SICH in low-dose group was significantly lower than that of the standard-dose group (2.2 vs. 5.9%; χ2 = 3.157, p = 0.001). Conclusion: The efficacy of low-dose alteplase intravenous thrombolytic therapy for AIS was equivalent to the standard-dose regimen but with higher safety.

scholarly journals COMPARE: prospective, randomized, non-inferiority trial of high- vs. low-dose paclitaxel drug-coated balloons for femoropopliteal interventions

2020 ◽  
Vol 41 (27) ◽  
pp. 2541-2552 ◽  
Author(s):  
Sabine Steiner ◽  
Andrej Schmidt ◽  
Thomas Zeller ◽  
Gunnar Tepe ◽  
Marcus Thieme ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Lower Bound ◽  
Adverse Events ◽  
Low Dose ◽  
Primary Patency ◽  
High Dose ◽  
Primary Efficacy ◽  
Efficacy And Safety ◽  
Wide Range ◽  
Major Adverse Events

Abstract Aims Drug-coated balloons (DCBs) for femoropopliteal interventions have not been tested against each other. We aimed to directly compare efficacy and safety of a high-dose (In.Pact™) vs. low-dose (Ranger™) DCB with nominal paclitaxel densities of 3.5 vs. 2.0 μg/mm2. Methods and results Within a prospective, multicentre, non-inferiority, clinical trial 414 patients with symptomatic femoropopliteal lesions (Rutherford classification 2–4) were randomly assigned in a 1:1 ratio to endovascular treatment with either high- or low-dose DCB after stratification for lesion length. Primary efficacy and safety endpoints comprised primary patency and freedom from major adverse events (i.e. device and procedure-related deaths through 1 month, major amputations, and clinically driven target lesion revascularization through 12 months). We set a non-inferiority margin of −10% at 12 months. Total occlusions were observed frequently (&gt;40%) and provisional stenting was performed in every fourth intervention. Non-inferiority was determined for both primary efficacy and safety endpoints at 12 months. Primary patency was 81.5% in the high-dose and 83.0% in low-dose DCB group {difference: 1.5% [lower bound of the 90% two-sided confidence interval (CI) −5.2%]; Pnon-inferiority &lt; 0.01}. Freedom from major adverse events was determined in 92.6% in high-dose and in 91.0% in low-dose DCB group [difference −1.6% (lower bound of the 90% two-sided CI −6.5%); Pnon-inferiority &lt; 0.01]. Overall death rate was low (2.0%) and no major amputation occurred. Conclusion Two DCBs with different coating characteristics exhibited comparable results with excellent effectiveness and safety through 12 months for femoropopliteal interventions including a wide range of lesion lengths. Clinical trial registration The trial is registered with ClinicalTrials.gov (NCT02701543).

Long Term Efficacy and Safety Results and Analysis of Dose Correlations from the Phase I/II Peginvera Study of Ropeginterferon Alfa-2b, a Novel IFNa-2b, in Polycythemia Vera Patient

Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 4056-4056
Author(s):  
Heinz Gisslinger ◽  
Veronika Buxhofer-Ausch ◽  
Josef Thaler ◽  
Ernst Schlögl ◽  
Gunther Gastl ◽  
...  
Keyword(s):  
Research Funding ◽  
Dose Group ◽  
Low Dose ◽  
Term Treatment ◽  
High Dose ◽  
Individual Response ◽  
Molecular Response ◽  
Efficacy And Safety ◽  
Long Term Treatment

Abstract Background Ropeginterferon alfa-2b (AOP2014/P1101) is a novel long-acting pegylated IFN-alpha-2b, composed of mainly one isoform, resulting in longer half-life and exposure time. Reduced dosing frequencies, better tolerability, improved compliance and more favorable long-term treatment outcomes in patients with polycythemia vera (PV) are expected. The drug has Orphan designation by EMA and FDA and is currently in the phase III stage of development. Study design Efficacy and safety data are being collected in the follow-up extension stage of the study (collecting the data of both Phase I and Phase II portions of the study), after the maximum tolerated dose (MTD) of ropeginterferon alfa-2b, administered subcutaneously every 14 to 28 days, has been defined earlier. Patients with confirmed diagnosis of PV, age ≥18 years, both naïve and cytoreductively pre-treated were eligible. After establishing the MTD, an extended cohort of 25 additional patients has been planned to be recruited. Complete hematological response (CR) is defined by hematocrit (Hct)<45%, platelet count≤400*109/L, WBC count≤10*109/L, normal spleen size by sonography, and absence of thromboembolic events. Partial response (PR) is defined as Hct<45% without phlebotomy but with persistent splenomegaly or elevated (>400*109/L) platelet count, or reduction of phlebotomy requirements by at least 50%. Complete molecular response has been defined as reduction of any molecular abnormality to undetectable levels; partial molecular response as: reduction ≥ 50% in patients with < 50% mutant allele burden, or a reduction ≥ 25% in patients with > 50% mutant allele burden. The present analysis was focused on long-term tolerability and safety in correlation with the dose of ropeginterferon alfa-2b in PV. Results Data on treatment as by July, 24, 2015, are covered by the current analysis. Baseline characteristics of the study cohort during short-term treatment were already presented earlier (Gisslinger et al, ASH 2013). The full analysis set and efficacy set were composed of 51 and 47 patients, respectively. Currently, the median reported treatment duration is 138 weeks, 33 patients completed their follow up for two years, 19 for three years. Starting with the week 10, Hct-level, platelet- and WBC-counts could be constantly maintained within normal range in the majority of patients. In a group of patients with the mean administered dose of <300 µg ("low dose", n=36), CR as best individual response was achieved in 20 (56%) patients, and PR in 14 (39%) compared to the CR and PR in the high dose (>300 µg, n=11) group of 8 (73%) and 3 (27%) respectively. However, no statistical significance can be observed if correlation between the dose and response status was analyzed. 30 patients are still being treated in the study. Similarly, no association between the dose and occurrence of adverse events in the study could be observed. Complete molecular response as best individual response was observed more frequently in the high dose group 4 (36%) compared to 8 (23%) in the low dose group, while partial molecular responses were equally frequent in both dose groups (in 6/55% and 20/57%, respectively). 21 patients discontinued the study, 18 being treated with AOP2014 doses corresponding to low, and 3 to the high dose arms, corresponding to the drop-out rate of 50% and 27% in the respective arms. Interestingly, all discontinuations in the high dose group occurred within the first year of treatment (at weeks 16, 18 and 32), while the drop-outs in the low dose group (6 patients, 33%) discontinued the study after completion of their first year of treatment. Conclusions Efficacy and safety profile remain in line with expectations from other (pegylated) interferons. Overall response rate of >80% with cumulative CRs in 45-50%, accompanied by phlebotomy independence, normalization of hematological parameters and spleen size reduction in majority of patients have been observed. Significant and sustained JAK2 allelic burden decrease, starting from week 28 of treatment, was seen. No significant difference between the two mean dose levels regarding response rates or adverse events even during long-term treatment and observation could be observed. These finding are to be further verified in a larger prospective setting. Disclosures Gisslinger: Celgene: Consultancy, Honoraria, Research Funding, Speakers Bureau; Novartis: Honoraria, Research Funding, Speakers Bureau; AOP ORPHAN: Consultancy, Honoraria, Research Funding, Speakers Bureau; Geron: Consultancy; Sanofi Aventis: Consultancy; Janssen Cilag: Honoraria, Speakers Bureau. Buxhofer-Ausch:AOP Orphan: Research Funding. Thaler:AOP Orphan: Research Funding. Schlögl:AOP Orphan: Research Funding. Gastl:Novartis: Membership on an entity's Board of Directors or advisory committees, Research Funding; AOP Orphan: Research Funding. Ban:AOP Orphan: Research Funding. Egle:AOP Orphan: Research Funding. Melchardt:AOP Orphan: Research Funding. Burgstaller:AOP Orphan Pharmaceuticals: Honoraria, Research Funding; Novartis: Honoraria; Mundipharma: Honoraria; Celgene: Consultancy, Honoraria, Research Funding. Willenbacher:COMET Center ONCOTYROL: Research Funding; AOP Orphan: Research Funding. Kralovics:AOP Orphan: Research Funding; Qiagen: Membership on an entity's Board of Directors or advisory committees. Zörer:AOP Orphan: Employment. Ammann-Mwathi:AOP Orphan: Employment. Kadlecova:AOP Orphan: Consultancy. Zagrijtschuk:AOP Orphan: Employment. Klade:AOP Orphan: Employment. Greil:Pfizer: Honoraria, Research Funding; GSK: Research Funding; Boehringer-Ingelheim: Honoraria; AOP Orphan: Research Funding; Celgene: Consultancy; Janssen-Cilag: Honoraria; Genentech: Honoraria, Research Funding; Novartis: Honoraria; Astra-Zeneca: Honoraria; Amgen: Honoraria, Research Funding; Ratiopharm: Research Funding; Sanofi Aventis: Honoraria; Merck: Honoraria; Mundipharma: Honoraria, Research Funding; Eisai: Honoraria; Cephalon: Consultancy, Honoraria, Research Funding; Bristol-Myers-Squibb: Consultancy, Honoraria; Roche, Celgene: Honoraria, Research Funding.

Low-dose cisplatin administration through the superficial temporal artery combined with definitive radiotherapy for maxillary sinus squamous cell carcinoma.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e18562-e18562
Author(s):  
Tatsuo Masubuchi ◽  
Yosuke Kitani ◽  
Chihiro Fushimi ◽  
Daisuke Kawakita ◽  
Hideaki Takahashi ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Adverse Events ◽  
Cell Carcinoma ◽  
Low Dose ◽  
Superficial Temporal Artery ◽  
Progression Free Survival ◽  
Temporal Artery ◽  
Efficacy And Safety ◽  
Free Survival ◽  
Grade 3

e18562 Background: Although patients with locoregional advanced maxillary sinus squamous cell carcinoma (MSSCC) are often treated with surgery followed by postoperative radiotherapy (RT), the cosmetic and functional outcomes are unsatisfactory. Moreover, the efficacy and safety of intra-arterial chemoradiotherapy are controversial. Methods: In this study, we investigated the efficacy and safety of low-dose cisplatin administration through the superficial temporal artery (STA) combined with definitive RT in patients with MSSCC. Between January 2009 and December 2018, 57 patients were administered weekly intra-arterial infusions of cisplatin (30–50 mg/m2/5h) through the STA with simultaneous intravenous infusions of sodium thiosulfate. Overall response rate (ORR), local progression-free survival (LFS), maxillectomy-free survival (MFS), progression-free survival (PFS), overall survival (OS), and safety were evaluated retrospectively. The impact of clinical factors on survival was investigated using the Cox proportional hazard models. Results: The median follow-up time was 44 months (range, 10–80 months). There were 4, 26, 23, and 4 patients with cT2, cT3, cT4a, and cT4b, respectively. All patients completed the planned treatment except for one patient who discontinued owing to facial palsy. The ORR was 98% with 51 and 5 patients having complete and partial responses, respectively. The 3-year LFS, PFS, and OS were 74%, 63%, and 81%, respectively for all patients and 100%, 81%, and 94%, respectively for 22 patients received 70 Gy irradiation. Notably, the 3-year MFS was 95% for all patients and 100% in patients received 70 Gy RT. The most common grade 3 or more toxic event was oral mucositis (22.8%). Additionally, 4 (7.0%) patients had catheter-related infections. Late grade 3 or more adverse events included optic nerve disorder (8.8%), osteonecrosis (7.0%), encephalopathy (1.8%), and increased creatinine levels (1.8%). Salvage surgery including hard palate resection and orbital exenteration were performed in 2 and 1 patients, respectively. No clinical factor was correlated with survival outcomes in our study cohort. Conclusions: Low-dose cisplatin through STA combined with RT, especially 70 Gy RT, was associated with promising tumor response, high organ preservation rate, and tolerable adverse events in MSSCC patients. Further prospective studies are warranted to compare these outcomes with primary surgery.

scholarly journals Efficacy and Safety of Daikenchuto for Constipation and Dose-Dependent Differences in Clinical Effects

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Tatsuya Hirose ◽  
Yasutaka Shinoda ◽  
Ayaka Kuroda ◽  
Aya Yoshida ◽  
Machiko Mitsuoka ◽  
...  
Keyword(s):  
Dose Group ◽  
Low Dose ◽  
Clinical Laboratory ◽  
Laboratory Data ◽  
High Dose ◽  
Clinical Effects ◽  
Efficacy And Safety ◽  
Watery Stool ◽  
Group 4 ◽  
Dose Dependent

Background. Daikenchuto (DKT) is a Kampo medicine used for the treatment of constipation. In this study, we evaluated the effectiveness of DKT against constipation. Patients and Methods. Thirty-three patients administered DKT for constipation were selected and divided into low-dose (7.5 g DKT; n=22) and high-dose (15 g DKT; n=11) groups. We retrospectively evaluated weekly defaecation frequency, side effects, and clinical laboratory data. Results. Median defaecation frequencies after DKT administration (5, 5.5, 5, and 8 for the first, second, third, and fourth weeks, resp.) were significantly higher than that before DKT administration (2) in all 33 cases (P<0.01). One case (3%) of watery stool, one case of loose stools (3%), and no cases of abdominal pain (0%) were observed. Median defaecation frequencies in the high-dose group (7 and 9) were significantly higher than those in the low-dose group (4 and 3) in the first (P=0.0133) and second (P=0.0101) weeks, respectively. There was no significant change in clinical laboratory values. Conclusion. We suggest that DKT increases defaecation frequency and is safe for treating constipation.

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