Phase II randomized, double-blinded comparison of a single high dose (5×108 TCID50) of modified vaccinia Ankara compared to a standard dose (1×108 TCID50) in healthy vaccinia-naïve individuals

ABSTRACTBackgroundHigh doses of rifampicin may help tuberculous meningitis (TBM) patients to survive. Pharmacokinetic-pharmacodynamic evaluations suggested that rifampicin doses higher than 13 mg/kg intravenously or 20 mg/kg orally (as previously studied) are warranted to maximize treatment response.MethodsIn a double-blinded, randomised, placebo-controlled phase II trial, we assigned 60 adult TBM patients in Bandung, Indonesia, to standard 450 mg, 900 mg or 1350 mg (10, 20 and 30 mg/kg) oral rifampicin combined with other TB drugs for 30 days. Endpoints included pharmacokinetic measures, adverse events and survival.ResultsA double and triple dose of oral rifampicin led to three and five-fold higher geometric mean total exposures in plasma in the critical early days (2±1) of treatment (AUC0-24h: 53·5 mg.h/L vs 170·6 mg.h/L vs. 293·5 mg.h/L, p<0·001), with proportional increases in CSF concentrations and without an increase in the incidence of grade 3/4 adverse events. Six-month mortality was 7/20 (35%, 9/20 (45%) and 3/20 (15%) in the 10, 20 and 30 mg/kg groups, respectively (p=0·12).ConclusionsTripling the standard dose caused a large increase in rifampicin exposure in plasma and CSF and was safe. Survival benefit with this dose should now be evaluated in a larger phase III clinical trial.

Download Full-text

Double-Blind, Randomized, Placebo-Controlled Phase II Dose-Finding Study To Evaluate High-Dose Rifampin for Tuberculous Meningitis

Antimicrobial Agents and Chemotherapy ◽

10.1128/aac.01014-18 ◽

2018 ◽

Vol 62 (12) ◽

Cited By ~ 19

Author(s):

S. Dian ◽

V. Yunivita ◽

A. R. Ganiem ◽

T. Pramaesya ◽

L. Chaidir ◽

...

Keyword(s):

Adverse Events ◽

Phase Ii ◽

Tuberculous Meningitis ◽

Standard Dose ◽

Geometric Mean ◽

Phase Iii ◽

High Dose ◽

Treatment Area ◽

Double Blind ◽

Time Curve

ABSTRACT High doses of rifampin may help patients with tuberculous meningitis (TBM) to survive. Pharmacokinetic pharmacodynamic evaluations suggested that rifampin doses higher than 13 mg/kg given intravenously or 20 mg/kg given orally (as previously studied) are warranted to maximize treatment response. In a double-blind, randomized, placebo-controlled phase II trial, we assigned 60 adult TBM patients in Bandung, Indonesia, to standard 450 mg, 900 mg, or 1,350 mg (10, 20, and 30 mg/kg) oral rifampin combined with other TB drugs for 30 days. The endpoints included pharmacokinetic measures, adverse events, and survival. A double and triple dose of oral rifampin led to 3- and 5-fold higher geometric mean total exposures in plasma in the critical early days (2 ± 1) of treatment (area under the concentration-time curve from 0 to 24 h [AUC0–24], 53.5 mg · h/liter versus 170.6 mg · h/liter and 293.5 mg · h/liter, respectively; P < 0.001), with proportional increases in cerebrospinal fluid (CSF) concentrations and without an increase in the incidence of grade 3 or 4 adverse events. The 6-month mortality was 7/20 (35%), 9/20 (45%), and 3/20 (15%) in the 10-, 20-, and 30-mg/kg groups, respectively (P = 0.12). A tripling of the standard dose caused a large increase in rifampin exposure in plasma and CSF and was safe. The survival benefit with this dose should now be evaluated in a larger phase III clinical trial. (This study has been registered at ClinicalTrials.gov under identifier NCT02169882.)

Download Full-text

Phase II evaluation of fractionated low and single high dose cisplatin in various tumors

Journal of Cancer Research and Clinical Oncology ◽

10.1007/bf00395492 ◽

1984 ◽

Vol 107 (1) ◽

pp. 57-60 ◽

Cited By ~ 14

Author(s):

R. B. Schilcher ◽

M. Wessels ◽

N. Niederle ◽

S. Seeber ◽

C. G. Schmidt

Keyword(s):

Phase Ii ◽

High Dose ◽

Single High Dose

Download Full-text

Imatinib 800 mg: Preliminary Results of a Phase II Trial of the GIMEMA CML Working Party in Intermediate Sokal Risk Patients and Status-of-the-Art of an Ongoing Multinational, Prospective Randomized Trial of Imatinib Standard Dose (400 mg Daily) vs High Dose (800 mg Daily) in High Sokal Risk Patients.

Blood ◽

10.1182/blood.v106.11.1098.1098 ◽

2005 ◽

Vol 106 (11) ◽

pp. 1098-1098

Author(s):

Gianantonio Rosti ◽

Giovanni Martinelli ◽

Fausto Castagnetti ◽

Nicoletta Testoni ◽

Giorgina Specchia ◽

...

Keyword(s):

High Risk ◽

Randomized Trial ◽

Phase Ii ◽

Response Rate ◽

Phase Ii Trial ◽

Standard Dose ◽

Phase Iii ◽

High Dose ◽

Molecular Response ◽

Risk Patients

Abstract The conventional treatment of chronic myeloid leukemia (CML) in early chronic phase (ECP) is imatinib 400 mg daily. The estimated rates of major (MCgR) and complete cytogenetic response (CCgR) at 42 months are 91% and 84%, respectively (IRIS Trial - F Guilhot, ASH 2004), with a survival free from accelerated and blastic phase of 84%. The rates of CCgR are significantly different according to Sokal score, being 91%, 84% and 69% for low, intermediate and high risk categories. Phase I and II trials of imatinib have clearly shown a dose-response effect; more importantly, a single center phase II trial of imatinib 800 mg in ECP showed significantly better results vs standard dose, in terms of CCgR (90% vs 74%) and of complete molecular response (28% vs 7% at 18 months) [H. Kantarjian et al, Blood 103 (8), 2004]. The GIMEMA (Gruppo Italiano Malattie Ematologiche dell’Adulto) CML WP is conducting a phase II trial of imatinib 800 mg in intermediate Sokal risk in ECP (trial CML/021). Overall, 89 pts (mean age 53 yrs) have been enrolled. Fourty-four patients completed 6 months of treatment: the complete hematological response rate is 100%; the MCgR and CCgR are 90% and 81%, respectively. The 6 months CCgR rate of this trial parallels the IRIS trial one in intermediate risk cases (84%), with a much shorter treatment period. The major molecular response rate at 6 months (RTQ-PCR as ratio BCR-ABL/ABL) is 56% (cut-off ≤ 0.12%) or 41% (cut-off ≤0.05%). The compliance to the treatment improved time by time, being 47% the patients receiving ≥ 80% of the scheduled dose between months 1–3 and 60% between months 4 - 6. A second project, exploring imatinib high dose, is reserved to high risk cases: a multinational working group, within the frame of Leukemianet CML WP, is conducting a phase III randomized trial (1:1) of imatinib 400 mg vs 800 mg in high Sokal risk in ECP. By July 31, 2005, 80 patients have been enrolled: GIMEMA CML WP (44 pts), Nordic Countries - Sweden, Denmark, Norway and Finland (25 pts), Turkey (10 pts) and Israel (1 pt).

Download Full-text

Imatinib High Dose (800 mg): Results of a Phase II Trial of the GIMEMA (Gruppo Italiano Malattie Ematologiche Dell’Adulto) CML Working Party in Intermediate Sokal Risk Patients and Status-of-the-Art of an Ongoing Multinational, Prospective Randomized Trial of Imatinib Standard Dose (400 mg Daily) vs High Dose (800 mg Daily) in High Sokal Risk Patients.

Blood ◽

10.1182/blood.v108.11.4776.4776 ◽

2006 ◽

Vol 108 (11) ◽

pp. 4776-4776

Author(s):

Gianantonio Rosti ◽

Fausto Castagnetti ◽

Marilina Amabile ◽

Nicoletta Testoni ◽

Angela Poerio ◽

...

Keyword(s):

Phase Ii ◽

Standard Dose ◽

Chronic Phase ◽

Working Party ◽

Great Majority ◽

Observation Time ◽

Phase Iii ◽

High Dose ◽

Molecular Response ◽

Risk Patients

Abstract Imatinib has become the treatment of choice for CML. The standard dose (SD) for CP CML is 400 mg daily: results are less favourable in pts at high or intermediate Sokal risk vs low Sokal risk ones. In intermediate Sokal risk, the IRIS trial (Hughes et al NEJM 349:15, 2003 ) reported at 12 mos a complete cytogenetic response (CCgR- 0% Ph-pos) rate of 67% and a major molecular response (MMolR) rate of 45%. Pre-clinical and clinical data suggest that high doses (HD - 800 mg daily) of ima may be more effective. The GIMEMA CML Working party is conducting a phase II, multi-istitutional prospective study (serial n. CML/021) to investigate the effects of imatinib HD in intermediate Sokal risk. Between Jan, 2004 and May, 2005, 25 centers enrolled 82 pts (80 eval); median age 56 yrs (26–79). Pts evaluable at 3,6 and 12 mos are 80, 77 and 65, respectively. The median observation time is 12 mos. At 3 and 6 mos, 83% and 97% of the pts reached a stable CHR. At 6 mos, 86% obtained a CCgR and 53% of CCgR pts a MMolR (Bcr-Abl/Abl × 100 ratio < 0.1%). At 12 mos, the CCgR rate was 90% and the MMolR rate was 57%. One patient progressed to accelerated/blastic phase. The compliance to HD treatment was good: at 3, 6 and 12 mos 55%, 52% and 52% of the pts received a median daily dose of imatinib > 600 mg. Non hematopoietic AEs accounted for the great majority of dose reductions. The results of this trial further indicate that imatinib HD induces higher and more rapid responses in intermediate Sokal risk CML pts in early chronic phase, being superior to the results obtained with SD (IRIS) and in the range of the MD Anderson results (Kantarjian et al Blood 2004 103:2873). A second project is reserved to high Sokal risk CML pts in early CP: a multinational group, within EuropeanLeukemianet CML WP, is conducting a phase III trial (1:1) of imatinib 400 mg vs 800 mg. By July 31, 2005, 141 patients have been enrolled: GIMEMA (88 pts), Nordic CML Study Group (Sweden, Denmark, Norway and Finland) (25 pts), Turkey (25 pts) and Israel (3 pt).

Download Full-text

Phase II-study of sequential high-dose-chemotherapy with paclitaxel, ifosfamide, carboplatin, etoposide( P-ICE) in patients with relapsed or refractory germ cell tumors (GCT).

Journal of Clinical Oncology ◽

10.1200/jco.2017.35.15_suppl.4552 ◽

2017 ◽

Vol 35 (15_suppl) ◽

pp. 4552-4552

Author(s):

Thomas Kegel ◽

Franziska Cygon ◽

Fabian Maximilian Meinert ◽

Khaled Hammad ◽

Frank Steinbach ◽

...

Keyword(s):

Phase Ii ◽

Standard Dose ◽

Germ Cell Tumors ◽

High Dose Chemotherapy ◽

High Dose ◽

Bone Marrow Toxicity ◽

Good Tolerability ◽

Term Outcome ◽

Long Term Outcome ◽

Ecog Ps

4552 Background: High-dose chemotherapy (HD-CTx) is an active option for salvage chemotherapy in patients (pts) with refractory or relapsed GCT. All previous trials with HD-CTx used one or two cycles of high dose chemotherapy (CTx) including 2 or a maximum of 3 drugs. Another potentially more active option is the application of four sequential HD-CTx cycles (Schmoll et al, JCO 2003). Methods: We conducted a phase II trial of 1(-2) cycle(s) induction CTx with standard dose P-ICE (Paclitaxel 135mg/m² d1, Ifosfamide 1500mg/m² d1-3, Carboplatin 150mg/m² d1-3, Etoposide 150mg/m² d1-3), followed by 4 sequential cycles of HD-P-ICE (Paclitaxel 200mg/m² d1, Ifosfamide 3300mg/m² d1-3, Carboplatin 330mg/m² d1-3, Etoposide 330mg/m² d1-3). Eligibility criteria: relapse or progression under one or more induction CTx, ECOG PS (0-1), Creatinine-clearance > 30ml/min, adaequate liver function, measurable tumor or at least marker-elevation. Results: 37 pts entered the trial and 33 are evaluable (4 pts never received HD-CTx due to lack of stem cells (3) or medical reasons (1)). Prior CTx:1 (N = 26), 2 (N = 4), 3 (N = 3); primary extragonadal: 6; seminoma/ non-seminoma 5/28; ECOG-PS: 0 (19), 1 (14). Response rate: CR/NED 17 (51.5%), CR/NED/PR-/SD- with marker normalization 21 (63.6%), PD 12 (36.4%). DFS of CR/NED: median 59 (8-105) months; RFS of all favourable responders 60 (8-105) months, PFS total 46 (2-105) months. OS for all pts. 51 (6-105) months, OS Favourable Responders: 65 (23 – 105), Nonfavourable Responders: 11 (6-27) months,. Toxicity was tolerable without treatment related death, with mainly grade 4 bone-marrow toxicity and grade 2 mucositis and/or diarrhea. Conclusions: Sequential HD-CTx with one cycle of SD-P-ICE and four cycles HD-CTx is feasible with acceptable toxicity and favourable efficacy. Sequential HD-CTx using the four most active drugs might be a potentially option for this pts-population due to good tolerability, applicability and interesting long-term outcome. Comparison of the standard approach with 1 to 3 sequential high dose cycles of Carboplatin/Etoposide is ongoing (TIGER-Trial). Clinical trial information: EUDRA-CT: 2006-006004-11.

Download Full-text

Multicenter, Prospective, Phase II and Biomarker Study of High-Dose Bevacizumab as Induction Therapy in Patients With Neurofibromatosis Type 2 and Progressive Vestibular Schwannoma

Journal of Clinical Oncology ◽

10.1200/jco.19.01367 ◽

2019 ◽

Vol 37 (35) ◽

pp. 3446-3454 ◽

Cited By ~ 13

Author(s):

Scott R. Plotkin ◽

Dan G. Duda ◽

Alona Muzikansky ◽

Jeffrey Allen ◽

Jaishri Blakeley ◽

...

Keyword(s):

Hearing Loss ◽

Growth Factor ◽

Phase Ii ◽

Standard Dose ◽

Neurofibromatosis Type ◽

Neurofibromatosis Type 2 ◽

High Dose ◽

Radiographic Response ◽

Bevacizumab Treatment

PURPOSE Bevacizumab treatment at 7.5 mg/kg every 3 weeks results in improved hearing in approximately 35%-40% of patients with neurofibromatosis type 2 (NF2) and progressive vestibular schwannomas (VSs). However, the optimal dose is unknown. In this multicenter phase II and biomarker study, we evaluated the efficacy and safety of high-dose bevacizumab in pediatric and adult patients with NF2 with progressive VS. PATIENTS AND METHODS Bevacizumab was given for 6 months at 10 mg/kg every 2 weeks, followed by 18 months at 5 mg/kg every 3 weeks. The primary end point was hearing response defined by word recognition score (WRS) at 6 months. Secondary end points included toxicity, radiographic response, quality of life (QOL), and plasma biomarkers. RESULTS Twenty-two participants with NF2 (median age, 23 years) with progressive hearing loss in the target ear (median baseline WRS, 53%) were enrolled. Nine (41%) of 22 participants achieved a hearing response at 6 months (1 of 7 children and 8 of 15 adults; P = .08). Radiographic response was seen in 7 (32%) of 22 patients with VS at 6 months (7 of 15 adults and 0 of 7 children; P = .05). Common mild to moderate adverse events included hypertension, fatigue, headache, and irregular menstruation. Improvement in NF2-related QOL and reduction in tinnitus-related distress were reported in 30% and 60% of participants, respectively. Paradoxically, high-dose bevacizumab treatment was not associated with a significant decrease in free vascular endothelial growth factor but was associated with increased carbonic anhydrase IX, hepatocyte growth factor, placental growth factor, stromal cell-derived factor 1α, and basic fibroblast growth factor concentrations in plasma. CONCLUSION High-dose bevacizumab seems to be no more effective than standard-dose bevacizumab for treatment of patients with NF2 with hearing loss. In contrast to adults, pediatric participants did not experience tumor shrinkage. However, adult and pediatric participants reported similar improvement in QOL during induction. Novel approaches using bevacizumab should be considered for children with NF2.

Download Full-text

A phase II study of high-dose cetuximab plus irinotecan in colorectal cancer patients with KRAS-wild type tumors who progressed on prior standard dose cetuximab and irinotecan.

Journal of Clinical Oncology ◽

10.1200/jco.2012.30.15_suppl.3582 ◽

2012 ◽

Vol 30 (15_suppl) ◽

pp. 3582-3582

Author(s):

Ahmad Ali Fora ◽

Jeanne A McMahon ◽

Greg Wilding ◽

Adrienne E. Groman ◽

Wen Wee Ma ◽

...

Keyword(s):

Colorectal Cancer ◽

Cancer Patients ◽

Phase Ii ◽

Primary Endpoint ◽

Dose Escalation ◽

Standard Dose ◽

Dose Schedule ◽

High Dose ◽

Grade 3 ◽

Colorectal Cancer Patients

3582 Background: Prior clinical data suggest a dose-related response to cetuximab (cmab) when combined with irinotecan in patients (pts) with KRAS WT tumors who do not develop grade ≥ 2 rash with standard cmab dosing. However, the investigation of higher doses of cmab in the setting of acquired or innate resistance to standard dose cmab has not been previously investigated. We conducted a phase II clinical trial of high-dose cmab plus irinotecan in KRAS WT pts who progressed on standard-dose cmab plus irinotecan. Methods: Pts who progressed within 4 weeks from receiving a minimum of 6 weeks of standard dose cmab plus irinotecan were included in this study. Cmab was administered at 500 mg/m2/week and irinotecan was administered at the same dose/schedule on which each individual patient previously progressed. All pts received doxycyline 100 mg PO bid starting day 1 of treatment. 12-week PFS rate was the primary endpoint. The regimen was considered interesting if 7/36 patients had stable disease or response at 12 weeks. The study was closed early after meeting its primary endpoint. Results: 20 pts were treated on study: median age 65.5 yrs (44-84), 14 pts were males. 8 pts had grade ≥ 2 hypomagnesaemia (3 grade 3 and 2 grade 4), 6 pts had grade ≥ 2 skin rash (1 grade 3, 0 grade 4), and 4 pts had grade ≥ 2 diarrhea (1 grade 3, 0 grade 4). 1 pt had a confirmed PR and 12 pts had a SD (at 6 weeks). In 9 pts, SD was confirmed at 12 weeks (3 pts> 24 weeks). Median PFS and OS were 2.8 and 6.6 months, respectively. The 1-year survival was 25%. Conclusions: High-dose cmab plus irinotecan is well tolerated with an acceptable rate of diarrhea and skin toxicities but with an increased rate of grade 3-4 hypomagnesemia. The prolonged disease stabilization and single response suggest that resistance to standard dose cmab plus irinotecan can be overcome by cmab dose escalation. The identification of predictive markers of response from dose escalation will be necessary to implement this strategy selectively in KRAS WT colorectal cancer patients.

Download Full-text