Intracerebral injection of CpG oligonucleotide for patients with de novo glioblastoma—A phase II multicentric, randomised study

2017 ◽  
Vol 73 ◽  
pp. 30-37 ◽  
Author(s):  
Renata Ursu ◽  
Alexandre Carpentier ◽  
Philippe Metellus ◽  
Vincent Lubrano ◽  
Florence Laigle-Donadey ◽  
...  
Keyword(s):  
Phase Ii ◽  
De Novo ◽  
Intracerebral Injection ◽  
Randomised Study ◽  
Cpg Oligonucleotide ◽  
De Novo Glioblastoma

scholarly journals Clinical benefit of glasdegib plus low-dose cytarabine in patients with de novo and secondary acute myeloid leukemia: long-term analysis of a phase II randomized trial

2021 ◽  
Author(s):  
Michael Heuser ◽  
B. Douglas Smith ◽  
Walter Fiedler ◽  
Mikkael A. Sekeres ◽  
Pau Montesinos ◽  
...  
Keyword(s):  
Acute Myeloid Leukemia ◽  
Phase Ii ◽  
Clinical Benefit ◽  
Myeloid Leukemia ◽  
Low Dose ◽  
De Novo ◽  
Secondary Acute Myeloid Leukemia ◽  
Low Dose Cytarabine ◽  
Acute Myeloid

AbstractThis analysis from the phase II BRIGHT AML 1003 trial reports the long-term efficacy and safety of glasdegib + low-dose cytarabine (LDAC) in patients with acute myeloid leukemia ineligible for intensive chemotherapy. The multicenter, open-label study randomized (2:1) patients to receive glasdegib + LDAC (de novo, n = 38; secondary acute myeloid leukemia, n = 40) or LDAC alone (de novo, n = 18; secondary acute myeloid leukemia, n = 20). At the time of analysis, 90% of patients had died, with the longest follow-up since randomization 36 months. The combination of glasdegib and LDAC conferred superior overall survival (OS) versus LDAC alone; hazard ratio (HR) 0.495; (95% confidence interval [CI] 0.325–0.752); p = 0.0004; median OS was 8.3 versus 4.3 months. Improvement in OS was consistent across cytogenetic risk groups. In a post-hoc subgroup analysis, a survival trend with glasdegib + LDAC was observed in patients with de novo acute myeloid leukemia (HR 0.720; 95% CI 0.395–1.312; p = 0.14; median OS 6.6 vs 4.3 months) and secondary acute myeloid leukemia (HR 0.287; 95% CI 0.151–0.548; p < 0.0001; median OS 9.1 vs 4.1 months). The incidence of adverse events in the glasdegib + LDAC arm decreased after 90 days’ therapy: 83.7% versus 98.7% during the first 90 days. Glasdegib + LDAC versus LDAC alone continued to demonstrate superior OS in patients with acute myeloid leukemia; the clinical benefit with glasdegib + LDAC was particularly prominent in patients with secondary acute myeloid leukemia. ClinicalTrials.gov identifier: NCT01546038.

scholarly journals Randomized Open-Label Phase II Study of Decitabine in Patients With Low- or Intermediate-Risk Myelodysplastic Syndromes

2013 ◽  
Vol 31 (20) ◽  
pp. 2548-2553 ◽  
Author(s):  
Guillermo Garcia-Manero ◽  
Elias Jabbour ◽  
Gautam Borthakur ◽  
Stefan Faderl ◽  
Zeev Estrov ◽  
...  
Keyword(s):  
Phase Ii ◽  
Low Dose ◽  
De Novo ◽  
Phase Ii Study ◽  
Cytogenetic Response ◽  
Open Label ◽  
End Points ◽  
Improvement Rate ◽  
Transfusion Independence ◽  
Open Label Phase

Purpose This open-label, randomized phase II trial assessed efficacy and tolerability of two low-dose regimens of subcutaneous (SC) decitabine in patients with low- or intermediate-1–risk myelodysplastic syndrome (MDS). Patients and Methods Patients received decitabine 20 mg/m2 SC per day for 3 consecutive days on days 1, 2, and 3 every 28 days (schedule A) or 20 mg/m2 SC per day once every 7 days on days 1, 8, and 15 every 28 days (schedule B) for up to 1 year. Primary efficacy end point was overall improvement rate (OIR: complete remission [CR], partial remission [PR], marrow CR [mCR], or hematologic improvement [HI]). Secondary end points were HI, transfusion independence, cytogenetic response, overall survival (OS), and time to acute myeloid leukemia or death. Results Efficacy and safety populations were identical: schedule A, n = 43; schedule B, n = 22. Median time from MDS diagnosis to treatment was 3.6 months; 89% had de novo MDS. The trial was terminated early on achievement of protocol-defined OIR superiority of schedule A over schedule B; OIR was 23% for schedule A (seven CRs, three HIs) and 23% for schedule B (one mCR, one PR, three HIs). No differences were observed in secondary end points. Median OS was not reached; approximately 70% of patients were alive at 500 days. Patients in schedule A (67%) and schedule B (59%) were RBC/platelet independent on study. The most frequent drug-related adverse events overall were neutropenia (28% v 36%), anemia (23% v 18%), and thrombocytopenia (16% v 32%). Conclusion In this phase II study, low-dose decitabine showed promising results in patients with low- or intermediate-1–risk MDS.

A Multicenter Phase II Study Using a Dose Intensified Pediatric Regimen in Adults with Untreated Acute Lymphoblastic Leukemia.

Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 1858-1858 ◽  
Author(s):  
Daniel J. DeAngelo ◽  
Lewis B. Silverman ◽  
Stephen Couban ◽  
Suzanne Dahlberg ◽  
Philip C. Amrein ◽  
...  
Keyword(s):  
Phase Ii ◽  
De Novo ◽  
Lymphoblastic Leukemia ◽  
Demographic Data ◽  
Philadelphia Chromosome ◽  
Remission Induction ◽  
Intrathecal Therapy ◽  
High Dose ◽  
Childhood All

Abstract Background: In children with ALL, current chemotherapy regimens produce an event-free survival (EFS) of greater than 80%. Adults with ALL have a much poorer prognosis, with EFS rates of 30–40%. Recent retrospective studies suggest that young adult patients may have superior outcomes when treated on more intensive pediatric regimens, but prospective studies are lacking. A phase II trial was performed in an effort to determine if an intensive pediatric regimen can be administered to adults with ALL. Methods: The therapeutic backbone of this protocol is based upon the high-risk arm of the DFCI Childhood ALL Consortium Protocol 00–01. Patients with newly diagnosed ALL were enrolled and received intensive multiagent remission induction chemotherapy, which included doxorubicin, prednisone, vincristine, high-dose methotrexate, high-dose asparaginase, and triple intrathecal therapy. CNS prophylaxis included triple intrathecal therapy and cranial radiation. Intensification therapy consisted of 3 week courses of doxorubicin, vincristine, dexamethasone, 6-mercaptopurine and 30 weeks of high-dose asparaginase that was individually dosed in order to maintain asparagine depletion. Continuation therapy consisted of 3 week courses of vincristine, dexamethasone, methotrexate and 6-mercaptopurine for a total of 2 years from an established complete remission (CR). Results: 71 patients have been enrolled to date. Although there was no initial upper age restriction, the protocol was amended to include only patients between the ages of 18–50 with de novo ALL; this amendment excluded 4 patients from the analysis. Two patients were enrolled but never received therapy. Demographic data are available for 61 evaluable patients. The median age was 28 years, (range, 18–50), 65% were male, 75% had B-lineage phenotype, and 13% were Philadelphia chromosome positive. In the 54 patients for whom response data was available, the 4 week CR rate was 82%. Among the patients who had the opportunity to complete Intensification therapy, asparaginase data was available for 23 patients, 18 (78%) of whom completed all 30 weeks. One death occurred during induction therapy from sepsis. Four patients developed grade 3 pancreatitis and one patient died of grade 5 pancreatitis. The latter case represented the only remission death on study. There were two cases of osteonecrosis, 10 cases of thrombosis/embolism and 12 cases of neutropenic infection that occurred during the post-remission period. At the median follow-up time of 18.4 months, the estimated EFS is 75% (95%CI: 61–89%) and the overall survival is 79% (95%CI: 65–93%). Conclusions: These results suggest that administration of a dose intensified pediatric-like strategy is feasible. Although the high EFS rate requires longer follow up and larger confirmatory studies, such intensive treatment of young adults with ALL could represent a major therapeutic advance.

A Phase II Study of Intravenous Azacitidine Alone in Patients with Myelodysplastic Syndromes NCT00384956.

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 1451-1451
Author(s):  
Richard Walgren ◽  
Crystal Dao ◽  
Frederieke Kreisel ◽  
Peter Westervelt ◽  
Camille Abboud ◽  
...  
Keyword(s):  
Median Time ◽  
Phase Ii ◽  
De Novo ◽  
Phase Ii Study ◽  
Study Drug ◽  
Complete Response ◽  
Subsequent Treatment ◽  
Open Label ◽  
Erythroid Response

Abstract Rationale: 5-Azacytidine (Aza), a DNA hypomethylating agent, has now been shown in 2 clinical trials involving high-risk MDS patients to provide a survival benefit over supportive/conventional care regimens. While one phase II study used a continuous 7-day IV infusion, Aza was administered subcutaneously (SQ) in most pre-approval studies. However, injection site reactions are not uncommon with SQ dosing, especially in thrombocytopenic patients. Aza given as a short intravenous (IV) infusion is anticipated to be efficacious from pharmacokinetic profiling and is FDA approved, but prospective efficacy data for short IV infusion are lacking. Study aim and design: To determine the efficacy of IV Aza when given as a short infusion, we have undertaken an open-label, single-arm, single-center phase II study of Aza in patients with MDS, either de novo or secondary, defined by FAB classification. Previously treated subjects were ineligible if they had already received Aza or decitabine. Treatment consisted of Aza 75 mg/m2 given as a 20 minute IV infusion once daily on Days 1–5 of a 28-day cycle. Response was evaluated by IWG 2000 criteria. After two cycles at the 75 mg/m2 dose, patients failing to achieve a CR were eligible for an increased dose of 100 mg/m2. After 6 cycles of therapy, patients must have demonstrated at least a hematologic improvement to continue on study. Study endpoints include determination of the complete response (CR) and partial response (PR) rates, and secondary endpoints examined the rates of hematological improvement, time to progression, and cytogenetic response. Results: Accrual began 8/17/06 with a target of 21 subjects. As of 7/31/07, 15 subjects have accrued with a median follow-up of 77 days (range 4 to 246). Subjects consisted of 9 males and 6 females with a median age of 69.6 yr (range 53 to 82). The median time from diagnosis is 213 days (range 0 days to 4 yr). By FAB criteria, subjects consist of 4 RA, 9 RAEB, 1 RAEB-t, and 1 CMML, and subjects are categorized by IPSS risk as 1 Low, 4 Int-1, and 10 Int-2. Two patients had therapy related MDS. The data remain preliminary with subjects having completed a mean of 3 cycles (range 1 to 6). None of the 5 subjects who have completed at least 4 cycles of therapy have achieved a CR. However, 2 (40%) of these subjects achieved a PR. Additionally, 1 (20%) patient had a major erythroid response, while another had a minor erythroid response. Median time to response was 2 months. Ten subjects remain on study, 1 patient withdrew due to progressive disease (in first week of therapy), and 4 deaths have occurred on study (2 due to sepsis, 1 each due to pneumonia and acute MI). No deaths were attributed to study drug. Common adverse events include nausea, emesis, and hematologic toxicities. Grade 2–3 nausea and grade 2–3 emesis each occurred in 5 subjects. Observed grade 3 or 4 hematologic toxicities included: anemia (n=7), thrombocytopenia (n=4), leukopenia (n=3), neutropenia (n=7), and febrile neutropenia (n=1). Hematologic toxicities have resulted in transient treatment delays (&lt; 4 weeks) and dose reduction, but hematologic toxicities have not prevented subsequent treatment on study. Conclusions: Although follow-up is short for assessment of efficacy, this is the first prospective study to report on efficacy and toxicity of short infusional Aza in the treatment of MDS.

A Multicenter Phase II Study Using a Dose Intensified Pediatric Regimen in Adults with Untreated Acute Lymphoblastic Leukemia.

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 587-587 ◽  
Author(s):  
Daniel J. DeAngelo ◽  
Suzanne Dahlberg ◽  
Lewis B. Silverman ◽  
Stephen Couban ◽  
Philip C. Amrein ◽  
...  
Keyword(s):  
Young Adults ◽  
Phase Ii ◽  
De Novo ◽  
Lymphoblastic Leukemia ◽  
Philadelphia Chromosome ◽  
Treatment Strategies ◽  
Intrathecal Therapy ◽  
High Dose ◽  
Childhood All

Abstract Background: Current chemotherapy regimens in children with ALL produce event-free survival (EFS) rates of greater than 80%. In contrast, adults with ALL have a much poorer prognosis, with EFS rates of 30–40%. Recent retrospective studies suggest that young adults may have superior outcomes when treated with intensive pediatric regimens. Unfortunately, prospective studies are lacking. This phase II trial was performed to determine if an intensive pediatric regimen could be administered to adults with ALL. Methods: The therapeutic backbone of this protocol is based on the high-risk arm of the DFCI Childhood ALL Consortium Protocol 00-01. Patients with newly diagnosed ALL received induction chemotherapy, which included doxorubicin, prednisone, vincristine, high-dose methotrexate, L-asparaginase (L-asp), and triple intrathecal therapy. CNS prophylaxis included triple intrathecal therapy and cranial radiation. Intensification therapy consisted of ten 3-week courses of doxorubicin, vincristine, dexamethasone, 6-mercaptopurine and 30 weeks of L-asp that was dosed to maintain asparagine depletion, defined as an L-asp level between 0.1 and 0.14. Continuation therapy consisted of 3 week courses of vincristine, dexamethasone, methotrexate and 6-mercaptopurine for a total of 2 years from an established complete remission (CR). Results: 89 patients have been enrolled and treated to date. The first 75 eligible patients were used for this analysis, 73 of whom had on-study data. Although there was no initial upper age restriction, the protocol was amended to include only patients between the ages of 18–50 with de novo ALL, which excluded 4 patients from the analysis. The median age was 28 years, (range, 18–50), 60% were male, 74% had B-lineage phenotype, and 20% were Philadelphia chromosome positive. The CR rate after 4 weeks was 84%. 39 patients had the opportunity to complete L-asp intensification therapy, and 27 (69%) completed all 30 weeks. The median L-asp dose was 16,582 U/m2 (starting dose was 12,500 U/m2). One death occurred during induction therapy (sepsis). Nine patients developed pancreatitis, one of whom died. This last case represented the only remission death on study. Two patients developed osteonecrosis, 14 thrombosis/embolism and 23 neutropenic infection during the post-remission period. With a median follow-up time of 15.3 months, the estimated 2-yr EFS is 72.5% (95%CI: 61–84%) and the estimated 2-yr overall survival (OS) is 77.1% (95%CI: 67–95%). Conclusions: The administration of a dose intensified pediatric regimen to adults with ALL is feasible. Although the high EFS and OS rates require longer follow up, such intensive treatment strategies for young adults with ALL could represent a major therapeutic advance.

Innovative Phase I/II Statistical Design in Combination Chemotherapy That Combines Toxicity and Efficacy Parameters to Increase Study Efficiency: Bendamustine and Idarubicin in De Novo Adult AML

Blood ◽  
2011 ◽  
Vol 118 (21) ◽  
pp. 1552-1552
Author(s):  
Jack M. Lionberger ◽  
Kathleen Shannon Dorcy ◽  
Carol Dean ◽  
Nathan Holm ◽  
Bart Lee Scott ◽  
...  
Keyword(s):  
Phase I ◽  
Phase Ii ◽  
De Novo ◽  
Statistical Design ◽  
Maximum Tolerated Dose ◽  
Dose Finding ◽  
Therapeutic Decisions ◽  
Number Of Patients ◽  
Relevant Dose ◽  
Acceptable Probability

Abstract Abstract 1552 Background: Novel drugs or drug combinations are conventionally tested first in Phase I studies (in which therapeutic decisions are based solely on toxicity) with Phase II (efficacy) evaluations following as a separate trial. This process not only slows new drug development, it is challenging for patients during the informed consent process, because they usually enter trials not merely in hope of “no toxicity” but in hope of response. Response rates in Phase I at doses less than the maximum tolerated dose (MTD) may be irrelevant to efficacy, but this common assumption remains unproven. An equally plausible alternative is efficacy failure at these lower doses augurs failure at the MTD in Phase II. This hypothesis prompted development of a Phase I-II Bayesian design that uses both efficacy and toxicity to find a clinically relevant dose (Biometrics 2004;60: 684–93). In the current study, we apply the innovative Bayesian approach to the design of a Phase I-II trial using bendamustine + idarubicin in older patients (>50 yo) with newly-diagnosed AML or high risk MDS (>10% marrow blasts). We then compare and contrast our trial operation with that of the standard 3+3 Phase I design. Methods: The design specifies anticipated probabilities (“priors”) of response (CR or no CR) and toxicity (grade 3–4 or not) at each of 4 doses of bendamustine (45,60,75,90 mg/m2 daily × 5 together with idarubicin 12 mg/m2 daily on day 1 and 2). Patients are entered in groups of 3 beginning at the 45 mg/m2 dose. As response/toxicity data became available for each cohort, Bayes theorem is used to update the priors and derive current probabilities (“posteriors”) of response/toxicity at each dose. The priors are set to be relatively non-informative allowing the posteriors to be primarily influenced by the data from the trial. The posteriors are referred to a minimum acceptable probability of response (here 40%) and a maximum acceptable probability of toxicity (30%). If the posteriors indicate that it is highly unlikely (< 2% chance) that any dose is associated with both of these probabilities the trial stops. Otherwise the next cohort of patients is treated at a dose so associated. This process is repeated iteratively to a maximum sample size of 48 patients. The parameters noted above were chosen to give desirable probabilities of selecting for future study doses meeting the minimum acceptable response and maximum acceptable toxicity rates. Results: Table 1 compares the operation of this trial with a standard 3+3 Phase I trial. Given that 2/3 patients had toxicity at the 75 dose, a Phase I 3+3 design would have declared 60 the MTD. Subsequently, an “expansion cohort” as a Phase II trial would be treated at this dose without any possibility of revisiting the 75 dose. This conclusion flies in the face of basic notions of statistical reliability and ignores the possibility that patients experiencing toxicity may have been particularly old, had significant comorbidities, or have a variable functional reserve for undefined reasons. In contrast, the Phase I-II design allows the trial to continue, and potentially revisit higher doses of therapy depending on the collective outcome of a greater number of patients. Based on our actual data, this trial continued to treat patients at the 60 mg/m2 dose level, and in the next three patients there was no toxicity. In this case response data becomes the determining factor, which improves the efficiency of the trial. If 0/3 patients had a response, the trial would return to 75 mg/m2, however, because 2/3 patients had a response, the trial continues to accrue at 60mg/m2, with the statistical force of twice the number of patients. Conclusion: Accounting for response during dose finding seems to permit more sophisticated/flexible decisions about dosing in addition to improving efficiency. Disclosures: Shannon Dorcy: Cephalon: Consultancy, Honoraria, Speakers Bureau.

A Phase II Expansion Study Of Vorinostat In Combination With Idarubicin and Cytarabine For Patients With Acute Myelogenous Leukemia (AML) With FLT3 Molecular Alterations

Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 2684-2684 ◽  
Author(s):  
Koichi Takahashi ◽  
Elias Jabbour ◽  
Farhad Ravandi ◽  
Gautam Borthakur ◽  
Jorge E. Cortes ◽  
...  
Keyword(s):  
Phase Ii ◽  
Research Funding ◽  
Response Rate ◽  
De Novo ◽  
Phase Ii Study ◽  
High Response Rate ◽  
Myelogenous Leukemia ◽  
Abnormal Karyotype ◽  
Npm1 Mutation ◽  
Acute Myelogenous

Abstract Background The combination of vorinostat, idarubicin and cytarabine (IA+vorinostat) is associated with high response rate in patients with newly diagnosed acute myelogenous leukemia (AML) or higher-risk myelodysplastic syndromes (MDS) (JCO 2012;30:2204). In that study, presence of FLT3-ITD was associated with 100% overall response rate (ORR) in 11 patients. To confirm the efficacy of this combination, we extended the phase II study to treat 2 additional cohorts: one for patients with newly diagnosed (untreated cohort) and the other with relapsed and refractory (R/R cohort) AML or higher-risk MDS with FLT3 alteration (both ITD and D835 mutation). Methods Patients with the above diagnosis, ages 15 to 65 years, with appropriate organ function (measured cardiac ejection fraction ≥ 50%, serum creatinine ≤ 2 mg/dl, total bilirubin ≤ 2 mg/dl, and GPT/GOT ≤ 2.5 x upper limit of normal) whose eastern cooperative group (ECOG) defined performance status ≤ 2 were eligible for the study. Study treatment comprised of vorinostat 500 mg orally three times a day (days 1 to 3), idarubicin 12 mg/m2 intravenously (IV) daily x 3 days (days 4 to 6), and cytarabine 1.5 g/m2 IV as a continuous infusion daily x 3 - 4 days (days 4 to 7). Patients in remission could be treated with five cycles of consolidation therapy with lower dose combination and up to 12 months of maintenance therapy with single-agent vorinostat. Result Untreated cohort included 26 patients, whereas 13 patients were treated in R/R cohort (total 39 patients). Thirty six patients had de novo AML, 1 had de novo MDS and 2 had therapy-related AML. For the R/R patients, the median number of prior therapies was 3 (range: 1-6). The median age of the entire study group was 49 (range: 19-64) and 17 (44%) were male. Among the patients whose cytogenetic result were available, 20 (51%) patients had normal and 15 (39%) had abnormal karyotype. By Medical Research Council (MRC) criteria, 30 (77%) patients had intermediate risk and 9 (23%) had poor risk karyotype. Thirty three (85%) patients had FLT3-ITD only, 4 (10%) had both FLT3-ITD and D835 mutation, and 2 (5%) had D835 mutation only. Seventeen (44%) patients had NPM1 mutation. In untreated cohort (N = 26), CR and CRp were documented in 21 (80%) and 2 (8%) patients, respectively (ORR = 88%). In R/R cohort (N = 13), overall response (OR) was observed in 4 (30%) patients (CR in 2 [15%] and CRp in 2[15%]). Of those 4 patients who had OR in R/R cohort, 2 patients were refractory to other high-dose cytarabine-based regimen. The median duration of CR or CRp was 9.2 months (range: 0.1-48.4) in untreated cohort and was 2.9 months (range: 1.6-4.7) in R/R cohort. Twelve (46%) patients in the untreated cohort were bridged to stem cell transplant (SCT) while they were in 1st CR. None of the patients in R/R cohort were bridged to SCT. No difference in response was observed in 1) younger (Age < 60) vs. older patients, 2) normal vs. abnormal karyotype, 3) intermediate vs. poor risk cytogenetics by MRC criteria, 4) presence of RAS mutation, 5) presence of NPM1 mutation, or 6) de novo vs. therapy-related disease. The median overall survival (OS) was 21.7 months (95% CI: 8.1-35.3) in the untreated cohort and was 4.9 months (95% CI: 0.1-10.4) in the R/R cohort. Early treatment related mortality (defined by the death within 4 weeks of the induction) was documented in 1 (4%) patient in the untreated cohort and 2 (15%) patients in the R/R cohort. Toxicity profiles were similar to that reported in the original phase II study (JCO 2012;30:2204). Discussion Vorinostat in combination with IA provides high response rate and durable remission in previously untreateed AML or higher risk MDS patients with FLT3 alteration but is less effective in patients with R/R disease. Phase III randomized study of IA+/- vorinostat in previously untreated AML patients is ongoing (SWOG S1203). Disclosures: Off Label Use: vorinostat in MDS and AML. Cortes:Ambit: Research Funding; Astellas: Research Funding; Argo: Research Funding; Novartis: Research Funding.

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