Phase II study of pembrolizumab plus olaparib in the treatment of patients with advanced cholangiocarcinoma.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. TPS4659-TPS4659
Author(s):  
Aiwu Ruth He ◽  
Benjamin Adam Weinberg ◽  
Marcus Smith Noel ◽  
Violeta P Milic ◽  
Petra Prins ◽  
...  

TPS4659 Background: Lack of an effective second-line treatment of patients (pts) with advanced cholangiocarcinoma (CC) necessitates the development of new therapies. Preclinical studies suggest CC susceptibility to PARP inhibition (PARPi): ERCC1 is underexpressed in 74% of CCs, and olaparib is selective for ERCC1 deficiency, profoundly inhibiting DNA repair. Additionally, PARPi exploits IDH mutation-related DNA damage repair deficiency, which is found in about 25% of CCs. Unfortunately, PARPi also upregulates PD-1-PD-L1 receptor-ligand binding, which attenuates anticancer immunity and counteracts the efficacy of PARPi. However, this can be prevented by PD-1 inhibition—blockade of PD-1-PD-L1 acts to re-sensitize cancer cells to T-cell killing. Hence, we hypothesize that the combination of olaparib and pembrolizumab will produce a durable anti-tumor response against CC by synergistically inducing DNA damage and increasing immune response. Methods: Thirty-six pts with advanced CC, who either failed to respond to or progressed on first-line therapy, will be enrolled to receive olaparib (300 mg PO bid) daily plus pembrolizumab (200 mg IV Q3 weeks) for 12 months, unless unacceptable toxicities or cancer progression occur, in which cases therapy will cease. MRI or CT tumor assessment will occur just before therapy, every 6 weeks for the first 6 months of therapy, and then every 9 weeks for the next 6 months of therapy (total, 12 months). Three tumor biopsies will be collected: at baseline; at week 4; and at time of progression. In each biopsy, ERCC1, PD-1, and PD-L1 expression, IDH1/2 mutation status, and immune cell (CD3 and CD8) response will be assessed. The total study duration will be 20-36 months. The primary endpoint will be overall response rate; the secondary endpoints will be PFS, OS, duration of response, and safety and tolerability. It is hypothesized that in pts with advanced CC, second-line therapy with olaparib plus pembrolizumab will improve the response rate from 17.5% to 35%, as well as increase PFS and OS compared to cytotoxic chemotherapy. Study enrollment began in Q1 2020. NCI number pending at time of abstract submission. Clinical trial information: pending at time of submission .

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 7134-7134
Author(s):  
J. S. Lee ◽  
D. H. Lee ◽  
J. J. Lee ◽  
J. Y. Han ◽  
S. H. Park ◽  
...  

7134 Background: To compare the efficacy and toxicity of IP vs. non-platinum-based GV in the treatment of advanced NSCLC, we conducted a randomized phase II trial with planned cross-over to the other regimen upon disease progression (PD) after the first-line therapy. Methods: Eligibility required stage IIIb/IV NSCLC, no prior chemotherapy, measurable disease, ECOG PS 0–2, adequate organ functions, and informed consent. After stratification by gender, stage (IIIB or IV) and performance status (PS: 0–1 or 2), eligible pts were randomized to receive either IP (I 65 mg/m2 & P30 mg/m2 on D1 & 8 q 3 weeks) first then GV (G 900 mg/m2 &V25 mg/m2 on D1 & 8 q 3 weeks) upon PD (Arm A) or GV first then IP upon PD (Arm B). Results: Between 12/2003 and 06/2005, 146 pts were enrolled in either Arm A (n = 75) or Arm B (n = 71). There was no difference in gender (male: 77.3% vs. 81.7%), age (median: 58 vs. 60 yrs), PS (PS 2: 10.7% vs. 8.5%), histology (adenocarcinoma: 72.0% vs. 76.6%) and stage (IV: 88.0% vs. 87.3%). IP tended to generate more responses than GN (42.0% vs. 29.0% as first-line, 30.2% vs. 14.3% as second-line), but there was no difference in total response rate by the treatment arm (Arm A: 45.6%, B: 43.5%). During the first-line therapy, IP caused more G3+ anemia (20.0% vs. 7.1%, p = 0.048), G2/3 nausea/vomiting (41.4% vs. 12.9%, p < 0.001), G2 alopecia (35.7% vs. 10.0%, p = 0.001) than GN while pneumonitis was noted only with GN (11.4%). Toxicity profile was similar after the second-line therapy. Both arms resulted in excellent survival outcome with no significant difference between the Arm A and B (median: 16.5 mo vs. 15.1 mo, p = 0.595). Conclusions: Platinum-based IP regimen seemed to be more effective in terms of response rate. Given the overall survival data and the mild toxicity profile of GV regimen, however, either treatment sequence seems to be acceptable for the treatment of advanced metastatic NSCLC. (Supported in part by NCC grants 0210140 and 0510140). No significant financial relationships to disclose.


1998 ◽  
Vol 16 (4) ◽  
pp. 1494-1497 ◽  
Author(s):  
P G Rose ◽  
N Fusco ◽  
L Fluellen ◽  
M Rodriguez

PURPOSE The combination of paclitaxel and a platinum compound is the most active first-line regimen for advanced ovarian carcinoma. The current study was undertaken to evaluate this combination in the re-treatment of patients with ovarian or peritoneal carcinoma who had disease recurrence > or = 6 months following this combination. METHODS Twenty-five patients with recurrent ovarian or peritoneal carcinoma > or = 6 months after a complete clinical response with first-line paclitaxel and platinum chemotherapy were studied. Recurrent disease was documented by computed tomography (CT), elevated CA 125 level, or surgical findings. Second-line chemotherapy consisted of paclitaxel 135 mg/m2 as a 24 hour infusion and carboplatin at an area under the concentration-time curve (AUC) of 5 to 6 every 21 days. Response to therapy was classified as measurable or assessable. RESULTS The median time to recurrence after first-line therapy was 10 months (range, 6 to 30). Among 20 measurable and assessable patients, 14 (70%) demonstrated a complete clinical response and four (20%) a partial clinical response. The response rate with measurable disease was 91% and with assessable disease was 89%. The median progression-free interval for all patients was 9.0+ months (range, 2 to 15). The median progression-free interval for patients with measurable or assessable disease was 9.0+ months and for nonassessable disease was 7.0+ months. Fifteen patients (60%) have developed recurrence after secondary therapy at a median interval of 9.0 months (range, 2 to 15). Only two patients have died with a median survival after secondary therapy of 10.0+ months (range, 2.0 to 21.0+). CONCLUSION The use of this combination, in this sensitive population, has a high response rate and long progression-free interval. In a chemotherapy-sensitive population, the activity of alternative second-line agents must be interpreted with this perspective.


2014 ◽  
Vol 32 (3_suppl) ◽  
pp. 87-87 ◽  
Author(s):  
Kazuhiro Nishikawa ◽  
Kazuaki Tanabe ◽  
Masashi Fujii ◽  
Chikara Kunisaki ◽  
Akihito Tsuji ◽  
...  

87 Background: In East Asia, S-1 + CDDP (SP) has been employed as first-line therapy for advanced gastric cancer (AGC) from the results of SPIRITS trial. Patients who were resistant to chemotherapy with S-1 in the first-line treatment were widely treated with taxane alone or CPT-11 alone as the second-line treatment. On the other hand, the response rate of combination therapy with S-1 is higher than that of CPT-11 alone. Then, we hypothesized that S-1 + CPT-11 prolongs survival in the second-line treatment comparing with CPT-11 alone after failure in the first-line treatment with S-1. (NCT00639327). Methods: Patients with AGC who confirmed disease progression by imaging after the first-line therapy with SP, S-1 + cocetaxel or S-1 alone except S-1 + CPT-11 were allocated into S-1 plus CPT-11 group (Group A) or CPT-11 alone group (Group B) as second-line chemotherapy. Patients who were relapsed to adjuvant chemotherapy with S-1 were not enrolled. Primary endpoint was overall survival, and secondary endpoints were progression free survival, response rate and adverse events. Results: From March 2008 to June 2011, 304 patients were enrolled, and 294 were eligible for analysis. The overall survival was 8.8 months (M) in the Group A and 9.4M in the Group B. There is no statistically significant difference in both groups (P=0.9156). The progression free survival was 4.8M in the Group A and 4.9M in the Group B (P=0.1568). The response rate was 7.6% in the Group A and 7.4% in the Group B. Grade 3 or higher leukopenia, neutropenia and febrile neutropenia were observed more frequently in the Group A than in the Group B. Conclusions: From our results, we do not recommend consecutive use of S-1 as second-line treatment in patients who are refractory to S-1 in first-line chemotherapy. Clinical trial information: 00639327.


2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S680-S681
Author(s):  
Carly Heck ◽  
Judith Martin ◽  
Marcia Kurs-Lasky

Abstract Background Background: Antibiotic resistance is a major public health concern. A modifiable intervention is outpatient antibiotic stewardship. The goal of this study was to review the electronic health records (EHR) of children diagnosed with community acquired pneumonia (CAP) to compare patients who received non-guideline concordant therapy with those prescribed recommended therapy. Methods Methods: This was a retrospective chart review of 300 children (6 months to 6 years old) with an outpatient diagnosis of CAP between July 2017 and June 2019. 45 Children’s Hospital of Pittsburgh (CHP) and UPMC Children’s Community Pediatrics (CCP) practices were included. CHP practices are academic-based with trainees involved in visits, while CCP practices do not include trainees. First-line recommended therapy was defined as amoxicillin, second-line therapy as azithromycin or amoxicillin-clavulanate, and all other prescriptions were defined as other. Patients prescribed first-line therapy were compared to patients with second-line therapy or other. If first-line therapy was not prescribed, the EHR was manually reviewed for justification. If drug allergy was listed, the medication allergy and type of reaction were recorded. Results Results: In this study the minority of children (43%) were prescribed first-line therapy. This group was younger (57 vs. 63 months of age), more likely to be Non-white (80%), and seen at the CHP locations than those prescribed non-guideline concordant therapy. The average symptom duration was shorter, heart rate and respiratory rate were higher and the presence of fever was more common in the first-line therapy group. Justification for non-guideline therapy was most often reported as to provide coverage for atypical organisms. The most common drug allergy recorded was amoxicillin, and urticaria with unknown timing was the most common type of reaction. Demographics Comparison Results Justification for Second-line / Other Therapy and Drug Allergy Results Conclusion This project observed a high proportion of children being prescribed non-guideline concordant therapy for a diagnosis of CAP. Age, race, practice location, and severity of illness measures showed a statistically significant difference between groups. This study highlights the importance of education which reviews the current guidelines and the most likely pathogens for children with CAP. Disclosures All Authors: No reported disclosures


2004 ◽  
Vol 22 (7) ◽  
pp. 1209-1214 ◽  
Author(s):  
Axel Grothey ◽  
Daniel Sargent ◽  
Richard M. Goldberg ◽  
Hans-Joachim Schmoll

Purpose Fluorouracil (FU)-leucovorin (LV), irinotecan, and oxaliplatin administered alone or in combination have proven effective in the treatment of advanced colorectal cancer (CRC). Combination protocols using FU-LV with either irinotecan or oxaliplatin are currently regarded as standard first-line therapies in this disease. However, the importance of the availability of all three active cytotoxic agents, FU-LV, irinotecan, and oxaliplatin, on overall survival (OS) has not yet been evaluated. Materials and Methods We analyzed data from seven recently published phase III trials in advanced CRC to correlate the percentage of patients receiving second-line therapy and the percentage of patients receiving all three agents with the reported median OS, using a weighted analysis. Results The reported median OS is significantly correlated with the percentage of patients who received all three drugs in the course of their disease (P = .0008) but not with the percentage of patients who received any second-line therapy (P = .19). In addition, the use of combination protocols as first-line therapy was associated with a significant improvement in median survival of 3.5 months (95% CI, 1.27 to 5.73 months; P = .0083). Conclusion Our results support the strategy of making these three active drugs available to all patients with advanced CRC who are candidates for such therapy to maximize OS. In addition, our findings suggest that, with the availability of effective salvage options, OS should no longer be regarded as the most appropriate end point by which to assess the efficacy of a palliative first-line treatment in CRC.


2021 ◽  
Vol 39 (3_suppl) ◽  
pp. 324-324
Author(s):  
Ciro Celsa ◽  
Giuseppe Cabibbo ◽  
Marco Enea ◽  
Salvatore Battaglia ◽  
Giacomo Emanuele Maria Rizzo ◽  
...  

324 Background: Atezolizumab plus Bevacizumab represents the new best performing first-line approach for unresectable hepatocellular carcinoma (u-HCC). However, the best sequential strategy after every first-line failure (for progression or intolerance) remains elusive, and options for retreating patients failing Atezolizumab plus Bevacizumab with multi-kinase inhibitors (MKI) or immune checkpoint inhibitor (ICI) are yet undefined. Methods: We developed a Markov model to analyze simulated-Overall Survival (s-OS) of second-line ICIs or MKIs after first-line Atezolizumab plus Bevacizumab over a lifetime horizon. For first-line therapy, PFS of Atezolizumab plus Bevacizumab was extracted from Imbrave 150 trial and it was used as endpoint since it is not influenced by post-progression survival. For second-line retreatment, pooled OS of MKIs (Regorafenib and Cabozantinib), or ICIs (Nivolumab and Pembrolizumab) were adopted. Survival estimates for sequential settings considered the proportion of patients who did not receive second-line therapy due to death during first-line therapy. Individual patient survival data were extracted from PFS and OS Kaplan-Meier curves of RESORCE trial for Regorafenib, CELESTIAL trial for Cabozantinib, CheckMate-040 for Nivolumab and Keynote-240 for Pembrolizumab. Each reconstructed survival curve was inspected for accuracy and was compared with originally published curves. Results: First-line Atezolizumab plus Bevacizumab followed by second-line ICIs turned on from the model as the best sequential strategy (median s-OS 24 months; 95% Confidence Interval (CI) 23-26 months) and extends survival when compared Atezolizumab plus Bevacizumab followed by MKIs (median s-OS 20 months; 95% CI 19-21 months). Conclusions: To our knowledge and given the absence of adequately designed sequential RCTs, this is the first model to date which suggests, with a proper methodological approach, an accurate estimate of outcome of patients with u-HCC treated by sequential systemic therapies. In patients with u-HCC failing first-line treatment, modelling estimates of s-OS for each retreatment strategies may assist in choosing the most promising sequences in order to plan appropriate RCTs.


Blood ◽  
2020 ◽  
Vol 136 (Supplement 1) ◽  
pp. 14-15
Author(s):  
Ali McBride ◽  
Daniel O. Persky

Introduction: The choice of initial therapy in follicular lymphoma can be a key determinant in future therapy, as irreversible toxicities with first line regimens can impact the patient's ability to tolerate future treatment. Minimizing drug exposure will result in less frequent occurrence of significant adverse events and associated treatment costs. In the era of COVID-19 pandemic, there is additional benefit to minimizing the number of patient visits and hospital admissions. Limited information exists related to the outcomes and associated costs of existing treatment sequences. Additionally, treatment administration at different types of clinical sites results in varied reimbursement models, making informed evaluation of clinical and financial evidence challenging. Methods: The current study applies a budget impact model methodology in order to describe the associated impact of treatment selection and sequencing on outcomes and costs in the treatment of relapsed or refractory low-grade follicular lymphoma in first line therapy followed by Consolidation and also in first line therapy to second line therapy. Key model inputs included: Number of treatment cycles, number of days a treatment was received, duration of response (DOR), rate of side effects and associated costs, and total treatment costs, including drugs, medical treatment, laboratory testing and adverse event costs. Treatment outcomes were based on the published literature that summarized the overall response rate, median DOR, and toxicity. Treatment regimen costs were evaluated based on payer pricing, Wholesale Acquisition Cost (WAC), Average Selling Price (ASP) and Average Wholesale Price (AWP) and modified to adjust for weight-based dosing and negotiate payer reimbursement rates. Associated medical costs for medical treatment and supportive care were estimated using current Medicare fee schedule rates. Included were seven options for first line therapy of follicular lymphoma from 2020 NCCN Guidelines - (Bendamustine + rituximab (BR); Bendamustine + Obinutuzumab (OB); CHOP rituximab (RCHOP); CHOP + Obinutuzumab (OCHOP); CVP+ rituximab (RCVP); CVP + Obinutuzumab (OCVP); Lenalidomide + rituximab (R2)), followed by three for Consolidation (Rituximab maintenance (RM); Obinutuzumab maintenance (O); Radioimmunotherapy (RIT with 90 Y-ibritumomab tiuxetan (Y90-IT, Zevalin)) and three Second Line therapy options (RIT; Lenalidomide only; Lenalidomide + Obinutuzumab (LO)). Results: The treatment sequence of first line BR followed by Consolidation with RIT Y90 (Zevalin) had the longest predicted DOR (2586 days). The associated treatment sequence costs were $212,485 for BR followed by Y90-IT, compared with $233, 388 for BR followed by rituximab maintenance, which had a predicted DOR of 2478 days. The predicted DOR for treatment sequences starting with OCHOP, OCVP and RCHOP and followed by RIT with Y90-IT was approximately 1000 days less than BR followed by Y90-IT for a cost difference of $4,421, $12,914 and $25,826, respectively. The treatment sequence of first line BR followed by Second Line RIT Y90-IT had the second longest predicted DOR of 2586 days at costs of $212,485, compared to 2778 days for BR followed by LO, at a total sequence costs of $796,695. Conclusion: The use of Y90-IT in Consolidation or Second Line treatment demonstrated desired patient outcomes at one of the lowest cost profiles. Additionally, Y90-IT administration can be completed in only two clinic visits, reducing patient travel and contact, improving safety in an era of COVID-19 precautionary measures and reducing cost. Figure 1. Duration of Response and Total Sequence Costs for Twelve First Line to Consolidation and First Line to Second Line Treatment Regimens. Disclosures McBride: Merck: Speakers Bureau; Coherus BioSciences: Consultancy, Speakers Bureau; Pfizer: Consultancy; Bristol-Myers Squibb: Consultancy; MorphoSys: Consultancy; Sandoz: Consultancy.


2017 ◽  
Vol 20 (5) ◽  
pp. 356-362
Author(s):  
Ekaterina A. Shestakova

Type 2 diabetes causes hundred thousand deaths worldwide every year. Though new antidiabetic drugs appear annually and new classes of drugs are invented approximately every ten years still a lot of type 2 diabetic patients remain to be out of the target glycemic levels. According to most of the guidelines for type 2 diabetes,treatment metformin is the first line therapy for this disease. The choice of second-line antidiabetic drug usually depends on doctors preference. That is why defining the correct drug for exact patient is still an urgent question. This review provides data on antidiabetic drugspotential for preventing the progression of micro- and macrovascular complications.The question of the potential of early antidiabetic therapy intensification to activate legacy effect is debated. Early and lasting compensation of diabetes with the use of multiple drugs can become a basis for primary prevention of cardiovascular disease in such patients.


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