Safety and efficacy of chidamide in combination with decitabine plus anti-PD-1 camrelizumab after relapse or progression on decitabine-plus-camrelizumab in classical Hodgkin lymphoma.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e19515-e19515
Author(s):  
Chunmeng Wang ◽  
Jing Nie ◽  
Yang Liu ◽  
Qingming Yang ◽  
Weidong Han
Keyword(s):  
Adverse Events ◽  
Hodgkin Lymphoma ◽  
Objective Response Rate ◽  
Response Rate ◽  
Objective Response ◽  
Complete Response ◽  
Classical Hodgkin Lymphoma ◽  
Primary Resistance ◽  
Safety And Efficacy ◽  
Treatment Regimens

e19515 Background: The anti-PD-1 combination therapy significantly improves clinical outcomes in patients with relapsed/refractory classical Hodgkin lymphoma (cHL), and up to 71% of patients who receive decitabine-plus-anti-PD-1 camrelizumab could achieve a complete response. However, a subset of patients is recalcitrant to decitabine-plus-camrelizumab and half of patients might experience disease progression within three years. Effective treatment regimens for those with relapsed or progressive cHL who failed decitabine-plus-camrelizumab are needed. This Phase II study was designed to assess the safety and efficacy of the combination of decitabine-plus-camrelizumab and chidamide, a histone deacetylase inhibitor, in decitabine-plus-camrelizumab resistant cHL patients. Methods: Patients with relapsed/refractory cHL who had primary resistance or progressed/relapsed on decitabine-plus-camrelizumab were enrolled and administrated with chidamide at 10 mg (days 1 to 4) and 20 mg (days 8, 11,15 and 18); plus decitabine at 10 mg (days 1 to 5); and camrelizumab at 200 mg (day 6), every 3 weeks. Safety was assessed by CTCAEv5.0, and antitumor response by PET-CT according to the revised Lugano classification. The primary endpoint was objective response rate. Recruitment is ongoing. This trial is registered with ClinicalTrial.gov number, NCT04233294. Results: Between January 19, 2020, and January 31, 2021, nineteen patients with relapsed/refractory cHL after relapse or progression on decitabine-plus-camrelizumab were enrolled. A median of 20 cycles of prior decitabine-plus-camrelizumab was given (range, 4-28). Fourteen patients completed response evaluation with a median follow-up of 5.7 months. All eligible patients received this triplet-agent regimen with a median of 8 cycles (range, 3 to 12). Thirteen of the fourteen evaluated patients (93%) had an objective response, including six acquiring a complete remission (43%) and seven reaching a partial response (50%). The most common adverse events were leukocytopenia (58%; grade 3: 16%), nausea (53%) and hypertriglyceridemia (26%). No immune-related adverse events were observed. Conclusions: The preliminary result shows a high objective response rate with the combination of chidamide, decitabine and camrelizumab in patients with resistance to decitabine-plus-camrelizumab therapy. The addition of chidamide to decitabine-plus-camrelizumab has an acceptable safety profile, and does not trigger immune-related adverse events. Clinical trial information: NCT04233294.

Crizotinib Versus Chemotherapy on ALK-positive NSCLC: A Systematic Review of Efficacy and Safety

2018 ◽  
Vol 19 (1) ◽  
pp. 41-49 ◽  
Author(s):  
Mingxia Wang ◽  
Guanqi Wang ◽  
Haiyan Ma ◽  
Baoen Shan
Keyword(s):  
Systematic Review ◽  
Clinical Trials ◽  
Adverse Events ◽  
Objective Response Rate ◽  
Retrospective Studies ◽  
Response Rate ◽  
Objective Response ◽  
Treated Group ◽  
Efficacy And Safety ◽  
Alk Positive

Introduction: Crizotinib was approved to treat anaplastic lymphoma kinase (ALK)- positive non-small cell lung cancer (NSCLC) by the Food and Drug Administration in 2011.We conducted a systematic review of clinical trials and retrospective studies to compare the efficacy and safety of crizotinib with chemotherapy. </P><P> Methods: We searched electronic databases from inception to Dec. 2016. Clinical trials and retrospective studies regarding crizotinib and crizotinib versus chemotherapy in treatment of NSCLC were eligible. The primary outcomes were the objective response rate (ORR) and disease control rate (DCR). Results: Nine studies (five clinical trials and four retrospective studies) including 729 patients met the inclusion criteria. Crizotinib treatment revealed 1-year OS of 77.1% and PFS of 9.17 months. And crizotinib had a better performance than chemotherapy in ORR (OR: 4.97, 95%CI: 3.16 to 7.83, P<0.00001, I2=35%). DCR revealed superiority with crizotinib than chemotherapy (OR: 3.42, 95% CI: 2.33 to 5.01, P<0.00001, I2=0%). PR (partial response) were significant superior to that of chemotherapy through direct systematic review. No statistically significant difference in CR (complete response) was found between crizotinib-treated group and chemotherapy-treated group. Regarding SD (stable disease), chemotherapy-treated group had a better performance than crizotinib-treated group. Common adverse events associated with crizotinib were visual disorder, gastrointestinal side effects, and elevated liver aminotransferase levels, whereas common adverse events with chemotherapy were fatigue, nausea, and hematologic toxicity. This systematic review revealed improved objective response rate and increased disease control rate in crizotinib group comparing with chemotherapy group. Crizotinib treatment would be a favorable treatment option for patients with ALK-positive NSCLC. ALK inhibitors may have future potential applications in other cancers driven by ALK or c-MET gene mutations.

Retrospective Review of Safety and Efficacy of Anlotinib in Advanced Osteosarcoma With Metastases After Failure of Standard Multimodal Therapy

2021 ◽  
Author(s):  
Hanqing Li ◽  
Yang Li ◽  
Lei Song ◽  
Qiuchi Ai ◽  
shuai zhang
Keyword(s):  
Adverse Events ◽  
Multimodal Therapy ◽  
Objective Response ◽  
Progression Free Survival ◽  
Complete Response ◽  
Free Survival ◽  
Safety And Efficacy ◽  
Common Drug ◽  
Grade 3 ◽  
Therapeutic Doses

Abstract To study and observe the safety and efficacy of anlotinib in the treatment of advanced osteosarcoma with metastases. We retrospectively studied patients with advanced osteosarcoma and metastases who received anlotinib treatment in our hospital from June 2018 to April 2020. All patients had received standard multimodal therapies, before taking anlotinib. Therapeutic doses of anlotinib were 12 mg for adults and 10 mg for children and adolescents once a day for 2 consecutive weeks, followed by a week of withdrawal. This 3-week cycle of treatment was continued until the tumor progressed rapidly or the patients failed to tolerate the side effects. Adverse drug reactions were recorded, and therapeutic efficacy was evaluated based on progression free survival (PFS), disease control rate (DCR), overall survival (OS), and objective response rate (ORR). The median PFS was 9.81 ± 0.9 months, and the 6-month and 10-month PFS rates were 73.3% and 33.3%, respectively. The median OS was 11.43 ± 0.58 months. No patients achieved complete response. After 6 months of treatment, the DCR and ORR were 80% and 13.3%, respectively. No drug-related deaths or Grade 4 adverse events occurred in the patients. Five patients (33.3%) had Grade 3 adverse events. The most common drug-related adverse events were hand-food syndrome, fatigue, high blood pressure, anorexia, and pneumothorax. Anlotinib had a certain curative effect on patients with advanced osteosarcoma and metastases after failure of standard treatment. The adverse events were mostly tolerable or relieved after treatment.

scholarly journals Impact of Baseline ALBI Grade on the Outcomes of Hepatocellular Carcinoma Patients Treated with Lenvatinib: A Multicenter Study

Cancers ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 952 ◽  
Author(s):  
Kazuomi Ueshima ◽  
Naoshi Nishida ◽  
Satoru Hagiwara ◽  
Tomoko Aoki ◽  
Tomohiro Minami ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Liver Function ◽  
Adverse Events ◽  
Objective Response Rate ◽  
Response Rate ◽  
Objective Response ◽  
Evaluation Criteria ◽  
Treatment Discontinuation ◽  
The Impact ◽  
Group 1

Background: This study investigated the impact of baseline liver function according to the Child–Pugh score and ALBI (albumin-bilirubin) grade on the outcomes of patients with unresectable hepatocellular carcinoma treated with lenvatinib. Methods: A total of 82 lenvatinib treated patients were included. The correlations of baseline liver function according to the Child–Pugh score and ALBI grade with treatment outcomes, including objective response rate per mRECIST (modified Response Evaluation Criteria in the Solid Tumor), time to treatment failure, treatment duration, and likelihood of treatment discontinuation due to adverse events, were assessed in patients with hepatocellular carcinoma treated with lenvatinib. Patients were divided into four groups: (1) Child–Pugh score 5 and ALBI grade 1 (group 1), (2) Child–Pugh score 5 and ALBI grade 2 (group 2), (3) Child–Pugh score 6 (group 3), and (4) Child–Pugh score ≥7 (group 4). Univariate and multivariate analyses were performed to identify the factors contributing to the objective response rate and likelihood of discontinuation due to adverse events. Results: Among the 82 patients analyzed, group 1 had the highest objective response rate (57.1%) and the lowest likelihood of treatment discontinuation because of adverse events (11.1%) among the four groups (p < 0.05 and p < 0.05). Multivariate analysis identified ALBI grade 1 and baseline AFP level <200 ng/mL as the significant predictors of a high objective response rate (p < 0.05 and p < 0.01), and confirmed that patients with ALBI grade 1 had the lowest probability of treatment discontinuation due to adverse events (p < 0.01). Conclusions: Patients with Child–Pugh score of 5 and ALBI grade 1 predicted a higher response rate and lower treatment discontinuation due to adverse events by lenvatinib treatment.

Phase II Results of Bendamustine in Combination with Rituximab in Relapsed Indolent and Mantle-Cell Non-Hodgkin’s Lymphoma.

Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 2710-2710 ◽  
Author(s):  
Richard H. Van der Jagt ◽  
Philip Cohen ◽  
Bruce D. Cheson ◽  
Anil Tulpule ◽  
Jordan A. Herst ◽  
...  
Keyword(s):  
Phase Ii ◽  
Objective Response Rate ◽  
Response Rate ◽  
Objective Response ◽  
Complete Response ◽  
Hodgkin's Lymphoma ◽  
Prior Chemotherapy ◽  
Non Hodgkin's Lymphoma ◽  
Mantle Cell ◽  
Grade 3

Abstract Objective: The objective of this study was to evaluate the efficacy and safety of bendamustine HCl (TREANDA®) in combination with rituximab in patients with relapsed non-Hodgkin’s lymphoma (NHL). Background: Bendamustine is a novel hybrid, alkylating agent with single-agent activity in multiple hematologic and solid tumors. It induces cell death via both apoptosis and the apoptosis-independent pathway of mitotic catastrophe. The combination of bendamustine and rituximab has been shown to exhibit a synergistic antitumor effect on NHL cells. Methods: This Phase II, multicenter study enrolled adult patients with relapsed, indolent B-cell or mantle-cell NHL who were not refractory to rituximab (defined as progression ≤6 months of last rituximab dose). Patients received rituximab 375 mg/m2 intravenously (IV) on day 1 and bendamustine 90 mg/m2 IV on days 2 and 3 of a 28-day cycle for 4 to 6 cycles. An additional dose of rituximab 375 mg/m2 IV was given 1 week before the first cycle of bendamustine and 4 weeks after the last cycle. Results: The intent-to-treat (ITT) population included 66 patients (59% men) with a median age of 60 years (range, 40–84). Indolent histologic phenotype was seen in 54 patients with the following histologic subtypes: follicular center cell (61%), small lymphocytic (15%), lymphoplasmacytic (3%), and marginal zone (3%); 18% had mantle-cell lymphoma (MCL). A total of 85% of patients had stage III/IV disease. These patients relapsed from a median of 1 prior chemotherapy (range: 0–5), with 56% having had prior treatment with rituximab. Patients with no prior chemotherapy relapsed following biologic therapy. In the ITT population, the overall objective response rate (ORR) was 94% (complete response [CR]/complete response unconfirmed [CRu], 41%; partial response [PR], 53%); 6% had stable disease. The ORR for the 12 MCL patients was 92% (CR/CRu, 42%; PR 50%). For all patients, the median duration of response and progression-free survival has not been reached after a median follow-up of 8.3 months (range, 0.14–31 months). Grade 3/4 neutropenia was seen in 41% of patients (7%, febrile neutropenia). Common nonhematologic toxicities (grade 1/2, grade 3, grade 4) were nausea (68%, 0%, 0%) and fatigue (53%, 5%, 0%); one patient had grade 3 sepsis. No alopecia was observed. Conclusions: Bendamustine administered in combination with rituximab produced a high objective response rate and was generally well tolerated in patients with relapsed indolent and mantle-cell NHL who were not refractory to rituximab. These results suggest that the combination of bendamustine and rituximab may be comparable in activity to R-CHOP, and further studies of this combination are warranted.

Brentuximab vedotin for relapsed or refractory non-Hodgkin lymphoma: Preliminary results from a phase II study.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 8070-8070
Author(s):  
Ranjana Advani ◽  
Yasuhiro Oki ◽  
Andrei R. Shustov ◽  
Laurie E. Grove ◽  
Nancy Bartlett
Keyword(s):  
Antitumor Activity ◽  
B Cell ◽  
Hodgkin Lymphoma ◽  
Objective Response Rate ◽  
Response Rate ◽  
Cell Lymphoma ◽  
Objective Response ◽  
B Cell Lymphoma ◽  
Brentuximab Vedotin ◽  
Non Hodgkin Lymphoma

8070 Background: Brentuximab vedotin is a CD30-directed antibody-drug conjugate approved for the treatment of Hodgkin lymphoma and systemic anaplastic large cell lymphoma (ALCL) after failure of other therapies. Based on the high objective response rate observed in patients with systemic ALCL, a type of non-Hodgkin lymphoma that is characterized by homogeneous CD30 expression, a study was initiated in other non-Hodgkin lymphomas that express the CD30 target. Methods: A phase 2 open-label single-arm study is underway in patients with relapsed or refractory CD30-positive non-Hodgkin lymphoma, excluding ALCL (NCT01421667). Brentuximab vedotin is administered IV at 1.8 mg/kg every 3 weeks until disease progression or unacceptable toxicity. The primary endpoint is objective response rate assessed by the Revised Response Criteria for Malignant Lymphoma (Cheson 2007). Tumor specimens are assessed by central lab in order to characterize the relationship of CD30 expression with antitumor activity. Results: Ten patients (age range 28–83; 5 M, 5 F) have enrolled to date. Diagnoses include diffuse large B-cell lymphoma (DLBCL, n=2), EBV-positive DLBCL of the elderly (n=3), primary mediastinal B-cell lymphoma (n=2), peripheral T-cell lymphoma NOS (n=2), and angioimmunoblastic T-cell lymphoma (AITL). Patients had received 1–6 prior chemotherapy regimens; 3 patients had prior stem cell transplants. Of 6 patients who have completed the cycle 2 response assessment, 2 attained complete remission, 1 with DLBCL (90% CD30+) and 1 with AITL (8% CD30+), 1 had stable disease, and 3 had progressive disease. Treatment-related serious adverse events observed to date were rash, febrile neutropenia, and mastoiditis. Conclusions: Preliminary results suggest that brentuximab vedotin may have antitumor activity in patients with relapsed or refractory CD30-expressing non-Hodgkin lymphomas, in addition to the efficacy previously observed in systemic ALCL. Updated study results will be presented.

scholarly journals Safety and Efficacy Analysis of Selinexor-Based Treatment in Multiple Myeloma, a Meta-Analysis Based on Prospective Clinical Trials

2021 ◽  
Vol 12 ◽  
Author(s):  
Yali Tao ◽  
Hui Zhou ◽  
Ting Niu
Keyword(s):  
Multiple Myeloma ◽  
Partial Response ◽  
Adverse Events ◽  
Response Rate ◽  
Complete Response Rate ◽  
Meta Analysis ◽  
Complete Response ◽  
Cochrane Central Register ◽  
Safety And Efficacy ◽  
Grade 3

Background: Selinexor (SEL) is an orally bioavailable, highly-selective, and slowly-reversible small molecule that inhibits Exportin 1. Preclinical studies showed that SEL had synergistic antimyeloma activity with glucocorticoids, proteasome inhibitors (PIs) and immunomodulators. The combination of selinexor and dexamethasone (DEX) has been approved in the United States for patients with penta-refractory multiple myeloma in July 2019. This meta-analysis aimed to investigate the safety and efficacy of selinexor based treatment in Multiple myeloma.Methods: We systematically searched the Medline (PubMed), Embase, Web of Science, Cochrane Central Register of Controlled Trials Library databases and ClinicalTrials.gov. Outcome measures of efficacy included overall response rate (ORR), clinical benefit rate (CBR), stringent complete response rate (sCR), complete response rate (CR), very good partial response (VGPR), partial response rate (PR), minimal response (MR), rate of stable disease (SDR), rate of progressive disease (PDR) and median progression-free survival (mPFS). Safety was evaluated by the incidences of all grade adverse events and Grade≥3 adverse events. The subgroup analysis was conducted to analyze the difference in different combination treatment regimens (SEL + DEX + PIs vs SEL + DEX).Results: We included six studies with 477 patients. The pooled ORR, CBR, sCR, CR, VGPR, PR, MR, SDR, and PDR were 43% (18–67%), 55% (32–78%), 5% (−2–13%), 7% (4–11%), 14% (5–24%), 23% (15–31%), 11% (8–14%), 26% (14–38%) and 14% (4–23%), respectively. SEL + DEX + PIs treatment had higher ORR (54 vs 24%, p = 0.01), CBR (66 vs 37%, p = 0.01), sCR (10 vs 2%, p = 0.0008), and VGPR (23 vs 5%, p &lt; 0.00001) compared to SEL + DEX treatment, and lower PDR (4 vs 23%, p &lt; 0.00001) and SDR (17 vs 37%, p = 0.0006). The pooled incidences of any grade and grade≥3 were 45 and 30% in hematological AEs, and in non-hematological AEs were 40 and 30%, respectively. The most common all grade (68%) and grade≥3 (54%) hematological AE were both thrombocytopenia. Fatigue was the most common all grade (62%) and grade≥3 (16%) non-hematological AE. Compared to SEL + DEX treatment, SEL + DEX + PIs treatment had lower incidences of hyponatremia (39 vs 12%, p &lt; 0.00001), nausea (72 vs 52%, p &lt; 0.00001), vomiting (41 vs 23%, p &lt; 0.0001), and weight loss (42 vs 17%, p = 0.03) in all grade AEs. Meanwhile, SEL + DEX + PIs treatment had lower incidences of anemia (36 vs 16%, p = 0.02), fatigue (20 vs 13%, p = 0.04), hyponatremia (22 vs 5%, p &lt; 0.0001) than SEL + DEX treatment in grade≥3 AEs.Conclusion: Our meta-analysis revealed that selinexor-based regimens could offer reasonable efficacy and tolerable adverse events in patients with multiple myeloma. SEL + DEX + PIs treatments had higher efficacy and lower toxicities than SEL + DEX.

scholarly journals Treatment of relapsed or refractory classical Hodgkin lymphoma with the anti-PD-1, tislelizumab: results of a phase 2, single-arm, multicenter study

Leukemia ◽  
2019 ◽  
Vol 34 (2) ◽  
pp. 533-542 ◽  
Author(s):  
Yuqin Song ◽  
Quanli Gao ◽  
Huilai Zhang ◽  
Lei Fan ◽  
Jianfeng Zhou ◽  
...  
Keyword(s):  
Hodgkin Lymphoma ◽  
Objective Response ◽  
Progression Free Survival ◽  
Complete Response ◽  
Chinese Patients ◽  
Cell Transplant ◽  
Upper Respiratory Tract ◽  
Phase 2 ◽  
Classical Hodgkin Lymphoma ◽  
Overall Response

Abstract Prognosis is poor for patients with relapsed/refractory (R/R) classical Hodgkin lymphoma (cHL) after failure of or who are ineligible for autologous stem cell transplant. We evaluated the efficacy and safety of tislelizumab, an investigational anti-PD-1 monoclonal antibody, in phase 2, single-arm study in Chinese patients with R/R cHL. The primary endpoint was overall response rate as assessed by an independent review committee, according to the Lugano 2014 Classification. Seventy patients were enrolled in the study and received at least one dose of tislelizumab. After median follow-up of 9.8 months, 61 (87.1%) patients achieved an objective response, with 44 (62.9%) achieving a complete response (CR). The estimated 9-month progression-free survival rate was 74.5%. Most common grade ≥3 adverse events (AEs) were upper respiratory tract infection and pneumonitis. Infusion-related reactions occurred in 27 (38.6%) patients, and 27 patients (38.6%) experienced an immune-related AE, the most common of which was thyroid dysfunction. Eleven (15.7%) patients experienced at least one treatment-emergent AE leading to dose interruption or delay. No deaths occurred due to AEs. Treatment of patients with R/R cHL with tislelizumab was generally well tolerated and resulted in high overall response and CR rates, potentially translating into more durable responses for these patients.

scholarly journals Pembrolizumab Monotherapy for Recurrent or Metastatic Cutaneous Squamous Cell Carcinoma: A Single-Arm Phase II Trial (KEYNOTE-629)

2020 ◽  
Vol 38 (25) ◽  
pp. 2916-2925 ◽  
Author(s):  
Jean-Jacques Grob ◽  
Rene Gonzalez ◽  
Nicole Basset-Seguin ◽  
Olga Vornicova ◽  
Jacob Schachter ◽  
...  
Keyword(s):  
Overall Survival ◽  
Squamous Cell Carcinoma ◽  
Adverse Events ◽  
Objective Response Rate ◽  
Response Rate ◽  
Objective Response ◽  
Progression Free Survival ◽  
Cutaneous Squamous Cell Carcinoma ◽  
Free Survival ◽  
Duration Of Response

PURPOSE Treatment options are limited for patients with recurrent and/or metastatic (R/M) cutaneous squamous cell carcinoma (cSCC); mortality rates exceed 70% in patients with distant metastases. Here, we present the first interim analysis of the R/M cSCC cohort from the 2-cohort—locally advanced and R/M—phase II KEYNOTE-629 study. PATIENTS AND METHODS Patients with R/M cSCC not amenable to surgery or radiation received pembrolizumab 200 mg every 3 weeks. The primary end point was objective response rate per RECIST v1.1. Secondary end points were duration of response, disease control rate, progression-free survival, overall survival, and safety. RESULTS At data cutoff (April 8, 2019), median follow-up of 105 enrolled patients in the R/M cohort was 11.4 months (range, 0.4 to 16.3 months). Objective response rate was 34.3% (95% CI, 25.3% to 44.2%; 4 complete responses, 32 partial responses), and disease control rate was 52.4% (95% CI, 42.4% to 62.2%). Median duration of response was not reached (range, 2.7 to 13.1+ months; ‘+’ refers to ongoing response at data cutoff). Median progression-free survival was 6.9 months (95% CI, 3.1 months to 8.5 months). Median overall survival was not reached (95% CI, 10.7 months to not reached). Treatment-related adverse events occurred in 66.7% of patients (n = 70), the most common of which were pruritus (n = 15; 14.3%), asthenia (n = 14; 13.3%), and fatigue (n = 13; 12.4%). Grade 3 to 5 treatment-related adverse events occurred in 5.7% (n = 6) of patients. One patient died of treatment-related cranial nerve neuropathy. CONCLUSION Pembrolizumab demonstrated effective antitumor activity; clinically meaningful, durable responses; and acceptable safety in primarily elderly patients with R/M cSCC, supporting its use in clinical practice. Pembrolizumab adverse events in this study were consistent with its established safety profile.

Envafolimab (KN035) in advanced tumors with mismatch-repair deficiency.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 3021-3021
Author(s):  
Lin Shen ◽  
Jian Li ◽  
Yanhong Deng ◽  
Weijie Zhang ◽  
Aiping Zhou ◽  
...  
Keyword(s):  
Adverse Events ◽  
Mismatch Repair ◽  
Objective Response Rate ◽  
Interim Analysis ◽  
Response Rate ◽  
Objective Response ◽  
Open Label ◽  
Prior Therapy ◽  
Previously Treated

3021 Background: KN035 is a novel fusion protein of humanized anti-PD-L1 single domain antibody and human IgG1 Fc formulated for subcutaneous injection. This open-label phase II study evaluated the safety and antitumor activity of KN035 in patients with advanced microsatellite instability-high/mismatch repair-deficient (MSI-H/dMMR) cancer. Methods: The study included patients aged ≥18 years with previously treated MSI-H/dMMR colorectal cancer (CRC) or other advanced solid tumors. MSI-H/dMMR status was assessed centrally for CRC and gastric cancer (GC) and locally for other tumors. KN035 was administered at 150 mg once weekly until progression, unacceptable toxicity, or withdrawal. Tumor assessments were every 8 weeks. The primary endpoint was the objective response rate per RECIST v1.1 by independent radiology review. The primary efficacy population (PEP) included patients with CRC who failed fluoropyrimidine (F), oxaliplatin (O), and irinotecan (I) plus those with advanced GC who had failed at least one prior systemic treatment. This was a planned interim analysis performed after the first 50 patients in the PEP had at least two on-study tumor assessments (PEPi). Results: As of December 17, 2019, 103 patients with MSI-H/dMMR advanced cancers were enrolled at 25 centers in China. The PEPi included 39 patients with CRC and 11 with GC, with a median follow-up of 7.5 months. The overall population included 65 patients with CRC (24 had prior therapy with F and O or I), 18 with GC, and 20 with other tumors, with a median follow-up of 6.7 months. The confirmed objective response rate was 30% (95% CI: 17.9%, 44.6%) in the PEPi, 54.2% (95% CI: 32.8%, 74.4%) in the CRC patients who had prior therapy with F and O or I, and 34.0% (95% CI: 24.9%, 44.0%) in the overall population. Of patients who had an objective response at the interim analysis, 80% of those in the PEPi, 84.6% of CRC patients who had prior therapy with F and O or I, and 85.7% of those in the overall population were still responding at the time of data cutoff. Median progression-free survival was 6.6 months in both the PEPi and the overall population. Median overall survival was not reached in either population. Fourteen (13.6%) patients had grade 3–4 treatment-related adverse events. No grade 5 treatment-related adverse events, pneumonitis, or colitis were reported. Local injection-site reactions, all grade 1 or 2, were reported in nine patients. Conclusions: Envafolimab demonstrated durable anti-tumor activity with a manageable safety profile in patients with previously treated advanced MSI-H/dMMR cancer. Clinical trial information: NCT03667170 .

Safety and efficacy of anti-PD-1 antibody dostarlimab in patients (pts) with mismatch repair deficient (dMMR) GI cancers.

2020 ◽  
Vol 38 (4_suppl) ◽  
pp. 218-218 ◽  
Author(s):  
Thierry Andre ◽  
Dominique Berton ◽  
Filippo G. De Braud ◽  
Giuseppe Curigliano ◽  
Wei Guo ◽  
...  
Keyword(s):  
Solid Tumors ◽  
Response Rate ◽  
Objective Response ◽  
Complete Response ◽  
Safety Analysis ◽  
Tumor Type ◽  
Safety And Efficacy ◽  
Efficacy Analysis ◽  
Duration Of Response ◽  
Gi Cancers

218 Background: Dostarlimab (TSR-042) is an investigational humanized anti-PD-1 monoclonal antibody that binds the PD-1 receptor, blocking the interaction with ligands PD-L1 and PD-L2. The ongoing GARNET trial (NCT02715284) is evaluating dostarlimab in pts with advanced solid tumors. Here we present safety and efficacy data from cohort F. Methods: Cohort F in the GARNET trial enrolled pts with dMMR or microsatellite instability high (MSI-H) non-endometrial solid tumors, the majority of which were GI in origin. Pts must have progressed following prior systemic therapy for advanced disease, assessed by independent central review (ICR). Pts received 500 mg dostarlimab Q3W for 4 cycles and 1000 mg Q6W thereafter. Objective response rate (ORR) and duration of response (DOR) were assessed by ICR per RECIST v1.1. Pts were included in the efficacy analysis if they received ≥1 dose of dostarlimab, had measurable disease at baseline, and ≥24 weeks of follow up. All pts who received ≥1 dose were included in the safety analysis. Results: 109 pts were included in the safety analysis, with 48 dMMR pts in the efficacy analysis. Of the 48 pts, 42 (88%) had GI tumors. Confirmed ORR in dMMR pts was 43.8% (95% CI: 29.5, 58.8), with a complete response rate of 8.3%. ORR was consistent across tumor type (Table). Median DOR was not reached. The probability of maintaining response at 12 months was 85.9%. Treatment-related adverse events (TRAEs) were reported in 55% of pts; 7.3% of pts experienced grade ≥3 TRAEs, including 1 each of adrenal insufficiency, rash, diarrhea, and fatigue. Treatment-related serious AEs (SAEs) were reported in 6 (5.5%) pts, and 2 pts (1.8%) discontinued dostarlimab due to a TRAE. No treatment-related deaths were reported. Conclusions: Dostarlimab demonstrated robust, durable antitumor activity in a cohort of dMMR solid tumor pts, the majority of whom had GI cancers, with an acceptable safety profile. Clinical trial information: NCT02715284. [Table: see text]

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