scholarly journals Tb-practecal: Study Protocol for a Randomised, Controlled, Open-label, Phase II-III Trial to Evaluate the Safety and Efficacy of Regimens Containing Bedaquiline and Pretomanid for the Treatment of Adult Patients With Pulmonary Multidrug Resistant Tuberculosis

Author(s):  
Catherine Berry ◽  
Philipp du Cros ◽  
Katherine Fielding ◽  
Suzanne Gajewski ◽  
Emil Kazounis ◽  
...  

Abstract BackgroundGlobally rifampicin-resistant tuberculosis disease affects around 460 000 people each year. Current recommended regimens are 9-24 months duration, have poor efficacy and carry significant toxicity. A shorter, less toxic and more efficacious regimen would improve outcomes for people with rifampicin-resistant tuberculosis. MethodsTB-PRACTECAL is an open-label, randomised, controlled, phase II/III non-inferiority trial evaluating the safety and efficacy of 24 week regimens containing bedaquiline and pretomanid to treat rifampicin resistant tuberculosis. Conducted in Uzbekistan, South Africa and Belarus, patients aged 15 and above with rifampicin resistant pulmonary tuberculosis and requiring a new course of therapy are eligible for inclusion irrespective of HIV status. In the first stage, equivalent to a phase IIB trial, patients are randomly assigned one of four regimens, stratified by site. Investigational regimens include oral bedaquiline, pretomanid and linezolid. Additionally, two of the regimens also include moxifloxacin (arm 1) and clofazimine (arm 2) respectively. Treatment is administered under direct observation for 24 weeks in investigational arms and 36 to 96 weeks in the standard of care arm. The second stage of the study is equivalent to a phase III trial, investigating the safety and efficacy of the most promising regimen/s. The primary outcome is the percentage of unfavourable outcomes at 72 weeks post randomisation. This is a composite of early treatment discontinuation, treatment failure, recurrence, lost to follow up and death. The study is conducted in accordance with ICH-GCP and full ethical approval was obtained from Médecins sans Frontières ethical review board, London School of Hygiene and Tropical Medicine ethical review board as well as ERBs and regulatory authorities at each site. DiscussionTB-PRACTECAL is an ambitious trial using adaptive design to accelerate regimen assessment and bring novel regimens that are effective and safe to patients quicker. The trial took a patient-centred approach, adapting to best practice guidelines throughout recruitment. The implementation faced significant challenges from the COVID-19 pandemic. The trial was terminated early for efficacy on the advice of the DSMB and will report on data collected up to end of recruitment and additionally, the planned final analysis at 72 weeks after end of recruitment. Trial registrationClinicaltrials.gov registration number NCT02589782

2020 ◽  
Vol 10 (5) ◽  
pp. 289-300 ◽  
Author(s):  
Hollis Lin ◽  
Madeline Merkel ◽  
Cecilia Hale ◽  
Jing L Marantz

Aim: Examine safety and pharmacodynamics of patisiran alone or with concomitant transthyretin stabilizers from the Phase II open-label extension study and safety and efficacy of patisiran in patients with prior transthyretin stabilizer use from the Phase III APOLLO study. Patients & methods: Post hoc analyses in patients with hereditary transthyretin-mediated amyloidosis with polyneuropathy. Results: Patisiran safety was consistent regardless of concomitant or prior transthyretin stabilizers. In the Phase II open-label extension (n = 27), transthyretin reduction was similar over 24 months, regardless of concomitant transthyretin stabilizers. In APOLLO (n = 225), patisiran-treated groups showed stabilization or improvements in neurological function (modified Neuropathy Impairment Score +7) and quality of life (Norfolk Quality of Life-Diabetic Neuropathy questionnaire) at 18 months, regardless of prior transthyretin stabilizers. Conclusion: Patients benefit from patisiran regardless of transthyretin stabilizer use.


2020 ◽  
Vol 38 (4_suppl) ◽  
pp. 621-621
Author(s):  
Tetsuhide Ito ◽  
Seiichi Hisamatsu ◽  
Akihiro Nakajima ◽  
Akira Shimatsu

621 Background: Lanreotide autogel 120mg (lanreotide) was approved in Japan in July 2017 for the treatment of gastroenteropancreatic neuroendocrine tumors (NETs) based on the results from an international phase III study (CLARINET study) and a Japanese single-arm phase II study. The CLARINET extension study demonstrated long-term efficacy and safety of lanreotide treatment; however, no Japanese patients were included in the study. To describe the safety and efficacy of long-term lanreotide treatment for NETs in Japanese patients, the final analysis of the Japanese phase II study and its extension study was performed. Methods: This open-label extension study (Study 002, JapicCTI-142698) enrolled patients who completed 48 weeks of treatment with 4-weekly subcutaneous lanreotide in an open-label phase II study in Japanese patients with NETs (Study 001, JapicCTI-132375). Study 002 had the same design as Study 001. Results: Of the 32 patients who started treatment with lanreotide, 17 completed Study 001 and enrolled in Study 002. In the safety analysis set (n = 17), 16 patients (94.1%) developed adverse events (AEs) that were considered drug-related (adverse drug reactions; ADRs), most commonly faeces pale (n = 5; 29.4%), injection site induration (n = 4; 23.5%), flatulence and diabetes mellitus (both n = 3; 17.6% each). No patient permanently discontinued lanreotide or died as a result of an AE. Four patients had a total of eight serious AEs; of these, two events of bile duct stones were considered to be ADRs. In the efficacy analysis set (n = 28), the median lanreotide exposure over Studies 001 and 002 was 52.7 weeks (range: 12–181 weeks). The best overall response was partial response in 2 patients (7.1%; reached at 60 and 108 weeks), stable disease in 20 patients (71.4%) and progressive disease in 6 patients (21.4%). Conclusions: No unexpected serious AEs developed during prolonged use of lanreotide. Lanreotide was effective over long-term treatment in Japanese patients with NETs. Clinical trial information: JapicCTI-132375, JapicCTI-142698.


PLoS ONE ◽  
2020 ◽  
Vol 15 (6) ◽  
pp. e0235381 ◽  
Author(s):  
Izabella Picinin Safe ◽  
Marcus Vinícius Guimarães Lacerda ◽  
Vitoria Silva Printes ◽  
Adriana Ferreira Praia Marins ◽  
Amanda Lia Rebelo Rabelo ◽  
...  

2017 ◽  
Vol 77 (2) ◽  
pp. 212-220 ◽  
Author(s):  
Dinesh Khanna ◽  
Christopher P Denton ◽  
Celia J F Lin ◽  
Jacob M van Laar ◽  
Tracy M Frech ◽  
...  

ObjectivesAssess the efficacy and safety of tocilizumab in patients with systemic sclerosis (SSc) in a phase II study.MethodsPatients with SSc were treated for 48 weeks in an open-label extension phase of the faSScinate study with weekly 162 mg subcutaneous tocilizumab. Exploratory end points included modified Rodnan Skin Score (mRSS) and per cent predicted forced vital capacity (%pFVC) through week 96.ResultsOverall, 24/44 (55%) placebo-tocilizumab and 27/43 (63%) continuous-tocilizumab patients completed week 96. Observed mean (SD (95% CI)) change from baseline in mRSS was –3.1 (6.3 (–5.4 to –0.9)) for placebo and –5.6 (9.1 (–8.9 to–2.4)) for tocilizumab at week 48 and –9.4 (5.6 (–8.9 to –2.4)) for placebo-tocilizumab and –9.1 (8.7 (–12.5 to –5.6)) for continuous-tocilizumab at week 96. Of patients who completed week 96, any decline in %pFVC was observed for 10/24 (42% (95% CI 22% to 63%)) placebo-tocilizumab and 12/26 (46% (95% CI 27% to 67%)) continuous-tocilizumab patients in the open-label period; no patients had >10% absolute decline in %pFVC. Serious infection rates/100 patient-years (95% CI) were 10.9 (3.0 to 27.9) with placebo and 34.8 (18.0 to 60.8) with tocilizumab during the double-blind period by week 48 and 19.6 (7.2 to 42.7) with placebo-tocilizumab and 0.0 (0.0 to 12.2) with continuous-tocilizumab during the open-label period.ConclusionsSkin score improvement and FVC stabilisation in the double-blind period were observed in placebo-treated patients who transitioned to tocilizumab and were maintained in the open-label period. Safety data indicated increased serious infections in patients with SSc but no new safety signals with tocilizumab.Trial registration numberNCT01532869; Results.


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. TPS4598-TPS4598
Author(s):  
Karie Runcie ◽  
Eric A. Singer ◽  
Moshe Chaim Ornstein ◽  
Christopher B. Anderson ◽  
Matthew Dallos ◽  
...  

TPS4598 Background: Despite recent therapeutic advancements in metastatic renal cell carcinoma (mRCC), only 5-10% of patients will achieve a complete response (CR) to therapy. Cytoreductive nephrectomy removes a large portion of the tumor which may be a source of immunosuppression driven by tumor cell-intrinsic factors in the tumor microenvironment. A pre-clinical orthotopic mouse model of aggressive metastatic triple negative breast cancer showed that neoadjuvant anti-PD-1 checkpoint inhibition generated enhanced and sustained antitumor immune responses with improved survival compared to adjuvant therapy (Liu J et al. Cancer Discov. 2016:1382). Clinical validation of improved outcomes with neoadjuvant compared to adjuvant immune checkpoint inhibitors has been demonstrated in trials for patients with non-small cell lung cancer, advanced melanoma, and recurrent glioblastoma (Forde, P.M., et al. N Engl J Med. 2018:1976; Amaria, R.N., et al Nat Med. 2018:1649; Cloughesy T.F., et al. Nat Med 2019:477). Recent data from a phase III trial in subjects with untreated mRCC, demonstrated the superiority of combination cabozantinib and nivolumab over sunitinib and established a new standard of care for mRCC (Choueiri T.K., et al. Annals of Onc, 2020;31 (suppl; abstr 6960). We hypothesize that if tumor specific immune responses to immunotherapy are greatest prior to nephrectomy, then treatment with nivolumab (nivo) and cabozantinib (cabo) prior to cytoreductive nephrectomy will lead to maximal peripheral and intra-tumoral specific immune responses and higher rates of CR during the course of treatment. Methods: This is an open label phase II, multicenter clinical trial of combination nivo and cabo prior to cytoreductive nephrectomy in patients with mRCC (NCT04322955). 48 treatment- naïve subjects with radiological or histological diagnosis of mRCC will be enrolled with the primary endpoint of CR rate according to RECIST version 1.1. Subjects will receive cabo (40mg) daily and nivo (480mg) every 4 weeks for 12 weeks prior to nephrectomy and a 3+3 design will be used to evaluate the safety of the interval (21 or 14 days) between the discontinuation of cabo and nephrectomy. Post-operatively, subjects will resume treatment with cabo and nivo until evidence of disease progression. Secondary endpoints include median size reduction of the primary tumor, response rate, PFS, OS, and surgical outcomes using the Clavien-Dindo classification system. Tissue based assays will quantify treatment related changes in the renal tumor microenvironment through polychromatic immunofluorescence, single cell RNA sequencing of the biopsy and nephrectomy specimen, and multiplex assessment of circulating serum cytokines. Dynamic contrast-enhanced MRI will be performed in a subset of subjects to assess radiologic correlates of response. The study is currently open to enrollment. Clinical trial information: NCT04322955.


2021 ◽  
Vol 39 (6_suppl) ◽  
pp. TPS371-TPS371
Author(s):  
Karie Runcie ◽  
Eric A. Singer ◽  
Moshe Chaim Ornstein ◽  
Christopher B. Anderson ◽  
Matthew Dallos ◽  
...  

TPS371 Background: Despite recent therapeutic advancements in metastatic renal cell carcinoma (mRCC), only 5-10% of patients will achieve a complete response (CR) to therapy. Cytoreductive nephrectomy removes a large portion of the tumor which may be a source of immunosuppression driven by tumor cell-intrinsic factors in the tumor microenvironment. A pre-clinical orthotopic mouse model of aggressive metastatic triple negative breast cancer showed that neoadjuvant anti-PD-1 checkpoint inhibition generated enhanced and sustained antitumor immune responses with improved survival compared to adjuvant therapy (Liu J et al. Cancer Discov. 2016:1382). Clinical validation of improved outcomes with neoadjuvant compared to adjuvant immune checkpoint inhibitors has been demonstrated in trials for patients with non-small cell lung cancer, advanced melanoma, and recurrent glioblastoma (Forde, P.M., et al. N Engl J Med. 2018:1976; Amaria, R.N., et al Nat Med. 2018:1649; Cloughesy T.F., et al. Nat Med 2019:477). Recent data from a phase III trial in subjects with untreated mRCC, demonstrated the superiority of combination cabozantinib and nivolumab over sunitinib and established a new standard of care for mRCC (Choueiri T.K., et al. Annals of Onc, 2020;31 (suppl; abstr 6960). We hypothesize that if tumor specific immune responses to immunotherapy are greatest prior to nephrectomy, then treatment with nivolumab (nivo) and cabozantinib (cabo) prior to cytoreductive nephrectomy will lead to maximal peripheral and intra-tumoral specific immune responses and higher rates of CR during the course of treatment. Methods: This is an open label phase II, multicenter clinical trial of combination nivo and cabo prior to cytoreductive nephrectomy in patients with mRCC (NCT04322955). 48 treatment- naïve subjects with radiological or histological diagnosis of mRCC will be enrolled with the primary endpoint of CR rate according to RECIST version 1.1. Subjects will receive cabo (40mg) daily and nivo (480mg) every 4 weeks for 12 weeks prior to nephrectomy and a 3+3 design will be used to evaluate the safety of the interval (21 or 14 days) between the discontinuation of cabo and nephrectomy. Post-operatively, subjects will resume treatment with cabo and nivo until evidence of disease progression. Secondary endpoints include median size reduction of the primary tumor, response rate, PFS, OS, and surgical outcomes using the Clavien-Dindo classification system. Tissue based assays will quantify treatment related changes in the renal tumor microenvironment through polychromatic immunofluorescence, single cell RNA sequencing of the biopsy and nephrectomy specimen, and multiplex assessment of circulating serum cytokines. Dynamic contrast-enhanced MRI will be performed in a subset of subjects to assess radiologic correlates of response. The study is currently open to enrollment. Clinical trial information: AAAS6927 .


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 4096-4096
Author(s):  
Sophie Cousin ◽  
Carine A. Bellera ◽  
Jean Philippe Guégan ◽  
Thibault Mazard ◽  
Carlos A. Gomez-Roca ◽  
...  

4096 Background: Regorafenib (R) has shown promising efficacy in patients (pts) with BTC refractory to standard chemotherapy. Anti-PD1/PD-L1 antibodies have only limited clinical activity. Synergy between R and anti–PD-1/PD-L1 antibodies has been shown in pre-clinical solid tumor models. Methods: This is a single-arm open-label multicentric phase II trial (Bayesian adaptive design) assessing the efficacy and safety of R (160 mg QD 3weeks/4) + avelumab (A) (10 mg/kg every 2 weeks) combination in BTC pts. The primary endpoint was the objective response rate under treatment, based on central review according to RECIST 1.1. Secondary endpoints included: 1-year progression free survival (PFS), 1-year overall survival (OS), and Safety using NCI-CTCAE v5.0. Correlative studies were planned from pts tumor samples obtained at baseline. Results: Between Nov. 2018 and Nov. 2019, 34 BTC pts were enrolled in 4 centers. Median age was 63 (range 36 – 80). Median follow-up was 9.8 months. Median number of previous treatment lines for metastatic or locally advanced disease was: 2 (range 1 – 4). Twenty-nine (85.3%) pts experienced at least 1 dose modification or treatment interruption of R or A due to an adverse event (AE) related to the treatment. The most common grade 3/4 AEs were : Hypertension (17.6%), Fatigue (14.7%), and maculo-papular rash (11.8%). No death was related to the treatment. Among the 29 pts with at least one imaging tumor assessment, 4 (13.8%) achieved a partial response, and 11 (37.9%) demonstrated stable disease including 10 (34.5%) pts with tumor shrinkage. Fourteen pts (48.3%) had progressive disease. The median PFS and OS were 2.5 months (95%CI 1.9 – 5.5) and 11.9 months (95%CI 6.2 – NA) respectively. Baseline tumor samples were available for 27 pts. High IDO and PD-L1 expression at baseline was associated with better outcome. Conclusions: The R+A combination is associated with significant anti-tumor activity with promising survival rates in this heavily pre-treated population. Full Biomarkers analyses will be presented at the meeting. Clinical trial information: NCT03475953.


2015 ◽  
Vol 52 (2) ◽  
pp. 161-164 ◽  
Author(s):  
Thales Paulo BATISTA ◽  
Mário Rino MARTINS ◽  
Euclides Dias MARTINS-FILHO ◽  
Rogerio Luiz dos SANTOS

Background The Extensive Intraoperative Peritoneal Lavage (EIPL) has been proposed as a practical prophylactic strategy to decrease the risk of peritoneal metastasis in gastric cancer. Objective To explore the safety and efficacy of the EIPL in our locally advanced gastric cancer patients. Methods This study is an open-label, double-center, single-arm phase II clinical trial developed at two tertiary hospitals from Recife (Pernambuco, Brazil). Results The study protocol was prematurely closed due to slow accrual after only 16 patients had been recruited to participate. Eight of them were excluded of the protocol study during the laparotomy, whereas four cases were also excluded from the per-protocol analysis. Two patients had died in hospital before 30 days and six were alive with no evidence of cancer relapses after a follow-up ranging from five to 14,2 months (median of 10.6 months). In the intention-to-treat analysis, three of eight patients suffered of gastrointestinal leakages and two of them had died. On a per-protocol basis, two of four patients presented this type of postoperative complication and one of them had died. All deaths occurred as a somewhat consequence of gastrointestinal leakages. Conclusion We could not make any conclusion about the safety and efficacy of the EIPL, but the possibility of this approach might increase the rate of gastrointestinal leakage is highlighted.


2021 ◽  
Vol 6 ◽  
pp. 221
Author(s):  
Sarah Kiguli ◽  
Peter Olopot-Olupot ◽  
Florence Alaroker ◽  
Charles Engoru ◽  
Robert O. Opoka ◽  
...  

Background: To prevent poor long-term outcomes (deaths and readmissions) the integrated global action plan for pneumonia and diarrhoea recommends under the ‘Treat’ element of Protect, Prevent and Treat interventions the importance of continued feeding but gives no specific recommendations for nutritional support. Early nutritional support has been practiced in a wide variety of critically ill patients to provide vital cell substrates, antioxidants, vitamins, and minerals essential for normal cell function and decreasing hypermetabolism. We hypothesise that the excess post-discharge mortality associated with pneumonia may relate to the catabolic response and muscle wasting induced by severe infection and inadequacy of the diet to aid recovery. We suggest that providing additional energy-rich, protein, fat and micronutrient ready-to-use therapeutic feeds (RUTF) to help meet additional nutritional requirements may improve outcome. Methods: COAST-Nutrition is an open, multicentre, Phase II randomised controlled trial in children aged 6 months to 12 years hospitalised with suspected severe pneumonia (and hypoxaemia, SpO2 <92%) to establish whether supplementary feeds with RUTF given in addition to usual diet for 56-days (experimental) improves outcomes at 90-days compared to usual diet alone (control). Primary endpoint is change in mid-upper arm circumference (MUAC) at 90 days and/or as a composite with 90-day mortality. Secondary outcomes include anthropometric status, mortality, readmission at days 28 and 180. The trial will be conducted in four sites in two countries (Uganda and Kenya) enrolling 840 children followed up to 180 days. Ancillary studies include cost-economic analysis, molecular characterisation of bacterial and viral pathogens, evaluation of putative biomarkers of pneumonia, assessment of muscle and fat mass and host genetic studies.   Discussion: This study is the first step in providing an option for nutritional support following severe pneumonia and will help in the design of a large Phase III trial. Registration: ISRCTN10829073 (6th June 2018) PACTR202106635355751 (2nd June 2021)


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