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1.
ClinicalTrials.gov; 12/02/2024; TrialID: NCT06268015
Clinical Trial Register | ICTRP | ID: ictrp-NCT06268015

Résumé

Condition:

Colorectal Cancer

Intervention:

Drug: Botensilimab;Drug: Balstilimab;Drug: Oxaliplatin;Drug: Leucovorin;Drug: Fluorouracil;Drug: Bevacizumab;Drug: Panitumumab

Primary outcome:

Disease control rate based on iRECIST at second restaging scan;Proportion of subjects with a best overall response of complete response or partial response according to iRECIST

Criteria:


Inclusion Criteria:

1. Male or female participants who are at least 18 years of age on the day of signing
informed consent.

2. Histologically confirmed metastatic and/or unresectable colorectal cancer without
liver metastasis or known or suspected bone or brain metastases.

a. Up to 3 patients with peritoneal carcinomatosis will be included. Other than those
three, subjects must only have lung, lymph node, and locoregional sites of disease
(primary tumor or serosal implant without carcinomatosis).

3. Microsatellite stable disease.

4. Subject must be willing to provide fresh biopsy of tumor lesion. Those who do not have
a tumor lesion that is safe and amenable to biopsy may still be enrolled.

5. ECOG performance status of 0 or 1.

6. No prior systemic therapy for colon cancer.

a. Subjects who received systemic therapy in the neoadjuvant or adjuvant setting may
be eligible with approval from the principal investigator.

7. Measurable disease per RECIST v1.1.

8. Female participants must not be pregnant or breastfeeding and meet at least one of the
following conditions:

1. Not a woman of childbearing potential (WOCBP).

2. A WOCBP must agree to use a reliable method of contraception during the treatment
period and for at least 180 days after the last dose of study treatment.

9. Male participants must practice effective contraceptive methods during the treatment
period, unless documentation of infertility exists.

10. Expected to survive >3 months per investigator assessment.

11. The participant (or legally acceptable representative if applicable) provides written
informed consent for the trial.

12. Adequate organ function as defined below. Specimens must have been collected within 7
days prior to the start of study treatment:

- Absolute neutrophil count (ANC) =1500/µL

- Platelets =100,000/µL

- Hemoglobin =9.0 g/dL or =5.6 mmol/L (without packed red blood cell transfusion
within the last 2 weeks)

- Creatinine OR measured or calculated creatinine clearance (GFR can be used in
place of CrCl) =1.5 x ULN OR =45 mL/min for participant with creatinine levels
>1.5 x institutional ULN (Creatinine clearance should be calculated per
institutional standard.)

- Total bilirubin =1.5 x ULN OR direct bilirubin =ULN for participants with total
bilirubin levels > 1.5 x ULN

- AST (SGOT) and ALT (SGPT) =2.5 x ULN

- International normalized ratio (INR) OR prothrombin time (PT) =1.5 x ULN unless
participant is receiving anticoagulant therapy as long as PT or aPTT is within
therapeutic range of intended use of anticoagulants

- Activated partial thromboplastin time (aPTT) =1.5 x ULN unless participant is
receiving anticoagulant therapy as long as PT or aPTT is within therapeutic range
of intended use of anticoagulants

Exclusion Criteria:

1. Prior therapy with an immune checkpoint inhibitor.

2. A WOCBP who is pregnant or breastfeeding or has a positive pregnancy test within 72
hours prior to receiving study treatment.

3. Not willing to use an effective method of birth control as defined in the protocol.

4. Known liver, bone, or CNS metastases and/or carcinomatous meningitis.

5. Diagnosis of other carcinomas within the last 2 years, except cured non-melanoma skin
cancer, treated thyroid cancer, curatively treated in-situ cervical cancer, or
localized prostate cancer treated curatively with no evidence of biochemical or
imaging recurrence.

6. Documented history of clinically significant autoimmune disease or syndrome that
requires systemic steroids or immunosuppressive agents. Subjects with vitiligo, type 1
diabetes mellitus, psoriasis not requiring systemic treatment, well-controlled
hypothyroidism, or conditions not expected to recur in the absence of an external
trigger are permitted to enroll.

7. Any history of chronic or autoimmune pancreatitis.

8. Known history of or any evidence of active, non-infectious pneumonitis.

9. Current use of medications specified by the protocol as prohibited for administration
in combination with study drug.

1. Patients with a condition requiring systemic treatment with either
corticosteroids (>10 mg daily prednisone equivalents) or other immunosuppressive
medications within 14 days prior to the start of study drug are not eligible.

2. Inhaled or topical steroids and adrenal replacement doses > 10 mg daily
prednisone equivalents are permitted in the absence of active autoimmune disease.

3. Corticosteroids administered as pre-medication for IV contrast allergy are also
allowed.

10. Received a live vaccine within 30 days prior to the start of study drug.

1. Seasonal influenza vaccines for injection are generally killed virus vaccines and
are allowed. However, intranasal influenza vaccines (e.g. Flu-Mist) are
live-attenuated vaccines, and are not allowed within 28 days of study treatment.

2. COVID-19 vaccines will be allowed. However, COVID-19 vaccines are not allowed
within 7 days of starting study drug treatment.

11. Recent or current active infectious disease requiring systemic antivirals,
antibiotics, or antifungals, or treatment within 2 weeks prior to the start of study
drug.

12. Concurrent severe and/or uncontrolled medical conditions, which may compromise
participation in the study, including impaired heart function or clinically
significant heart disease.

13. Major surgical procedure, open biopsy, or significant traumatic injury within 28 days
prior to the start of study drug (56 days for hepatectomy, open thoracotomy, major
neurosurgery) or anticipation of need for major surgical procedure during the course
of the study.

14. Serious, non-healing wound, ulcer, or bone fracture.

15. Patients with a history of organ or allogenic hematopoietic stem cell transplantation.

16. Partial or complete bowel obstruction within the last 3 months, signs/ symptoms of
bowel obstruction, or known radiologic evidence of impeding obstruction.

17. Refractory ascites defined as requiring 2 or more therapeutic paracenteses within the
last 4 weeks or =4 times within the last 90 days or =1 time within the last 2 weeks
prior to study entry or requiring diuretics within 2 weeks of study entry.

18. Positive tuberculosis test at screening.

2.
medrxiv; 2022.
Preprint Dans Anglais | medRxiv | ID: ppzbmed-10.1101.2022.11.16.22282411

Résumé

Background Deaths from opioids have increased in England and Wales, despite recognition of their harms. Coroners’ Prevention of Future Death reports (PFDs) provide important insights that may enable safer use and avert harms, yet these reports involving opioids have not been synthesised. We therefore aimed to identify opioid-related PFDs and explore concerns expressed by coroners to prevent future deaths. Methods In this systematic case series, we screened 3897 coronial PFDs dated between 01 July 2013 and 23 February 2022. These were obtained by web scraping the UK’s Courts and Tribunals Judiciary website to create an openly available database: https://preventabledeathstracker.net/ . PFDs were included when an opioid was implicated in the death. Included PFDs were descriptively analysed, and content analysis was used to assess concerns reported by coroners and responses to such concerns. Findings Opioids were involved in 219 deaths reported by coroners in PFDs (5·6% of all PFDs), equating to 4418 years of life lost (median 33 years/person). Morphine (29%), methadone (23%), and diamorphine (16%) were the most common implicated opioids. Coroners most frequently raised concerns regarding systems and protocols (52%) or safety issues (15%). These concerns were most often addressed to NHS organisations (51%), but response rates were low overall (47%). Interpretation Opioids could be used more safely and appropriately if coroners’ concerns in PFDs were addressed by national organisations such as NHS bodies, government agencies, and policymakers, as well as individual prescribing clinicians. Funding No funding was obtained for this study. The National Institute for Health Research (NIHR) School for Primary Care Research (SCPR) provided funding to establish the Preventable Deaths Tracker website: https://preventabledeathstracker.net/ Research in context Evidence before this study We conducted a systematic search of PubMed and Google Scholar to identify studies of deaths involving opioids in England and Wales and analyses of coroners’ Prevention of Future Death reports (PFDs). We found that deaths from opioids had increased in England and Wales. We also identified studies that have used PFDs to assess preventable deaths during the COVID-19 pandemic and deaths involving anticoagulants, medicines purchased online, medication errors and adverse drug reactions. However, no study to date has examined opioid-related PFDs. Added value of this study We analysed coroners’ concerns in opioid-related deaths for which they issued PFDs and found that on average three decades of life are lost per individual. We found that most opioid-related PFDs involved males (64%) and were caused by prescribed opioids (52%). Deaths involving illicit opioids (24%) were more likely to occur in younger males than deaths from prescribed opioids. Failures in systems and processes were most commonly found to have contributed to preventable opioid-related deaths, but more than half of such concerns remain unaddressed. Implications of all the available evidence Coroners’ PFDs offer important real-world insights into opioid-related deaths and can inform public health strategies that aim to improve the safe use of opioids. Future work should focus on disseminating these findings more widely and engaging with key stakeholders such as NHS organisations and government agencies, so that findings from PFDs can inform guidelines and be implemented in clinical practice.


Sujets)
COVID-19 , Mort
3.
medrxiv; 2022.
Preprint Dans Anglais | medRxiv | ID: ppzbmed-10.1101.2022.03.07.22272026

Résumé

ObjectivesAscertain patient eligibility status and describe coverage of antivirals and neutralising monoclonal antibodies (nMAB) as treatment for COVID-19 in community settings in England. DesignCohort study, approved by NHS England. SettingRoutine clinical data from 23.4m people linked to data on COVID-19 infection and treatment, within the OpenSAFELY-TPP database. ParticipantsNon-hospitalised COVID-19 patients at high-risk of severe outcomes. InterventionsNirmatrelvir/ritonavir (Paxlovid), sotrovimab, molnupiravir, casirivimab or remdesivir, administered in the community by COVID-19 Medicine Delivery Units. ResultsWe identified 102,170 non-hospitalised patients with COVID-19 between 11th December 2021 and 28th April 2022 at high-risk of severe outcomes and therefore potentially eligible for antiviral and/or nMAB treatment. Of these patients, 18,210 (18%) received treatment; sotrovimab, 9,340 (51%); molnupiravir, 4,500 (25%); Paxlovid, 4,290 (24%); casirivimab, 50 (<1%); and remdesivir, 20 (<1%). The proportion of patients treated increased from 8% (180/2,380) in the first week of treatment availability to 22% (420/1870) in the latest week. The proportion treated varied by high risk group, lowest in those with Liver disease (12%; 95% CI 11 to 13); by treatment type, with sotrovimab favoured over molnupiravir/Paxlovid in all but three high risk groups: Down syndrome (36%; 95% CI 31 to 40), Rare neurological conditions (46%; 95% CI 44 to 48), and Primary immune deficiencies (49%; 95% CI 48 to 51); by ethnicity, from Black (10%; 95% CI 9 to 11) to White (18%; 95% CI 18 to 19); by NHS Region, from 11% (95% CI 10 to 12) in Yorkshire and the Humber to 23% (95% CI 22 to 24) in the East of England); and by deprivation level, from 12% (95% CI 12 to 13) in the most deprived areas to 21% (95% CI 21 to 22) in the least deprived areas. There was also lower coverage among unvaccinated patients (5%; 95% CI 4 to 7), those with dementia (5%; 95% CI 4 to 6) and care home residents (6%; 95% CI 5 to 6). ConclusionsUsing the OpenSAFELY platform we were able to identify patients who were potentially eligible to receive treatment and assess the coverage of these new treatments amongst these patients. Targeted activity may be needed to address apparent lower treatment coverage observed among certain groups, in particular (at present): different NHS regions, socioeconomically deprived areas, and care homes. What is already known about this topicSince the emergence of COVID-19, a number of approaches to treatment have been tried and evaluated. These have mainly consisted of treatments such as dexamethasone, which were used in UK hospitals,from early on in the pandemic to prevent progression to severe disease. Until recently (December 2021), no treatments have been widely used in community settings across England. What this study addsFollowing the rollout of antiviral medicines and neutralising monoclonal antibodies (nMABs) as treatment for patients with COVID-19, we were able to identify patients who were potentially eligible to receive antivirals or nMABs and assess the coverage of these new treatments amongst these patients, in as close to real-time as the available data flows would support. While the proportion of the potentially eligible patients receiving treatment increased over time, rising from 8% (180/2,380) in the first week of the roll out to 22% (420/1870) in the last week of April 2022, there were variations in coverage between key clinical, geographic, and demographic subgroup. How this study might affect research, practice, or policyTargeted activity may therefore be needed to address lower treatment rates observed among certain geographic areas and key groups including ethnic minorities, people living in areas of higher deprivation, and in care homes.


Sujets)
Démence , Déficits immunitaires , Maladies du foie , COVID-19 , Maladies neurodégénératives
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