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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04351503
Other study ID # 2020-00769; qu20Egli2
Secondary ID
Status Completed
Phase
First received
Last updated
Start date April 9, 2020
Est. completion date July 31, 2022

Study information

Verified date May 2024
Source University Hospital, Basel, Switzerland
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

This study is to gain critical knowledge to understand the factors influencing the outcome of a pandemic virus within the city of Basel.


Description:

In order to evaluate the impact of the new SARS-CoV-2 this study analyzes the clinical outcomes of patients with a confirmed SARS-CoV-2 infection using a systems approach. The objective is to integrate various datasets covering clinical and non-clinical variables. Beside host factors such as age, gender, comorbidities and treatments, microbiological factors, such as SARS-CoV-2 viral loads using a (semi)-quantitative nucleic acid test (QNAT), genome sequences, and virus-specific immune responses are included. In addition, epidemiological aspects within the city, such as case numbers in specific areas and resulting saturation of the healthcare system (e.g. patients being hospitalized, and ICU occupancy), will be analyzed. Further epidemiological data will be generated from biological measurements from all available serum and respiratory samples (leftover material) collected from February 2020 to November 2021 over two seasons as it is likely that a second wave will be circulating in the following winter 2020/2021. In this project, three retrospective studies will be conducted: Study A: retrospective observational case-control study to predict the clinical outcomes and features of SARS-CoV-2 infection. The clinical outcomes of SARSCoV-2 infected patients (cases) and non-SARS-CoV-2 infected patients with or without other respiratory viruses (control) will be explored. Study B: retrospective observational epidemiological surveillance study to describe the epidemiology of the SARS-CoV-2 outbreak; description of the epidemiological spread of the new SARS-CoV-2 virus in people living in Basel. Study C: retrospective observational viral evolution study whereby respiratory materials and matching blood and tissue materials will be used to perform whole genome sequencing to study pathogen evolution between hosts as well as in-host evolution. No additional material will be collected. Virus genomes obtained during the expanding, peak, and contracting phase of the pandemic will be compared to identify predictors of viral evolution, viral loads, majority species, immune escape variants, and the implications for clinical outcome, diagnostic detection, treatment, and vaccine design. Correlating specifically the occurrence and rate and variants of SARS-CoV-2 re-infections in city blocks of high activity and exposure risk will be of interest. Study D: retrospective observational treatment outcome study whereby clinical outcome, laboratory, radiological, pulmonary function and virological data as well as data on immune responses will be used to study safety and efficacy of different treatment modalities. All data and material will be collected on a routine basis during hospitalization and in the outpatient setting to assess the safety and effect of different treatment modalities on outcome.


Recruitment information / eligibility

Status Completed
Enrollment 126586
Est. completion date July 31, 2022
Est. primary completion date July 31, 2022
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group N/A and older
Eligibility Inclusion Criteria: - Study A: All patients being tested for SARS-CoV-2 at the University Hospital Basel (USB) and with residency in Basel (Basel-Stadt, Riehen, and Bettingen) will be included for clinical outcome evaluation. All age groups will be included. In addition, non-clinical data such as epidemiological and hospital associated data of all people living in Basel but not necessarily tested at the University Hospital Basel will be included - Study B: Epidemiological data and serum and respiratory samples across all Age groups from people with residency in Basel (Basel-Stadt, Riehen, and Bettingen) with and without confirmed SARS-CoV-2 infection will be included - Study C: SARS-CoV-2 viral genome analysis will be conducted from all patients tested positive for SARS-CoV-2 genome by NAT at the University Hospital Basel and living in Basel (Basel-Stadt, Riehen, and Bettingen). In addition, viral genome analysis will be conducted from all people tested positive for SARS-CoV-2 genome by NAT living in Basel by the mentioned study partners. All Age groups will be included. - Patients with cleared SARS-CoV-2 infection coming for plasma donation will be included to describe immunological response after successfully cleared infection. Exclusion Criteria: - documented refusal of the general consent or an available/known written or oral statement against Research - People, who are tested at the USB, with residency outside of Basel (Basel-Stadt, Riehen, and Bettingen)

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Study A
Study A: collection of data of clinical outcomes and features of SARS-CoV-2 infection. Demographical, clinical, microbiological, laboratory, epidemiological and hospital-associated data will be analyzed. For this study part, only patients with a visit at the University Hospital Basel will be included in order to access patient charts.
Study B
Study B: collection of epidemiological surveillance data to describe the epidemiology of the SARS-CoV-2 outbreak. The epidemic transmission of Influenza viruses in the City of Basel serves as an important reference to identify similarities and differences to the pandemic SARS-CoV-2 situation. In addition data collected during the Influenza projects - in particular data on statistical blocks of the city, e.g. population density, income and living space will be re-used. Already collected and stored samples such as serum and respiratory material (leftover material) will be (re-) used.
Study C
Study C: data collection for viral evolution. Respiratory materials and matching blood and tissue materials will be used to perform whole genome sequencing to study pathogen evolution between hosts as well as in-host evolution. No additional material will be collected.
Study D
Study D: collection of safety and efficacy data of different treatment modalities. Currently the following treatments are considered as part of the treatment: Lopinavir/Ritonavir Hydroxychloroquine Tocilizumab Eculizumab Ruxolitinib Remdesivir Treatment with convalescent plasma blood count, blood chemistry and pulmonary function test (collected on a routine basis during hospitalization and in the outpatient setting).

Locations

Country Name City State
Switzerland Viollier AG Allschwil
Switzerland Biozentrum University of Basel Basel
Switzerland Department of Biosystems Science and Engineering ETH Zurich Basel
Switzerland sciCore University of Basel Basel
Switzerland University Hospital Basel Basel
Switzerland Swiss Institute of Bioinformatics Geneva

Sponsors (4)

Lead Sponsor Collaborator
University Hospital, Basel, Switzerland Leonhard Med IT ETH Zurich, sciCORE University of Basel, Swiss Institute of Bioinformatics

Country where clinical trial is conducted

Switzerland, 

References & Publications (4)

Bruningk SC, Klatt J, Stange M, Mari A, Brunner M, Roloff TC, Seth-Smith HMB, Schweitzer M, Leuzinger K, Sogaard KK, Albertos Torres D, Gensch A, Schlotterbeck AK, Nickel CH, Ritz N, Heininger U, Bielicki J, Rentsch K, Fuchs S, Bingisser R, Siegemund M, P — View Citation

Peter JK, Wegner F, Gsponer S, Helfenstein F, Roloff T, Tarnutzer R, Grosheintz K, Back M, Schaubhut C, Wagner S, Seth-Smith HMB, Scotton P, Redondo M, Beckmann C, Stadler T, Salzmann A, Kurth H, Leuzinger K, Bassetti S, Bingisser R, Siegemund M, Weisser — View Citation

Sava M, Sommer G, Daikeler T, Woischnig AK, Martinez AE, Leuzinger K, Hirsch HH, Erlanger T, Wiencierz A, Bassetti S, Tamm M, Tschudin-Sutter S, Stoeckle M, Pargger H, Siegemund M, Boss R, Zimmer G, Vu DL, Kaiser L, Dell-Kuster S, Weisser M, Battegay M, H — View Citation

Seth-Smith H, Vesenbeckh S, Egli A, Ott S. SARS-CoV-2 in an immunocompromised host: convalescent plasma therapy and viral evolution elucidated by whole genome sequencing. BMJ Case Rep. 2023 Dec 9;16(12):e255255. doi: 10.1136/bcr-2023-255255. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Identification of factors associated with (i) infection (binary, yes/no), (ii) hospitalization (binary, yes/no), (iii) requirement for ICU treatment (binary, yes/no) Identification of factors associated with (i) infection (binary, yes/no), (ii) hospitalization (binary, yes/no), (iii) requirement for ICU treatment (binary, yes/no) at baseline
Primary duration of hospitalization (in days) duration of hospitalization (in days) at baseline
Primary duration of Intensive Care Unit (ICU) stay (in days) duration of ICU stay (in days) at baseline
Primary in-hospital mortality (binary, yes/no) in-hospital mortality (binary, yes/no) at baseline
Primary Number of infected cases within the city of Basel Number of infected cases confirmed either by nucleic acid test (NAT) or by positive serology within the city of Basel expressed as incidence per statistical block at baseline
Primary whole genome sequencing to study pathogen evolution (number, type, and complexity of viral genome) Number, type, and complexity of viral genome variants and quasispecies identified by deep-sequencing during rise, peak, and contraction of the pandemic in patients and geographic areas. at baseline
Primary Identification which treatment modality is associated with adverse events (binary, yes/no) Identification which treatment modality is associated with adverse events (binary, yes/no) at baseline
Primary Identification which treatment modality is associated with pulmonary recovery (binary, yes/no) Identification which treatment modality is associated with pulmonary recovery(binary, yes/no) after 30 and 90 days