COVID-19 studies

When the novel coronavirus pandemic emerged in early 2020, Kaiser Permanente Southern California research teams responded quickly to study potential effects of chronic conditions on COVID-19 patients, develop risk assessments, and study the efficacy of treatments for COVID-19. As the pandemic continues, researchers and physicians continue to collaborate on clinical trials and other studies to better understand the disease, its effects, and potential vaccines and treatments.

A Phase 3 Randomized Study to Evaluate the Safety and Antiviral Activity of Remdesivir (GS-5734™) in Participants with Severe COVID-19

The purpose of this study is to provide remdesivir (RDV) to participants with severe COVID-19. The primary objective of this study is to evaluate the efficacy of 2 RDV regimens with respect to clinical status assessed by a 7-point ordinal scale on Day 14. The secondary objective of this study is to evaluate the safety and tolerability of RDV.

Principal Investigator:

William J. Towner, MD, FACP, FIDSA

Funding Source:

Gilead Sciences, Inc.

Funding Years:

2020 - 2021

Research Categories:

A risk-varying and perturbed self-controlled case series design for assessing the safety of COVID-19 vaccines in a large health care system

In this project, we will develop new statistical approaches to detect serious adverse events that can happen after vaccination, and we will apply these new approaches to existing data from a large health care system to evaluate COVID-19 vaccine safety.

Principal Investigator:

Stanley Xu, PhD

Funding Source:

National Institute of Allergy and Infectious Diseases (NIAID)

Funding Years:

2022 - 2026

A virtual network to investigate the clinical epidemiology of influenza and the effectiveness of influenza vaccines

The VISION Vaccine Effectiveness Network is a research collaboration between CDC, Westat, and multiple sites with integrated clinical, laboratory, and vaccination records in the United States that evaluate how well seasonal influenza (flu) vaccines protect people against flu, RSV vaccines protect people against RSV, and COVID-19 vaccines protect against COVID-19. VISION also assesses information on severe outcomes among people hospitalized with laboratory-confirmed flu and COVID-19 including intensive care unit (ICU) admission, invasive mechanical ventilation, and in-hospital death. These data help inform how well flu vaccines, RSV vaccines, and COVID-19 vaccines protect against severe outcomes.

Principal Investigator:

Sara Yee Tartof, PhD, MPH

Funding Source:

Centers for Disease Control and Prevention (CDC)

Funding Years:

2023 - 2027

Clinical evaluation of saliva and anterior nares swabs for COVID-19 testing

The objective of this study is to determine if patient-collected saliva or nares swabs are as sensitive as provider-collected nasopharyngeal/oropharyngeal swabs using the Roche SARS-CoV-2 RT-PCR test, in order to inform strategies for expanding COVID-19 testing.

Funding Source:

Regional Research Committee (RRC)

Funding Years:

2020

Research Categories:

Comparing Strategies for Implementing Primary HPV Testing for Routine Cervical Cancer Screening

The major goal of this project is to compare two implementation strategies to facilitate adoption of primary HPV testing for routine cervical cancer screening measured by patient-, provider- and system-centered outcomes. A sub-analysis and survey data collection will evaluate the impact of the COVID pandemic on this practice change and cervical cancer screening.

Principal Investigator:

Chun Chao, PhD, MS

Funding Source:

Patient-Centered Outcomes Research Institute (PCORI)

Funding Years:

2019 - 2023

COVID-19 Population Based evaluation

This proposed surveillance project to be conducted in the VSD will utilize electronically stored health care administrative data using a combination of ICD-10 and/or internal diagnostic codes (DxID codes) to identify patients with COVID-19 and indicators of severe illness (e.g., leading to hospitalization, ICU admission, mechanical ventilation or death). In addition, health care diagnostic and procedure codes will be used to identify high risk conditions.

Site Principal Investigator:

Hung Fu Tseng, PhD, MPH

Funding Source:

Centers for Disease Control and Prevention (CDC)

Funding Years:

2020 - 2021

Research Categories:

COVID-19 Sample-Swab Collection Study

Collect positive SARS-CoV-2 specimens and conduct sequencing to identify variant types.

Principal Investigator:

Sara Yee Tartof, PhD, MPH

Funding Source:

Pfizer, Inc.

Funding Years:

2021 - 2024

Research Categories:

,

Development and application of a smartphone-based data collection method for adverse events following SARS-CoV-2 vaccination in the Vaccine Safety Datalink

The proposed project will involve designing, piloting, evaluating, and expanding an SMS- and web-based Vaccine Safety Monitoring (VSM) system.

Principal Investigator:

Sara Yee Tartof, PhD, MPH

Funding Source:

Centers for Disease Control and Prevention (CDC)

Funding Years:

2021 - 2024

Effectiveness of pneumococcal conjugate vaccine against severe clinical outcomes of coronavirus disease 2019 (COVID-19) among adults: a cohort study

The objectives of this study were to assess the effectiveness of PCV13 against severe COVID-19 outcomes and to assess the burden of PCV13-preventable illness attributable to COVID-19.

Principal Investigator:

Sara Yee Tartof, PhD, MPH

Funding Source:

Pfizer, Inc.

Funding Years:

2020 - 2021

Enhancing outbreak analytics and forecasting with electronic health records

This study aims to create a more effective method of modeling infectious diseases that addresses limitations learned as a result of the COVID-19 pandemic and its public health impact. Its methods adapt and create modeling and data integration methods, software, clinical data, and training to achieve this goal. This includes addressing multiple challenges such as sharing and coordinating data access, increasing access understanding of machine learning (ML), understanding the true patterns of disease transmission, having a sample to represent all infections and timelines, and reducing the gap between transmission and diagnosis. Through multiple strategies, this study will provide a more comprehensive approach to data modeling in an effort to prepare for future outbreaks.

Principal Investigator:

Sara Yee Tartof, PhD, MPH

Funding Source:

Centers for Disease Control and Prevention (CDC)

Funding Years:

2023 - 2028

Research Categories:

,

EPI-ZOSTER-089 Effect of RZV on reducing the risk of hospitalization due to COVID-19

The Recombinant Adjuvanted Zoster Vaccine (RZV, Shingrix®) was approved in 2017 by the FDA for the prevention of herpes zoster (HZ) in adults ages 50 years and older. With a potent adjuvant system, it is hypothesized that RZV could induce trained innate immunity. As the first approved and widely used vaccine with the novel AS01 adjuvant system, we are investigating the potential non-specific effect of RZV against COVID-19.

Principal Investigator:

Hung Fu Tseng, PhD, MPH

Funding Source:

GlaxoSmithKline, LLC

Funding Years:

2021 - 2022

Evaluating Influenza and COVID-19 Vaccine Effectiveness in Preventing Laboratory Confirmed Illness in a Southern California Population

The current study proposes to evaluate the VE for influenza as well as the VE for COVID-19 both before and after the flu season as well as concurrently with influenza.

Principal Investigator:

Sara Yee Tartof, PhD, MPH

Funding Source:

Centers for Disease Control and Prevention (CDC)

Funding Years:

2021 - 2023

Feasibility Assessment prior to conducting a BNT162b2 Vaccine Effectiveness case-control study at Kaiser Permanente Southern California

The objectives of this large retrospective data-only study are to use two parallel study designs to assess the VE of Pfizer COVID-19 vaccine against 2 primary endpoints: 1.) Severe outcomes (COVID-19 associated hospitalization, ICU admission, and death); and 2.) Outpatient laboratory-confirmed COVID-19 diagnosis.

Principal Investigator:

Sara Yee Tartof, PhD, MPH

Funding Source:

Pfizer, Inc.

Funding Years:

2020 - 2024

Impact of nirmatrelvir-ritonavir on changes in healthcare utilization and frailty following COVID-19: a difference-in-difference analysis

The study aims to estimate the impact of nirmatrelvir-ritonavir on changes in healthcare utilization and frailty following COVID-19. We will use a difference-in-difference design to compare the changes before and after COVID-19 between those who did and did not receive nirmatrelvir-ritonavir.

Principal Investigator:

Sara Yee Tartof, PhD, MPH

Funding Source:

Pfizer, Inc.

Funding Years:

2024 - 2025

Pfizer COVID-19 BNT162b2 Vaccine Effectiveness Study

Collect positive SARS-CoV-2 specimens and conduct sequencing to identify variant types.

Principal Investigator:

Sara Yee Tartof, PhD, MPH

Funding Source:

Pfizer, Inc.

Funding Years:

2021 - 2024

Real World Evidence of Paxlovid at Kaiser Permanente Southern California

This project will describe characteristics associated with prescribing and dispensing of individuals receiving Paxlovid and not receiving Paxlovid among SARS-CoV-2 positive individuals.

Principal Investigator:

Sara Yee Tartof, PhD, MPH

Funding Source:

Pfizer, Inc.

Funding Years:

2022 - 2024

Real-World Study of Effectiveness of Moderna COVID-19 Vaccine under Emergency Use Authorization and Subsequent Licensure

An observational cohort study to evaluate vaccine effectiveness of Moderna COVID-19 vaccine in preventing COVID-19 diagnosis and severe COVID-19 disease.

Principal Investigator:

Hung Fu Tseng, PhD, MPH

Funding Source:

ModernaTX, Inc.

Funding Years:

2020 - 2026

The Comparative effectiveness of Warfarin and New Oral Anticoagulants for the Extended Treatment of Venous Thromboembolism

The overall goal of this project is to provide information on the benefits and harms comparing different treatment options for the extended treatment of VTE, information that can be used by clinicians and patients in deciding on the optimal treatment strategy.
COVID-19-Related Project Enhancement
Recent studies have reported that COVID-19 is associated with abnormal coagulation profiles and may predispose patients to VTE and other types of thrombotic events. The goals of this study are to determine the risk of VTE following COVID-19 hospitalization and whether the risk of post-hospitalization VTE varies by age, prior history of VTE or severity of COVID-19.

Principal Investigator:

Kristi Reynolds, PhD, MPH

Funding Source:

Patient-Centered Outcomes Research Institute (PCORI)

Funding Years:

2016 - 2021

The Impact of Air Pollution Exposure on COVID-19 Severity and Mortality

The major goals of this project are to investigate the association of short- and long-term exposures to ambient air pollution and traffic-related air pollution with COVID-19 severity and fatality among patients in Southern California.

Principal Investigator:

Anny Hui Xiang, PhD, MS

Funding Source:

National Institute of Environmental Health Sciences (NIEHS)

Funding Years:

2020 - 2021

Research Categories:

Trends in Incidence of Hospitalized Acute Myocardial Infarction

The major goal of this project is to examine recent trends in incidence of hospitalized myocardial infarction among members in the Kaiser Permanente Southern California region aged 35 years and older.
COVID-19-Related Project Enhancement
National surveillance data from the U.S. Centers for Disease Control and Prevention suggest a decline in emergency department visits during the Covid-19 pandemic. The goal of this study is to understand the impact of the stay-at-home orders on health care utilization and delays in care for acute myocardial infarction during the Covid-19 pandemic.

Principal Investigator:

Kristi Reynolds, PhD, MPH

Funding Source:

Southern California Permanente Medical Group (SCPMG)

Funding Years:

2015 - 2022

Research Categories:

,

Understanding and supporting COVID-19 vaccine confidence among health care providers

The purpose of this mixed-methods study is to examine perceptions of COVID-19 vaccines among health care providers, willingness to receive and recommend COVID-19 vaccine, drivers of vaccine hesitancy, and needs for tailored interventions to support confidence in COVID-19 vaccines among health care providers and community members.

Funding Source:

Kaiser Permanente

Funding Years:

2021

Utilizing Real World Data to Describe Clinical and Safety Outcomes Among Hospitalized COVID-19 Patients, and to Create a Comparator Arm for a Randomized Controlled Trial Evaluating the Efficacy and Safety of Actemra for COVID-19 Patients

Elevated tissue and serum levels of IL-6 have been implicated in the disease pathology of several inflammatory and autoimmune disorders including rheumatoid arthritis, systemic juvenile idiopathic arthritis (sJIA), and cytokine-release syndrome (CRS). Tocilizumab or TCZ (Actemra) is a recombinant humanized, anti-human monoclonal antibody directed against soluble and membrane-bound IL-6R. On March 3rd 2020, TCZ was included in the updated diagnosis and treatment plan for COVID-19 issued by the China National Health Commission as one treatment option for severe or critical forms of COVID-19 pneumonia. However, despite fairly widespread use in China, Actemra has not received health authority approval for COVID-19 in any country. More robust clinical evidence regarding the safety or efficacy of TCZ in the treatment of COVID-19 is needed. Roche is conducting a Phase 3, randomized, double-blind, placebo-controlled, multicenter study to assess the efficacy and safety of TCZ in combination with SOC compared with matching placebo in combination with SOC in hospitalized adult patients with severe COVID-19 pneumonia (n=330). KPSC is collecting demographic, comorbidity, and clinical information on KPSC patients hospitalized with COVID-19 infection to create a real world data (RWD) comparator arm that will be matched to the TCZ treatment arm of the RCT.

Principal Investigator:

Sara Yee Tartof, PhD, MPH

Funding Source:

Genentech, Inc.

Funding Years:

2020 - 2022

Vaccine Safety Datalink (VSD) COVID-19 Vaccine Infrastructure and Participating Site Activities

The purpose of this task order is for the contractors to contribute to the main functions of VSD COVID-19 vaccine safety activities. The work from this task order will support and contribute to the COVID-19 vaccine safety work of the VSD. The objective is to provide high quality electronic data specific to COVID-19 vaccine safety activities. Contractors will also contribute to vaccine safety assessments through their participation on vaccine safety monitoring and evaluation studies, and by conducting medical record reviews.

Site Principal Investigator:

Hung Fu Tseng, PhD, MPH

Funding Source:

Centers for Disease Control and Prevention (CDC)

Funding Years:

2021 - 2026