NCT04942249

Brief Summary

A prospective, longitudinal cohort study designed to follow-up on 500 Swiss military personnel who tested in 2020 for SARS-CoV-2 (regardless of whether positive or negative, but with a known test result). Participants are invited to undergo an intensive test battery to evaluate if they suffer COVID-19 sequelae. The testing will include evaluation of several body systems (cardio-vascular, pulmonary, neurological, ophthalmological, psychological and general) and male fertility in a voluntary subgroup. Immune markers and SARS-CoV-2 reinfection rates will also be evaluated. The study hypothesis is that SARS-CoV-2 infection causes a multi-system disease with sequelae detectable in a significant proportion of army recruits after infection with SARS-CoV-2.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
500

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started May 2021

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 20, 2021

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

June 24, 2021

Completed
4 days until next milestone

First Posted

Study publicly available on registry

June 28, 2021

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2021

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2021

Completed
Last Updated

June 28, 2021

Status Verified

June 1, 2021

Enrollment Period

5 months

First QC Date

June 24, 2021

Last Update Submit

June 24, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • to longitudinally follow-up on a cohort of 500 military who tested either positive or negative for SARS-CoV-2 in early 2020 for possible sequelae, one year post infection

    The primary endpoint is the occurrence of SARS-CoV-2 infection sequelae in a longitudinally follow-up cohort of a total of 500 military who tested either positive or negative for SARS-CoV-2 in early 2020.

    One year

Secondary Outcomes (1)

  • Outcomes from components of the test battery

    One year

Study Arms (3)

Symptomatic

167 symptomatic Swiss army recruits who tested positive for SARS-CoV-2 in 2020

Other: No intervention

Asymptomatic

167 asymptomatic Swiss army recruits who tested positive for SARS-CoV-2 in 2020

Other: No intervention

No evidence of infection

167 Swiss army recruits with no evidence of infection (who also were tested for SARS-CoV-2 in 2020)

Other: No intervention

Interventions

No intervention

AsymptomaticNo evidence of infectionSymptomatic

Eligibility Criteria

Age18 Years - 30 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

The project population is Swiss army recruits who were tested for SARS-CoV-2 in 2020 (regardless of whether they tested positive or negative, but with a known test result). The total number of participants is 500 stratified to 167 participants per infection status (symptomatic, asymptomatic or no evidence of infection).

You may qualify if:

  • Army recruits and personnel who tested for SARS-CoV-2.
  • Completion of a consent form.
  • Willing to participate and to complete the testing day in Zürich.
  • Male
  • No known abnormality of the reproductive system (e.g. Klinefelter-Syndrome)

You may not qualify if:

  • Unwilling to provide consent. Unable to attend the testing day in Zurich.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Epidemiology, Biostatistics and Prevention Institute at the University of Zurich

Zurich, 8001, Switzerland

Location

Related Publications (10)

  • Azim D, Nasim S, Kumar S, Hussain A, Patel S. Neurological Consequences of 2019-nCoV Infection: A Comprehensive Literature Review. Cureus. 2020 Jun 24;12(6):e8790. doi: 10.7759/cureus.8790.

    PMID: 32601577BACKGROUND
  • Banerjee D, Viswanath B. Neuropsychiatric manifestations of COVID-19 and possible pathogenic mechanisms: Insights from other coronaviruses. Asian J Psychiatr. 2020 Dec;54:102350. doi: 10.1016/j.ajp.2020.102350. Epub 2020 Aug 12.

    PMID: 33271682BACKGROUND
  • Barker-Davies RM, O'Sullivan O, Senaratne KPP, Baker P, Cranley M, Dharm-Datta S, Ellis H, Goodall D, Gough M, Lewis S, Norman J, Papadopoulou T, Roscoe D, Sherwood D, Turner P, Walker T, Mistlin A, Phillip R, Nicol AM, Bennett AN, Bahadur S. The Stanford Hall consensus statement for post-COVID-19 rehabilitation. Br J Sports Med. 2020 Aug;54(16):949-959. doi: 10.1136/bjsports-2020-102596. Epub 2020 May 31.

    PMID: 32475821BACKGROUND
  • Battaglini D, Brunetti I, Anania P, Fiaschi P, Zona G, Ball L, Giacobbe DR, Vena A, Bassetti M, Patroniti N, Schenone A, Pelosi P, Rocco PRM, Robba C. Neurological Manifestations of Severe SARS-CoV-2 Infection: Potential Mechanisms and Implications of Individualized Mechanical Ventilation Settings. Front Neurol. 2020 Aug 12;11:845. doi: 10.3389/fneur.2020.00845. eCollection 2020.

    PMID: 32903391BACKGROUND
  • Bielecki M, Zust R, Siegrist D, Meyerhofer D, Crameri GAG, Stanga Z, Stettbacher A, Buehrer TW, Deuel JW. Social Distancing Alters the Clinical Course of COVID-19 in Young Adults: A Comparative Cohort Study. Clin Infect Dis. 2021 Feb 16;72(4):598-603. doi: 10.1093/cid/ciaa889.

    PMID: 32594121BACKGROUND
  • Carfi A, Bernabei R, Landi F; Gemelli Against COVID-19 Post-Acute Care Study Group. Persistent Symptoms in Patients After Acute COVID-19. JAMA. 2020 Aug 11;324(6):603-605. doi: 10.1001/jama.2020.12603.

    PMID: 32644129BACKGROUND
  • Chen L, Deng C, Chen X, Zhang X, Chen B, Yu H, Qin Y, Xiao K, Zhang H, Sun X. Ocular manifestations and clinical characteristics of 535 cases of COVID-19 in Wuhan, China: a cross-sectional study. Acta Ophthalmol. 2020 Dec;98(8):e951-e959. doi: 10.1111/aos.14472. Epub 2020 May 18.

    PMID: 32421258BACKGROUND
  • Del Rio C, Collins LF, Malani P. Long-term Health Consequences of COVID-19. JAMA. 2020 Nov 3;324(17):1723-1724. doi: 10.1001/jama.2020.19719. No abstract available.

    PMID: 33031513BACKGROUND
  • Disser NP, De Micheli AJ, Schonk MM, Konnaris MA, Piacentini AN, Edon DL, Toresdahl BG, Rodeo SA, Casey EK, Mendias CL. Musculoskeletal Consequences of COVID-19. J Bone Joint Surg Am. 2020 Jul 15;102(14):1197-1204. doi: 10.2106/JBJS.20.00847.

    PMID: 32675661BACKGROUND
  • Deuel JW, Lauria E, Lovey T, Zweifel S, Meier MI, Zust R, Gultekin N, Stettbacher A, Schlagenhauf P. Persistence, prevalence, and polymorphism of sequelae after COVID-19 in unvaccinated, young adults of the Swiss Armed Forces: a longitudinal, cohort study (LoCoMo). Lancet Infect Dis. 2022 Dec;22(12):1694-1702. doi: 10.1016/S1473-3099(22)00449-2. Epub 2022 Aug 26.

Biospecimen

Retention: SAMPLES WITH DNA

Saliva and blood.

MeSH Terms

Conditions

COVID-19

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof. Dr.

Study Record Dates

First Submitted

June 24, 2021

First Posted

June 28, 2021

Study Start

May 20, 2021

Primary Completion

October 31, 2021

Study Completion

December 31, 2021

Last Updated

June 28, 2021

Record last verified: 2021-06

Locations