Temelimab as a Disease Modifying Therapy in Patients With Neuropsychiatric Symptoms in Post-COVID 19 or PASC Syndrome

Temelimab as a Disease Modifying Therapy in Patients With Neurological, Neuropsychological, and Psychiatric (=Neuropsychiatric) Symptoms in Post-COVID 19 or Postacute Sequelae of COVID-19 (PASC) Syndrome

This study is a Phase 2, 24-week, randomized, prospective, double-blind, multicenter study in patients experiencing neuropsychiatric symptoms and functional impairment in the course of PASC. The purpose of the study is to evaluate the efficacy and safety of Temelimab as a treatment for PASC neuropsychiatric symptoms in patients who had severe acute respiratory syndrome coronavirus - type 2 (SARS-CoV-2) infection but did not undergo intensive care treatment during the acute period. Patients meeting eligibility criteria will be randomized to Temelimab or placebo in a 1:1 ratio via interactive voice/web response system to obtain 182 protocol completers. The randomization will be stratified by age (≤65 years versus >65 years).

Study Overview

• Status: Active, not recruiting
• Conditions: Post-COVID-19 Syndrome
• Intervention / Treatment: Drug: Temelimab 54mg/kg; Drug: Placebo

• Study Type: Interventional
• Enrollment (Estimated): 200
• Phase: Phase 2

Contacts and Locations

• Study Contact: Name: Karim KEDDAD, MD, PhD; Phone Number: +41 22 552 48 00; Email: kk@geneuro.com
• Study Contact Backup: Name: Nathalie BERTHUY; Phone Number: +41 22 552 48 00; Email: nab@geneuro.com

Study Locations

• Italy
  • Modena, Italy, 41124
    • Clinica Metabolica dell'Università di Modena e Reggio Emilia
  • Roma, Italy, 00168
    • Fondazione Policlinico Universitario Agostino Gemelli Irccs
  • Roma, Italy, 00133
    • U.O.C. Malattie Infettive Tor Vergata, Policlincio Tor Vergata
  • Vipiteno, Italy, 39049
    • Hospital of Vipiteno
• Spain
  • Barcelona, Spain, 08028
    • Ace Alzheimer Center
  • Madrid, Spain, 28223
    • Hospital Universitario Quironsalud Madrid
  • Madrid, Spain, 28036
    • Private clinic Blue Healthcare
  • Valencia, Spain, 46014
    • Hospital General Universitario- Servicio de Medicina Interna
  • Zaragoza, Spain, 50015
    • Hospital Royo Villanova
• Switzerland
  • Basel, Switzerland, 4055
    • REHAB Clinic for Neurorehabilitation and Paraplegiology
  • Bern, Switzerland, 301
    • Inselspital Bern University Hospital Bern
  • Chur, Switzerland, 7000
    • Kantonsspital Graubünden
  • Geneva, Switzerland, 1211
    • Geneva University Hospital
  • Sion, Switzerland, 1951
    • Centre hospitalier du Valais Romand (CHVR) - Hôpital du Valais

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Main Inclusion Criteria:

• PASC Syndrome in accordance with NICE criteria with neuropsychiatric symptoms still occurring >12 weeks after their first appearance.
• Has had a SARS-CoV-2-positive diagnostic test (using a validated SARS-CoV-2 antigen, reverse transcription polymerase chain reaction [RT-PCR], or other molecular diagnostic assay, and an appropriate sample such as nasopharyngeal [NP], nasal, oropharyngeal [OP], or saliva). In case that the local standard of care did not foresee the previously mentioned tests, a confirmed SARS-CoV-2 nucleocapsid or membrane antibody test associated to a medical report documenting the date of COVID-19 clinical diagnostic, will be accepted.
• PROMIS Fatigue SF 7a total raw score ≥21 with onset of fatigue post coronavirus disease 2019 (COVID-19) infection.
• Patients affected with at least one of the following measures of objective impairment of cognitive function or of quality of life as defined by: i. Token Motor Test ≥1 z-score below the age/sex-adjusted mean ii. EQ5D-5L: Presence of at least 1 score ≥3 in any of the 5 variables of EQ5D-5L questionnaire (mobility; self-care; usual activities; pain/discomfort; anxiety/depression) iii. PQD-20 ≥27
• HERV-W ENV positive as defined by automated capillary western system, specific signal level over background noise (S/N) >1.

Main Exclusion Criteria:

• Intubation and mechanical ventilation in the course of COVID19 or reception of convalescent COVID19 plasma treatment at any time prior to study entry
• Major psychiatric conditions including but not restricted to (e.g. attention deficit/hyperactivity disorder, substance use disorder, schizophrenia documented in patient history or diagnosed using M.I.N.I), at the discretion of the site investigator, these do not refer to patients with typical mild to moderate symptoms of depression and anxiety associated with PASC
• Neurological signs and symptoms including change in level of consciousness, seizures, movement disorders or focal neurological deficits, disorders of the central nervous system with tissue damage or a pre-COVID-19 diagnosis of Chronic Fatigue Syndrome documented in the patient history or diagnosed during the neurological examination
• Current immunosuppressive//immunomodulating medication (e.g., azathioprine, tacrolimus, cyclosporine, methotrexate, hydroxychloroquine, cytotoxic chemotherapy, or neutralizing antibodies against SARS-CoV-2 epitopes) or therapy with HIV protease inhibitors

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Quadruple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Temelimab 54mg/kg; Monthly IV repeated dose in addition to standard of care	Drug: Temelimab 54mg/kg; Temelimab 54mg/kg will be given as monthly (every 4 weeks) intravenous (IV) infusion over 24 weeks (6 infusions in total)
Placebo Comparator: Placebo; Monthly IV repeated dose in addition to standard of care	Drug: Placebo; Placebo will be given as monthly (every 4 weeks) intravenous (IV) infusion over 24 weeks (6 infusions in total)

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Improvement in fatigue in PASC patients	Occurrence of an improvement in fatigue, measured by a decrease of ≥3 points in the Patient-Reported Outcomes Measurement Information System Fatigue Short Form 7a (PROMIS Fatigue SF 7a) score, at Week 24 as compared to baseline.	24 weeks

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Fatigue	Change from baseline to Week 24 in the Severity of fatigue as measured by the PROMIS Fatigue SF 7a score	24 weeks
Cognitive function	Change from baseline to Week 24 in 5 domain scores (verbal memory test, digit sequencing test, Token Motor Test, verbal semantic and letter fluency, and Tower of London) as measured by BAC tests	24 weeks
Cognitive function	Change from baseline to Week 24 in Symbol Digit Modalities Test (SDMT) score	24 weeks
Cognitive function	Change from baseline to Week 24 in Cognitive function as measured by the composite score of the BAC excluding symbol coding test	24 weeks
Cognitive function	Change from baseline to Week 24 in Cognitive function as measured by the Perceived Deficits Questionnaire, 20 items (PDQ-20)	24 weeks
Anxiety	Change from baseline to Week 24 in Severity of anxiety as measured by the Generalized Anxiety Disorder, 7 Items (GAD 7)	24 weeks
Depression	Change from baseline to Week 24 in Severity of depression as measured by the Patient Health Questionnaire, 9 Items (PHQ-9)	24 weeks
Functional impairment	Change from baseline to Week 24 in Level of functional impairment as measured by the Sheehan Disability Scale (SDS)	24 weeks
Post-COVID-19 Functional Status	Change from baseline to Week 24 in Post-COVID-19 Functional Status Scale (PCFS)	24 weeks
Safety and tolerability of Temelimab in PASC patients	Incidence of serious AEs [SAEs], AEs and analysis of physical examination findings, clinical laboratory values results	24 weeks
Overall quality of Life	Change from baseline to Week 24 in Overall quality of life as measured by the European Quality of Life 5 Dimensions, 5 Levels (EQ5D-5L)	24 weeks

Collaborators and Investigators

• Sponsor: GeNeuro SA
• Investigators: Study Director: David LEPPERT, MD, GeNeuro SA

Study record dates

Study Major Dates

• Study Start (Actual): August 29, 2022
• Primary Completion (Estimated): June 30, 2024
• Study Completion (Estimated): June 30, 2024

Study Registration Dates

• First Submitted: August 3, 2022
• First Submitted That Met QC Criteria: August 9, 2022
• First Posted (Actual): August 11, 2022

Study Record Updates

• Last Update Posted (Estimated): March 6, 2024
• Last Update Submitted That Met QC Criteria: March 5, 2024
• Last Verified: December 1, 2023

More Information

Terms related to this study

• Keywords: Post-COVID-19; GNbAC1; Human Endogenous Retrovirus Type W; HERV-W; Temelimab; PASC syndrome; Neuropsychiatric sequelae
• Additional Relevant MeSH Terms: Pathologic Processes; Coronavirus Infections; Coronaviridae Infections; Nidovirales Infections; RNA Virus Infections; Virus Diseases; Infections; Respiratory Tract Infections; Respiratory Tract Diseases; Pneumonia, Viral; Pneumonia; Lung Diseases; Disease; COVID-19; Syndrome
• Other Study ID Numbers: GNC-501; 2022-000618-32 (EudraCT Number)

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No