Evaluation of the Efficacy, Safety and Tolerability of Alisporivir for the Treatment of Hospitalised Patients With Infections Due to SARS-CoV-2 (COVID-19). A Randomised, Open-label, Proof of Concept, Phase 2 Study
Overview
- Phase
- Phase 2
- Intervention
- Alisporivir
- Conditions
- SARS-CoV-2
- Sponsor
- Assistance Publique - Hôpitaux de Paris
- Enrollment
- 26
- Locations
- 1
- Primary Endpoint
- Change in SARS-CoV-2 viral load in nasopharyngeal swabs
- Status
- Completed
- Last Updated
- 2 years ago
Overview
Brief Summary
COVID-19 is a viral respiratory and systemic disease that has been rapidly spreading globally since the first cases were reported in December 2019 and has now become pandemic. The causative agent of COVID-19 was identified as a novel coronavirus named severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2, first designated as 2019-nCoV).
The disease manifestations of COVID-19 can range from mild, self-resolving respiratory disease to severe pneumonia, ARDS, multiorgan failure, and ultimately death. In early reports, the mortality rate among patients admitted to hospital and with confirmed SARS-CoV-2 infection was reported to be between 4 and 15%. Although the disease can afflict all age groups, elderly patients and patients with underlying comorbidities such as high body mass index, hypertension, diabetes, cardiovascular disease, or cerebrovascular disease are at risk of developing severe disease and dying.
There are currently no etiologic treatments for COVID-19, and efforts are underway to identify therapeutics that could be effective in controlling this disease.
Detailed Description
Cyclophilins are cellular (host) peptidyl-prolyl cis/trans isomerases (molecular chaperones) involved in protein folding, maturation, and trafficking. Cyclophilins have been shown to play a key role in the lifecycle of many coronaviruses, including human coronaviruses 229E (HCoV-229E) and NL-63 (HCoV-NL63), feline infectious peritonitis coronavirus (FPIV), SARS-CoV and Middle-East-Respiratory-Syndrome coronavirus (MERS-CoV). Cyclosporin A (CsA), a potent cyclophilin inhibitor, blocks the replication of various coronaviruses in vitro, including HCoV-229E, HCoV-NL63, FPIV, mouse hepatitis virus (MHV), avian infectious bronchitis virus, and SARS-CoV. Alisporivir is a non-immunosuppressive analogue of CsA with potent cyclophilin inhibition properties. In vitro, alisporivir inhibits the replication of HCoV-229E, HCoV-NL63, MHV, SARS-CoV and MERS-CoV at low micromolar concentrations without cytotoxic effect. Although alisporivir has not demonstrated activity against coronaviruses in in vivo models to date, recent experiments showed that alisporivir bears concentration-dependent properties against CoV-2 in vitro. Preclinical pharmacology data indicate that, after oral administration, alisporivir is widely distributed in the whole body, including the lungs. Furthermore, the EC90 of alisporivir against SARS-CoV-2 in VeroE6 cells appears to be clinically achievable in patients. In addition, because alisporivir inhibits all cellular cyclophilins, it also blocks mitochondrial cyclophilin-D, a key regulator of mitochondrial permeability transition pore (mPTP) opening, a mechanism involved in triggering cell death. Therefore, besides its antiviral properties, alisporivir may also be effective in preventing lung tissue damage.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Adult males and females ≥18 years and ≤80 years of age at the time of screening.
- •Are hospitalised during the screening period with duration of hospitalisation prior to randomisation ≤48 hours.
- •Have a diagnosis of COVID-19 based on symptoms onset and positive SARS-CoV-2 RT-PCR test from nasopharyngeal swab.
- •Viral load ≤ 30 Ct
- •Have at least one (1) of the following:
- •Radiographic pulmonary infiltrates (CT scan), AND/OR
- •Clinical assessment (evidence of rales/crackles on exam) AND SpO2 ≤94% on room air, AND/OR
- •Requirement for supplemental oxygen.
- •If female, of non-childbearing potential or if of childbearing potential, be willing to commit to either sexual abstinence or use of at least 2 medically accepted, effective methods of birth control from screening through 2 months after last alisporivir dose.
- •If male, a willingness to refrain from donating sperm and, if engaging in sexual intercourse with a female partner who could become pregnant, a willingness to use a condom in addition to having the female partner use a highly effective method of birth control from screening through 4 months after last alisporivir dose.
Exclusion Criteria
- •Patients requiring mechanical ventilation at screening or randomisation.
- •In the opinion of the investigator, the patient is unlikely to survive the following 7 days after randomisation due to a rapidly progressive or terminal illness with a high risk of mortality due to any cause, including acute hepatic failure, respiratory failure or severe septic shock.
- •Patients who are unconscious or considered by the investigator unable to consent.
- •Other severe co-morbidity with life expectancy ≤3 months according to the investigator's assessment.
- •Critically ill patients who have an APACHE II score ≥
- •Concomitant severe bacterial infection including blood stream infections, endocarditis, osteomyelitis, retroperitoneal abscess, septic arthritis, or meningitis diagnosed within 7 days prior to randomisation (bacterial pulmonary infection that may complicate COVID-19 is not an exclusion criterion).
- •Any of the following signs of severe sepsis:
- •Shock or profound hypotension defined as systolic blood pressure ≤90 mm Hg or a decrease of ≥40 mm Hg from the value obtained during screening that is not responsive to fluid challenge.
- •Hypothermia (core temperature ≤ 35.6°C).
- •Disseminated intravascular coagulation (DIC) as evidenced by PT, PTT 2 × upper limit of normal (ULN), or platelets ≤ 50% of the lower limit of normal (LLN).
Arms & Interventions
Alisporivir
Administration of alisporivir and standard of care (SOC)
Intervention: Alisporivir
Standard of care (SOC)
Locally accepted regimen protocols for patient care
Intervention: Standard of care (SOC)
Outcomes
Primary Outcomes
Change in SARS-CoV-2 viral load in nasopharyngeal swabs
Time Frame: at Day 1 and Day 7
Secondary Outcomes
- Patient all-cause mortality(at Day 14, Day 28 and Day 90)
- Percentages of patients negative for SARS CoV 2 RNA in nasopharyngeal swabs(at Day 14, Day 21 and Day 28)
- Time to negative viral load(at Day 1 to Day 28)
- Duration of hospitalisation(at Day 90)
- Duration of new non-invasive ventilation or high flow oxygen use(at Day 90)
- Duration of new oxygen use(at Day 90)
- Duration of new ventilator or ECMO use(at Day 90)
- Number of non-invasive ventilation/high flow oxygen free days(at Day 90)
- Cumulative incidence of any AE(at Day 1 to Day 90)
- Cumulative incidence of Grade 3 and 4 AEs(at Day 1 to Day 90)
- Number of oxygenation free days(at Day 90)
- Viral Load Response Rate (VLRR)(at Day 1 and Day 7)
- Cumulative incidence of SAEs(at Day 1 to Day 90)
- Percentage of re-hospitalization(Hospital discharge to D90 ±2d)
- Percentage of patients reporting each severity rating on an 8-point ordinal scale.(at Day 1, Day4, Day 7, Day 11, Day 14 and Day 90)
- Change in National Early Warning Score scale(at Day 1, Day 4, Day 7, Day 11, Day 14 and Day 90)
- Changes in thoracic CT scan(screening to Day 1, Day 14 and Day 90)
- Percentage of patients admitted to Intensive Care Unit (ICU)(at Day 90)
- Time to admission to Intensive Care Unit (ICU)(at Day 90)
- Percentage of patients requiring mechanical ventilation(at Day 90)
- Time to resolution of symptoms(at Day 90)
- Duration of need for supplemental oxygen(at Day 90)