ISRCTN ISRCTN12428408
DOI https://doi.org/10.1186/ISRCTN12428408
Submission date
09/03/2023
Registration date
18/03/2023
Last edited
10/10/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Infections and Infestations
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
Since the COVID-19 outbreak, the treatment of patients with COVID-19 pneumonia has been an issue of concern. At present, there is no specific drug for COVID-19, only symptomatic treatment, and the treatment of moderate and severe patients is a major difficulty. The emergence of nematavir/ritonavir tablets (PaxlovidTM ) has brought new hope for the treatment of COVID-19 and has shown an effective inhibitory effect on the Omicron variant of COVID-19.

Who can participate?
Patients aged 12 years and over infected with the Omicron variant of COVID-19

What does the study involve?
Patients were retrospectively collected and divided into two groups according to the treatment regimen. Patients in both groups were given Lianhua Qingwen Capsule orally, three times/day, 6 g/time. The study group was given nirmatrelvir 300 mg/ritonavir 100 mg orally, every 12 hours, for 5 days, and the control group was not given any antiviral drugs. The two groups were compared in terms of the change in COVID-19 tests, hospitalization time and adverse drug reactions.

What are the possible benefits and risks of participating?
The study could play an important guiding role in the treatment of the COVID-19 Omicron variant in the future, and reduce the pain and disease burden of patients.

Where is the study run from?
Wenzhou Central Hospital (China)

When is the study starting and how long is it expected to run for?
January 2022 to December 2022

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Chaochao Qiu, 790485628@qq.com

Contact information

Mr Chaochao Qiu
Principal Investigator

No. 252, Baili East Road
Lucheng District
Wenzhou City
325000
China

Phone +86 (0)86718290
Email 790485628@qq.com

Study information

Study designRetrospective study
Primary study designInterventional
Secondary study designRetrospective study
Study setting(s)Hospital
Study typeTreatment
Scientific titlePaxlovid in the treatment of COVID-19
Study acronymPIT
Study objectivesThe efficacy of nirmatrelvir/ritonavir in the treatment of the Omicron variant of COVID-19 was positive and had good tolerance in patients
Ethics approval(s)Approved 14/11/2022, Ethics Committee of Wenzhou Central Hospital (252 Baili Dong Lu, Lucheng District, Wenzhou City, Zhejiang Province, China; +86 (0)577 88070000; weybgs@163.com), ref: L2022-04-082
Health condition(s) or problem(s) studiedCOVID-19 (SARS-CoV-2 infection)
Intervention58 cases infected with the Omicron variant of COVID-19 were retrospectively collected and divided into two groups according to the treatment regimen. Patients in both groups were given Lianhua Qingwen Capsule orally, three times/day, 6 g/time. The study group was given nirmatrelvir 300 mg/ritonavir 100 mg orally, q12h, for 5 days, and the control group was not given any antiviral drugs. The two groups were compared in terms of the change in CT values of COVID-19 nucleic acid, the negative conversion time of COVID-19 RNA, hospitalization time, adverse drug reactions, and COVID-19 nucleic acid re-positive.
Intervention typeDrug
Pharmaceutical study type(s)
PhasePhase III/IV
Drug / device / biological / vaccine name(s)Nirmatrelvir/ritonavir
Primary outcome measureCT values (CT values of 40 for negative results) of nasal swab COVID-19 nucleic acid tests on days 4, 7, 9 and 11 of treatment
Secondary outcome measures1. First negative conversion time (or CT value ≥40) of COVID-19 nucleic acid tests
2. Hospitalization time, strictly according to discharge criteria
3. Adverse drug reactions recorded during hospitalization
4. COVID-19 nucleic acid re-positive in daily COVID-19 nucleic acid tests in the 7 days of isolation after discharge
Overall study start date01/01/2022
Completion date31/12/2022

Eligibility

Participant type(s)Patient
Age groupMixed
SexBoth
Target number of participants58
Total final enrolment58
Key inclusion criteria1. Confirmation of COVID-19 infection within 24 h and positive nasopharyngeal swab for COVID-19 nucleic acid RNA
2. Age ≥12 years and weight ≥40 kg
3. Subjects of fertility must agree to use highly effective contraceptive methods
Key exclusion criteria1. Previous history of COVID-19 treatment
2. A known history of active liver disease
3. Patients on renal dialysis or have moderate to severe impaired renal function
4. The known human immunodeficiency virus (HIV) infection
5. Suspected or confirmed concurrent active systemic infections other than COVID-19 infection
6. Allergy or other contraindication to any component of the study intervention
7. Any drug or substance that is currently or expected to be used that is a high reliance on CYP3A4 enzyme clearance or strong CYP3A4 enzyme inducers
8. Pregnant or breastfeeding women
Date of first enrolment15/11/2022
Date of final enrolment30/12/2022

Locations

Countries of recruitment

  • China

Study participating centre

Wenzhou Central Hospital
No. 252, Baili East Road
Lucheng District
Wenzhou City
325000
China

Sponsor information

Wenzhou Central Hospital
Hospital/treatment centre

No. 252, Baili East Road
Lucheng District
Wenzhou City
325000
China

Phone +86 (0)86718290
Email 790485628@qq.com
Website https://www.wzhosp.com/
ROR logo "ROR" https://ror.org/00w5h0n54

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date20/04/2023
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryStored in publicly available repository
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal
IPD sharing planThe datasets generated during and/or analysed during the current study will be stored in a publicly available repository

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article 13/07/2023 10/10/2023 Yes No

Editorial Notes

10/10/2023: Publication reference added.
17/03/2023: Trial's existence confirmed by the Wenzhou No.6 People's Hospital.