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Lefamulin Post-Market Surveillance Study

5. august 2026 oppdatert av: Marubeni Pharmaceuticals (Suzhou) Co., Ltd.

A Multicenter, Single-arm, Real-world Study to Evaluate the Safety and Efficacy of Lefamulin in Patients With Community-acquired Pneumonia

Community-acquired pneumonia (CAP) refers to infectious parenchymal lung inflammation acquired outside hospital settings. In China, its incidence is 7.13 per 1000 person-years, with over 10 million new cases annually. Elderly CAP patients carry a higher mortality risk. The predominant pathogens of CAP in China are Mycoplasma pneumoniae and Streptococcus pneumoniae, followed by Haemophilus influenzae, Staphylococcus aureus and other pathogens.

Commonly used antibacterial agents include macrolides, penicillins, cephalosporins, respiratory quinolones and tetracyclines. Nevertheless, drug resistance is prevalent nationwide. Specifically, the resistance rate of Mycoplasma pneumoniae to macrolides ranges from 54.9% to 71.7%, while that of Streptococcus pneumoniae reaches as high as 77.2% to 93.8%. Therefore, novel antibacterial agents covering common pathogens with low cross-resistance are urgently needed.

Lefamulin is the first systemic pleuromutilin antibacterial agent for human use. It binds to the peptidyl transferase center of bacterial 50S ribosomal subunit via dual A/P sites to inhibit bacterial protein synthesis. It features low cross-resistance and low potential to induce drug resistance, and exerts broad-spectrum antibacterial activity against common typical and atypical pathogens (including multi-drug resistant strains) causing CAP.

Multiple Phase III randomized controlled trials have verified that lefamulin achieves favorable early clinical response (ECR) and investigator-assessed clinical response (IACR) in CAP patients, providing solid evidence-based support for its clinical application. As a safer and more effective therapeutic option for CAP, lefamulin has been recommended by domestic and international clinical guidelines and expert consensus.

This study aims to evaluate the safety and efficacy of lefamulin in real-world clinical treatment among Chinese patients with CAP.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Studietype

Observasjonsmessig

Registrering (Antatt)

1000

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

    • Beijing Municipality
      • Beijing, Beijing Municipality, Kina, 100029
        • Rekruttering
        • China-Japan Friendship Hospital
        • Ta kontakt med:

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Barn
  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

A total of 1000 patients with CAP are planned to be enrolled in this study. All enrolled patients have been prescribed and scheduled to start lefamulin treatment or are already receiving lefamulin therapy. The decision to initiate lefamulin treatment is independent of this study.

Beskrivelse

Inclusion Criteria:

  1. Signed informed consent form
  2. Clinical diagnosis of community-acquired pneumonia (CAP) by treating physicians
  3. Currently receiving lefamulin treatment or prescribed and agreed to initiate lefamulin therapy as determined by the treating physician

Exclusion Criteria:

  1. Patients with contraindications to lefamulin according to the approved prescribing information (e.g., known hypersensitivity to lefamulin or pleuromutilin class antibiotics)
  2. Pulmonary infiltrates caused by non-infectious factors (e.g., pulmonary embolism, aspiration chemical pneumonitis, hypersensitivity pneumonitis, congestive heart failure, bronchial obstruction, lung cancer, cystic fibrosis)
  3. Confirmed or suspected empyema via chest X-ray or CT examination
  4. Participation in any other ongoing interventional clinical trial

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
To evaluate the safety of lefamulin in the real-world treatment of patients with CAP
Tidsramme: Visit 1 (Day 1: baseline, date of initial lefamulin administration) through Visit 4 (Days 27-33 post-administration)

Treatment-emergent adverse events (TEAEs) will be collected from medical records, patient interviews, and laboratory findings. Events will be coded using MedDRA (or CTCAE v5.0 where applicable), and assessed for severity, seriousness, and causality to lefamulin by the investigator.

Data will be summarized as:

Number and percentage of participants with any TEAE, drug-related TEAE, serious adverse events (SAEs), and TEAEs leading to treatment discontinuation.

Incidence by severity (mild, moderate, severe), system organ class, and preferred term.

Visit 1 (Day 1: baseline, date of initial lefamulin administration) through Visit 4 (Days 27-33 post-administration)

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Proportion of participants achieving Early Clinical Response (ECR).
Tidsramme: Visit 2 (Days 4-6 after lefamulin administration)

Early Clinical Response (ECR) is assessed at Visit 2 as the proportion of participants with improvement in at least two of the four cardinal symptoms of CAP (cough, sputum production, dyspnea, chest pain) without worsening of any symptom.

Data will be summarized as number and percentage of participants achieving ECR in the intention-to-treat (ITT) population, with 95% confidence intervals.

Visit 2 (Days 4-6 after lefamulin administration)
Proportion of participants achieving Investigator-Assessed Clinical Response (IACR) at Test-of-Cure (TOC)
Tidsramme: Visit 3 (within 2 days after end of treatment) and Visit 4 (5-10 days post-TOC, retrospective assessment)

Investigator-Assessed Clinical Response (IACR) is defined as complete or partial resolution of signs and symptoms of community-acquired pneumonia. Assessments will be performed at end of treatment (Visit 3) and 5-10 days after TOC (Visit 4, retrospective).

Data will be summarized as the number and percentage of participants achieving IACR at each time point in the clinically evaluable and modified ITT populations, with 95% confidence intervals.

Visit 3 (within 2 days after end of treatment) and Visit 4 (5-10 days post-TOC, retrospective assessment)
Health outcomes including hospital readmission/re-visit rate and change in EQ-5D-5L score
Tidsramme: Up to Visit 4 (Days 27-33 after lefamulin administration)

This measure includes:

Rate of all-cause hospital readmission or pneumonia-related re-visit within 30 days.

Change in health-related quality of life as measured by the EQ-5D-5L questionnaire from baseline (Visit 1) to Visit 4.

EQ-5D-5L will be scored using the standard index value (0-1 scale, where 1 = full health).

Data will be summarized as:

Number and percentage of participants with hospital readmission/re-visit. Mean change in EQ-5D-5L index score from baseline, with standard deviation.

Up to Visit 4 (Days 27-33 after lefamulin administration)

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Samarbeidspartnere

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

30. juni 2026

Primær fullføring (Antatt)

31. desember 2027

Studiet fullført (Antatt)

31. desember 2028

Datoer for studieregistrering

Først innsendt

17. juni 2026

Først innsendt som oppfylte QC-kriteriene

6. juli 2026

Først lagt ut (Faktiske)

13. juli 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

7. august 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

5. august 2026

Sist bekreftet

1. juli 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • MPCN-LEF-2025-001

Plan for individuelle deltakerdata (IPD)

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UBESLUTTE

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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