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A Study Comparing Low-Dose and Standard-Dose Lorlatinib with Posaconazole in Patients with ALK gene-Positive Advanced Lung Cancer (A Low-Cost Initiative)

An Open-Label, Sequential Pharmacokinetic and Safety Evaluation of Standard Dose Lorlatinib (100 mg daily) versus Low Dose Lorlatinib (25 mg daily) in Combination with Oral Posaconazole (300 mg daily) In Patients with ALK-Positive Advanced Non Small Cell Lung Cancer: A Low-Cost Initiative. (LOWLORP) - LOWLORP

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2026/02/104994
Enrollment
15
Registered
2026-02-27
Start date
Unknown
Completion date
Unknown
Last updated
2026-03-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: C349- Malignant neoplasm of unspecifiedpart of bronchus or lung

Interventions

Intervention1: Lorlatinib and Posaconazole: Lorlatinib low dose 25mg with oral Posaconazole 300mg daily from Day 6 to Day 14 Control Intervention1: Lorlatinib: Lorlatinib 100 mg once daily from Day 1

Sponsors

ACTREC, TMC Tata Memorial Centre
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Participants must meet all of the following: Age 18 years or older, male or female. Histologically or cytologically confirmed ALK positive advanced NSCLC. Indicated for lorlatinib therapy as per the treating oncologists discretion. ECOG performance status 2 or less. Adequate organ function at baseline: Hemoglobin 9.0 g per dL or higher ANC 1.5 x 10^9 per L or higher Platelets 100 x 10^9 per L or higher AST ALT 2.5 x ULN or less, or 5 x ULN or less if liver metastases Total bilirubin 1.5 x ULN or less Serum creatinine 1.5 x ULN or less or eGFR 60 mL per min per 1.73 m2 or higher Ability to comply with the inpatient stay and PK sampling schedule. Willing to provide signed written Informed Consent prior to any study specific procedures.

Exclusion criteria

Exclusion criteria: Concurrent use of strong CYP3A4 inducers or inhibitors other than study drug Posaconazole as per the study protocol. Concurrent use of any prohibited drugs as per Section 11. Known hypersensitivity to lorlatinib, posaconazole, or any excipients. Significant hepatic impairment Child Pugh B or C. History of CNS depression, severe psychiatric illness, or prior lorlatinib intolerance. Uncontrolled infection or comorbidities likely to interfere with participation. Patient consuming caffeine and alcohol concurrently. Pregnant or lactating women. Women of childbearing potential must use appropriate methods of contraception to avoid pregnancy. Unwillingness to provide informed consent.

Design outcomes

Primary

MeasureTime frame
AUC 0 to 24 ng h per mL: Total plasma exposure over 24 hours at steady state. Cmax ng per mL: Maximum plasma concentration at steady state. Ctrough ng per mL: Minimum plasma concentration prior to next dose. Pharmacokinetic equivalence will be concluded if the 90 percent confidence interval of the geometric mean ratio for AUC 0 to 24 and Cmax between Lorlatinib 25 mg plus Posaconazole 300 mg and Lorlatinib 100 mg monotherapy lies within the standard bioequivalence limits of 0.80 to 1.25.Timepoint: AUC 0 to 24 ng h per mL: Total plasma exposure over 24 hours at steady state. Cmax ng per mL: Maximum plasma concentration at steady state. Ctrough ng per mL: Minimum plasma concentration prior to next dose. Pharmacokinetic equivalence will be concluded if the 90 percent confidence interval of the geometric mean ratio for AUC 0 to 24 and Cmax between Lorlatinib 25 mg plus Posaconazole 300 mg and Lorlatinib 100 mg monotherapy lies within the standard bioequivalence limits of 0.80 to 1.25.

Secondary

MeasureTime frame
Incidence of grade 2 or higher adverse events graded as per CTCAE version 5.0.Timepoint: Baseline, Day 5, Day 14, Day 15, and follow up at 7 days post discharge.;Change from baseline in biochemical parameters including liver function tests and lipid profile and central nervous system parameters specific for lorlatinib.Timepoint: Assessed at baseline, Day 5, Day 14, end of study Day 15, and at 7 day post discharge follow up.;Clinical evaluation of tolerability during combination therapy.Timepoint: Primarily assessed during Period 2, days 6 to 14.;Proportion of patients in the combination treatment period whose AUC 0 to 24 and Cmax fall outside plus or minus 2 standard deviations from the mean AUC 0 to 24 and Cmax measured during standard dose lorlatinib monotherapy.Timepoint: Pharmacokinetic deviation analysis will be performed using steady state data obtained on Day 5 and Day 14.

Countries

India

Contacts

Public ContactDr Karunanidhan

Advanced Centre for Treatment, Research and Education in Cancer (ACTREC)

vgota76@gmail.com7715019117

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Apr 4, 2026