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Phase I Study of Intravenous Lipotecan® (TLC388 HCl for Injection) in Patients With Advanced Solid Tumors

A Phase 1 Open-Label, Sequential Dose Escalation Study Investigating the Safety, Tolerability, and Pharmacokinetics of Intravenous Lipotecan® (TLC388 HCl for Injection) When Administered to Patients With Advanced Solid Tumors

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00747474
Enrollment
54
Registered
2008-09-05
Start date
2008-09-30
Completion date
2011-12-31
Last updated
2019-11-18

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

Conditions

Advanced Solid Tumors

Brief summary

The purpose of this study is to find a safe and tolerable dose of Lipotecan® when administered to patients with advanced solid tumors.

Detailed description

Lipotecan® is a drug product of TLC388 HCl, which is a potent camptothecin analog with cytotoxic activities against a variety of human tumor cell lines in vitro and anti-tumor activities in several xenograft models with human tumor cell lines. Structurally, TLC388 HCl is related to other camptothecins, but it has been chemically modified to improve stability and potency, and to minimize toxicities.

Interventions

Lipotecan IV day 1, 8, 15

Sponsors

Taiwan Liposome Company
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Adult patients defined by age ≥18 years. * Pathologically confirmed advanced solid tumors for which standard therapy proven to provide clinical benefit does not exist or is no longer effective * Evaluable disease, either measurable on imaging or with informative tumor marker(s), by RECIST (Response Evaluation Criteria in Solid Tumors) criteria.

Exclusion criteria

* Pregnancy or lactation. Women of childbearing potential must have a negative pregnancy test within 7 days prior to enrolment. Male and female patients of childbearing potential must agree to use appropriate birth control (barrier methods with spermicides, oral or parenteral contraceptives and/or intrauterine devices) during the entire duration of the study, or the patient must be surgically sterile (with documentation in the patient's medical records). * Previous malignancy, except for non-basal-cell carcinoma of skin or carcinoma-in-situ of the uterine cervix, unless the tumor was treated with curative intent more than 2 years prior to study entry. * Receipt of more than 3 prior regimens of chemotherapy. * Chemotherapy or radiotherapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to baseline. Receipt of radiotherapy to \>25 % of bone marrow. Major surgery within 4 weeks prior to baseline. * Concomitant treatment with, or anticipated use of, pharmaceutical or herbal agents which are potent inhibitors or inducers of cytochrome P450 enzymes unless approved by the Sponsor. * Uncontrolled intercurrent illness that would jeopardize patient safety, interfere with the objectives of the protocol, or limit patient compliance with study requirements, as determined by the Investigator.

Design outcomes

Primary

MeasureTime frameDescription
Plasma Decay Half-Life (t1/2) of TLC-U20, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Maximum Tolerated Dose (MTD) of LipotecanFirst treatment to toxicity up to 42 daysMTD is the highest dose of drug that did not cause an unacceptable side effect (= Dose Limiting Toxicity (DLT)). A 3+3 study design was used to determine MTD. The MTD was the highest dose level at which 0 of 3 or 1 of 6 patients experience a DLT, with the next higher dose having at least 2 of 3 or 2 of 6 patients experiencing a DLT.
Number of Participants With Adverse Eventsan average of 6 monthsNumber of participants with AEs that occurred during treatment and follow-up period (30 days after last treatment). Drug-related AEs and SAEs were followed until resolved or stabilized. AEs were classified by the investigator according to severity graded using CTCAE version 3.0 and relationship to study drug. The severity scale is: Grade 1= Mild, Grade 2= Moderate, Grade 3= Severe, Grade 4= Life-threatening or disabling, Grade 5= Death related to AE
Maximum Observed Dose-normalized Plasma Concentration (Cmax) of S,R-TLC3880, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Maximum Observed Dose-normalized Plasma Concentration (Cmax) of S,S-TLC3880, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Maximum Observed Dose-normalized Plasma Concentration (Cmax) of Topotecan0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Maximum Observed Dose-normalized Plasma Concentration (Cmax) of TLC-U10, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Maximum Observed Dose-normalized Plasma Concentration (Cmax) of TLC-U20, 15m, 29m, 33m, 40m, 50m, 1h, 1h30m, 2h, 4h, 8hDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Time to Reach Maximum Observed Plasma Concentration (Tmax) of S,R-TLC3880, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8hDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Time to Reach Maximum Observed Plasma Concentration (Tmax) of S,S-TLC3880, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Time to Reach Maximum Observed Plasma Concentration (Tmax) of Topotecan0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Time to Reach Maximum Observed Plasma Concentration (Tmax) of TLC-U10, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Time to Reach Maximum Observed Plasma Concentration (Tmax) of TLC-U20, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Dose-normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-t)] of S,R-TLC3880, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Dose-normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-t)] of S,S-TLC3880, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Dose-normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-t)] of Topotecan0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Dose-normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-t)] of TLC-U10, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Dose-normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-t)] of TLC-U20, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Plasma Decay Half-Life (t1/2) of S,R-TLC3880, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Plasma Decay Half-Life (t1/2) of S,S-TLC3880, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Plasma Decay Half-Life (t1/2) of Topotecan0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.
Plasma Decay Half-Life (t1/2) of TLC-U10, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-doseDrug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Secondary

MeasureTime frameDescription
Anti-tumor ActivityFrom start of treatment assessed every 2 cycles up to 2.5 yearsPatients were evaluated by tumor assessment using RECIST guidelines. Possible evaluations include: Complete Response (CR): disappearance of all target lesions. Partial Response (PR): at least a 30% decrease in the size of target lesions. Progressive Disease (PD): at least a 20% increase in the size of target lesions. Stable Disease (SD): neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD.

Countries

Taiwan, United States

Participant flow

Recruitment details

The study recruitment period was from Sep 2008 to Dec 2010. Patients were recruited from three US clinical sites and one Taiwan site.

Pre-assignment details

Patients will attend the clinic for a screening visit up to 28 days before receiving, if eligible, the first dose of Lipotecan®.

Participants by arm

ArmCount
Overall Population
Lipotecan was administered intravenously on day 1, 8 and 15 of a 28-day cycle.
54
Total54

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009FG010FG011
Cohort 8 (40 mg/m^2) Periodwith efficacy and continued treatment000000010000

Baseline characteristics

CharacteristicOverall Population
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
22 Participants
Age, Categorical
Between 18 and 65 years
32 Participants
Age, Continuous60.5 years
STANDARD_DEVIATION 11.6
Region of Enrollment
Taiwan
13 participants
Region of Enrollment
United States
41 participants
Sex: Female, Male
Female
22 Participants
Sex: Female, Male
Male
32 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
54 / 54
serious
Total, serious adverse events
11 / 54

Outcome results

Primary

Dose-normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-t)] of S,R-TLC388

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsDose-normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-t)] of S,R-TLC3880.70 hr*ng/mLStandard Deviation 1.63
Primary

Dose-normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-t)] of S,S-TLC388

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsDose-normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-t)] of S,S-TLC3881.04 hr*ng/mLStandard Deviation 2.44
Primary

Dose-normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-t)] of TLC-U1

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsDose-normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-t)] of TLC-U17.15 hr*ng/mLStandard Deviation 2.2
Primary

Dose-normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-t)] of TLC-U2

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsDose-normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-t)] of TLC-U22.00 hr*ng/mLStandard Deviation 0.66
Primary

Dose-normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-t)] of Topotecan

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsDose-normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-t)] of Topotecan3.59 hr*ng/mLStandard Deviation 1.3
Primary

Maximum Observed Dose-normalized Plasma Concentration (Cmax) of S,R-TLC388

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsMaximum Observed Dose-normalized Plasma Concentration (Cmax) of S,R-TLC3881.39 ng/mLStandard Deviation 3.21
Primary

Maximum Observed Dose-normalized Plasma Concentration (Cmax) of S,S-TLC388

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsMaximum Observed Dose-normalized Plasma Concentration (Cmax) of S,S-TLC3882.21 ng/mLStandard Deviation 5.12
Primary

Maximum Observed Dose-normalized Plasma Concentration (Cmax) of TLC-U1

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsMaximum Observed Dose-normalized Plasma Concentration (Cmax) of TLC-U15.01 ng/mLStandard Deviation 1.91
Primary

Maximum Observed Dose-normalized Plasma Concentration (Cmax) of TLC-U2

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1h, 1h30m, 2h, 4h, 8h

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsMaximum Observed Dose-normalized Plasma Concentration (Cmax) of TLC-U21.40 ng/mLStandard Deviation 0.48
Primary

Maximum Observed Dose-normalized Plasma Concentration (Cmax) of Topotecan

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsMaximum Observed Dose-normalized Plasma Concentration (Cmax) of Topotecan0.82 ng/mLStandard Deviation 0.44
Primary

Maximum Tolerated Dose (MTD) of Lipotecan

MTD is the highest dose of drug that did not cause an unacceptable side effect (= Dose Limiting Toxicity (DLT)). A 3+3 study design was used to determine MTD. The MTD was the highest dose level at which 0 of 3 or 1 of 6 patients experience a DLT, with the next higher dose having at least 2 of 3 or 2 of 6 patients experiencing a DLT.

Time frame: First treatment to toxicity up to 42 days

Population: Patients received at least one dose of Lipotecan.

ArmMeasureValue (NUMBER)
All ParticipantsMaximum Tolerated Dose (MTD) of Lipotecan50 mg/m^2
Primary

Number of Participants With Adverse Events

Number of participants with AEs that occurred during treatment and follow-up period (30 days after last treatment). Drug-related AEs and SAEs were followed until resolved or stabilized. AEs were classified by the investigator according to severity graded using CTCAE version 3.0 and relationship to study drug. The severity scale is: Grade 1= Mild, Grade 2= Moderate, Grade 3= Severe, Grade 4= Life-threatening or disabling, Grade 5= Death related to AE

Time frame: an average of 6 months

Population: Patients received at least one dose of Lipotecan

ArmMeasureValue (NUMBER)
All ParticipantsNumber of Participants With Adverse Events54 participants
Primary

Plasma Decay Half-Life (t1/2) of S,R-TLC388

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsPlasma Decay Half-Life (t1/2) of S,R-TLC3881.08 hourStandard Deviation 1.77
Primary

Plasma Decay Half-Life (t1/2) of S,S-TLC388

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsPlasma Decay Half-Life (t1/2) of S,S-TLC3880.75 hourStandard Deviation 1.18
Primary

Plasma Decay Half-Life (t1/2) of TLC-U1

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsPlasma Decay Half-Life (t1/2) of TLC-U13.13 hourStandard Deviation 1.27
Primary

Plasma Decay Half-Life (t1/2) of TLC-U2

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsPlasma Decay Half-Life (t1/2) of TLC-U22.58 hourStandard Deviation 0.62
Primary

Plasma Decay Half-Life (t1/2) of Topotecan

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsPlasma Decay Half-Life (t1/2) of Topotecan6.05 hourStandard Deviation 2.71
Primary

Time to Reach Maximum Observed Plasma Concentration (Tmax) of S,R-TLC388

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsTime to Reach Maximum Observed Plasma Concentration (Tmax) of S,R-TLC3880.47 hourStandard Deviation 0.3
Primary

Time to Reach Maximum Observed Plasma Concentration (Tmax) of S,S-TLC388

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsTime to Reach Maximum Observed Plasma Concentration (Tmax) of S,S-TLC3880.47 hourStandard Deviation 0.3
Primary

Time to Reach Maximum Observed Plasma Concentration (Tmax) of TLC-U1

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsTime to Reach Maximum Observed Plasma Concentration (Tmax) of TLC-U10.45 hourStandard Deviation 0.17
Primary

Time to Reach Maximum Observed Plasma Concentration (Tmax) of TLC-U2

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsTime to Reach Maximum Observed Plasma Concentration (Tmax) of TLC-U20.47 hourStandard Deviation 0.14
Primary

Time to Reach Maximum Observed Plasma Concentration (Tmax) of Topotecan

Drug product Lipotecan consists of TLC388 diastereomers (S,S-TLC388 and S,R-TLC388 in 2:1 ratio). Three metabolites as TLC-U1, TLC-U2 and topotecan were identified in rats, dogs and human.

Time frame: 0, 15m, 29m, 33m, 40m, 50m, 1 h, 1h 30m, 2h, 4h, 8h post-dose

Population: Patients complete cycle 1 and 2 treatments without major protocol deviation.

ArmMeasureValue (MEAN)Dispersion
All ParticipantsTime to Reach Maximum Observed Plasma Concentration (Tmax) of Topotecan0.93 hourStandard Deviation 0.82
Secondary

Anti-tumor Activity

Patients were evaluated by tumor assessment using RECIST guidelines. Possible evaluations include: Complete Response (CR): disappearance of all target lesions. Partial Response (PR): at least a 30% decrease in the size of target lesions. Progressive Disease (PD): at least a 20% increase in the size of target lesions. Stable Disease (SD): neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD.

Time frame: From start of treatment assessed every 2 cycles up to 2.5 years

Population: Patients received at least one dose of Lipotecan.

ArmMeasureGroupValue (NUMBER)
All ParticipantsAnti-tumor ActivityComplete Response (CR)0 participants
All ParticipantsAnti-tumor ActivityPartitial Response (PR)0 participants
All ParticipantsAnti-tumor ActivityStable Disease (SD)21 participants
All ParticipantsAnti-tumor ActivityProgression Disease (PD)20 participants
All ParticipantsAnti-tumor ActivityNo assessment13 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026