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Safety, Pharmacokinetics and Anti-tumor Activity of RP12146, in Patients With Solid Tumors

A Multi-center, Open-label, Phase I/Ib Study to Assess the Safety, Pharmacokinetics and Anti-tumor Activity of RP12146, a Poly (ADP-ribose) Polymerase (PARP) Inhibitor, in Patients With Locally Advanced or Metastatic Solid Tumors

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05002868
Enrollment
23
Registered
2021-08-12
Start date
2021-10-05
Completion date
2024-04-25
Last updated
2024-09-19

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

Conditions

Extensive-stage Small-cell Lung Cancer, Locally Advanced Breast Cancer, Metastatic Breast Cancer, Platinum-Sensitive Fallopian Tube Carcinoma, Platinum-sensitive Ovarian Cancer, Platinum-Sensitive Peritoneal Cancer, Solid Tumor

Keywords

PARP

Brief summary

An open-label, two-part Phase I/Ib study of RP12146 in adult patients with locally advanced or metastatic solid tumors. The first part (Part 1) is a Phase I dose-escalation, 3+3 design, open-label, MTD determination study and will enroll patients who have tumors known to harbour DNA repair deficiencies. The second part (Part 2) is a Phase Ib, dose-expansion at the MTD (or optimal dose) and will enroll patients with a confirmed deleterious HRR mutation in their tumor as identified by a central genomics testing laboratory.

Interventions

DRUGRP12146

starting dose of 100 mg QD

Sponsors

Rhizen Pharmaceuticals SA
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

. 1. Provision of full informed consent prior to any study-specific procedures. 2. Patients must be ≥18 years of age, at the time of signing informed consent. 3. Dose escalation phase, patients with histologically and/or cytologically confirmed malignant solid tumor whose disease has progressed following at least one standard therapy and who have no other acceptable standard treatment options. Tumor types will include breast, ovarian, fallopian tube, or peritoneal cancer, extensive-stage small cell lung cancer (ES-SCLC), prostate, pancreatic, colorectal gastric, biliary tract, and endometrial cancer. 4. Dose-expansion phase patients with histologically and/or cytologically confirmed malignant solid tumor (breast, ovarian, fallopian tube, or peritoneal cancer, extensive-stage small cell lung cancer (ES-SCLC), with one of the documented deleterious mutations of specified HRR genes and whose disease has progressed following at least one standard therapy. 5. Patients with at least one measurable lesion per RECIST version 1.1 at baseline that can be accurately assessed by CT-scan or MRI and is suitable for repeated assessment at follow up-visits. 6. ECOG performance status 0 to 2. 7. Use of contraception measures

Exclusion criteria

1. Patients with HER2 positive breast cancer 2. Patients receiving anticancer therapy 3. Patient who has not recovered from acute toxicities of previous therapy except treatment-related alopecia. 4. Prior treatment with a PARP inhibitor 5. Major surgery within 4 weeks of starting study treatment or any patient who has not recovered from the effects of major surgery. 6. Patient with symptomatic uncontrolled brain metastasis. 7. Pregnancy and lactation 8. Patients with uncontrolled disease

Design outcomes

Primary

MeasureTime frameDescription
Maximum tolerated dose (MTD) of RP12146 in patients with locally advanced or metastatic solid tumors28 daysThe MTD was defined as the highest dose level at which no more than 1 in 6 participants experienced a dose-limiting toxicity (DLT) during the first 28-day cycle of treatment
Number of Participants With Treatment-emergent Adverse Events as Assessed by CTCAE Criteria v5.02 yearsSummary of Treatment-Emergent Adverse Events-(Causality All). Patients will be monitored for adverse events and both related and as well as non-related adverse events will be captured during the study. All adverse events (irrespective of causality) will be reported.

Secondary

MeasureTime frameDescription
AUCDay 1 to Day 28Pharmacokinetics: Area Under the Concentration Curve (AUC) of RP12146
Overall response rate (ORR)2 yearsSum of the percentages of Complete Response and Partial Response
TmaxDay 1 to Day 28Pharmacokinetics: Time to Reach Maximum Concentration (Tmax) of RP12146
Progression free survival (PFS)2 yearsIt is defined as time from the first dose of study treatment to documented disease progression
Clinical benefit rate (CBR)2 yearsSum of the percentages of Complete response, partial response and stable disease
CmaxDay 1 to Day 28Pharmacokinetics: Maximum Concentration (Cmax) of RP12146

Countries

Czechia, Poland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 12, 2026