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Veliparib and Topotecan Hydrochloride in Treating Patients With Solid Tumors, Relapsed or Refractory Ovarian Cancer, or Primary Peritoneal Cancer

A Phase 1/2 Trial of ABT-888, an Inhibitor of Poly(ADP-ribose) Polymerase (PARP), and Topotecan (TPT) in Patients With Solid Tumors (Phase 1) and Relapsed Ovarian Cancer or Primary Peritoneal Cancer (Phase 2) After Prior Platinum Containing First-Line Chemotherapy

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01012817
Enrollment
88
Registered
2009-11-13
Start date
2009-11-03
Completion date
2026-08-27
Last updated
2025-09-15

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

Conditions

Metastatic Malignant Solid Neoplasm, Recurrent Fallopian Tube Carcinoma, Recurrent Ovarian Carcinoma, Recurrent Primary Peritoneal Carcinoma, Unresectable Solid Neoplasm

Brief summary

This phase I/II trial studies the side effects and best dose of veliparib and topotecan hydrochloride and to see how well they work in treating patients with solid tumors, ovarian cancer that has come back or does not respond to treatment, or primary peritoneal cancer. Veliparib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as topotecan hydrochloride, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving veliparib with chemotherapy may kill more tumor cells.

Detailed description

PRIMARY OBJECTIVES: I. To determine the maximum tolerated dose of the combination of veliparib (ABT-888) and weekly topotecan (topotecan hydrochloride) in adult patients with advanced solid tumors. (Phase I) II. To identify any anti-tumor activity of this treatment combination, as assessed by objective response in patients with advanced solid tumors. (Phase I) III. To assess the confirmed response rate for patients with epithelial ovarian cancer, fallopian tube cancer or primary peritoneal carcinoma treated with the combination of ABT-888 and weekly topotecan. IV. To assess the progression free response (PFS) for patients with epithelial ovarian cancer, fallopian tube cancer or primary peritoneal carcinoma treated with the combination of ABT-888 and weekly topotecan. (Phase II) SECONDARY OBJECTIVES: I. To identify any pharmacokinetic interactions between ABT-888 and topotecan. (Phase I) II. To determine whether topotecan stimulates adenosine diphosphate (ADP)-ribose polymer formation in circulating peripheral blood mononuclear cells. (Phase I) III. To determine whether ABT-888 inhibits basal or topotecan-stimulated ADP-ribose polymer formation. (Phase I) IV. To assess differences in the toxicity and/or efficacy of this regimen based on BRCA 1/2 mutational status. (Phase II) V. To determine whether pretreatment tumor cell levels of topoisomerase I, poly ADP-ribose polymerase (PARP), BRCA1, BRCA2, XRCC1, tyrosyl-deoxyribonucleic acid (DNA) phosphodiesterase 1 (TDP1), P-glycoprotein or breast cancer resistance protein (BCRP) predict response to this regimen. (Phase II) VI. To identify, in an exploratory manner, any transcriptional profiles that may predict response to this regimen. (Phase II) OUTLINE: This is a phase I, dose-escalation study of veliparib and topotecan hydrochloride followed by a phase II study. (PHASE I DOSE-ESCALATION PART IS COMPLETED) Patients receive veliparib orally (PO) on days 1-3, 8-10, and 15-17 (veliparib is omitted on days 1-3 of course 2) and topotecan hydrochloride intravenously (IV) over 30 minutes on days 2, 9, and 16. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up at 3 months (Phase I) or every 3 or 6 months for 5 years (Phase II).

Interventions

OTHERPharmacological Study

Correlative studies

DRUGTopotecan Hydrochloride

Given IV

DRUGVeliparib

Given PO

Correlative studies

OTHERLaboratory Biomarker Analysis

Correlative studies

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

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

* PHASE I: Adult patients with histologically confirmed solid tumor malignancy that is metastatic or unresectable and for which standard curative measures or other therapy definitely capable of extending life expectancy does not exist * PHASE II: All patients enrolled in the Phase II portion of this trial must have a history of biopsy-proven ovarian, fallopian tube or primary peritoneal cancer * Patients must have received \< 3 lines of prior therapy and have relapsed less than a year from their last platinum regimen; regimens that are used twice (for example carboplatin and paclitaxel) can be counted as one; if a regimen is changed during the course of treatment due to side effect profile or allergy, the course of therapy is counted as one regimen; (for example, if docetaxel is substituted for paclitaxel due to a reaction during the initial course of adjuvant therapy, this is considered one regimen) * Patients must have measurable disease with at least one lesion whose longest diameter can be accurately measured as \>= 2.0 cm with conventional techniques or as \>= 1.0 cm with spiral computed topography (CT); if spiral CT is used, it must be used for both pre- and post- treatment tumor assessments * Absolute neutrophil count \>= 1500/mcL * Hemoglobin \>= 9.0 g/dL * Platelets \>= 100,000/mcL * Total bilirubin =\< 1.5 x the upper limit of normal (ULN) * Serum glutamic pyruvic transaminase (SGPT) (alanine aminotransferase \[ALT\]) or serum glutamic oxaloacetic transaminase (SGOT) (aspartate aminotransferase \[AST\]) =\< 2.5 x ULN in the absence of hepatic metastasis; SGPT (ALT) =\< 3 x ULN or SGOT (AST) =\< 5 x ULN in the presences of hepatic metastasis * Creatinine =\< 1.5 x ULN * International normalized ratio (INR) =\< 1.4 unless receiving therapeutic doses of coumadin * Partial thromboplastin time (PTT) =\< 48 seconds (1.25 x ULN) * Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0, 1, or 2 * Ability to provide informed consent * Willingness to return to enrolling institution for follow up * Life expectancy \>= 12 weeks * Willingness to provide the biologic specimens is required by the protocol; this is part of the mandatory correlative research component; these specimens include: * PHASE I: peripheral blood for plasma pharmacokinetic analysis and peripheral blood mononuclear cell (PBMC) polymer assessment from 0-24 h after drug administration on days 1 and 2 of cycle 1 as well as day 2 of cycle 2; urine for assessment of ABT-888 renal clearance for 24 h after administration of drugs on days 1 and 2 of cycle 1 as well as day 2 of cycle 2; and a pretreatment peripheral blood sample for possible sequencing of the BRCA1, BRCA2 loci as well as possible pharmacogenomic analysis * Negative urine or serum pregnancy test done =\< 7 days prior to registration for females of child bearing potential only * Able to swallow and absorb the medication

Exclusion criteria

* Known standard therapy for the patient's disease that is potentially curative or definitely capable of extending life expectancy * Prior treatment with a PARP inhibitor or topotecan * Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements * Any of the following prior therapies: * Chemotherapy =\< 4 weeks prior to registration * Mitomycin C/nitrosoureas =\< 6 weeks prior to registration * Immunotherapy =\< 4 weeks prior to registration * Biologic therapy =\< 4 weeks prior to registration * Radiation therapy =\< 4 weeks prior to registration * Radiation to \> 25% of bone marrow * Investigational therapy or any ancillary therapy considered investigational (utilized for a non-Food and Drug Administration \[FDA\]-approved indication and in the context of a research investigation) =\< 4 weeks prior to registration; subjects with prostate cancer will be permitted to continue hormone therapy * Failure to fully recover from acute, reversible effects of prior chemotherapy regardless of interval since last treatment * New York Heart Association classification III or IV * Known central nervous system (CNS) metastases or seizure disorder; patients with known brain metastases that have been successfully treated and stable for \>= 6 months without requirement for corticosteroids and without seizure activity will be eligible * Any of the following: * Pregnant women * Nursing women * Men or women of childbearing potential who are unwilling to employ adequate contraception * Co-morbid systemic illnesses or other severe concurrent disease which, in the judgment of the investigator, would make the patient inappropriate for entry into this study or interfere significantly with the proper assessment of safety and toxicity of the prescribed regimens * Immunocompromised patients (other than that related to the use of corticosteroids) including patients known to be human immunodeficiency virus (HIV) positive * Receiving any other investigational agent which would be considered as a treatment for the primary neoplasm * Other active malignancy, except non-melanotic skin cancer or carcinoma-in-situ of the cervix * Note: If there is a history of prior malignancy, they must not be receiving other specific treatment (other than hormonal therapy) for their cancer * History of myocardial infarction =\< 6 months, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias * More than 2 prior chemotherapy regimens for the current malignancy; full dose chemotherapy used in conjunction with concurrent radiation therapy will be included as prior therapy * Note: Prior hormonal therapy (e.g. leuprolide, aromatase inhibitors, tamoxifen) and immunotherapy will be allowed and not included as a prior chemotherapy; if the chemotherapy regimen is altered during the course due to issues with tolerability or safety, the regimen will be counted as one; using the same regimen at recurrence is counted as one regimen; the addition of bevacizumab to a prior regimen is considered one regimen

Design outcomes

Primary

MeasureTime frameDescription
Maximum Tolerated Dose of Topotecan Hydrochloride and Veliparib, Determined According to Incidence of Dose-limiting Toxicity, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (Phase I)4 weeksThe number of patients with a dose limiting toxicity will be reported. Dose-limiting toxicity (DLT) will be defined as a cycle 1 adverse event attributed (definitely, probably, or possibly) to the study treatment and meeting the following criteria: Grade 4 anemia, grade 4 neutrophil count decrease, grade 4 platelet count decrease, Serum creatinine \>= 2 times baseline or ≥ 2 times the upper limit of normal if baseline is \< the upper limit of normal, or other \>= Grade 3 as per NCI Common Terminology Criteria for Adverse Events CTCAE version 4.0. \>= Grade 3 nausea, vomiting, or diarrhea with maximal supportive treatment(s) will be considered dose-limiting. Grade 3 fatigue or anorexia will not be considered dos
Percent of Patients With Tumor Response, Defined as Complete Response or Partial Response as Assessed Using Response Evaluation Criteria In Solid TumorsUp to 48 weeks (12 courses)The proportion of successes will be estimated by the number of successes(CR or PR) divided by the total number of evaluable patients. Confidence intervals for the true success proportion will be calculated according to the approach of Duffy and Santner (1987). Complete Response (CR) is defined as disappearance of all target lesions and, if non target lesions exist, the disappearance of all non-target lesions and normalization of tumor maker level. At least 30% decrease in the sum of the longest diameter (LD) of target lesion taking as reference the baseline sum.

Secondary

MeasureTime frameDescription
Duration of ResponseUp to 5 yearsDuration of response is defined for all evaluable patients who have achieved an objective response as the date at which the patient's earliest best objective status is first noted to be either a complete response or partial response to the earliest date progression is documented.
Overall SurvivalThe time from registration to death due to any cause, assessed up to 5 yearsThe distribution of survival time for phase 2 patients will be estimated using the method of Kaplan-Meier.
Adverse Events, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0Up to 5 yearsThe maximum grade for each type of adverse event will be recorded for each patient, and frequency tables will be reviewed to determine patterns. Additionally, the relationship of the adverse event(s) to the study treatment will be taken into consideration.
Time to Treatment FailureThe time from the date of registration to the date at which the patient is removed from treatment due to progression, adverse events, or refusal, assessed up to 5 yearsTime to treatment failure is defined to be the time from the date of registration to the date at which the patient is removed from treatment due to progression, adverse events, or refusal.
Progression Free SurvivalThe time from registration to the earliest date of documentation of disease progression or death due to any cause, assessed up to 5 yearsThe distribution of progression free survival will be estimated using the method of Kaplan-Meier.

Countries

United States

Participant flow

Participants by arm

ArmCount
Phase 1 Dose Level 1
Patients receive 10qd veliparib PO on days 1-3, 8-10, and 15-17 (veliparib is omitted on days 1-3 of course 2) and 2mg/m\^2 topotecan hydrochloride IV over 30 minutes on days 2, 9, and 16. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
3
Phase 1 Dose Level 2
Patients receive 20qd veliparib PO on days 1-3, 8-10, and 15-17 (veliparib is omitted on days 1-3 of course 2) and 2mg/m\^2 topotecan hydrochloride IV over 30 minutes on days 2, 9, and 16. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
3
Phase 1 Dose Level 3
Patients receive 10qd veliparib PO on days 1-3, 8-10, and 15-17 (veliparib is omitted on days 1-3 of course 2) and 3mg/m\^2 topotecan hydrochloride IV over 30 minutes on days 2, 9, and 16. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
3
Phase 1 Dose Level 4
Patients receive 20qd veliparib PO on days 1-3, 8-10, and 15-17 (veliparib is omitted on days 1-3 of course 2) and 3mg/m\^2 topotecan hydrochloride IV over 30 minutes on days 2, 9, and 16. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
4
Phase 1 Dose Level 5
Patients receive 20qd veliparib PO on days 1-3, 8-10, and 15-17 (veliparib is omitted on days 1-3 of course 2) and 4mg/m\^2 topotecan hydrochloride IV over 30 minutes on days 2, 9, and 16. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
6
Phase 1 Dose Level 6
Patients receive 30qd veliparib PO on days 1-3, 8-10, and 15-17 (veliparib is omitted on days 1-3 of course 2) and 4mg/m\^2 topotecan hydrochloride IV over 30 minutes on days 2, 9, and 16. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
7
Phase 1 Dose Level 7
Patients receive 30qd veliparib PO on days 1-3, 8-10, and 15-17 (veliparib is omitted on days 1-3 of course 2) and 3mg/m\^2 topotecan hydrochloride IV over 30 minutes on days 2, 9, and 16. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
3
Phase 1 Dose Level 8
Patients receive 50qd veliparib PO on days 1-3, 8-10, and 15-17 (veliparib is omitted on days 1-3 of course 2) and 3mg/m\^2 topotecan hydrochloride IV over 30 minutes on days 2, 9, and 16. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
4
Phase 1 Dose Level 9
Patients receive 100qd veliparib PO on days 1-3, 8-10, and 15-17 (veliparib is omitted on days 1-3 of course 2) and 3mg/m\^2 topotecan hydrochloride IV over 30 minutes on days 2, 9, and 16. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
3
Phase 1 Dose Level 10
Patients receive 150qd veliparib PO on days 1-3, 8-10, and 15-17 (veliparib is omitted on days 1-3 of course 2) and 3mg/m\^2 topotecan hydrochloride IV over 30 minutes on days 2, 9, and 16. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
6
Phase 1 Dose Level 11
Patients receive 200qd veliparib PO on days 1-3, 8-10, and 15-17 (veliparib is omitted on days 1-3 of course 2) and 3mg/m\^2 topotecan hydrochloride IV over 30 minutes on days 2, 9, and 16. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
5
Phase 1 Dose Level 12
Patients receive 300qd veliparib PO on days 1-3, 8-10, and 15-17 (veliparib is omitted on days 1-3 of course 2) and 3mg/m\^2 topotecan hydrochloride IV over 30 minutes on days 2, 9, and 16. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
7
Phase 1 Dose Level 13
Patients receive 400qd veliparib PO on days 1-3, 8-10, and 15-17 (veliparib is omitted on days 1-3 of course 2) and 3mg/m\^2 topotecan hydrochloride IV over 30 minutes on days 2, 9, and 16. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
3
Phase 2
Patients receive 300qd veliparib PO on days 1-3, 8-10, and 15-17 (veliparib is omitted on days 1-3 of course 2) and 3mg/m\^2 topotecan hydrochloride IV over 30 minutes on days 2, 9, and 16. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.
31
Total88

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009FG010FG011FG012FG013
Overall StudyAdverse Event00000100001001
Overall StudyWithdrawal by Subject00010001001101

Baseline characteristics

CharacteristicTotalPhase 1 Dose Level 1Phase 1 Dose Level 2Phase 1 Dose Level 3Phase 1 Dose Level 4Phase 1 Dose Level 5Phase 1 Dose Level 6Phase 1 Dose Level 7Phase 1 Dose Level 8Phase 1 Dose Level 9Phase 1 Dose Level 10Phase 1 Dose Level 11Phase 1 Dose Level 12Phase 1 Dose Level 13Phase 2
Age, Continuous58.0 years52 years58.7 years67.7 years62.3 years60.3 years59.7 years50.3 years52 years54 years56.2 years56.2 years50.1 years55 years60.8 years
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants1 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
84 Participants3 Participants3 Participants3 Participants4 Participants6 Participants7 Participants3 Participants4 Participants3 Participants6 Participants5 Participants6 Participants2 Participants29 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
2 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
83 Participants3 Participants3 Participants3 Participants3 Participants6 Participants6 Participants3 Participants4 Participants3 Participants6 Participants4 Participants7 Participants2 Participants30 Participants
Sex: Female, Male
Female
87 Participants3 Participants3 Participants3 Participants4 Participants6 Participants6 Participants3 Participants4 Participants3 Participants6 Participants5 Participants7 Participants3 Participants31 Participants
Sex: Female, Male
Male
1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
EG010
affected / at risk
EG011
affected / at risk
EG012
affected / at risk
EG013
affected / at risk
deaths
Total, all-cause mortality
0 / 32 / 60 / 51 / 71 / 32 / 310 / 31 / 31 / 41 / 61 / 71 / 30 / 41 / 3
other
Total, other adverse events
3 / 36 / 65 / 57 / 73 / 329 / 313 / 33 / 34 / 46 / 67 / 73 / 34 / 43 / 3
serious
Total, serious adverse events
0 / 32 / 63 / 55 / 72 / 312 / 310 / 31 / 31 / 43 / 62 / 72 / 31 / 40 / 3

Outcome results

Primary

Maximum Tolerated Dose of Topotecan Hydrochloride and Veliparib, Determined According to Incidence of Dose-limiting Toxicity, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (Phase I)

The number of patients with a dose limiting toxicity will be reported. Dose-limiting toxicity (DLT) will be defined as a cycle 1 adverse event attributed (definitely, probably, or possibly) to the study treatment and meeting the following criteria: Grade 4 anemia, grade 4 neutrophil count decrease, grade 4 platelet count decrease, Serum creatinine \>= 2 times baseline or ≥ 2 times the upper limit of normal if baseline is \< the upper limit of normal, or other \>= Grade 3 as per NCI Common Terminology Criteria for Adverse Events CTCAE version 4.0. \>= Grade 3 nausea, vomiting, or diarrhea with maximal supportive treatment(s) will be considered dose-limiting. Grade 3 fatigue or anorexia will not be considered dos

Time frame: 4 weeks

Population: All phase 1 patients that received treatment per protocol and evaluated for adverse events.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Phase 1 Dose Level 1Maximum Tolerated Dose of Topotecan Hydrochloride and Veliparib, Determined According to Incidence of Dose-limiting Toxicity, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (Phase I)0 Participants
Phase 1 Dose Level 2Maximum Tolerated Dose of Topotecan Hydrochloride and Veliparib, Determined According to Incidence of Dose-limiting Toxicity, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (Phase I)0 Participants
Phase 1 Dose Level 3Maximum Tolerated Dose of Topotecan Hydrochloride and Veliparib, Determined According to Incidence of Dose-limiting Toxicity, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (Phase I)0 Participants
Phase 1 Dose Level 4Maximum Tolerated Dose of Topotecan Hydrochloride and Veliparib, Determined According to Incidence of Dose-limiting Toxicity, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (Phase I)0 Participants
Phase 1 Dose Level 5Maximum Tolerated Dose of Topotecan Hydrochloride and Veliparib, Determined According to Incidence of Dose-limiting Toxicity, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (Phase I)3 Participants
Phase 1 Dose Level 6Maximum Tolerated Dose of Topotecan Hydrochloride and Veliparib, Determined According to Incidence of Dose-limiting Toxicity, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (Phase I)2 Participants
Phase 1 Dose Level 7Maximum Tolerated Dose of Topotecan Hydrochloride and Veliparib, Determined According to Incidence of Dose-limiting Toxicity, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (Phase I)0 Participants
Phase 1 Dose Level 8Maximum Tolerated Dose of Topotecan Hydrochloride and Veliparib, Determined According to Incidence of Dose-limiting Toxicity, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (Phase I)0 Participants
Phase 1 Dose Level 9Maximum Tolerated Dose of Topotecan Hydrochloride and Veliparib, Determined According to Incidence of Dose-limiting Toxicity, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (Phase I)0 Participants
Phase 1 Dose Level 10Maximum Tolerated Dose of Topotecan Hydrochloride and Veliparib, Determined According to Incidence of Dose-limiting Toxicity, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (Phase I)1 Participants
Phase 1 Dose Level 11Maximum Tolerated Dose of Topotecan Hydrochloride and Veliparib, Determined According to Incidence of Dose-limiting Toxicity, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (Phase I)0 Participants
Phase 1 Dose Level 12Maximum Tolerated Dose of Topotecan Hydrochloride and Veliparib, Determined According to Incidence of Dose-limiting Toxicity, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (Phase I)1 Participants
Phase 1 Dose Level 13Maximum Tolerated Dose of Topotecan Hydrochloride and Veliparib, Determined According to Incidence of Dose-limiting Toxicity, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (Phase I)2 Participants
Primary

Percent of Patients With Tumor Response, Defined as Complete Response or Partial Response as Assessed Using Response Evaluation Criteria In Solid Tumors

The proportion of successes will be estimated by the number of successes(CR or PR) divided by the total number of evaluable patients. Confidence intervals for the true success proportion will be calculated according to the approach of Duffy and Santner (1987). Complete Response (CR) is defined as disappearance of all target lesions and, if non target lesions exist, the disappearance of all non-target lesions and normalization of tumor maker level. At least 30% decrease in the sum of the longest diameter (LD) of target lesion taking as reference the baseline sum.

Time frame: Up to 48 weeks (12 courses)

Population: All treated patients that were evaluated for disease response

ArmMeasureValue (NUMBER)
Phase 1 Dose Level 1Percent of Patients With Tumor Response, Defined as Complete Response or Partial Response as Assessed Using Response Evaluation Criteria In Solid Tumors0 percent of patients with response
Phase 1 Dose Level 2Percent of Patients With Tumor Response, Defined as Complete Response or Partial Response as Assessed Using Response Evaluation Criteria In Solid Tumors33 percent of patients with response
Phase 1 Dose Level 3Percent of Patients With Tumor Response, Defined as Complete Response or Partial Response as Assessed Using Response Evaluation Criteria In Solid Tumors0 percent of patients with response
Phase 1 Dose Level 4Percent of Patients With Tumor Response, Defined as Complete Response or Partial Response as Assessed Using Response Evaluation Criteria In Solid Tumors0 percent of patients with response
Phase 1 Dose Level 5Percent of Patients With Tumor Response, Defined as Complete Response or Partial Response as Assessed Using Response Evaluation Criteria In Solid Tumors17 percent of patients with response
Phase 1 Dose Level 6Percent of Patients With Tumor Response, Defined as Complete Response or Partial Response as Assessed Using Response Evaluation Criteria In Solid Tumors0 percent of patients with response
Phase 1 Dose Level 7Percent of Patients With Tumor Response, Defined as Complete Response or Partial Response as Assessed Using Response Evaluation Criteria In Solid Tumors0 percent of patients with response
Phase 1 Dose Level 8Percent of Patients With Tumor Response, Defined as Complete Response or Partial Response as Assessed Using Response Evaluation Criteria In Solid Tumors0 percent of patients with response
Phase 1 Dose Level 9Percent of Patients With Tumor Response, Defined as Complete Response or Partial Response as Assessed Using Response Evaluation Criteria In Solid Tumors0 percent of patients with response
Phase 1 Dose Level 10Percent of Patients With Tumor Response, Defined as Complete Response or Partial Response as Assessed Using Response Evaluation Criteria In Solid Tumors0 percent of patients with response
Phase 1 Dose Level 11Percent of Patients With Tumor Response, Defined as Complete Response or Partial Response as Assessed Using Response Evaluation Criteria In Solid Tumors0 percent of patients with response
Phase 1 Dose Level 12Percent of Patients With Tumor Response, Defined as Complete Response or Partial Response as Assessed Using Response Evaluation Criteria In Solid Tumors50 percent of patients with response
Phase 1 Dose Level 13Percent of Patients With Tumor Response, Defined as Complete Response or Partial Response as Assessed Using Response Evaluation Criteria In Solid Tumors0 percent of patients with response
Phase 2Percent of Patients With Tumor Response, Defined as Complete Response or Partial Response as Assessed Using Response Evaluation Criteria In Solid Tumors0 percent of patients with response
Secondary

Adverse Events, Graded Using National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0

The maximum grade for each type of adverse event will be recorded for each patient, and frequency tables will be reviewed to determine patterns. Additionally, the relationship of the adverse event(s) to the study treatment will be taken into consideration.

Time frame: Up to 5 years

Secondary

Duration of Response

Duration of response is defined for all evaluable patients who have achieved an objective response as the date at which the patient's earliest best objective status is first noted to be either a complete response or partial response to the earliest date progression is documented.

Time frame: Up to 5 years

Secondary

Overall Survival

The distribution of survival time for phase 2 patients will be estimated using the method of Kaplan-Meier.

Time frame: The time from registration to death due to any cause, assessed up to 5 years

Secondary

Progression Free Survival

The distribution of progression free survival will be estimated using the method of Kaplan-Meier.

Time frame: The time from registration to the earliest date of documentation of disease progression or death due to any cause, assessed up to 5 years

Secondary

Time to Treatment Failure

Time to treatment failure is defined to be the time from the date of registration to the date at which the patient is removed from treatment due to progression, adverse events, or refusal.

Time frame: The time from the date of registration to the date at which the patient is removed from treatment due to progression, adverse events, or refusal, assessed up to 5 years

Source: ClinicalTrials.gov · Data processed: Mar 6, 2026