Phase 1
Completed N=6
Oral Bioavailability and Mass Balance Trial With Pimasertib
Locally Advanced or Metastatic Solid Tumors
Source: ClinicalTrials.gov NCT01713036 ↗
Enrolled (actual)
6
Serious AEs
33.3%
Results posted
Aug 2016
Primary outcomePrimary: Area Under the Plasma Concentration Time Curve From Time Zero to the Last Sampling Time Point (AUC0-t) of [14C]-Pimasertib Following Intravenous (IV) Administration on Day 1 — 36.0 hour*picogram equivalent/milliliter
Summary
This is a Phase 1, open-label, single centered trial to evaluate the mass balance, bioavailability and metabolism of pimasertib in cancer subjects with locally advanced or metastatic solid tumors.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Area Under the Plasma Concentration Time Curve From Time Zero to the Last Sampling Time Point (AUC0-t) of [14C]-Pimasertib Following Intravenous (IV) Administration on Day 1 |
36.0 | — |
| PRIMARY Area Under the Plasma Concentration Time Curve From Time Zero to the Last Sampling Time Point (AUC0-t) of Pimasertib Following Oral Administration on Day 1 |
937.2 | — |
| PRIMARY Area Under the Plasma Concentration Time Curve From Time Zero to Infinity (AUC0-inf) of [14C]-Pimasertib Following IV Administration on Day 1 |
37.4 | — |
| PRIMARY Area Under the Plasma Concentration Time Curve From Time Zero to Infinity (AUC0-inf) of Pimasertib Following Oral Administration on Day 1 |
957.4 | — |
| PRIMARY Oral Bioavailability of Pimasertib After Single Oral Dose of Unlabeled Pimasertib and Intravenous (IV) Single Tracer Dose of [14C] Pimasertib |
73 | — |
| PRIMARY Mass Balance: Amount of Total Radioactivity Recovered Into the Urine and Feces From Time Zero to the Last Sampling Time Point (Ae0-t) |
52.8; 30.7; 85.1 | — |
| PRIMARY Plasma Concentrations of [14C] Pimasertib |
0.0; 695.2; 691.2; 379.3; 165.6; 46.62 | — |
| PRIMARY Plasma Concentrations of Pimasertib Metabolites |
0.0; 285.2; 262.2; 85.05; 28.58; 0.0 | — |
| PRIMARY Number of Metabolites Identified Overall and as Major |
14; 2 | — |
| SECONDARY Maximum Observed Plasma Concentration (Cmax) of Unlabeled Pimasertib |
265 | — |
| SECONDARY Maximum Observed Plasma Concentration (Cmax) of Intravenous [14C] Pimasertib |
12.67 | — |
| SECONDARY Time to Reach Maximum Plasma Concentration (Tmax) of Unlabeled Pimasertib and Intravenous [14C] Pimasertib |
0.75; 0.5 | — |
| SECONDARY Apparent Terminal Elimination Rate Constant (λz) of Unlabeled Pimasertib and Intravenous [14C] Pimasertib |
0.1096; 0.1994 | — |
| SECONDARY Total Body Clearance of Unlabeled Pimasertib (CL/f) and Intravenous [14C] Pimasertib (CL) |
62.67; 45.73 | — |
| SECONDARY The Volume of Distribution of the Central or Plasma Compartment (Vc) of Intravenous [14C] Pimasertib |
83.668 | — |
| SECONDARY Apparent Volume of Distribution During the Terminal Phase Following Oral Administration (Vz/f) and the Apparent Volume of Distribution During the Terminal Phase Following Intravenous Administration (Vz) of [14C] Pimasertib |
571.77; 229.35 | — |
| SECONDARY Maximum Observed Plasma Concentration (Cmax) of Total [14C] Radioactivity |
774.1 | — |
| SECONDARY Time to Reach Maximum Plasma Concentration (Tmax) of Total [14C] Radioactivity |
1.5 | — |
| SECONDARY Area Under the Plasma Concentration Time Curve From Time Zero to the Last Sampling Time at Which the Concentration is at or Above the Lower Limit of Quantification (AUC0-t) of Total [14C] Radioactivity |
5318 | — |
| SECONDARY Area Under the Plasma Concentration-time Curve From Time Zero to Infinity (AUC0-inf) of Total [14C] Radioactivity |
5711 | — |
| SECONDARY Apparent Terminal Elimination Rate Constant (λz) of Total [14C] Radioactivity |
0.04084 | — |
| SECONDARY Apparent Terminal Half-life (t1/2) of Total [14C] Radioactivity |
14.41 | — |
| SECONDARY Total Body Clearance of Total [14C] Radioactivity From Plasma Following Oral Administration (CL/f) |
10.35 | — |
| SECONDARY Apparent Volume of Distribution of Total [14C] Radioactivity During the Terminal Phase Following Oral Administration (Vz/f) |
253.5 | — |
| SECONDARY Maximum Observed Plasma Concentration (Cmax) of M445 and M554 |
300.93; 174.64 | — |
| SECONDARY Time to Reach Maximum Plasma Concentration (Tmax) of M445 and M554 |
1.5; 4 | — |
| SECONDARY Area Under the Plasma Concentration-time Curve From Time Zero to the Last Sampling Time (AUC0-t) of M445 and M554 |
976.39; 1410.30 | — |
| SECONDARY Area Under the Plasma Concentration-time Curve From Time Zero to Infinity (AUC0-inf) of M445 and M554 |
1134.72; 3135.61 | — |
| SECONDARY Apparent Terminal Elimination Rate Constant (λz) of M445 and M554 |
0.2542; 0.07021 | — |
| SECONDARY Apparent Terminal Half-life (t1/2) of M445 and M554 |
2.653; 10.81 | — |
| SECONDARY Fraction Unbound of [14C] Pimasertib |
6.702 | — |
| SECONDARY Blood/ Plasma Concentration Ratios of Total [14C] Radioactivity |
0.687 | — |
| SECONDARY Part B: Number of Subjects Who Experienced Complete Response (CR), Partial Response (PR), Stable Disease (SD) and Progressive Disease (PD) |
3; 1; 0; 0; 1 | — |
| SECONDARY Number of Subjects With Treatment Emergent Adverse Events (TEAEs), Serious TEAEs, TEAEs Leading to Death, and TEAEs Leading to Discontinuation |
6; 2; 1; 3 | — |
Eligibility Criteria
Inclusion Criteria
- Male subject with pathologically confirmed solid tumor preferentially including, but not limited to pancreatic, thyroid, colorectal, lung, and renal cancer, or melanoma which is locally advanced or metastatic, and either refractory to the respective standard therapy for the disease or for which no effective standard therapy is available
- Subject has measurable and evaluable disease as defined by Response Evaluation Criteria In Solid Tumors version 1.1 (RECIST v.1.1)
- Age greater than or equal to 18 years and less than or equal to 65 years
- Body mass index greater than or equal to 19 and less than or equal to 30 kilogram per meter square (kg/m^2)
- Subject has Eastern Cooperative Oncology Group Performance Status (ECOG PS) of less than or equal to 1
- Male subjects with female partners of childbearing potential must be willing to use an adequate method of contraception during and for 4 weeks after the last dose of the trial medication. During this time, female partners should use a contraceptive method with a failure rate of less than 1 percent
- Subject has read and understood the informed consent form and is willing and able to give written informed consent before any trial related procedures are performed
Exclusion Criteria
- Bone marrow impairment as evidenced by hemoglobin less than 10.0 gram per deciliter (g/dL), neutrophil count less than 1.5 * 10^9 per liter (/L), and/or platelets less than 100 * 10^9/L
- Renal impairment as evidenced by serum creatinine greater than 1.5 * upper limit of normal (ULN) and calculated creatinine clearance less than 60 milliliter per minute (mL/min) (Cockcroft Gault formula)
- Liver function and liver cell integrity abnormality as defined by total bilirubin greater than 1.5 * ULN, or aspartate transaminase (AST)/alanine transaminase (ALT) greater than 2.5 * ULN, for subjects with liver metastases AST/ALT greater than 5 * ULN
- Primary brain tumors or clinical evidence of active brain metastasis. Subjects with a history of previously treated brain tumor are eligible provided that 1 month following treatment they were stable by computed tomography (CT) scan without evidence of cerebral edema, and have no requirements for anticonvulsants or high doses of corticosteroids
- History of gastrointestinal disease, malabsorption syndrome or difficulty in swallowing, which in the investigator's opinion might impair the absorption of pimasertib
- Any gastric, small or large bowel surgery that may impact the absorption of pimasertib
- Known human immunodeficiency virus (HIV) positivity, active hepatitis
- Chemotherapy, radiotherapy, immunotherapy, or molecular targeted cancer therapy within the past 4 weeks or within 5 half-lives of the given drug, whatever is longer, prior to start of trial medication or concomitantly within this trial. This restriction does not apply to steroids and bisphosphonates
- Major surgical procedure within the last 8 weeks prior to start of trial medication
- History of uveitis and scleritis. Retinal pathology beyond normal age-related processes
- History of glaucoma. Subjects are excluded if intraocular pressure is above 21 millimeter of mercury (mmHg)
- Evidence of a retinal vein occlusion (RVO) on fluorescein angiogram or a history of RVO. Subjects are also excluded if on examination an ophthalmologist finds that their optic disc is at risk for a central RVO
- Life expectancy of less than 12 weeks
- Clinically relevant non-malignant disease which in the investigator's opinion would exclude the subject from the trial, such as significant cardiovascular, pulmonary, endocrine, renal and neurological disease or psychiatric disorder
- Treatment with strong inhibitors and/or inducers of cytochrome P450 2C19 (CYP2C19) and cytochrome P450 3A4 (CYP3A4). Consumption of CYP3A4 enzyme inducing or inhibiting herbal drugs, fruit juices and beverages (example, grapefruit, grapefruit juice, quinine [tonic water], star fruit, St John's Wort) within 2 weeks prio
Data sourced from ClinicalTrials.gov (NCT01713036). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.