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Open-Label, Dose-Escalation Study of Pemigatinib in Subjects With Advanced Malignancies - (FIGHT-101)

A Phase 1/2, Open-Label, Dose-Escalation, Safety and Tolerability Study of INCB054828 in Subjects With Advanced Malignancies (FIGHT-101)

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02393248
Enrollment
201
Registered
2015-03-19
Start date
2015-02-27
Completion date
2021-12-17
Last updated
2023-01-06

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

Conditions

Breast Cancer, Cholangiocarcinoma, Endometrial Cancer, Gastric Cancer, Lung Cancer, MPN, Multiple Myeloma, Myeloproliferative Neoplasms, Solid Tumor, UC, Urothelial Cancer

Keywords

alterations in FGF or FGFR, squamous non-small cell lung cancer, gastric cancer, urothelial cancer, endometrial cancer, multiple myeloma, MPN

Brief summary

The purpose of this study will be to evaluate the safety, tolerability, and pharmacological activity of pemigatinib in subjects with advanced malignancies. This study will have three parts, dose escalation (Part 1), dose expansion (Part 2) and combination therapy (Part 3).

Interventions

DRUGPemigatinib
DRUGGemcitabine
DRUGPembrolizumab
DRUGDocetaxel
DRUGTrastuzumab
DRUGRetifanlimab
DRUGCisplatin

Sponsors

Incyte Corporation
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Male or female subjects, age 18 years or older on day of signing consent 2. Part 1: Any advanced solid tumor malignancy; Part 2: Subjects with squamous non-small cell lung cancer, cholangiocarcinoma/gastric cancer, urothelial cancer, breast/endometrial cancer, multiple myeloma, or MPNs that have a tumor or malignancy that has been evaluated and confirmed to harbor genetic alterations in FGF or FGFR genes. A subject's fibroblast growth factor (FGF) or fibroblast growth factor receptor (FGFR) alteration may be based on local or central laboratory results. Part 3: Dose finding: subjects with solid tumor malignancies who qualify for combo therapy; dose-expansion: FGF/FGFR+ subjects qualified to receive combo therapy 3. Has progressed after prior therapy and there is no further effective standard anticancer therapy available (including subject refuses or is intolerant) 4. Life expectancy \> 12 weeks 5. Eastern Cooperative Oncology Group (ECOG) performance status: * Part 1: 0 or 1 * Part 2 and 3: 0, 1, or 2

Exclusion criteria

1. Treatment with other investigational study drug for any indication for any reason, or receipt of anticancer medications within 21 days or 5 half-lives before first dose of study drug 2. Prior receipt of a selective FGFR inhibitor 3. History of a calcium/phosphate homeostasis disorder 4. History and/or current evidence of ectopic mineralization/calcification 5. Current evidence of corneal disorder/keratopathy 6. Has a history or presence of inadequate liver, renal, hematopoietic and/or cardiac function parameters outside protocol-defined range 7. Prior radiotherapy within 2 weeks of study treatment

Design outcomes

Primary

MeasureTime frameDescription
Parts 1 and 2 Combined: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)up to 763 daysAdverse events were defined as the appearance of (or worsening of any pre-existing) undesirable sign(s), symptom(s), or medical condition(s) that occurred after a participant provided informed consent. Abnormal laboratory values or test results that occurred after informed consent constituted AEs only if they induced clinical signs or symptoms, were considered clinically meaningful, required therapy (e.g., hematologic abnormality that required transfusion), or required changes in the study drug(s). TEAEs were defined as adverse events either reported for the first time or the worsening of pre-existing events after the first dose of study drug and within 30 days of the last dose of study drug.
Part 3: Number of Participants With Any TEAEup to 869 daysAdverse events were defined as the appearance of (or worsening of any pre-existing) undesirable sign(s), symptom(s), or medical condition(s) that occurred after a participant provided informed consent. Abnormal laboratory values or test results that occurred after informed consent constituted AEs only if they induced clinical signs or symptoms, were considered clinically meaningful, required therapy (e.g., hematologic abnormality that required transfusion), or required changes in the study drug(s). TEAEs were defined as adverse events either reported for the first time or the worsening of pre-existing events after the first dose of study drug and within 30 days of the last dose of study drug.
E0 Following Once Daily Dosing of Pemigatinib as Monotherapy in Parts 1 and 2predose on Days 1 and 14 of Cycle 1; anytime during visit on Day 1 of Cycle 2 and all subsequent cyclesE0 was defined as the Baseline serum concentration of phosphate.
EC50 Following Once Daily Dosing of Pemigatinib as Monotherapy in Parts 1 and 2predose on Days 1 and 14 of Cycle 1; anytime during visit on Day 1 of Cycle 2 and all subsequent cyclesEC50 was defined as the pemigatinib steady-state area under the plasma or serum concentration-time curve that increases 50% of serum phosphate.
Emax Following Once Daily Dosing of Pemigatinib as Monotherapy in Parts 1 and 2predose on Days 1 and 14 of Cycle 1; anytime during visit on Day 1 of Cycle 2 and all subsequent cyclesEmax was defined as the maximum degree of increasing of serum phosphate by pemigatinib.
Highest Serum Phosphate Concentration Following Pemigatinib as Monotherapy in Parts 1 and 2predose on Days 1 and 14 of Cycle 1; anytime during visit on Day 1 of Cycle 2 and all subsequent cyclesSerum phosphate concentration was assessed throughout Parts 1 and 2.

Secondary

MeasureTime frameDescription
Parts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1Part 1: predose; 0.5, 1, 2, 4, 6, and 8 hours post-dose post-dose on Cycle 1 Day 1. Part 2: predose on Cycle 1 Day 1AUC0-24 was defined as the area under the plasma or serum concentration-time curve from time 0 to 24 hours post-dose.
Parts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)Part 1: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14. Part 2: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14tmax was defined as the time to the maximum observed plasma concentration.
Parts 1 and 2: t1/2 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)Part 1: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14. Part 2: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14t1/2 was defined as the apparent plasma terminal phase disposition half-life.
Parts 1 and 2: Cmin After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)Part 1: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14. Part 2: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14Cmin was defined as the minimum observed plasma concentration over the dose interval.
Parts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)Part 1: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14. Part 2: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14AUC0-24 was defined as the area under the plasma or serum concentration-time curve from time 0 to 24 hours post-dose.
Parts 1 and 2: CL/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)Part 1: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14. Part 2: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14CL/F was defined as the apparent oral dose clearance.
Parts 1 and 2: Vz/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)Part 1: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14. Part 2: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14Vz/F was defined as the apparent volume of distribution.
Parts 1 and 2: Accumulation Ratio After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)Part 1: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14. Part 2: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14The accumulation ratio was defined as the ratio of the accumulation of a drug under steady-state conditions as compared to a single dose.
Parts 1 and 2: Cmax Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) StatesCycles 1 and 2: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Day 14Cmax was defined as the maximum observed plasma concentration.
Parts 1 and 2: Tmax Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) StatesCycles 1 and 2: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Day 14tmax was defined as the time to the maximum observed plasma concentration.
Parts 1 and 2: t1/2 Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) StatesCycles 1 and 2: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Day 14t1/2 was defined as the apparent plasma terminal phase disposition half-life.
Parts 1 and 2: Cmin Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) StatesCycles 1 and 2: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Day 14Cmin was defined as the minimum observed plasma concentration over the dose interval.
Parts 1 and 2: AUC0-24 Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) StatesCycles 1 and 2: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Day 14AUC0-24 was defined as the area under the plasma or serum concentration-time curve from time 0 to 24 hours post-dose.
Parts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)Part 1: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14. Part 2: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14Cmax was defined as the maximum observed plasma concentration.
Parts 1 and 2: Vz/F Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) StatesCycles 1 and 2: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Day 14Vz/F was defined as the apparent volume of distribution.
Part 3: Cmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 1predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 1Cmax was defined as the maximum observed plasma concentration.
Part 3: Tmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 1predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 1tmax was defined as the time to the maximum observed plasma concentration.
Part 3: AUClast of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 1predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 1AUClast was defined as the area under the plasma or serum concentration-time curve from the time of dosing to the last measurable concentration.
Part 3: AUC0-24 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 1predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 1AUC0-24 was defined as the area under the plasma or serum concentration-time curve from time 0 to 24 hours post-dose.
Part 3: Cmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14Cmax was defined as the maximum observed plasma concentration.
Part 3: Tmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14tmax was defined as the time to the maximum observed plasma concentration.
Part 3: t1/2 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14t1/2 was defined as the apparent plasma terminal phase disposition half-life.
Part 3: Cmin of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14Cmin was defined as the minimum observed plasma concentration over the dose interval.
Part 3: AUC0-24 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14AUC0-24 was defined as the area under the plasma or serum concentration-time curve from time 0 to 24 hours post-dose.
Part 3: CL/F of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14CL/F was defined as the apparent oral dose clearance.
Part 3: Vz/F of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14Vz/F was defined as the apparent volume of distribution.
Part 3: Accumulation Ratio of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14The accumulation ratio was defined as the ratio of the accumulation of a drug under steady-state conditions as compared to a single dose.
Parts 1 and 2: CL/F Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) StatesCycles 1 and 2: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Day 14CL/F was defined as the apparent oral dose clearance.
Part 2: Overall Response Rate (ORR)up to 126 daysORR was defined as the percentage of participants with a best overall response of complete response (CR) or partial response (PR), per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1, as determined by the investigator. CR: disappearance of all target and non-target lesions and no appearance of any new lesions. Any pathological lymph nodes (whether target or non-target) must have a reduction in the short axis to \<10 millimeters (mm). PR: complete disappearance or at least a 30% decrease in the sum of the diameters of target lesions, taking as a reference the baseline sum diameters, no new lesions, and no progression of non-target lesions.
Part 3: ORRup to 203 daysORR was defined as the percentage of participants with a best overall response of CR or PR, per RECIST version 1.1, as determined by the investigator. CR: disappearance of all target and non-target lesions and no appearance of any new lesions. Any pathological lymph nodes (whether target or non-target) must have a reduction in the short axis to \<10 millimeters (mm). PR: complete disappearance or at least a 30% decrease in the sum of the diameters of target lesions, taking as a reference the baseline sum diameters, no new lesions, and no progression of non-target lesions.
Parts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1Part 1: predose; 0.5, 1, 2, 4, 6, and 8 hours post-dose post-dose on Cycle 1 Day 1. Part 2: predose on Cycle 1 Day 1Cmax was defined as the maximum observed plasma concentration.
Parts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1Part 1: predose; 0.5, 1, 2, 4, 6, and 8 hours post-dose post-dose on Cycle 1 Day 1. Part 2: predose on Cycle 1 Day 1tmax was defined as the time to the maximum observed plasma concentration.
Parts 1 and 2: AUClast After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1Part 1: predose; 0.5, 1, 2, 4, 6, and 8 hours post-dose post-dose on Cycle 1 Day 1. Part 2: predose on Cycle 1 Day 1AUClast was defined as the area under the plasma or serum concentration-time curve from the time of dosing to the last measurable concentration.

Countries

Denmark, United States

Participant flow

Recruitment details

This study was conducted at 15 study sites: 14 sites in the United States and 1 site in Denmark. The study was conducted in 3 parts. Participants self-administered once daily doses of pemigatinib on a 2-weeks-on/1-week-off therapy (intermittent) or continuous schedule in 21-day cycles. Participants also self-administered twice daily doses of pemigatinib on a continuous schedule.

Participants by arm

ArmCount
Part 1: Intermittent Pemigatinib 1/2/4 mg QD
Participants self-administered oral pemigatinib 1/2/4 milligrams (mg) once daily (QD) on a 2-weeks-on therapy and 1-week-off therapy schedule. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break.
3
Part 1: Intermittent Pemigatinib 6 mg QD
Participants self-administered oral pemigatinib 6 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break.
4
Part 1: Intermittent Pemigatinib 9 mg QD
Participants self-administered oral pemigatinib 9 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break.
3
Part 1: Intermittent Pemigatinib 13.5 mg QD
Participants self-administered oral pemigatinib 13.5 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break.
6
Part 1: Intermittent Pemigatinib 20 mg QD
Participants self-administered oral pemigatinib 20 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break.
6
Part 1: Continuous Pemigatinib 9 mg QD
Participants self-administered oral pemigatinib 9 mg QD on Days 1 through 21 of each 21-day cycle.
9
Part 1: Continuous Pemigatinib 13.5 mg QD
Participants self-administered oral pemigatinib 13.5 mg QD on Days 1 through 21 of each 21-day cycle.
10
Part 1: Continuous Pemigatinib 20 mg QD
Participants self-administered oral pemigatinib 20 mg QD on Days 1 through 21 of each 21-day cycle.
9
Part 1: Continuous Pemigatinib 7.5 mg BID
Participants self-administered oral pemigatinib 7.5 mg twice daily (BID) on Days 1 through 21 of each 21-day cycle.
4
Part 1: Continuous Pemigatinib 10 mg BID
Participants self-administered oral pemigatinib 10 mg BID on Days 1 through 21 of each 21-day cycle.
3
Part 2: Intermittent Pemigatinib 9 mg QD
Participants self-administered oral pemigatinib 9 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break.
4
Part 2: Intermittent Pemigatinib 13.5 mg QD
Participants self-administered oral pemigatinib 13.5 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break.
44
Part 2: Continuous Pemigatinib 9 mg QD
Participants self-administered oral pemigatinib 9 mg QD on Days 1 through 21 of each 21-day cycle.
5
Part 2: Continuous Pemigatinib 13.5 mg QD
Participants self-administered oral pemigatinib 13.5 mg QD on Days 1 through 21 of each 21-day cycle.
20
Part 2: Continuous Pemigatinib 20 mg QD
Participants self-administered oral pemigatinib 20 mg QD on Days 1 through 21 of each 21-day cycle.
6
Part 3: Gem/Cis/Intermittent Pemigatinib 9 mg
Participants received gemcitabine (Gem) intravenously starting at 1000 mg/meters squared (m\^2) on Days 1 and 8 of each 21-day cycle. Cisplatin (Cis) was administered intravenously starting at 70 mg/m\^2 once every 3 weeks on Day 1 of each 21-day cycle. Both gemcitabine and cisplatin doses could have been adjusted for toxicity management per commercial labeling. The investigator could have interrupted, modified, or discontinued chemotherapy with medical monitor approval. Participants self-administered oral pemigatinib 9 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break. It was permissible to continue pemigatinib administration during the toxicity break of gemcitabine/cisplatin.
1
Part 3: Gem/Cis/Intermittent Pemigatinib 13.5 mg
Participants received gemcitabine intravenously starting at 1000 mg/m\^2 on Days 1 and 8 of each 21-day cycle. Cisplatin was administered intravenously starting at 70 mg/m\^2 once every 3 weeks on Day 1 of each 21-day cycle. Both gemcitabine and cisplatin doses could have been adjusted for toxicity management per commercial labeling. The investigator could have interrupted, modified, or discontinued chemotherapy with medical monitor approval. Participants self-administered oral pemigatinib 13.5 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break. It was permissible to continue pemigatinib administration during the toxicity break of gemcitabine/cisplatin.
7
Part 3: Tras/Intermittent Pemigatinib 13.5 mg
Trastuzumab (Tras) was administered as an open-label, commercial product at an initial intravenous dose of 8 mg/kilograms (kg), followed by 6 mg/kg intravenously once every 3 weeks. The dose could have been adjusted for toxicity management, per commercial labeling. The investigator could have interrupted, modified, or discontinued trastuzumab with medical monitor approval. Participants self-administered oral pemigatinib 13.5 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break. It was permissible to continue pemigatinib administration during the toxicity break of trastuzumab.
6
Part 3: Doc/Intermittent Pemigatinib 13.5 mg
Participants received docetaxel (Doc) intravenously starting at 75 mg/m\^2 once every 3 weeks on Day 1 of each cycle. The dose could have been adjusted for toxicity management per commercial labeling. The investigator could have interrupted, modified, or discontinued chemotherapy with medical monitor approval. Participants self-administered oral pemigatinib 13.5 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break. It was permissible to continue pemigatinib administration during the toxicity break of docetaxel.
7
Part 3: Pem/Intermittent Pemigatinib 9 mg
Participants received pembrolizumab (Pem) intravenously at 200 mg once every 3 weeks on Day 1 of each cycle. The dose could have been adjusted for toxicity management per commercial labeling. The investigator could have interrupted, modified, or discontinued pembrolizumab with medical monitor approval. Participants self-administered oral pemigatinib 9 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break. It was permissible to continue pemigatinib administration during the toxicity break of pembrolizumab.
3
Part 3: Pem/Intermittent Pemigatinib 13.5 mg
Participants received pembrolizumab intravenously at 200 mg once every 3 weeks on Day 1 of each cycle. The dose could have been adjusted for toxicity management per commercial labeling. The investigator could have interrupted, modified, or discontinued pembrolizumab with medical monitor approval. Participants self-administered oral pemigatinib 13.5 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break. It was permissible to continue pemigatinib administration during the toxicity break of pembrolizumab.
14
Part 3: Pem/Continuous Pemigatinib 13.5 mg
Participants received pembrolizumab intravenously at 200 mg once every 3 weeks on Day 1 of each cycle. The dose could have been adjusted for toxicity management per commercial labeling. The investigator could have interrupted, modified, or discontinued pembrolizumab with medical monitor approval. Participants self-administered oral pemigatinib 13.5 mg QD on Days 1 through 21 of each 21-day cycle. It was permissible to continue pemigatinib administration during the toxicity break of pembrolizumab.
9
Part 3: Ref/Continuous Pemigatinib 9 mg
Retifanlimab (Ref) was administered once every 4 weeks on a 28-day cycle as an open-label product, at an initial intravenous dose of 500 mg. Participants self-administered oral pemigatinib 9 mg QD on Days 1 through 21 of each 21-day cycle.
7
Part 3: Ref/Continuous Pemigatinib 13.5 mg
Retifanlimab was administered once every 4 weeks on a 28-day cycle as an open-label product, at an initial intravenous dose of 500 mg. Participants self-administered oral pemigatinib 13.5 mg QD on Days 1 through 21 of each 21-day cycle.
9
Part 3: Ref/Continuous Pemigatinib 20 mg
Retifanlimab was administered once every 4 weeks on a 28-day cycle as an open-label product, at an initial intravenous dose of 500 mg. Participants self-administered oral pemigatinib 20 mg QD on Days 1 through 21 of each 21-day cycle.
2
Total201

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009FG010FG011FG012FG013FG014FG015FG016FG017FG018FG019FG020FG021FG022FG023FG024
Part 1: Monotherapy Dose EscalationClinical Decline; Withdrew by Physician0000001000000000000000000
Part 1: Monotherapy Dose EscalationDeath2236665842000000000000000
Part 1: Monotherapy Dose EscalationDisease Progression0100000000000000000000000
Part 1: Monotherapy Dose EscalationLost to Follow-up1000000000000000000000000
Part 1: Monotherapy Dose EscalationStudy Terminated by Sponsor0000022001000000000000000
Part 1: Monotherapy Dose EscalationWithdrawal by Subject0100011000000000000000000
Part 2: Monotherapy Dose ExpansionDeath000000000032941520000000000
Part 2: Monotherapy Dose ExpansionDisease Progression0000000000110000000000000
Part 2: Monotherapy Dose ExpansionStudy Terminated by Sponsor0000000000010300000000000
Part 2: Monotherapy Dose ExpansionWithdrawal by Subject00000000000131230000000000
Part 3: Combination TherapyAdverse Event0000000000000000000000010
Part 3: Combination TherapyDeath0000000000000001755375630
Part 3: Combination TherapyDisease Progression0000000000000000000021000
Part 3: Combination TherapyLost to Follow-up0000000000000000000011000
Part 3: Combination TherapyPlaced on Hospice; Declined Further Follow-up0000000000000000000000010
Part 3: Combination TherapyRolled Over to Another Protocol after Receiving Same Treatment0000000000000000000010000
Part 3: Combination TherapyStudy Terminated by Sponsor0000000000000000011011121
Part 3: Combination TherapyWithdrawal by Subject0000000000000000001021010

Baseline characteristics

CharacteristicPart 1: Intermittent Pemigatinib 1/2/4 mg QDPart 1: Intermittent Pemigatinib 6 mg QDPart 1: Intermittent Pemigatinib 9 mg QDPart 1: Intermittent Pemigatinib 13.5 mg QDPart 1: Intermittent Pemigatinib 20 mg QDPart 1: Continuous Pemigatinib 9 mg QDPart 1: Continuous Pemigatinib 13.5 mg QDPart 1: Continuous Pemigatinib 20 mg QDPart 1: Continuous Pemigatinib 7.5 mg BIDPart 1: Continuous Pemigatinib 10 mg BIDPart 2: Intermittent Pemigatinib 9 mg QDPart 2: Intermittent Pemigatinib 13.5 mg QDPart 2: Continuous Pemigatinib 9 mg QDPart 2: Continuous Pemigatinib 13.5 mg QDPart 2: Continuous Pemigatinib 20 mg QDPart 3: Pem/Intermittent Pemigatinib 13.5 mgPart 3: Gem/Cis/Intermittent Pemigatinib 9 mgPart 3: Gem/Cis/Intermittent Pemigatinib 13.5 mgPart 3: Tras/Intermittent Pemigatinib 13.5 mgPart 3: Doc/Intermittent Pemigatinib 13.5 mgPart 3: Pem/Intermittent Pemigatinib 9 mgPart 3: Pem/Continuous Pemigatinib 13.5 mgPart 3: Ref/Continuous Pemigatinib 9 mgPart 3: Ref/Continuous Pemigatinib 13.5 mgPart 3: Ref/Continuous Pemigatinib 20 mgTotal
Age, Continuous60.7 years
STANDARD_DEVIATION 11.24
45.5 years
STANDARD_DEVIATION 17.31
56.3 years
STANDARD_DEVIATION 4.93
59.0 years
STANDARD_DEVIATION 14.79
56.2 years
STANDARD_DEVIATION 11.89
57.9 years
STANDARD_DEVIATION 15.7
61.2 years
STANDARD_DEVIATION 16.88
56.3 years
STANDARD_DEVIATION 15.19
66.8 years
STANDARD_DEVIATION 4.57
68.7 years
STANDARD_DEVIATION 15.89
50.3 years
STANDARD_DEVIATION 12.39
57.7 years
STANDARD_DEVIATION 11.81
63.8 years
STANDARD_DEVIATION 10.69
57.4 years
STANDARD_DEVIATION 13.78
58.3 years
STANDARD_DEVIATION 8.8
64.7 years
STANDARD_DEVIATION 10.5
61.0 years54.1 years
STANDARD_DEVIATION 10.43
47.8 years
STANDARD_DEVIATION 14.44
62.4 years
STANDARD_DEVIATION 9.16
55.0 years
STANDARD_DEVIATION 15.72
61.8 years
STANDARD_DEVIATION 10.89
63.4 years
STANDARD_DEVIATION 11.43
66.9 years
STANDARD_DEVIATION 8.8
68.0 years
STANDARD_DEVIATION 7.07
59.0 years
STANDARD_DEVIATION 12.61
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants0 Participants2 Participants1 Participants1 Participants0 Participants0 Participants0 Participants1 Participants4 Participants0 Participants4 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants15 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
2 Participants3 Participants3 Participants6 Participants4 Participants8 Participants9 Participants9 Participants4 Participants3 Participants3 Participants39 Participants5 Participants16 Participants6 Participants13 Participants1 Participants7 Participants6 Participants7 Participants3 Participants8 Participants7 Participants9 Participants1 Participants182 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants4 Participants
Race/Ethnicity, Customized
American-Indian/Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants4 Participants
Race/Ethnicity, Customized
Black/African-American
0 Participants0 Participants1 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants7 Participants0 Participants0 Participants0 Participants2 Participants0 Participants1 Participants0 Participants1 Participants1 Participants0 Participants0 Participants0 Participants1 Participants15 Participants
Race/Ethnicity, Customized
Captured as Other
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants1 Participants0 Participants2 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants4 Participants
Race/Ethnicity, Customized
Native Hawaiian/Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
White/Caucasian
3 Participants4 Participants2 Participants6 Participants5 Participants8 Participants10 Participants8 Participants4 Participants3 Participants3 Participants37 Participants5 Participants18 Participants6 Participants10 Participants1 Participants5 Participants6 Participants6 Participants2 Participants9 Participants7 Participants9 Participants1 Participants178 Participants
Sex: Female, Male
Female
2 Participants2 Participants2 Participants3 Participants3 Participants6 Participants5 Participants6 Participants0 Participants2 Participants3 Participants27 Participants5 Participants10 Participants5 Participants5 Participants0 Participants3 Participants4 Participants3 Participants1 Participants3 Participants7 Participants5 Participants1 Participants113 Participants
Sex: Female, Male
Male
1 Participants2 Participants1 Participants3 Participants3 Participants3 Participants5 Participants3 Participants4 Participants1 Participants1 Participants17 Participants0 Participants10 Participants1 Participants9 Participants1 Participants4 Participants2 Participants4 Participants2 Participants6 Participants0 Participants4 Participants1 Participants88 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
EG014
affected / at risk
EG015
affected / at risk
EG016
affected / at risk
EG017
affected / at risk
EG018
affected / at risk
EG019
affected / at risk
deaths
Total, all-cause mortality
3 / 32 / 46 / 737 / 506 / 610 / 1421 / 3010 / 154 / 42 / 31 / 17 / 75 / 65 / 73 / 39 / 146 / 96 / 73 / 90 / 2
other
Total, other adverse events
3 / 33 / 47 / 750 / 506 / 614 / 1430 / 3015 / 154 / 43 / 31 / 17 / 76 / 67 / 73 / 314 / 149 / 97 / 79 / 92 / 2
serious
Total, serious adverse events
1 / 30 / 43 / 721 / 503 / 66 / 1414 / 307 / 152 / 42 / 31 / 13 / 70 / 66 / 71 / 37 / 143 / 94 / 75 / 92 / 2

Outcome results

Primary

E0 Following Once Daily Dosing of Pemigatinib as Monotherapy in Parts 1 and 2

E0 was defined as the Baseline serum concentration of phosphate.

Time frame: predose on Days 1 and 14 of Cycle 1; anytime during visit on Day 1 of Cycle 2 and all subsequent cycles

Population: Pharmacokinetic/Pharmacodynamic (PK/PD) Population: all enrolled participants who had PK/PD data. The average serum concentration of phosphate on Cycle 1 Days 8 and 15 was chosen as a dependent variable for E-R analysis, which was independent of the intermittent dosing and continuous dosing regimens. Therefore, the intermittent dosing and continuous dosing groups from Parts 1 and 2 were combined into a single analysis group for E-R analysis.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDE0 Following Once Daily Dosing of Pemigatinib as Monotherapy in Parts 1 and 23.66 milligrams per deciliter (mg/dL)Geometric Coefficient of Variation 1.91
Primary

EC50 Following Once Daily Dosing of Pemigatinib as Monotherapy in Parts 1 and 2

EC50 was defined as the pemigatinib steady-state area under the plasma or serum concentration-time curve that increases 50% of serum phosphate.

Time frame: predose on Days 1 and 14 of Cycle 1; anytime during visit on Day 1 of Cycle 2 and all subsequent cycles

Population: PK/PD Population. The average serum concentration of phosphate on Cycle 1 Days 8 and 15 was chosen as a dependent variable for E-R analysis, which was independent of the intermittent dosing and continuous dosing regimens. Therefore, the intermittent dosing and continuous dosing groups from Parts 1 and 2 were combined into a single analysis group for E-R analysis.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDEC50 Following Once Daily Dosing of Pemigatinib as Monotherapy in Parts 1 and 21573 hours*nanomolesGeometric Coefficient of Variation 21.6
Primary

Emax Following Once Daily Dosing of Pemigatinib as Monotherapy in Parts 1 and 2

Emax was defined as the maximum degree of increasing of serum phosphate by pemigatinib.

Time frame: predose on Days 1 and 14 of Cycle 1; anytime during visit on Day 1 of Cycle 2 and all subsequent cycles

Population: PK/PD Population. The average serum concentration of phosphate on Cycle 1 Days 8 and 15 was chosen as a dependent variable for E-R analysis, which was independent of the intermittent dosing and continuous dosing regimens. Therefore, the intermittent dosing and continuous dosing groups from Parts 1 and 2 were combined into a single analysis group for E-R analysis.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDEmax Following Once Daily Dosing of Pemigatinib as Monotherapy in Parts 1 and 25.76 mg/dLGeometric Coefficient of Variation 7.76
Primary

Highest Serum Phosphate Concentration Following Pemigatinib as Monotherapy in Parts 1 and 2

Serum phosphate concentration was assessed throughout Parts 1 and 2.

Time frame: predose on Days 1 and 14 of Cycle 1; anytime during visit on Day 1 of Cycle 2 and all subsequent cycles

Population: PK/PD Population. The average serum concentration of phosphate on Cycle 1 Days 8 and 15 was chosen as a dependent variable for E-R analysis, which was independent of the intermittent dosing and continuous dosing regimens. Therefore, the intermittent dosing and continuous dosing groups from Parts 1 and 2 were combined into a single analysis group for E-R analysis.

ArmMeasureGroupValue (NUMBER)
Part 1: Intermittent Pemigatinib 1/2/4 mg QDHighest Serum Phosphate Concentration Following Pemigatinib as Monotherapy in Parts 1 and 2Minimum value in range of highest values for all participants3.5 mg/dL
Part 1: Intermittent Pemigatinib 1/2/4 mg QDHighest Serum Phosphate Concentration Following Pemigatinib as Monotherapy in Parts 1 and 2Maximum value in range of highest values for all participants11.2 mg/dL
Primary

Part 3: Number of Participants With Any TEAE

Adverse events were defined as the appearance of (or worsening of any pre-existing) undesirable sign(s), symptom(s), or medical condition(s) that occurred after a participant provided informed consent. Abnormal laboratory values or test results that occurred after informed consent constituted AEs only if they induced clinical signs or symptoms, were considered clinically meaningful, required therapy (e.g., hematologic abnormality that required transfusion), or required changes in the study drug(s). TEAEs were defined as adverse events either reported for the first time or the worsening of pre-existing events after the first dose of study drug and within 30 days of the last dose of study drug.

Time frame: up to 869 days

Population: Safety Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part 1: Intermittent Pemigatinib 1/2/4 mg QDPart 3: Number of Participants With Any TEAE1 Participants
Part 1: Intermittent Pemigatinib 6 mg QDPart 3: Number of Participants With Any TEAE7 Participants
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDPart 3: Number of Participants With Any TEAE6 Participants
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDPart 3: Number of Participants With Any TEAE7 Participants
Part 1: Intermittent Pemigatinib 20 mg QDPart 3: Number of Participants With Any TEAE3 Participants
Parts 1 and 2: Continuous Pemigatinib 9 mg QDPart 3: Number of Participants With Any TEAE14 Participants
Parts 1 and 2: Continuous Pemigatinib 13.5 mg QDPart 3: Number of Participants With Any TEAE9 Participants
Parts 1 and 2: Continuous Pemigatinib 20 mg QDPart 3: Number of Participants With Any TEAE7 Participants
Part 1: Continuous Pemigatinib 7.5 mg BIDPart 3: Number of Participants With Any TEAE9 Participants
Part 1: Continuous Pemigatinib 10 mg BIDPart 3: Number of Participants With Any TEAE2 Participants
Primary

Parts 1 and 2 Combined: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)

Adverse events were defined as the appearance of (or worsening of any pre-existing) undesirable sign(s), symptom(s), or medical condition(s) that occurred after a participant provided informed consent. Abnormal laboratory values or test results that occurred after informed consent constituted AEs only if they induced clinical signs or symptoms, were considered clinically meaningful, required therapy (e.g., hematologic abnormality that required transfusion), or required changes in the study drug(s). TEAEs were defined as adverse events either reported for the first time or the worsening of pre-existing events after the first dose of study drug and within 30 days of the last dose of study drug.

Time frame: up to 763 days

Population: Safety Population: all enrolled participants who received at least 1 dose of study drug

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2 Combined: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)3 Participants
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2 Combined: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)3 Participants
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDParts 1 and 2 Combined: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)7 Participants
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDParts 1 and 2 Combined: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)50 Participants
Part 1: Intermittent Pemigatinib 20 mg QDParts 1 and 2 Combined: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)6 Participants
Parts 1 and 2: Continuous Pemigatinib 9 mg QDParts 1 and 2 Combined: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)14 Participants
Parts 1 and 2: Continuous Pemigatinib 13.5 mg QDParts 1 and 2 Combined: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)30 Participants
Parts 1 and 2: Continuous Pemigatinib 20 mg QDParts 1 and 2 Combined: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)15 Participants
Part 1: Continuous Pemigatinib 7.5 mg BIDParts 1 and 2 Combined: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)4 Participants
Part 1: Continuous Pemigatinib 10 mg BIDParts 1 and 2 Combined: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)3 Participants
Secondary

Part 2: Overall Response Rate (ORR)

ORR was defined as the percentage of participants with a best overall response of complete response (CR) or partial response (PR), per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1, as determined by the investigator. CR: disappearance of all target and non-target lesions and no appearance of any new lesions. Any pathological lymph nodes (whether target or non-target) must have a reduction in the short axis to \<10 millimeters (mm). PR: complete disappearance or at least a 30% decrease in the sum of the diameters of target lesions, taking as a reference the baseline sum diameters, no new lesions, and no progression of non-target lesions.

Time frame: up to 126 days

Population: Efficacy Evaluable Population: all enrolled participants who received at least 1 dose of study drug

ArmMeasureValue (NUMBER)
Part 1: Intermittent Pemigatinib 1/2/4 mg QDPart 2: Overall Response Rate (ORR)25.0 percentage of participants
Part 1: Intermittent Pemigatinib 6 mg QDPart 2: Overall Response Rate (ORR)4.5 percentage of participants
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDPart 2: Overall Response Rate (ORR)0.0 percentage of participants
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDPart 2: Overall Response Rate (ORR)30.0 percentage of participants
Part 1: Intermittent Pemigatinib 20 mg QDPart 2: Overall Response Rate (ORR)0.0 percentage of participants
Secondary

Part 3: Accumulation Ratio of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)

The accumulation ratio was defined as the ratio of the accumulation of a drug under steady-state conditions as compared to a single dose.

Time frame: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDPart 3: Accumulation Ratio of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)1.65 ratioStandard Deviation 0.501
Part 1: Intermittent Pemigatinib 6 mg QDPart 3: Accumulation Ratio of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)1.53 ratioStandard Deviation 0.381
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDPart 3: Accumulation Ratio of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)0.604 ratioStandard Deviation 0.265
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDPart 3: Accumulation Ratio of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)1.52 ratioStandard Deviation 0.772
Part 1: Intermittent Pemigatinib 20 mg QDPart 3: Accumulation Ratio of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)1.90 ratioStandard Deviation 0.432
Secondary

Part 3: AUC0-24 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 1

AUC0-24 was defined as the area under the plasma or serum concentration-time curve from time 0 to 24 hours post-dose.

Time frame: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 1

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDPart 3: AUC0-24 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 11550 hr*ng/mLStandard Deviation 552
Part 1: Intermittent Pemigatinib 6 mg QDPart 3: AUC0-24 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 11910 hr*ng/mLStandard Deviation 838
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDPart 3: AUC0-24 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 12920 hr*ng/mLStandard Deviation 1070
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDPart 3: AUC0-24 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 11890 hr*ng/mLStandard Deviation 471
Part 1: Intermittent Pemigatinib 20 mg QDPart 3: AUC0-24 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 11890 hr*ng/mLStandard Deviation 269
Secondary

Part 3: AUC0-24 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)

AUC0-24 was defined as the area under the plasma or serum concentration-time curve from time 0 to 24 hours post-dose.

Time frame: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDPart 3: AUC0-24 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)2400 hr*ng/mLStandard Deviation 628
Part 1: Intermittent Pemigatinib 6 mg QDPart 3: AUC0-24 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)2400 hr*ng/mLStandard Deviation 967
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDPart 3: AUC0-24 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)1650 hr*ng/mLStandard Deviation 1060
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDPart 3: AUC0-24 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)2910 hr*ng/mLStandard Deviation 1390
Part 1: Intermittent Pemigatinib 20 mg QDPart 3: AUC0-24 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)3440 hr*ng/mLStandard Deviation 672
Secondary

Part 3: AUClast of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 1

AUClast was defined as the area under the plasma or serum concentration-time curve from the time of dosing to the last measurable concentration.

Time frame: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 1

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDPart 3: AUClast of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 11480 hr*ng/mLStandard Deviation 587
Part 1: Intermittent Pemigatinib 6 mg QDPart 3: AUClast of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 11880 hr*ng/mLStandard Deviation 821
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDPart 3: AUClast of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 12890 hr*ng/mLStandard Deviation 1010
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDPart 3: AUClast of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 11890 hr*ng/mLStandard Deviation 491
Part 1: Intermittent Pemigatinib 20 mg QDPart 3: AUClast of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 12040 hr*ng/mLStandard Deviation 513
Secondary

Part 3: CL/F of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)

CL/F was defined as the apparent oral dose clearance.

Time frame: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDPart 3: CL/F of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)8.03 L/hrStandard Deviation 1.89
Part 1: Intermittent Pemigatinib 6 mg QDPart 3: CL/F of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)13.4 L/hrStandard Deviation 5.46
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDPart 3: CL/F of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)24.5 L/hrStandard Deviation 17.7
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDPart 3: CL/F of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)12.7 L/hrStandard Deviation 9.03
Part 1: Intermittent Pemigatinib 20 mg QDPart 3: CL/F of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)8.26 L/hrStandard Deviation 1.39
Secondary

Part 3: Cmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 1

Cmax was defined as the maximum observed plasma concentration.

Time frame: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 1

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDPart 3: Cmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 1137 ng/mLStandard Deviation 65.7
Part 1: Intermittent Pemigatinib 6 mg QDPart 3: Cmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 1199 ng/mLStandard Deviation 99.6
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDPart 3: Cmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 1234 ng/mLStandard Deviation 84.1
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDPart 3: Cmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 1214 ng/mLStandard Deviation 98.2
Part 1: Intermittent Pemigatinib 20 mg QDPart 3: Cmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 1259 ng/mLStandard Deviation 55.4
Secondary

Part 3: Cmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)

Cmax was defined as the maximum observed plasma concentration.

Time frame: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDPart 3: Cmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)166 ng/mLStandard Deviation 52.1
Part 1: Intermittent Pemigatinib 6 mg QDPart 3: Cmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)255 ng/mLStandard Deviation 119
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDPart 3: Cmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)214 ng/mLStandard Deviation 203
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDPart 3: Cmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)231 ng/mLStandard Deviation 99.4
Part 1: Intermittent Pemigatinib 20 mg QDPart 3: Cmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)404 ng/mLStandard Deviation 41.7
Secondary

Part 3: Cmin of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)

Cmin was defined as the minimum observed plasma concentration over the dose interval.

Time frame: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDPart 3: Cmin of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)58.0 ng/mLStandard Deviation 31.6
Part 1: Intermittent Pemigatinib 6 mg QDPart 3: Cmin of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)56.6 ng/mLStandard Deviation 31.3
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDPart 3: Cmin of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)48.5 ng/mLStandard Deviation 57.8
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDPart 3: Cmin of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)63.1 ng/mLStandard Deviation 32.4
Part 1: Intermittent Pemigatinib 20 mg QDPart 3: Cmin of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)64.2 ng/mLStandard Deviation 25.8
Secondary

Part 3: ORR

ORR was defined as the percentage of participants with a best overall response of CR or PR, per RECIST version 1.1, as determined by the investigator. CR: disappearance of all target and non-target lesions and no appearance of any new lesions. Any pathological lymph nodes (whether target or non-target) must have a reduction in the short axis to \<10 millimeters (mm). PR: complete disappearance or at least a 30% decrease in the sum of the diameters of target lesions, taking as a reference the baseline sum diameters, no new lesions, and no progression of non-target lesions.

Time frame: up to 203 days

Population: Efficacy Evaluable Population

ArmMeasureValue (NUMBER)
Part 1: Intermittent Pemigatinib 1/2/4 mg QDPart 3: ORR0.0 percentage of participants
Part 1: Intermittent Pemigatinib 6 mg QDPart 3: ORR42.9 percentage of participants
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDPart 3: ORR0.0 percentage of participants
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDPart 3: ORR14.3 percentage of participants
Part 1: Intermittent Pemigatinib 20 mg QDPart 3: ORR0.0 percentage of participants
Parts 1 and 2: Continuous Pemigatinib 9 mg QDPart 3: ORR28.6 percentage of participants
Parts 1 and 2: Continuous Pemigatinib 13.5 mg QDPart 3: ORR33.3 percentage of participants
Parts 1 and 2: Continuous Pemigatinib 20 mg QDPart 3: ORR0.0 percentage of participants
Part 1: Continuous Pemigatinib 7.5 mg BIDPart 3: ORR22.2 percentage of participants
Part 1: Continuous Pemigatinib 10 mg BIDPart 3: ORR0.0 percentage of participants
Secondary

Part 3: t1/2 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)

t1/2 was defined as the apparent plasma terminal phase disposition half-life.

Time frame: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDPart 3: t1/2 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)15.3 hrStandard Deviation 0.207
Part 1: Intermittent Pemigatinib 6 mg QDPart 3: t1/2 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)17.0 hrStandard Deviation 6.9
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDPart 3: t1/2 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)10.6 hrStandard Deviation 3.29
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDPart 3: t1/2 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)14.7 hrStandard Deviation 6.43
Part 1: Intermittent Pemigatinib 20 mg QDPart 3: t1/2 of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)15.3 hrStandard Deviation 2.64
Secondary

Part 3: Tmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 1

tmax was defined as the time to the maximum observed plasma concentration.

Time frame: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 1

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEDIAN)
Part 1: Intermittent Pemigatinib 1/2/4 mg QDPart 3: Tmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 11.98 hr
Part 1: Intermittent Pemigatinib 6 mg QDPart 3: Tmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 11.05 hr
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDPart 3: Tmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 12.00 hr
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDPart 3: Tmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 11.00 hr
Part 1: Intermittent Pemigatinib 20 mg QDPart 3: Tmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 10.783 hr
Secondary

Part 3: Tmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)

tmax was defined as the time to the maximum observed plasma concentration.

Time frame: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEDIAN)
Part 1: Intermittent Pemigatinib 1/2/4 mg QDPart 3: Tmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)5.78 hr
Part 1: Intermittent Pemigatinib 6 mg QDPart 3: Tmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)1.08 hr
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDPart 3: Tmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)1.50 hr
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDPart 3: Tmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)1.90 hr
Part 1: Intermittent Pemigatinib 20 mg QDPart 3: Tmax of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)0.583 hr
Secondary

Part 3: Vz/F of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)

Vz/F was defined as the apparent volume of distribution.

Time frame: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDPart 3: Vz/F of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)177 LitersStandard Deviation 39.8
Part 1: Intermittent Pemigatinib 6 mg QDPart 3: Vz/F of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)303 LitersStandard Deviation 136
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDPart 3: Vz/F of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)376 LitersStandard Deviation 261
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDPart 3: Vz/F of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)227 LitersStandard Deviation 82.2
Part 1: Intermittent Pemigatinib 20 mg QDPart 3: Vz/F of Pemigatinib as Part of Combination Therapy on Cycle 1 Day 14 (Steady State)182 LitersStandard Deviation 43.2
Secondary

Parts 1 and 2: Accumulation Ratio After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)

The accumulation ratio was defined as the ratio of the accumulation of a drug under steady-state conditions as compared to a single dose.

Time frame: Part 1: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14. Part 2: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: Accumulation Ratio After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)1.09 ratio
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: Accumulation Ratio After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)1.64 ratio
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDParts 1 and 2: Accumulation Ratio After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)1.36 ratio
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDParts 1 and 2: Accumulation Ratio After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)1.67 ratioStandard Deviation 0.264
Part 1: Intermittent Pemigatinib 20 mg QDParts 1 and 2: Accumulation Ratio After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)1.71 ratioStandard Deviation 0.534
Parts 1 and 2: Continuous Pemigatinib 9 mg QDParts 1 and 2: Accumulation Ratio After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)1.69 ratioStandard Deviation 0.538
Parts 1 and 2: Continuous Pemigatinib 13.5 mg QDParts 1 and 2: Accumulation Ratio After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)1.76 ratioStandard Deviation 0.476
Secondary

Parts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1

AUC0-24 was defined as the area under the plasma or serum concentration-time curve from time 0 to 24 hours post-dose.

Time frame: Part 1: predose; 0.5, 1, 2, 4, 6, and 8 hours post-dose post-dose on Cycle 1 Day 1. Part 2: predose on Cycle 1 Day 1

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1191 hr*ng/mL
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1NA hr*ng/mL
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDParts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 11010 hr*ng/mL
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDParts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1644 hr*ng/mLStandard Deviation 115
Part 1: Intermittent Pemigatinib 20 mg QDParts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 11150 hr*ng/mLStandard Deviation 497
Parts 1 and 2: Continuous Pemigatinib 9 mg QDParts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 11840 hr*ng/mLStandard Deviation 1080
Parts 1 and 2: Continuous Pemigatinib 13.5 mg QDParts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 12850 hr*ng/mLStandard Deviation 1050
Secondary

Parts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)

AUC0-24 was defined as the area under the plasma or serum concentration-time curve from time 0 to 24 hours post-dose.

Time frame: Part 1: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14. Part 2: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)208 hr*ng/mL
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)322 hr*ng/mL
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDParts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)1380 hr*ng/mL
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDParts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)1080 hr*ng/mLStandard Deviation 301
Part 1: Intermittent Pemigatinib 20 mg QDParts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)2180 hr*ng/mLStandard Deviation 1630
Parts 1 and 2: Continuous Pemigatinib 9 mg QDParts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)3010 hr*ng/mLStandard Deviation 1890
Parts 1 and 2: Continuous Pemigatinib 13.5 mg QDParts 1 and 2: AUC0-24 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)4350 hr*ng/mLStandard Deviation 1480
p-value: 0.8577ANOVA
p-value: 0.7238ANOVA
p-value: 0.5923ANOVA
p-value: 0.7634ANOVA
p-value: 0.5749ANOVA
p-value: 0.6877ANOVA
Secondary

Parts 1 and 2: AUC0-24 Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States

AUC0-24 was defined as the area under the plasma or serum concentration-time curve from time 0 to 24 hours post-dose.

Time frame: Cycles 1 and 2: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Day 14

Population: PK/PD Population. Only participants who participated in the food-effect study in Part 2 were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: AUC0-24 Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States2580 hr*ng/mLStandard Deviation 999
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: AUC0-24 Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States2910 hr*ng/mLStandard Deviation 1310
p-value: 0.305ANOVA
Secondary

Parts 1 and 2: AUClast After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1

AUClast was defined as the area under the plasma or serum concentration-time curve from the time of dosing to the last measurable concentration.

Time frame: Part 1: predose; 0.5, 1, 2, 4, 6, and 8 hours post-dose post-dose on Cycle 1 Day 1. Part 2: predose on Cycle 1 Day 1

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: AUClast After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1190 hr*ng/mL
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: AUClast After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 168.8 hr*ng/mL
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDParts 1 and 2: AUClast After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 11010 hr*ng/mL
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDParts 1 and 2: AUClast After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1641 hr*ng/mLStandard Deviation 116
Part 1: Intermittent Pemigatinib 20 mg QDParts 1 and 2: AUClast After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 11140 hr*ng/mLStandard Deviation 498
Parts 1 and 2: Continuous Pemigatinib 9 mg QDParts 1 and 2: AUClast After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 11820 hr*ng/mLStandard Deviation 1210
Parts 1 and 2: Continuous Pemigatinib 13.5 mg QDParts 1 and 2: AUClast After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 12510 hr*ng/mLStandard Deviation 935
Secondary

Parts 1 and 2: CL/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)

CL/F was defined as the apparent oral dose clearance.

Time frame: Part 1: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14. Part 2: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: CL/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)9.86 Liters per hr (L/hr)
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: CL/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)12.8 Liters per hr (L/hr)
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDParts 1 and 2: CL/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)5.93 Liters per hr (L/hr)
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDParts 1 and 2: CL/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)12.0 Liters per hr (L/hr)Standard Deviation 3.14
Part 1: Intermittent Pemigatinib 20 mg QDParts 1 and 2: CL/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)15.7 Liters per hr (L/hr)Standard Deviation 17.7
Parts 1 and 2: Continuous Pemigatinib 9 mg QDParts 1 and 2: CL/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)11.9 Liters per hr (L/hr)Standard Deviation 5.72
Parts 1 and 2: Continuous Pemigatinib 13.5 mg QDParts 1 and 2: CL/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)10.3 Liters per hr (L/hr)Standard Deviation 3.01
Secondary

Parts 1 and 2: CL/F Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States

CL/F was defined as the apparent oral dose clearance.

Time frame: Cycles 1 and 2: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Day 14

Population: PK/PD Population. Only participants who participated in the food-effect study in Part 2 were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: CL/F Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States12.4 L/hrStandard Deviation 4.94
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: CL/F Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States11.3 L/hrStandard Deviation 4.87
p-value: 0.305ANOVA
Secondary

Parts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1

Cmax was defined as the maximum observed plasma concentration.

Time frame: Part 1: predose; 0.5, 1, 2, 4, 6, and 8 hours post-dose post-dose on Cycle 1 Day 1. Part 2: predose on Cycle 1 Day 1

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 125.3 nanograms per milliliter (ng/mL)
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 113.6 nanograms per milliliter (ng/mL)
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDParts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1109 nanograms per milliliter (ng/mL)
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDParts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 164.6 nanograms per milliliter (ng/mL)Standard Deviation 9.16
Part 1: Intermittent Pemigatinib 20 mg QDParts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1139 nanograms per milliliter (ng/mL)Standard Deviation 79.8
Parts 1 and 2: Continuous Pemigatinib 9 mg QDParts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1196 nanograms per milliliter (ng/mL)Standard Deviation 121
Parts 1 and 2: Continuous Pemigatinib 13.5 mg QDParts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1300 nanograms per milliliter (ng/mL)Standard Deviation 135
Secondary

Parts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)

Cmax was defined as the maximum observed plasma concentration.

Time frame: Part 1: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14. Part 2: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)26.2 ng/mL
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)22.9 ng/mL
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDParts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)103 ng/mL
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDParts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)86.1 ng/mLStandard Deviation 38
Part 1: Intermittent Pemigatinib 20 mg QDParts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)196 ng/mLStandard Deviation 123
Parts 1 and 2: Continuous Pemigatinib 9 mg QDParts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)271 ng/mLStandard Deviation 151
Parts 1 and 2: Continuous Pemigatinib 13.5 mg QDParts 1 and 2: Cmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)449 ng/mLStandard Deviation 172
p-value: 0.2841ANOVA
p-value: 0.3042ANOVA
p-value: 0.1259ANOVA
p-value: 0.8214ANOVA
p-value: 0.4315ANOVA
p-value: 0.2595ANOVA
Secondary

Parts 1 and 2: Cmax Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States

Cmax was defined as the maximum observed plasma concentration.

Time frame: Cycles 1 and 2: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Day 14

Population: PK/PD Population. Only participants who participated in the food-effect study in Part 2 were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: Cmax Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States215 ng/mLStandard Deviation 86.5
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: Cmax Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States179 ng/mLStandard Deviation 82.8
p-value: 0.143ANOVA
Secondary

Parts 1 and 2: Cmin After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)

Cmin was defined as the minimum observed plasma concentration over the dose interval.

Time frame: Part 1: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14. Part 2: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: Cmin After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)3.24 ng/mL
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: Cmin After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)7.87 ng/mL
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDParts 1 and 2: Cmin After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)23.9 ng/mL
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDParts 1 and 2: Cmin After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)30.0 ng/mLStandard Deviation 15.1
Part 1: Intermittent Pemigatinib 20 mg QDParts 1 and 2: Cmin After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)49.9 ng/mLStandard Deviation 49.6
Parts 1 and 2: Continuous Pemigatinib 9 mg QDParts 1 and 2: Cmin After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)71.7 ng/mLStandard Deviation 56.7
Parts 1 and 2: Continuous Pemigatinib 13.5 mg QDParts 1 and 2: Cmin After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)104 ng/mLStandard Deviation 93.3
Secondary

Parts 1 and 2: Cmin Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States

Cmin was defined as the minimum observed plasma concentration over the dose interval.

Time frame: Cycles 1 and 2: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Day 14

Population: PK/PD Population. Only participants who participated in the food-effect study in Part 2 were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: Cmin Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States61.1 ng/mLStandard Deviation 33.5
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: Cmin Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States65.7 ng/mLStandard Deviation 34.7
p-value: 0.128ANOVA
Secondary

Parts 1 and 2: t1/2 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)

t1/2 was defined as the apparent plasma terminal phase disposition half-life.

Time frame: Part 1: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14. Part 2: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: t1/2 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)10.9 hr
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: t1/2 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)18.1 hr
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDParts 1 and 2: t1/2 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)30.4 hr
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDParts 1 and 2: t1/2 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)21.0 hrStandard Deviation 22.8
Part 1: Intermittent Pemigatinib 20 mg QDParts 1 and 2: t1/2 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)17.2 hrStandard Deviation 9.7
Parts 1 and 2: Continuous Pemigatinib 9 mg QDParts 1 and 2: t1/2 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)17.4 hrStandard Deviation 9.64
Parts 1 and 2: Continuous Pemigatinib 13.5 mg QDParts 1 and 2: t1/2 After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)13.1 hrStandard Deviation 6.01
Secondary

Parts 1 and 2: t1/2 Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States

t1/2 was defined as the apparent plasma terminal phase disposition half-life.

Time frame: Cycles 1 and 2: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Day 14

Population: PK/PD Population. Only participants who participated in the food-effect study in Part 2 were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: t1/2 Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States19.2 hrStandard Deviation 10.5
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: t1/2 Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States23.8 hrStandard Deviation 17.5
p-value: 0.319ANOVA
Secondary

Parts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 1

tmax was defined as the time to the maximum observed plasma concentration.

Time frame: Part 1: predose; 0.5, 1, 2, 4, 6, and 8 hours post-dose post-dose on Cycle 1 Day 1. Part 2: predose on Cycle 1 Day 1

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEDIAN)
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 11 hours (hr)
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 15.92 hours (hr)
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDParts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 12.02 hours (hr)
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDParts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 11.14 hours (hr)
Part 1: Intermittent Pemigatinib 20 mg QDParts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 11.17 hours (hr)
Parts 1 and 2: Continuous Pemigatinib 9 mg QDParts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 11.20 hours (hr)
Parts 1 and 2: Continuous Pemigatinib 13.5 mg QDParts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Day 11.98 hours (hr)
Secondary

Parts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)

tmax was defined as the time to the maximum observed plasma concentration.

Time frame: Part 1: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14. Part 2: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEDIAN)
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)1.07 hr
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)3.98 hr
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDParts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)2.02 hr
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDParts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)1.58 hr
Part 1: Intermittent Pemigatinib 20 mg QDParts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)1.00 hr
Parts 1 and 2: Continuous Pemigatinib 9 mg QDParts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)1.13 hr
Parts 1 and 2: Continuous Pemigatinib 13.5 mg QDParts 1 and 2: Tmax After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)1.12 hr
Secondary

Parts 1 and 2: Tmax Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States

tmax was defined as the time to the maximum observed plasma concentration.

Time frame: Cycles 1 and 2: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Day 14

Population: PK/PD Population. Only participants who participated in the food-effect study in Part 2 were analyzed.

ArmMeasureValue (MEDIAN)
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: Tmax Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States1.58 hr
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: Tmax Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States4.02 hr
p-value: 0.0013ANOVA
Secondary

Parts 1 and 2: Vz/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)

Vz/F was defined as the apparent volume of distribution.

Time frame: Part 1: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14. Part 2: predose on Cycle 1 Days 8 and 14; 0.5, 1, 2, 4, 6, and 8 hours post-dose on Cycle 1 Day 14

Population: PK/PD Population. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: Vz/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)156 Liters
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: Vz/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)334 Liters
Parts 1 and 2: Intermittent Pemigatinib 9 mg QDParts 1 and 2: Vz/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)260 Liters
Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QDParts 1 and 2: Vz/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)301 LitersStandard Deviation 241
Part 1: Intermittent Pemigatinib 20 mg QDParts 1 and 2: Vz/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)246 LitersStandard Deviation 76.1
Parts 1 and 2: Continuous Pemigatinib 9 mg QDParts 1 and 2: Vz/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)274 LitersStandard Deviation 165
Parts 1 and 2: Continuous Pemigatinib 13.5 mg QDParts 1 and 2: Vz/F After Once Daily Dosing of Pemigatinib as Monotherapy on Cycle 1 Days 8 and 14 (Steady State)180 LitersStandard Deviation 49.1
Secondary

Parts 1 and 2: Vz/F Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States

Vz/F was defined as the apparent volume of distribution.

Time frame: Cycles 1 and 2: predose and 0.5, 1, 2, 4, 6, and 8 hours post-dose on Day 14

Population: PK/PD Population. Only participants who participated in the food-effect study in Part 2 were analyzed.

ArmMeasureValue (MEAN)Dispersion
Part 1: Intermittent Pemigatinib 1/2/4 mg QDParts 1 and 2: Vz/F Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States307 LitersStandard Deviation 139
Part 1: Intermittent Pemigatinib 6 mg QDParts 1 and 2: Vz/F Steady State Following Administration of Pemigatinib in the Fasted (Cycle 1 Day 14) and Fed (Cycle 2 Day 14) States364 LitersStandard Deviation 262
p-value: 0.772ANOVA

Source: ClinicalTrials.gov · Data processed: Feb 26, 2026