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Gemcitabine

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Immune Checkpoint Inhibitors

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.

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.

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.

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.

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.

Participants self-administered oral pemigatinib 9 mg QD on Days 1 through 21 of each 21-day cycle.

Participants self-administered oral pemigatinib 13.5 mg QD on Days 1 through 21 of each 21-day cycle.

Participants self-administered oral pemigatinib 20 mg QD on Days 1 through 21 of each 21-day cycle.

Participants self-administered oral pemigatinib 7.5 mg twice daily (BID) on Days 1 through 21 of each 21-day cycle.

Participants self-administered oral pemigatinib 10 mg BID on Days 1 through 21 of each 21-day cycle.

Participants received gemcitabine (Gem) intravenously starting at 1000 mg/meters squared (m\^2) (30 minutes) on Days 1 and 8 of each 21-day cycle. Cisplatin (Cis) was administered intravenously starting at 70 mg/m\^2 (1-4 hours) 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.

Participants received gemcitabine intravenously starting at 1000 mg/m\^2 (30 minutes) on Days 1 and 8 of each 21-day cycle. Cisplatin was administered intravenously starting at 70 mg/m\^2 (1-4 hours) 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.

Trastuzumab (Tras) was administered as an open-label, commercial product at an initial dose of 8 mg/kilograms (kg) over a 90-minute intravenous infusion, followed by 6 mg/kg over a 30- to 90-minute intravenous infusion 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.

Participants received docetaxel (Doc) intravenously starting at 75 mg/m\^2 (1 hour) 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.

Participants received pembrolizumab (Pem) intravenously at 200 mg (30 minutes) 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.

Participants received pembrolizumab intravenously at 200 mg (30 minutes) 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.

Participants received pembrolizumab intravenously at 200 mg (30 minutes) 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.

Retifanlimab (Ref) was administered once every 4 weeks on a 28-day cycle as an open-label product, at an initial dose of 500 mg over a 60-minute intravenous infusion. Participants self-administered oral pemigatinib 9 mg QD on Days 1 through 21 of each 21-day cycle.

Retifanlimab was administered once every 4 weeks on a 28-day cycle as an open-label product, at an initial dose of 500 mg over a 60-minute intravenous infusion. Participants self-administered oral pemigatinib 13.5 mg QD on Days 1 through 21 of each 21-day cycle.

Retifanlimab was administered once every 4 weeks on a 28-day cycle as an open-label product, at an initial dose of 500 mg over a 60-minute intravenous infusion. Participants self-administered oral pemigatinib 20 mg QD on Days 1 through 21 of each 21-day cycle.

Pemigatinib

Retifanlimab

Luis Féliz, MD

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).

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)

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.

E0 was defined as the Baseline serum concentration of phosphate.

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

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

Serum phosphate concentration was assessed throughout Parts 1 and 2.

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.

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.

Cmax was defined as the maximum observed plasma concentration.

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

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

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

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

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

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

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

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

Incyte Corporation

Treatment-emergent adverse events (TEAEs), 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, are reported for all enrolled participants who received at least 1 dose of study drug (Safety Population).

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 in Part 1. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break.

Part 1: Intermittent Pemigatinib 1/2/4 mg QD

Participants self-administered oral pemigatinib 6 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule in Part 1. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break.

Part 1: Intermittent Pemigatinib 6 mg QD

Participants self-administered oral pemigatinib 9 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule in either Part 1 or Part 2. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break.

Parts 1 and 2: Intermittent Pemigatinib 9 mg QD

Participants self-administered oral pemigatinib 13.5 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule in either Part 1 or Part 2. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break.

Parts 1 and 2: Intermittent Pemigatinib 13.5 mg QD

Participants self-administered oral pemigatinib 20 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule in Part 1. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break.

Part 1: Intermittent Pemigatinib 20 mg QD

Participants self-administered oral pemigatinib 9 mg QD on Days 1 through 21 of each 21-day cycle in either Part 1 or Part 2.

Parts 1 and 2: Continuous Pemigatinib 9 mg QD

Participants self-administered oral pemigatinib 13.5 mg QD on Days 1 through 21 of each 21-day cycle in either Part 1 or Part 2.

Parts 1 and 2: Continuous Pemigatinib 13.5 mg QD

Participants self-administered oral pemigatinib 20 mg QD on Days 1 through 21 of each 21-day cycle in either Part 1 or Part 2.

Parts 1 and 2: Continuous Pemigatinib 20 mg QD

Part 1: Continuous Pemigatinib 7.5 mg BID

Part 1: Continuous Pemigatinib 10 mg BID

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.

Part 3: Gem/Cis/Intermittent Pemigatinib 9 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.

Part 3: Gem/Cis/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.

Part 3: Tras/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.

Part 3: Doc/Intermittent Pemigatinib 13.5 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.

Part 3: Pem/Intermittent Pemigatinib 9 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.

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 Days 1 through 21 of each 21-day cycle. It was permissible to continue pemigatinib administration during the toxicity break of pembrolizumab.

Part 3: Pem/Continuous Pemigatinib 13.5 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.

Part 3: Ref/Continuous Pemigatinib 9 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

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 20 mg QD on Days 1 through 21 of each 21-day cycle.

Part 3: Ref/Continuous Pemigatinib 20 mg

Part 1: Intermittent Pemigatinib 9 mg QD

Part 1: Intermittent Pemigatinib 13.5 mg QD

Part 1: Continuous Pemigatinib 9 mg QD

Part 1: Continuous Pemigatinib 13.5 mg QD

Part 1: Continuous Pemigatinib 20 mg QD

Part 2: Intermittent Pemigatinib 9 mg QD

Part 2: Intermittent Pemigatinib 13.5 mg QD

Part 2: Continuous Pemigatinib 9 mg QD

Part 2: Continuous Pemigatinib 13.5 mg QD

Part 2: Continuous Pemigatinib 20 mg QD

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.

Total

Age, Continuous

Sex: Female, Male

Ethnicity (NIH/OMB)

White/Caucasian

Black/African-American

Asian

American-Indian/Alaska Native

Native Hawaiian/Pacific Islander

Captured as Other

Race/Ethnicity, Customized

Study Director

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

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

Part 3: Number of Participants With Any TEAE

Participant self-administered intermittent pemigatinib once daily (QD) or continuous pemigatinib QD or twice daily (BID). Intermittent dosing: participants self-administered oral pemigatinib 1/2/4 milligrams (mg), 6 mg, 9 mg, 13.5 mg, or 20 mg once daily (QD) on a 2-weeks-on therapy and 1-week-off therapy schedule in Part 1 or Part 2. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break. Continuous dosing: participants self-administered oral pemigatinib 9 mg, 13.5 mg, or 20 mg QD on Days 1 through 21 of each 21-day cycle in Part 1 or Part 2. Participants self-administered oral pemigatinib 7.5 mg or 10 mg BID on Days 1 through 21 of each 21-day cycle in Part 1.

Parts 1 and 2: Intermittent or Continuous Pemigatinib

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.

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

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.

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

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

Minimum value in range of highest values for all participants

Maximum value in range of highest values for all participants

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

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

Part 2: Overall Response Rate (ORR)

Part 3: ORR

Participants self-administered oral pemigatinib 1 milligram (mg) once daily (QD) on a 2-weeks-on therapy and 1-week-off therapy schedule in Part 1. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break.

Part 1: Intermittent Pemigatinib 1 mg QD

Participants self-administered oral pemigatinib 2 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule in Part 1. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break.

Part 1: Intermittent Pemigatinib 2 mg QD

Participants self-administered oral pemigatinib 4 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule in Part 1. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break.

Part 1: Intermittent Pemigatinib 4 mg QD

Participants self-administered intermittent or continuous oral pemigatinib 9 mg QD in either Part 1 or Part 2. Intermittent dosing: participants self-administered oral pemigatinib 9 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule in either Part 1 or Part 2. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break. Continuous dosing: participants self-administered oral pemigatinib 9 mg QD on Days 1 through 21 of each 21-day cycle in either Part 1 or Part 2.

Parts 1 and 2: Intermittent/Continuous Pemigatinib 9 mg QD

Participants self-administered intermittent or continuous oral pemigatinib 13.5 mg QD in either Part 1 or Part 2. Intermittent dosing: participants self-administered oral pemigatinib 13.5 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule in either Part 1 or Part 2. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break. Continuous dosing: participants self-administered oral pemigatinib 13.5 mg QD on Days 1 through 21 of each 21-day cycle in either Part 1 or Part 2.

Parts 1 and 2: Intermittent/Continuous Pemigatinib 13.5 mg QD

Participants self-administered intermittent or continuous oral pemigatinib 20 mg QD in either Part 1 or Part 2. Intermittent dosing: participants self-administered oral pemigatinib 20 mg QD on a 2-weeks-on therapy and 1-week-off therapy schedule in Part 1. The treatment cycle consisted of: Days 1 through 14: pemigatinib QD; Days 15 through 21: treatment break. Continuous dosing: participants self-administered oral pemigatinib 20 mg QD on Days 1 through 21 of each 21-day cycle in either Part 1 or Part 2.

Parts 1 and 2: Intermittent/Continuous Pemigatinib 20 mg QD

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

Spots Global Cancer Trial Database for alterations in fgf or fgfr