INCB018424

≥75% improvement in facial Vitiligo Area Scoring Index.

HiSCR75 is defined as at least a 75% reduction from baseline in the total abscess and/or inflammatory nodule (AN) count with no increase from baseline in abscess or draining tunnel count.

Defined as achieving ≥ 75% improvement in Eczema Area and Severity Index (EASI) score from baseline.

GFS will be defined as the elapsed time between the date of transplant to Grade III-IV acute graft-versus host disease (GVHD), chronic GVHD requiring systemic immune suppression, or death by any cause.

EASI75 was defined as achieving a ≥75% improvement in the EASI score compared to the baseline score. The EASI scoring system is a validated scoring system that grades the physical signs of atopic dermatitis (AD) to provide a measure of AD severity (ranging from 0 to 72). The disease severity strata for the EASI are: 0 = clear; 0.1 to 1.0 = almost clear; 1.1 to 7.0 = mild; 7.1 to 21.0 = moderate; 21.1 to 50.0 = severe; 50.1 to 72.0 = very severe.

IGA-TS was defined as achieving an IGA score of 0 or 1 with a ≥2-grade improvement from baseline. The IGA is an overall eczema severity rating on a 0 to 4 scale. 0: clear; no erythema or induration/papulation, no oozing/crusting; there may be minor residual discoloration. 1: almost clear; may be trace faint pink erythema, with almost no induration/papulation, and no oozing/crusting. 2: mild; may be faint pink erythema, with mild induration/papulation and no oozing/crusting. 3: moderate; may be pink-red erythema with moderate induration/papulation and may be some oozing/crusting. 4: severe; may be deep or bright red erythema with severe induration/papulation and with oozing/crusting.

WI-NRS4 was defined as the percentage of participants achieving a ≥4-point improvement (reduction) in Worst-Itch Numeric Rating Scale (WI-NRS) score from baseline. The WI-NRS is a patient-reported outcome comprised of a single item rated on a scale from 0 ("no itch") to 10 ("worst imaginable itch"). Participants assessed their worst level of prurigo nodularis-related itch during the past 24 hours on a scale of 0 to 10. The WI-NRS score for baseline was determined by averaging the 7 daily WI-NRS scores before Day 1 (i.e., Days -7 to -1) for all by-visit summaries. The by-visit WI-NRS score for post-baseline visits was determined by averaging the 7 daily WI-NRS scores before the visit day. Participants with missing Week 12 data for any reason, including treatment discontinuation (due to development of atopic dermatitis lesions or any other cause), were defined as nonresponders.

An adverse event (AE) was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not it was considered drug related. An AE could therefore be any unfavorable or unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of study cream. A TEAE was defined as any AE either reported for the first time or the worsening of a pre-existing event after the first application of study cream and up to 30 days after the last application of study cream.

An AE was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not it was drug related. A TEAE was defined as any AE either reported for the first time or the worsening of a pre-existing event after the first application of study cream and up to 30 days after the last application of study cream. The severity of AEs was assessed using Common Terminology Criteria for Adverse Events version 5.0 (CTCAE v5.0) Grades 1 through 5. Grade 1: mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; treatment not indicated. Grade 2: moderate; minimal, local, or noninvasive treatment indicated; limiting age-appropriate activities of daily living. Grade 3: severe or medically significant but not immediately life threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self-care activities of daily living. Grade 4: life-threatening consequences; urgent treatment indicated. Grade 5: fatal.

The IGA is an overall eczema severity rating on a 5-point scale ranging from 0 (clear skin) to 4 (severe disease). The score is based on an overall assessment of the degree of erythema, induration/papulation, and oozing/crusting. The IGA-TS is defined as an IGA score of 0 (clear skin) or 1 (almost clear skin) with ≥2 grade improvement from Baseline.

Relapse was defined as a loss of 75% improvement from Baseline in the Face Vitiligo Area Scoring Index score (F-VASI75) response, assessed as percentage improvement in the F-VASI score at Baseline (Day 1 of the parent study) to \<75%.

An F-VASI75 responder achieved at least 75% improvement from Baseline in F-VASI, measured by the percentage of vitiligo involvement (percentage of body surface area \[BSA\]) and the degree of depigmentation: 0% (no depigmentation), 10% (only specks of depigmentation), 25% (pigmented area exceeded depigmented area), 50% (depigmented and pigmented area was equal), 75% (depigmented area exceeded pigmented area), 90% (specks of pigment), or 100% (no pigment). The percentage of BSA (hand unit) vitiligo involvement was estimated to the nearest 0.1% by the Investigator using the Palmar Method. The Investigator used his/her hand to mimic the participant's hand size to evaluate the percentage of BSA vitiligo involvement. F-VASI was then derived by multiplying the values assessed for the vitiligo involvement by the percentage of affected skin for each site on the face and summing the values of all sites (possible range: 0-3; lower scores indicate increased improvement).

The IGA is an overall eczema severity rating on a 5-point scale ranging from 0 (clear skin) to 4 (severe disease). The score is based on an overall assessment of the degree of erythema, induration/papulation, and oozing/crusting. The IGA-TS is defined as an IGA score of 0 (clear skin) or 1 (almost clear skin) with ≥ 2 grade improvement from Baseline.

ORR was defined as the percentage of participants in each arm demonstrating a complete response (CR) or partial response (PR) based on chronic GvHD (cGvHD) disease assessments (National Institutes of Health Consensus Criteria) without the requirement of additional systemic therapies for an earlier progression, mixed response, or non-response. Scoring of response was relative to the organ score at the time of randomization. CR: complete resolution of all signs and symptoms of cGVHD in all evaluable organs without the initiation or addition of new systemic therapy. PR: improvement in at least one organ (e.g., improvement of 1 or more points on a 4- to 7-point scale, or an improvement of 2 or more points on a 10- to 12-point scale) without progression in other organs or sites, initiation, or addition of new systemic therapies.

Symptoms of polycythemia vera were assessed using a modified Myeloproliferative Neoplasm Symptom Assessment Form (MPN-SAF) electronic diary. Using the diary, patients rated the following symptoms on a scale from 0 (absent) to 10 (worst imaginable): tiredness, itching, muscle aches, night sweats, and sweats while awake. The total symptom score ranged from 0-50 and was calculated as the sum of the 5 symptom scores. A higher score indicates worse symptoms.

Primary response was defined as having achieved hematocrit control (the absence of phlebotomy eligibility beginning at the Week 8 visit and continuing through Week 32) and Spleen Volume Reduction (a greater than or equal to 35% reduction from baseline in spleen volume at Week 32).

Spleen volume was assessed by magnetic resonance imaging (MRI) or by computed tomography (CT) scans if MRI was not suitable, and analyzed by a blinded central laboratory reader. Patients who withdrew, crossed over to ruxolitinib prior to the visit, or had a missing value at the visit were considered non-responders.

The Investigator's Global Assessment will be performed at study visits 2-6. The IGA is an instrument to rate the severity of the subject's global disease. This IGA is comprised of a 5-point scale of disease activity ranging from 0 to 4 as follows: 0: "clear," no erythema or scale 1. "almost clear," pink erythema without scale 2. "mild," pink erythema with scale 3. "moderate," red erythema with scale 4. "severe," purple/violaceous or hemorrhagic/crusted erythema OR hypertrophic/ verrucous scale Range of scores are 0-4 with higher scores indicating worse outcome.

Number of Participants with Investigator Global Assessment of 0 or 1 at Week 4 IGA Scale from 0-4 Clear 0 No signs of SD Almost Clear 1 Just perceptible erythema and just perceptible scaling Mild 2 Mild erythema and mild scaling Moderate 3 Moderate erythema and moderate scaling Severe 4 Severe erythema and severe scaling

The number of treated accelerated-phase and blast-phase MPN patients (primary cohort) that achieve a best response per 2013 International Working Group (IWG) criteria of either complete response (CR), Partial Response (PR), or complete response with incomplete recovery of counts (CRi), when treated with the combination of ruxolitinib with enasidenib within 6 cycles of combined therapy. Complete Response with incomplete recovery of counts (CRi) - complete remission (\<5% marrow blasts by morphology) with incomplete count recovery (platelet count \<100 x 10\^9\^/L and/or absolute neutrophil count \< 1 x 10\^9\^/L) Complete Response (CR) - full marrow recovery; full count recovery; resolution of disease symptoms; spleen and liver not palpable; no evidence of EMH Partial Response (PR) - morphologic remission in the peripheral blood but not necessarily in the bone marrow; resolution of disease symptoms; spleen and liver not palpable; no evidence of EMH

The number of premalignant breast cells in apoptosis at the time of diagnosis will be compared to the number of cells in apoptosis following treatment with 15 (+/- 5) days of ruxolitinib or placebo.

The proportion of patients with complete re-epithelization, defined as 100% re-epithelialization without any drainage, of the target ulcer at week 24.

Relapse is defined as evidence of disease progression or recurrence based on Lugano criteria or confirmed by biopsy.

GRFS is a composite endpoint of survival without grade III-IV acute GVHD, systemic therapy-requiring chronic GVHD (cGVHD), relapse, or death. Will be evaluated using the Kaplan-Meier method, with median survival and probability of surviving to relevant time points reported with point estimates and 90% confidence intervals separately for each study cohort. Comparisons to Center for International Blood and Marrow Transplant Research (CIBMTR) patients will use log-rank tests.

SGFS will be calculated from the time of transplant to onset of grade 3-4 acute GVHD or death censoring patients alive without grade 3-4 GVHD at last clinical assessment date. The SGFS rate together with 95% confidence interval at day 180 will be estimated by Kaplan-Meier method.

Clinical Benefit Response (CBR):CBR is defined by improvements in clinical symptoms (fatigue, anorexia, fever and night sweats). Laboratory markers like Hemoglobin levels, weight change and lymph node size are included in the CBR. A CBR is considered positive if there is at least a 25% reduction in the size of the largest lymph node (measured by modified Cheson criteria), a significant improvement in at least one laboratory marker (e.g., hemoglobin), and improvement in at least one clinical symptom without worsening of others. Positive response: Relative to baseline, improvement in at least one of the criterion without worsening of any single criterion other than hemoglobin on two consecutive study visits. Negative response: Relative to baseline, worsening of any single criterion other than hemoglobin on two consecutive site visits or failure to achieve improvement for any criterion.

OS is defined as the time from first treatment until the date of death from any cause at the end of the study. Participants who are lost to follow-up will be censored at the time of the last follow-up.

For Arm 1, in patients with Peripheral T-cell Lymphoma (PTCL), the primary objective will be complete response (CR) rate.

For Arm 2, in patients with Cutaneous T-cell Lymphoma (CTCL), the primary objective will be overall response rate (ORR)

To compare GRFS following transplantation of a PBSC product from a MMUD between standard-of-care PTCy-based GVHD prophylaxis (the control arm) and the combination of reduced-dose PTCy, ruxolitinib, tacrolimus, and MMF.

Day 28 response to treatment defined as complete (CR), very good partial (VGPR), or partial (PR) response without intervening therapy or death to ruxolitinib monotherapy. CR - All evaluable organs (skin, liver, GI tract) stage 0. For a response to be scored as CR, the patient must be in CR on the date of assessment and have had no intervening additional GVHD therapy. VGPR - Stage 0 liver and GI and residual stage 1 skin GVHD. For a response to be scored as VGPR, the patient must be in VGPR on the date of assessment and have had no intervening additional GVHD therapy. PR - An improvement by one or more stages in one or more organ involved with GVHD symptoms without worsening in others. For a response to be scored as PR, the patient must be in PR on the date of assessment and have had no intervening additional GVHD therapy.

The improvement of rash is defined on the physician global assessment score (PGA) and on the body surface area (BSA). PGA: measures the overall response to treatment as assessed by the physician; scale 0-4 Reduction of PGA (e.g. PGA 4 to PGA0) will be converted into percentage: decrease of PGA of 1 point on a scale from 0 to 4 shows a decrease of 25%, decrease of 4 points shows a decrease of 100%. This value (percentage of PGA decrease) will be combined with the reduction of BSA (percentage) and will result in the improvement of rash.

The Investigator's Global Assessment-Chronic Hand Eczema (IGA-CHE) is an instrument used to rate the severity of the participant's global CHE and is based on a 5-point scale ranging from 0 (clear) to 4 (severe) (1, almost clear; 2, mild eczema; 3, moderate eczema). IGA-CHE TS is defined as an IGA-CHE score of 0 (clear) or 1 (almost clear) with a ≥2-step improvement from Baseline.

The VNS is a patient-reported measure of vitiligo treatment success that has a 5-point scale. The participant was asked to respond to the following query: "Compared with before treatment, how noticeable is the vitiligo now? Responses: (1) more noticeable, (2) as noticeable, (3) slightly less noticeable, (4) a lot less noticeable, or (5) no longer noticeable. The baseline genital photograph was shown to the participant for reference. A VNS score of 4 or 5 can be interpreted as representing treatment success.

The mixed model repeated measure (MMRM) included the fixed effects of the treatment group (ruxolitinib 1.5% and vehicle cream), stratification factor (Baseline AN count of ≥3 to 4 or ≥5 to 10), visit, and visit-by-treatment interaction. Change from Baseline was calculated as the Week 16 value minus the Baseline value.

The Investigator's Global Assessment (IGA) is a modified global assessment tool to assess the severity of lesions. Grading was based on 0 (clear), 1 (almost clear), 2 (mild), 3 (moderate), and 4 (severe). IGA-TS response was defined as an IGA score of 0 or 1 with a ≥2-grade improvement from Baseline at Week 16.

ITCH4 response was defined as a ≥4-point improvement from Baseline in by-visit Itch Numeric Rating Scale (NRS) score. The Itch NRS is a daily participant-reported measure (24-hour recall) of the worst level of itch intensity. Participants rated itch severity of their lichen sclerosus by selecting a number from 0 (no itch) to 10 (worst imaginable itch) that best described the worst level of itch they experienced in the past 24 hours.

T-VASI was calculated with contributions from 6 body sites. The percentage of vitiligo involvement was estimated in hand units (percentage of body surface area \[BSA\] estimated to nearest 0.1%) by the Investigator using the Palmar Method. The Investigator used his/her hand to mimic the participant's hand size to evaluate percent BSA vitiligo involvement. The degree of depigmentation for each body site was estimated to the nearest percentage: 0% (no depigmentation present), 10% (only specks of depigmentation present), 25% (pigmented area exceeded depigmented area), 50% (depigmented and pigmented area was equal), 75% (depigmented area exceeded pigmented area), 90% (specks of pigment present), 100% (no pigment present). T-VASI was then derived by multiplying the values assessed for the vitiligo involvement by the percentage of affected skin for each body site and summing the values (range: 0-100; lower scores indicate increased improvement).

The EASI scoring system examines 4 areas of the body (head/neck, trunk, upper limbs, and lower limbs) and weights them for participants of at least 8 years of age. Each of the 4 body regions is assessed separately for erythema (E), induration/papulation/edema (I), excoriations (Ex), and lichenification (l) on a scale of 0 to 3 (0 = none, absent; 1 = mild; 2 = moderate; 3 = severe). Half scores are allowed between severities 1, 2, and 3. The final EASI score was obtained by weight-averaging these 4 scores and will range from 0 to 72; the severity strata are as follows: 0 = clear; 0.1 to 1.0 = almost clear; 1.1 to 7.0 = mild; 7.1 to 21.0 = moderate; 21.1 to 50.0 = severe; 50.1 to 72.0 = very severe. Specifically for the head and neck region, the EASI score ranges from 0 to 7.2 An EASI75 responder was defined as a participant achieving a 75% or greater improvement from Baseline in the EASI score for the head and neck.

The intensity of pruritus (itch) was recorded daily using the PP-NRS (24-hour recall period). Participants were asked to assign a numerical score representing their itch at the worst moment during the previous 24 hours on a scale of 0 to 10, with 0 being no itch and 10 being the worst itch imaginable. Change from Baseline was calculated as the post-Baseline value minus the Baseline value. Baseline was defined as the average of all non-missing PP-NRS scores reported during the 7-day run-in period.

Baseline was defined as the last non-missing measurement obtained on or before the first application of study drug. Percentage change from Baseline was calculated as the (\[post-Baseline value minus the Baseline value\] / Baseline value)\*100.

Biologic response to 7-day run-in phase treatment, defined as a change in phosphorylated STAT3 (pSTAT3) expression from moderate/high positive (pSTAT3-positive) in pre-run-in phase sample to negative or weakly positive/equivocal (pSTAT3-negative) in post-run-in samples. pSTAT3 status was determined by evaluating the percent positive cells and the strength of staining (weak vs. strong/moderate) in relation to positive and negative controls. A T-score was calculated based on percent-stained cells and intensity of staining and interpreted as follows: Scores 0-4 are negative/weakly positive (pStat3 negative) and 5-8 are moderate/high positive (pStat3 positive). Hence, pStat3 negative indicates a biologic response or a decrease in pSTAT3 levels.

An F-VASI50 responder achieved at least 50% improvement from Baseline in F-VASI, measured by the percentage of vitiligo involvement (percentage of body surface area \[BSA\]) and the degree of depigmentation: 0% (no depigmentation), 10% (only specks of depigmentation), 25% (pigmented area exceeded depigmented area), 50% (depigmented and pigmented area was equal), 75% (depigmented area exceeded pigmented area), 90% (specks of pigment), or 100% (no pigment). The percentage of BSA (hand unit) vitiligo involvement was estimated to the nearest 0.1% by the Investigator using the Palmar Method. The Investigator used his/her hand to mimic the participant's hand size to evaluate the percentage of BSA vitiligo involvement. F-VASI was then derived by multiplying the values assessed for the vitiligo involvement by the percentage of affected skin for each site on the face and summing the values of all sites (possible range: 0-3; lower scores indicate increased improvement).

Defined as the percentage of participants demonstrating a complete response (CR), very good partial response (VGPR), or partial response (PR).

Subjects will be treated until disease progression or discontinuation criteria are met.

Spleen volume was measured using magnetic resonance imaging (MRI) or computed tomography (CT) scan. The MRIs were read in the central imaging laboratory. Spleen volume was obtained by outlining the circumference of the organ and determining the volume using the technique of least squares. MRI was the preferred method for obtaining spleen volume data. CT scans were performed if the participant was not a candidate for MRI. The CT scans were processed by the same central laboratory used for MRIs. The same method (MRI or CT) was used for all visits for a given participant unless a new contraindication to the use of MRI (eg, pacemaker insertion) occurred.

Spleen volume was measured using magnetic resonance imaging (MRI) or computed tomography (CT) scan. The MRIs were read in the central imaging laboratory. Spleen volume was obtained by outlining the circumference of the organ and determining the volume using the technique of least squares. MRI was the preferred method for obtaining spleen volume data. CT scans were performed if the participant was not a candidate for MRI. The CT scans were processed by the same central laboratory used for MRIs. The same method (MRI or CT) was used for all visits for a given participant unless a new contraindication to the use of MRI (eg, pacemaker insertion) occurred.

Overall survival was measured as the length of time (in days) between the randomization date and the date of death.

Magnetic resonance imaging (MRI) of the upper and lower abdomen and pelvis was performed to assess spleen volumes. Computed tomography (CT) scan was performed if participant was not a candidate for MRI or if MRI was not readily available. MRI was performed with a body coil. Spleen volume was obtained by outlining the circumference of the organ and determining the volume using the validated technique of least squares. The MRI (or CT scan in applicable participants) was performed on the first or second day of the baseline period (ie, Day -7 or Day -6), and the site radiologist sent the scan to the central imaging laboratory that same day. The CT scans were processed by the same central laboratory used for MRIs.

Symptoms of myelofibrosis were assessed using a modified Myelofibrosis Symptom Assessment Form (MFSAF) Version 2.0 diary. Using the diary, patients rated the following symptoms on a scale from 0 (absent) to 10 (worst imaginable): night sweats, itching, abdominal discomfort, pain under ribs on left, feeling of fullness (early satiety), and muscle/bone pain. The total symptom score ranged from 0-60 and was calculated as the sum of the 6 symptom scores. A higher score indicates worse symptoms.

TEAE was defined as adverse events that began or worsened from baseline after the first administration of the study drug. Participants were analyzed based on the number of subjects who received a dose within the dose group. The percentages for each column are calculated using this N. Participants who had more than 1 event in an AE category (eg, treatment-related TEAE) are counted once at each dose level the event occurred.

Participants with platelet count between 50 and 100 × 10\^9/L at the screening and/or baseline visit were enrolled in the study. Thrombocytopenia is defined as a condition with low blood platelet count. Grade 4 thrombocytopenia was platelet count \< 25 × 10\^9/L. Participants were analyzed based on the number of subjects who received a dose within the dose group. The percentages for each column are calculated using this N. Participants who had more than 1 event in an AE category (eg, treatment-related TEAE) are counted once at each dose level the event occurred.

Hemorrhages were defined as any lower level terms by MedDRA included in the Standardized MedDRA Query (SMQ) for hemorrhage terms. Participants were analyzed based on the number of subjects who received a dose within the dose group. The percentages for each column are calculated using this N. Participants who had more than 1 event in an AE category (eg, treatment-related TEAE) are counted once at each dose level the event occurred.

The investigator graded OR according to the International Working Group for Myelofibrosis Research and Therapy criteria for treatment response. As bone marrow biopsies were not taken after baseline, the best achievable response was clinical improvement which required 1 of the following in the absence of progressive disease (PD): (1) A ≥ 2 g/dL increase in hemoglobin level or (2) either a palpable ≥ 50% reduction of splenomegaly of a spleen ≥ 10 cm at baseline or a spleen palpable at \> 5 cm at baseline becoming not palpable. PD required 1 of the following: (1) Progressive splenomegaly defined by the appearance of previously absent splenomegaly that was palpable at \> 5 cm below the left costal margin or a ≥ 100% increase in palpable distance for baseline splenomegaly of 5-10 cm or a ≥ 50% increase in palpable distance for baseline splenomegaly of \> 10 cm or (2) an increase in peripheral blood blast percentage to ≥ 20% that lasted for ≥ 8 weeks. Stable disease: None of the above.

Total Lesion Score is calculated as the sum of component scores for erythema (E), scaling (S), and thickness (T) of the study-treated lesions taken together. Each component consists of ratings of 0=none, 1=mild, 2=moderate, 3=marked, and 4=severe such that total lesion score can vary in value from 0 to 12. A negative change from Baseline indicates improvement.

A responder is defined as a patient with a complete response (negative immunofixation on the serum and urine and disappearance of any soft tissue plasmacytomas and ≤ 5% plasma cells in bone marrow) or a partial response (≥ 50% reduction of serum M-protein and reduction in 24 h urinary M-protein by ≥ 90% or to \< 200 mg per 24 h).

The ACR 20 is defined as ≥ 20% improvement in tender joint count plus ≥ 20% improvement in swollen joint count plus ≥ 20% improvement in 3 of the following 5 criteria: subject's assessment of pain, Subject's global assessment of disease activity (PGA), Physician's global assessment of disease activity (PHGA), subject's self-assessed disability Health Assessment Questionnaire (HAQ), and Erythrocyte sedimentation rate (ESR) or C-reactive protein (CRP), whichever shows the greatest change.

Adverse events reported for the first time or worsening of a pre-existing event after first dose of study drug/treatment

The INCB018424 skin flux was estimated from the overall mean steady-state plasma concentrations for each subject in this study and the estimated systemic clearance of INCB018424 following oral-dose administration in another study.

The INCB018424 bioavailability was estimated from the overall mean steady-state plasma concentrations for each subject in this study and the estimated systemic clearance of INCB018424 following oral-dose administration in another study.

All observed INCB018424 plasma concentrations from Days 8, 15, 22, and 28 were averaged to obtain an overall mean exposure for each subject. Samples were taken pre-dose and approximately one hour post-dose.

The investigator assessed the severity of the clinical signs erythema, scaling, and thickness for each test site by using a 5-point scale from 0 (no evidence) to 4.0 (severe).

The total target lesion score was calculated by summing the scores for erythema, scaling, and thickness for that particular target lesion. The investigator assessed the severity of the clinical signs erythema, scaling, and thickness for each test site by using a 5-point scale from 0 (no evidence) to 4.0 (severe).

A TEAE is any AE either reported for first time or worsening of a pre-existing event after first dose of study drug.

The INCB018424 bioavailability will be estimated from the overall mean steady-state plasma concentrations for each subject in this study and the estimated systemic clearance of INCB018424 following oral-dose administration in another study. Bioavailability is defined as the proportion of a drug which enters the circulation when introduced into the body and so is able to have an active effect.

The RP2D of combination therapy of trametinib, ruxolitinib and retifanlimab (TR\^2) therapy will be determined as the maximum tolerated dose of combination treatment (in mg) as assessed by treating physician using the NCI-CTCAE Version 5.0.

DLTs will be determined for each subject as a binary variable indicating whether or not the subject experienced a DLT during Cycle 1

The maximum tolerated dose (MTD) combination is defined as the dose combination associated with a target probability of dose limiting toxicity (DLT) of 0.25. A dose-limiting toxicity is defined as the MTD with DLTs defined as any grade 3 non-hematologic toxicities despite maximal supportive care or any grade 4 hematologic toxicity. The MTD will be estimated using the time to event continual reassessment method (TITE-CRM). The TITE-CRM will use an empirical dose-toxicity model, with a sample size of 10. The dose-toxicity model is calibrated such that the method will eventually select a dose that yields between 16% and 34% DLT.

Progression free survival (PFS) will be measured every 3 cycles (9 weeks of treatment +/- 4 days). PFS will be defined as the time from patient registration until objective or disease progression or death from any cause. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), at least a 20% increase in the sum of the diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions is also considered progression).

Ruxolitinib MTD in combination with paclitaxel 80 mg/m2 intravenously (IV) weekly is determined by the number of patients who have dose limiting toxicity (DLT). See DLT primary outcome measure for definition * If a DLT was observed in 0 of 3 patients in a cohort, then 3 patients were enrolled to the next cohort using a 5mg higher dose of ruxolitinib. * If a DLT was observed in 1 of 3 patients in a cohort, then 3 additional patients were added, and then if no further DLTs were observed, 3 patients were enrolled to the next cohort using a 5mg higher dose of ruxolitinib. * The MTD is identified as the level BELOW the cohort where DLT occurred in less than one third of patients within the cohort. * If no DLT's are observed, the MTD is not reached.

DLT: (a) grade \>2 non-hematologic, non-hepatic, organ toxicity not due to disease progression or another clearly identified cause except: alopecia of any grade; Grade 3 nausea, vomiting or diarrhea and grade 3 fasting hyperglycemia that resolves to grade\<2 within 3 days and 7 days, respectively, with our without optimal medical management; and grade 3 fasting hyperglycemia within 3 days of glucocorticoid use; (b) grade \>3 thrombocytopenia lasting more than 24 hours or associated with clinically significant bleeding; (c) grade \>3 neutropenia lasting \>4 days or accompanied with fever; (d) grade\>3 anemia; grade\>2 total bilirubin, aspartate and alanine aminotransaminase (AST and ALT), or alkaline phosphatase (ALP) lasting \> 72 hours except: with baseline grade 2 as a result of liver metastases then levels (ALP, AST, ALT) \>10x upper limit of normal is DLT; (e) delay in ability to administer paclitaxel more than 2 weeks due to toxicity.

Safety and efficacy of ruxolitinib when used in combination with decitabine. MTD is defined as the highest dose studied for which the incidence of (Dose Limiting Toxicities) DLT is at least 33%.

Safety and efficacy of ruxolitinib when used in combination with decitabine. DLTs will be defined as those adverse events occurring in the first 5 weeks after initiation of therapy that are not clearly related to disease.

Proportion of patients achieving an Investigators Global Assessment (IGA) score of 0 or 1 with at least a 2-step improvement (IGA treatment success). The Investigator Global Assessment (IGA) will provide information of the overall disease. It is a 5-point scale: clear-1, almost clear-2, mild-3, moderate-4, and severe-5.

Hand Eczema Severity Index (HECSI) , a well-accepted and validated scoring system for disease activity. It incorporates both the extent and the intensity of the disease. Each hand is divided into five areas: fingertips, fingers (except the tips), palms, back of hands and wrists. Each area will be scored for extension and intensity of the six following clinical signs: erythema, induration /papulation, vesicles, fissuring, scaling, and edema; which are graded on the following scale: 0, no skin changes; 1, mild disease; 2, moderate and 3, severe. Data will be reported as a percent change in the HECSI score from baseline to week 12. The score ranges from 0-360.

Will determine the safety and tolerability of ruxolitinib monotherapy (part A) and ruxolitinib plus azacitidine therapy (part B). DLTs will be used to identify a maximum tolerated dose. Dose levels will either be de-escalated, escalated, or retained-according to pre calculated Bayesian Optimal Interval decision rules.

TRAEs of grade 3 and higher experienced during treatment with the doublet of ruxolitinib + azacitidine will be reported (with frequencies and percentages) as a co-primary endpoint. TRAEs are defined as adverse events that are definitely or possibly attributable to study treatment. Will be assessed using Common Terminology Criteria for Adverse Events version 5.0, where adverse events are assessed on a scale of 1-5, with higher scores indicating worse outcomes.

Determine the recommended phase 2 dose of ruxolitinib in combination with a fixed dose of retifanlimab. The recommended phase 2 dose will be determined by assessment of the dose limiting toxicities during the first cycle of treatment.

Number of participants with TEAEs leading to dose interruption or discontinuation

Minimum safe and biologically effective dose will be determined by dose limiting toxicities and overall response rate of the combination regimen, as well as pharmacokinetic and pharmacodynamic markers of fostamatinib (if available)

INCB018424 concentration in plasma.

Number of participants with TEAEs leading to dose interruption or discontinuation.

Defined as any adverse event either reported for the first time or worsening of a pre-existing event after first application of study drug

Within each arm, patient-level toxicity events will be summarized by dose level, major organ category, and grade.

Determined by rate of side effects seen when combination is given

To assess the maximum tolerated dose (MTD) of ruxolitinib in combination with nivolumab in patients with relapsed/refractory Hodgkin lymphoma. (Phase I Only)

To evaluate the best Overall Disease Control (CR+PR+SD) at 3 months of nivolumab in combination with ruxolitinib at MTD in patients with relapsed/refractory Hodgkin lymphoma using the modified Lugano Classification "lymphoma response criteria to immunomodulatory therapy criteria" (LYRIC)1 (Phase II Only)

A TEAE is any adverse event (AE) either reported for the first time or worsening of a pre-existing event after first application of study drug.

MTD will be determined by measuring incidence of the dose-limiting toxicities (DLTs) per dose level, of ruxolitinib in combination with steroids and lenalidomide for MM patients currently with progressive disease.

Safety will be measured by counting the occurrence of adverse events throughout the study, graded via Common Terminology Criteria for Adverse Events (CTCAE) v 4.03 criteria

DLT was defined as the occurrence of any of the following treatment-related toxicities, occurring through Day 28: Any grade ≥ 2 hemorrhagic event ; Any grade thrombocytopenia requiring PLT transfusion; PLT count \< 25x109/L\*; Grade 4 neutropenia (absolute neutrophil count \< 0.5x109/L)\*; Grade ≥ 3 febrile neutropenia\*; Grade ≥ 2 total serum bilirubin with coincident direct bilirubin ≥ 0.5 mg/dL; Grade 3 non-hematologic toxicity for ≥ 7 consecutive days; Grade 4 non-hematologic toxicity. In the dose escalation stage in the core study period, the starting does in both strata was 5mg bid. Successive cohorts of newly enrolled patients received increasing doses of ruxolitinib until the Maximum Safe Starting Dose (MSSD) was determined. Initially, only patients with PLT counts 75-99 x10\^9/L (stratum 1) were allowed to be enrolled. Once safety was established in stratum 1 at the first 2 dose cohorts, eligible population was further expanded to patients with PLT counts 50-74 x10\^9/L (stratum 2).

Treatment-Emergent AEs are events occurring after first drug administration or worsened from baseline. Treatment-Related AEs are those with a definite, probable, possible or missing causality. A serious AE is a medical occurrence that results in death, is life-threatening, requires inpatient hospitalization or prolongation of hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect or is a medical event requiring intervention to prevent 1 of the above. A severe or life-threatening AE is based on intensity, according to National Cancer Institute-Common Toxicity Criteria for Adverse Effects (NCI-CTCAE) v3.0.

Clinical improvement was defined according to the International Working Group Myelofibrosis Research and Treatment criteria, and required 1 of the following: 1. A ≥ 2 g/dL increase in Hemoglobin level or becoming transfusion independent; 2. Either a ≥ 50% reduction in palpable splenomegaly if spleen was ≥ 10 cm at Baseline or a spleen palpable at \> 5 cm at Baseline becomes not palpable; 3. A ≥ 100% increase in platelet count and an absolute platelet count of ≥ 50,000 x 10\^9/L or 4. A ≥ 100% increase in absolute neutrophil count (ANC) and an ANC of ≥ 0.5 x 10\^9/L.

* To establish the utility of using an increase in sBCMA levels \> 25% or IMWG criteria for disease progression to direct this therapeutic approach, TTP will be measured, where TTP is defined as a number of days between the start of treatment (cycle 1 day 1) and PD. PD is defined by either change in sBCMA (≥25% increase from its nadir levels) or by standard IMWG criteria (using sM-protein and SFLC assessments), whichever occurs first. PD will be confirmed by two consecutive tests. * Duration of response 1 (DOR1), defined as the time from the first response to progressive disease as determined by either changes in sBCMA or IMWG criteria (whichever occurs first) while patients are on ruxolitinib and methylprednisolone treatment * Duration of response 2 (DOR2), defined as the time from the first response to progressive disease as determined by standard IMWG criteria while patients on ruxolitinib, lenalidomide and methylprednisolone treatment

To assess toxicity with use of Ruxolitinib in NSCLC (non-small cell lung cancer) cachexia patients, NCI's CTCAE v5.0 toxicity criteria will be used to measure Ruxolitinib-related side effects. Grade 3 or higher events will be recorded.

Body weight will be measured every 2 weeks while on study, including 1 month of follow-up. Both DEXA (dual-energy x-ray absorptiometry) imaging every 2 weeks while on study/follow-up and CT-based imaging with auto-segmentation will provide measures of how Ruxolitinib may be suppressing cachexia-associated adipose and muscle loss.

Anorexia will be assessed with the EORTC QLQ-CAX24 questionnaire as well as direct clinical history taking every 2 weeks on study. Descriptive statistics will be used to report changes.