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Trial · NCT03696212

Registered outcomes15

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimarySafety and tolerability of grapiprant in combination with pembrolizumabUp to 90 days after the end of treatment (average of 7 months)Number of incidence, severity, relationship, concomitant medications administered, and duration of treatment emergent adverse events using CTCAE v5.0
PrimaryDefine the recommended phase 2 dose (RP2D) of grapiprant combined with pembrolizumabThrough Cycle 1 (21 days)Number, incidence and severity of treatment related adverse events as assessed by CTCAE 5.0
PrimaryObjective response rate (ORR)7 monthsProportion of participants who achieved PR or better during the study per RECIST 1.1 and iRECIST
SecondaryProgression-free survival (PFS)Up to 12 monthsParticipants who discontinue treatment without disease progression
SecondaryOverall survival (OS)Up to 2 years from start of study drugDate of study drug to date of death due to any cause
SecondaryDuration of treatment (DoT)7 monthsDisease response for time of duration on treatment
SecondaryDisease control rate (DCR)7 monthsPercentage of patients who have achieved CR, PR and stable disease
SecondaryDuration of response (DoR)Up to 12 monthsTime from documentation of tumor response to disease progression per RECIST and iRECIST 1.1
SecondaryPK of grapiprant: AUCDays 1 and 2 of first 2 cycles (every 21 days), followed by Day 1 of every even cycle beginning with Cycle 4 (every 42 days) through end of treatment (average of 4 months).Area under the plasma concentration-time curve
SecondaryPK of grapiprant: CmaxDays 1 and 2 of first 2 cycles (every 21 days), followed by Day 1 of every even cycle beginning with Cycle 4 (every 42 days) through end of treatment (average of 4 months).Peak serum concentration of grapiprant
SecondaryPlasma decay half-life (t1/2)Days 1 and 2 of first 2 cycles (every 21 days), followed by Day 1 of every even cycle beginning with Cycle 4 (every 42 days) through end of treatment (average of 4 months).Measurement of half-life of grapiprant after dosing
SecondaryApparent oral clearance (CL/F)Days 1 and 2 of first 2 cycles (every 21 days), followed by Day 1 of every even cycle beginning with Cycle 4 (every 42 days) through end of treatment (average of 4 months).Rate of elimination of the drug from plasma after oral administration
SecondaryPeak to trough ratioDays 1 and 2 of first 2 cycles (every 21 days), followed by Day 1 of every even cycle beginning with Cycle 4 (every 42 days) through end of treatment (average of 4 months).Measure how drug effect is sustained over dose interval
SecondaryObserved accumulation ratioDays 1 and 2 of first 2 cycles (every 21 days), followed by Day 1 of every even cycle beginning with Cycle 4 (every 42 days) through end of treatment (average of 4 months).Relationship between the dosing interval and the rate of elimination for the drug
SecondaryPharmacodynamic immune effects in paired tumor biopsiesPredose through cycle 3 (each cycle is 21 days)Asses changes in tumor infiltrating helper T cells, cytoxic T cells and regulatory monocyte/macrophages with study treatment

Source ClinicalTrials.govtrials-2026-11-12-0.4.0

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

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