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MRKMerck Sharp & Dohme LLCSigning up patients

A Study of Pembrolizumab in Japanese Pediatric Participants With Solid Tumors or Lymphomas and Japanese Adult Participants With Merkel Cell Carcinoma (MK-3475-G21/KEYNOTE-G21)

Malignant Neoplasm · Carcinoma, Merkel Cell · Lymphoma

2Calmworry score, out of 100

No strong warning signs right now. The score counts warning signs; it is not a prediction.

Why this score

  • 5 insiders sold shares within a month

    Since Aug 13, 2026 · was worth 5, fading over time

    +1.9
Worry score2

Score over time

Stage
Phase 1/2
Patients
20 (planned)
Started
Jun 23, 2026
Main results expected
Mar 30, 2029
Fully finished
Dec 31, 2029
Results posted
not yet

What counts as success

The trial's main goal(s), called the “primary outcome.”

  • Arm 1: Number of Participants Who Experience an Adverse Event (AE)

    Measured over: Up to approximately 28 months

  • Arm 1: Number of Participants Who Discontinue Study Treatment Due To an AE

    Measured over: Up to approximately 25 months

  • Arm 1: Area Under the Concentration-Time Curve (AUC) of Pembrolizumab

    Measured over: Predose at Cycle 1, 2, 4, 8 and every 4 cycles thereafter up to 35 cycles; postdose at Cycle 1 and Cycle 8 (a cycle is 21 days)

  • Arm 1: Maximum Concentration (Cmax) of Pembrolizumab

    Measured over: Predose at Cycle 1, 2, 4, 8 and every 4 cycles thereafter up to 35 cycles; postdose at Cycle 1 and Cycle 8 (a cycle is 21 days)

  • Arm 1: Minimum Plasma Concentration (Cmin) of Pembrolizumab

    Measured over: Predose at Cycle 1, 2, 4, 8 and every 4 cycles thereafter up to 35 cycles; postdose at Cycle 1 and Cycle 8 (a cycle is 21 days)

  • Arm 2: Objective Response Rate (ORR) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by Blinded Independent Central Review (BICR)

    Measured over: Up to approximately 37 months

Changes Tremor has spotted

No changes since Tremor started watching this trial.
Show details (technical version)

Score inputs

  • insider_selling_cluster: base 5, now 1.9, since 2026-08-13, fades (half-life)

Raw record changes

  • none yet

Trial ID NCT07302347 · record last updated 2026-07-13 · checked 2026-11-09 15:47 UTC

See the official record on ClinicalTrials.gov (NCT07302347) ↗