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NCT03157128 · FLOW

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A Study of Selpercatinib (LOXO-292) in Participants With Advanced Solid Tumors, RET Fusion-Positive Solid Tumors, and Medullary Thyroid Cancer (LIBRETTO-001) · Source last updated 2026-04-16

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

groups
  1. description
    Participants received Selpercatinib 20 milligrams (mg) administered orally once daily (QD), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG000
    title
    Phase 1: 20 mg Selpercatinib QD
  2. description
    Participants received Selpercatinib 20 milligrams (mg) administered orally twice daily (BID), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG001
    title
    Phase 1: 20 mg Selpercatinib BID
  3. description
    Participants received Selpercatinib 40 milligrams (mg) administered orally twice daily (BID), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG002
    title
    Phase 1: 40 mg Selpercatinib BID
  4. description
    Participants received Selpercatinib 60 milligrams (mg) administered orally twice daily (BID), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG003
    title
    Phase 1: 60 mg Selpercatinib BID
  5. description
    Participants received Selpercatinib 160 milligrams (mg) administered orally once daily (QD), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG004
    title
    Phase 1: 160 mg Selpercatinib QD
  6. description
    Participants received Selpercatinib 80 milligrams (mg) administered orally twice daily (BID), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG005
    title
    Phase 1: 80 mg Selpercatinib BID
  7. description
    Participants received Selpercatinib 120 milligrams (mg) administered orally twice daily (BID), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG006
    title
    Phase 1: 120 mg Selpercatinib BID
  8. description
    Participants received Selpercatinib 160 milligrams (mg) administered orally twice daily (BID), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG007
    title
    Phase 1: 160 mg Selpercatinib BID
  9. description
    Participants received Selpercatinib 200 milligrams (mg) administered orally twice daily (BID), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG008
    title
    Phase 1: 200 mg Selpercatinib BID
  10. description
    Participants received Selpercatinib 240 milligrams (mg) administered orally twice daily (BID), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG009
    title
    Phase 1: 240 mg Selpercatinib BID
  11. description
    Participants with Rearranged during transfection (RET) Fusion solid tumor progressed on/intolerant to standard first line therapy received Selpercatinib 160 milligrams (mg) administered orally twice daily (BID), in a continuous 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG010
    title
    Phase 2, Cohort 1: RET Fusion Solid Tumor
  12. description
    Participants with RET Fusion solid tumor without standard first line therapy received Selpercatinib 160 milligrams (mg) administered orally twice daily (BID), in a continuous 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG011
    title
    Phase 2, Cohort 2: RET Fusion Solid Tumor Without Standard Therapy
periods
  1. milestones
    1. achievements
      1. group Id
        FG000
        num Subjects
        6
      2. group Id
        FG001
        num Subjects
        10
      3. group Id
        FG002
        num Subjects
        16
      4. group Id
        FG003
        num Subjects
        12
      5. group Id
        FG004
        num Subjects
        1
      6. group Id
        FG005
        num Subjects
        20
      7. group Id
        FG006
        num Subjects
        19
      8. group Id
        FG007
        num Subjects
        764
      9. group Id
        FG008
        num Subjects
        3
      10. group Id
        FG009
        num Subjects
        6
      11. group Id
        FG010
        num Subjects
        0
      12. group Id
        FG011
        num Subjects
        0
      type
      STARTED
    2. achievements
      1. group Id
        FG000
        num Subjects
        6
      2. group Id
        FG001
        num Subjects
        10
      3. group Id
        FG002
        num Subjects
        16
      4. group Id
        FG003
        num Subjects
        12
      5. group Id
        FG004
        num Subjects
        1
      6. group Id
        FG005
        num Subjects
        20
      7. group Id
        FG006
        num Subjects
        19
      8. group Id
        FG007
        num Subjects
        764
      9. group Id
        FG008
        num Subjects
        3
      10. group Id
        FG009
        num Subjects
        6
      11. group Id
        FG010
        num Subjects
        0
      12. group Id
        FG011
        num Subjects
        0
      type
      COMPLETED
    3. achievements
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        0
      12. group Id
        FG011
        num Subjects
        0
      type
      NOT COMPLETED
    title
    Phase 1 (Dose Escalation)
  2. drop Withdraws
    1. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        61
      12. group Id
        FG011
        num Subjects
        21
      type
      Ongoing
    2. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        33
      12. group Id
        FG011
        num Subjects
        7
      type
      Withdrawal by Subject
    3. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        7
      12. group Id
        FG011
        num Subjects
        4
      type
      Lost to Follow-up
    4. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        147
      12. group Id
        FG011
        num Subjects
        27
      type
      Death
    5. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        34
      12. group Id
        FG011
        num Subjects
        9
      type
      Sponsor's decision
    6. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        17
      12. group Id
        FG011
        num Subjects
        2
      type
      Moved to commercial supply of drug
    7. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        1
      12. group Id
        FG011
        num Subjects
        1
      type
      Disease progression
    8. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        5
      12. group Id
        FG011
        num Subjects
        0
      type
      Physician Decision
    9. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        2
      12. group Id
        FG011
        num Subjects
        2
      type
      Discontinued due to Continued Access
    10. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        0
      12. group Id
        FG011
        num Subjects
        1
      type
      Alternative treatment therapy/SOC drug
    11. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        0
      12. group Id
        FG011
        num Subjects
        0
      type
      Enrolled for another trial
    12. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        0
      12. group Id
        FG011
        num Subjects
        0
      type
      Participant's Non-compliant
    milestones
    1. achievements
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. comment
        Participants who completed Phase 1 portion of the study, entered the Phase 2 to receive 160 mg Selpercatinib BID as per their tumor types.
        group Id
        FG010
        num Subjects
        307
      12. comment
        Participants who completed Phase 1 portion of the study, entered the Phase 2 to receive 160 mg Selpercatinib BID as per their tumor types.
        group Id
        FG011
        num Subjects
        74
      type
      STARTED
    2. achievements
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        0
      12. group Id
        FG011
        num Subjects
        0
      type
      COMPLETED
    3. achievements
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        307
      12. group Id
        FG011
        num Subjects
        74
      type
      NOT COMPLETED
    title
    Phase 2 (Dose Expansion)
pre Assignment Details
In Phase 2, participants were assigned to one of six tumor-based groups: RET Fusion Solid Tumor, RET Fusion Solid Tumor Without Standard Therapy, RET Mutant MTC, RET Mutant MTC Without Standard Therapy, Advanced RET Altered Solid Tumor, RET Inhibitor-Discontinued Participants and received selpercatinib at the RP2D. The current results reported are for the primary completion date (i.e., up to 7 years 9 months). Additional results will be reported at the time of final results reporting.
recruitment Details
This study includes two parts: * Phase 1 (dose escalation) and; * Phase 2 (dose expansion) In Phase 1, participants received selpercatinib, with dosing based on body surface area. The Phase 2 portion of the study was opened after confirmation of the RP2D of 160 mg BID.
Complete source fields
groups
  1. description
    Participants received Selpercatinib 20 milligrams (mg) administered orally once daily (QD), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG000
    title
    Phase 1: 20 mg Selpercatinib QD
  2. description
    Participants received Selpercatinib 20 milligrams (mg) administered orally twice daily (BID), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG001
    title
    Phase 1: 20 mg Selpercatinib BID
  3. description
    Participants received Selpercatinib 40 milligrams (mg) administered orally twice daily (BID), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG002
    title
    Phase 1: 40 mg Selpercatinib BID
  4. description
    Participants received Selpercatinib 60 milligrams (mg) administered orally twice daily (BID), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG003
    title
    Phase 1: 60 mg Selpercatinib BID
  5. description
    Participants received Selpercatinib 160 milligrams (mg) administered orally once daily (QD), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG004
    title
    Phase 1: 160 mg Selpercatinib QD
  6. description
    Participants received Selpercatinib 80 milligrams (mg) administered orally twice daily (BID), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG005
    title
    Phase 1: 80 mg Selpercatinib BID
  7. description
    Participants received Selpercatinib 120 milligrams (mg) administered orally twice daily (BID), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG006
    title
    Phase 1: 120 mg Selpercatinib BID
  8. description
    Participants received Selpercatinib 160 milligrams (mg) administered orally twice daily (BID), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG007
    title
    Phase 1: 160 mg Selpercatinib BID
  9. description
    Participants received Selpercatinib 200 milligrams (mg) administered orally twice daily (BID), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG008
    title
    Phase 1: 200 mg Selpercatinib BID
  10. description
    Participants received Selpercatinib 240 milligrams (mg) administered orally twice daily (BID), in a 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG009
    title
    Phase 1: 240 mg Selpercatinib BID
  11. description
    Participants with Rearranged during transfection (RET) Fusion solid tumor progressed on/intolerant to standard first line therapy received Selpercatinib 160 milligrams (mg) administered orally twice daily (BID), in a continuous 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG010
    title
    Phase 2, Cohort 1: RET Fusion Solid Tumor
  12. description
    Participants with RET Fusion solid tumor without standard first line therapy received Selpercatinib 160 milligrams (mg) administered orally twice daily (BID), in a continuous 28-day treatment cycle. Treatment was continued until disease progression, unacceptable toxicity, or treatment discontinuation for other reasons.
    id
    FG011
    title
    Phase 2, Cohort 2: RET Fusion Solid Tumor Without Standard Therapy
periods
  1. milestones
    1. achievements
      1. group Id
        FG000
        num Subjects
        6
      2. group Id
        FG001
        num Subjects
        10
      3. group Id
        FG002
        num Subjects
        16
      4. group Id
        FG003
        num Subjects
        12
      5. group Id
        FG004
        num Subjects
        1
      6. group Id
        FG005
        num Subjects
        20
      7. group Id
        FG006
        num Subjects
        19
      8. group Id
        FG007
        num Subjects
        764
      9. group Id
        FG008
        num Subjects
        3
      10. group Id
        FG009
        num Subjects
        6
      11. group Id
        FG010
        num Subjects
        0
      12. group Id
        FG011
        num Subjects
        0
      type
      STARTED
    2. achievements
      1. group Id
        FG000
        num Subjects
        6
      2. group Id
        FG001
        num Subjects
        10
      3. group Id
        FG002
        num Subjects
        16
      4. group Id
        FG003
        num Subjects
        12
      5. group Id
        FG004
        num Subjects
        1
      6. group Id
        FG005
        num Subjects
        20
      7. group Id
        FG006
        num Subjects
        19
      8. group Id
        FG007
        num Subjects
        764
      9. group Id
        FG008
        num Subjects
        3
      10. group Id
        FG009
        num Subjects
        6
      11. group Id
        FG010
        num Subjects
        0
      12. group Id
        FG011
        num Subjects
        0
      type
      COMPLETED
    3. achievements
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        0
      12. group Id
        FG011
        num Subjects
        0
      type
      NOT COMPLETED
    title
    Phase 1 (Dose Escalation)
  2. drop Withdraws
    1. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        61
      12. group Id
        FG011
        num Subjects
        21
      type
      Ongoing
    2. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        33
      12. group Id
        FG011
        num Subjects
        7
      type
      Withdrawal by Subject
    3. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        7
      12. group Id
        FG011
        num Subjects
        4
      type
      Lost to Follow-up
    4. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        147
      12. group Id
        FG011
        num Subjects
        27
      type
      Death
    5. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        34
      12. group Id
        FG011
        num Subjects
        9
      type
      Sponsor's decision
    6. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        17
      12. group Id
        FG011
        num Subjects
        2
      type
      Moved to commercial supply of drug
    7. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        1
      12. group Id
        FG011
        num Subjects
        1
      type
      Disease progression
    8. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        5
      12. group Id
        FG011
        num Subjects
        0
      type
      Physician Decision
    9. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        2
      12. group Id
        FG011
        num Subjects
        2
      type
      Discontinued due to Continued Access
    10. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        0
      12. group Id
        FG011
        num Subjects
        1
      type
      Alternative treatment therapy/SOC drug
    11. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        0
      12. group Id
        FG011
        num Subjects
        0
      type
      Enrolled for another trial
    12. reasons
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        0
      12. group Id
        FG011
        num Subjects
        0
      type
      Participant's Non-compliant
    milestones
    1. achievements
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. comment
        Participants who completed Phase 1 portion of the study, entered the Phase 2 to receive 160 mg Selpercatinib BID as per their tumor types.
        group Id
        FG010
        num Subjects
        307
      12. comment
        Participants who completed Phase 1 portion of the study, entered the Phase 2 to receive 160 mg Selpercatinib BID as per their tumor types.
        group Id
        FG011
        num Subjects
        74
      type
      STARTED
    2. achievements
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        0
      12. group Id
        FG011
        num Subjects
        0
      type
      COMPLETED
    3. achievements
      1. group Id
        FG000
        num Subjects
        0
      2. group Id
        FG001
        num Subjects
        0
      3. group Id
        FG002
        num Subjects
        0
      4. group Id
        FG003
        num Subjects
        0
      5. group Id
        FG004
        num Subjects
        0
      6. group Id
        FG005
        num Subjects
        0
      7. group Id
        FG006
        num Subjects
        0
      8. group Id
        FG007
        num Subjects
        0
      9. group Id
        FG008
        num Subjects
        0
      10. group Id
        FG009
        num Subjects
        0
      11. group Id
        FG010
        num Subjects
        307
      12. group Id
        FG011
        num Subjects
        74
      type
      NOT COMPLETED
    title
    Phase 2 (Dose Expansion)
pre Assignment Details
In Phase 2, participants were assigned to one of six tumor-based groups: RET Fusion Solid Tumor, RET Fusion Solid Tumor Without Standard Therapy, RET Mutant MTC, RET Mutant MTC Without Standard Therapy, Advanced RET Altered Solid Tumor, RET Inhibitor-Discontinued Participants and received selpercatinib at the RP2D. The current results reported are for the primary completion date (i.e., up to 7 years 9 months). Additional results will be reported at the time of final results reporting.
recruitment Details
This study includes two parts: * Phase 1 (dose escalation) and; * Phase 2 (dose expansion) In Phase 1, participants received selpercatinib, with dosing based on body surface area. The Phase 2 portion of the study was opened after confirmation of the RP2D of 160 mg BID.

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Preserved source evidence · Independent clinical review pending · Not medical advice