Skip to content
← Full study record

NCT04106492 · OUTCOME

Phase 2a: Objective Response Rate (ORR)

Phase 1/2a Study of SQ3370 in Patients With Advanced Solid Tumors · Source last updated 2025-11-14

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

Measure
NUMBER
Unit
participants with an objective response
Interval / dispersion
Not reported
Time frame
Up to 1 year

What was measured

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

Groups in this outcome

Cohort A (10 mL SQL70 and 185 mg/m2/Day of SQP33)

Participants will receive SQL70 biopolymer injected intratumorally on Day 1 of each 21-day cycle into a single lesion as determined in Dose Escalation. Then will receive a lower dose than RP2D of SQP33 protodrug administered IV from Day 1 through Day 5 (5 doses) of each 21-day cycle. SQ3370: SQ3370 consists of 2 components: SQL70, a protodrug-activating biopolymer, and SQP33, a protodrug of Doxorubicin

Phase 2a Expansion Group 1 (Extremity STS) (10 mL SQL70 and 250 mg/m2/Day of SQP33)

Participants with soft tissue sarcomas of the extremity AJCC Stage III OR IV (\>5 cm injectable tumors locally advanced and or metastatic, not amendable to primary surgical intervention and who are anthracycline naïve. SQ3370: SQ3370 consists of 2 components: SQL70, a protodrug-activating biopolymer, and SQP33, a protodrug of Doxorubicin

P2a Grp 2 (10 mL SQL70 and 500 mg/m^2/ of SQP33 for 2 Days and and 250 mg/m^2/ of SQP33 for 1 Day)

10 mL of SQL70 injected intratumorally on Day 1 of each 21-day cycle into a single lesion with 500 mg/m\^2 of SQP33 infused on Day 1 and 2 with 250 mg/m\^2 of SQP33 infused on each Day 3 in subjects with locally advanced, unresectable or metastatic soft tissue sarcomas who are anthracycline naïve

P2a Grp 2 (10 mL SQL70 and 250 mg/m^2/Day of SQP33 for Five Days)

10 mL of SQL70 injected intratumorally on Day with 250 mg/m\^2 of SQP33 infused each day on Day 1 through Day 5 in subjects with locally advanced, unresectable or metastatic soft tissue sarcomas who are anthracycline naïve

Group identifiers and denominators belong to this outcome only. They may differ in another outcome or in safety reporting.

Analysis denominator · Participants

GroupSource count
Cohort A (10 mL SQL70 and 185 mg/m2/Day of SQP33)1
Phase 2a Expansion Group 1 (Extremity STS) (10 mL SQL70 and 250 mg/m2/Day of SQP33)2
P2a Grp 2 (10 mL SQL70 and 500 mg/m^2/ of SQP33 for 2 Days and and 250 mg/m^2/ of SQP33 for 1 Day)6
P2a Grp 2 (10 mL SQL70 and 250 mg/m^2/Day of SQP33 for Five Days)6

Reported measurements

Source class 1
Values in participants with an objective response · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Cohort A (10 mL SQL70 and 185 mg/m2/Day of SQP33)0Not reportedNot reportedNot reportedNot reported
Phase 2a Expansion Group 1 (Extremity STS) (10 mL SQL70 and 250 mg/m2/Day of SQP33)1Not reportedNot reportedNot reportedNot reported
P2a Grp 2 (10 mL SQL70 and 500 mg/m^2/ of SQP33 for 2 Days and and 250 mg/m^2/ of SQP33 for 1 Day)0Not reportedNot reportedNot reportedNot reported
P2a Grp 2 (10 mL SQL70 and 250 mg/m^2/Day of SQP33 for Five Days)1Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        0
      2. group Id
        OG001
        value
        1
      3. group Id
        OG002
        value
        0
      4. group Id
        OG003
        value
        1
denoms
  1. counts
    1. group Id
      OG000
      value
      1
    2. group Id
      OG001
      value
      2
    3. group Id
      OG002
      value
      6
    4. group Id
      OG003
      value
      6
    units
    Participants
description
Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.
groups
  1. description
    Participants will receive SQL70 biopolymer injected intratumorally on Day 1 of each 21-day cycle into a single lesion as determined in Dose Escalation. Then will receive a lower dose than RP2D of SQP33 protodrug administered IV from Day 1 through Day 5 (5 doses) of each 21-day cycle. SQ3370: SQ3370 consists of 2 components: SQL70, a protodrug-activating biopolymer, and SQP33, a protodrug of Doxorubicin
    id
    OG000
    title
    Cohort A (10 mL SQL70 and 185 mg/m2/Day of SQP33)
  2. description
    Participants with soft tissue sarcomas of the extremity AJCC Stage III OR IV (\>5 cm injectable tumors locally advanced and or metastatic, not amendable to primary surgical intervention and who are anthracycline naïve. SQ3370: SQ3370 consists of 2 components: SQL70, a protodrug-activating biopolymer, and SQP33, a protodrug of Doxorubicin
    id
    OG001
    title
    Phase 2a Expansion Group 1 (Extremity STS) (10 mL SQL70 and 250 mg/m2/Day of SQP33)
  3. description
    10 mL of SQL70 injected intratumorally on Day 1 of each 21-day cycle into a single lesion with 500 mg/m\^2 of SQP33 infused on Day 1 and 2 with 250 mg/m\^2 of SQP33 infused on each Day 3 in subjects with locally advanced, unresectable or metastatic soft tissue sarcomas who are anthracycline naïve
    id
    OG002
    title
    P2a Grp 2 (10 mL SQL70 and 500 mg/m^2/ of SQP33 for 2 Days and and 250 mg/m^2/ of SQP33 for 1 Day)
  4. description
    10 mL of SQL70 injected intratumorally on Day with 250 mg/m\^2 of SQP33 infused each day on Day 1 through Day 5 in subjects with locally advanced, unresectable or metastatic soft tissue sarcomas who are anthracycline naïve
    id
    OG003
    title
    P2a Grp 2 (10 mL SQL70 and 250 mg/m^2/Day of SQP33 for Five Days)
param Type
NUMBER
reporting Status
POSTED
time Frame
Up to 1 year
title
Phase 2a: Objective Response Rate (ORR)
type
SECONDARY
unit Of Measure
participants with an objective response

Download exact source JSON → · Snapshot ctgov-results-25a395029948b04d52b1253f

Preserved source evidence · Not medical advice