A Study to Test DSP107 in Combination With Atezolizumab in Comparison With Fruquintinib as a New Treatment for Colorectal Cancer.

NCT ID: NCT07235293

Last Updated: 2025-12-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

PHASE2

Total Enrollment

90 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-01-20

Study Completion Date

2027-04-30

Brief Summary

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This clinical study is testing whether a new combination of medicines (DSP107 and atezolizumab) is more effective and safer than an existing treatment (fruquintinib) for people with advanced colorectal cancer that is microsatellite stable (MSS). Participants will be randomly assigned to receive one of the two treatments, and researchers will monitor how well the cancer responds, how safe the treatments are, and how the body processes them. The study hopes to show that the new combination can improve outcomes for patients with this type of colorectal cancer.

Detailed Description

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This Phase 2b, randomized, open-label, multicenter study will enroll participants with advanced MSS or mismatch repair-proficient (pMMR) colorectal cancer who have progressed on, or shown intolerance to, standard therapies, including fluoropyrimidine, irinotecan, oxaliplatin, trifluridine/tipiracil (Lonsurf), bevacizumab, and epidermal growth factor receptor (EGFR) inhibitors if RAS wild-type. Participants with BRAF V600E mutation, HER2 amplification/overexpression, KRAS G12C mutation, RET fusion, or NTRK fusion may also have received one prior targeted therapy. Prior treatment with fruquintinib or regorafenib is not allowed.

Participants will be randomized 1:1 into two arms:

Group A (Experimental): DSP107 10 mg/kg intravenously on Days 1, 8, and 15 of each 28-day cycle, administered after atezolizumab 1680 mg IV on Day 1 of each cycle. DSP107 infusion may be shortened after initial tolerance. Atezolizumab infusion may be shortened from 60 to 30 minutes if well tolerated.

Group B (Active Comparator): Fruquintinib 5 mg orally once daily on Days 1-21 of each 28-day cycle, with dosing diaries maintained by participants.

Total duration of study participation for each participant will vary based on factors including treatment tolerability, disease progression and other study discontinuation criteria.

Study duration for participants will include at least:

* Screening Period of up to 28 days
* Treatment Period of up to 24 cycles of 28 days
* Safety Follow-up Period of up to 90 days\* from the last dose of IP or active comparator.

Conditions

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Colorectal Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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DSP107 in combination with Atezolizumab

DSP107 10 mg/kg IV on Days 1, 8, and 15 of each 28-day cycle. Atezolizumab 1680 mg IV on Day 1 of each 28-day cycle.

Group Type EXPERIMENTAL

DSP107 + Atezolizumab

Intervention Type DRUG

DSP107 infusion begins \~30 (±10) minutes after completion of atezolizumab infusion on Day 1.

Fruquintinib

Participants will receive fruquintinib orally in 28-day cycles, for up to 24 cycles (96 weeks), or until disease progression, unacceptable toxicity, or study withdrawal.

Group Type ACTIVE_COMPARATOR

Fruquintinib

Intervention Type DRUG

5 mg orally, once daily (with or without food), on Days 1-21 of each 28-day cycle, followed by 7 days off.

Interventions

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DSP107 + Atezolizumab

DSP107 infusion begins \~30 (±10) minutes after completion of atezolizumab infusion on Day 1.

Intervention Type DRUG

Fruquintinib

5 mg orally, once daily (with or without food), on Days 1-21 of each 28-day cycle, followed by 7 days off.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Are ≥ 18 years of age with a life expectancy of \> 3 months.
2. Participants with histologically confirmed, inoperable, MSS and/or pMMR CRC which has progressed to, or is intolerant to, specified therapies (and has received prior treatment with no more than 3 lines of therapy).

Note: Lines of therapy are defined by disease progression between therapies. Participants who discontinue their prior regimen due to toxicity (in the absence of disease recurrence/progression) will also have their prior therapy count as one prior regimen.
3. Measurable disease per RECIST v1.1.

Exclusion Criteria

1. Central nervous system (CNS) metastases unless stable 2 months post definitive therapy with steroids.
2. Unresolved AEs of Grade 2 or higher from prior anticancer therapy.
3. Past or current history of autoimmune disease or immune deficiency.
4. History of other malignancy within 3 years of first study treatment cycle.
5. Current or recent treatment with certain therapies including specified anticancer treatments, modulators of CYP3A4 and immunomodulating therapies (prior treatment with CPIs is not exclusory).
6. Known allergy or hypersensitivity to any of the test compounds, materials, or contraindication to test product.
7. Clinically significant abnormal laboratory safety tests.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Novotech (Australia) Pty Limited

INDUSTRY

Sponsor Role collaborator

Kahr Bio Australia Pty Ltd

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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University of Colarodo Cancer Center

Aurora, Colorado, United States

Site Status

Mayo Clinic

Florida City, Florida, United States

Site Status

Duke Cancer Institute - Duke Cancer Center

Durham, North Carolina, United States

Site Status

UPMC Hillman Cancer Center

Pittsburgh, Pennsylvania, United States

Site Status

The University of Texas MD Anderson Cancer Center

Texas City, Texas, United States

Site Status

The Queen Elizabeth Hospital

Woodville, Adelaide, Australia

Site Status

Chris O'brien Lifehouse

Camperdown, New South Wales, Australia

Site Status

Westmead Hospital

Westmead, New South Wales, Australia

Site Status

Icon Cancer Centre

South Brisbane, Queensland, Australia

Site Status

Flinders Medical Centre SA

Bedford Park, South Australia, Australia

Site Status

Monash Health

Clayton, Victoria, Australia

Site Status

Footscray Hospital - Western Health

Footscray, Victoria, Australia

Site Status

Austin Health

Heidelberg, Victoria, Australia

Site Status

Alfred Health

Melbourne, Victoria, Australia

Site Status

Sunshine Hospital - Western Health

Saint Albans, Victoria, Australia

Site Status

Sir Charles Gairdner Hospital

Nedlands, Western Australia, Australia

Site Status

Countries

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United States Australia

Central Contacts

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Adam Foley Comer

Role: CONTACT

Phone: +972 54 749 1753

Email: [email protected]

Other Identifiers

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DSP107_003

Identifier Type: -

Identifier Source: org_study_id