AK104 Plus Radiotherapy Combined With Standard Therapy Versus Standard Therapy as First-Line Treatment for pMMR/MSS CRLM (APSOC)

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorFudan University

About this trial

This is a prospective, randomized controlled, single-center phase II clinical study. It aims to compare the efficacy of AK104 plus radiotherapy combined with standard therapy versus standard therapy as first-line treatment for liver metastases from metastatic colorectal cancer.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age ≥ 18 years, with no gender restriction;

Histologically or cytologically confirmed colorectal cancer;

Presence of liver metastases, with at least one measurable target lesion (per RECIST 1.1 criteria) in addition to a single liver metastatic lesion amenable to radiotherapy; patients with initially resectable colorectal cancer liver metastases are excluded;

Treatment-naive patients; or patients with postoperative recurrence who have not received any anti-tumor therapy within 6 months and at least 6 months have elapsed since the last adjuvant chemotherapy;

Disqualifiers

History of other malignancy within 3 years prior to enrollment, except for cured carcinoma in situ of the cervix or basal cell carcinoma of the skin.

Symptomatic brain or meningeal metastases, except those treated locally and stable for more than 2 months without symptoms.

Presence of gastrointestinal obstruction, gastrointestinal bleeding (≥+++ fecal occult blood), or perforation.

Prior treatment with anti-PD-1, anti-PD-L1, anti-PD-L2, CD137, or CTLA-4 antibodies, or any other antibodies or drugs specifically targeting T-cell co-stimulatory or checkpoint pathways.

Trial design

Design model

Parallel

Treatments tested in this trial

  • AK104 with radiotherapy

    Drug

    AK104 with radiotherapy combined with standard of therapy

  • Standard of therapy

    Drug

    Standard of therapy including target therapy and chemotherapy

Treatment groups

73 Participants
are divided into 2 treatment groups
Group A: Control groupExperimental treatment 1 intervention
Group B: Experimental groupExperimental treatment 2 interventions

Trial outcomes

Primary outcomes

1

ORR

Objective Response Rate

Time frame
up to approximately 2 years

Secondary outcomes

1

ETS

Early Tumor Shrink of liver metastasis by MRI

Time frame
up to approximately 2 years
2

PFS

Progression free survival

Time frame
up to approximately 2 years
3

OS

overall survival

Time frame
up to approximately 2 years
4

R0 Resection Rate / NED Rate

Metastatic Lesion R0 Resection Rate / NED Rate

Time frame
up to approximately 2 years

Other outcomes

1

Biomarker

Detection of related biomarkers and exploratory analysis of efficacy and prognosis

Time frame
up to approximately 2 years

Sponsors and contacts

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