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A Study to See if Very Low-Dose Radiation to the Intestine Can Improve Standard Treatment in Patients With Advanced Solid Cancers.

Immunomodulation with 1 Gy low dose intestinal radiation added to upfront chemoimmunotherapy in advanced/metastatic solid tumors: A randomized phase II basket trial. - ILDR-UP

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2026/03/106055
Enrollment
180
Registered
2026-03-12
Start date
Unknown
Completion date
Unknown
Last updated
2026-03-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: C349- Malignant neoplasm of unspecifiedpart of bronchus or lung

Interventions

Intervention1: Intestinal low dose radiation (1 Gy): In the intervention arm, patients will receive a single fraction of 1 Gy intestinal low-dose radiation (ILDR) directed specifically to the small bo

Sponsors

Sameer Bakhshi
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1. ECOG performance status 0-2 2. Histologically confirmed advanced solid tumor amenable to chemoimmunotherapy in the upfront metastatic setting: Non-small cell lung carcinoma, Bladder carcinoma, Head and neck squamous cell carcinoma, Esophageal carcinoma, oTriple negative breast carcinoma. 3. Six months gap from adjuvant or neoadjuvant chemotherapy in the localized setting 4.

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

MeasureTime frame
The primary endpoint of the study is the PFS rate at six months (PFS6). The PFS6 will be defined as the proportion of patients who remain alive and disease-free at six months without disease-progression as confirmed by central radiological review as per iRECIST or death.Timepoint: At Six months

Secondary

MeasureTime frame
ORR, PFS & OS per iRECISTTimepoint: 3 years;ORR per PERCISTTimepoint: 6 months;Safety & tolerability of adding ILDR to standard chemoimmunotherapyTimepoint: 6 months;Impact of ILDR addition to patients health-related quality of lifeTimepoint: 6 months;Relationship between baseline gut microbiome composition and its longitudinal changes with clinical outcomes in the two treatment armsTimepoint: Baseline, prior to chemoimmunotherapy and at 12 weeks;Relationship between baseline plasma metabolome composition and its longitudinal changes with clinical outcomes in the two treatment armsTimepoint: Baseline, prior to chemoimmunotherapy and at 12 weeks

Countries

India

Contacts

Public ContactSameer Bakhshi

Dr BRAIRCH, AIIMS, New Delhi

sambakh@hotmail.com9958828763

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Apr 4, 2026