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Preoperative Panitumumab and Radiotherapy in Rectal Cancer (PrePaRad)

C

Cliniques universitaires Saint-Luc- Université Catholique de Louvain

Status and phase

Terminated
Phase 2

Conditions

Rectal Cancer

Treatments

Drug: panitumumab

Study type

Interventional

Funder types

Other

Identifiers

NCT00973193
Academic study
UCL-ONCO 09-001

Details and patient eligibility

About

The purpose of this study is to investigate the activity of panitumumab in combination with standard preoperative radiotherapy in locally advanced rectal cancer, followed by complete surgery and adjuvant chemotherapy.

The main hypothesis of the study is that the association of EGFR-targeting agent and radiation therapy could be as effective or even improve the rate of pathological complete tumoral response with fewer toxicities in comparison to the standard of care using chemoradiation therapy.

Full description

Anti-EGFR monoclonal antibodies have radiosensitizing properties. In particular, cetuximab in combination with curative-intent radiotherapy has been reported to increase median overall survival over radiation therapy alone in locally advanced head and neck carcinoma.

Similar benefit in rectal cancer is expected. However, preliminary studies revealed that the combination of chemoradiation and cetuximab did not seem to improve the pathological tumor response. However, in the past studies, the selection of patients' population was not optimal since KRAS mutational status was not considered during recruitments.

Therefore, new trials to investigate EGFR-targeting therapies in combination with radiotherapy in wild-type KRAS patients are required.

Adjuvant chemotherapy has also shown to decrease the risk of local relapse in patients who did not receive chemotherapy during radiotherapy. In our study, since there will be no chemotherapy given during the preoperative setting, the administration of adjuvant chemotherapy postoperatively is highly recommended.

Enrollment

20 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • ECOG Performance Status 0-1
  • Histologically proven adenocarcinoma of the rectum, T3-T4 and/or N+ M0
  • Wild-type KRAS
  • No prior pelvic irradiation
  • Normal bone marrow, hepatic, renal, cardiac functions
  • No secondary malignancy
  • No other active, uncontrolled disease
  • Signed informed consent

Exclusion criteria

  • KRAS mutation
  • Established or suspected metastasis
  • Prior pelvic irradiation
  • Previous exposure to EGFR-targeting therapies
  • Patients under any other investigational agent(s)
  • Concurrent systemic immune therapy, chemotherapy, hormone therapy
  • Drug and/or alcohol abuse
  • Grade 3 to 4 allergic reaction to any of the components of the treatment
  • History or presence of interstitial lung disease
  • Active, uncontrolled cardiovascular disease

Trial design

Primary purpose

Treatment

Allocation

N/A

Interventional model

Single Group Assignment

Masking

None (Open label)

20 participants in 1 patient group

panitumumab
Experimental group
Treatment:
Drug: panitumumab

Trial contacts and locations

8

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Data sourced from clinicaltrials.gov

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