Phase I/II prospective clinical trial for the hybrid of intracavitary and interstitial brachytherapy for locally advanced uterine cervical cancer

© 2023. Asian Society of Gynecologic Oncology, Korean Society of Gynecologic Oncology, and Japan Society of Gynecologic Oncology..

OBJECTIVE: The purposes of this trial were to demonstrate the feasibility and effectiveness of the hybrid of intracavitary and interstitial brachytherapy (HBT) for locally advanced cervical cancer patients in the phase I/II prospective clinical trial.

METHODS: Patients with FIGO stage IB2-IVA uterine cervical cancer pretreatment width of which was ≥5 cm measured by magnetic resonance imaging were eligible for this clinical trial. The protocol therapy included 30-30.6 Gy in 15-17 fractions of whole pelvic radiotherapy concurrent with weekly CDDP, followed by 24 Gy in 4 fractions of HBT and pelvic radiotherapy with a central shield up to 50-50.4 Gy in 25-28 fractions. The primary endpoint of phase II part was 2-year pelvic progression-free survival (PPFS) rate higher than historical control of 64%.

RESULTS: Between October 2015 and October 2019, 73 patients were enrolled in the initial registration and 52 patients proceeded to the secondary registration. With the median follow-up period of 37.3 months (range, 13.9-52.9 months), the 2- PPFS was 80.7% (90% confidence interval [CI]=69.7%-88%). Because the lower range of 90% CI of 2-year PPFS was 69.7%, which was higher than the historical control ICBT data of 64%, therefore, the primary endpoint of this study was met.

CONCLUSION: The effectiveness of HBT were demonstrated by a prospective clinical study. Because the dose goal determined in the protocol was lower than 85 Gy, there is room in improvement for local control. A higher dose might have been needed for tumors with poor responses.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:34

Enthalten in:

Journal of gynecologic oncology - 34(2023), 3 vom: 23. Mai, Seite e24

Sprache:

Englisch

Beteiligte Personen:

Murakami, Naoya [VerfasserIn]
Watanabe, Miho [VerfasserIn]
Uno, Takashi [VerfasserIn]
Sekii, Shuhei [VerfasserIn]
Tsujino, Kayoko [VerfasserIn]
Kasamatsu, Takahiro [VerfasserIn]
Machitori, Yumiko [VerfasserIn]
Aoshika, Tomomi [VerfasserIn]
Kato, Shingo [VerfasserIn]
Hirowatari, Hisako [VerfasserIn]
Kaneyasu, Yuko [VerfasserIn]
Nakagawa, Tomio [VerfasserIn]
Ikushima, Hitoshi [VerfasserIn]
Ando, Ken [VerfasserIn]
Murata, Masumi [VerfasserIn]
Yoshida, Ken [VerfasserIn]
Yoshioka, Hiroto [VerfasserIn]
Murata, Kazutoshi [VerfasserIn]
Ohno, Tatsuya [VerfasserIn]
Okonogi, Noriyuki [VerfasserIn]
Saito, Anneyuko I [VerfasserIn]
Ichikawa, Mayumi [VerfasserIn]
Okuda, Takahito [VerfasserIn]
Tsuchida, Keisuke [VerfasserIn]
Sakurai, Hideyuki [VerfasserIn]
Yoshimura, Ryoichi [VerfasserIn]
Yoshioka, Yasuo [VerfasserIn]
Yorozu, Atsunori [VerfasserIn]
Kunitake, Naonobu [VerfasserIn]
Okamoto, Hiroyuki [VerfasserIn]
Inaba, Koji [VerfasserIn]
Kato, Tomoyasu [VerfasserIn]
Igaki, Hiroshi [VerfasserIn]
Itami, Jun [VerfasserIn]

Links:

Volltext

Themen:

Cervical Cancer
Clinical Trial, Phase I
Clinical Trial, Phase II
IC/IS
Image Guided Adaptive Brachytherapy
Intracavitary and Interstitial Brachytherapy
Journal Article

Anmerkungen:

Date Completed 04.05.2023

Date Revised 06.05.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.3802/jgo.2023.34.e24

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM351150064