Medication Summary
Chemotherapy should be administered in conjunction with radiation therapy to most patients with stage IB (high risk) to IVA. Cisplatin is the agent used most commonly, although 5-fluorouracil also is used frequently. For patients with metastatic disease, cisplatin remains the most active agent. Topotecan, ifosfamide, and paclitaxel also have significant activity in this setting. The combination of topotecan and cisplatin improves overall survival. However, acute toxicities are also increased.
Chemotherapy Agents
Class Summary
These agents inhibit cell growth and proliferation.
Cisplatin
Intrastrand cross-linking of DNA and inhibition of DNA precursors are among the proposed mechanisms of action for cisplatin. This agent is used in combination with radiation therapy.
Fluorouracil (Adrucil)
Fluorouracil is a pyrimidine antagonist. Several mechanisms of action have been proposed, including inhibition of thymidylate synthase and inhibition of RNA synthesis. This agent is also a potent radiosensitizer.
Ifosfamide (Ifex)
Ifosfamide forms DNA interstrand and intrastrand bonds that interfere with protein synthesis.
Paclitaxel (Abraxane)
The mechanisms of action of paclitaxel are tubulin polymerization and microtubule stabilization.
Topotecan (Hycamtin)
Topotecan inhibits topoisomerase I, inhibiting DNA replication. Patients who have received prior chemotherapy should be given a lower dose initially.
Vaccines
Class Summary
Two human papillomavirus (HPV) vaccines are now available for prevention of HPV-associated dysplasias and neoplasias, including cervical cancer, genital warts (condyloma acuminata), and precancerous genital lesions. The immunization series should be completed in girls and young women aged 9-26 years.[43]
Papillomavirus vaccine, quadrivalent (Gardasil)
This quadrivalent HPV recombinant vaccine is the first vaccine indicated to prevent cervical cancer, genital warts (condyloma acuminata), and precancerous genital lesions (eg, cervical adenocarcinoma in situ; cervical intraepithelial neoplasia grades 1, 2, and 3; vulvar intraepithelial neoplasia grades 2 and 3; vaginal intraepithelial neoplasia grades 2 and 3) due to HPV types 6, 11, 16, and 18. Vaccine efficacy is mediated by humoral immune responses following the immunization series.
Papillomavirus vaccine, bivalent (Cervarix)
This recombinant HPV vaccine is prepared from the L1 protein of HPV types 16 and 18. It is indicated in girls and women (ages 10-25 y) for prevention of diseases caused by oncogenic HPV types 16 and 18 (ie, cervical cancer, cervical intraepithelial neoplasia grade 2 or higher, adenocarcinoma in situ, cervical intraepithelial grade 1).
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| Parameters | ACS Recommendations | |
| Age to start screening | Begin screening with cytology at 21 years old, regardless of sexual history | |
| Screening interval age 21–29 | Screen with cytology alone every 3 years.* HPV testing should not be used in this age group. | |
| Screening interval age 30-65 | Screen with a combination of cytology and HPV testing every 5 years (preferred) or cytology alone every 3 years. Screening by HPV testing alone is generally not recommended.* | |
| Age to stop screening | Age 65, if the woman has adequate negative prior screening and is not otherwise at high risk for cervical cancer | |
| Screening after hysterectomy | Not indicated for women without a cervix and without a history of a high-grade precancerous lesion (eg, CIN2 or CIN3) in the past 20 years or cervical cancer ever | |
| HPV-vaccinated women | Screen according to the same recommendations as for unvaccinated women | |
| These guidelines do not address special populations (eg, women with a history of cervical cancer, women who were exposed in utero to diethylstilbestrol, women who are immunocompromised) who may require more intensive or alternative screening. *If abnormal test results are present, further testing and management should be performed according to the ASCCP Guidelines as noted below under Management of Abnormal Cytology. | ||
| TNM Stage | FIGO Stage | |
| Tx | - | Primary tumor cannot be assessed |
| T0 | - | No evidence of primary tumor |
| Tis | 0 | Carcinoma in situ |
| T1 | I | Cervical carcinoma confined to uterus (extension to corpus should be disregarded) |
| T1a | IA | Invasive carcinoma diagnosed only by microscopy. All macroscopically visible lesions--even with superficial invasion--are T1b/1B. Stromal invasion with a maximal depth of 5.0 mm measured from the base of the epithelium and a horizontal spread of 7.0 mm or less. Vascular space involvement, venous or lymphatic, does not affect classification. |
| T1a1 | IA1 | Measured stromal invasion 3 mm or less in depth and 7 mm or less in lateral spread |
| T1a2 | IA2 | Measured stromal invasion more than 3 mm but not more than 5 mm with a horizontal spread 7 mm or less |
| T1b | IB | Clinically visible lesion confined to the cervix or microscopic lesion greater than IA2 |
| T1b1 | IB1 | Clinically visible lesion 4 cm or less in greatest dimension |
| IB2 | Clinically visible lesion more than 4 cm | |
| T2 | II | Cervical carcinoma invades beyond uterus but not to pelvic wall or to the lower third of vagina |
| T2a | IIA | Tumor without parametrial invasion |
| T2b | IIB | Tumor with parametrial invasion |
| T3 | III | Tumor extends to the pelvic wall and/or involves the lower third of the vagina and/or causes hydronephrosis or nonfunctioning kidney |
| T3a | IIIA | Tumor involves lower third of vagina; no extension to pelvic wall |
| T3b | IIIB | Tumor extends to pelvic wall and/or causes hydronephrosis or nonfunctioning kidney |
| - | IV | Cervical carcinoma has extended beyond the true pelvis or has involved (biopsy proven) the bladder mucosa or rectal mucosa. Bullous edema does not qualify as a criteria for stage IV disease. |
| T4 | IVA | Spread to adjacent organs (bladder, rectum, or both) |
| M1 | IVB | Distant metastasis |
| Stage | Tumor | Node | Metastasis |
| 0 | Tis | N0 | M0 |
| IA1 | T1a1 | N0 | M0 |
| IA2 | T1a2 | N0 | M0 |
| IB1 | T1b1 | N0 | M0 |
| IIA | T2a | N0 | M0 |
| IIB | T2b | N0 | M0 |
| IIIA | T3a | N0 | M0 |
| IIIB | T1 | N1 | M0 |
| - | T2 | N1 | M0 |
| - | T3a | N1 | M0 |
| - | T3b | Any N | M0 |
| IVA | T4 | Any N | M0 |
| IVB | Any T | Any N | M1 |

