A Phase 4 interventional study of quadrivalent HPV vaccine and quadrivalent HPV vaccine in Vaccine Effectiveness, HPV Vaccination and Single Dose, sponsored by International Agency for Research on Cancer. Active, not recruiting at 1 site in Zambia. Open to participants aged 9 Years to 20 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-10-05.
Sponsored by International Agency for Research on Cancer · Phase 4, Interventional, and Prevention
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Among 13 studies testing Human Papillomavirus Recombinant Vaccine Quadrivalent, Types 6, 11, 16, 18 in Uterine Cervical Neoplasms — none open to participants now, 2 under way, none of them phase 3. Human Papillomavirus Recombinant Vaccine Quadrivalent, Types 6, 11, 16, 18 · Uterine Cervical Neoplasms.
Among the 13 studies testing Human Papillomavirus Recombinant Vaccine Quadrivalent, Types 6, 11, 16, 18 in Uterine Cervical Neoplasms, this one is the 7th largest by planned enrollment, is the only one that started in 2026, is one of 4 in phase 4, and was the 13th registered.
2,366 studies on the registry are indexed under Uterine Cervical Neoplasms; 677 are open to participants now.
Browse Uterine Cervical Neoplasms studies →None of the 13 studies testing Human Papillomavirus Recombinant Vaccine Quadrivalent, Types 6, 11, 16, 18 in Uterine Cervical Neoplasms is open now. The open studies under Uterine Cervical Neoplasms, anywhere →
No approval found in the FDA or EMA files read. How studies give it is on its page →
Of the 474 Uterine Cervical Neoplasms studies recruiting now, 243 (51%) set no upper age limit and 191 (40%) stop at 75 or younger; 20 take children under 18; 69 take healthy volunteers.
This study: 9 Years to 20 Years · all sexes · healthy volunteers too.
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13 studies; the count open now beside each. This study's row is marked.
A study in two phases is counted once above. Listed by phase, each with its combined phases: Phase 1 2 · Phase 2 2 · Phase 3 4 · Phase 4 4
First in 2001; this study’s year is marked. 1 started in 2026.
By drug class, each counting the studies that test any of its medicines:
This study's planned enrollment of 1,266 is above the median of 100 across 1,738 interventional studies indexed under Uterine Cervical Neoplasms.
Median enrollment 1,266 across the 13 interventional studies. Of the 9 that completed or were terminated, 6 (67%) have results posted.
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4 of 13 have an industry lead sponsor. The 10 most frequent:
International Agency for Research on Cancer is the lead sponsor of 30 studies on the registry; 11 are open to participants now.
International Agency for Research on Cancer has 9 studies filed under Uterine Cervical Neoplasms — fewer than ten, so there is no comparison to draw.
None of the studies under way reaches primary completion within a year.
Among the 13 studies testing Human Papillomavirus Recombinant Vaccine Quadrivalent, Types 6, 11, 16, 18 in Uterine Cervical Neoplasms, from their registry updates:
Nothing recorded among them since 2026-09-25.
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The goal of this study is to compare the immune response of the single dose of the CERVAVAC vaccine with the single dose of Gardasil vaccine in girls/women aged 9 to 20 and boys aged 9 to 14 at 6 months, 12 months and 24 months post vaccination. The vaccine will be given randomly to the boys and girls/women in these age group and they will be followed up to check the immune status developed in them after vaccination. The status of immune response developed by the two differnet vaccines will be compared in these group of participants of the study.
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Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Immunosuppression
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
CERVAVAC-4 single dose vaccine will be administered - off label in one arm
Biological: quadrivalent HPV vaccine
Gardasil-4 single dose vaccine will be administered in one arm
Biological: quadrivalent HPV vaccine
CERVAVAC-4 single dose vaccine
Also known as: CERVAVAC single dose
Gardasil-4 single dose
Also known as: Gardasil-4 vaccine
Geometric mean Titre (GMT) of IgG antibodies against HPV 16 and 18 assessed from blood samples collected at 24 months and measured by M9ELISA on Meso-scale Discovery (MSD®) platform
Time frame: 24 months
Plan to share: Undecided
No publications or documents are linked to this record.
Started Jun 2026 (actual). Primary completion is estimated for Dec 2028, 30 months after the start.
Of 19 phase 4 interventional studies under Uterine Cervical Neoplasms, half reached primary completion within 57 months of starting (the median), counting those still running; a quarter within 18 and three quarters within 86. This study's planned 30 months is below that.
Start moved once since we started tracking on Sep 25, 2026: Apr 2026 → Jun 2026, on Oct 5, 2026.
Earlier changes are on the record history on ClinicalTrials.gov ↗
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is active, not recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Human Papillomavirus Recombinant Vaccine Quadrivalent, Types 6, 11, 16, 18
International Agency for Research on Cancer