A Phase 2 interventional study of Biospecimen Collection and HPV Self-Collection in Human Papillomavirus Infection and Human Papillomavirus-Related Carcinoma, sponsored by National Cancer Institute (NCI). Active, not recruiting at 6 sites in United States. Open to participants aged 18 Years to 49 Years. Per ClinicalTrials.gov, last updated 2026-09-14.
Sponsored by National Cancer Institute (NCI) · Phase 2, Interventional, and Prevention
This phase II trial studies whether the nonavalent human papillomavirus vaccine given to adults prior to kidney transplantation can help the body build and maintain an effective immune response during the post-transplant period when they receive immunosuppressive drugs to prevent transplant rejection. This study will help inform our scientific understanding about vaccine-induced immune responses among immunosuppressed individuals.
PRIMARY OBJECTIVE:
I. To assess human papillomavirus (HPV) vaccine-type-specific seroconversion rates at 12-months post-transplantation among kidney transplant recipients who receive >= 1 doses of the recombinant human papillomavirus nonavalent vaccine (Gardasil [registered trademark] 9 HPV vaccine) >= 30 days prior to transplantation.
SECONDARY OBJECTIVE:
I. To assess HPV vaccine-type-specific seroconversion rates at 6- and 12-months post-transplantation stratified by number of doses (1, 2, or 3) of the vaccine given pre-transplant among kidney transplant recipients who receive >= 1 doses of the Gardasil 9 HPV vaccine prior to transplantation.
EXPLORATORY OBJECTIVES:
I. To assess the following among kidney transplant recipients who receive >= 1 doses of the Gardasil 9 HPV vaccine >= 30 days prior to transplantation:
Ia. HPV vaccine-type-specific seroconversion rates at 12-months post-transplantation stratified by:
Ii. Time elapsed between last vaccine dose and the transplant procedure; Iii. Variations in dosing and types of post-transplant immunosuppressant medications; and interactions with type of transplant surgery (living donor/deceased donor); Iiii. Differences in human leukocyte antigen (HLA) histocompatibility between donor and recipient; Iiv. Differences in biological sex (i.e. male versus [vs.] female) of the transplant recipient; Ib. Stability of HPV vaccine-type-specific geometric mean titers (GMT) at 6 and 12-months post-transplantation and rise in HPV vaccine-type-specific GMT at the 13-month post-transplant visit; Ic. Vaccine safety profile and allograft rejection/opportunistic infections stratified by number of vaccine doses and time between the last vaccine dose and the transplant procedure; Id. HPV detection in samples from the cervix/vagina and oral cavity at baseline (pre-vaccination) and at 6- and 12-months post-vaccination, overall and by number of vaccine doses (1, 2, or 3), sexual behavior, type-specific seroconversion rates, and time elapsed between the last vaccine dose and the transplant procedure.
OUTLINE:
Participants receive the first dose of the recombinant human papillomavirus nonavalent vaccine intramuscularly (IM) at baseline, at least 30 days prior to the kidney transplant surgery. The second dose is given at least one month after the first dose. The third dose is given at least five months after the first dose and at least three months after the second dose. The timing of the second and third doses is dependent on the scheduling of the kidney transplant surgery. Patients are followed up at 6- and 12-months after the kidney transplant surgery to measure vaccine-induced immune responses. Patients may receive either one, two, or all three vaccine doses prior to the kidney transplant surgery, and are offered additional visits at least one year after the surgery to complete any remaining doses of the three-dose vaccine series. Patients also undergo collection of blood samples and self-collection of cervical/vaginal samples (female participants only) on study.
495 studies on the registry are indexed under Papillomavirus Infections; 125 are open to participants now.
This study's enrollment of 51 is below the median of 202 across 332 interventional studies indexed under Papillomavirus Infections.
Browse Papillomavirus Infections studies →National Cancer Institute (NCI) is the lead sponsor of 3,506 studies on the registry; 334 are open to participants now.
Of its 402 completed or terminated interventional studies of FDA-regulated products, 365 (91%) have results posted.
Counted across the registry records on this site, refreshed daily.
Candidate for renal transplant, expected to undergo transplant surgery >= 30 days and =\< 12 months after enrollment
Notes:
Exclusion Criteria:
Participants receive the first dose of the recombinant human papillomavirus nonavalent vaccine IM at baseline, at least 30 days prior to the kidney transplant surgery. The second dose is given at least one month after the first dose. The third dose is given at least five months after the first dose and at least three months after the second dose. The timing of the second and third doses is dependent on the scheduling of the kidney transplant surgery. Patients are followed up at 6- and 12-months after the kidney transplant surgery to measure vaccine-induced immune responses. Patients may receive either one, two, or all three vaccine doses prior to the kidney transplant surgery, and are offered additional visits at least one year after the surgery to complete any remaining doses of the three-dose vaccine series. Patients also undergo collection of blood samples and self-collection of cervical/vaginal samples (female participants only) on study.
Procedure: Biospecimen Collection · Procedure: HPV Self-Collection · Other: Questionnaire Administration · Biological: Recombinant Human Papillomavirus Nonavalent Vaccine
Undergo collection of blood samples
Also known as: Biological Sample Collection, Biospecimen Collected, Sample Collection, Specimen Collection
Undergo self-collection of vaginal/cervical samples
Also known as: At-home HPV Self Collection, HPV Self Collection, Human Papillomavirus Self-Collection
Ancillary studies
Given IM
Also known as: Gardasil 9, Nonavalent HPV VLP Vaccine, Recombinant HPV Nonavalent Vaccine, Recombinant Human Papillomavirus 9-valent Vaccine
HPV Vaccine-type-specific Seroconversion Rates Among Kidney Transplant Recipients Who Received ≥ 1 Doses of the Vaccine.
An estimate of the Human papillomavirus (HPV) vaccine-type-specific seroconversion rate provided along with exact Clopper-Pearson 95% confidence intervals (CIs). All participants who received a kidney transplant were included in the primary endpoint analysis, regardless of whether the last vaccine dose was administered ≥ 30 days prior to transplantation.
Time frame: At 12 months post-transplant
To Assess HPV Vaccine-type-specific Seroconversion Rates at 6-months Post-transplantation Stratified by Number of Doses (1, 2, or 3) Given Pre-transplant Among Kidney Transplant.
An estimate of the HPV vaccine-type-specific seroconversion rates at 6-months post-transplantation stratified by number of doses (1, 2, or 3) of the vaccine given pre-transplant was provided along with 95% confidence intervals (CIs). Clopper-Pearson CIs were provided for the overall and stratified estimates.
Time frame: At 6-months post-transplant
To Assess HPV Vaccine-type-specific Seroconversion Rates at 12-months Post-transplantation Stratified by Number of Doses (1, 2, or 3) Given Pre-transplant Among Kidney Transplant.
An estimate of the HPV vaccine-type-specific seroconversion rates at 12-months post-transplantation stratified by number of doses (1, 2, or 3) of the vaccine given pre-transplant was provided along with 95% confidence intervals (CIs). Clopper-Pearson CIs were provided for the overall and stratified estimates.
Time frame: At 12- months post-transplant
Probability of Seroconversion
Descriptive statistics, such as probabilities and exact 95% CIs, will be used to summarize probability of seroconversion at 12 months post-transplant for the following groups: a) time elapsed between last vaccine dose and the transplant procedure, e.g. \< 3 months versus (vs.) \> 3 months. Different groupings will be considered based on observed (e.g. median) and clinical considerations. Time will be summarized using descriptive statistics, e.g. median, interquartile range, or range; groups defined by dosing and types of post-transplant immunosuppressant medications, as well as; b) type of transplant surgery (living donor/deceased donor); c) differences in human leukocyte antigen histocompatibility between donor and recipient; d) differences by biological sex (i.e., male vs. female) of the transplant recipient.
Time frame: At 12 months post-transplant
Stability of HPV Vaccine-type-specific Geometric Mean Titers (GMT)
Stability will be evaluated in relation to changes in the type-specific GMTs between the two post-transplant time points (6- and 12-months post-transplant) and reported as follows: (i) decrease: more than 2-fold decrease, (ii) stable: within 2-fold change, and (iii) increase: greater than 2-fold increase. Stability will also be described in relation to the number of vaccine doses (1, 2 or 3) received in the pre-transplant period.
Time frame: At 6 and 12 months post-transplant
Rise in HPV Vaccine-type-specific GMT
The magnitude of increase in type-specific GMTs at the 13-month post-transplant visit (i.e., 1 month after the booster dose) will be described in relation to the type-specific GMTs at the other post-transplant visits (6 and 12-months post -transplant). Patterns over time will also be explored using graphical techniques. Post-booster dose increase in type-specific GMTs will also be described in relation to the number of vaccine doses (1, 2 or 3) received in the pre-transplant period.
Time frame: At 13 months post-transplant
Vaccine Safety Profile and Allograft Rejection/Opportunistic Infections
Will be summarized using descriptive statistics, stratified by number of vaccine doses and time between the last vaccine dose and the transplant procedure.
Time frame: Up to 13 months post-transplant
HPV Detection in Samples From the Cervix/Vagina, and Oral Cavity
HPV detection in samples from the cervix/vagina, and oral cavity at baseline (pre-vaccination) and at 6- and 12-months post-vaccination, overall and by number of vaccine doses (1, 2, or 3), sexual behavior, type-specific seroconversion rates, and time elapsed between the last vaccine dose and the transplant procedure will be evaluated. All rates of HPV detection will be specified, overall and stratified by number of doses (1, 2, or 3) and time to transplant.
Time frame: Self-collected at baseline (pre-vaccination) and at 6- and 12- months post-vaccination
| Milestone | Prevention (Gardasil 9 HPV Vaccine) |
|---|---|
| Started | 51 |
| Completed | 26 |
| Not completed | 25 |
| Withdrew: Lost to follow-up | 7 |
| Withdrew: Withdrawal by subject | 3 |
| Withdrew: Not eligible to receive transplant within 12 months | 15 |
An estimate of the Human papillomavirus (HPV) vaccine-type-specific seroconversion rate provided along with exact Clopper-Pearson 95% confidence intervals (CIs). All participants who received a kidney transplant were included in the primary endpoint analysis, regardless of whether the last vaccine dose was administered ≥ 30 days prior to transplantation.
| percentage of participants | Prevention (Gardasil 9 HPV Vaccine) |
|---|---|
| HPV 6 | 70 (45.7 to 88.1) |
| HPV 11 | 95 (75.1 to 99.9) |
| HPV 16 | 90 (68.3 to 98.8) |
| HPV 18 | 65 (40.8 to 84.6) |
| HPV 31 | 90 (68.3 to 98.8) |
| HPV 33 | 90 (68.3 to 98.8) |
| HPV 45 | 50 (27.2 to 72.8) |
| HPV 52 | 45 (23.1 to 68.5) |
| HPV 58 | 85 (62.1 to 96.8) |
| HPV All 9 Subtypes | 25 (8.7 to 49.1) |
| HPV ≥ 1 Subtype | 95 (75.1 to 99.9) |
An estimate of the HPV vaccine-type-specific seroconversion rates at 6-months post-transplantation stratified by number of doses (1, 2, or 3) of the vaccine given pre-transplant was provided along with 95% confidence intervals (CIs). Clopper-Pearson CIs were provided for the overall and stratified estimates.
| percentage of participants | One Pre-Transplant Dose | Two Pre-Transplant Doses | Three Pre-Transplant Doses | Overall Pre-Transplants Doses |
|---|---|---|---|---|
| HPV 6 | 100 (43.9 to 100) | 30 (10.8 to 60.3) | 90 (59.6 to 98.2) | 65.2 (42.7 to 83.6) |
| HPV 11 | 100 (43.9 to 100) | 70 (39.2 to 89.2) | 100 (72.2 to 100) | 87 (66.4 to 97.2) |
| HPV 16 | 100 (43.9 to 100) | 90 (59.6 to 98.2) | 100 (72.2 to 100) | 95.7 (78.1 to 99.9) |
| HPV 18 | 66.7 (20.8 to 93.9) | 70 (39.7 to 89.2) | 80 (49 to 94.3) | 73.9 (51.6 to 89.9) |
| HPV 31 | 66.7 (20.8 to 93.9) | 80 (49 to 94.3) | 90 (59.6 to 98.2) | 82.6 (61.2 to 95) |
| HPV 33 | 66.7 (20.8 to 93.9) | 90 (59.6 to 98.2) | 90 (59.6 to 98.2) | 87 (66.4 to 97.2) |
| HPV 45 | 66.7 (20.8 to 93.9) | 20 (5.7 to 51) | 90 (59.6 to 98.2) | 56.5 (34.5 to 76.8) |
| HPV 52 | 66.7 (20.8 to 93.9) | 30 (10.8 to 60.3) | 60 (31.3 to 83.2) | 47.8 (26.8 to 69.4) |
| HPV 58 | 66.7 (20.8 to 93.9) | 70 (39.7 to 89.2) | 80 (49 to 94.3) | 73.9 (51.6 to 89.8) |
| HPV All 9 Subtypes | 66.7 (20.8 to 93.9) | 10 (1.8 to 40.4) | 50 (23.7 to 76.3) | 34.8 (16.4 to 57.3) |
| HPV ≥ 1 Subtype | 100 (43.9 to 100) | 90 (59.6 to 98.2) | 100 (72.2 to 100) | 95.7 (78.1 to 99.9) |
Descriptive statistics, such as probabilities and exact 95% CIs, will be used to summarize probability of seroconversion at 12 months post-transplant for the following groups: a) time elapsed between last vaccine dose and the transplant procedure, e.g. \< 3 months versus (vs.) \> 3 months. Different groupings will be considered based on observed (e.g. median) and clinical considerations. Time will be summarized using descriptive statistics, e.g. median, interquartile range, or range; groups defined by dosing and types of post-transplant immunosuppressant medications, as well as; b) type of transplant surgery (living donor/deceased donor); c) differences in human leukocyte antigen histocompatibility between donor and recipient; d) differences by biological sex (i.e., male vs. female) of the transplant recipient.
Results for this outcome have not been posted.
Stability will be evaluated in relation to changes in the type-specific GMTs between the two post-transplant time points (6- and 12-months post-transplant) and reported as follows: (i) decrease: more than 2-fold decrease, (ii) stable: within 2-fold change, and (iii) increase: greater than 2-fold increase. Stability will also be described in relation to the number of vaccine doses (1, 2 or 3) received in the pre-transplant period.
Results for this outcome have not been posted.
The magnitude of increase in type-specific GMTs at the 13-month post-transplant visit (i.e., 1 month after the booster dose) will be described in relation to the type-specific GMTs at the other post-transplant visits (6 and 12-months post -transplant). Patterns over time will also be explored using graphical techniques. Post-booster dose increase in type-specific GMTs will also be described in relation to the number of vaccine doses (1, 2 or 3) received in the pre-transplant period.
Results for this outcome have not been posted.
Will be summarized using descriptive statistics, stratified by number of vaccine doses and time between the last vaccine dose and the transplant procedure.
Results for this outcome have not been posted.
HPV detection in samples from the cervix/vagina, and oral cavity at baseline (pre-vaccination) and at 6- and 12-months post-vaccination, overall and by number of vaccine doses (1, 2, or 3), sexual behavior, type-specific seroconversion rates, and time elapsed between the last vaccine dose and the transplant procedure will be evaluated. All rates of HPV detection will be specified, overall and stratified by number of doses (1, 2, or 3) and time to transplant.
Results for this outcome have not been posted.
An estimate of the HPV vaccine-type-specific seroconversion rates at 12-months post-transplantation stratified by number of doses (1, 2, or 3) of the vaccine given pre-transplant was provided along with 95% confidence intervals (CIs). Clopper-Pearson CIs were provided for the overall and stratified estimates.
| percentage of participants | One Pre-Transplant Dose | Two Pre-Transplant Doses | Three Pre-Transplant Doses | Overall Pre-Transplants Doses |
|---|---|---|---|---|
| HPV 6 | 100 (15.8 to 100) | 55.6 (21.2 to 86.3) | 77.8 (40 to 97.2) | 70 (45.7 to 88.1) |
| HPV 11 | 100 (15.8 to 100) | 88.9 (51.8 to 99.7) | 100 (66.4 to 100) | 95 (75.1 to 99.9) |
| HPV 16 | 100 (15.8 to 100) | 88.9 (51.8 to 99.7) | 88.9 (51.8 to 99.7) | 90 (68.3 to 98.8) |
| HPV 18 | 100 (15.8 to 100) | 44.4 (13.7 to 78.8) | 77.8 (40 to 97.2) | 65 (40.8 to 84.6) |
| HPV 31 | 100 (15.8 to 100) | 88.9 (51.8 to 99.7) | 88.9 (51.8 to 99.7) | 90 (68.3 to 98.8) |
| HPV 33 | 100 (15.8 to 100) | 88.9 (51.8 to 99.7) | 88.9 (51.8 to 99.7) | 90 (68.3 to 98.8) |
| HPV 45 | 100 (15.8 to 100) | 33.3 (7.5 to 70.1) | 55.6 (21.2 to 86.3) | 50 (27.2 to 72.8) |
| HPV 52 | 100 (34.2 to 100) | 55.6 (21.2 to 86.3) | 22.2 (2.8 to 60) | 45 (23.1 to 68.5) |
| HPV 58 | 100 (15.8 to 100) | 88.9 (51.8 to 99.7) | 77.8 (40 to 97.2) | 85 (62.1 to 96.8) |
| HPV All 9 Subtypes | 100 (15.8 to 100) | 22.2 (2.8 to 60) | 11.1 (0.3 to 48.2) | 25 (8.7 to 49.1) |
| HPV ≥ 1 Subtype | 100 (15.8 to 100) | 88.9 (51.8 to 99.7) | 100 (66.4 to 100) | 95 (75.1 to 99.9) |
Collected over Pre-transplant up to 15 months post-transplant.. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Prevention (Gardasil 9 HPV Vaccine) | 0/51 (0%) | 8/51 (15.7%) | 26/51 (51%) |
| Event | Prevention (Gardasil 9 HPV Vaccine) |
|---|---|
| Renal and urinary disorders - Other, specifyRenal and urinary disorders | 2/51 |
| HyperglycemiaMetabolism and nutrition disorders | 1/51 |
| SepsisInfections and infestations | 1/51 |
| Abdominal infectionInfections and infestations | 1/51 |
| HypertensionVascular disorders | 1/51 |
| DiarrheaGastrointestinal disorders | 1/51 |
| Heart failureCardiac disorders | 1/51 |
| Infections and infestations - Other, specifyInfections and infestations | 1/51 |
| Acute kidney injuryRenal and urinary disorders | 1/51 |
| Event | Prevention (Gardasil 9 HPV Vaccine) |
|---|---|
| Injection site reactionGeneral disorders | 11/51 |
| HeadacheNervous system disorders | 6/51 |
| Infections and infestations - Other, specifyInfections and infestations | 6/51 |
| NauseaGastrointestinal disorders | 4/51 |
| CoughRespiratory, thoracic and mediastinal disorders | 3/51 |
| ParesthesiaNervous system disorders | 3/51 |
Eligible participants registered and enrolled to the trial.
| Age, Continuous(years) | Prevention (Gardasil 9 HPV Vaccine) |
|---|---|
| Median | 40 (33 to 47) |
| Sex: Female, Male(Participants) | Prevention (Gardasil 9 HPV Vaccine) |
|---|---|
| Female | 21 |
| Male | 30 |
| Ethnicity (NIH/OMB)(Participants) | Prevention (Gardasil 9 HPV Vaccine) |
|---|---|
| Hispanic or Latino | 20 |
| Not Hispanic or Latino | 31 |
| Unknown or Not Reported | 0 |
| Race (NIH/OMB)(Participants) | Prevention (Gardasil 9 HPV Vaccine) |
|---|---|
| American Indian or Alaska Native | 0 |
| Asian | 10 |
| Native Hawaiian or Other Pacific Islander | 0 |
| Black or African American | 12 |
| White | 26 |
| More than one race | 0 |
| Unknown or Not Reported | 3 |
| Region of Enrollment(Participants) | Prevention (Gardasil 9 HPV Vaccine) |
|---|---|
| United States | 51 |
| Number of Gardasil 9 Doses Before Kidney Transplant(Participants) | Prevention (Gardasil 9 HPV Vaccine) |
|---|---|
| One | 5 |
| Two | 14 |
| Three | 13 |
| No Transplant | 19 |
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National Cancer Institute (NCI)