Trial Outcomes & Findings for Optimal Treatment for Women With a Persisting Pregnancy of Unknown Location (NCT NCT02152696)

NCT ID: NCT02152696

Last Updated: 2020-12-08

Results Overview

The primary outcome measure in each of each 3 treatment arm is the uneventful clinical resolution of a PPUL without change in treatment from the initial management strategy.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

255 participants

Primary outcome timeframe

6 weeks from randomization

Results posted on

2020-12-08

Participant Flow

Participant milestones

Participant milestones
Measure
Expectant Management
Subjects will have their PPUL expectantly managed using serum hCG monitoring. Expectant Management: Pregnancy will be expectantly managed using serum hcg monitoring
Uterine Evacuation With MTX for Some
Subjects will undergo a uterine evacuation. If hCG levels do not sufficiently decrease after the uterine evacuation, the subject will be treated with methotrexate. If hCG levels do sufficiently decrease after the uterine evacuation, no further treatment is required. Methotrexate: Two Dose Protocol: The patient will receive the first dose of MTX 50mg/m2 on treatment day 0. She will receive a second dose of MTX 50mg/m2 on treatment day 4 and a serum hCG level will be drawn. Subsequent doses of MTX will be administered based on hCG levels. Uterine Evacuation: Uterine evacuation or dilation and curettage. At the clinician's discretion, this can be performed using local anesthesia, sedation or general anesthesia and can use a manual or electrical evacuation.
Empiric Treatment With MTX for All
Subjects will be treated with methotrexate, receiving one dose on day 0 and a subsequent dose on day 4. Additional doses will be administered as needed based on hCG levels. Methotrexate: Two Dose Protocol: The patient will receive the first dose of MTX 50mg/m2 on treatment day 0. She will receive a second dose of MTX 50mg/m2 on treatment day 4 and a serum hCG level will be drawn. Subsequent doses of MTX will be administered based on hCG levels.
Overall Study
STARTED
86
87
82
Overall Study
COMPLETED
86
86
81
Overall Study
NOT COMPLETED
0
1
1

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Data were missing for 1 patient in the Expectant management group, 4 in the Uterine evacuation with MTX for some group and 2 in the Empiric treatment with MTX for all.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Expectant Management
n=86 Participants
Subjects will have their PPUL expectantly managed using serum hCG monitoring. Expectant Management: Pregnancy will be expectantly managed using serum hcg monitoring
Uterine Evacuation With MTX for Some
n=87 Participants
Subjects will undergo a uterine evacuation. If hCG levels do not sufficiently decrease after the uterine evacuation, the subject will be treated with methotrexate. If hCG levels do sufficiently decrease after the uterine evacuation, no further treatment is required. Methotrexate: Two Dose Protocol: The patient will receive the first dose of MTX 50mg/m2 on treatment day 0. She will receive a second dose of MTX 50mg/m2 on treatment day 4 and a serum hCG level will be drawn. Subsequent doses of MTX will be administered based on hCG levels. Uterine Evacuation: Uterine evacuation or dilation and curettage. At the clinician's discretion, this can be performed using local anesthesia, sedation or general anesthesia and can use a manual or electrical evacuation.
Empiric Treatment With MTX for All
n=82 Participants
Subjects will be treated with methotrexate, receiving one dose on day 0 and a subsequent dose on day 4. Additional doses will be administered as needed based on hCG levels. Methotrexate: Two Dose Protocol: The patient will receive the first dose of MTX 50mg/m2 on treatment day 0. She will receive a second dose of MTX 50mg/m2 on treatment day 4 and a serum hCG level will be drawn. Subsequent doses of MTX will be administered based on hCG levels.
Total
n=255 Participants
Total of all reporting groups
Age, Continuous
32.1 years
STANDARD_DEVIATION 5.6 • n=86 Participants
31.2 years
STANDARD_DEVIATION 5.9 • n=87 Participants
31.5 years
STANDARD_DEVIATION 5.7 • n=82 Participants
31.6 years
STANDARD_DEVIATION 5.7 • n=255 Participants
Sex: Female, Male
Female
86 Participants
n=86 Participants
87 Participants
n=87 Participants
82 Participants
n=82 Participants
255 Participants
n=255 Participants
Sex: Female, Male
Male
0 Participants
n=86 Participants
0 Participants
n=87 Participants
0 Participants
n=82 Participants
0 Participants
n=255 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
n=86 Participants
8 Participants
n=87 Participants
6 Participants
n=82 Participants
17 Participants
n=255 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
80 Participants
n=86 Participants
75 Participants
n=87 Participants
74 Participants
n=82 Participants
229 Participants
n=255 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
3 Participants
n=86 Participants
4 Participants
n=87 Participants
2 Participants
n=82 Participants
9 Participants
n=255 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=86 Participants
0 Participants
n=87 Participants
0 Participants
n=82 Participants
0 Participants
n=255 Participants
Race (NIH/OMB)
Asian
3 Participants
n=86 Participants
10 Participants
n=87 Participants
4 Participants
n=82 Participants
17 Participants
n=255 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=86 Participants
0 Participants
n=87 Participants
0 Participants
n=82 Participants
0 Participants
n=255 Participants
Race (NIH/OMB)
Black or African American
37 Participants
n=86 Participants
33 Participants
n=87 Participants
32 Participants
n=82 Participants
102 Participants
n=255 Participants
Race (NIH/OMB)
White
41 Participants
n=86 Participants
40 Participants
n=87 Participants
39 Participants
n=82 Participants
120 Participants
n=255 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=86 Participants
0 Participants
n=87 Participants
0 Participants
n=82 Participants
0 Participants
n=255 Participants
Race (NIH/OMB)
Unknown or Not Reported
5 Participants
n=86 Participants
4 Participants
n=87 Participants
7 Participants
n=82 Participants
16 Participants
n=255 Participants
Region of Enrollment
United States
86 Participants
n=86 Participants
87 Participants
n=87 Participants
82 Participants
n=82 Participants
255 Participants
n=255 Participants
Estimated gestational age - week
6.4 weeks
STANDARD_DEVIATION 1.8 • n=85 Participants • Data were missing for 1 patient in the Expectant management group, 4 in the Uterine evacuation with MTX for some group and 2 in the Empiric treatment with MTX for all.
6.9 weeks
STANDARD_DEVIATION 1.9 • n=83 Participants • Data were missing for 1 patient in the Expectant management group, 4 in the Uterine evacuation with MTX for some group and 2 in the Empiric treatment with MTX for all.
6.7 weeks
STANDARD_DEVIATION 2.0 • n=80 Participants • Data were missing for 1 patient in the Expectant management group, 4 in the Uterine evacuation with MTX for some group and 2 in the Empiric treatment with MTX for all.
6.7 weeks
STANDARD_DEVIATION 1.9 • n=248 Participants • Data were missing for 1 patient in the Expectant management group, 4 in the Uterine evacuation with MTX for some group and 2 in the Empiric treatment with MTX for all.
First hCG value at screening (mIU/ml)
661.2 mIU/ml
STANDARD_DEVIATION 688.6 • n=86 Participants
561.9 mIU/ml
STANDARD_DEVIATION 702.5 • n=87 Participants
633.3 mIU/ml
STANDARD_DEVIATION 695.8 • n=82 Participants
618.3 mIU/ml
STANDARD_DEVIATION 694.2 • n=255 Participants

PRIMARY outcome

Timeframe: 6 weeks from randomization

The primary outcome measure in each of each 3 treatment arm is the uneventful clinical resolution of a PPUL without change in treatment from the initial management strategy.

Outcome measures

Outcome measures
Measure
Expectant Management
n=86 Participants
Subjects will have their PPUL expectantly managed using serum hCG monitoring. Expectant Management: Pregnancy will be expectantly managed using serum hcg monitoring
Uterine Evacuation With MTX for Some
n=87 Participants
Subjects will undergo a uterine evacuation. If hCG levels do not sufficiently decrease after the uterine evacuation, the subject will be treated with methotrexate. If hCG levels do sufficiently decrease after the uterine evacuation, no further treatment is required. Methotrexate: Two Dose Protocol: The patient will receive the first dose of MTX 50mg/m2 on treatment day 0. She will receive a second dose of MTX 50mg/m2 on treatment day 4 and a serum hCG level will be drawn. Subsequent doses of MTX will be administered based on hCG levels. Uterine Evacuation: Uterine evacuation or dilation and curettage. At the clinician's discretion, this can be performed using local anesthesia, sedation or general anesthesia and can use a manual or electrical evacuation.
Empiric Treatment With MTX for All
n=82 Participants
Subjects will be treated with methotrexate, receiving one dose on day 0 and a subsequent dose on day 4. Additional doses will be administered as needed based on hCG levels. Methotrexate: Two Dose Protocol: The patient will receive the first dose of MTX 50mg/m2 on treatment day 0. She will receive a second dose of MTX 50mg/m2 on treatment day 4 and a serum hCG level will be drawn. Subsequent doses of MTX will be administered based on hCG levels.
Number of Participants With Uneventful Clinical Resolution of a Pregnancy of Unknown Location Without Change From the Initial Management Strategy
31 Participants
42 Participants
45 Participants

Adverse Events

Expectant Management

Serious events: 2 serious events
Other events: 44 other events
Deaths: 0 deaths

Uterine Evacuation With MTX for Some

Serious events: 2 serious events
Other events: 53 other events
Deaths: 0 deaths

Empiric Treatment With MTX for All

Serious events: 0 serious events
Other events: 46 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Expectant Management
n=86 participants at risk
Subjects will have their PPUL expectantly managed using serum hCG monitoring. Expectant Management: Pregnancy will be expectantly managed using serum hcg monitoring
Uterine Evacuation With MTX for Some
n=87 participants at risk
Subjects will undergo a uterine evacuation. If hCG levels do not sufficiently decrease after the uterine evacuation, the subject will be treated with methotrexate. If hCG levels do sufficiently decrease after the uterine evacuation, no further treatment is required. Methotrexate: Two Dose Protocol: The patient will receive the first dose of MTX 50mg/m2 on treatment day 0. She will receive a second dose of MTX 50mg/m2 on treatment day 4 and a serum hCG level will be drawn. Subsequent doses of MTX will be administered based on hCG levels. Uterine Evacuation: Uterine evacuation or dilation and curettage. At the clinician's discretion, this can be performed using local anesthesia, sedation or general anesthesia and can use a manual or electrical evacuation.
Empiric Treatment With MTX for All
n=82 participants at risk
Subjects will be treated with methotrexate, receiving one dose on day 0 and a subsequent dose on day 4. Additional doses will be administered as needed based on hCG levels. Methotrexate: Two Dose Protocol: The patient will receive the first dose of MTX 50mg/m2 on treatment day 0. She will receive a second dose of MTX 50mg/m2 on treatment day 4 and a serum hCG level will be drawn. Subsequent doses of MTX will be administered based on hCG levels.
Pregnancy, puerperium and perinatal conditions
Hospitalization
0.00%
0/86 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
1.1%
1/87 • Number of events 1 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
0.00%
0/82 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
Pregnancy, puerperium and perinatal conditions
Salpingectomy
2.3%
2/86 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
0.00%
0/87 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
0.00%
0/82 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
Pregnancy, puerperium and perinatal conditions
Right ruptured ectopic pregnancy
0.00%
0/86 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
1.1%
1/87 • Number of events 1 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
0.00%
0/82 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.

Other adverse events

Other adverse events
Measure
Expectant Management
n=86 participants at risk
Subjects will have their PPUL expectantly managed using serum hCG monitoring. Expectant Management: Pregnancy will be expectantly managed using serum hcg monitoring
Uterine Evacuation With MTX for Some
n=87 participants at risk
Subjects will undergo a uterine evacuation. If hCG levels do not sufficiently decrease after the uterine evacuation, the subject will be treated with methotrexate. If hCG levels do sufficiently decrease after the uterine evacuation, no further treatment is required. Methotrexate: Two Dose Protocol: The patient will receive the first dose of MTX 50mg/m2 on treatment day 0. She will receive a second dose of MTX 50mg/m2 on treatment day 4 and a serum hCG level will be drawn. Subsequent doses of MTX will be administered based on hCG levels. Uterine Evacuation: Uterine evacuation or dilation and curettage. At the clinician's discretion, this can be performed using local anesthesia, sedation or general anesthesia and can use a manual or electrical evacuation.
Empiric Treatment With MTX for All
n=82 participants at risk
Subjects will be treated with methotrexate, receiving one dose on day 0 and a subsequent dose on day 4. Additional doses will be administered as needed based on hCG levels. Methotrexate: Two Dose Protocol: The patient will receive the first dose of MTX 50mg/m2 on treatment day 0. She will receive a second dose of MTX 50mg/m2 on treatment day 4 and a serum hCG level will be drawn. Subsequent doses of MTX will be administered based on hCG levels.
General disorders
Persistent dry cough
3.5%
3/86 • Number of events 3 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
5.7%
5/87 • Number of events 5 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
6.1%
5/82 • Number of events 5 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
General disorders
Any Other Side Effects
7.0%
6/86 • Number of events 6 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
4.6%
4/87 • Number of events 4 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
3.7%
3/82 • Number of events 3 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
General disorders
One or more adverse event
51.2%
44/86 • Number of events 44 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
60.9%
53/87 • Number of events 53 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
56.1%
46/82 • Number of events 46 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
Gastrointestinal disorders
Nausea
25.6%
22/86 • Number of events 22 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
36.8%
32/87 • Number of events 32 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
37.8%
31/82 • Number of events 31 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
Gastrointestinal disorders
Vomiting
2.3%
2/86 • Number of events 2 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
12.6%
11/87 • Number of events 11 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
12.2%
10/82 • Number of events 10 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
Reproductive system and breast disorders
Pelvic Pain
43.0%
37/86 • Number of events 37 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
48.3%
42/87 • Number of events 42 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
46.3%
38/82 • Number of events 38 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
Gastrointestinal disorders
Loss of Appetite
29.1%
25/86 • Number of events 25 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
32.2%
28/87 • Number of events 28 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
28.0%
23/82 • Number of events 23 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
Gastrointestinal disorders
Mouth Sores
5.8%
5/86 • Number of events 5 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
6.9%
6/87 • Number of events 6 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
7.3%
6/82 • Number of events 6 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
Gastrointestinal disorders
Diarrhea
10.5%
9/86 • Number of events 9 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
24.1%
21/87 • Number of events 21 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
15.9%
13/82 • Number of events 13 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
General disorders
Heart Burn/Indigestion
8.1%
7/86 • Number of events 7 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
13.8%
12/87 • Number of events 12 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
6.1%
5/82 • Number of events 5 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
General disorders
Hair Loss
4.7%
4/86 • Number of events 4 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
10.3%
9/87 • Number of events 9 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
7.3%
6/82 • Number of events 6 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
Nervous system disorders
Headaches
36.0%
31/86 • Number of events 31 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
28.7%
25/87 • Number of events 25 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
32.9%
27/82 • Number of events 27 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
General disorders
Fatigue
44.2%
38/86 • Number of events 38 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
43.7%
38/87 • Number of events 38 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
43.9%
36/82 • Number of events 36 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
Surgical and medical procedures
Vaginal bleeding
44.2%
38/86 • Number of events 38 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
52.9%
46/87 • Number of events 46 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
47.6%
39/82 • Number of events 39 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
General disorders
Dizziness or weakness
20.9%
18/86 • Number of events 18 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
31.0%
27/87 • Number of events 27 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
20.7%
17/82 • Number of events 17 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
General disorders
Shoulder or back pain
16.3%
14/86 • Number of events 14 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
20.7%
18/87 • Number of events 18 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.
14.6%
12/82 • Number of events 12 • The period of time over which the adverse events were collected is: from the initiation of the study procedures to the end of the study treatment follow-up, which is about an average of 42 days following the last administration of study treatment.

Additional Information

Heping Zhang, PhD

Yale University

Phone: 203-785-5185

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place